The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 08, 1990
Filed:
Feb. 27, 1989
Applicant:
Inventor:
Manfred Weber, Witten, DE;
Assignee:
Sintermetallwerk Krebsoge GmbH, Radevormwald, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22F / ;
U.S. Cl.
CPC ...
419 27 ; 419 28 ;
Abstract
A method of producing powder forged components produces parts which precisely fit together, the method including the steps of: forming a one-piece preform by pressing from powder; forming at least one tear notch in the preform at a selected location; sintering the preform; providing a protective layer on each tear notch; forging the preform into a component, including closing each tear notch during the forging to form a corresponding slit; cooling the component; and separating the component at the corresponding selected location into a plurality of individual parts by breaking.