Performance Evaluation of Hybrid Abrasive Jet Electrical Discharge Machining (AJEDM)
A new technology in non-traditional machining that has been developed is the association oftwo or more machining process in only one. This worldwide tendency has been observed formore than a decade. For example, the Abrasive Electrical Discharge Grinding (AEDG), whichassociates the EDM process to grinding, showed good results to Metal Removal Rate (5 timeshigher), compared to the die-sinking EDM. This paper aims to develop and evaluate thehybrid machining process which associates EDM to Abrasive Water Jet Machining, calledAbrasive Jet Electrical Discharge Machining (AJEDM), especially the use of deionized wateras dielectric fluid as a replace alternative to the hydrocarbon fluids generally used asdielectric. These fluids are, in general, based on aromatic hydrocarbons derived from petrol,highly toxic and dangerous to the health of operators as well as to the environment. Theresults showed higher MRRs with the association of the EDM to the AWJM. The surfacegenerated by the hybrid process showed lower roughness compared to the other machiningconditions. The use of deionized water as dielectric fluids showed good technical performancefor the hybrid machining AJEDM, since the MRR was similar to that one obtained withhydrocarbon fluid on the die-sinking EDM.
Advisor:Alberto Arnaldo Raslan; Evaldo Malaquias da Silva; Wisley Falco Sales; Henara Lillian Costa; Fred Lacerda Amorim
School:Universidade Federal de Uberlândia
Source Type:Master's Thesis
Date of Publication:11/12/2007