Method of producing metallic sinter bodies, as well as sinter body in particular pressing tool
AssigneeFirma Ernst Winter & Sohn (GmbH & Co.)
InventorDietrich Borse
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Abstract
In accordance with a method of producing metal sinter bodies, the bodies are provided with degassing openings which are made preferably before sintering of an initial press body part.
Claims14
A method of producing hard alloy sinter bodies which form press tools in form of a plunger and a matrix with regions which are loaded higher and regions which are less loaded during use of the tools, the method comprising the steps of forming a press body;
- sintering the press body;
- and providing in the formed press body before said sintering degassing passages located in said less loaded regions and formed as blind openings for degassing the press body during the sintering.
A hard alloy sinter body which forms press tools including a plunger and a matrix for a pressing apparatus, the hard alloy sinter body comprising a body part having an outer side and a cross-section region which is less loaded and a cross-section region which is loaded higher during use of the tools, said body part having at least one degassing passage which opens on said outer side in said less loaded cross-section region and is formed as a blind opening for degassing the body part during sintering.
Dependencies are inferred from the claim text.