为解决某空调底盘成形过程中废料多的问题,利用有限元分析软件eta/DYNAFORM对空调底盘的坯料尺寸进行优化,得到了合理的坯料尺寸。用尺寸优化后的坯料模拟底盘成形过程,指导修边工序切刀的布置。通过模拟优化,减小了下料尺寸,切边工序由四周全切边改为局部切边,成形过程中减少了废料,提高了材料利用率。 In order to solve the problem of a lot of wastes in the forming process of an air conditioning chassis, the blank size of the air conditioning chassis is optimized by the finite element analysis software eta / DYNAFORM, and the reasonable blank size is obtained. Optimize the size of the blank to simulate the chassis forming process, guide trimming process cutter arrangement. Through the simulation optimization, reducing the cutting size, the trimming process from the four full trimming edge to partial trimming, forming process to reduce the waste, improve the material utilization.