The ultrasound effect on technological parameters for increase in performances of W-EDM machines
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- 作者：Viorel-Mihai Nani
- 关键词：W ; EDM processing ; Wire electrode ultrasonic activated ; Spatial waves ; Dimensional accuracy ; Shape deviations ; Roughness surface
- 刊名：The International Journal of Advanced Manufacturing Technology
- 出版年：2017
- 出版时间：January 2017
- 年：2017
- 卷：88
- 期：1-4
- 页码：519-528
- 全文大小：
- 刊物类别：Engineering
- 刊物主题：Industrial and Production Engineering; Media Management; Mechanical Engineering; Computer-Aided Engineering (CAD, CAE) and Design;
- 出版者：Springer London
- ISSN：1433-3015
- 卷排序：88
文摘
This paper presents the results of an experimental research which aim to improve performances of the wire electrical discharge machining (W-EDM), increasing the dimensional accuracy and decreasing the error of shape and the workpieces roughness. For this, the W-EDM machines were equipped with special devices for ultrasonic activation of the wire electrode. The wire electrode activation with ultrasonic vibrations overlaps across the effect energy, which initiates and occurs on the workpiece surface due to electrical discharge in pulse. It generates multiple effects in technological interstitium (gap). By partially or totally annihilating the influence of electromagnetic field between electrodes, the ultrasonic energy corrects the dimensional accuracy, the shape deviation, and the workpiece surface quality. The paper presents situations where short circuits are avoided and the experimental investigations were conducted under conditions that maximize the productivity of the technologic equipment.