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成形极限图及其影响因素
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英文标题： |
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作者：陈鹤峥 |
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单位： 北京航空学院704教研室 |
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出版年,卷(期):页码：1985,10(5):47-58 |
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摘要：
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<正> 一、概述利用板料的单向拉伸试验所得的机械性能指标来评定材料的成形性能,是一种最为简便的方法。材料的硬化指数n值大,应变分布比较均匀,有利于拉胀类零件的成形;厚向异性指数r值高,板材不容易变薄,深压延性能就好。但是,根据单向拉伸试验所提供的机械性能指标,只能定性地分析材料完成某一成形工序的难易,而不能直接用来估算具体零件冲压过程的成败。因此,以往
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参考文献：
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