B GIO DC V O TO TRNG I HC BCH KHOA H NI - TRN QUC HON NGHIấN CU NG DNG PHN MM CAD/CAM (CATIA) THIT K V CH TO MU C DNG CHO CC DOANH NGHIP C GANG Chuyờn ngnh : Cụng ngh ch to mỏy LUN VN THC S K THUT NGI HNG DN KHOA HC : TS Hong Vn in PGS.TS Nguyn Vit Tip H Ni Nm 2010 LI CAM OAN Tụi xin cam oan nhng kt qu cú c Lun l bn thõn tụi thc hin di s hng dn ca thy giỏo PGS.TS Nguyn Vit Tip v TS Hong Vn in Ngoi phn ti liu tham kho ó c lit kờ, cỏc s liu v kt qu thc nghim l trung thc v cha c cụng b bt c cụng trỡnh no khỏc Thỏi Nguyờn, thỏng 10 nm 2010 Ngi thc hin Trn Quc Hon LI NểI U Ngy cựng vi s phỏt trin ca khoa hc k thut, vic ỏp dng nhng tin b khoa hc k thut tt c cỏc lnh vc sn xut nhm gim thiu ti a ph phm, cỏc cụng on khụng cn thit, tit kim nhõn lc, vt t v to c sn phm cht lng cao vi giỏ thnh r L mc tiờu mi doanh nghip u hng ti Cụng ngh ỳc núi chung v cụng ngh ỳc khuụn cỏt núi riờng c s dng rng rói ngnh ch to mỏy Hin trờn th gii k ngh ỳc kim loi phỏt trin, ó cú nhiu phng phỏp ỳc tiờn tin i Tuy nhiờn phng phỏp ỳc khuụn cỏt c dựng ph bin ch to phụi Vic nghiờn cu ng dng cỏc cụng ngh hin i vo quỏ trỡnh sn xut ỳc ang c cỏc nh sn xut quan tõm nhm tng nng sut v h giỏ thnh sn phm Vi ti " ng dng phn mm CAD/CAM (CATIA) thit k v ch to mu ỳc dựng cho cỏc doanh nghip ỳc gang" tỏc gi mong mun gúp mt phn giỳp cỏc doanh nghip ỳc gang ti Thỏi Nguyờn, c bit l cỏc doanh nghip ỳc gang va v nh, ng dng c cụng ngh cao vo thc t sn xut nhm nõng cao tớnh cnh tranh cho cỏc doanh nghip xu th hi nhp hin Trong thi gian thc hin c ti, tỏc gi ó nhn c s quan tõm rt ln ca Nh trng, Khoa o to sau i hc, cỏc doanh nghip, cỏc thy cụ giỏo v cỏc ng nghip Tỏc gi xin trõn thnh cm n Ban Giỏm hiu, khoa o to sau i hc trng i hc Bỏch khoa H Ni; Ban Giỏm hiu, khoa C khớ trng Cao ng C khớ luyn kim ó to iu kin tt nht cho tụi sut quỏ trỡnh hc Tỏc gi xin by t li cm n chõn thnh nht n PGS.TS Nguyn Vit Tip - Trng i hc Bỏch Khoa H Ni, TS Hong Vn in - Hiu trng trng i hc Cụng nghip H Ni, ó tn tỡnh hng dn quỏ trỡnh thc hin Lun ny Tỏc gi xin trõn trng cm n thy, cụ giỏo, cỏc bn ng nghip, cỏc doanh nghip ỳc gang ti Thỏi Nguyờn, cỏc n v sn xut m tỏc gi ó n kho sỏt v lm thc nghim: Vin Nghiờn cu phỏt trin CNC v KTCN- i hc Thỏi Nguyờn, Cụng ty ph tựng mỏy s Thỏi Nguyờn, cụng ty THHH Nh nc mt thnh viờn Diesel Sụng Cụng, doanh nghip t nhõn c khớ gang Hựng V ó tn tỡnh giỳp quỏ trỡnh thc hin ti Mc dự ó c gng, song kin thc v kinh nghim cũn hn ch nờn chc chn Lun ny khụng trỏnh thiu sút Tỏc gi rt mong s nhn c nhng ý kin úng gúp t cỏc thy cụ giỏo v cỏc ng nghip Lun c hon thin hn v cú ý ngha thc tin Xin chõn thnh cm n! H Ni, thỏng 10 nm 2010 Ngi thc hin Trn Quc Hon MC LC Trang Trang ph bỡa Li cam oan Li núi u Danh mc cỏc ký hiu, cỏc ch vit tt Danh mc cỏc hỡnh v, th M U 10 Chng TNG QUAN CễNG NGH C KHUễN CT V THIT K CH TO MU C 1.1 Tng quan v cụng ngh ỳc bng khuụn cỏt 14 1.1.1 Gii thiu chung 14 1.1.2 Cụng ngh ỳc bng khuụn cỏt 14 1.1.3 Quy trỡnh cụng ngh ỳc bng khuụn cỏt 15 1.1.4 Cỏc phng phỏp lm khuụn cỏt 16 1.2 Tng quan v mu ỳc v cụng ngh ch to mu 23 1.2.1 Yờu cu: 23 1.2.2 Vt liu lm mu 23 1.2.3 Thit b dựng ch to mu 28 1.2.4 Lng d v cỏc lu ý cụng ngh 29 1.2.5 Kt cu mu ỳc 32 1.3 Kho sỏt cụng ngh ỳc ca mt s doanh nghip ỳc gang ti 32 Thỏi Nguyờn KT LUN CHNG 34 Chng - TNG QUAN V CễNG NGH CAD/CAM - CNC 35 V PHN MM CATIA 2.1 Tng quan v cụng ngh CAD/CAM - CNC 35 2.1.1 Thit k vi s tr giỳp ca mỏy tớnh (CAD) 35 2.1.2 Sn xut vi tr giỳp ca mỏy tớnh (CAM) 37 2.1.3 i tng phc v ca CAD/CAM 40 2.1.4 Vai trũ ca CAD/CAM chu k sn xut 41 2.1.5 Thit k v gia cụng to hỡnh 42 2.2 Gii thiu v phn mm Catia 45 2.2.1 Thanh coõng cuù vaứ menu: 47 2.2.2 Cu trỳc cõy: 48 2.2.3 Thit lp cu hỡnh 49 2.2.4 Cụng c v phỏc i tng - Sketch 52 2.2.5 Cụng c thit k chi tit PART DESIGN 62 2.2.6 Lp trỡnh gia cụng CNC - ng dng gia cụng mu 64 2.2.7 Xut chng trỡnh NC iu khin mỏy gia cụng 74 KT LUN CHNG Chng - NG DNG PHN MM CATIA THIT K V CH 80 81 TO MU C 3.1 Mt s chi tit c ỳc ph bin mt s doanh nghip 81 3.2 Quy trỡnh thit k v ch to mu ỳc: 82 3.3 Thit k mụ hỡnh CAD 3D ca chi tit 83 3.4 Thit k mu ỳc: 85 3.5 Lp trỡnh gia cụng mu 87 3.4 Xut chng trỡnh iu khin mỏy CNC 89 3.5 Gia cụng mu 90 KT LUN CHNG 93 Chng KT QU V BN LUN 94 KT LUN V KIN NGH 95 TI LIU THAM KHO 96 PH LC 97 DANH MC CC Kí HIU CC T VIT TT Ký hiu CMM Ting anh Ting vit Coordinate Measuring Machine Mỏy o to chiu Reverse engineering K thut tỏi to ngc VMC vertical machining center Trung tõm gia cụng ng CAD Computer Aided Design CAM Computer Aided Manufacturing CNC Computer Numerical Control iu khin s bng mỏy tớnh Computer Intergrated Sn xut tớch hp vi s tr Manufacturing giỳp ca mỏy tớnh RE CIM Thit k vi tr giỳp ca mỏy tớnh tớnh Lp k hoch sn xut cú tr CAP Computer Aided Planning MRP Manufacturing Resource Planning CAPP Sn xut cú tr giỳp ca mỏy giỳp ca mỏy tớnh Cỏch thc Lp k hoch sn xut Computer Aided Process Lp quy trỡnh cú tr giỳp ca Planning mỏy tớnh CAQ Computers Aided Quality Control PP&C Production Planning and control DNC Direct Numerical Control Kim tra v qun lý cht lng sn phm Lp k hoch sn xut v iu khin iu khin s trc tip DANH MC CC HèNH V, TH Trang Hỡnh 1.1 S quỏ trỡnh ỳc khuụn cỏt 16 Hỡnh 1.2 Lm khuụn hai hũm 17 Hỡnh 1.3 Lm khuụn trờn nn xng 18 Hỡnh 1.4 Lm khuụn bng dng gt 19 Hỡnh 1.5 Mỏy dn ộp 20 Hỡnh 1.6 S Mỏy va dn va ộp 21 Hỡnh 1.7 Phng phỏp kt cu mu epụxi 27 Hỡnh 1.8 Mỏy tin g 29 Hỡnh 1.9 Lm khuụn th cụng trờn nn xng 33 Hỡnh 1.10 Qui trỡnh ch to mu ỳc ca cỏc DN ỳc gang 33 Hỡnh 2.1 S chu k sn xut 41 Hỡnh 2.2 S chu k sn xut dựng CAD/CAM 41 Hỡnh 2.3 43 Hỡnh 2.6 Qui trỡnh thit k v gia cụng to hỡnh theo cụng ngh truyn thng Qui trỡnh thit k v gia cụng to hỡnh theo cụng ngh CAD/CAM Qui trỡnh thit k v gia cụng to hỡnhtheo cụng nghờ tớch hp CIM Giao din mn hỡnh ca Catia Hỡnh 2.7 Cu trỳc cõy ca Catia 49 Hỡnh 3.1 Mt s chi tit c ỳc ti cỏc DN Thỏi Nguyờn 81 Hỡnh 3.2 Quy trỡnh thit k, ch to mõu ỳc 82 Hỡnh 3.3 Bn v k thut ca chi tit khỏch hng cung cp 84 Hỡnh 3.4 Mụ hỡnh CAD 3D ca chi tit ỳc 85 Hỡnh 3.5 Mt Phõn khuụn 85 Hỡnh 3.6 Phng ỏn thit k u gỏc thao 86 Hỡnh 3.7 Mụ hỡnh CAD 3D ca mu ỳc 87 Hỡnh 3.8 Bn v lng phụi ca mu ỳc 87 Hỡnh 2.4 Hỡnh 2.5 44 45 47 Hỡnh 3.9 Mụ Phng quỏ trỡnh phay thụ 88 Hỡnh 3.10 Mụ phng quỏ trỡnh phay tinh 88 Hỡnh 3.11 Mụ phng quỏ trỡnh phay vột (Gia cụng li) 89 Hỡnh 3.12 Chng trỡnh gia cụng CNC 89 Hỡnh 3.13 Giao din chng trỡnh DNC Server 90 Hỡnh 3.14 Mỏy Phay CNC VMC - 85S 90 Hỡnh 3.15 Mu ỳc c gia cụng trờn mỏy Phay CNC 91 Hỡnh 3.16 ng dng sn phm ca ti sn xut 92 Hỡnh 3.17 Mt s hỡnh nh v sn phm ng dng 92 PHN M U Tớnh cp thit ca ti CAD/CAM - Thit k v gia cụng vi s tr giỳp ca mỏy tớnh Cựng vi s phỏt trin ca cụng ngh thụng tin, CAD/CAM ó c ng dng nhanh chúng cụng nghip vỡ nú l cụng c giỳp cỏc nh thit k v ch to sn phm cú th thay i mu mó hoc la chn phng ỏn gia cụng ti u mt cỏch nhanh chúng, chớnh xỏc v linh hot Khỏi nim CAD/CAM dự ó cú t rt lõu nhng ang tip tc c phỏt trin v m rng Ban u CAD v CAM c s dng c lp mụ t vic lp trỡnh b phn vi s tr giỳp ca mỏy tớnh v cỏc bn v, Trong nhng nm gn õy, hai khỏi nim ny c ni kt vi to khỏi nim thng nht CAD/CAM, biu din mt phng phỏp tớch hp mỏy tớnh ton b quỏ trỡnh sn xut bao trựm c hai khõu thit k v sn xut C th pha thit k bao gm ton b cỏc hot ng liờn quan n cỏc d liu k thut nh bn v, cỏc mụ hỡnh, cỏc phn t hu hn, bn ghi cỏc chi tit v k hoch, thụng tin chng trỡnh NC Trong khõu sn xut, cỏc ng dng ca mỏy tớnh bao trựm lp k hoch quỏ trỡnh, iu sn xut, NC, CNC, qun lý cht lng v lp rỏp Ngh ỳc i cỏch õy khong sỏu ngn nm, c coi nh l s kt hp khộo lộo gia gm v ngh thut luyn kim ỳc khuụn cỏt l mt phng phỏp to hỡnh ó lõu i, nhng cho ti nú chim v trớ quan trng k ngh ỳc: 90% sn lng vt ỳc ca th gii sn xut bng khuụn cỏt, phn cũn li khuụn kim loi v cỏc dng ỳc c bit khỏc Khuụn cỏt c dựng nhiu vỡ d ch to, r, u t ớt Hn na khuụn cỏt li rt nng, cú th ỳc vt nh t 10g cho ti vt ln cú lng hng trm tn, cú th dựng ỳc bt k hp kim no: thộp, gang, ng thanh, ng thau, nhụm, hp kim niken, hp kim nhụm, magờ Vi ch trng ca Nh nc v phỏt trin khu cụng nghip Gang thộp Thỏi Nguyờn, bc vo thi k i mi, ó cú nhiu doanh nghip ỳc gang xung 10 TI LIU THAM KHO [1] Phan Ngc Trỳc(1996), Giỏo trỡnh K thut Ch to mỏy - Phn sn xut ỳc, Trng H K thut Cụng nghip Thỏi Nguyờn [2] Nguyn Xuõn Bụng v Phm Quang Lc (1978), Thit k ỳc , NXB KH&KT [3] Phm Quang Lc (2000), K thut ỳc, NXB Thanh niờn [4] P.L.Jain - Nhng nguyờn lý c bn ca Cụng ngh ỳc - nhúm ngi dch Lờ Vn Vit, Li Minh Dng, Ngụ Vn Thỏi [5] Phan T Phựng (ch biờn) (1985) Sỏch tra cu ỳc gang - NXB Khoa hc v K thut H Ni [6] PGS.TS Lờ Vn Minh (2006) Thit b ỳc NXB Khoa hc v K thut H Ni [7] Prjibul Lờ Vn Trỳc (dch)(1974) Lý thuyt cỏc quỏ trỡnh ỳc NXB Khoa hc v k thut H Ni [8] Z.Janjusevic - Z.Gulisija - S.Radosavljevic - Z.Acimovic (2000), A contribution to study of processes on the steel cast - sand mould contact surface during casting, September 2000, Materials letters [9] I.K.Craig - F.R.Camisani - P.C.Pistorius (2001), A contempative stance on the automation of tinuous casting in steel processing, Control engineering practice [10] WEI En_fa - YANG Yin-dong - FENG Chang-lin - I.D.Sommerville A.McLean (2006), Effect of carbon properties on melting behavior of Mold Fluxes for continuous casting of steels, www.sciencedirect.com [11] Charles Monroe - Christoph Beckermann (2005), Development of a hot tear indicator for steel castings, Materials science & Engineering [12] http://www.lightdome.co.uk 96 PHN PH LC Ph lc 1: Chng trỡnh gia cụng mt trờn ca mu % O0111 N1 G49 G54 G20 G80 G40 G90 G23 G94 G17 G98 N2 T1 M6 N3 G0 X60.2317 Y78.9317 S1700 M3 N4 G43 Z84.1 H1 N5 G1 Z74 F300 N6 Y67.8317 N7 X106.8914 F600 N8 X127.8317 Y47.5324 N9 Y-47.5324 N10 X106.8914 Y-67.8317 N11 X-106.8914 N12 X-127.8317 Y-47.5324 N13 Y47.5324 N14 X-106.8914 Y67.8317 N15 X60.2317 N16 Y57.4317 N17 X102.678 N18 X102.9072 Y57.9976 N19 X102.678 Y57.4317 N20 X117.4317 Y43.1296 N21 X118.0273 Y43.3817 N22 X117.4317 Y43.1296 N23 Y-43.1296 N24 X118.0273 Y-43.3817 97 N25 X117.4317 Y-43.1296 N26 X102.678 Y-57.4317 N27 X102.9072 Y-57.9976 N28 X102.678 Y-57.4317 N29 X-102.678 N30 X-102.9072 Y-57.9976 N31 X-102.678 Y-57.4317 N32 X-117.4317 Y-43.1296 N33 X-118.0273 Y-43.3817 N34 X-117.4317 Y-43.1296 N35 Y43.1296 N36 X-118.0273 Y43.3817 N37 X-117.4317 Y43.1296 N38 X-102.678 Y57.4317 N39 X-102.9072 Y57.9976 N40 X-102.678 Y57.4317 N41 X60.2317 N42 Y47.0317 N43 X98.4645 N44 X98.6938 Y47.5976 N45 X98.4645 Y47.0317 N46 X107.0317 Y38.7268 N47 X107.6273 Y38.9789 N48 X107.0317 Y38.7268 N49 Y-38.7268 N50 X107.6273 Y-38.9789 N51 X107.0317 Y-38.7268 N52 X98.4645 Y-47.0317 N53 X98.6938 Y-47.5976 98 N54 X98.4645 Y-47.0317 N55 X-98.4645 N56 X-98.6938 Y-47.5976 N57 X-98.4645 Y-47.0317 N58 X-107.0317 Y-38.7268 N59 X-107.6273 Y-38.9789 N60 X-107.0317 Y-38.7268 N61 Y38.7268 N62 X-107.6273 Y38.9789 N63 X-107.0317 Y38.7268 N64 X-98.4645 Y47.0317 N65 X-98.6938 Y47.5976 N66 X-98.4645 Y47.0317 N67 X60.2317 N68 Y36.6317 N69 X94.2511 N70 X94.4803 Y37.1976 N71 X94.2511 Y36.6317 N72 X96.6317 Y34.324 N73 X97.2273 Y34.5761 N74 X96.6317 Y34.324 N75 Y-34.324 N76 X97.2273 Y-34.5761 N77 X96.6317 Y-34.324 N78 X94.2511 Y-36.6317 N79 X94.4803 Y-37.1976 N80 X94.2511 Y-36.6317 N81 X-94.2511 N82 X-94.4803 Y-37.1976 99 N83 X-94.2511 Y-36.6317 N84 X-96.6317 Y-34.324 N85 X-97.2273 Y-34.5761 N86 X-96.6317 Y-34.324 N87 Y34.324 N88 X-97.2273 Y34.5761 N89 X-96.6317 Y34.324 N90 X-94.2511 Y36.6317 N91 X-94.4803 Y37.1976 N92 X-94.2511 Y36.6317 N93 X60.2317 N94 Y26.2317 N95 X86.2317 N96 X87.8961 Y27.8961 N97 X86.2317 Y26.2317 N98 Y-26.2317 N99 X87.8961 Y-27.8961 N100 X86.2317 Y-26.2317 N101 X-86.2317 N102 X-87.8961 Y-27.8961 N103 X-86.2317 Y-26.2317 N104 Y26.2317 N105 X-87.8961 Y27.8961 N106 X-86.2317 Y26.2317 N107 X60.2317 N108 Y15.8317 N87793 X-119.9496 Y242.6326 Z9.2725 N87794 X-119.7891 Y244.8632 Z9.2726 100 N87795 X-119.5192 Y247.1416 Z9.2721 N87796 X-119.113 Y249.5875 Z9.2675 N87797 X-118.5638 Y252.1086 Z9.2605 N87798 X-117.9577 Y254.3689 Z9.2579 N87799 X-117.1663 Y256.8247 Z9.2605 N87800 X-116.3259 Y259.0606 Z9.2742 N87801 X-115.2696 Y261.4892 Z9.2719 N87802 X-114.3425 Y263.3933 Z9.2725 N87803 X-113.0806 Y265.6867 Z9.2721 N87804 X-111.8757 Y267.6555 Z9.2727 N87805 X-110.4196 Y269.7871 Z9.2723 N87806 X-108.9461 Y271.7356 Z9.2724 N87807 X-107.4291 Y273.5584 Z9.2728 N87808 X-105.8985 Y275.2375 Z9.273 N87809 X-104.1903 Y276.9438 Z9.2711 N87810 X-102.2551 Y278.6937 Z9.258 N87811 X-100.4937 Y280.1455 Z9.2358 N87812 X-98.453 Y281.6683 Z9.196 N87813 X-96.7322 Y282.8359 Z9.1711 N87814 X-94.3646 Y284.2769 Z9.1926 N87815 X-92.2334 Y285.4305 Z9.2033 N87816 X-91.8875 Y285.5985 Z9.2041 N87817 X-92.2334 Y285.4305 Z9.2033 N87818 X-94.3646 Y284.2769 Z9.1926 N87819 X-96.4783 Y282.9993 Z9.178 N87820 X-98.4571 Y281.6741 Z9.1149 N87821 X-99.7487 Y280.7271 Z9.0295 N87822 X-101.5795 Y279.3789 Z9 N87823 X-102.9516 Y278.2867 101 N87824 X-105.1793 Y276.366 N87825 X-106.7875 Y274.711 N87826 X-108.7753 Y272.4247 N87827 X-110.2405 Y270.5378 N87828 X-111.568 Y268.6488 N87829 X-113.1895 Y266.0898 N87830 X-114.3558 Y264.0048 N87831 X-114.6786 Y263.3636 N87832 X-115.3344 Y261.9145 N87833 X-116.5174 Y259.1332 N87834 X-117.3281 Y256.8863 N87835 X-118.0194 Y254.6894 N87836 X-118.8021 Y251.7752 N87837 X-119.5079 Y248.6202 N87838 X-120.0736 Y244.8945 N87839 X-120.1447 Y244.1797 N87840 X-120.2857 Y241.8072 N87841 X-120.3179 Y239.7576 N87842 Y199.9854 N87843 X-120.291 Y198.4109 N87844 X-120.1033 Y195.3757 N87845 X-119.7869 Y193.0825 N87846 X-119.3702 Y190.7818 N87847 X-118.8606 Y188.4332 N87848 X-118.2951 Y186.2579 N87849 X-117.5297 Y183.7421 N87850 X-116.355 Y180.4547 N87851 X-115.4377 Y178.34 N87852 X-114.4461 Y176.1671 102 N87853 X-113.3221 Y174.1472 N87854 X-111.7252 Y171.576 N87855 X-110.3563 Y169.6181 N87856 X-108.9419 Y167.7898 N87857 X-106.9766 Y165.4878 N87858 X-105.4389 Y163.8732 N87859 X-103.5939 Y162.2312 N87860 X-101.6525 Y160.6829 N87861 X-100.7098 Y159.9926 N87862 X-98.7083 Y158.5025 Z9.0963 N87863 X-96.7342 Y157.167 Z9.1705 N87864 X-94.9603 Y156.0775 Z9.1881 N87865 X-93.5569 Y155.2824 Z9.1938 N87866 X-91.8115 Y154.3641 Z9.204 N87867 X-92.672 Y154.8015 Z9.2029 N87868 X-94.9603 Y156.0775 Z9.1881 N87869 X-96.7342 Y157.167 Z9.1705 N87870 X-98.8655 Y158.625 Z9.143 N87871 X-100.6992 Y160.0062 Z9.1153 N87872 X-101.465 Y160.6348 Z9.0899 N87873 X-102.4971 Y161.4922 Z9.0756 N87874 X-104.3104 Y163.1433 Z9.0332 N87875 X-105.4623 Y164.2903 Z9.0016 N87876 X-106.8268 Y165.7366 Z9 N87877 X-107.746 Y166.774 Z9.0078 N87878 X-109.2251 Y168.5777 Z9.0075 N87879 X-110.657 Y170.501 N87880 X-111.996 Y172.4883 Z9.0071 N87881 X-113.365 Y174.7631 Z9.0054 103 N87882 X-114.4743 Y176.8194 Z9.0148 N87883 X-115.4801 Y178.9093 Z9.0449 N87884 X-116.4453 Y181.1843 Z9.0516 N87885 X-117.4552 Y183.993 Z9.0613 N87886 X-118.0194 Y185.7831 Z9.0626 N87887 X-118.7129 Y188.4647 Z9.0577 N87888 X-119.233 Y191.0033 Z9.0506 N87889 X-119.5721 Y193.1153 Z9.0287 N87890 X-119.8556 Y195.6938 Z9.0104 N87891 X-120.0095 Y198.2264 Z9.0009 N87892 X-120.0452 Y199.987 Z9 N87893 X-120.0302 Y240.7752 Z9.0008 N87894 X-119.9728 Y242.6339 Z9.0054 N87895 X-119.8123 Y244.8657 Z9.0056 N87896 X-119.4826 Y247.506 Z9.0371 N87897 X-119.0711 Y249.8807 Z9.0519 N87898 X-118.5801 Y252.1123 Z9.0694 N87899 X-117.888 Y254.6471 Z9.0623 N87900 X-117.183 Y256.8311 Z9.0554 N87901 X-116.2116 Y259.3798 Z9.0433 N87902 X-115.2883 Y261.4979 Z9.0349 N87903 X-114.1149 Y263.8701 Z9 N87904 X-112.9489 Y265.9552 N87905 X-111.7343 Y267.9058 Z9.01 N87906 X-110.4388 Y269.8005 Z9.0041 N87907 X-108.9645 Y271.75 Z9.0047 N87908 X-107.4468 Y273.5733 Z9.0069 N87909 X-105.9148 Y275.2529 Z9.0166 N87910 X-104.9969 Y276.1745 Z9.0039 104 N87911 X-103.8516 Y277.2814 Z9.0387 N87912 X-102.2656 Y278.7051 Z9.0808 N87913 X-101.2322 Y279.5562 Z9.1032 N87914 Z15.1032 F1000 N87915 G0 Z69.4 N87916 M5 N87917 M30 N87918 M2 N87919 M30 % 105 Ph lc 2: Chng trỡnh gia cụng mt di ca mu: % O0041 N1G21 N2G0G17G40G49G80G90 N4G0G90X73.899Y-106.554S1800M3 N5G43H2Z50.M8 N6Z-.468 N7G1Z-5.468F40 N8X75.177Z-8.337F120 N9X77.694Z-12.348 N10X80.13Z-14.66 N11X82.5Z-15.405 N12X86.85 N13X87.169Z-14.764 N14X87.29Z-14.504 N15X88.022Z-13.312 N16X88.738Z-12.335 N17X88.932Z-12.127 N18X89.518Z-11.435 N19X89.935Z-11.055 N20X90.344Z-10.638 N21X91.061Z-10.097 N22X91.198Z-9.978 N23X92.061Z-9.467 N24X92.754Z-9.228 N25X92.917Z-9.163 N26X93.603Z-9.072 N27X93.75Z-9.046 106 N28Z-9.041 N29X93.813Z-9.053 N30X96.187 N31X96.25Z-9.041 N32X96.464Z-9.081 N33X97.083Z-9.163 N34X97.246Z-9.228 N35X97.939Z-9.467 N36X98.802Z-9.978 N37X98.939Z-10.097 N38X99.656Z-10.638 N39X100.065Z-11.055 N40X100.482Z-11.435 N41X101.068Z-12.127 N42X101.262Z-12.335 N43X101.978Z-13.312 N44X101.998Z-13.348 N45X102.71Z-14.504 N46X102.831Z-14.764 N47X103.15Z-15.405 N48X107.5 N49X109.87Z-14.66 N50X112.306Z-12.348 N51X114.823Z-8.337 N52X116.101Z-5.468 N53G0Z-.468 N54Z50 N55X120.129Y-105.562 N56Z-.468 107 N57G1Z-5.468F40 N58X119.879Z-6.358F120 N59X117.209Z-14.105 N60X114.655Z-19.842 N61X112.196Z-23.761 N62X109.816Z-26.019 N63X109.628Z-26.078 N64X109.62Z-26.083 N65X109.596Z-26.087 N66X109.314Z-26.122 N67X108.078Z-26.285 N68X107.62Z-26.316 N3547X148.604Z-23.567 N3548X148.848Z-22.158 N3549X148.906Z-21.736 N3550X149.201Z-19.746 N3551X149.562Z-16.987 N3552X149.6Z-16.645 N3553X150.053Z-12.795 N3554X150.659Z-7.187 N3555X150.833Z-5.468 N3556X149.962Y-55.946 N3557X149.497Z-8.607 N3558X149.09Z-10.95 N3559X148.737Z-12.621 N3560X148.709Z-12.769 N3561X148.393Z-13.933 N3562X148.106Z-14.684 108 N3563X148.065Z-14.813 N3564X148.018Z-14.869 N3565X147.756Z-15.277 N3566X147.508Z-15.404 N3567X103.15Z-15.405 N3568X102.831Z-14.764 N3569X102.71Z-14.504 N3570X101.998Z-13.348 N3571X101.978Z-13.312 N3572X101.262Z-12.335 N3573X101.068Z-12.127 N3574X100.482Z-11.435 N3575X100.065Z-11.055 N3576X99.656Z-10.638 N3577X98.939Z-10.097 N3578X98.802Z-9.978 N3579X97.939Z-9.467 N3580X97.246Z-9.228 N3581X97.083Z-9.163 N3582X96.464Z-9.081 N3583X96.25Z-9.041 N3584X96.187Z-9.053 N3585X93.813 N3586X93.75Z-9.041 N3587X93.536Z-9.081 N3588X92.917Z-9.163 N3589X92.754Z-9.228 N3590X92.061Z-9.467 N3591X91.198Z-9.978 109 N3592X91.061Z-10.097 N3593X90.344Z-10.638 N3594X89.935Z-11.055 N3595X89.518Z-11.435 N3596X88.932Z-12.127 N3597X88.738Z-12.335 N3598X88.022Z-13.312 N3599X88.002Z-13.348 N3600X87.29Z-14.504 N3601X87.169Z-14.764 N3602X86.85Z-15.405 N3603X42.5 N3604X42.253Z-15.278 N3605X42.211Z-15.246 N3606X42.2Z-15.225 N3607X41.935Z-14.813 N3608X41.649Z-14.065 N3609X41.613Z-13.96 N3610X41.291Z-12.769 N3611X40.92Z-11.013 N3612X40.503Z-8.607 N3613X40.038Z-5.468 N3614G0Z-.468 N3615Z150 N3616M5 N3617G91X0.Y0 N3619M30 % 110 ... phn mm CAD/CAM (CATIA) thit k v ch to mu ỳc dựng cho cỏc doanh nghip ỳc gang" tỏc gi mong mun gúp mt phn giỳp cỏc doanh nghip ỳc gang ti Thỏi Nguyờn, c bit l cỏc doanh nghip 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