Metal deforming – By shot-blasting
Patent
1992-11-20
1994-01-11
Jones, David
Metal deforming
By shot-blasting
72319, B21J 100, B24C 500
Patent
active
052770486
ABSTRACT:
A process for cold working an elongated form of a steel alloy includes the step of forming a matte texture on substantially all of the surface of the elongated form. The matte texture is characterized by a plurality of random, minute, shallow indentations, uniformly distributed on the elongated form's surface. The process provides an elongated form of steel alloy that has a significantly improved capability to carry lubricant into a cold working tool or die, thereby benefiting the cold workability of the elongated form. An apparatus for carrying out the process according to the invention, in line with one or more other processing operations is also disclosed.
REFERENCES:
patent: 1914587 (1933-06-01), Wise
patent: 2239044 (1938-12-01), Leighton
patent: 4258084 (1981-03-01), Hayden, Sr.
M. Woelfel et al., "Glass Bead Impact Blasting", Metal Progress (Sep. 1982).
J. V. Skoff, "Lubricant Retention A Key to Better Tool Performance", Metal Stamping (Sep. 1986).
H. Steele Price, III. "Update on wet blast descaling and in-line coating", Wire Journal International (May 1985).
T. Fukuda et al., "In-Line phosphate coating method of cold-forging wire", Wire Journal International (Jul. 1985).
CRS Holdings, Inc.
Jones David
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