文章编号：1673-887X(2023)01-0012-04基于ProCAST的悬梁铸造模拟及工艺优化王孝国，刘挺，吴煜，李光耀，张龙海（山西农业大学农业工程学院，山西太谷030801）摘要利用ProCAST对机床悬梁的铸造工艺进行数值模拟分析，根据铸件充型和凝固的温度场、充型时间及缺陷分布，对初始铸造工艺进行优化。结果表明，铸件浇注时间为35s，初始方案中，原因是由于壁厚较大而导致冷却缓慢，使得金属液向先凝固的地方进行了补缩，导轨部分出现了较大面积的缩松、缩孔缺陷。通过在铸件侧表面施加6个侧冒口和顶部施加4个顶缩颈冒口进行补缩，在导轨面添加17块冷铁以激冷的方式减少铸件缩孔缩松问题。仿真结果表明，优化工艺有效抑制了铸件缩孔缩松的形成，提高了铸件质量，对悬梁的生产起到指导性作用。关键词铸造工艺设计；铸造工艺模拟；机床悬梁；铸造工艺优化中图分类号TG242.3文献标志码Adoi:10.3969/j.issn.1673-887X.2023.01.004CastingSimulationandProcessOptimizationofSuspensionBeamsBasedonProCASTWangXiaoguo,LiuTing,WuYu,LiGuangyao,ZhangLonghai(CollegeofAgriculturalEngineering,ShanxiAgriculturalUniversity,Taigu030801,Shanxi,China)AbstractAbstract：ThecastingprocessofthemachinetoolsuspensionbeamwasnumericallysimulatedusingProCASTtooptimizetheini‐tialcastingprocessbasedonthetemperaturefield,fillingtimeanddefectdistributionofthecastingfillingandsolidification.There‐sultsshowedthatthecastingpouringtimewas35s,andtheinitialschemeshowedalargeareaofshrinkageandshrinkagedefectsintherailsection,whichwascausedbyslowcoolingduetothelargewallthickness,makingthemetalliquidtomakeuptheshrinkagetotheplacewhereitsolidifiedfirst.Theshrinkageproblemwasreducedbyapplying6sideriseronthesidesurfaceand4topshrink‐ageneckriseronthetopofthecastingandadding17piecesofchilltotherailsurfacetostimulatethecooling.Thesimulationresultsshowthattheoptimizedprocesseffectivelysuppressestheformationofshrinkageholesandshrinkagelooseninginthecasting;im‐provesthequalityofthecasting,andplaysaguidingroleintheproductionofthesuspensionbeam.Keywords：castingprocessdesign,castingprocesssimulation,machinetoolsuspensionbeam,castingprocessoptimization传统砂型铸造因其过程为闭箱浇注，难以直接...
