Investigation of the Effect of Process Parameters on Surface Roughness in Wire EDM of Titanium Alloy
Investigation of the Effect of Process Parameters on Surface Roughness in Wire EDM of Titanium Alloy
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DOI：
10.4028/www.scientific.net/amr.472-475.78
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发表时间：
2012-02
期刊：
影响因子：
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通讯作者：
M. Garg;Ajai Jain;G. Bhushan
中科院分区：
文献类型：
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作者：
M. Garg;Ajai Jain;G. Bhushan
研究了钛合金6-2-4- 2的电火花线切割加工，研究了脉冲开、关时间、峰值电流、火花间隙设定电压、走丝量、丝张力、水压、脉冲峰值电压和伺服进给等8个工艺参数对加工表面粗糙度和断丝率的影响。实验采用单因素一次法进行。此外，还进行了少量的随机试验，以精确地研究断丝现象。研究表明，脉冲开、关时间、峰值电流、火花间隙设定电压和丝张力对表面粗糙度有直接影响。送丝量、水压和脉冲峰值电压对表面粗糙度的影响很小。此外，断线主要由除峰值电流和脉冲峰值电压之外的所有参数决定。输入参数的最佳范围已被列入作为切割的最终结果，在表面粗糙度和最小化断丝频率。
This paper investigates the Wire Electric Discharge Machining of Titanium alloy 6-2-4-2.Eight process parameters namely pulse-on time, pulse-off time, peak current, spark gap set voltage, wire feed, wire tension, water pressure, pulse peak voltage and servo feed are varied to study their effect on surface roughness and wire breakage. The experiments are conducted using one-factor-at-a-time approach. Moreover, a few random experiments are also carried to study the phenomenon of wire breakage precisely. The study revealed that surface roughness is directly affected by the pulse-on time, pulse-off time, peak- current, spark gap set voltage and wire tension. Wire feed, Water pressure and pulse peak voltage have negligible effect on the surface roughness. Moreover, wire breakage is predominantly dictated by all the parameters except peak current and pulse peak voltage. An optimum range of input parameters has been bracketed as the final outcome for cutting in terms of surface roughness and to minimize the wire breakage frequency.