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. 18, 2004
Filed:
Aug. 26, 2002
Applicant:
Inventors:
Assignee:
ZF Lemförder Metallwaren AG, Stemwede-Dielingen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21K 2/108 ;
U.S. Cl.
CPC ...
B21K 2/108 ;
Abstract
A process is provided for manufacturing a ball-and-socket joint housing by cold forming from a blank (R), which is preferably produced from a bar or wire material and is prepared for forming. A first axial depression ( ) with a diameter (D ) is first prepared by reverse cup extrusion. A second axial depression ( ) with a comparatively larger diameter (D ) is subsequently prepared in the axial depression ( ) by reverse cup extrusion. A diameter reduction (D ) also of the first axial depression ( ) is formed in some sections by the deformation of the material during the second reverse cup extrusion.