Comparative analysis of WEDM with different wire electrodes applied to cut titanium Ti6Al4V
 
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Mechanical Engineering, Wrocław University of Science and Technology, Poland
CORRESPONDING AUTHOR
Dariusz Poroś   

Mechanical Engineering, Wrocław University of Science and Technology, Ignacego Łukasiewicza, 50-371, Wrocław, Poland
Submission date: 2020-10-27
Final revision date: 2020-11-09
Acceptance date: 2020-11-12
Online publication date: 2020-11-29
Publication date: 2020-12-18
 
Journal of Machine Engineering 2020;20(4):116–125
 
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ABSTRACT
The machining of titanium alloys by traditional methods causes many disadvantages of both technical and economic nature. These materials are characterized by very low thermal conductivity and belong to hard to machine materials. When machining with conventional methods, there is a problem of chips thermal softening and increased tool wear. The aim of this article was to present the issue of wire electrical discharge machining of Titanium alloy Ti6Al4V. In particular, the comparison of brass wire and non-consumable molybdenum electrode and flushing techniques were analyzed. The relationship between the overheating of the machined surface layer and the magnitude of stresses and the formation of micro cracks on the machined surface was discussed. An attempt should be made to investigate how flushing efficiency affects the machined shape, structural changes and chemical composition of the titanium alloy’s surface layer.
 
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