Wire cut electric discharge machine with machining state discrimination function

A discharge processing machine and state judgment technology, which is applied to electric processing equipment, metal processing equipment, circuits, etc., can solve problems such as difficult discharge detection, difficult processing state discrimination, and inability to use
CN101905360AActive Publication Date: 2010-12-08FANUC LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
FANUC LTD
Publication Date
2010-12-08

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Abstract

The invention provides a wire cut electric discharge machine with a machining state discrimination function. In a wire cut electric discharge machine, based on a voltage applied to a machining gap between a workpiece and a wire electrode, machining states are classified into at least three states of ''open'', ''discharge'', and ''short'' for each voltage application, and state discrimination signals corresponding to the respective states are respectively counted. Based on the counting results, an increase of a discharge gap, a reduction in a machining gap, retention of machining sludge, and so on are determined as machining states.
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Description

technical field

[0001] The invention relates to a wire-cut electric discharge machine, in particular to a wire-cut electric discharge machine with a processing state judgment function. Background technique

[0002] In electrical discharge machining, an arc discharge is generated by applying a voltage to an electrode and workpiece in a machining fluid. While the workpiece is melted by the heat of the discharge, the machining fluid is rapidly heated to cause gasification and explosion, and the melted workpiece is blown away. The workpiece is processed by repeating the above operations at high frequency. In addition, the small discharge traces generated by discharge gather together to form the processed surface, so the surface roughness is determined by the size of each discharge trace.

[0003] As a type of electrical discharge machining, wire-cut electrical discharge machining is known in which an AC high-frequency voltage is applied as an output voltage of a power supply b...

Claims

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