Basic rules for rheologic forging process of semisolid alloy
Basic rules for rheologic forging process of semisolid alloy
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发表时间：
2004
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通讯作者：
ShumingXing;LizhongZhang;JianboTan;ChuanlinZheng;HanwuLiu;Pengzhang;YunhuiDu
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文献类型：
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作者：
ShumingXing;LizhongZhang;JianboTan;ChuanlinZheng;HanwuLiu;Pengzhang;YunhuiDu
半固态模具锻造是半固态加工的主要类型，既不同于传统的模具锻造，也不同于传统的永久铸造。然而，由于缺乏有效的工艺设计和控制规则，在工件中经常出现加工缺陷。本文在大量的研究和实验的基础上，提出了工艺设计和控制的基本原则，即最短流动长度、压力填充和最小升模压力。给出了填充压力、成型压力、锁模压力等主要工艺参数的确定公式，用于工艺设计和控制。通过半固态锻造工艺生产的几个实际工件，实验证明了公式的有效性和适用性。
Semisolid mold forging is a major type of semisolid processing, which is different from neither traditional mold forging nor traditional permanent casting. However, processing defects are often seen in work pieces because of lacking available rules for the process design and control. Some basic rules for the process design and control, simply named the shortest flowing length, pressure filling and the minimum uplifting mold pressure, are advanced in the paper based on amount of researches and experiments. The equations to determine the major process parameters are given out such as the filling pressure, forming pressure and locking mold pressure for the process design and control. The rules and equations are experimentally proved available and applicable by several actual work pieces produced by the semisolid forging process.