A Novel Eccentric Lapping Method with Two Rotatable Lapping Plates for Finishing Cemented Carbide Balls
Commenced in January 2007
Frequency: Monthly
Edition: International
Paper Count: 33122
A Novel Eccentric Lapping Method with Two Rotatable Lapping Plates for Finishing Cemented Carbide Balls

Authors: C. C. Lv, Y. L. Sun, D. W. Zuo

Abstract:

Cemented carbide balls are usually implemented in industry under the environment of high speed, high temperature, corrosiveness and strong collisions. However, its application is limited due to high fabrication cost, processing efficiency and quality. A novel eccentric lapping method with two rotatable lapping plates was proposed in this paper. A mathematical model was constructed to analyze the influence of each design parameter on this lapping method. To validate this new lapping method, an orthogonal experiment was conducted with cemented carbide balls (YG6). The simulation model was verified and the optimal lapping parameters were derived. The results show that the surface roundness of the balls reaches to 0.65um from 2um in 1 hour using this lapping method. So, using this novel lapping method, it can effectively improve the machining precision and efficiency of cemented carbide balls.

Keywords: Cemented carbide balls, eccentric lapping, high precision, lapping tracks, V-groove.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1100178

Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 2524

References:


[1] F. Itoigawa, T. Nakamura, K. Funabashi, “Steel ball lapping by lap with V-shape groove,” Transactions of the Japan Society of Mechanical Engineers. C, vol. 59, no. 562, 1993, pp. 1906–1912.
[2] K. Goto, H. Mizumoto, “A lapping system for ultra-precision bearing balls,” Journal of the Japan Society of Precision Engineering, vol. 62, no. 5, 1996, pp. 681–685.
[3] K. Goto, H. Mizumoto, “The influence of the groove depth of laps on the waviness generated on lapped balls in ball lapping,” Journal of the Japan Society of Precision Engineering, vol. 64, no. 5, 1998, pp. 743-747.
[4] B. H. Lv, “Research on ceramic ball lapping and sphere-shaping mechanism with rotated dual-plates machine,” Zhejiang University of Technology, 2007.
[5] W. Angele, “Finishing high precision quartz balls,” Precision Engineering, vol. 2, no. 3, 1980, pp. 119-122.
[6] T. Kurobe, H. Kakuta, and M. Onoda, “Spin angle control lapping of balls (1st report): theoretical analysis of lapping mechanism,” Journal of Japan Society for Precision Engineering, vol. 62, no. 12, 1996 pp. 1773-1777.
[7] T. Kurobe, H. Kakuta, and M. Onoda, “Spin angle control lapping of balls (2nd report): lapping of silicon nitride ball,” Journal of Japan Society for Precision Engineering, vol. 63, no. 5, 1997, pp. 726- 730.
[8] Y. Tani, and K. Kawata, “Development of high-efficient fine finishing process using magnetic fluid,” Journal of Japan Society of Lubrication Engineers, vol. 30, 1985, pp. 472-276.
[9] J. Wang and H. W. Zhen, “A new lapping method for ceramic ball lapping,” Diamond & Abrasives Engineering, vol. 4, no. 96, 1996, pp. 15-18.
[10] H. Wen and Y. S. Liu, “Planetary Lapping Technology for Cemented-carbide Balls,” Bearing, vol. 11, 2009, pp. 12-15.
[11] J. Kang and M. Hadfield, “Parameter optimization by Taguchi methods for finishing advanced ceramic balls using a novel eccentric lapping machine,” Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture, vol. 215, no. 2001, pp. 69-78.
[12] J. Kang and M. Hadfield, “A novel eccentric lapping machine for finishing advanced ceramic balls,” Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture, vol. 215, 2001, pp. 781-795.
[13] J. Kang and M. Hadfield, “The polishing process of advanced ceramic balls using a novel eccentric lapping machine,” Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture, vol. 219, 2001, pp. 493-504.
[14] L. F. Nie and X. J. Zhao, “Discussion on shaping mechanism of steel ball and its affect factors,” Bearing, vol. 1, 2001, pp. 16-18.
[15] F. Zhang, X. B. Cao and J. X. Zou, “A new large-scale transformation algorithm of quaternion to Euler Angle,” Journal of Nanjing University of Science and Technology, vol. 26, no. 4, 2002, pp. 376-380.