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针对滑套精锻成形中 ,存在的反挤压冲头弯曲失效及精锻件表面出现折叠等问题 ,建立了弹塑性热力耦合有限元模型。通过对滑套的镦挤和反挤过程进行数值模拟分析 ,找出了出现上述问题的原因 ,提出了改进措施
Aiming at the problems of bending failure of anti-extrusion punch and folding on the surface of precision forging, the elastic-plastic coupling finite element model was established. By numerical simulation analysis of the upsetting and anti-extrusion process of the sliding sleeve, the reasons for the above problems are found and the improvement measures