辅变风机拉深翻边成形工艺分析及模具设计

:20091221:(1958-),,:10014934(2010)04002203伍楚晋(,037038):根据工件的形状和精度要求,对拉深翻边成形件的结构及成形进行了工艺分析介绍了拉深翻边成形工艺及模具设计模具结构工作过程和必要的计算等模具设计上采用了许多新颖的结构,巧妙地解决了拉深翻边成形过程中的一些难题,提高了生产效率,保证了零件形状及精度要求:拉深翻边;成形工艺;一次成形;模具结构;模具设计:TG386:BAbstract:Accordingtotheshapeandaccuracyrequirementsofcoolingfanwithauxiliaryconverter,thestructureandthetechnologyfordrawingandflangingformationisanalyzed.Inthisarticle,thetechnologicalprocessfordrawingandflangingformation,itsdiedesign,diestructureandthenecessarycalculationisdescribed.Thediestructurehasanumberofnewfeaturesincludingaclevermechanisminventedtosolvesomeparticulardrawingproblems.Withthesenewstructures,notonlytheproductionefficiencyisimproved,butalsotheshapeandaccuracyrequirementsareguaranteed.Keywords:drawingandflanging;formingprocess;directforming;diestructure;diedesign01HXDQ235A,2mm,40,R55mmR35mm2,,1,,,,,,,,,122DieandMouldTechnologyNo.420101,,,12,,,,1,,,,,Ra1.6m,,1122.12,,(),,,,,,,,1.2.3.4.5.616.7.8.9.10.11.12.13.14.15.22.2(1),4,,,(2),,,,(3),,,,,(4)8,,4,,(5)2,,,2.32.3.1工件翻边前预制孔直径d=d-2(H-0.43r-0.72t)(1)=322-2!(68-0.43!35-0.72!2)∀219mm:d###d###()H###r###232010.No.4t###2.3.2工件毛坯直径,3,:F=f1+f2+∃+f6=2%lx(2):F###f1f2f6###l###x###%lx=68.3!302+38!249.5+66!207.3+49.8!172+27!166+107.5!54.3∀62674mm2,D=8%lx(3)=8!62674∀708mm3,32.4(1),(4)P=d1tbk3(4)=3.14!496!2!47!0.6∀820kN:P###d1###t###b###k3###(2),(5)Q=4[D2-(d1+2r)2]q(5)=4[7082-(496+2!52)2]!3∀330kN:Q###D###d1###r###q###(3),(6)P=1.1ts(D-d)(6)=1.1!3.14!2!24!(496-219)∀46kN:P###t###s###D###d###(4),,,(7)PP+P=820+46=866kN(7):P###P###P###,,3000kN3,,,,(下转第54页)24DieandMouldTechnologyNo.42010106(1),,,,,(2),,:[1],.[J].,2007,42(6):1417.[2],,,.[M].:,2005.[3].[M].:,2003.[4]WangNM.Amathematicalmodelofdrawbeadforcesinsheetmetalforming[J].JournalofAppliedMetalworking,1982,2(3):193199.[5],,,.CAE[J].,2004,26(1):7377.[6].CAE[M].:,2005.[7],,,.[J].,2008(3):5658.(上接第24页),,,,,,:[1].[M].:,1983.[2].[M].:,1983.[3],.[M].:,1991.[4].[M].:,1988.[5].[M].:,2004.(上接第36页)[2],,,.[J].,1999,25(2):108112.[3].[J].,2007,33(6):3739.[4],,.55CrSi[J].,2003,12(3):18091811.[5],,.[J].,2001,26(9):4748.[6].[J].,2002,17(4):811.54DieandMouldTechnologyNo.42010