preform die shape design 预锻模形状设计
The key step in flashless forging is to optimize the design of preform die shape.
锻造过程实现净形和近净形制造最关键的一点是对预锻模进行优化设计。
The optimization procedure of preform die shape is given. The sensitivity of nodal velocity and temperature with respect to design variable is developed.
给出了模具形状优化设计步骤，推导了速度灵敏度方程和温度灵敏度方程。
This method can realize net shape forging by optimizing preform die shape. Flashless final forging with complete die fill and without folding-over defect can be obtained.
该方法通过优化设计预成形模具形状，可实现精形终锻，得到无飞边、完全充满型腔和无折叠的终锻件。
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