Reliability of electrode wear compensation based on material removal per discharge in micro EDM milling

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Reliability of electrode wear compensation based on material removal per discharge in micro EDM milling

Authors
Publisher
Elsevier BV
Keywords
  • Wear
  • Micromachining
  • Electrical Discharge Machining (Edm)

Abstract

This paper investigates the reliability of workpiece material removal per discharge (MRD) estimation for application in electrode wear compensation based on workpiece material removal. An experimental investigation involving discharge counting and automatic on the machine measurement of removed material volume was carried out in a range of process parameters settings from fine finishing to roughing. MRD showed a decreasing trend with the progress of the machining operation, reaching stabilization after a number of machined layers. Using the information on MRD and discharge counting, a material removal simulation tool was developed and validated.

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