基于模块化工艺的壳型铸造工艺开发与改善

Development and Improvement of Shell Mold Casting Process Based on Modular Process

以某轿车的1.5L曲轴为例,介绍了基于模块化壳型铸造工艺对该曲轴进行了铸造工艺设计,同时结合MAGMA模拟软件进行了模拟优化,达到了从前期开发就做到预防和消除曲轴加工淬火裂纹的风险的目的。后续针对曲轴表面微观渣孔、微观缩松、表面铁素体以及珠光体不合格项等进行了持续优化改进,最终样件达到客户认可。

Taking a 1.5 L crankshaft of the car as an example,this paper introduces the casting process design of the crankshaft based on the modular shell casting process,and using MAGMA simulation software to optimize the casting process,so as to prevent and eliminate the risk of quenching crack in the crankshaft processing from the early development.The following debugging was carried out to optimize and improve the microscopic shrinkage,surface micro slag holes,surface ferrite and pearlite unqualified items of the crankshaft,and finally the samples were accepted by the customer.Based on the modularization process,the MAGMA simulation and continuous improvement can speed up product development,shorten sample delivery cycle,improve product quality and reduce development cost.