Investigation on Laser Assisted Micro Ball Milling of Inconel 718

Abstract:

Micro milling of super alloy materials such as nickel based alloys is challenging due to the excellent of its mechanical properties. Therefore, new techniques have been suggested to enhance the machinability of nickel based alloys by pre-heating the workpiece’s surface to reduce its strength. Determining the processing parameters and their effects to the processing characteristics are crucially important. However, not only the micro-milling parameters need to be considered, but the pre-heating parameters are also need to take into consideration as well. These parameters are expected to improve the machinability. In this study, the experiment of LAMM in Inconel 718 was conducted with considering laser power, cutting speed, depth of cut, feed rate and laser-to-cutting tool distance. From the result, the effectiveness of laser assisted and cutting parameter in term of cutting force and tool wear was identified by comparing between conventional and LAMM. Finally, the optimum range of machining parameters can be determined.

• Periodical: Applied Mechanics and Materials (Volume 660)
• Pages: 79-83
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.660.79
• Online since: October 2014
• Authors: Erween Abdul Rahim, N.M. Warap*, Zazuli Mohid, R. Ibrahim
• Keywords: Inconel 718, Laser Assisted Micro Milling (LAMM), Micro Ball Mill

References

[1] M. Arif, M. Rahman and W. Y. San, An experimental investigation into micro ball end-milling of silicon, Journal Of Manufacturing Processes, 14 (2012) 52-61.

DOI: 10.1016/j.jmapro.2011.09.004

[2] A. Daymi, M. Boujelbene, M. Linares J., E. Bayraktar and A. B. Amara, Influence of workpiece inclination angle on the surface roughness in ball end milling of the titanium alloy Ti-Al-4V, Journal of Acheivements in Materials and Manufacturing Engineering, 35 (2009).

DOI: 10.1179/026708310x12738371692932

[3] E. Kuram and B. Ozcelik, Multi-objective optimization using Taguchi based grey relational analysis for micro-milling of Al 7075 material with ball nose end mill, Measurement, 46 (2013) 1849-1864, (2013).

DOI: 10.1016/j.measurement.2013.02.002

[4] M. Anderson, R. Patwa and Y. C. Shin, Laser-assisted machining of Inconel 718 with an economic analysis, International Journal of Machine Tools & Manufacture, 46 (2006) 1879-1891, (2006).

DOI: 10.1016/j.ijmachtools.2005.11.005

[5] G. N. Verginia, A. Iban, G. Oscar and L. and Josu, Mechanisms involved in the improvement of Inconel 718 machinability by laser assisted machining (LAM), International Journal of Machine Tools & Manufacture, 74 (2013) 19-28.

DOI: 10.1016/j.ijmachtools.2013.06.009

[6] I. Ucun, K. Aslantas and F. Bedir, An Experimental investigation of the effect of coating material on tool wear in micro milling of inconel 718 super alloy, Wear, 300 (2013) 8-19.

DOI: 10.1016/j.wear.2013.01.103

[7] I. Mane, V. Gognol, B. C. Bouzgarrou and P. Ray, Stability-based spindle speed control during flexible workpiece high-speed milling, International Journal of Machine Tools & Manufacture , 48 (2008) 184-194.

DOI: 10.1016/j.ijmachtools.2007.08.018

[8] G. Arndt, Ultra-High-Speed Machining: A Review and Analysis of Cutting Forces, Proceedings of the Institution of Mechanical Engineers, 187 (1973) 625-634.

DOI: 10.1243/pime_proc_1973_187_048_02

[9] M. Kumar and N. S. Melkote, Process capability study of laser assisted micro milling of a hard-to-machine material, Journal of Manufacturing Processes, 14 (2012) 41-51.

DOI: 10.1016/j.jmapro.2011.09.003

[10] R., G., Thompson, and S. Genculu, Microstructural Evolution in the HAZ of Inconel 718 and Correlation with the Hot on Ductility Test, Welding Research Supplement , (1983) 337-s - 345-s.

[11] E. Kuram and B. Ozcelik, Multi-objective optimization using Taguchi based grey relational analysis for micro milling of Al 7075 material with ball nose end mill, Measurement, 46 (2013) 1849-1864.

DOI: 10.1016/j.measurement.2013.02.002