工艺参数对短电弧-电化学复合加工表面质量的影响研究
Effect of Process Parameters on Surface Quality of Short Electric Arc-Electrochemical Hybrid Machining
代向宇 1胡国玉 1周建平 1张儒 1王家豪1
作者信息
摘要
针对传统短电弧铣削加工后表面存在热损伤层问题,在钛合金TC4 上进行了短电弧-电化学复合加工试验研究,分析了短电弧-电化学复合加工的材料去除机制,并通过理论模型分析了影响复合加工快慢及表面质量的关键影响参数,即加工电压、工作介质电阻率和进给速度.通过单因素试验研究了关键参数对短电弧-电化学复合加工表面质量的影响.试验结果表明,利用短电弧-电化学复合加工底面间隙电化学效应可以很好地去除短电弧加工后表面热损伤层.在进给速度为 4 mm/min时可以实现无热损伤层加工,加工效率为 354 mm3/min,加工表面粗糙度Sa为17.982 μm.
Abstract
Aiming at the problem of thermal damage layer on the surface after traditional short electric arc machining,the short electric arc-electrochemical hybrid machining of titanium alloy TC4 was studied,and the material removal mechanism of short electric arc-electrochemical hybrid machining was analyzed.The key parameters affecting the composite machining speed and surface quality were discussed through theoretical models.That is,the processing voltage,the resistivity of the working medium and the feed speed.The effects of key parameters on the surface quality of short electric arc-electrochemical hybrid machining were studied by single factor experiments.The experimental results show that the surface thermal damage layer after short electric arc machining can be well removed by using the electrochemical effect of the bottom surface gap.When the feed speed is 4 mm/min,the thermal damage layer can be completely removed.The machining efficiency is 354 mm3/min,and the surface roughness Sa is 17.982 μm.
关键词
钛合金TC4/短电弧-电化学复合加工/工艺参数/热损伤层/表面粗糙度Key words
Titanium alloy TC4/Short electric arc-electrochemical hybrid machining/Process parameters/Thermal damage layers/Surface roughness引用本文复制引用
出版年
2024
NETL
NSTL
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