求助大家。压这种圆弧，总是有回弹，上模大小该怎么计算啊
https://tb2.bdstatic.com/tb/editor/images/face/i_f09.png?t=20140803http://tiebapic.baidu.com/forum/w%3D580/sign=a261b9ef30c6a7efb926a82ecdfaafe9/e5184bfbfbedab64463f51f0b136afc379311e43.jpg?tbpicau=2023-09-06-05_66ab7c2c7f2a9485798e5808aa184030
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