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Technical Research of Combined Machining of TC4 Titanium Alloy by EDM Induced Controllable Combustion and Turning Dressing
Received date: 2013-01-22
Revised date: 2013-05-02
Online published: 2013-05-17
Supported by
National Natural Science Foundation of China (51175256,51205197);Aeronautical Science Foundation of China(2011ZE52060);Natural Science Foundation of Jiangsu Province (BK2011732).
Based on the flammability of titanium alloy, a new processing method for TC4 is proposed by combining the induction of electrical discharge with comburent oxygen and machining. The machining principle is that the controllable combustion induced by electrical discharge between the workpiece and combustion inducing electrode at the same time enables the turning tool to dress the combusted and softened layer of the workpiece formed by controllable combustion on-line. It establishes an inter-electrode dual dielectric discharge model of controllable combustion and turning dressing combined machining, analyses the gas and liquid dual dielectric liquid discharge mechanism between the combustion inducing electrode and workpiece, and compares the new method with electrical discharge machining and controllable combustion induced by electrical discharge machining. The test results show that the combined machining of controllable combustion induced by electrical discharge machining and turning dressing has the characteristics of high processing speed, good surface quality and low electrode wear.
CHEN Longhai , LIU Zhidong , QIU Mingbo , TIAN Zongjun , YIN Chunjing . Technical Research of Combined Machining of TC4 Titanium Alloy by EDM Induced Controllable Combustion and Turning Dressing[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2013 , 34(11) : 2626 -2634 . DOI: 10.7527/S1000-6893.2013.0251
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