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:
May. 02, 1989
Filed:
Feb. 12, 1987
Applicant:
Inventors:
Takahisa Masuzawa, Kamakura, JP;
Shigenori Sakai, Tokyo, JP;
Assignee:
Research Development Corporation of Japan, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
B23H / ; B23H / ; B23H / ; B23H / ;
U.S. Cl.
CPC ...
20412943 ; 2041295 ; 2041297 ; 204D / ; 20412975 ; 2042 / ; 204275 ; 219 6917 ; 219 6912 ;
Abstract
A method and a device for finishing the cut surface of a work which is cut from a metal blank by a wire cut discharge process. The work and the waste piece of the metal blank are positioned in the same condition as just after the process. Electrolyte is fed through a clearance between the work and the waste piece and, at the same time, current is caused to flow from the work to the remainder. This subjects the cut surface of the work to electrolytic treatment to thereby make it smooth while removing oxide films and degenerated surface layers therefrom.