Bi tp ln CAD/CAM/CNC II GVHD: TS. Trng c
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LI M UVi s pht trin ca khoa hc cng ngh trong nhng thp nin gn y,
th k XIX c coi l th k ca k nguyn s v cng ngh cao.Xu th tp trung v
nhng ngnh cng nghip cng ngh cao, k thut tinh vi chuyn mn t ng trong
sn xut t khu nghin cu ch to n bc cui cng hnh thnh sn phm. p ng nhng
nhu cu yu cu cao ca con ngi, cng nh ph hp vi s tt yu pht trin ca
thi i nn kinh t tri thc ngy cng hon thin v tin tin hn.Trong ngnh
khoa hc cng ngh cao th lnh vc thit k ng gp to ln cho s pht trin
khoa hc cng ngh ca ton nhn loi, trong phn mn CATIA l mt trong nhng
phn mn c rt nhiu hng cng ngh ni ting s dng thit k sn phm ca hng
mnh.Trong qu trnh hc tp v nghin cu, c s gip tn tnh ca thy ging dy
mn hc CAD/CAM/CNC II gip chng em hon thnh mn hc ny. Tuy c nhiu c
gng nhng khng trnh khi nhng sai st v hn ch cn khc phc. V vy chng em
rt mong c s ch bo ng gp kin t thy chng em c th khc phc v hon thin
hn ti m chng em nghin cu.Cui cng chng em xin chn thnh cm n s quan
tm ch bo tn tnh ca thy TS.Trng c Phc gip chng em hon thnh ti ny
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Trn trng cm n H Ni, ngy 16 thng 3 nm 2015
Chng 1. Gii thiu v CatiaCATIA l thut ng c vit tt t cm t ting anh
sau (ComputerAidedThree DimensionalInteractiveApplication), dch nm
na c ngha trong ting vit l X l tng tc trong khng gian ba chiu c s h
tr ca my tnh, Catia l mt b phn mm thng mi phc hp CAD/CAM/CAE c hng
Dassault Systemes ( y l mt cng ty ca Php) pht trin v IBM l nh phn
phi trn ton th gii. Catia c vit bng ngn ng lp trnh C++. Catia l vin
nn tng u tin ca b phn mm qun l ton b 1 chu trnh sn phm ca hang
Dassault.1.Lch s pht trin phn mmPhn mm ny c vit vo cui nhng nm 1970
v u 1980 pht trin my bay chin u Mirage ca Dassault, sau c p dng
trong ngnh hng khng v tr, t, ng tu, v cc ngnh cng nghip khc. Kin
trc s Frank Gehry s dng n thit k cc Bo tng Guggenheim Bilbao v Walt
Disney Concert Hall.CATIA bt u c hng sn xut my bay Php Avions
Marcel Dassault pht trin, vo thi im l khch hng ca cc phn mm CADAM
CAD.Lc u phn mm tn l CATI (Conception Assiste Tridimensionnelle
Interactive ting Php ngha l Thit k ba chiu c my tnh h tr v c tng tc
) n c i tn thnh CATIA nm 1981, khi Dassault to ra mt chi nhnh pht
trin v bn cc phn mm v k hp ng khng c quyn phn phi vi IBM.Nm 1984,
Cng ty Boeing chn CATIA l cng c chnh thit k 3D, v tr thnh khch hng
ln nht.Nm 1988, CATIA phin bn 3 c chuyn t cc my tnh Mainframe sang
UNIX.Nm 1990, General Dynamics/Electric Boat Corp chn CATIA nh l
cng c chnh thit k 3D, thit k cc tu ngm ht nhn ca Hi qun Hoa K.Nm
1992, CADAM c mua t IBM v cc nm tip theo CADAM CATIA V4 c cng b. Nm
1996, n c chuyn t mt n bn h iu hnh Unix, bao gm IBM AIX, Silicon
Graphics IRIX, Sun Microsystems SunOS v Hewlett-Packard HP-UX.Nm
1998, mt phin bn vit li hon ton CATIA, CATIA V5 c pht hnh, vi s h
tr cho UNIX, Windows NT v Windows XP t 2001.Nm 2008, Dassault cng b
CATIA V6, h tr cho cc h iu hnh Windows, cc h iu hnh khng phi
Windows khng c h tr na.Phn mm CATIA l h thng CAD/CAM/CAE 3D hon
chnh v mnh m nht hin nay, do hng Dassault Systems pht trin, phin bn
mi nht hin nay l CATIA V5R22 , l tiu chun ca th gii khi gii quyt
hng lot cc bi ton ln trong nhiu lnh vc khc nhau nh: xy dng, c kh, t
ng ha, cng nghip t, tu thy v cao hn l cng nghip hng khng. N gii
quyt cng vic mt cch trit , t khu thit k m hnh CAD (Computer Aided
Design), n khu sn xut da trn c s CAM (Computer Aided
Manufacturing), kh nng phn tch tnh ton, ti u ha li gii da trn chc
nng CAE(Computer Aid Engineering) ca phn mmCATIA.2. La chn m
hnhTrong Catia co rt nhiu modul thit k cac san phm. Vi vy khi thit
k 1 san phm nao o, ngi ta thng tich hp nhiu modul lai vi nhau thit
k ra chi tit tt nht. Em chon tai ve t Audi R8 v Lambogini. Do 2 sn
phm ny u c cch lm tng t vi nhau v vy em xin trnh by cch thit k to
Audi R8.Sau y l 1 s hnh nh ca 2 t sau khi hon thnh bn v
Hnh 1: 3 hnh chiu ca t audi R8
Hnh 3: Bn v ca t Audi R8
Di y l 1 s hnh nh ca t lambogini sau khi c hon thin:
Hnh 4: Mt s hnh nh ca t lamboginiDo thi gian di m hai xe c cch
thit k ging nhau nn em xin trnh by cch v ca Audi R8, cch v ca
lambogini tng t nh vy.3. Kt cu chi tit ca xe Audi R8 cho vic v tr
nn n gin hn, em thit k t Audi theo cy th mc c dng nh sau:
Hnh 2: Cy th mc thit k ca Audi R8Vic s dng cy th mc thnh tho rt
tt cho vic thit k cc sn phm trong CatiaVy em s chia bi lm ca em
thnh cc phn v hon thin ra Audi R8Cc chi tit ca bn v c em vit trn cy
th mc
Chng 2. Thit k sn phm1.Thit k v xe ( giakhanh(Part1.1))u tin, y
l bc khi u chng ta thit k ra cc sn phm mi t hin nay.Bc 1: Chun b
file nh 4 hnh chiu ca t Audi R8
Hnh 2.1: Cc hnh chiu ca Audi R8Ta ct nh ny ra c 4 hnh chiu ca
n:Bc 2: a cc hnh chiu vo trong mi trng Catia. y d hnh dung em thc
hin bc ny trong Video 1.Bc 3: Ta s vo
inh Gia Khnh-KT C in t 1- K56
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