左诱导轮支架铸造工艺设计论文[带图纸].doc

哈尔滨工业大学华德应用技术学院毕业设计（论文）I摘要本文进行了左诱导轮支架零件的铸造工艺设计。ZG32MnMo左诱导轮支架选用砂型铸造，该铸件为两件小批量生产的大型件，且其形状、结构较复杂。通过分析该铸件结构，为简化铸造工艺,合理选择分型面。分型面的选择与浇注位置保持一致，避免合型后翻转砂箱。同时砂芯的形状、尺寸及在砂型中的位置符合铸件要求，在铸件形成的过程中砂芯所产生的气体能及时的排出型外，保证铸件的质量。为提高零件铸造的可行性、保证充型顺利，特开设一组直浇道、两组横浇道及内浇道。通过AutoCAD平面绘图，并用Pro/E三维实体造型，最终设计出了最佳的铸造工艺方案。关键词：工艺设计、铸造、实体造型、分型面哈尔滨工业大学华德应用技术学院毕业设计（论文）IIAbstractThisinducedwheelsupportfortheleftpartofthecastingprocessdesign.ZG32MnMoleftinducerbracketusedsandcasting,thecastingforthetwolargepiecesofsmallbatchproduction,anditsshape,structureismorecomplex.Byanalyzingthestructureofthecasting,tosimplifythecastingprocess,areasonablechoiceofparting.Sub-surfacelocationisconsistentwiththecastingchoice,avoidclosingoverturnedsandbox.Sandcorewhiletheshape,sizeandlocationofthelineinthesandcastingrequirements,inthecastingprocessoftheformationofthegasesproducedbysandcoretimelydischargetype,buttoensurethequalityofcastings.Toimprovethefeasibilityofcastingparts,toensureasmoothfilling,openaspecialsetofsprue,runnerandtwogroupswithintherunner.PlanethroughtheAutoCADdrawing,andusePro/Esolidmodeling,thefinaldesignofthebestcastingsolution.Keywords:processdesign,casting,thesolidmodeling,partingsurf哈尔滨工业大学华德应用技术学院毕业设计（论文）III目录摘要···········································································IAbstract·········································································II第1章绪论····································································11.1研究目的及意义·····················································11.2国内外铸造发展的状况············································11.2.1国内铸造工艺发展情况·····································11.2.2国外铸造工艺发展情况·····································21.3ZG32MnMo的性能及铸造工艺特点·····························31.4本设计的具体内容··················································41.5本章小结······························································4第2章ZG32MnMo左诱导轮支架的性能分析·························52.1ZG32MnMo的化学成分及力学性能····························52.2ZG32MnMo的熔炼工艺···········································52.3ZG32MnMo左诱导轮支架的技术要求·························62.3.1零件实体图···················································62.3.2主要技术要求················································82.4本章小结·······························································9第3章铸造工艺方案的确定·············································103.1零件结构的铸造工艺性··········································103.1.1左诱导轮支架的结构工艺性·····························103.1.2铸件质量对零件结构要求································113.2造型、造芯方法的选择··········································113.3浇注位置的确定····················································123.4分型面的选择·······················································133.5砂箱中铸件数目的确定··········································143.6本章小结····························································14第4章砂芯设计及铸造工艺参数设计·································154.1砂芯、芯头的设计················································154.1.1砂芯数量的确定···········································154.1.2砂芯的固定和定位·········································16哈尔滨工业大学华德应用技术学院毕业设计（论文）IV4.1.31#砂芯的设计与校核······································174.1.42#砂芯的设计与校核······································184.1.53#砂芯的设计与校核······································204.1.64#砂芯的设计与校核······································214.1.75#砂芯的设计与校核······································234.2铸造工艺设计参数················································244.2.1铸件尺寸公差··············································254.2.2机械加工余量··············································254.2.3铸造收缩率·················································264.2.4起模斜度····················································264.2.5最小铸出孔及槽···········································274.2.6分型负数····················································274.3本章小结·····························································29第5章浇注系统及冒口的设计··········································305.1浇注系统的类型及选择··········································305.2浇注时间的确定···················································305.3确定浇口比及各浇道的设计与计算···························315.3.1确定浇口比·················································315.3.2阻流截面积计算···········································325.3.3各浇道的设计与计算······································325.4冒口的设计与计算·················································345.5本章小结·····························································34第6章铸造工艺装备的设计·············································366.1模样的设计·························································366.1.1模样材料的选择···········································366.1.2模样的尺寸和等级·········································366.1.3木模的坯料拼接···········································376.2芯盒的设计·························································376.2.1芯盒材料的确定及结构形式·····························376.2.2木质芯盒的结构设计······································376.3砂箱的确定·························································386.4铸件的后续处理···················································386.5本章小结····························································38哈尔滨工业大学华德应用技术学院毕业设计（论文）V结论·········································································38致谢·········································································40参考文献······································································41