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:
Dec. 23, 2003
Filed:
May. 28, 2002
Alfred Heimann, Aachen, DE;
Hegenscheidt-MFD GmbH & Co. KG, Erkelenz, DE;
Abstract
An apparatus ( ) for the deep rolling of recesses ( ) and radii of crankshafts ( ). The deep rolling is accomplished with the aid of deep-rolling rollers ( ) which, during revolution of the crankshaft ( ), penetrate into the recesses ( ) or radii of the crankshaft ( ) under application of a deep-rolling force and at an angle of approximately 35° and bring about a deformation in the crankshaft ( ) itself. According to the invention, the depth of penetration of the deep-rolling rollers ( ) in the crankshaft ( ) is measured in the radial direction and the magnitude of the deep-rolling force is regulated as a function of the measured penetration depth in such a fashion that in the course of at least one revolution of the crankshaft ( ) a plastic deformation corresponding to a predefined rolling depth is obtained at least at one of the two recesses ( ) or radii of a relevant journal bearing ( ) after the deep rolling.