Sintered alloys for cam lobes and other high wear articles

Details Sintered alloys for cam lobes and other high wear articles Sintered alloys for cam lobes and other high wear articles

2008-01-01

2008-01-01

Mai, Ngoclan T. (Department: 1742)

Specialized metallurgical processes, compositions for use therei

Compositions

Consolidated metal powder compositions

C419S026000, C419S029000

Reexamination Certificate

active

07314498

ABSTRACT:
An iron-based sintered powder metal article for cam lobe and other high temperature, high wear applications requiring excellent net-shape stability during sintering comprises a powder metal mixture consisting essentially of, by weight, 0.5–3.0% Mo, 1–6.5% Cr, 1–5% V, and the balance Fe and impurities. These articles also have a carburized case having 0.7–1.2% C by weight. Following carburization of the case, the articles are quenched to form a martensitic matrix having a network of disbursed carbides of Cr and V. The resulting sintered articles have good mechanical strength and wear resistance and possess excellent machineability and dimensional stability.

REFERENCES:
patent: 2333573 (1943-11-01), Kalischer
patent: 3698877 (1972-10-01), Motoyoshi
patent: 4230506 (1980-10-01), Clark
patent: 4243414 (1981-01-01), Takahashi et al.
patent: 4783898 (1988-11-01), Kanamaru et al.
patent: 4829950 (1989-05-01), Kanamaru et al.
patent: 4870931 (1989-10-01), Nakamura et al.
patent: 4969262 (1990-11-01), Hiraoka et al.
patent: 5476632 (1995-12-01), Shivanath et al.
patent: 5540883 (1996-07-01), Jones et al.
patent: 5613180 (1997-03-01), Kosco
patent: 5659873 (1997-08-01), Seyrkammer
patent: 6123748 (2000-09-01), Whitaker et al.
patent: 6338747 (2002-01-01), Kosco
patent: 6473964 (2002-11-01), Anderson et al.
patent: 6632263 (2003-10-01), Nigarura et al.
patent: 2001/0012490 (2001-08-01), Yamauchi
patent: 2003/0029272 (2003-02-01), Vidarsson et al.
patent: 2 187 757 (1987-09-01), None
patent: 2 298 869 (1999-09-01), None
patent: 357108246 (1982-07-01), None
patent: 61044152 (1986-03-01), None
Chatterley, T.C., “Cam and Cam Follower Reliability,” SAE Paper 885033, 1988.
Nakamura, Yoshikatz; Egami Yasuyoshi, “Development of an Assembled Camshaft by Mechanical Bonding” SAE Paper 960302, 1996.
Wilkes, F.C. “Summary Report on the Performance of a Number of Cam and Cam Follower Material Combinations Tested in the MIRA Cam and Follower Test Machine,” Mira Report No. 3 1970.

Affiliated with

Also associated with

Rating

Sintered alloys for cam lobes and other high wear articles does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Sintered alloys for cam lobes and other high wear articles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sintered alloys for cam lobes and other high wear articles will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2813257