A study on the quality of micro-hole of Ti-6Al-4V by EDM process with on-machine measurement techniques

Jun Li; Xiaoyu Liu; Xingping Wei; Shiping Zhao

doi:10.1117/12.2035629

10 October 2013 A study on the quality of micro-hole of Ti-6Al-4V by EDM process with on-machine measurement techniques

Jun Li, Xiaoyu Liu, Xingping Wei, Shiping Zhao

Proceedings Volume 8916, Sixth International Symposium on Precision Mechanical Measurements; 89162Q (2013) https://doi.org/10.1117/12.2035629
Event: Sixth International Symposium on Precision Mechanical Measurements, 2013, Guiyang, China

Abstract

A new on-machine measurement technique is proposed to observe the quality of micro-hole in micro Electrical Discharge Machining (EDM) progress. Images of micro-hole are captured by means of a simple configuration use a light-emitting diode (LED) illuminator, optical fiber, and a camera charge-coupled device (CCD).The device does not make contact with workpiece and acquire the image from the contour of the finished micro-hole. Because of using the optical fiber to transmit the real-time image, the device can woke in the narrow and small place. Based on the detected feature points, the geometrical features of the finished micro-hole such as its aperture can be obtained in real time. Meanwhile, the measuring result shows the micro-hole is whether or not qualified and can optimize the process parameters.

Citation Download Citation

Jun Li, Xiaoyu Liu, Xingping Wei, and Shiping Zhao "A study on the quality of micro-hole of Ti-6Al-4V by EDM process with on-machine measurement techniques", Proc. SPIE 8916, Sixth International Symposium on Precision Mechanical Measurements, 89162Q (10 October 2013); https://doi.org/10.1117/12.2035629

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