Development of Quality Detecting System for Micro Holes by ECM Based on Machine Vision Technology

Abstract:

A rapid quality detection system for micro hole fabricated by electrochemical machining (ECM) is proposed by studying on the optical features of micro hole. The edge of micro hole is detected exactly with the digital image processing techniques, such as, the middle value filter, the threshold value transformation, and so on. The least square circle fit arithmetic and the new roundness measurement algorithm are synthetically used in the processing of geometric feature recognition of micro holes. The practical results prove that the method with exact conclusion and high precision can satisfy the quality inspection requirement of micro holes fabricated by ECM.

• Periodical: Applied Mechanics and Materials (Volumes 397-400)
• Pages: 1482-1485
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.397-400.1482
• Online since: September 2013
• Authors: Yong Liu, Lin Sen Zhu, Qiu Ju Xiong
• Keywords: ECM, Edge Detection, Machine Vision, Median Filtering, Micro Holes

References

[1] J. A. McGeough, M. C. Leu, K. P. Rajurkar, etc.: Annals of the CIRP, Vol. 50 (2001), pp.499-514.

DOI: 10.1016/s0007-8506(07)62990-4

[2] Y. Liu, D. Zhu, Y. B. Zeng, etc.: Int J Adv Manuf Technol, Vol. 55 (2011), pp.195-203.

[3] J. W. Cui, L. Li, J. Tan: Optics Letters, Vol. 36 (2011), pp.4689-4691.