摘要
针对曲轴锻件材料利用率较低的现状,以某微车四拐曲轴为例,采用带阻力墙结构的模具来提高材料利用率。运用有限元分析软件Deform3D对预锻及终锻过程进行模拟。针对终锻载荷过大问题,将终锻模具阻力墙优化为分段式阻力墙结构,有效地降低了成形载荷。同时,对各方案的模具磨损进行了分析。实际生产表明:带阻力墙结构的锻模所生产的曲轴锻件质量良好、填充饱满,材料利用率由75.9%提高到83.3%,同时成形载荷适中。
Aimed at the low material utilization of crankshaft forgings, taking the crankshaft of minicar for example, using the die with resistance wall improved material utilization. The finite element analysis software Deform 3D was used to simulate the pre-forging and finish-forging process, and optimize the structure of resistance wall, finally the forming load effectively decreased; at one time, the die wear was analyzed at defferent schemes. The productive practice indicates that the forgings quality is qualified, and the cavity is fully filled, the material utilization ratio effectively increases from 75.9% to 83.3%, and the forging load is moderate.
出处
《热加工工艺》
CSCD
北大核心
2011年第23期231-234,共4页
Hot Working Technology
关键词
曲轴
材料利用率
阻力墙
模具磨损
crankshafts
material utilization
resistance wall
die wear
