The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 20, 1976
Filed:
Feb. 06, 1975
Applicant:
Inventor:
Kenneth Vincent Baker, Stillman Valley, IL (US);
Assignee:
Rockwell International Corporation, Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23P / ; B23K / ;
U.S. Cl.
CPC ...
219 / ; 7610 / ; 93 5 / ; 219 / ; 219 / ;
Abstract
An improved rotary cutting die and method of producing it are disclosed wherein a cylindrical die blank or support has a weld bead applied on its peripheral surface in a configuration corresponding to the design of the product to be formed. The weld bead is then ground to provide a working surface spaced a predetermined distance radially above the die blank surface whereupon the weld bead is electrical discharge machined to form the required cutting edges coincident with said working surface.