ban dich userguide_pm 3

5/21/2018 Ban Dich UserGuide_PM 3

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PowerMILL 3.1

S TAY

SDNG.

Phin bn:3.10 Cpnhpngy : 06/03/0113:32:53


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Mclc

Stay sdng. 1Giithiuchung ................................................................................1

Cnhbo................................................................................1

Qa trnh gia cng chi titChainsaw 3Tngquan .......................................................................................3Chunbm hnh chi tit ................................................................5

nhnghaphi ..................................................................5nhngha dao...........................................................................7Xc nhchiucao dchchuyn nhanh ....................................9Xc nhimgccadao ..............................................11nhnghacc tccnthit.........................................................11

nhnghachinlcchydao .................................................................12Lu cng viccabnli ................................................................18nhnghachinlcchydao Rest Roughing.......................................................................................................... 19

nhnghadao ......................................................................19Tongchydao kiuRest Rounghing ...........................21Lu cng viccabnli ......................................................24

Mphngcc ngchydao th ....................................25nhngha cc chinlcchydao tinh ........................................28

Phn tch chi titcgia cng tinh .....................................29Gia cng cc mtphngdcbngkiuchydao ConstantZ......................................30

nhnghadao ................................................................30Xc nhdung sai .................................................................31Tocc ngbao kiushallow...............................................32nhnghangchydao kiuConstant Z.........................35Lu cng viccabnli ...................................................... 36

Gia cng vng pha trn cachi titbngkiuchydao Raster Pattern.......................................................................................................... 37

nhnghangbao ....................................................37nhnghadao ..............................................................40nhnghangchydao tinh kiuRaster Pattern ...........40Quan st slin ktcacc ngchydao................................................................................................ 42

Lu cng viccabnli .......................................................45Gia cng dnghc pha trn cachi titbngkiuchydao Raster

Pattern.......................................................................................................................................................................................46

PowerMILL3.1UserGuide Contents i


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nhnghangbao .............................................................46

nh nghadao ..............................................................................48nhnghangchydao tinh kiuRaster Pattern................49Lu cng viccabnli ........................................................51

Gia cng cc vng dnghcbngkiuchydao 3D Offset............................................................................................................ 52

nhnghangbao .....................................................................52nhnghadao ...................................................................53nhnghangchydao tinh kiu3D Offset....................53Lu cng viccabnli .......................................................55

Gia cng cc gc bngkiuchydao Projection.............................56Chunbm hnh chi tit ......................................................56Tora cc ngchydao kiuProjection ..............................61Chnhsacc ngchydao kiuProjection .....................66Lu cng viccabnli .......................................................69

M phngcc ngchydao tinh .. ........... .......... ........... ............70Ktlun ............................................................................................72

Gia cng sau gia cng th (Rest) v gia cng tinhcc gc. 73

Tngquan ..........................................................................................73Chunbm hnh chi tit .................................................................75

nhnghadao............................................................75Vng gia cng ............................................................................76

nhnghadao .....................................76Thitlpimgccadao....................................................... 77

nhnghacc chinlcchydao ........................................77Lu cng viccabnli ........................................................79Gia cng sau gia cng Th (Rest ).....................................................80

nhnghadao ......................................80nhnghangchydao ................................80n cc ngchydao .............................................................. 83

Gia cng bn tinh ...............................................................................85

Chunbchi titgia cng bn tinh ........................85nhnghadao .............................................................................. 85Xc nhdung sai v lngdcho gia cng tinh .......... .........85nhnghangchydao kiuRaster ..........................................86

ngchydao tinh .....................................................................88ngchydao kiuRaster Patern...............................................................89

nhnghadao ......................................................................89Xc nhdung sai v lngdcho gia cng tinh .......... .........89Tocc ngbao kiushallow...............................................89Chnhsangbao ...........................................................91nhnghang chydao kiuRaster .........................................92

ii Index PowerMILL3.1UserGuide


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Gia cng Sau gia cng tinh....................................................................................................... 95

To ng bao ..................................................95Chnh sa ng bao .........................................................97Gia cng theo kiu chy dao 3D Offset...............................99

Gia cng tinh cc gc....................................................................101

Xc lp li ng bao ............................................................101nh ngha ng chy dao tinh gia cng gc ...................102

Quan st li qu trnh gia cng .......................................................105Gia cng theo kiu 3DOffset..........................................................106

Phc tho ng bao ............................................................. 106Phc tho kiu chy dao.........................................................107nh ngha ng chy dao kiu Offset ................................109

Gia cng vng lm ln th 2.................................................110M phng cc kt qu.............................................................112Kt lun ..........................................................................................116

PowerMILL3.1UserGuide Contents iii


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S tay s dng

Gii thiu Cc d liu c cung cp trong cun sch ny a racc u im ni bt ca phn mm PowerMill.Cc vd c a ra phc tp hn cc v d trong cunGetting Started , n cho php bn s dng cc cngc ha 1 cch linh hot trong vic to ra ccng chy dao th v tinh i vi tng dng bmt c th ca chi tit .

Cnh boPhn mm ch thc s c hiu qu khi bn bit rs hot ng ca my cng c v la chn ch ctph hp vi cng vic ang tin hnh .Nu bn chabit g v hot ng ca my cng c , bn nn hi kin ca nhng ng nghip hiu r v vaans nyhoc tm kim li khuyn t ni cung cp my chobn .Thng s ca my s dng trong cc v d cxc nh bi cc nt lnh v la chn trongPowerMill ch minh ha cho s hot ng camy . Trong trng hp tng qut cc gi tr cla chn sn ny khng ph hp vi ch ct cacc my iu khin s .Nu bn mun my ph hpvi bt k chi tit no c la chn ,bn nnxem xt cn thn v hiu chnh li cc thng s m bo iu kin ct c an ton. .

PowerMILL3.1UserGuide UserGuide 1


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PowerMILL3.1UserGuide MachiningaChainsaw 3

Qa trnh gia cng chi titChainsaw

Tng quanV d ny cho php quan st qu trnh gia cng cc hc trnkhun ca v my Chainsaw .Trong cun Getting Started trong cc v d u s dng cc gi tr mc nh v s lngcc thao tc tng i t v qu trnh ci t n gin .Ccv d trong cun sch ny phc tp hn ,i hoi phi thitlp cc thng s cng ngh cho tng b mt trn chi tit to ra cc ng chy dao th v tinh ph hp.

Mt cch tng qut Cc ng chy dao c to ra nh sau :

1. Gia cng th .

Gia cng th vi ton b cc vng cn gia cng . Gia cng sau gia cng th (RestRoughing) gimti mc ti thiu cc bc to ra do gia cng th v ct i cc

phn khi gia cng th li do con dao qua ln


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4 MachiningaChainsaw PowerMILL3.1UserGuide

2. Gia cng tinh

G ia cng cc b mt dc bng kiu chydaoConstantZ.

Gia cng cc bmt pha trn bng kiu chy daoRasterPattern..

Gia cng cc vng hc bng k iu chy dao RasterPattern.

Gia cng cc vng hc bng k iu chy dao 3DOffset.

Gia cng cc gc bng kiu chy dao Projection

Qa trnh thao tc to lp cc ng chy dao nn s

dng thanh cng Viewtoolbarkt hp vi s dng chut xoay nh qu cu iu khin hng nhn ca chi tit.Cch s dng cc cng c ny c th tham kho trongcun "Getting Started".


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Chun b chi titu tin hy khi ng PowerMILL v nhp m hnhchi tit bng cch la chn Examplestrn thc nFile v la chn chainsaw.ige trn hp thoiOpenExample.

Thay i gc nhn bng cch kch vo nt ISO

,Thay i s hin th ca chi tit bng cch s

dng nt Shaded hoc nt Wireframe ,

Chi tit c la chn s hin th nh sau.

nh ngha phi1. Kch vo nt Block hin th hp thoi:


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2. Kim tra :

DefinedByLa chnMin/MaxLimits.

Trn vngEstimateLimits Expansiont li l 0v Typel Model.

n vo nt Calculate nh ngha hnhkhi bao quanh chi tit ..

3. Thay i gii hn ca phi theo phng Z : MinZl-80v MaxZl5.Dch chuyn con tt thay i trongsut ca phi ..

4. Kch vo Accept ng hp thoi li

5. T thanh cng cViewla chn ResizetoFit

nt . a chi tit v chnh gia mn hnh ha .

hnh dung chi tit d dng hn bn c th a n vdng m hnh shaded. Khi bn kim tra li s lachn Draw- Model-Options-ShadeInside


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nh ngha daoBn cn phi nh ngha con dao .Con dao cn thit gia cng th l loi dao EndMill c ng knh 20mm

l. to ra con dao , bn c th nh ngha bng cch s

dng thanh cng cToolHoc c th nh ngha ttrn ca sExplorer.Nhng trc ht bn phi to ra 1con dao mi trn ca s Explorer.

1. Kch vo nt Tool pha trn thanh cng c hin th thanh cng c Tool pha di ca ca

s ha PowerMILL

2. Kch vo mi tn trn ntCreateTool

ca thanh cng cTool hin thdanh sch cc con dao m ban cn to..


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3. La chnEndMill ft danh sch cc con dao va xuthin.

Hp thoiEndMillTools c hinth.

4.Nhp voNamelEndMill20vDiameterl20.Khi ny nn s dng phmTab.TheLength chiu di con dao s t ng tnh ton vcp nhp l100(Theo mc nh caPowerMILLchiu di ca con dao s c tnh

bng 5 ln ng knh ca n, nhng bn c ththay i gi tr ny ).Trn ToolStatusHin thValidtc l con dao bn va to ra c chp nhn,kch voAccept.

5. Nu bn kch vo bn tri catrn ca sExplorer ,bn s thy con daom bn va to ra.


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Xc nh chiu cao dch chuyn nhanhChiu cao SafeZandStartZca con dao c nhngha bng cch s dng ntRapidMoveHeights

.Chiu cao tng thm theo phng Z c nhp vocc vng incrementalv cc gi tr ny s c hiuchnh theo h ta tuyt i vng absolute.

1. Kch vo nt RapidMoveHeights .

Hp thoi RapidMoveHeightsS dc hin th nh sau :

2.

Kch voResettoSafeHeights.La chnny s t ng tnh ton chiu cao ca cn daotheo kch thc ln nht ca phi v lngtng thm m bo an ton .

3. Trong v d ny , kiu dch chuyn nhanh

RapidMoveType c la chn l Skimvi chiu cao SafeZv startZu bng2


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Kch vo nt Accept ng hp thoi li .

Chiu cao dch chuyn nhanh catrc Z theo mc nh .

Khi thay i theo kiu Skim ,chiu cao dch chuyn nhanh catrc Z gim i ng k .


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Xc dnh im gc ca daoim bt u v kt thc ca qu trnh gia cng c xc nh nhTool Datum.

1. Kch vo nt ToolDatum .

2. Kch vo nt ResettoBlockCentre xcnh cc ta theo trc X v Y ca dao trngvi ta tm phi .Ta ca dao theo trc Zs c xc nh ng bng chiu cao an tontheo trc Z.(SafeZ.)

3. Kch voAccept ng hp thoi li .

nh ngha cc tc cn thit .1. Cc tc cn phi thit lp s c hin th sau

khi kch vo nt FeedRates hp thoi sc hin th nh sau :

2.Nhp voRapidl8000,Plungel250,Cuttingl1500vSpindleSpeed l8000.Sau kch voAccept.


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nh ngha chin lc chy dao .Cc chin lc gia cng th c la chn bng nt AreaClearance

Toolpaths .

PowerMILL'snh ngha cc lpphoi cti theo chiucao ca phi .Lp ct l giao ca mt phng theo chiucao Z vi m hnh chi tit .Cc ng chy dao c tora da trn cc lp ct ny .

1. Kch vo nt Area Clearance

Toolpaths hin th hp thoi AreaClearance Toolpaths.

2. u tin bn phi nh ngha chiu cao ca tng lp ct theotrc Z . Kch vo nt ZHeights (V tr ca n bn taytri ,


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gc pha trn ca hp thoiAreaClearance).Hp thoi s hinth nh sau :

3. La chn mc DefinedBylStepdownvnhp gi tr ca bc ct (stepdown)bng 10,Kch vo nt Calculate tnh ton ta cclp ct theo chiu cao Z .Sau kch vo ntClose ng hp thoi li .

Cc lp ct theo phng Zc v ra c muxanh l cy .N s c hin th nh sau :

4. Lp ct cui cng c ta -80,n khng phthuc vo chi tit v khngnhn c bt cthng bo no v ng chy dao .V vy cn

phi xa n i bng cch la chn Delete- ZHeights-ByValue.


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5. Khi ny hp thoi TypeValueofZHeighttoDeletes c hin th .Nhp gi tr -80v

kch vo chp nhn gi tr va la chn .

6. Khi ny hp thoi AreaClearanceToolpathvn cn dc hin th.


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7. dm bo lng d cho cc bc gia cng tip theo ,ccgi tr ban u c la chn l :

Stepover-10

Tolerance-0.1

Thickness-1.0

PocketMachine-Checked

ProfileOutside-Unchecked

LeadInMoves-Type-Ramp

LeadInMoves-ApproachOutside-

Checked

SelecttheLeadInMoves-OptionsbuttontodisplaytheRampOptionsdialog

8. Tip tc la chn cc gi tr ban u :

MaxZigAngle-10

Follow-Profile

RampLength-Finite-Checked

RampLength-Length-3

ZagAngle-Independent-Unchecked


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Kch vo nt Accept chp nhn cc gi tr va la chn, ng thi ng hp thoi li .

9. Hp thoi AreaClearanceToolpathvnang c hin th .Kch vo nt Apply.

PowerMILLS x l cc ng chy dao ,thng bo s xut hin trn statusbar,Thng bo ny cho bit qu trnh tnh ton vx l cc ng chy dao .

Kch vo Accept ng hp thoi li .

10. c th nhn thy y cc thng tin cang chy dao trn mn hnh ha , t Drawtrn thc n ,la chn Undraw All.Ton b

cc ng chy dao s hin thi nh sau :

Cc mu sc khc nhau biu th cc kiu dch

chuyn dao khc nhau .


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11.Kch vo nt bn tri ca trn ca sExplorer,Bn s thy ng chy dao va tora.

12.ng chy dao va to ra s t ng c t t l"1".Bn c th nhn thy n l ng chy daogia cng th v n c biu tng .

13.Thay itn ng chy dao mang y ngha ca n .Thay i tn ca ng chy daobng cch kch vo 1trn ca s Explorer

.Khi pha sau 1s xut hin nnmu xanh .Kch vo 1mt ln na .Pha sau 1s xut hin nn mu trng di dnghp thoi .Khi ny nhp tn mi ca ng chydao l 1Roughing v n voenter chp nhn s thay i ny .

14.Bn c th kch vo bong n chunigia 2 ch v , iu ny xc dnhng chy dao c c hin th trn mn hnh ha hay khng .


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Lu cng vic ca bn li .Vi mt tng tt v ng chy dao bn c th l u nli kt hp vi cc d liu khc , hoc bn c thkhng lu c dc nguyn mu m hnh cha cx l.

1. T thc n Filela chn SaveProjectAs.

2. T hp thoi SaveProjectAs, la chn thmc thch hp lu file.t tn ca file lChainsawExample v kch vo OK.

3. pha trn ca ca s PowerMILLs hin thtn ca chi tit v t ca project.

4. Th mc mic to ra c tn lChainsawExample,n bao gm cc files.Khng c chnh sa cc file ny nu bnkhng mun cc d kin b hng.


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nh ngha chin lc chy dao sau gia cngth.

tin hnh gia cngtinh chi tit , trc ht bn cnphi loi b nhng phn tha trn phi qu ln do giacng th li vi mc chc th nh sau:

Loi b cc bc do dng c ct to ra .

Loi b cc phn vt liu khng ct ht khi giacng th do con dao qu ln .

Gim bt lng d trn chi tit .

tin hnh gia cng sau gia cng th (restroughing), bn

cn phi nh ngha 1 con dao mi v nh ngha chiu caoc cng thm vo theo trc Z , khi tnh ton ng chydao .

DaoNgay by gi bn c th to lp 1 con dao mi , con daomi lkiu dao end mill c ng knh 20mm .Bn cth nh ngha con dao nh thanh cng c Tool phadi ca s PowerMILL.

1. Kch vo Trn nt CreateTool ca

thanh cng cTool hin th danh sch cccon dao cn to .La chn EndMill tdanh sch va xut hin .Hp thoi EndMillTools c hin th .


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2.Nhp vo NamelEndMill10v Diameterl10. tin li khi nhp s liu c th s dngphm Tab.Chiu di ca con dao (Length)

s c t ng tnh ton v cp nhp l 50.Trn Tool Statushin th Valid.Kch voAccept.

3. Trn ca s Explorer,Bn s thy con dao vac to ra .


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To ng chy dao sau gia cng th (Rest Roughing).

1. Kch vo nt Area Clearance

Toolpaths hin th hp thoiAreaClearance Toolpaths.

2. u tin cn phi chnh sa chiu cao lp ct

theo trc Z .Kch vo nt ZHeights (Vtr pha trn gc bn tri ca hp thoi AreaClearance).Hp thoi s hin th nh sau :

3. Thay i trn DefinedBybngIntermediateV nhp gi tr 1 vo hp thoi , Sau kch vo ntCalculate.PowerMill s nhp thm cc gi tr trung bnhvo gia cc gi tr trc . Kch vo nt Close nghp thoi li .


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4. Trn hp thoi AreaClearancenh du vo Reference,vn vo nt la chn 1Rounghing lm ng dn .

5.Nu 1Roughingkhng xut hin , th cn phi kivhs hotng chy dao bng cch kch vo nt trn ca s Explorer. chuyn i sang ,

Khi pha sau 1Roughing"s xut hin ">"v n tr nnm hn "1Roughing".

6. Kch vo nt Apply tnh ton ng chy dao .

7. Kch vo nt Accept ng hp thoi li .


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8. Bn s nhn thy rt r rng cc ng chy dao lien kt vinhau .Kch chut phi vo to hin th thc nca ng chy dao .La chn DrawLinks loi bs lachn .Quay tr li la chn DrawLeads.


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9. Tn ca ng chy dao c t l 2RestRoughing.

Lu cng vic ca bn liBn va to ra 1 ng chy dao khc v bn cn philu n li ?

1. Kch vo ntSavethePowerMILLProject .


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M phng chin lc chy dao . m phng chin lc chy dao th v chinlc chy dao sau th ta s dng thanh cng cViewMill.

1. Kch vo nt RaiseViewMillToolbar

hin th thanh cng cViewMill.

2. Kch vo ntToggleViewMillWindow

kch hot ViewMill.Khi ny trn ca s ha , phi s c hin th .

3. chc chn ng chy dao khi gia cng thl ng chy dao c la chn u tin ,kch vo biu tng ca 1Roughing Trnca s Explorer.Khi n s tr nn m hnv pha sau xut hin ">".


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3. bt u qu trnh m phng , kch vo nt

Start/RestartSimulation .

5. By gi bn c th thy c s hot ng cang chy dao th m bn va to ra, quanst s hot ng ca ng chy dao sau gia cngth (Rest Rounghing ), bn cn phi kch p vobiu tng pha trc ca 2RestRoughingtrn ca s explorer.


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6. tip tc qu trnh m phng , kch vo nt


7. Kch vo nt ToggleViewMillSimulation quay li mn hnh ha ca PowerMill

trc vi cc ng chy dao c tora .


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nh ngha chin lc gia cng tinh .Trc khi tin hnh gia cng tinh chi tit , bn cnphi bit s khc nhau gia cc chin lc gia cngtinh la chn chin lc gia cng tinh ph hp vichi tit .

Nguyn tc chung khi gia cng tinh l :

Vi cc vng gia cng dng phng -S dng chinlc chy dao RasterPatternFinishing

.

Vi cc vng gia cng dng hc ng - s dng

chin lc chy dao eConstantZFinishing

.

Vi vng gia cng dng hc -S dng chin lc chy

dao RasterPatternFinishing hoc 3DOffsetFinishing

.

Khi gia cng cc gcS dng chin lc chy dao Corner

Finishing .

Khi vng gia cng l 1 phn ca hnh tr -S dng

chin lc chy dao RotaryFinishing .

i vi cc vng kh gia cng hoc jcc vng cn gia cng

bt i -S dng chin lc chy dao ProjectionFinishing .

Khi gia cng c th phi s dng rt nhiu chin lcchy dao , tng ng vi tng b mt ca chi tit . thc hin c iu ny phi s dng Boundaries xc nh c th tng b mt gia cng ng vi tngchin lc chy dao c th .


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Phn tch chi tit khi gia cng tinh .p dng cc quy tc trn vi chi tit Chainsaw.Bn c th thy c

cc vng c gia cng trn chi tit ng vi tng chin lc chy dao

c th .

Chin lc Projectionvi vng gc kh giacng ..

Chin lc Raster Pattern vi vng mtphng.

Chin lc Raster hoc3D OffsetVi vng dng hc.

Chin lc ConstantZ Machine

vi vng cdng dc ng .


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S dng chin lc chy dao Constant Z gia cng cc mt dc .

gia cng theo chin lc chy dao ny , ta s dngcon dao c mi hnh cu (ballnose)c ng knh 10mm.ng chy dao s chia phn vt liu b ct i trn phithnh cc lp c chiu dy bng nhau theo phng Z(Phng thng ng ), chiu dy cc lp ct ny c thquy nh c .PowerMILLcho php bn to ra ccngbao quanh cc vng gia cng s dng chinlc chy dao ny, ng thi li cc vng khc chocc chin lc gia cng ph h

nh ngha daoBn cn phito ra 1 con dao mi s dng cho chin lc chy dao ny ,

con dao mi l con dao c mi hnh cu (ballnose)c ng knh 10mm . Bnc th nh ngha con dao ny t thanh cng c Tool.

1. Kch vo mi tn nt CreateTooltrn thanh cng cTooleeer hin th dang

sch cc loi dao v la chn BallNosedt danh sch va xut hin . Hp thoi BallNosedTools c hin th :


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2.Nhp vo Namel BallNosed10vDiameterl 10. tin li trong qua trnh thaotc nn s dng phm Tab. Chiu di ca con

dao( Length)s c t ng tnh ton v cpnhp l 50. Trn ToolStatushin th Valid.Kch vo Accept.

nh ngha dung sai .S dng nt FinishParameters nh ngha dung sai cho qutrnh gia cng tinh .

1. Kch vo nt FinishParameters hinth hp thoi.


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2. Thay i Tolerancel0.01v nhp vo Thicknessl0.Sau kch voAccept.

nh ngha cc ng bao kiu ShallowBn c th t ra cc ng bao v s dng n trng sut qu trnh giacng tinh .Trong trng hp ny bn cn phi gii hn bi cc ngdc trn chi tit .ng bao ny c gi l ShallowBoundary. Khi bn cs th to ra cc ng chy dao gia cng cc vng dc trn chitit .

1. Kch v nt Boundary hin th hp

thoi :

Thay i trn Definedbyl Shallow, trndanh sch va xut hin .Trn vng ShallowOptionskim tra Upperl 30 v LowerAnglel0.Kch voApply.


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2. Khi ng chy dao c tnh ton xong , kch v ntAccept ng hp thoi li . ng bao va c t ra shin th nh sau :

3.Nu bn khng nhn thy ng bao 1 cch r rng ,bn c th n cc ng chy dao trn mn hnh ,bng cch khng la chn cc ng chy dao trnca s Explorer na .Nu bn khng mun thy m

hnh ca chi tit na hy kch vo nt Shadedtrn thanh cng cView.

4. Lu ng bao va to ra , bn cs th chnh sang bao ny cho ph hp ving chy daosp thit lp .Kch chut phi vo Toolpathtrnca s explorer hin th hp thoi :


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5. Kch vo CreateBoundaryToolpathtrn thc ntoolpath.Tn ca ng chy dao l (1)s xut hin trn cas explorer.

6. Thay i tn ca ng chy dao mi ny lShallowBoundarytrn cas Explorer.


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nh ngha ng chy dao tinh kiustant Z .

1. To ng chy dao kiu ConstantZbng cch

kch vo nt ConstantZ hin th hpthoi .

2. Trn hp thoi phi chc chn rng :

MinimumStepdownl1;

CornerCorrectionType-None;

PocketMachinenh du;

Direction-Climb;

BoundaryTrimming-KeepOutside.

Phn ng bao c la chn lphn phangoi (Keep Outside)gip cho bn c thgia cng cc vng dc hay ni ng hn l ccvng shallowareas.Kch vo Apply.


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3. Kch vo Accept ng hp thoi ConstantZLi .

4. Thay i tn ca ng chy dao choph hp vi ngha ca n l:3ConstantZ.

Lu cng vic cabn li .

Trc hi to cc ng chy dao mi , bn nn lung chy dao va to li .

1. Kch vo nt SavethePowerMILLProject

.


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Gia cng b mt pha trn bng kiu chydao Pattern.

Vng cn gia cng tip theo l vng pha trn , s dngcon dao end mill. C ng nh 10mm. i vi vng giacng ny , tt nht nn s dng chin lc chy daoPattern Finishing. Chin lc chy dao ny c to ratheo cc ng bao .

nh ngha ng bao .ng bao mi c to ra bng cch chnh sa ng

bao shallow. Ban u bn cn phi xa ng bao tora phc v cho chin lc chy dao ConstantZ.

1. Hp thoi Boundarydialogs xut hin khi kch vont .

2. Kch vo nt Delete xa b ngbao hin hnh .

3. Kch p vo chuyn tiShallowBoundarytrong danh sch cc

ng chy dao trn ca s Explorer.By gin tr thnh ng bao hin hnh v t ng

cp nhp vo ng chy dao .Khng la chnng bao ny (Bng cch kch p vo chuyn ti ShallowBoundarytrong danhsch cc ng chy dao trn ca s Explorer1 ln na ).


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Cc on cn gi li .

Cc on cn xa i .

on cn gi li .

4. Trn hp thoi Boundarykch vo nt Edit

v nhp Modevo DeleteSegment.Cc phn on trn ng bao s hin th vicc du ch thp ch v tr ..


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Ch :Bn c th sdung phm Ctrlvchut tri loib cc on khngcn thit ..

5. La chn cc on cn phi xa b bng cchkch chut trivo n , cc on c la chon s c mu vng.

6. Kch vo Apply.ng bao va dc chnhsa s hin th nh sau :

7. Kch vo Accept dng hp thoiBoundary Editorli .Sau kch vo

Accept ng hp thoi Boundary.


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nh ngha daoKch p chut vo chuyn ti con daoEndMill10trong danh sch cc con dao trn ca sExplorer.By gi n d tr thnh con dao hot nghin thi .

nh ngha ng chy dao theo chinlc Raster Pattern.

1. To ra kiu chy dao RasterPatternbng cch

kch vo nt PatternFinishing

hin th hp thoi .


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2. Thay i Stepoverbng2.5,StylelTwoWay,v sau kch voApply.Kt qu lng chy dao c hin th nh sau :

3. Kch vo Accept ng hp thoi li .

4. Thay i tn ng chy dao l4RasterFlatv khng la chn ng chy dao ny , nkhng hin th trn ca s ha.


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Quan st s lin kt gia cc ng chy daoCc ng chy dao to ra c lin kt vi nhau 1 cchmc nh .Tt nhin cc ng chy dao theo kiu4RasterFlatc tch ra so vi cc kiu ng chydao khc v chng dc lien kt vi nhau .Cc ngchy dao lin kt vi nhau v c hin thi nh sau :

Hin th s lin kt ca ccng chy dao 1 ln na .

1. Hnh dng ca ng chy dao 4RasterFlatchc chn s c hin th nu n c la chnl ng chy dao hin hnh .

2. t con tr ca bn vo ng chy daoraster trn ca s ha v kch chut phi .Thc n Toolpath:4RasterFlat s dchin th .


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3. La chn DrawLinks hin th s lin kt .

By gi bn c th thy s lin kt tng phn ca ng chydao .

4. La chn nt LeadsandLinks v lachn Links hin th hp thoi :


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5. Shortla chnSafeZ v kch vo nt Apply.Khi nys xut hin s lin kt cacc phn ca ng chy dao hin hnh.Bn s quan st thy nh sau :


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6.Nu Shortla chn OnSurfacev kch vo ntApplyLinks.Ban s thy s lin kt c hin th nh sau :

7. quan st d dng hn , bn nn n vo nt

Refresh ( trn thanh cng c View).

Lu cng vic ca bn li .Bn va to ra 1 ng chy dao mi v bn cn philu n li .

1. Kch vo nt SavethePowerMILLProject .


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Gia cng cc khoang , trn chi tit bngchin lc chy dao Raster Pattern.

Vng gia cng tip theo pha di c dng cc hc thngng , s dng con dao endmill c ng knh 10mm v 1trong 2 chin lc chy dao RasterPatternFinishing hoc3DOffsetfinishingbn c th gia cng tho cc vngShallow phadi ca cc khoang ny .

Bn c th quan st kiu gia cng RasterPatternFinishingv3DOffsetFinishing.

ng bao c to ra ging nh ng bao s dng cho chin lc chadao Raster Pattern(cch to lp c trnh by trang 37).

nh ngha ng bao .Vng c gia cng gii hn bi ng bao , cch to rang bao c trnh by trang 37.Nhng trc khito ra ng bao mi bn cn phi xa b ng bao vato ra phc v cho chin lc chay dao raster khi giacng b mt pha trn .

1. Hin th hp thoi Boundarydialogbng cch kch vo nt

v sau kch vo nt delete trn hp thoi , xab ng bao hin hnh .

2. ng bao ShallowBoundarys l dng

bao c kch hot hin hnh .ng chy daos t ng cp nhp ng bao ny ,tuy nhinchng ta khng la chn ng bao ny.

on cn lachn .

Cc on cn b i.

on cn phi la chn .


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3. Trn hp thoi Boundarykch vo nt Editv nhp vo Mode ca hp thoi l

Delete Segment. Cc phn on s chin th vi cc du ch thp nh du .

4. La chn cc phn on cn phi xa i v kchvo nt Apply. Kt qu l ng bao mi sc hin th :


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5. Kch vo nt Accept ng hp thoai BoundaryEditorli .Tip tc n vo nt Acceptng hp thoi Boundaryli .

nh ngha dao chc chn con dao EndMill10l con dao hot ng hin hnh .Bn hy kch p vo biu tng chuyn ti con daoEndMill10 danh sch cc con dao trn ca s Explorer.


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nh ngha ng chy dao theo chinlc Raster Pattern.

1. to ra ng chy dao theo chin lcRasterPattern,hy kch vo nt Pattern

Finishing hin th hp thoi :

2. Thay i Stepoverl0.5,StylelTwoWayJoined,ArcRadiusl0.25v sau n vo Apply.Kt qu l ng chy dao sc hin th nh sau :


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3. Kch vo nt Accept dng hp thoi li .

4. Phn ng chy dao pha di c dng.


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5. Thay i tn ca ng chy dao thnh 5RasterCavityv khng la chn ng chy dao ny na , n n trnmn hnh ha .Khi vic to cc ng chy dao mi sd quan st hn .

Lu cng vic ca bn li .Bn va to ra 1 ng chy dao mi v bn mun lu n li ?


.


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S dng chin lc chy dao 3D Offset giacng cc , khoang , hc trn chi tit .

C th gia cng tinh cc vng hc pha di chi tit bngchin lc chy dao 3DOffsetFinishing. chin lc nyvn s dng con dao end mill c ng knh 10mm.

Kiu chy dao Rastern gin v d tnh ton , nhng ng dn can gm nhiu ng n v sau khi gia cng ht mi ng ny , condao li phi nhc ln , hoc cc ng chy dao lin kt vi nhau theo kiu zigzag.Ni chung kiu dn dao ny t hiu qu khng cao .

Chin lc chy dao 3DOffsetkh tnh ton hn , nhngn ct theo nhng ng cong h v con dao khi ct skhng b nhc ln nhiu ln .

Mt cch tng qut , vi cc vng gia cng dngshallow c th s dng chin lc chy dao Rastervi nhng ng chy dao kp , nhng tt nht nn sdng chin lc chy dao 3DOffset.

nh ngha ng bao .ng bao c nh ngha ging nh ng bao c to ra phc vcho chin lc chy dao Raster khi gia cng cc vng hc .Cch thit lpc trnh by c th trang 37 . Cui cng bn c c ng bao nhsau :


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nh ngha dao chc chn con dao EndMill10l con dao hot ng hin thiBn hy Kch p chut vo vo chuyn ti con daoEndMill10 danh sch cc con dao trn ca s Explorer.

nh ngha ng chy dao tinh theochin lc 3D Offset.1. To ra ng chy dao theo chin lc 3D Offsetbng cch kch

vo nt 3DOffsetFinishing hin th hp thoi :

2. Kch vo nt CalculateStepdownUsing

CuspHeight t ng tnh ton bc ct(Stepover).Sau kch vo Apply tnhton ng chy dao .

3. Kch vo Accept ng hp thoi li .

Kt qu l ng chy dao va to lp shin th nhsau :


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4. Phn ng chy dao pha di c dng :


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5. Thay i tn ca ng chy dao thnh 6OffsetCavityv khng la chn n , n ng chy dao trn mn hnh ha .Tip tc thit lp cc ng chy dao tip theo .

Lu cng vic ca bn li .Bn va to ra 1 ng chy dao mi v bn nn lu nli .


.


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S dng chin lc chy dao Projection gia cng cc gc .

ProjectionFinishingl chin lc chy dao rt hiu qu khi gia cng ccvng kh trn chi tit .Bn cn phi ch n cc vng gia cng s dngchin lc chy dao ny , n dt hiu qu cao nht .

Vng cn phi quan tm .

Chun b m hnh .Vng gc pha trn chi tit cn c gia cng .Bn cn phi o cc kch thc , ci tcc projectionv chn c ca con dao rt k , trc khi tin hnh lp trnh gia cng .

1. Phng to vng gc kh gia cng ca chi tit bng cch s dng ntzoomtrn thanh cng c viewkt hp vi vic xoay qu cu tm chi tit d dng quan st vng cn gia cng hn c ter chi tit dng khung dy hoc dng Solid bng cch kch

vo nt Wireframe hoc nt Shaded trn thanh cng cView.


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2. Con dao m bn la chn gia cng phi c ng knh nhhn ng knh ca gc cn gia cng .o ng knh ca gccn gia cng bng cch s dng cng c Measurev kch vobng Circle.

3. xc nh ng knh ca gc, hy kch vo3 im trn gc cn gia cng .

Point 3

Point 2

Point 1

4. Kt qu l hp thoi Measures hin th ta ca 3

im va c la chn v cc thng s ca ng trn cto lp t 3 im ny .


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5. ng knh ca ng trn c to bi 3 im va la chnl 3.669.V vy d m bo an ton , bn nn chn ng knh condao ball noseddng gia cng bng 3mm.

6. to ng chy dao bn c th s dng LineProjectionFinishing.T hp thoi

Projection Finishing la chn Line.Trn hp thoi , cc thng s m bn aaanf phinhp vo s cc LocationvHeight .


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7. Trn hp thoi Measure. LocationXnhp-113,LocationY nhp183v LocationZnhp-21.

8. Bn cn phi xc dnh chiu cao ca vng cn gia cngHeight.Trn hp thoi Measurementkch vo Linev sdng chut tri kch vo 2 im pha trn v pha di ca gccn gia cng .


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im btu .

im ktthc .

9. Trn hp thoi Measures quan st thy ZAnchor PointvZEndPoint.Hin th hp

thoi LineProjectionFinishing .v nhpcc gi tr HeightStartl 0v HeightEndl-22.


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To cc ng chy dao theo chin lcProjection.Thit lp cc thng s cua ng chy dao trong LineProjectionFinishing.

1. La chn nt ProjectionFinishingV kch vo bng Line.


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2.Nhp cc s liu ban u :

Location:X=-113,Y=183,Z=0.

Direction=Outwards

Pattern-Style=Circular

AzimuthAngle:Start=5,End=180.

Height:Start=0,End=180,Stepover=

Kch vo nt .

JoinUp=La chn ...

OneWay=chn .

Draw=Chn .

Kch vo nt Preview quan st s hin thca cc gi tr va c la chn .


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3. Khi S dng nt Front .Bn c th thy gc mbn quan tm khi s dng PreviewPattern.

Gc cnquan tm

Xem trc kiu gia cng .

4. Kch vo nt Apply tnh ton cc ng

chy dao .Hnh dng ca ng chy dao s phhp vi cc tnh ton ny .Nu bn mun thayi tc tnh ton th c th thay i dung sai

(S dng nt ,thay i t 0.01thnh0.05).

5. Kch vo nt Accept ng hp thoili .Kt qu l ng chy dao s chin th nh sau :


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6. Quan st s lin kt ca cc ng chy dao.Di chuyn con trn ng chy dao projectionv kch chut phi hin th thcn ca ng chy dao .Trn thc n la chn DrawLinksn cc ng lin kt .


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7. Bn s nhn thy ng chy dao hin th nh sau :


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Chnh sa ng chy dao ProjectionBn c ng chy dao kiu LineProjectionFinishingv bn c th thy phn ui cn phi xa i. Trong trng hp ny bn d dng phc tho a gic baoquanhphn ui , nhng li gp kh khn khi gii hnn .Bn c th gii quyt vn d ny bng cch to ra giihn ng bao theo cch sau :

1. Kim tra li chc chn ng chy dao LineProjectionFinishingl ng chy dao c la chn.Kch chut phi vo n trn ca s Explorer vla chn Limittrn hp thoi va hin th ..


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2. Hp thoi s c hin th nh sau :

3. La chn Limittol Polygon,SavelOuterV khng la chn DeleteOriginal.


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4. V phc a gic bao quanh phn ui .

5. Kch vo nt Apply.Sau kch vo ntCancel ng hp thoi li .Bn s thy nhin th nh sau :

6. Bn c th thy phn ui c mu xanh lcy .Gc ca ng chy dao vn c hin thv gii hn ca ng chy dao s c mu vng.Bn s thy n hin th nh sau :


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7. Thay i tn ca 2 ng chy dao chng mang y ngha l 7LineProjectionv LineProjectionNoTail .

Lu cng vic ca bn li .Bn va to ra cc ng chy dao mi v bn cn philu n li .

1. Kch vo nt SavethePowerMILLProject .


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M phng cc ng chy dao tinh .i vi chi tit c gia cng tinh , bn s nhn thy qutrnh m phng cc ng chy dao tinh nu la chn vto lp cc ng chy dao ny ng .Nu bn cha rcch thc m phng , hy xem li tng bc ca Mphng cc ng chy dao th trang 25.

1. Kch vo nt ToggleViewMillWindow

kch hot ViewMill.Ca s ViewMilldng m phng cc ng chy daov ktqu m phng cc ng chy dao th sc hin th .

2. u tin bn phi la chn ng chy daohin hnh bng cch kch p vo biu tngca ng chy dao 3ConstantZtrn ca

s explorer.Bn s thy n tr nn m hn vpha sau xut hin biu tng ">".


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3. tip tc qu trnh m phng , kch vo nt


4. Lp li cc bc 2-3i vi cc ng chy dao4RasterFlat,6OffsetCavityv 8LineProjectionNoTail m phng cc ng chy dao ny .

5. Kch vo nt ExitSimulation kt thc qu trnh

m phng ng thi quay tr li vi mn hnh ha caPowerMILL.


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Kt lunBn va hon thnh qu trnh gia cng chi titchainsaw housingvi cc ng chy dao th vchy dao tinh .i vi cc chi tit c nhiu b mtphc tp hn , bn cn phi la chn cc chin lcchy dao phc tp hn ph hp vi tng b mt cachi tit .


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74RestandCornerFinishing PowerMILL3.1UserGuide

Gia cng sau gia cng th(Rest)v gia cng tinh gc.

Tng quan .Trong v d ny s cung cp cho bn cc thng tin vgia cng sau gia cng th v gia cng tinh cc gc ,ngthi a ra cch s dng chin lc chy dao offset.

Mt cch tng qut , khi gia cng chi tit s c tin hnh theo ccbc sau :

1. Gia cng th .

Gia cng th ton b chi tit (Roughing).

Gia cng h bt cc bc to ra sau khigia cng th tonb chi tit n mc nh nht (Restroughing)

2. Gia cng bn tinh .

Gia cng ton b chi tit bng kiu chy dao Raster.

3. Gia cng tinh .

S dng kiuchy dao Rastervi cc vng cn giacng tinh


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PowerMILL3.1UserGuide RestandCornerFinishing75

Gia cng li cc phn kh ca gc .

S dng chin lc chy dao Offsetgia cng cc vng lm.


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Chun b m hnh .u tin hy khi ng PowerMILLv nhp m hnh chitit bng cch : La chn Examplestrn thc n File hin th hp thoi GetExample, chn chititUserg1.dgkx.trn hp thoi va xut hin . quan st

chi tit d dng hn hy kch vo nt ISOview vchi tit s c hin th nh sau :

nh ngha phi1. Kch vo nt Block hin th hp thoi Bock.

2.Nhp vo Expansionl 0, sau n vont Calculate.Khi ny phi s c gii hn

theo kch thc ln nht Maxca chi tit ,nhng vn m bo kch thc ca phi l nhnht Min.Kch vo nt Accept. chp nhns la chn .


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Gia cng th.Cc ng chy daos c xc nh t cc lpphoi ct i .

nh ngha ng chy dao th . tin hnh gia cng th ,ta s dng con dao EndMill.c ng knh20mm.

1. Kch vo mi tn trn ntCreateTool

trn thanh cng c Tool hin thdanh sch cc con dao m bn cn to lp .La

chn nt EndMill trn danh sch cc condao va xut hin hin th hp thoi EndMillTool.


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2.Nhp vo Namel EndMill20v DiameterL 20. tin li cho qu trnh nhp s liu bn c th sdng phm Tab.Chiu di ca con dao s c t ngtnh ton v cp nhp bng 100.TrnToolStatushin th Valid.Kch vo ntAccept.

Thit lp dim mc ca con dao .1. Kch vo nt ToolDatum hin th ToolDatum.

2. Kch vo nt ResettoBlockCentre.Theo mc nh chiu cao Zca im mc ngbng chiu cao ca phi .Kch vo nt Accept chp nhn s la chn .

nh ngha chin lc chy dao .1.To ra ng chy dao th, bng cch kch

vo nt AreaClearanceToolpaths hin th hp thoi .


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2. Kch vo nt ZHeights.

3. Thay i trn Definedbyl Stepdownv nhp gi tr caStepdownl5. Sau kch vo nt Calculate tnh ton cclp ct , n vo nt Close ng hp thoi li . Kt qu l bns thy nh sau :

4. Kch vo nt Applytrn hp thoi AreaClearance Toolpaths.PowerMILLs tinhnh tnh ton cc ng chy dao .


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5. Thay i tn ca ng chy dao thnh 1Roughingtrnca s explorer.

Lu cng vic ca bn li .Bn va to ra ng chy dao th t mt tng ttv bn cn phi lu cc d liu ca mnh li .

1. T menuFilela chn SaveProjectAs.

2. T hp thoi SaveProjectAsla chn thmc thch hp lu cc d liu .Nhp voFilenamelRestCornerv kch voOK.


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Gia cng sau gia cng th (Rest Roughing) gim ti a chiu cao ca cc bc to ra do gia cng th li , bn cn phi tin hnh gia cng sau gia cng th(RestRough) i vi cc vng c gia cng trn chi tit .S dng con daotipradiusedc ng knh nh tinhnh cng vic ny , con dao s c nhim v lm gimchiu cao ca cc bc do gia cng th li v ct b ccphn vt liu khng ct c khi gia cng th do con daoqu ln .ng chy dao Rest Rounging c tolpda trrn ng chy dao khi gia cng th .

nh ngha dao .

Con dao cn dng restroughingl loi dao TipRadiused v cng knh thn dao l 12mmng knh mi dao l 1mm.Trong thanhcng c Tool pha di ca ca s PowerMILLla chn Tip

Radiused v nhp ng knh thn dao l 12mm,ng knh midao l 1.0mm trn hp thoi va hin th .t tn con dao va to lTip1Rad12.

nh ngha ng chy dao Rest RoughingCh : Nu1Roughing chaxut hin trn vngNameth bn cnphi kch hot n trnca sExplorer.

1. T hp thoi AreaClearanceToolpaths,nh du Enabledtrn vng ReferenceToolpath. Sau kch vo nt Load

SelectedToolpath Name . nhp ngchy dao 1Roughingvo vng Name.

2. Kch vo nt ZHeights.


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3. Thay i trn Definedbyl Intermediatev nhp gitr ca n bng 3.Sau kch vo nt Calculate.Khi nygia 2 lp ct c s c chn thm 3 gi tr ca cc lp ctmi .Hin nhin cc lp ct mi c to ra c chiu dy bngnhau v bng chiu dy cc lp ct c . 4. n vo nt Deletetrn vng Active Toolpath xa ilp ct cui cng v cc lp ct khng cn thit theo phng Z.Kch vo nt Close ng hp thoili .

5. Trn hp thoi AreaClearanceToolpathsnh du vo Approach Outside , con

dao ct i phn tha pha trong cc vng lmca chi tit do gia cng th li .ng thikhng nh du vo ProfileOutside condao khng ct vo phn vt liu g ca ccvng trng .Cc g ny do gia cng th to nn.Cui cng kch vo Apply.

6. ng chy dao RestRoughings c tnh ton .Kch vont Accept ng hp thoi li .


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7. Cc ng chy dao s c hin th rt r rng .Thay i tnca ng chy dao thnh 2RestRough.

8. Kch vo nt RaiseViewMillToolbar Sau kch vo

nt ToggleViewMill Window kch hot ViewMill.

9. La chn ng chy dao 1Roughing

10. bt u qu trnh m phng , kch vo

nt Start/RestartSimulation .


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11.La chn 2RestRoughtrn ca s explorerpane.

12. tip tc qu qu trnh m phng ,Kch vo nt


13.Kch vo nt Toggle ViewMill

Window quay tr li ca s ha ch bnh thng ca PowerMILL.

Hin th cc ng chy dao th . quan st 1 cch c th , r rng cc dng chy dao bn tinh vng chy dao tinh sp c to ra tt nht bn nn ncc ng

chy dao th . n ng chy dao th (bng cch chuyn tti )Bn c th gi nguyn ci nhn v thc th , th dnh chiu cao Z v cc lp ct .

Bn c th la chn 1 trong 2 cch :

1. T thc n Draw trn hp thoi AreaClearance , loi b s la chn ZHeightsv Slices .Sau ng hp thoili .


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2. T hp thoi to lp ra thc th (Vi chiu cao Zc nh ngha t hp thoi AreaClearancev kch vont Z Heights ), khng la chn Draw.Cui cngkch vo nt Accept ng hp thoi li .Thc hin tng t

nh vy vi cc lp ct (n vo nt Slices trn hp thoi

AreaClearance , khng la chn Draw, sau nghp thoi li )


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Gia cng bn tinh .Kiu gia cng bn tinh Rasters c to lp vi tonb chi tit .

Chun b m hnh cho giacng bn tinh . to lp ng chy dao bn tinh , bn cn phi s dng con dao kiutipradiusedc ng knh 12mm v ng knh mi l 1 mm.Lng d li cho gia cng tinh l 0.25mm.

nh ngha daoCon dao s dng cho ng chy dao bn tinh rastergingnh con dao s dng khi gia cng rest roughing.

nh ngha v lng d vdung sai khi gia cng bn tinh .Thay i lng d v dung sai nh sau :

1. Kch vo nt FinishParameters hinth hp thoi :

2. Thay i Tolerancel 0.05v nhp voThicknessl0.25.Sau kchvo Accept.


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nh ngha ng chy dao theo kiuRaster .

1. Kch vo nt PatternFinishing hinthi hp thoi :

2. Kch vo nt CalculateStepoverUsingCuspHeight t ng tnh ton bc ct(Stepover)ph hp vi dung sai .Ga tr ca bc ct (Stepover)c tnh ton l0.441588.Sau chc chn cho s la camnh bn khng nh du vo PerpendicularPassv chn Stylel TwoWayJoined.Kch vo Apply kt thc s la chn .

Cc ng chy dao va to lp s hin th theo cc d liu cla chn .


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3. Kch vo Accept ng hp thoi PatternFinishingli .

4. Vi bt k ng chy dao no xut hin th tnhtrng ca ng bao s khng cn ng theo mcnh na .Trong trng hp nybn hy kch vo

nt Boundary v thay i trong vngDefineByt Sketchsang Block, khi nykiu ng chy dao Raster s c ti sinh .

5. Thay i tn ca ng chy dao l 3Raster.

6. n vo nt SaveProject lu cng vic m bn vatin hnh li .


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Cc ng chy dao tinh .Bn hon thnh vic to lp cc ng chy daoth v ngay by gi bn cn phi to lp cc ngchy dao tinh .Khi to lp cc ng chy dao tinhbn cn phi tun th cc nguyn tc chung sau :

1.S dng kiu chy dao Rastervi cc vng phng , rng .

2.S dng kiu chy dao Restmillingvi cc vng nh , kh giacng .

3.S dng kiu chy dao Cornerfinishingvi cc vng nh ,phng .

4.S dng kiu chy dao OffsetFinishingvi cc vng gia cngcn li .


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Gia cng tinh theo kiu chy dao Raster .Kiu gia cng Raster ph hp gia cng cc vng ca chi tit .

nh ngha daoCon dao s dng gia cng tinh theo kiu chy dao rastercng goingnh con dao s dng cho gia cng bn tinh , v gia cng restroughing, l con dao c kiu tipradiusedvi ng knh l 12mm ,ngknh mi dao l 1mmsv c k hiu l : Tip1Rad12

nh ngha dung sai v lngd cho gia cng tinh .

Thay i lng d nh sau :

1. Kch vo nt FinishParameters hinth hp thoi :

2.Thay iThicknessl 0.Sau kch voAccept.

To lp ng bao kiu ShallowBn cn phi to ng bao xc nh gii hn cavng cn gia cng :

1. Kch vo nt Boundary hin th hpthoi:


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Thay i Definedbyl Shallowt danh sch va xuthin .Trn bng ShallowOptionskim tra li gi tr Upperl 30v LowerAnglel 0.Sau kch voApply.

2. ng bao s c tnh ton ph hp vi ccla chn trn .Kch vo nt Accept nghp thoi li . ng bao s c hin th nhsau :


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Chnh sa ng bao .Vng pha ngoi ca ng bao l vng cn gia cngtinh theo kiu chy dao raster

on cn la chn .

on khng la chn .

on cn la chn .

1. Kch vo nt Boundary hin th hp thoiBoundary. Sau kch vo nt Edit .

2. Thay i Model DeleteSegment.

3. La chn cc phn on quan tm bng cch sdng chut tri . Ccphn on khi c lachn s chuyn sang mu vng .

4. Kch vo Apply.ng bao va c chnhsa s hin th nh sau :


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5. Kch vo Accept ng hp thoi BoundaryLi .ng bao mi s hin th nh sau :

nh ngha ng chydao kiu Raster .Vng phng pha trn ca chi tit rt thch hp vi kiuchy dao Raster . Tt nhin , kiu chy dao ny cng sdng rt hiu qu vi vng dc di t trn xung di cachi tit , Vi cc vng dc trong mt phng XZv mt

phng YZkhi s dng kiu chy dao ny theo 2 hngvung gc vi nhau s h thp cc bc to ra do gia cngti mc thp nht .

1. Kch vo nt PatternFinishing hinth hp thoi :


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2. nh du vo PerpendicularPass.Khi ny ga tr cabcct (Stepover)vn c la chn l 0.441588 (Kchhot bng cch kch vo nt ).Kch vo Apply. p dngcc gi tr c la chn .

ng chy dao s c thit lp theo cc d kin va cla chn .


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3. Kch vo Accept ng hp thoi PatternFinishingli .

4. Thay i tn ca ng chy dao l :4RunOffRaster.

5. Kch vo nt SaveProject cp nhp cng vic bn vatin hnh voproject ca bn .


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Gia cng tinh bngkiu chy dao RestMilling.

ngchy dao rasterc th p dng vi hu ht cc vngcn gia cng trn chi tit .Tuy nhin , chin lc chy daony s dng con dao c ng knh tng i ln nn vicc vng nh , kh gia cng th chin lc ny khng ththc hin c.Chin lc chy dao Rest Milling c th gia cng c

cc vng nh ny .Vng din tch gia cng bng chin lcchy dao ny c nh ngha bing bao kiuRest

To ng bao kiuRest .1. Kch vo nt Boundary hieenr th hp

thoi :

2. Trc khi to lp ng bao kiu Rest bncn phi xa b ng bao hin hnh bng

cch s dng nt Delete .

3. Trn Definedbyla chn RestMaterial.

4. nh ngha im tham chiu ca dao c bngcch kch vo nt ReferenceTool .Khiny hp thoi s c hin th nh sau :


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5. Kch vo nt LoadCurrentTool nhp con dao c ngknh 12mm v ng knh mi dao l 1mm .Sau kch vo ntAccept ng hp thoi ReferenceToolli .

6. By gi , bn cn phi nh ngha 1 con dao mi .Trn thanh cng c Toolla chn Toolv

BallNosed trong danh sch cc con daova xut hin .Nhp ng knh ca dao voDiameterl 8v t tn con dao l Ball8.

7. Kch vo nt Applytrn hp thoi Boundary.PowerMILLs t ng tnh ton ng bao .

8. Sauk hi ng bao c tnh ton xong , kchvo nt Accept ng hp thoi li . ngbao va c to ra s hin th nh sau :


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9. Kch chut phi vo thc n Toolpath trn ca sExplorerv la chn CreateBoundary Toolpath.

10.Thay i tn ca ng bao l 5RestBoundary1.

Chnh sa ng bao .Vng pha ngoi ca ng bao l vng cn phi gia cngtheo chin lc chy dao 3DOffset .Khng c la chncc phn on l ng bao quanh cc vng lm , bi vn gii hn cc vng lm c gia cng theo kiuoffset.

Cc phn on ca ngbao cn la chn .

Cc phn on khngla chn .

1. Kch vo nt Boundary hin th hp thoiBoundaryv sau kch vo nt Edit :


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2. Thay i Model DeleteSegment..Khi ny cc phnon ca ng bao s xut hin vi cc du ch thp hin th vtr .

3. La chn cc phn on pha trong bng cch sdng chut tri .Cc phn on c la chn schuyn sang mu vng .

4. Kch vo nt Accept ng hp thoi BoundaryEditorli .


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Gia cng tinh bng chin lc chy dao3D Offset.

1. To ra ng chy dao kiu Offsetbng cch

kch vo nt 3DOffsetFinishing hinth hp thoi :

2. Kch vo nt CalculateStepoverUsing

CuspHeight t ng tnh ton bcct (Stepover)ph hp vi dung sai .Ga trbc ct tnh c l0.891628 .Kch vo ntApply.

3. Kch vo Accept dng hp thoi li .Ktqu l ng chy dao s hin th nh sau :


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1 phn ca ng chy dao c dng :

4. Thay i tn ca ng chy dao l 6Offset.

5. Khng la chn ng chy dao v s dng nt

SaveProject . lu ng chy dao mbn va to lp li .


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Gia cng tinh theo kiu chy dao Cornerng bao kiu Restv ng chy dao tng ng vi ncho php s dng con dao c mi hnh cu c dng knh8mm . thc hin ng chy dao tinh kiu corner phis dng con dao c ng knh nh hn(con dao c mihnh cu , ng knh 4mm).Ttnhin trc ht bn phibit cch to lp ng chy dao ny .Vi chi tit anggia cng , kt qu gia cng s cao nht khi bn s dngcc chin lc chy dao ph hp vi tng b mt tngng , trong cc chin lc chy dao ny c chin lcchy dao corner .Bn s thy c s a dng v hiu qukhi s dng chin lc chy dao tinh corner.

To lp li ng bao .Vic to lp ng bao c thc hin trn hp thoiBoundary.Hin thi DefinedByang hin thRest.Nu bn khng thay i s la chn ny PowerMILLs t ng tha nhn v tnh ton ng baokiu Rest theogi tr ca con dao hin hnh .Tc l ng bao cui cngc to ra l dng bao theo kiu Rest . Khi s dng kiu chy dao corner bn khng c chn DefinedByl Rest. m phi chn l BlockPowerMILLs t ng tnh ton ng bao vi tt ccc gc tng ng vi con dao ang c la chn hinhnh .

1. Kch vo nt Boundary v la chn nt Delete .Sau nhp vo Definedby l Block.Cui cng kch vont Accept ng hp thoi Boundaryli .


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nh ngha ng chy dao tinh kiu corner1. Kch vo nt Corner hin th hp thoi :

2. Trn Typel Along,OutputlBoth,ThresholdAnglel30.

Bn cng c th la chn vng Outputl Shallow.S khc nhau gia 2 s la chnny nh sau :

Khi la chn BothCc lp ct s thc hin cc vngnng trn chi tit trc .Tuy nhin trong mt s trng hpvi cc b mt phc tp s xut hin s va chm lm hng

phi .


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Khi la chn ShallowLa chn ny s gim ti mcthp nht s va chm lm hng phi .Tt nhin s la chnny s tin hnh cc lp ct cc vng nng trn chi tit saucng .

3. nh ngha im tham chiu ca dao bng cch kch vo

nt ReferenceTool .

4. Kch vo nt LoadCurrentTool nhpcon dao c mi hnh cu , ng knh 8mmvsau kch vo nt Accept ng hp thoiReferenceToolli .

5. Bn cn phi nh ngha 1 con dao mi .Trnthanh cng c Toolla chn Tooltip n l

BallNosed trn danh sch va xut hin ,nhp ng knh con dao (Diameter)l 4vtn ca con dao l Ball4.

6. Sau kch vo Applytrn hp thoiCorner Finishing.PowerMILL s tnh toncc ng chy dao .

7. Khi ng chy dao c tnh ton xong.Kch vo nt Accept ng hp thoi li .ng chy dao s hin th nh sau :


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1phn ca ng chy dao c dng :

8. Thay i tn ca ng chy dao l 7Corner.

9. Khng la chn ng chy dao v s dng nt

SaveProject . lu ng chy dao va tolp vo Project ca bn .


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Kim tra li qu trnh x l . Phn ln cc b mt ca chi tit c gia cng .Phncha gia cng tinh cn li l 2 b mt tch ri nhau : rnhch U v rnh dng cung trn . gia cng 2 bmt ny ,

tt nht bn nn s dng chin lc gia cng 3DOffset.

1. Rnhch U.

2. Rnh dng cung trn .


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Gia cng tinh theo kiu chy dao 3D OffsetBn cn phi s dng chin lc chy dao 3DOffsetgia cng tinh cc vng lm. Trong trng hp ny thay vto ra cc ng bao pha trn ca vng lm (Theo bindng ca vng lm ), chng ta s s dng cc khong chatrng dc theo vng lm .Tt nhin khi gia cng theo kiuoffsetbn cn phi to ra cc ng bao gii hn phm vivng cn gia cng . Cng vic ny s tin hnh vi rnhhnh ch U trc .

Phc tho ng bao .1. T thanh cng c Viewla chn nt XYView

.

2. Bn nn chuyn m hnh sang dng khung dy tin li cho vic thao tc (Bng cch kch

vo nt Wireframe trn thanh cng cView).

3. Kch vo nt Boundary v la chn nt

Delete xa b ng bao hin hnh .Sau Definedbyla chn Sketchv kch

vo nt Sketch hin th hp thoi :


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4. La chn cc im trong vng trng .

5. Kch vo nt CloseSegment .

6. Kch chut phi vo thc n Toolpath trnca s Explorer, to ra cc ng chydao tng ng vi cc dng bao .

7. Thay i tn ca ng chy dao l 8TroughBoundary.

V phc mu .Bn cn phi to ra ng dn .V c bn , ng dn l 1 phnon ko di t u n cui ca vng trng .Sau khi ng dnc to ra di dng mu , bn c thsdng n cho chin lcchy daooffset tin hnh gia cng tinh chi tit .

1. Kch vo nt Pattern hin th thanh cng cPattern.


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2. Kch vo nt CreatePattern to ra 1 mu rng.Bn c th nhn thy mu ny hin th trn ca s explorer.

3. Kch vo nt SketchPattern

Trn thanh cng c Pattern hin th hpthoi :

Ch :Bn phichc chn rngmnh ang thaotc trn mt

phng XY

.

4. tin hnh cng vic 1 cch chnh xc , bn cn phi v phcng dn nh s dng hp thoi BoundarySketcher.5. La chn 2 im trn cc mt phng khc nhau cavngtrng v sau kch vo accept.

6. Thay i tn ca mu l Trough.


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nh ngha ng chy dao kiu Offset1. Kch vo nt 3DOffset hin th hp

thoi :

nh du vo UsePatternv thay i gi trca bc ct (Stepover)bng cch kch vont Calculate StepoverusingCusp

Height . Sau kch vo Apply.

2. PowerMILLs tnh ton cc ng chy daotheo kiu offset .Cng vic tnh ton ny cth mt vi pht .

3. Khi ngchy dao c tnh ton xong.n vo nt Accept ng hp thoi li.ng chy dao va to lp s hin th nhsau :

4. Thay i tn ca ng chy dao l 9OffsetTrough.


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5. Khng la chn ng chy dao v s dng nt SaveProject . lu ng chy dao va to ra vo Project cabn .

Gia cng vng lm tip theo .Bn cn phi tin hnh gia cng vi vng lm tiptheo pha trc , bn di .ng v phc cang bao c v ra 1 cch r dng trong mt phng

XY .

Kch vo nt Boundary v la chn nt Delete

xa b ng bao hin hnh .Trong Definedby

la chn ketch,Sau kch vo nt Sketch .Cc thao tc tip theolm nh hng dn ch ra trang 106.

1. Kch chut phi vo thc n Toolpathtrnca s Explorer to ra cc ng chy daotng ng vi ng bao .

2. Thay i tn ca ng chy dao l: 10Trough2Boundary

3. Khi tin hnh theo cc ch dn c ch ra trang 107 , bn sto c mu cn thit .


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4. To ra kiu gia cng Offsetbmg cch s dng nt 3DOffset .Cc thng tin v cng vic ny c ch r trang109.

5. Cc ng chy dao c tnh ton .

6. Thay i tn ca ng chy dao thnh11OffsetTrough2.

7. Khng la chn ng chy dao v s dng nt SaveProject lu ng chy dao voProject ca bn .


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M phng cc kt qu .1. Kch vo nt RaiseViewMillToolbar

v sau l nt ToggleViewMillWindow

kch hot ViewMill.

2. Nu phi c hin th , ng hn l mhnhca phi sau khi cc ng chy dao trc hot ng .

3. Kch hot ng chy dao 3Rastertrn cas explorer.

4. bt u qu trnh m phng , bn hy kch vo nt



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5. quan st k hiu ng ca ng chy dao tip theo bn cth ph sn ln m hnh va to bng cch kch vo nt PaintBlock .

6. La chn 4RunOffRasterv kch hot ng chy daony .

7. Lp li cc bc t 4-6i vi cc ng chy dao6Offset,7Corner,9OffsetTroughv 11OffsetTrough2 m phng chng .


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8.Nu bn mun dng qu trnh m phng vi m hnh chi tit cmu xanh , hy kch vo nt CleanBlock .

9. Kch vo nt ExitSimulation ktthc qu trnh m phng v quay tr li vimn hnh ha PowerMILLbnh thng .


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Kt lunBn va hon thnh vic lp chng trnh gia cng cho 1chi tit , vi vic s dng cc bin php k thut khi giacng th v gia cng tinh rt a dng .Chi tit va giacng mc kh trung bnh v bn s dng 1 vichin lc chy dao khc nhau gia cng cc b mttng ng , l restmilling,cornersv bn tinhnh nh ngha mu cho kiu gia cng offset.

ban dich userguide_pm 3

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