Effect of Rotating Magnetic Field and Ultrasonic Vibration on Micro-EDM Process
Effect of Rotating Magnetic Field and Ultrasonic Vibration on Micro-EDM Process
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DOI：
10.1007/s13369-019-04229-3
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发表时间：
2020-02
影响因子：
2.9
通讯作者：
Gurpreet Singh;P. Satsangi;D. Prajapati
中科院分区：
文献类型：
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作者：
Gurpreet Singh;P. Satsangi;D. Prajapati
电火花加工是微细加工领域的重要工艺之一。然而，提高加工效率的过程仍然是一个具有挑战性的任务，在微观领域。在更大的深度加工微特征仍然是一个困难的任务。许多研究人员已经报道了应用磁场和超声振动来克服这一挑战的优势。然而，在大多数研究中，磁场和超声振动是分开施加的。磁场和超声波振动的组合效应可以导致该过程的显著改善。本研究以田口法为基础，采用L18正交表进行一系列实验，以进给速度、能量、刀具旋转角度等参数为影响因素。采用管状铜电极在SKD-5模具钢上进行微细加工。通过测量加工出的半圆形微特征的材料去除率和锥度来分析加工性能。结果表明，磁场和超声振动对加工区域的联合作用，可提高材料去除率，减小半圆形微特征的锥度，提高加工效率。
Electrical discharge machining is one of the most important processes in the field of micro-machining. However, improving the machining efficiency of the process remains a challenging task in micro-domain. Machining micro-features at larger depth is still a difficult task. Many researchers have reported the advantage of applying magnetic field and ultrasonic vibrations to overcome this challenge. Though, in most of the studies, the magnetic field and ultrasonic vibrations were applied separately. The combined effect of magnetic field and ultrasonic vibrations can lead to significant improvement in the process. This work adopted an L18 orthogonal array based on Taguchi method to conduct a series of experiments considering the machine parameters such as feed rate, energy and tool rotation. Tubular copper electrode was used to make micro-features on SKD-5 die steel. The machining performance was analysed by measuring the material removal rate and taper of semi-circular micro-features produced. The results depict that combined effect of magnetic field and ultrasonic vibrations to machining zone gives higher material removal rate and less taper for semi-circular micro-feature and also leads to higher machining efficiency.