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:
Feb. 13, 2007
Filed:
Feb. 11, 2002
Hans-peter Koch, Stuttgart, DE;
Jochen Winkler, Esslingen, DE;
Andreas Harzer, Schwieberdingen, DE;
Wolfgang Ballerstedt, Schoenebeck, DE;
Torsten Bober, Renningen, DE;
Hans-Peter Koch, Stuttgart, DE;
Jochen Winkler, Esslingen, DE;
Andreas Harzer, Schwieberdingen, DE;
Wolfgang Ballerstedt, Schoenebeck, DE;
Torsten Bober, Renningen, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A method for manufacturing a pressed part from a soft magnetic composite material. A starting mixture is provided that includes an iron powder and an auxiliary pressing agent. The starting mixture is pressed to form a pressed part and annealed at temperatures between 380° C. and 450° C. in a mixture of an inert gas and oxygen that has an oxygen concentration between 1% and 10% by volume. A second embodiment of a method for manufacturing a pressed part from a soft magnetic composite material in which a starting mixture is provided that includes an iron powder and an auxiliary pressing agent. The starting mixture is pressed to form a pressed part, annealed, and then postformed and re-annealed.