Method for production of compacted powder metal parts

Method for production of compacted powder metal parts

  • CN 1,817,630 B
  • Filed: 12/19/2005
  • Issued: 06/27/2012
  • Est. Priority Date: 12/20/2004
  • Status: Active Grant
First Claim
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1. one kind through utilizing tool set to be made the method for fine and close part by dusty material;

  • Said tool set comprises the low punch that upper punch that upper die and lower die, at least one and said patrix link and at least one and said counterdie link, and said method comprising the steps of;

    (a) before powder filler, begin most with upper die and lower die orientate as be engaged in counterdie in low punch contact so that form the die cavity that is used to hold powder of basic contiguous patrix;

    (b) top surface through feed tank being moved mold and allow powder to fall into the die cavity that forms by upper die and lower die and low punch to fill said die cavity;

    (c) during filling said die cavity, relatively move upper and lower mould and low punch, so that because said relative motion and with in the part of powder through the said die cavity that attracts to draw in contiguous said counterdie downwards and form with powder;

    (d) powder in the said upper and lower die cavity of compacting through moving towards each other said upper punch and low punch;

    And(e) after compacted powder, mobile upper die and lower die make them away from each other so that make the demoulding of compacting part.

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