Geometrical integrity of microholes drilled by conventional and micro electrical discharge machining

This paper discusses the comparison of geometrical integrity of microholes drilled by conventional and micro electrical discharge machining (EDM). The microholes were produced on beryllium copper alloy using tungsten carbide electrode of 500 μm diameter. The geometry and surface texture of the micr...

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Bibliographic Details
Main Authors: Ali, Mohammad Yeakub, Rosfazila, M. R., Rosnita, E.
Format: Conference or Workshop Item
Language:English
English
Published: CSREA Press 2008
Subjects:
Online Access:http://irep.iium.edu.my/28901/
http://irep.iium.edu.my/28901/
http://irep.iium.edu.my/28901/
http://irep.iium.edu.my/28901/4/28901_Geometrical%20integrity%20of%20microholes%20drilled_complete.pdf
http://irep.iium.edu.my/28901/5/28901_Geometrical%20integrity%20of%20microholes%20drilled_scopus.pdf
Description
Summary:This paper discusses the comparison of geometrical integrity of microholes drilled by conventional and micro electrical discharge machining (EDM). The microholes were produced on beryllium copper alloy using tungsten carbide electrode of 500 μm diameter. The geometry and surface texture of the microholes were investigated using scanning electron microscope (SEM) and surface profiler. The selected characteristics of geometrical integrity roundness, diameter enlargement, and taper angle were investigated and compared for microholes of different aspect ratios. The trend of geometrical characteristics were established for both conventional and micro EDM.