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. 24, 2023
Filed:
Oct. 02, 2019
Caterpillar Inc., Peoria, IL (US);
Chandrasen Rameshlal Rathod, Peoria, IL (US);
Roger Lee Recker, Dunlap, IL (US);
Robert Jason Pickerill, Peoria, IL (US);
Scott E. Keele, Germantown Hills, IL (US);
Douglas Trent Weaver, Brimfield, IL (US);
Daniel Joseph Sordelet, Peoria, IL (US);
Caterpillar Inc., Peoria, IL (US);
Abstract
A steel track chain component, such as a track bushing, may be formed with a carburized portion, a hardface portion, and a core portion. The core portion may be softer than the carburized portion, which in turn, may be softer than the hardface portion. This configuration of the various portions of the component may allow for relatively high wear resistance of the component, as well as toughness. The core portion may be mostly ferrite crystal structure, while the carburized portion and the hardface portions may include martensitic and/or austenitic crystal structure. The carburized portion may be formed by carburizing the track chain component in a heated and carbon rich environment. The hardface portion may be formed by welding a hardface alloy over at least a portion of the carburized portion.