Method and device for wire electrical discharge machining

Abstract

A method for controlling a wire electrical discharge machining (WEDM) process, in which the wire traveling speed VW is adapted in-process, while cutting. The method for controlling a wire electrical discharge machining (WEDM) process according the invention includes adapting the wire traveling speed in-process, wherein the method comprises the steps of: determining the position of each discharge along the engagement line of a wire and a work piece; determining the size of a crater provoked at the wire by each discharge; creating a real time wire wearing model based on the position of each discharge along the engagement line of the wire and the work piece, and based on the size of the crater occurring at each said determined position of each discharge along the engagement line of a wire and a work piece, and based on the current wire traveling speed; and continuously comparing the wire wearing model with one or more wire wearing limits, and adjusting the wire traveling speed according to the comparison of the actual wire wearing model and the one or more wire wearing limits. The wire electrical discharge machining process is conducted with reduced wire consumption, safely, efficiently and profitably.

Dependencies are inferred from the claim text.