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一种锻件预成形设计的新方法刘庆斌，季忠，刘马宝，吴诗春为了在锻造过程中合理地分配金属，使金属在终段时完全充满模腔，不会出现缺陷，往往在终锻前进行一次或多次预锻，即预成形（Ｐｒｅｆｏｒｍｉｎｇ），而要进行合理的预成形设计，掌握金属流动规律是关键。从目前...
A New Method for Forging Pre-Forming Liu Qingbin, Ji Zhong, Maubao Wu, Wu Shichun In order to allocate metal reasonably during the forging process, the metal is completely filled in the cavity in the final stage without any defects. One or more pre-forging, that is, pre-forming (Preforming), and to conduct a reasonable pre-shaped design, grasp the law of metal flow is the key. From the current ...