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:
Jan. 30, 2007
Filed:
Dec. 22, 2003
John B. Walenta, Peoria, IL (US);
Charles F. Berndt, Pekin, IL (US);
Thomas E. Clements, Peoria, IL (US);
Steven M. Cross, Peoria, IL (US);
Timothy M. Hoefft, Morton, IL (US);
Gary D. Keil, Hanna City, IL (US);
John B. Walenta, Peoria, IL (US);
Charles F. Berndt, Pekin, IL (US);
Thomas E. Clements, Peoria, IL (US);
Steven M. Cross, Peoria, IL (US);
Timothy M. Hoefft, Morton, IL (US);
Gary D. Keil, Hanna City, IL (US);
Caterpillar Inc, Peoria, IL (US);
Abstract
An article and method for forming an article having a hard-finished surface including a predetermined density of carbides to improve pitting and wear resistance and to significantly increase the overall life of the article. This method comprises selecting a carburizing grade material to form an article, carburizing the article to form a microstructure on at least one portion of the article having a predetermined density of carbides dispersed in the microstructure to a predetermined depth, quenching the article to form a hardened matrix dispersed with carbides and hard finishing the article to form the surface, the surface having at least approximately 20% by volume fraction carbides dispersed in the hardened matrix.