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Wire cut Electrical Discharge Machining

  • Author:naky
  • Source:www.diecastingpartsupplier.com
  • Release on:2014-12-23
Wire cut Electrical Discharge Machining

WEDM (Wire cut Electrical Discharge Machining, referred WEDM), sometimes also known as wire cutting . The basic
working principle is to use the continuous movement of the fine wire ( known electrode wire ) as an electrode ,
the workpiece is pulsed spark discharge erosion of metal , cut type .

WEDM addition to the basic features of EDM have , there are some other features : ① do not need to manufacture
complex shape of the tool electrode , can be processed in a straight line for the bus in any two-dimensional
surface. ② can cut a slit of about 0.05 mm . ③ process does not put all the excess material processed into
scrap , improve the utilization of energy and materials. ④ at low speed to go wire EDM wire electrode wire
cutting is not recycled , because the wire constantly updated , will help improve the machining accuracy and
reduce the surface roughness.⑤ WEDM achieve cutting efficiency is generally 20 to 60 mm2 / min , up to 300 mm2
/ min ; machining accuracy is generally ± 0.01 ~ ± 0.02 mm, and up to ± 0.004 mm; surface roughness generally
Rα2.5 ~ 1.25 microns up Rα0.63 micron ; cutting thickness is generally 40 to 60 mm , the thickness of up to
600 mm .

EDM wire cutting is mainly used for mold making, in the model , cam, forming tools, precision machining small
parts and special materials has also been increasingly widely used . In addition, when the trial motors,
appliances and other products , can be directly used wire cutting some parts , eliminating the need for time
stamping die manufacturing and shorten the trial period