426 ワイヤ放電加工におけるワイヤ傾斜角度のインプロセス測定(OS-2 放電加工)

Abstract

The accuracy of wire EDM process is affected by the wire orientation. For high accuracy of wire EDM process, the wire orientation should be controlled accurately. However, the wire orientation does not always coincide with the ideal orientation, because of the process reaction force, deformation of the wire due to stiffness, and clearance between the wire guide and wire. For the purpose of improving the accuracy in taper cutting, the wire orientation should be compensated based on measurement of the wire orientation. Thus, an in-process measurement was conducted using two optical displacement sensors newly developed. From the results, it was found that the in-process measurement is possible and the machined surface shape can be estimated from orientation measured.