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:
Feb. 06, 2001
Filed:
Mar. 16, 1999
Yea-June Day, Hsinchu, TW;
Jui-Fang Liang, Chang Hwa, TW;
Cheng-Fu Tsai, Hsinchu, TW;
Hsi-Pin Li, Hsinchu, TW;
Mu-Tian Yan, Hsinchu, TW;
Industrial Technology Research Institute, Hsinchu Hsien, TW;
Abstract
A method for solving the problem that the machining accuracy in a corner part or in a circular arc is reduced by the line flexure during the wire-cut electric discharge machining. In the method, the controller of the wire-cut electric discharge machine with a built-in function of measuring error of wire flexure, after the machining, a detection voltage of the machine detects the machined groove. If the wire electrode comes into contact with the workpiece, the short-circuit caused by the wire flexure in the corner part or in a circular arc is detected, and then the compensation value of the wire flexure is gradually changed to continue the groove detection until the wire electrode and the workpiece are not short-circuited and the groove detection stops. Then the wire flexure value in the corner part or in the circular arc is obtained to establish the machining parameter data of the machine to automatically compensate the wire flexure value in the following machining.