During the forming process of square boxes ,blank shape and size are also important factors,in addition to material performance, forming features, mold state and lubricating conditions etc.
盒形件拉深成形过程中,除材料性能、变形方式、模具状态及润滑条件等外,毛坯形状与尺寸是直接影响其成形质量的一个重要因素。
参考来源 - 无凸缘低盒形件圆角区毛坯尺寸优化的研究There are many factors that influence the drawing process of automobile panels, such as the die face, blank properties, clearance between punch and die, the blank holder force, the blank shape, drawbeads, friction conditions and so on.
影响汽车覆盖件拉延成形的因素很多,如拉延型面、板料性能、凸凹模间隙、压边力大小、毛坯外形、拉深筋、摩擦润滑条件等等。
参考来源 - 汽车行李箱盖拉延毛坯设计及工艺优化·2,447,543篇论文数据，部分数据来源于NoteExpress
According to sheet metal deep drawing processes, many design methods for the blank shape have been presented.
毛坯外形的设计是金属板料成形的重要环节。
According to numerical analysis, the proper blank shape, the design of bend die and finished die structure were designed.
通过数值模拟提出了合理的自由锻制坯形状，弯曲模具和终锻模具结构的设计。
Inverse Approach has been selected to calculate the blank shape and independent finite element program has been developed.
以锥形盆为例，验证了根据有限元逆算法设计的毛料展开程序在毛料展开中的有效性和精确性。
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