High-Speed EDM of Zn Alloy for Die Making-EDM Machinability and 3-D Contouring EDM by Wire Frame Electrode-

Minami, Hisashi; Masui, Kiyonori; Tsukahara, Hidekazu; Yamamoto, Tatsuya; Okami, Mitsuo

doi:10.2526/jseme.37.17

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2003

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“…Zinc alloy for die and mold named ZAPREC[l] has good machinability in EDM as compared with steel or aluminume alloys. High speed EDM can be expected under the low electrode wear conditions in roughing or finishing process, which is considered to be due to the obtaining of wide discharging gap and easy debris exclusion in EDM process [2].…”

Section: Introductionmentioning

confidence: 99%

EDM with Mesh-sheet Electrode

Lee¹,

Minami²,

Masui³

et al. 2003

IJEM

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This paper describes a new method ofEDM with mesh-sheet electrode. Mesh-sheet of copper wire has splendid advantages of electrode making with its high ductility and malleability. First, EDM properties of mesh-sheet to zinc alloy have been examined to use as an electrode of machining. Mesh-sheet electrode gives very stable process, since generated debris and gas are excluded quickly through the woven wires. The expectation of lower electrode wear ratio to workpiece was also confirmed experimentally. Comparing to usual solid electrode made it clear that this method was very efficient in terms of machining speed and process. FinaIIy, a practical machining by means of meshsheet electrode was tried to make 3-dimensional molding die.

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Section: Introductionmentioning

confidence: 99%