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一、前言使用超塑性合金进行塑性加工的事例有许多[1],但大多数是根据超塑性现象中的延展性大而采用板料进行拉伸成形,很少有用块料加工成形的[2]。对于普通金属材料,一般采用自由锻造或模锻加工成形,但这些方法需要几道工序,加工中还要退火,成本高。针对这些缺点,久能木研制了一种侧壁可动型冲孔加工法[3]～[5],但这种方法主要以冲孔为目的,所以制品的端部不做凹模,同时深底容器的成形也困难。本研究从超塑性合金的流动性好这一点出发,进行了超塑性合金的塑性加工试验,并试
I. INTRODUCTION There are many examples of plastic processing using superplastic alloys [1], but most of them are based on the ductility of superplasticity and are drawn and formed by sheet metal, ]. For ordinary metal materials, the general use of free forging or forging processing, but these methods require several processes, processing, but also annealing, high cost. In response to these shortcomings, Long Neng Mu developed a side wall movable type punching [3] ~ [5], but this method is mainly for the purpose of punching, so the end of the product is not concave, while deep Bottom container forming is also difficult. In this study, the superplasticity of the liquid from the point of view, the superplastic alloy plastic processing test, and test