摘要:
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阐述了金属薄板的冲压成形方式、转变规律,以及基于不同破裂失稳形式的冲压成形性能分类方法。提出了非圆近似法、变形相似-简化仿形法和尺寸缩比法等3种设计冲压成形性能模拟试验的基本模式。同时,分析了当前主要模拟成形性能试验方法的类别,为修订GB/T 15825《金属薄板成形性能与试验方法》提供了试验方法选择与应用技术依据。
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The stamping formation modes of sheet metal,the relationship of the modes' conversion rule and the classification of the formability based on the different fracture's unsteady patterns were described.The simulating formability test methods such as the approximating method of simplifying non-cylindrical project to partial cylinder,the simulating-profiling method for the deformation and shape of projects,and the method of reducing project's dimension scale were proposed.There were three basic modes for the designing the simulating formability tests.Furthermore,various kinds of current test methods of sheet metal formability were analyzed,which could be used as the basis of selecting and applying test methods for revising GB/T 15825《Sheet Metal Formability and Test Methods 》.
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基金项目:
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国家标准化管理委员会标准修订项目(20064345-T-604)
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作者简介:
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参考文献:
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[1](苏)罗曼诺夫斯基ΒΠ著,梁炳文,迟家骏译.冷压手册(增订第2版)[M].北京:机械工业出版社,1957.
[2](苏)麦舍林ΒT著,梁炳文译.麦氏冷压手册[M].北京:国防工业出版社,1956.
[3]Yoshida K.Classification and systemalization of sheet press-forming process[J].Sci.Paper IPCR,1957,53(1514):125-187.
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