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:
Aug. 19, 1997
Filed:
Feb. 06, 1996
Applicant:
Inventor:
Josef Seyrkammer, Rustorf, AT;
Assignee:
Miba Sintermetall Aktiengesellschaft, Laakirchen, AT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B22F / ; B22F / ; B22F / ;
U.S. Cl.
CPC ...
419 29 ; 419 38 ;
Abstract
There is described a method of producing a cam for a jointed camshaft by sintering a compact made from a sintering powder, which is calibrated after sintering and then subjected to quenching and tempering. To avoid extensive rework, it is suggested that the compact be pressed, sintered and calibrated corresponding to a desired contour (4), which differs from the desired contour (1) of the cam contrary to the distortion (3) produced during quenching and tempering, and that the calibrated compact is then given the desired contour (1) of the cam due to the distortion (3) produced during quenching and tempering.