Composite cantilever arm for guiding a moving wire for electrical discharge wire cutting machine

摘要

PURPOSE: A wire guide arm device is provided to increase machining speed and machining precision of an electric discharge machining wire cutter by constituting the wire cutter into fiber reinforced composite materials such as graphite or Kevlar. CONSTITUTION: A wire guide arm device(104) comprises a tube(203) fabricated from graphite fiber reinforced or Kevlar fiber reinforced composite materials, a first flange(201) and a second flange(202) coupled to the tube and composed of steel iron or aluminum. A wire outlet is fixed to the first flange and a wire cutter body is fixed to the second flange. The first and second flanges are fixed to the wire outlet and wire cutter body with many bolts. In the wire guide arm device, a coupling portion fixed to the wire cutter body is so weak that a fiber reinforced composite material is further installed to the second flange.