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:
Jul. 15, 1986
Filed:
Sep. 19, 1983
Martin Thoma, Munich, DE;
Paul Bunger, Munich, DE;
MTU Motoren- und Turbinen-Union Muenchen GmbH, Munich, DE;
Abstract
Paired metal force-transmitting machine elements are protected against fretting corrosion under dynamic or oscillating load or stress conditions by a protection layer between pairing surfaces, whereby a direct contact between these pairing or junction surfaces is avoided. The protection layer is a material having a different composition than that of the machine elements. The protection layer is applied between the paired surfaces and to at least one of the paired surfaces. The protection layer has a different crystal structure and a lower hardness than titanium material of which the machine elements are made. The protection layer is galvanically applied and is advantageously of copper, aluminum or silver, whereby the thickness is 5-50 .mu.m. In this way the fretting fatigue durability of machine elements made completely or partially of titanium materials is greatly improved in a simple manner.