A Preliminary Study of Variable Strength Activation of Coolant for Precision Machining

Abstract:

A new active cooling method is proposed for increased cooling effectiveness of coolant in grinding. It is based on variable strength activation of coolant together with active cooling to allow better machining heat transfer through mist evaporation. Multiple actuators are used through superposition and focusing. A device of variable strength coolant activation has been developed. Preliminary experimental tests were conducted to test the feasibility of the proposed cooling method. It is found that, using the proposed variable strength activation, an improvement of 87.6% in Ra value and 71.9% in Rq value were obtained when compared with the existing activated and cooled coolant cooling method.

• Periodical: Advanced Materials Research (Volumes 76-78)
• Pages: 635-640
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.76-78.635
• Online since: June 2009
• Authors: Y. Gao, S. Zhou, Y. Zhang
• Keywords: Activated Cooling, Active Cooling, Actively Cooled, Coolant, Multiple Actuator Design, Variable Strength Activation

References

[1] S. Malkin: Grinding Technology - Theory and Applications of Machining with Abrasives (Halsted Press, NY 1989).

[2] R.A. Irani, R.J. Bauer and A. Warkentin: Int. J. Mach. Tools Manuf. Vol. 45 (2005), p.1696.

[3] Y. Yildiz and M. Nalbant: Int. J. Mach. Tools Manuf. Vol. 48 (2008), p.947.

[4] http: /en. wikipedia. org/wiki/Roughness#Roughness_Parameters.

[5] R. Snoeys, M. Maris and J. Peters: CIRP Annals Vol. 27 No. 2 (1978), p.571.

[6] A.A. Torrance, in: Proceedings of the Twelfth International Machine Tool Design and Research Conference (1978), p.637.

[7] K. Blenkowski: Manuf. Eng. (1993), p.90.

[8] J.A. Webster, C. Cui and R.B. Mindek: CIRP Annuals Vol. 44 No. 1 (1995), p.333.

[9] K. Suzuki, H. Qun, S. Mishiro and K. Tanaka: Key Eng. Mater. Vol. 238-239 (2003), p.183.

[10] K. Suzuki, Y. Tanaka, M. Iwai, T. Uematsu and K. Tanaka: Key Eng. Mater. Vol. 257-258 (2004), p.311.

[11] Y. Gao, S. Tse and H. Mak: Appl Therm Eng Vol. 23 No. 5 (2003), p.523.

[12] Y. Gao, H. Lai and S. Tse: Key Eng. Mater. Vol. 291-292 (2005), p.233.

[13] Y. Gao and H. Lai: Key Eng. Mater. Vol. 339 (2007), p.427.

[14] Y. Gao, J. Xin and H. Lai: Key Eng. Mater. Vol. 389-390 (2009), p.344.

[15] Y. Gao and H. Lai: Int. J. Mater. Product Technol Vol. 31 No. 1 (2008), p.14.

[16] Y. Gao, J. Xin and H. Lai: Key Eng. Mater. Vol. 389-390 (2009), p.338.

[17] Y. Gao and S. Zhou, U.S. Patent, Provisional, 61193564 (2008).

[18] Y. Zhang, S. Zhou and Y. Gao, in: Proc ISAAT (2009).