基于曲面離散化方法的模具型面毛坯快速制造裝備研究.pdf

1、湖南大學(xué)碩士學(xué)位論文基于曲面離散化方法的模具型面毛坯快速制造裝備研究姓名：莫旭輝申請學(xué)位級別：碩士專業(yè)：車輛工程指導(dǎo)教師：鐘志華楊沿平20050420基于曲面離散化方法的模具型面毛坯快速制造裝備研究IIAbstractWiththecompetitionofmotbusinessbecomesmemefuriousthroughoutthewldthekeywinsthecompetitionistoproducenewpatterns

2、inshttermsothetechnologymakingmouldsfvehiclebodyisafocusofcompetition.Inthisdissertationarapidmanufacturetechniquefroughmouldssurfacebasedontheprincipleofdiscretizationisproposed.Aindepthstudyofthistechnologyisalsodiscus

3、sed.Byapplicationofthistechnologyroughmouldsareproducedasfollowswithouttraditionalfoundrytechnics：FixingtheDiscreteSurfaceMould(DSM)inthepressmachinefmingheatedthicksteelplateintomouldsurfacebytheDSMthenweldingthefmedmou

4、ldsurfaceintothemouldbracket.DSMthemanipulatfthepinliftsofDSMarekeyequipmentinthistechnology.LargenumbersofpinliftsarecloseknitregularlylocatedinthetoppedestalthebottompedestalofDSM.Changingtheheightofpinliftsbyadjusting

5、thescrewthreadthepinliftscansimulatevarioussurface.Researchthedisttionofmetalfrommicrocosmicmacrocosmos.Someconclusionscanbegainedbydiscussingtemperaturevelocityofdisttiontotheeffectofdisttionitsstresswhichisthereference

6、tochoosingthetemperaturethevelocityinpractice.Basedontheprincipleofdiscretizationtomanufactureroughmouldsurfaceanewstaggerlayoutofpinliftsisputfward.Throughtheanalysisoptimizationoftheratofmouldsurfacediscretizationthesp

7、acebetweenpinliftsthedistanceofstaggerlayout.Theratofmouldsurfacediscretizationinthetechnologycanbeimprovedontheconditionofnotincreasingitseconomictechnicalcost.Inotherwdstheprecisionofimitationmanufacturecanbeimprovedas

8、also.Throughthesystemicanalysisofwarpinthetechnologythesourceofwarpthesizeofwarpthewayofavoidingwarparediscussedindeepresearch.Aftertheoptimizationtheprecisionofmouldsurfacecanbeimprovedintoanothernewlevel.Asaresulttheov

9、erplusofroughsurfacetomillingmachinethecostaredecreased.Mostimptanttheresultisavaluablereferencetochoosingthethickofroughplate.Thistechnologyhasbeenapplinginproducingroughmouldsurfacefthebodyofrhombicconceptionvehiclewhi