基于有限元法的双曲轴挤压铸造仿真及实验研究  

Simulation and Experimental Research of Double Crankshaft Extrusion Casting Based on Finite Element Method

作　　者：臧冠男[1] 张玉荣 

机构地区：[1]吉林广播电视大学,吉林长春130022 [2]北京科技大学材料学院,北京100083

出　　处：《热加工工艺》2018年第1期92-95,共4页Hot Working Technology

基　　金：吉林省职业教育与成人教育教学改革研究课题(2015ZCY336);吉林省教育科学规划课题(GH150804)

摘　　要：采用数值仿真及实验的方法研究了挤压压力对双曲轴挤压铸造成型的影响。结果表明：合理调节轴向进给量及挤压压力之间的关系可以提高曲轴成型合格率及生产效率;挤压压力为70MPa时,挤压铸造曲轴合格率较高;挤压压力较大时会导致曲轴零件壁厚变薄,使得曲轴零件在成形过程中容易破裂;挤压压力较小时,曲轴在成形过程中容易出现褶皱缺陷。经验证,实验结果与仿真结果基本一致。The influence of extrusion pressure on the extrusion casting forming of double crankshaft was studied by means of numerical simulation and experimental method. The results show that the reasonable adjusting the relationship between the axial feed and the extrusion pressure can improve the qualified rate of crankshaft forming and production efficiency; when the extrusion pressure is 70 MPa, the qualified rate of the crankshaft in extrusion casting is higher： When the extrusion pressure is large, the wall thickness of the crankshaft parts will be thinned, which will cause the crankshaft parts to break easily during the forming process; when the extrusion pressure is smaller, the wrinkling defects of the crankshaft easily occur in the forming process. It is proved that the experimental results are basically consistent with the simulation results.

关 键 词：双曲轴 挤压铸造成型 挤压压力 有限元仿真 实验研究 

分 类 号：TG249.9[金属学及工艺—铸造]