Optimization of Process Parameters of Titanium Alloy Grade 5 Using CNC Wire-Cut EDM

Abstract:

Accompanying the development of mechanical industry, the demand for alloy materials having high hardness, toughness and impact strength are increasing. As these materials pose severe difficulty to be machined by conventional methods, Wire-cut Electric Discharge Machining (Wire EDM) machines are employed to machine them. The ultimate requirement of any machining process being fine surface finish, is accurately satisfied by wire-cut EDM process. Hence this project aims at obtaining the best surface finish by optimizing various process parameters affecting the machining conditions. With the assistance of Taguchi quality engineering, various number of experiments will be conducted by varying the process parameters at various levels. The output response variable being surface roughness, will be measured for all the number of experiments conducted. As the lowest value of surface roughness indicates the best surface finish, the optimum parameter level combination would be analyzed which gives desired surface finish. These optimized values of various parameters would then be used in performing machining operation in order to obtain desirable outputs.

• Periodical: Advanced Materials Research (Volumes 984-985)
• Pages: 56-61
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.984-985.56
• Online since: July 2014
• Authors: C. Nandakumar*, B. Mohan, S. Srisathirapathy
• Keywords: CNC Wire EDM, Surface Roughness (SR), Taguchi Method

References

[1] Hewidy.M. S, El-Taweel, T. A, El-Safty.M. F Modeling the machining parameters of wire electric discharge machining of inconel 601 using rsm, Journal of material processing technology Vol. 169, (2005) pp.328-336.

DOI: 10.1016/j.jmatprotec.2005.04.078

[2] Juhr. H, Schulze.H. P, Wollenburg. G, Kunanz. K Improved cemented carbide properties after wire EDM by pulse shaping, Journal of material processing technology Vol. 149, (2004) pp.178-183.

DOI: 10.1016/j.jmatprotec.2004.02.037

[3] Kanlayasiri. S, Boonmung. S An investigation on effects of wire EDM machining parameters on surface roughness of newly developed DC53 die steel, Journal of materials processing technology Vol. 187, (2007) pp.26-29.

DOI: 10.1016/j.jmatprotec.2006.11.220

[4] Chang Tsai Modeling and analysis of rapidly resolidified layer of SG cast iron in the EDM process through responsive surface methodology, Journal of Materials Processing Technology Vol. 182, (2006) pp.525-533.

DOI: 10.1016/j.jmatprotec.2006.09.012

[5] Liao.Y. S, Huang.J. T, Chen.Y. H'A study to achieve a fine surface finish in Wire EDM'- Journal of material processing technology Vol. 149, (2003) pp.165-171.

DOI: 10.1016/j.jmatprotec.2003.10.034

[6] Mu - Tian Yan, Pin-Hsum Huang Accuracy improvement of wire edm by real time wire tension control, Journal of Machine tools and Manufacture Vol. 44, (2004) pp.807-814.

DOI: 10.1016/j.ijmachtools.2004.01.019

[7] Philip J. Ross, Taguchi techniques for quality engineering, 2000-selection of orthogonal array.

[8] Scot. D, Boyina. S, Rajurkar.K. P, Analysis and optimization of parameter combinations in wire electrical discharge machining, Int. J. Prod. Res. 29 11 1991 2189-2207.

DOI: 10.1080/00207549108948078

[9] Seroke Kalpakjain, Manufacturing engineering and technology, Unconventional machining processes -(2002).