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Owing to the high corossion resistance,high temperature resistance, and high specific strength, titanium alloy is used widely in aerospace industry. This experiment adapts the most applied Ti-6Al-4V in aerospace industry as the experiment- tal material and electrode in electrolyzed copper to discuss the characteristics of titanium alloy in microenergy electrical dischage machining . The experiments of microenergy electrical dischage are carried out with the methods of dielectric suspended unconductive electric powder and without powder, and the spindle orbiting or fixed. It mainly discuss the characteristics of micro energy machining such as surface roughness of workpiece,relative electrode wear ratio, and material removal rate to set up the complete microenergy machining conditions of Ti-6Al-4V to provide the industry as reference. From the results of the experiment, e machining methods getting the glossy surface is to adapt negative polarity of copper electrode, add no powder inelectric, set up the small discharge current and pulse duration , and use the orbiting head device at the same time.
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