Metal deforming – Process – Coiling and/or twisting
Reexamination Certificate
2003-09-29
2009-12-29
Tolan, Edward (Department: 3725)
Metal deforming
Process
Coiling and/or twisting
C072S064000, C072S342500, C148S643000
Reexamination Certificate
active
07637136
ABSTRACT:
A method of working metal in which the microstructure of metal body is rendered fine to thereby enhance the strength, ductility or homogeneity thereof; a metal body obtained by the metal working method; and a metal-containing ceramic body obtained by the metal working method. In this metal working method, the deformation resistance of metal body or metal-containing ceramic body (hereinafter referred to simply as “metal body”) is lowered locally to thereby form low deformation resistance regions in the metal body, and shear deformation of the low deformation resistance regions is effected so as to fine the microstructure of metal body. In particular, the metal body is formed in unidirectionally drawn configuration so as to produce low deformation resistance regions crossing the metal body. Further, with respect to two non-low deformation resistance regions arranged to sandwich low deformation resistance region crossing the metal body, one non-low deformation resistance region is caused to have a relative position change to the other non-low deformation resistance region so as to effect shear deformation of the low deformation resistance region. The low deformation resistance regions can be moved along the direction of drawing of the metal body.
REFERENCES:
patent: 2227476 (1941-01-01), Williams et al.
patent: 2738576 (1956-03-01), Frokjaer-Jensen
patent: 2767767 (1956-10-01), Peterson
patent: 3534574 (1970-10-01), McMaster
patent: 3622404 (1971-11-01), Thompson
patent: 3902344 (1975-09-01), Stuart
patent: 4007616 (1977-02-01), Aleck
patent: 4062216 (1977-12-01), Hanamoto et al.
patent: 4122700 (1978-10-01), Granzow
patent: 4140553 (1979-02-01), Deguchi
patent: 4163380 (1979-08-01), Masoner
patent: 4437329 (1984-03-01), Geppelt et al.
patent: 4727641 (1988-03-01), Kanatani et al.
patent: 5039356 (1991-08-01), Weiss et al.
patent: 5252152 (1993-10-01), Seror
patent: 5284534 (1994-02-01), Mendes
patent: 5345799 (1994-09-01), Miodushevski et al.
patent: 6221178 (2001-04-01), Torizuka et al.
patent: 6334350 (2002-01-01), Shin et al.
patent: 6348108 (2002-02-01), Yusa et al.
patent: 6718809 (2004-04-01), Utyashev et al.
patent: 6726085 (2004-04-01), Litwinski et al.
patent: 6742374 (2004-06-01), Ozawa
patent: 6866180 (2005-03-01), Mahoney et al.
patent: 6932876 (2005-08-01), Statnikov
patent: 6954679 (2005-10-01), Takeda et al.
patent: 6976380 (2005-12-01), Hartwig et al.
patent: 7115177 (2006-10-01), Appel et al.
patent: 2002/0079351 (2002-06-01), Mishra et al.
patent: 2006/0157168 (2006-07-01), Nakamura et al.
patent: 610 277 (1935-03-01), None
patent: 898 923 (1953-12-01), None
patent: 59-199517 (1982-07-01), None
patent: 57-137030 (1982-08-01), None
patent: 61-199540 (1986-09-01), None
patent: 64-62224 (1989-03-01), None
patent: 3-180214 (1991-08-01), None
patent: 6-7833 (1994-01-01), None
patent: 11-51103 (1999-02-01), None
patent: 11-323481 (1999-11-01), None
patent: 2000-239772 (2000-09-01), None
patent: 2001-321825 (2001-11-01), None
patent: 2002-102982 (2002-04-01), None
Horita Zenji
Kaneko Kenji
Nakagaki Michihiko
Nakamura Katsuaki
Neishi Koji
Jordan and Hamburg LLP
Rinascimetalli Ltd.
Tolan Edward
LandOfFree
Method of working metal, metal body obtained by the 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 Method of working metal, metal body obtained by the method..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of working metal, metal body obtained by the method... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4119333