Research on Precision Mirror Machining Technology for W-Mo Alloy

Abstract:

A new way of precision machining was studied through the experiments of Electrolytic In-Process Dressing (ELID) precision grinding and ultra precision lapping and polishing for W-Mo metal alloy. First a 22nm(Ra) surface was obtained through the ELID grinding, last a 11nm(Ra) surface was obtained after the process of lapping and polishing with 0.1～0.3 N/cm² pressure, 60～100 r/min rotational speed and other optimized parameters. Meanwhile, the formation mechanism of ultra precision mirror surface of the alloy was also analyzed. The experiments prove surface quality of the work piece was guaranteed by ELID grinding, and which was also greatly affected by some parameters in lapping and polishing such as pressure, rotational speed.

• Periodical: Key Engineering Materials (Volume 487)
• Pages: 303-307
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.487.303
• Online since: July 2011
• Authors: Jia Liang Guan, H.W. Lu, X.H. Xiao, Y.C. Wu, Z.D. Chen
• Keywords: ELID Grinding, Precision Lapping and Polishing, Surface Roughness (SR), W-Mo Alloy

References

[1] J.X. Ren: Grinding of Difficult-to-cut Materials [M]. Beijing: National Defense Industry Press Vol. 1999, pp: 221-223.

[2] H. Ohmri: Int. J. Japan Soc. Prec. Eng Vol. 26 (1992), pp: 273-278.

[3] X.W. Jiang: Ultra-precision Lapping and Polishing Technology [M]. Beijing: National Defense Industry Press (1988).

[4] J.L. Guan, X.A. Yu and Z.X. Yang: Diamond & Abrasives Engineering Vol. 155(5) (2006), pp: 97-98.

[5] J.L. Guan, Z.J. Yuan and F.H. Zhang: Diamond & Abrasives Engineering Vol. 2000(116), pp: 40-41.