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一、前言 国内外关于ZnAl22合金的超塑性研究较成熟,报导的文章很多,在国内用其制作塑料模具也不乏其实例。本文主要介绍采用超塑方法和用ZnAl22合金制作冲裁模及其
I. Preface At home and abroad, the research on superplasticity of ZnAl22 alloy is relatively mature. There are many articles reported, and there are also many examples of plastic molds made in China. This article describes the use of super-plastic method and the use of ZnAl22 alloy blanking die and its production