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首页> 外文会议>National Conference on Precision Engineering >Analysis of Die Clearance Distribution in a Presstool Assembly
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Analysis of Die Clearance Distribution in a Presstool Assembly

机译：压力机组件模具清关分布分析

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In the design of a precision presstool, it is necessary to assign tolerances to all dimensions. The combinations of these tolerances must be sufficiently tight to guarantee, that the tool will perform as intended. The quality of a presstool can be judged by the quality of the sheared surface of the blanked/pierced component. One of the critical parameter of the blanking/piercing operation is the die clearance. It is the diametrical clearance between the punch and die. Theoretically, the die clearance should be evenly distributed around the punch. But, when tolerances are assigned to various components of the presstool, uneven distribution of die clearance results, which affects the quality of the sheared surface. Experiments are conducted on samples with different die clearances. The samples are examined using microscope to determine the quality of the sheared surface. A mathematical equation is arrived to relate the dimensional tolerances of the presstool and the quality of the sheared surface on the samples.
机译：在精密液滴的设计中，必须将公差分配给所有尺寸。这些公差的组合必须充分紧张以保证，该工具将按预期执行。可以通过消隐/刺穿部件的剪切表面的质量来判断压液的质量。消隐/穿刺操作的关键参数之一是芯片间隙。这是冲头和模具之间的径向间隙。从理论上讲，芯片间隙应均匀地分布在冲头周围。但是，当分配耐池的各种组件时，模具清除结果的不均匀分布，这影响了剪切表面的质量。实验在具有不同模具间隙的样品上进行。使用显微镜检查样品以确定剪切表面的质量。到达数学方程，以涉及压力机的尺寸公差以及样品上的剪切表面的质量。

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