Surface Roughness Evaluation in Dry-Cutting of Magnesium Alloy by Air Pressure Coolant

Jeong-Du Kim, Keon-Beom Lee

.

DOI: 10.4236/eng.2010.210101                

Abstract

In this paper, a studying of surface roughness in dry milling with air pressure coolant of wrought magnesium alloy AZ31B will be carried out. The effects of air flow, feed-rate per tooth, cutting velocity and number of inserts in a cutting tool on surface roughness have been examined. Surface roughness increases with increasing feed-rate per tooth and increasing number of inserts in the cutting tool. However, it is nearly unchanged under a specific range of cutting velocity in the experiment and improved by the flow of air cooling.

Keywords

Machinability, Surface Roughness, Number of Inserts, Dry Milling, Air Pressure Coolant

Conflicts of Interest

The authors declare no conflicts of interest.

References

[1]	D. Eliezer, E. Aghion and F. H. (Sam) Froes, “Advanced Per-formance Materials,” Magnesium Science, Technology and Applications, Vol. 5, No. 3, 1998, pp. 201-212.
[2]	B. L. Mordike and T. Ebert, “Magnesium: Properties- Applica-tions-Potential,” Materials Science and Engineering A, Vol. 302, No. 1, 2001, pp. 37-45.
[3]	H. K. T?nshoff and J. Winkler, “The Influence of Tool Coatings in Machining of Magnesium,” Surface and Coatings Technology, Vol. 94-95, No. 10, 1997, pp. 610- 616.
[4]	F. Z. Fang, L. C. Lee and X. D. Liu, “Mean Flank Temperature Measurement in High Speed Dry Cutting of Magnesium Alloy,” Journal of Materials Processing Technol-ogy, Vol. 167, No. 1, 2005, pp. 119-123.
[5]	M. M. Advede-sian and H. Baker, “Magnesium and Magnesium Alloys – ASM Specially Handbook,” ASM International, Ohio, 1999, pp. 127-129.
[6]	K. U. Kainer, “Magnesium-Alloys and Tech-nology,” WILEY-VCH, Weinheim, 2003, pp. 130-132.
[7]	P. S. Sreejith and B. K. A. Ngoi, “Dry Machining: Machining of the Future,” Journal of Materials Processing Technology, Vol. 101, No. 1-3, 2000, pp. 287-291.
[8]	H.-T. Young, P. Ma-thew and P. L. B. Oxley, “Predicting Cutting Forces in Face Milling,” International Journal of Machine Tools and Manu-facture, Vol. 34, No. 6, 1994, pp. 771-783.
[9]	T. L. Jones, R. D. DeLorme, M. S. Burkins and W. A. Gooch, “Ballistic Evalu-ation of Magnesium Alloy AZ31B,” U.S. Army Research La-boratory, Project Number 1L162 618AH80, Report Number ARL-TR-4077, 2006, pp. 2-3.