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7/24/2019 09.Mastercam Phay 3d
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Mc lc
Chng 1: im mnh ca Mastercam X7 trong lp trnh phay mt phc tp...................3Chng 2: Trnh t cc bc thc hin lp trnh gia cng khun mu ............. ............. ............. .62.1 M file mas te rc am v a chi t it vo mi t rng lm vic.....................................6
2.2 La chn kiu my .............................................................................................................7Thit t thuc tnh my: ..........................................................................................................82.3 Lp trnh g ia cng phay .................................................................................................. 10Chng 3: Cc kiu chy dao gia cng th trong Mastercam X7....................................... 123.1 Rough Parallel................................................................................................................ 123.2 Rough Radial.................................................................................................................. 213.3 Rough Project................................................................................................................. 283.4 Rough Flowline............................................................................................................... 343.5 Rough Contour............................................................................................................... 413.6 Rough Pocket.................................................................................................................. 463.7 Rough Restmill............................................................................................................... 53
3.8 Rough Plunge................................................................................................................. 59Chng 4: Cc kiu chy dao gia cng tinh trong Mastercam X7 ............................................ 604.1 Finish Farallel................................................................................................................ 604.2 Finish Parallel steep...................................................................................................... 684.3 Finish Radial.................................................................................................................. 724.4 Finish Project................................................................................................................. 764.5 Finish Flowline............................................................................................................... 824.6 Finish Contour............................................................................................................... 874.7 Finish Shallow................................................................................................................ 924.8 Finish Pencil.................................................................................................................. 964.9 Finish Leftover............................................................................................................ 101
4.10 Finish Scallop............................................................................................................ 1064.11 Finish Blend............................................................................................................... 111Chng 5: Thc hnh lp trnh gia cng khun mu vi Mastercam X7................................ 1175.1 Gia cng khun c v ng h CASIO ......................................................................... 1175.2 Gia cng khun ci v ng h CASIO .......................................................................... 1485.3 Gia cng khun c v my nh k thut s OLYMPUS ...................................... .......... 1695.4 Gia cng khun ci v my nh k thut s OLYMPUS ................................................. 191Chng 6: Tng kt .............................................................................................................. 213Bng ccphm truy cp nng trong mi trng MasterCam X7 ................................... .......... 217
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Li ni u
Cm n bn cm trn tay cun sch ca chng ti, bn c mt la chn ng n
khi mn hc c nhng kin thc cn thit cho cng vic ca mnh, vi mong mun toiu kin cho nhng c nhn cng ty khng c thi gian theo hc ti trung tm AdvanceCad, nhng ti liu c vit bi ging vin ca trung tm bn s hon ton yn tm v cth tip thu hon ton nhng ni dung c trnh by trong ti liu.
y l ti liu nng cao, dnh cho cc bn hc qua phn mm mastercam, c th dnhcho nhngbn t hc, c nghin cu trn mng hc c cc ti liu c bn t cc nhsch v cn thm cc kin thc lin quan n cng vic.
Ni dungchnh ca ti liu tp trung vo phn gia cng cc chi tit mt phc tp, t bitl gia cng khun, thm ch cc ti liu do chng ti bin son cn y hn khi cc bnhc ti cc trung tm khc.
File thc hnh ngi hc vui lng ly trn link gc ca ti liu trn tranyen.com,hoc trndanh mcfile thc hnh ca web.
Mi thc mc, gp hay cc yu cu v ti liu m khch hng cn c th gi cho chngti qua ach mail: [email protected].
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Chng 1: im mnh ca Mastercam X7 trong lp trnh phay mt phc tp
Hin nay vi s h tr ca cng ngh thng tin, h thng CAD/CAM tch hp c pht
trin rt nhanh chng. N to nn s lin thng t qu trnh thit k cho n ch totrong lnh vc c kh. Xu th hin nay cc nh k thut pht trin ch yu l h thng
CAD/CAM tch hp. Nhng phn mm CAD/CAM tch hp ang s dng ph bin hin
nay nh: Mastercam, Edgecam, Solidcam, Delcam, Surfcam, Vercut, Topmold,
Cimatron,Pro/Engenieer v.v
Phn CAM ca MasterCAM rt mnh. Nhiu cng ty Vit Nam v cng ty nc ngoi
la chnphng n l to m hnh 3D trn Solidwork hoc bng phn mm 3D no .
Sau lp trnh gia cng trn MasterCAM. Phng n ny r hn so vi vic mua phn
mm ProE. Solidwork l phn mm CAD thuc hng trung cao v n thit k rt tt.
Mt imtin li na m mastercam hn hn cc phn mm gia cng khc l n c th
gia cng m hnh 3D dng surface ch khng cn solid v vy ta c th lp trnh vi m
hnh cthit k trn bt c phn mm no khc mt cch d dng.
Hn na Mastercam tng thch vi hu nh tt c cc dng my CNC hin c trn thtrng ch khng ch ring cho h FANUC. Mastercam X7 c th lp trnh nhiu my
gia cng, nhiu nguyn cng trn cng mt file v gia cng nhiu trc.
Mastercam l phn mm CAD/CAM tch hp c s dng rng ri chu u v trn
th gii, ng thi cng c s dng rng ri Vit Nam. Mastercam c kh nng thit
k v lp chng trnh iu khin cc trung tm gia cng CNC 5 trc, 4 trc, 3 trc, c
th lp trnh gia cng tia la in ct dy, tin, phay, khoan Mastercam c nhgi l mt trong nhng phn bn chy nht th gii trong vi nm gn y.
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c pht trin bi CNC Software, Inc, Mastercam l phn mm CAD / CAM cho phay
v tin t 2 5 trc, ct dy EDM 2 v 4 trc ,gia cng 2D v 3D, m hnh hab mt v
khi rn,ct v chm khc ngh thut. Phn mm Mastercam X7 l phn mm gia cng
mnh m nht n c nhiu tnh nng mi quan trng, bao gm
c cc snphm Mill-Turn.
Mastercam Blade Expertl mt ng dng ty chnh thit k to ra cc ng chy
dao ct cc phn phc tp. Blade Expert s ct cnh bm, cnh qut, tua bin, v nhiu
hn na. Cc ng chy dao u tin loi b cc vt liu t gia cnh. Tip theo, n
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hon thnh cc cnh v bo trn cnh, v sau kt thc vi mt phng. Blade Expert c
mt giao din ngi dng r rng, chnh xc c m phng theo tt c cc ng chy
dao 5 trc hin i nht. Kt qu cui cng l mt ng chy dao trn tru, kt thc
chnh xc, v gim ng k thi gian gia cng trong chng trnh
Mastercam Mill-TurnSn phm Mill-Turn lm cho cng vic gia cng trn trung tm
tin cng sut cao, cc trung tm gia cng y tnh nng tr nn n gin v d dng
hn bao gi ht. Mastercam Mill-Turn sp xp hp l qu trnh lp trnh vi ccthit lp
cng vic thng minh c ph hp vi my gia cng chnh xc m bn c. Lachn
mt phnglm vic thng minh lm cho vic la chn cc trc v trc dao thchhp trnmi phn chng trnh ca bn tr nn d dng thng qua ng chy dao tin v phay
ca MasterCam. Ngoi ra, Mastercam X7 cn rt nhiu im mi nh kh nngphn tch
qu trnh gia cng tt hn, tng tc chy dao, chc nng m phng mnh m hn
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Chng 2: Trnh t cc bc thc hin lp trnh gia cng khun mu
a chi tit gia cng vo mi trng Mastercam
La chn kiu my dng gia cng chi tit.
Chn kiu chy dao gia cng chi tit
Thit t cc thng s cn thit nh: loi dao ct, ch ct, phi, mt phng an
ton, mt phng li dao, ti ngui
M phng kim tra qu trnh gia cng trn Mastercam
Xut chng trnh NC cho my gia cng.
2.1 M file mastercam v a chi ti t vo mi tr ng lm vic
M mt file Mastercam:
T menu Mastercam file Open
Trong hp thoi Open , la chn kiu tp chun ca Mastercam.
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Chn Open
a mt file Cad khc vo mi trng Mastercam:
+ T menu Mastercam File Open.
+ Trong hp thoi Open, chn dng file CAD mun nhp vo.+ Thit t cc tham s nhp trong mc Options
+ Chn OK
a thmmt file khc vo chung vi file ang dng:
+ T menu Mastercam File File Merge/Pattern.
+ Trong hp thoi c m, la chn kiu file, V chn tp cn nhp.
+ S dng ty chn trn thanh trng thi Merge/Pattern la chn mt im c s
cho v tr t d liu, v nh ngha t l, gc quay, trc i xng (x,y hoc z)
+ Chn Apply.
+ n ESC kt thc lnh.
2.2 La chn kiu my
La chn Machine type ti y bn c th la chn mt my thch hp vi my gia
cng ti cng ty.
Sau khi bn chn mt kiu my, my s c qun l trn cy qun l Toolpath
Manager
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Thit tthuc tnh my:
Trn cy qun l Toolpath manager bn c th hin th cc kiu thuc tnh mybng
cch ko dn cc mc thuc tnh.
Files:
S dng th file ny xem v nh ngha cc tn tp v cc d liu ngdng c
dng cho cc thao tc trong nhm my la chn.
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Hp thoi
Machine
Group
Properties
c hinth nh di
y.
Tool Setting:
S dng th ny iu khin file NC, b dao, tc chy dao, tc trc ch nh, lm
mt, v cc tham s ng dng c khc, bao gm c vt liu lachn.
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Th Stock setup:
Th ny cung cp cho bn cc phng php nh ngha phi.
2.3 Lp trnh g ia cng phay
Vo Toolpaths s xut hin menu cha cc kiu chy dao. Ty tng trng hp m chnkiu chy dao ph hp lp trnh.
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Chng 3: Cc kiu chy dao gia cng th trong Mastercam X7
3.1 Rough Parallel
To ng chy dao song song theo nhng mt c chn v cho php gia cng tng
lp gia cng th b mt
Cc bc thc hin nh sau:
Kch chnmenu Toolpath > Surface Rough> Parallel Toolpath
Lc ny xut hin cc ty chn sau:
Boss: Khai bo ny vi chi tit dng li iu khin dao nhc ln theo trc Z.
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Cavity: Khai bo ny vi chi tit dng lm dao di chuyn theo kiu Zigzag v cho
php ct theo c 2 chiu dng v m theo trc Z (phng php ny thng dng
nht).
Undefined:La chn ny trong trng hp khngxc nh c mt trong hai dng
trn, phn mm s t tnh ton ni suy ng chy dao.Chn mt gia cng > Enter. Lc ny xut hin bng ty chn nh s au :
Drive: chn mt gia cng
Check: chn mt khng gia cng
Containment: chn ng bao gii hn vng gia cng
Approximate starting point: chn im bt u gia cng.
Sau khi chng ta chn Enter.
Xut hin hp thai Surface Rough Parallel:
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Toolpathparameters: Bng khai bo dao v ch ct
Tool name: Loi dao
Tool #: S hiu dao
Len offset: v tr b tr chiu di dao
Dia offset: v tr b tr ng knh dao
Head #: S hiu u dao
Coolant: Chn vo y m nc ti ngui
Spindle direction: Chiu quay trc chnh
Spindle speed: Vn tc ct vng/pht
Feed rate: Lng tin dao ngang
Plunge rate: Lng tin dao n xung theo trc Z
Chn qua th Surface parameters
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Clearance: Mt phng an ton
Retract: Mt phng li dao
Feed plane: Mt phng dao chy theo ch ct
Tip Comp: chn tip l tnh ton ni suy theo nh ca dao
Stock to leave on drive: cha lng d ti cc mt gia cng
Stock to leave on check: dao cch cc mt khng gia cng
Tool containment: cho php khoanh vng gia cng
+ Inside: offset vo pha trong ng bao
+ Center: gii hn theo tm ng bao
+ Outside: offset ra pha ngoi ng bao
Chn qua th Rough parallel parameters
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Total tolerance: Dung dai cho php
Cutting method: kiu qut ca dao.C 2 phng php l zigzag v one way
Max stepdown: Chiu su ln nht mi lp ct
Max stepover: Lng tin ngang ln nht
Machining angle: gc nghing ca ng chy dao
Plunge control: Phng php ny c th ty chn 1 trong 3 cch gia cng .
+ Allow mutiple plungles along cut: Cho php ct nhiu bc.
+ Cut from one side: Ct dc theo mt bn ca mt mt.
+ Cut from both side: Ct dc theo hai bn ca mt
Prompt for starting point: chn im xung daobt u qu trnh giacng
Allow negative Z motion along surface: Cho php di chuyn theo phng Z- khi ct
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Allow positive Z motion along surface: Cho php di chuyn theo phng Z+ khi
ct
Cut depths:
Nhm thng s trong hp thai ny c dng xc nh chiu su ct ca dao
trong sut qu trnh gia cng th, chiu su ct c th c mc nh theo ch tuyt
i hay tng i. Hp thai xut hin bn di:
Absolute:Ch tuyt i
Minimum depth: im cao nht m dao c th n ht vt liu
Maximum depth: im thp nht m dao c th n ht vt liu
Incremental: Ch tng i
Adjustment to top cut: c xc nh bi khong cch nh nht gia chiu su ct so
vi mt cao nht ch chi tit gia cng
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Adjustment to other cuts: c xc nh bi khong cch ln nht ca chiu su
ngay bin dng gia cng c mc nh
Gap settings.
Ci t ch v khang trng gia cc b mt gia cng . Nhng khong trng l do
mt khng kn hay do mt b gy, chng to ra bi:+ Nhng mt lin tip nhau c ni khng chnh xc
+ Ti vng b ct, ni nhng khang trng c to ra
+ Do s di chuyn
Kch thc ca khe h c ch nh theo 2 cch:
+ Distance: khong cch khe h c th
+ % of stepover: khong cch theo phn trm gi tr ca mi bc ngang
Motion < Gap size: Mastercam cung cp 4 lai gia cng cho khang trng nh,
nhng mu ny xut hin:
+ Direct: Trong lnh Direct dao di chuyn thng trn khang trng t v tr ny n v
tr kia. Trong lnh khc th dao c th di chuyn im cui ca ng gia cng trn mt
phng ny n im bt u ca ng gia cng trn mt kia (hai mt phi k cn
nhau).
+ Broken: Trong lnh Broken dao di chuyn trn khong trng ca cung c chia,
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theo trc Z v trc khc X hoc Y.
+ Smooth: Trong lnh Smooth ng gia cng di chuyn trn khong trng theo mt
tip tuyn. N thng c s dng vi tc cao ca my
+ Following surface: Trong lnh ny ng gia cng di chuyn trn khong trng theo
mt nghing ni gia hai mt k nhau
Nu dao di chuyn ln hn kch thc khang trng cho, th h thng s thm vo
s rt dao. ng gia cng cho nhng khang trng ln th lm theo 5 bc sau:
+ Gia cng trn mt t im u n im cui theo hng xc nh.
+ Rt dao nhanh.
+ Di chuyn nhanh trn khang trng ca im u, im cui ca mt th hai.
+ n xung t im bt u ca mt th hai.
+ Gia cng mt th hai theo hng nh
Sau khi khai bo xong nhn OK phn mm tnh ton ng chy dao.
Vo backplot xem ng chy dao
Nhn ntplay bt u
Kt qu ng chy dao nh hnh di y:
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TRN YN GROUP
Mun mphng xem qu trnh gia cng ta vo Verify
Nhn play v xem gia cng, kt qu nh hnh bn di:
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3.2 Rough Radial
Gia cng th b mt chy dao theo hng knh.
Chi tit gia cng nh sau:
Kch chn menu Toolpath > Surface Rough > Radial Toolpath.
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Boss: Khai bo ny vi chi tit dng li iu khin dao nhc ln theo trc Z.
Cavity: Khai bo ny vi chi tit dng lm dao di chuyn theo kiu Zigzag v cho
php ct theo c 2 chiu dng v m theo trc Z (phng php ny thng dng
nht).
Undefined:La chn ny trong trng hp khngxc nh c mt tronghai dng
trn, phnmm s t tnh ton ni suy ng chy dao.
Chn mtgia cng > Enter
Lc ny xut hin bng ty chn nh sau:
http://www.advance-cad.com/http://www.advance-cad.com/http://www.advance-cad.com/http://www.advance-cad.com/http://www.advance-cad.com/http://www.advance-cad.com/http://www.advance-cad.com/http://www.advance-cad.com/http://www.advance-cad.com/http://www.advance-cad.com/http://www.advance-cad.com/http://www.advance-cad.com/7/24/2019 09.Mastercam Phay 3d
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Drive: chn mt gia cng
Check: chn mt khng gia cng
Containment: chn ng bao gii hn vng gia cng
Approximate starting point: chn im bt u gia cng.
Sau khi chng ta chn Enter.
Phn mms hi tm Enter rotation point: chn im ch nh tm xoay ca cc
ng ct chng ta chn ngay gc ta
Xut hin hp tha Toolpath parameter.
Nhn nt chut phi vo th vin chn dao gia cng l dao phay ngn D=20
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TRN YN GROUP
Bng ny ta khai bo cc thng s cho dng c ct cc mu vng
Chn quabngsurface parameters
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Bng ny ta cn khai bo cc mt phng an ton, mt phng li dao, mt phng dao tin
theo ch ct v khai bo lng d cn li sau gia cng.
Chn quabng Rough radial parameters
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Total tolerance: Dung dai cho php
Cutting method: kiu qut ca dao.C 2 phng php l zigzag v one way
Max angle increment: Gc tng ln nht ca ng chy dao
Start angle: Gc bt u ca qu trnh gia cng
Sweep angle: Gc cui ca qu trnh gia cng
Start offset distance: khong cch t ng chy dao m tm
Start point: Chn im xung dao bt u qu trnh gia cng
+ Start inside: xung dao pha trong chi tit (gn tm)
+ Start outside: xung dao pha ngoi chi tit (xa tm)
Allow multiple plunges along cut: cho php dao ct theo trc Z
Cut from one side: ch ct mt pha
Cut from both side: ct c hai pha
Sau khi khai bo xong nhn ok my tnh ton ng chy dao
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TRN YN GROUP
Vo Backblot xem m phng ng chy dao
Vo Verify xem m phng qu trnh gia cng chi tit
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3.3 Rough Project
Chiu ng chy dao ln mt mt phng hoc cong bt k. V d chiu ng chy dao
gia cng ch CAD CAM CNC ln bt cong nh hnh
Kch chnmenu Toolpath > Surface Rough > Project Toolpath.
Chn b mt gia cng l mt cong nh hnh
Lc ny xut hin cc ty chn sau:
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Boss: Khai bo ny vi chi tit dng li iu khin dao nhc ln theo trc Z.
Cavity: Khai bo ny vi chi tit dng lm dao di chuyn theo kiu Zigzag v cho
php ct theo c 2 chiu dng v m theo trc Z (phng php ny thng dng
nht).
Undefined:La chn ny trong trng hp khngxc nh c mt tronghai dng
trn, phnmm s t tnh ton ni suy ng chy dao.
Chn mtgia cng > Enter
Lc ny xut hin bng ty chn nh sau:
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Drive: chn mt gia cng
Check: chn mt khng gia cng
Containment: chn ng bao gii hn vng gia cng
Curves: chn ng cn chiu ln b mt gia cngSau khi chng ta chn Enter.
Xut hinhp tha Toolpath parameter.
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Nhn nt chut phi vo th vin chn dao gia cng l dao phay ngn D=3
Bng ny ta khai bo cc thng s cho dng c ct cc mu vng
Chn quabngsurface parameters
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Bng ny ta cn khai bo cc mt phng an ton, mt phng li dao, mt phng dao tin
theo ch ct v khai bo lng d cn li sau gia cng.
Chn quabng Rough project parameters
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Total tolerance: khai bo dung sai
Projection type: c 3 la chn
+ NCI: Chiu ng chy dao ca mt bc trc ln b mt cn gia cng
+ Curves:Chiu ng chy dao ca mt hay nhiu ng ln b mt cn gia cng
+ Point: Chiu ng chy dao ca mt hay nhiu im ln bt mt cn gia cng
Cut depths: khai bo chiu su gia cng
Sau khi khai bo xong nhn ok my tnh ton ng chy dao
Vo Backblot xem m phng ng chy dao
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Vo Verify xem m phng qu trnh gia cng chi tit
Kt qu gia cng th ca hai bc Surface Rough Radial vSurface Rough Project
3.4 Rough Flowline
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Chng ta dng gia cng th b mt c ng chy dao chy dc theo v tuyn ca
cc bin dng ca b mt.
Kch chn menu Toolpath > Surface Rough > Flowline Toolpath.
Lc ny xut hin cc ty chn sau:
Boss: Chdao di chuyn theo mt hng, hoc t 2 cnh xung v khng cho php dao
di chuyntheo chiu m ca trc Z khi ct.
Cavity: Phng php ny dao di chuyn theo kiu Zigzag v cho php ct theo c 2
chiu dng v m theo trc Z (phng php ny thng dngnht).
Undefined: c to trong hp thai ring.Chn mtchng ta cn gia cng > Enter.
Xut hinbng ty chn nh sau:
http://www.advance-cad.com/http://www.advance-cad.com/http://www.advance-cad.com/http://www.advance-cad.com/http://www.advance-cad.com/http://www.advance-cad.com/http://www.advance-cad.com/http://www.advance-cad.com/http://www.advance-cad.com/http://www.advance-cad.com/http://www.advance-cad.com/http://www.advance-cad.com/7/24/2019 09.Mastercam Phay 3d
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Drive: chn mt gia cng
Check: chn mt khng gia cng
Containment: chn ng bao gii hn vng gia cng
Containment: chn ng gii hn vng gia cng.Flowline:chn hng chy ca nggia cng.
Sau khi chng ta chn Enter. Xut hin bng Toolpath parameters
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Nhn nt chut phi vo th vin chn dao gia cng l dao cu R=6
Khai bo cc thng s ch ct cc mu vng
Chn quabng Surface parameters
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Bng ny ta cn khai bo cc mt phng an ton, mt phng li dao, mt phng dao tin
theo ch ct v khai bo lng d cn li sau gia cng.
Chn quabng Rough Flowline parameters
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Total tolerance: Dung sai cho php
Max stepdown: Chiu su ln nht ca mi lp ct
Stepover control: c hai la chn lng tin dao ngang
+ Distance: iu khin lng dch dao ngang bng khong cch c th
+Scallopheight: iu khin dch dao ngang bng chiu cao nhp nh b mt.
Sau khi khai bo xong nhn ok my tnh ton ng chy dao
Vo Backblot xem m phng ng chy dao
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Vo Verify
xem
m phng
qu trnh
gia cng
chi tit
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3.5 Rough Contour
Chng ta dng gia cng bin dng mt theo ng xon c t trn xung.
y l kiu gia cng th a nng m hay c s dng.
Kch chn menu Toolpath > Surface Rough > Contour Toolpath.
Chn mt chng ta cn gia cng > Enter.
Xut hinbng ty chn nh sau:
Drive: chn mt gia cng
Check: chn mt khng gia cngContainment: chn ng bao gii hn vng gia cng
Approximate starting point: chn im bt u gia cng.
Nhn OK xut hin bngToolpath parameter.
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Nhn nt chut phi vo th vin chndao gia cng l dao phay ngn D=10
Khai bo ch ct ca dao ti cc mu vng
Chn quabngSurface parameters
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Bng ny ta cn khai bo cc mt phng an ton, mt phng li dao, mt phng dao tintheo ch ct v khai bo lng d cn li sau gia cng.
Chn quabngRough contour parameters
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Total tolerance: dung sai cho php
Max stepdown: Chiu su ln nht mi lp ct
Directionof closed contours: hng gia cng theo contour kn.
+ Climb:phay thun.
+ Conventional:phay nghch.
Direction of open contours: hng gia cng theo contour h.
+ One way: dao chy vng mt hng
+ Zigzag: dao chy kiu ch Z
Transition: Thng s ny c 4 kiu n xung ca dao sau mi lp ct:
+ High speed: Dao s di chuyn theo kiu xon c.
+ Broken: Dao s di chuyn theo ng gp khc.
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+ Ramp: Dao se di chuyn theo hng nghing
+ Follow surface: Dao s di chuyn theo ng tip tuyn ca cc mt .
Entry/exit arc/line: Vo dao hoc ra dao theo ng thng hoc cung trn tip tuyn vi
mt gia cng trnh du dao khi vo hoc ra.
Use approximate starting point: chn im bt u xung dao gia cngCut depth: khai bo chiu su cn gia cng
Sau khi khai bo xong nhn ok my tnh ton ng chy dao
Vo Backblot xem m phng ng chy dao
Vo Verify xem m phng qu trnh gia cng chi tit
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3.6 Rough Pocket
Dng gia cng th mt hc hay mt b mt bt k gii hn bi mt ng bao. y l
kiu gia cng th an ton v a nng nht.
Kch chnmenu Toolpath > Surface Rough > Poket Toolpath.
Chn mt chng ta cn gia cng > Enter.
Xut hin bng ty chn nh sau:
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Drive: chn mt gia cng
Check: chn mt khng gia cng
Containment: chn ng bao gii hn vng gia cng
Approximate starting point: chn im bt u gia cng.
Nhn OK xut hin bngToolpath parameter.
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Nhn nt chut phi vo th vin chndao gia cng l Bull Mill D=20, R=5
Khai bo ch ct ti cc mu vng
Chuyn qua bng Surface parameters .
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Bng ny ta cn khai bo cc mt phng an ton, mt phng li dao, mt phng dao tintheo ch ct v khai bo lng d cn li sau gia cng.
Chn quabngRough parameters
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Tolerance: khai bo dung sai
Maximum stepdown: chiu su ln nht ca mi lp ct
Climb hay conventional: chiu phay thun hay nghch
Entry point: C 3 cch xung dao bt u gia cng
+ Use entry point: s dng mt im xung dao
+ Plunge outside containment boundary: xung dao pha ngoi ng gii hn
+ Align plunge entries for start holes: Xung dao dc theo l gia cng trc
Cut depth: khai bo chiu su gia cng
Chn qua bngPocket parameters
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Cutting method: Kiu qut ca dao gia cng th. C 8 kiu tt c.
+ Zigzac: Dao qut qua li theo cc ng song song.
+ Costant Overlap Spiral: Dao qut kiu xon c vi khng cch u nhau
+ Parallel Spiral: Dao qut theo kiu tng vng kn cch u nhau
+ Parallel Spiral Clean Corners: Dao qut theo kiu tng vng kn cch
u nhau v dng ti cc gc.
+ High speed: Dao qut tc cao
+ True Spiral: Dao qut theo ng xon c theo hnh trn
+ One way: Dao qut theo mt chiu c nh
+ Morph Spiral: Dao qut theo kiu xon c v hnh dng thay i
Stepover percentage: Lng tin ngang tnh theo phn trm ng knh dao
Sau khi khai bo xong nhn OK my tnh ton ni suy ng chay dao.
Vo Backblot xem m phng ng chy dao
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Vo Verify xem m phng qu trnh gia cng chi tit
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3.7 Rough Restmill
Dng gia cng th vt li lng d m bc gia cng trc li. Kiu gia cng
ny gip ta tit kim nhiu thi gian v ta khng phi gia cng li cc tt c cc mt m
ch vt li cc gc m dao trc khng vo c.
Kch chn menu Toolpath > Surface Rough > Restmill Toolpath.
Chn mt chng ta cn gia cng > Enter.
Lc ny xut hin cc ty chn sau:
Drive: chn mt gia cng
Check: chn mt khng gia cng
Containment: chn ng bao gii hn vng gia cng
Approximate starting point: chn im bt u gia cng.
Nhn OK xut hin bngToolpath parameter.
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Nhn nt chut phi vo th vin chndao gia cng l Ball Mill R=5
Khai bo ch ct ti cc mu vng
Chuyn qua bng Surface parameters .
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Bng ny ta cn khai bo cc mt phng an ton, mt phng li dao, mt phng dao tintheo ch ct v khai bo lng d cn li sau gia cng.
Chn quabngRestmill parameters
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Tolerance: khai bo dung sai
Maximum stepdown: chiu su ln nht ca mi lp ct
Climb hay conventional: chiu phay thun hay nghch
Directionof open contours: hng qut vng quanh hay qua li song song
Entry/exit line/arc: Vo ra dao theo g tip tuyn l ng thng hay cung trn
Use approximate start point: s dng mt im xung dao
Transition: Thng s ny c 4 kiu n xung ca dao sau mi lp ct:
+ High speed: Dao s di chuyn theo kiu xon c.
+ Broken: Dao s di chuyn theo ng gp khc.
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+ Ramp: Dao se di chuyn theo hng nghing
+ Follow surface: Dao s di chuyn theo ng tip tuyn ca cc mt.
Cut depth: khai bo chiu su gia cng
Chn qua bngRestmaterial parameters
Computer remaining stock from: cch tnh lng d gia cng
+ All previousoperation: Chn cc bc gia cng trc xc nh lng d
+ Roughing tool: Chn kch thc dao gia cng th ca bc trc xc nh lng
d
+ STL file: chn file chi tit m phng gia cng bc trc tnh lng d.
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Adjust to remaining stock: iu chnh lng d
+ Use remaining stock as computed: s dng lng d nh tnh ton
+ Adjust to remaining stock to ignore small cosps: b qua cc im nh
+ Adjust to remaining stock to mill small cosps: tnh lun cc im nh
Adjist distance: nhp lng offset iu chnh lng d
Sau khi khai bo xong nhn OK my tnh ton ni suy ng chay dao.
Vo Backblot xem m phng ng chy dao
Vo Verify xem m phng qu trnh gia cng chi tit
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3.8 Rough Plunge
Phng php ny gia cng bng cch n dao theo phng thng ng, kiu giacng ny
rt nguy him, dao d b cm vo chi tit v vy rt t dng
Kch chnmenu Toolpath > Surface Rough > Plunge Toolpath.
Cc bc khai bo ging nh cc phng php gia cng nu.
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Chng 4: Cc kiu chy dao gia cng tinh trong Mastercam X7
4.1 Finish Farallel
To ng chy dao song song theo nhng mt c chn v cho php gia cng tng
lp gia cng th b mt
Cc bc thc hin nh sau:
Kch chn menu Toolpath > Surface Finish> Parallel Toolpath
Chn mt gia cng > Enter. Lc ny xut hin bng ty chn nh s au :
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Drive: chn mt gia cng
Check: chn mt khng gia cng
Containment: chn ng bao gii hn vng gia cng
Approximate starting point: chn im bt u gia cng.
Sau khi chng ta chn Enter.
Xut hinhp thai Surface Rough Parallel:
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Toolpathparameters: Bng khai bo dao v ch ct
Tool name: Loi dao
Tool #: S hiu dao
Len offset: v tr b tr chiu di dao
Dia offset: v tr b tr ng knh dao
Head #: S hiu u dao
Coolant: Chn vo y m nc ti ngui
Spindle direction: Chiu quay trc chnh
Spindle speed: Vn tc ct vng/pht
Feed rate: Lng tin dao ngang
Plunge rate: Lng tin dao n xung theo trc Z
Chn qua bng Surface parameters
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Clearance: Mt phng an ton
Retract: Mt phng li dao
Feed plane: Mt phng dao chy theo ch ct
Tip Comp: chn tip l tnh ton ni suy theo nh ca dao
Stock to leave on drive: cha lng d ti cc mt gia cng
Stock to leave on check: dao cch cc mt khng gia cng
Tool containment: cho php khoanh vng gia cng
+ Inside: offset vo pha trong ng bao
+ Center: gii hn theo tm ng bao
+ Outside: offset ra pha ngoi ng bao
Chn qua bng Finish parallel parameters
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Total tolerance: Dung dai cho php, ch gia cng tinh nn dung sai l 0.01
Cutting method: kiu qut ca dao.C 2 phng php l zigzag v one way
Max stepover: Lng tin ngang ln nht
Machining angle: gc nghing ca ng chy dao
Use approximate start point: chn im xung daobt u qu trnh giacng
Depth limits:Nhm thng s trong hp thai ny c dng xc nh chiu su
ct ca dao trong sut qu trnh gia cng, chiu su ct c th c mc nh theo ch
tuyt i. Hp thai xut hin bn di:
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Gap settings.
Ci t ch v khang trng gia cc b mt gia cng . Nhng khong trng l do
mt khng kn hay do mt b gy, chng to ra bi:
+ Nhng mt lin tip nhau c ni khng chnh xc
+ Ti vng b ct, ni nhng khang trng c to ra
+ Do s di chuyn
Kch thc ca khe h c ch nh theo 2 cch:
+ Distance: khong cch khe h c th
+ % of stepover: khong cch theo phn trm gi tr ca mi bc ngang
Motion < Gap size: Mastercam cung cp 4 lai gia cng cho khang trng nh,
nhng mu ny xut hin:
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+ Direct: Trong lnh Direct dao di chuyn thng trn khang trng t v tr ny n v
tr kia. Trong lnh khc th dao c th di chuyn im cui ca ng gia cng trn mt
phng ny n im bt u ca ng gia cng trn mt kia (hai mt phi k cn
nhau).
+ Broken: Trong lnh Broken dao di chuyn trn khong trng ca cung c chia,theo trc Z v trc khc X hoc Y.
+ Smooth: Trong lnh Smooth ng gia cng di chuyn trn khong trng theo mt
tip tuyn. N thng c s dng vi tc cao ca my
+ Following surface: Trong lnh ny ng gia cng di chuyn trn khong trng theo
mt nghing ni gia hai mt k nhau
Nu dao di chuyn ln hn kch thc khang trng cho, th h thng s thm vos rt dao. ng gia cng cho nhng khang trng ln th lm theo 5 bc sau:
+ Gia cng trn mt t im u n im cui theo hng xc nh.
+ Rt dao nhanh.
+ Di chuyn nhanh trn khang trng ca im u, im cui ca mt th hai.
+ n xung t im bt u ca mt th hai.
+ Gia cng mt th hai theo hng nh
Sau khi khai bo xong nhn OK phn mm tnh ton ng chy dao.
Vo backplot xem ng chy dao
Nhn ntplay bt u
Kt qu ng chy dao nh hnh di y:
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Mun mphng xem qu trnh gia cng ta vo Verify . Nhn play v xem gia cng,
kt qu nh hnh bn di:
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4.2 Finish Parallel steep
Gia cng tinh li nhng ni cn st li lng d ca ln gia cng trc (c bit lcc mt c dc ln) dao di chuyn song song nhau vt liu ly i c xc nh bnggc nghing( dc).
Kch chnmenu Toolpath > Surface Finish > Parallel Steep Toolpath.Cc bc thc hin ging nh Finish parallel
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Chn quabng Surface parameters
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TRUNG TM CNG NGH ADVANCE CADBng ny ta cn khai bo cc mt phng an ton, mt phng li dao, mt phng dao tin
theo ch ct v khai bo lng d cn li sau gia cng.
Chuyn qua bng bngFinish parallel steep parameters
- Steep range: gii hn phm vi ct.+ From slope angle: gc nghing nh nht+ To slope angle: gc nghing ln nht
Khai bo xong nhn ok phn mm tnh ton ni suy ng chy dao
Vo backplot xem ng chy dao
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