Track chain link and undercarriage track roller having a...

Metal working – Method of mechanical manufacture – Combined manufacture including applying or shaping of fluent...

Reexamination Certificate

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Details

C029S557000, C305S192000, C305S194000

Reexamination Certificate

active

07657990

ABSTRACT:
Undercarriage assembly components of track-type machines having a PTA welded wear-resistant coating and methods for forming such coated undercarriage assembly components are disclosed. Bodies of the undercarriage assembly components, formed of an iron-based alloy, have a material PTA welded on a surface or into an undercut or channel of the iron-based alloy. A heat treatment of the formed component further hardens the body. The portion of the outer surface of the undercarriage assembly components having the wear-resistant coating corresponds to a wear surface of the component during operation of the endless track of the track-type vehicle.

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English Machine Translation of EP 0 302 988 A1.
Louis R. Hathaway, Ed., “Tires and Tracks, Fundamentals of Service,” Moline, II: Deere and Company (1986) pp. 47-67.
Patent Abstracts of Japan, vol. 2000, No. 15, Apr. 6, 2001, JP 2000 343129 A.

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