Thiết kế máy tạo mẫu nhanh theo công nghệ DLP

NGHIEN CCfU-TRAO eOl THI^T Ki MAY TAO MAU NHANH THEO CONG NGHE DLP \ ' DESIGN OF 3D RAPID PROTOTYPING MACHINE USING DIGITAL LIGHT PROCESSING TECHNOLOGY Ding \ ^ Nghin', Nguyen Dinh Trong", Tran Hong Anh", Ngd Dieu Thach", Gia Xuin Long' Vien Co hpc va Tin hoc ijing dung TP H6 Chi Minh "Phong Thi nghidm Quoc gia Dieu khi^n so va Ky thuit he thong T6MTAT Bdi bdo ndy gidi thieu cdc ddc diem lich sit phdt trien, tdm quan trgng vdphqm vi ling dunglM.^ viec too mdu nlianh theo cdng nghe DLP Ndi dung chinh cud bdi bdo, trinh bdy nguyen ly hogt ddng, cdu true vd phdn tich lita chon cdc phUdng dn thiet ketrin cd sd cdc cum chde ndng ciia mdt mdy in 3D theo cdng nghe DLP Ddng thdi, trinh bdy ket qud thiit kicdc cum chde ndng cdng nhU kit qud chitgo ciid mot mdy tgo mdu nhanh tiieo cdng n^ DLP Tit kh6a; DLP, xU ly dnh sdng ky thudt so, mat ng chieu, stereolithagraphy, phdn tich, thiit kS hi thong tgo mdu nhanh Inthispaper,aliteraturereviewconcemingsomeaspectsoftheDigitalLightProcessingtechnologf such as the brief introduction, development history, same advantages and practical applications ill variousfieldsis presented The main content of this paper is that we present the principle, construe^ as well as analysing and choose the best design far a 3D Rapid Prototyping machine using DigM Light Processing technology We aba Implement some results of designed parts as well as manufactu machine ^ Keywordsi DLP Digital Light Processing, mask projection, stereolithagraphy, system design system analysis, rapid prototyping ISSN 0866 - 7056 TAP CHl CO KHl V I £ T NAM, Sd nam www.cokhivietnam.vn 2016 NGHIEN CO'U - TRAO D6\ l.GIGflTHlfiU day cua mdt Icfp va qua trinh dildc lap laL Cac Idp lien ket lai vdi khdi cho den Ngay nay, nhu cau tao nen mau san pham hoan san pham ban dau la mot nhu cau thiet yeu qua trinh san xuat, tnidc san xu& himg lo^t mot san pham nao cui^ phai can tao mau san pham tnidc de kiem tra tinh hien thifc va kha thi Ngoai ky thuat cd khi, cdng n ^ e cdn dilOc i3ng dung nhilu cdng nghe y sinh dac biet hdn niJa la cdng ngjie kim hoan va nganh Hang khdng vu tru Troi^ dd, phildi^ phap in 3D sii dung cdng ngh? xil ly anh sang ky thuat so DLP (Digital Light Processing) noi bat la mdt cdng nghe in 3D phat trien tU cdng nghe in 3D SLA vdi nhieu cai thien dang ke tren san pham ding nhil thdi gian O ^ • ti 1, Sii phat triln cdng nghi in 3D theo cdng n ^ DLP va sil xuat ban cac b ^ sang che hen quan den viec tao mau nhanh, i2ng dung cdng nghe DLP bat dau xuat hiln tii cudi nam 2001 vdi stf gia tang rd ret cac ho^t ddng xung quanh cdng nghi vdng 15 nam qua [ 1] Vdi nhilu dac tinh Uu viet vl chat Iil^ng mSu in, in 3D theo cdng nghe DLP da va dang dildc ling dung rdng rai Do dd, viec thiet ke chl tao mot may tao mau nhanh theo cdng nghe DLP rat dUdc quan tim hien Hinh Nguyen ly hogt ddng cua cdng nghi tgo mdu nhanhDLP 2.2 Cau true phan may Cau tnic ciia may tao mau nhanh DLP, gdm cd cac cum sau: Cum khung may, cum cung cap ngudn sang, cum nang theo tnic vk tam dd mau, cum di chuyen qua Iai theo true X, cum chufa dung dich nhUa Idng, ciim dieu khiln P H A N TfCH L U A C H O N PHlTCfNG A N 2.1 Nguyen ly hoat ddng Ttiong til nhil cong ngh| SLA, nhd vao tinh nhiet hda ran cna cac polymer cam quang dildi tac dung cua anh sang tia UV Dau tien, ngildi ta d^t thilt bi nang each be mat chat idng mot khoang bang vdi dp diy cua Idp vat Ii|u ^ u tiln (hJtc la Idp nam dildi cung) Sau dd, chum Hinh Cdu tnic mdy tia sang dil^c dieu khien bang may tinh thdng qua he thdng quet bang quang hoc se quit len bl 2.3 Phan tich, Iiia chon pfaiidng an mat theo nhiing tiet di|n ciia tili^ mat cat Vat lieu Idng bi tac ddng cua chum tia oic tim se Trong nhiing nam gan day, cac ddng may bj ddng dac lai Sau dd, cd can n a i ^ dildc dich in 3D theo cdng nghe DLP dang d\iac nghiin chuyoi Ien phia tren mdt doan dung bang chilu aiu va phat trien trln thl gidi, vdi mdt so ddng*^ ISSN 0866-7056 TAP CHI CO KHI VIET NAM, Sd nam 2016 www.cokfaivietnain.vn NGHIEN CU'U - TRAO B6\ may di& hinh vdi cac phiidng an thUt ke dildc thl hiln theo bang ma tran cac phiidng an lila chon nhil bang 1: Bdng I Ma trgn cdc phuang dn thiet ki mdy tgo mdu nhanh DLP Hinh Khung may hodn chinh 3.2 C^m ckp ngudn saog Yeu cdu ky thuat: Quang phd ngudn sdng phai cd birdc sdng phu hpp dk Iam hda ran nh\ra cam quang, cudng dp anh sdng d budc sdng d6 cac ddng may trln the gidi, nhdm tac gia chpn phai dap iing thdi gian chiiu yen c^u [6] phuong an thiet kl nhu sau: Khung nhdm dang Chpn may chilu nhan hilu Viewsonic hpp - Cum cSp ngudn sdng tu dudi Ien - Cum di chuyin qua I^i theo true X dupc truyln ddng PJD 7822HDL cua hSng \^ewSonic, dap ung cac ylu cdu kJ thu^t cimg nhu chi phi thdp Ben bang CO cau culit- Cum dirag nhua Idng sii dyng canh dd, cung chpn hudng bd tri ngudn sang ming phii FEP chdng dinh chieu tit dudi lln va lira chpn each chiiu tnrc tiip khdng thong qua hi thdng quang hpc di dem gian hda ciing nhu dl diiu khiin qud trinh in TINH TOAN THIJ&T KE mdu [7] Sau phan tich ma d^in QFD theo 3.1 Khung mky 3.3 Cym nSng h^ tryc Z Ylu cdu ky thudt: Khodng cdch djch Yeu cSu ky thuat: Dam bao dp cung vfing chuyin nhd nh4t cila cum true Z phai nhd hon cho mdy, trdnh cong vinh hay dao ddng chiiu day ciia Idp v|t lieu dong dac [4], dupc qud hinh v|n hanh mdy Dam bao dp vudng gdc, chpn d day la 0,05 -0,15 mm Ben c ^ do, cSn song song t^o diiu kiln Idp rdp cac bd phzin khdc dam bao dupc dp chinh xde v i dp vuong goc, song song cua kit cdu giiip ho^t d^ng dl dang vi de dang ddm bdo dupc dd chinh xac yeu cau cua vdt m ^ tgo dupc Sau da phan tich lira chpn, di don gidn, dl ddng Idp rdp va chinh siia cung nhu viec Thdng sd kich thudc v§t mlu dupc tao md rpng may sau ta chpn khung nhdm dinh bdi mdy tao mlu nhanh DLP: hinh de thiet kl khung may - Kieh thiidc v|t theo phUdng xyz: Bi ISSN 0866-7056 TAP CHl CO KHl VlfiT NAM, Sd ndm 2016 www.cokhivietnam.vn NGHIEN CU'U-TRAO eOl gidi han chien dong v i he thfing thau kinh [6], chon l i 115x65x250 (nun) - Dp day lijp tot nhat Bj anh hildn^ b i i phuong phip tii phii, phin giii truyen dong die tinh vat Ueu vi hudng chifii [6], chon l i 0,025nmi Tinh toin Id&n nghiem; Kiem nghiem momen ttnh tdc dgng len cum true Z: Hinh Sd chiu moment tinh cda cum true Z Set cic momen li,tc cum tryc Z chin tic difng theo ba phuong X,Y,Z: Moment chiu tii tinh cia c;mi true Z: ^ _5_ ^ ^ m- Ma = (P, + Pj).d=(5,24 + 27,2453).117.10' = 3,801 (N.m) "hit giy ra: nhanh cua cum tnjcZ: P, = m,.g = 2,7773x9,81 =27,2453 ( N ) ^ Thda mdn dilu kipn ben Kiem nghifm tai d^ng cho phep: Tdi dpng tinh toan cua true vit me dai dc bi la: Q = Q.IA = 41,203 X V1684-342 = 490,236 OV) < C„ = 1370 (ff) Trong dd: Tai trpng tuong duong: ? = J^ X ^ = 37,457 X 1 = 41,203 {N) [5] Vdi /^: Hp sd tai trpng,_/^ = - , [5] Lvrc dpc true: ^a = + ^?t = 4,968 + 32,489 = 37,457 OV) ISSN 0866-7056 T^CHfCOKHlVl|TNAM,Sd7nam2016 www.cokhivietnani.vn NGHieN c u u - T R A O B O I Tudi tho cua cum true Z: 0,815.9,8 = 7,987 N \ Trong dd: Khdi Iirpng ciia tdm di tren: m| = D,.V, = 2,7.18,3.33.0,5 = 815,265 (g) = 0,815 Vdi Z.^: Tudi thp ciia cum true Z (h); P^ = (kg) 10mm - Budc cua vit me (mm); /^ = 308,8mraTrong luong ciia be dimg dung dich: P^= Chieu dai hanh trinh lam viec (mm); n = 5880 sd nij.g = 0,909.9,8 = 8,908 N vdng quay (vdng/phut) i^ = ; I>,53E9»SEE:^ : = 1684,342 Qi) Trong do: Khoi luong ciia bS dung dung Thdi gian boat ddng tren ly thuyet cua djch: m, = D^.V, = 417x2,180 = 909,06 (g) = cym true 2; 0,909 (kg) / Cg \' ^ / 1370 \' Sd vdng quay cdn thiet tdi da cua true: 60v 60x0,98x1000 :j : © - = 5i80iv/ph) Hinh Sd tdc dung lUc len cd cdu culit —»• Thda diiu ki?n tdi trpng dpng Nhu hinh 7, ta thdy Iuc tdc dyng chii yiu dnh hudng din co cau culit Id lire ma sat trln Cum tryc X vdi chuc nang di chuyin qua trupt trln ray truot l^i de Iam diu dung dieh nhya Idng, h ^ chi hien -^ Fms, = FmSj = FmSj = Fms^ = (P, + ''' tupng dinh giita be va tdm giu mlu Ddng thdi, evim true X cd chuc ndng da be dung dung P,).f /4= (7,987 + 8,908).0,66/4 = 2,788N *., ; '.^ djch nh^ra Idng Vi vdy, cym true X bao gdm, cac Trong dd: bp phdn: Ray tnrpt, trupt, tay quay culit va P, = 7,987N ~ Trpng lupng cua tdm di tdm di tren; Cym di chuyen qua lai theo true X khdng Pj = 8,908 N - Trpng lupng ciia bi dyng ylu cdu dp chinh xde eao nln ed rdt nhiiu phuong dung dich; dn dl thiet ki cum di ehuyin qua Iai, nhimg ngirdi ta thudng diing hai ca cdu Id: Truyin dpng f - 0,66 - HI sd ma sdt tnrpt bdng culit kit hpp ray tnrpt va dpng co budc vd ray tnrpt (tra theo catalog ctia hang THK) , ho|e truyln dpng bdng dai rang kit hpp vdi Trln hinh 7, cd vi tri ca cdu cuht tdc tnrpt dan hudng vd dpng ca budc dyng nhiiu nhdt Id A, B, C, D, nhiing Iuc gay moment quay cho ca cdu culit la cac lyc tiep tuySn F^, Fg^,F^^,Fo^, ^^n nhihig lire di qua tam quay khdng gay moment quay cho culit nhu ^ A / S , ' ^C, Fq, Mat khac, tir bdn diim ta thdy diem B Id diem cd tac dung lire Idn nhdt anh -; hudng din ca cdu culit 3.4 Cum di chuyen qua lai theo true X T , t ,i Trpng lupng eua tam dl trln: P , = m , g = ~*^Bn ^ F"is, + Fms, + Fms, + Fms, = '• 2,788+ 2,788 + 2,788+ 2,788= I I,I52N ISSN 0866 - 7056 T4P CHf CO KHf V I £ T NAM, Sd nam www.cokhivietnam.vn 2016 NGHieNCCfU-TRAODOl B6 ca ciu cuht c6 the quay duoc thi moment quay phii Im hon moment luc ma KET LUAN VA HUOING PHAT TRIEN sit giy ra: Tren day, chung toi da trinh biy tSng quan ve hch su, tim quan trong, d6ng thoi trinh biy phuong phip tinh toan, thiet ke mot miy in -» De eo ciu culit co thg quay dugc thi 3D theo cdng nghe DLP Cu6i cung la dua ket moment giy cua dang co phii 14n hon M qui tinh toan thiet ke va mat vii mlu dugc in boi may Cin ti6p tuc cic nghien cuu chuyen sau KET QUA nhu: Sy anh huong cua eac thong sd cdng nghe Chiing toi da tinh toin, thift ke va che d&i chit lugng mlu m ve kich thudc va da ben tao thinh cong miy in 3D DLP voi cic thong s6 man tren cic loai vat lieu khac nhau, nghien cuu ky thuat chmh nhu sau: nang cao chinh xic mlu in, (N/m) ^„> M = F =11,152 0,065 = 0,725 - Kha I15x65x250mm; nang tjio miu tdi da: Nghien ciiu niy, dugc th^c hijn tai Phong Thi nghiem Trgng diem Qudc gia Di6u khien sd v i Ky thuat He thang, va dugc tii trg Dp chinh xic miu theo phuong boi Dai hoe Qudc gia TP He Chi Minh, d^ [00 nm; tai mang ma sd B2014-20b-0I.-> Do chfnh xic theo phuong Z: 25)im; Ngiy nhan bai: 24/5/2016 Ngiy phin bien: 24/7/2016 Tii lifu tham khao: Hinh 9: Mdu nhdn vgt dugc in bdi mdy [ ] Terry Wohlers; History of additive manufacturins 2014 12] Paulo Jorge Bartolo; Slereolilhography Materials Processes and Applications, Springer, 2011 [3] Philip Mark Hackney An Investigation into Ihe Characteristics of Material and Processes, for Ihe Produclion ofAccurate Direct Parts and Tools using 3D Rapid Pmlolying Technologies University of Northumbria, 2007 [4] Le Van Uyin, Vii Le Huy; Phmmg phdp tinh lodn_ thiet ki vd lira chon n-uyin dgng vilme-bi, Tuyen tap congttinhHpi nghi Co hpc toan qu6c, laii thu vm Hi Npi, thing 12/2007 [5] PGS.TS Nguyin Hihi LOc; Co so thiit ki mdy NXB Dai hpc Qu6c gia TP H6 Chi Minh, 2008 [6] Design Consideralions for Mask Projection Microslereoiilhography Systems [7] Reinout Holtmp Design and conslruclion of a rmilti-malerial 3D DIP printer Univeisity of Twente, 2015 ISSN 0866 7056 T4I> CHi CO KHi VitT NAM, Sa nam 2016 www.cokJiivietnaiii.vn ... mdu nhanhDLP 2.2 Cau true phan may Cau tnic ciia may tao mau nhanh DLP, gdm cd cac cum sau: Cum khung may, cum cung cap ngudn sang, cum nang theo tnic vk tam dd mau, cum di chuyen qua Iai theo. .. Uu viet vl chat Iil^ng mSu in, in 3D theo cdng nghe DLP da va dang dildc ling dung rdng rai Do dd, viec thiet ke chl tao mot may tao mau nhanh theo cdng nghe DLP rat dUdc quan tim hien Hinh Nguyen... O ^ • ti 1, Sii phat triln cdng nghi in 3D theo cdng n ^ DLP va sil xuat ban cac b ^ sang che hen quan den viec tao mau nhanh, i2ng dung cdng nghe DLP bat dau xuat hiln tii cudi nam 2001 vdi