Powder metallurgy processes – Powder metallurgy processes with heating or sintering – Powder pretreatment
Patent
1994-09-23
1996-01-09
Walsh, Donald P.
Powder metallurgy processes
Powder metallurgy processes with heating or sintering
Powder pretreatment
419 3, 419 5, 419 6, 419 8, 419 41, B22F 702
Patent
active
054826713
ABSTRACT:
A method is provided for manufacturing interlocking parts, in which at least one part is manufactured by powder injection molding. To compensate for the amount of contraction of one of the parts manufactured by powder injection molding and, if desired, to produce an additional clearance, a separation layer of plastic material is applied between the interlocking parts. After the injection process to form the separation layer, the separation layer and the binder are removed by a binder-removing and sintering process step. The method is also applicable to powdered metal extrusion for manufacture of double-layered metal parts.
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Plastverarbeiter 44, No. 3, 1993, "Spritzgiessen keramischer und metallischer Sinterformteile", pp. 108-112.
fischerwerke Artur Fischer GmbH & Co. KG
Greaves John N.
Striker Michael J.
Walsh Donald P.
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