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深入研究钣金加工

Time:2014-9-26 Click:2056次

   钣金加工成形工艺的设计涉及很多因素,如模具尺寸、毛坯形状、板料厚度、压边力、拉延筋抗力、摩擦、润滑等等。毛坯形状的确定是钣金成形工艺设计中的一个重要问题。如果毛坯形状合理,变形沿毛坯分布不均匀的现象就能够得到明显改善,成形极限也可有所提高,并能降低突耳高度,减少切边余量,节约材料,而且能减少甚至能免去后续的修边工艺,大大降低了生产成本;另一方面,合理的毛坯外形能改善成形过程中材料的应变分布,减少缺陷的产生,提高产品的质量。

    在生产实际中,有各种复杂形状的直、斜壁拉深件和复杂形状的覆盖件。当用冲压方法制造这类零件时,为确保制件质量和降低原材料消耗,使用合理尺寸和形状的板料毛坯十分必要。确定合理的毛坯形状并不容易,它是国内外学者长期努力探索研究的课题。尽管有很多学者一直在这方面进行探索,但因钣金成形是一个非常复杂的过程,影响成形的因素太多,因而至今未能得到满意的结果。

 

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标签:焊接件 激光切割件 金属结构件

本文由提供 激光切割折弯 上海激光切割 大型焊接件加工  铝合金激光切割的【上海田渡浜五金仪器厂】撰文,更多了解请关注http://www.tiandubang.com

 钣金加工

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