Surface strengthening method

Details Surface strengthening method Surface strengthening method

2006-07-05

2010-11-23

Kornakov, Michael (Department: 1714)

Coating processes

With post-treatment of coating or coating material

Solid treating member or material contacts coating

C072S324000, C072S344000, C072S364000, C148S537000, C148S624000, C148S651000, C148S902000, C384S045000, C384S492000, C384S907100, C427S318000, C427S355000

Reexamination Certificate

active

07838075

ABSTRACT:
A method for strengthening a surface of a metal member. The method includes the following steps in the sequence set forth: (a) coating the surface of the metal member with a carbon-based film having a thickness of not smaller than 0.2 μm; and (b) repeatedly applying a pressing force onto the surface of the film-coated metal member in a condition of maintaining a contact pressure of not lower than 2.5 GPa at the surface of the film-coated metal member.

REFERENCES:
patent: 4258084 (1981-03-01), Hayden, Sr.
patent: 4553417 (1985-11-01), Badger
patent: 5288556 (1994-02-01), Lemelson
patent: 5881594 (1999-03-01), Hughes et al.
patent: 6874942 (2005-04-01), Yamamoto et al.
patent: 7111395 (2006-09-01), Sandner
patent: 2003/0099416 (2003-05-01), Kinno et al.
patent: 2005/0016444 (2005-01-01), Franz et al.
patent: 2005/0213860 (2005-09-01), Zhou
patent: 0 573 722 (1993-12-01), None
patent: 3212433 (2001-07-01), None
patent: 2004-10923 (2004-01-01), None
Japanese Industrial Standard “High carbon chromium bearing steels”, JIS G 4805 (1999) (pp. 1-31).
Japanese Industrial Standard “Chromium Steels”, JIS G 4104 (1979) (pp. 1-9).
Japanese Industrial Standard “Chromium Molybdenum Steels”, JIS G 4105 (1979) (pp. 1-11).
V.M. Shlyakhovs, “Broach burnishing tube sizing—uses coolant fed along tube length with temp. on tube external surface in deformation zone below that of initial transformation”, Database WPI Week 198329, Thomson Scientific, London, GB; AN 1983-715916 XP-002499604 & SU 958 016 A, Sep. 15 1982, 1 pg.
Masao Kumagai et al., “Improvement of Rolling Contact Fatigue by DLC Coating”, Journal of the Surface Finishing Society of Japan, vol. 57, No. 6 (2006), pp. 428-433.
Yakabe Fumiya et al., “Influence of hard film on pitting resistance of carburized steel for gear wheel”, Synopses of Tribology Symposium held under Japanese Society of Tribologist, vol. 11 (2005), pp. 65-66.
Yakabe Fumiya et al., “Surface fatigue of SCr 420 on which hard film is formed upon carburization”, Synopses of Symposium held under the Japanese Society of Heat Treatment, vol. 16 (2005), pp. 3-4.

Affiliated with

Also associated with

Rating

Surface strengthening method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Surface strengthening method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Surface strengthening method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4163864