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《Powder Metallurgy Technology》 1992-01
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DESIGN OF DIE FOR FORMING P/M PART WITH MULTI-PARALLEL HOLES

Wang Shiyuan (Chengdu Die and Mould Works, Chengdu 410061, China)  
This paper discribes the difficults for forming the P/M part with multi-parallel holes and for ejecting.By using a special design of the core rod, the ejector and other tool parts, not only direct forming,but also changing two time ejections to one can be realized with greatly increasing productivity.
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