Volume 2, Issue 1, June 2018, Pages: 50-55
Received: May 30, 2018;
Accepted: Jul. 25, 2018;
Published: Sep. 12, 2018
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Rajesh Ramadass, Department of Production Engineering, PSG College of Technology, Coimbatore, India
Saravanan Sambasivam, Department of Production Engineering, PSG College of Technology, Coimbatore, India
The main aim of this work is to minimize the surface roughness in the flat lapping of EN8 material. The process variables considered for the study were lapping time, abrasive size and abrasive carrier oil proportion. The mathematical model related to the lapping such as surface finish model, stress model and its significance was understood. The (L9) orthogonal array in Taguchi method was utilized to conduct the experiments and surface roughness values were measured. The significance of each process variable on the surface roughness was studied using S/N ratio results. From the results, it was inferred that most influence factor among process variables is abrasive carrier oil proposition in slurry. Response table showed a delta value of 0.1967 for the abrasive carrier oil proposition in slurry. The optimum combination of process variables was determined based on S/N ratio and it was understood that minimum aluminum oxide abrasive proportion in slurry provides better surface quality in lapping of EN8 material. The optimum combination for minimum surface roughness were 15 minutes lapping time, 80 µm abrasive size and 1:3 abrasive carrier oil proportion in slurry.
Process Variables Optimization in Lapping of EN8 Material Using Taguchi Method, Engineering Mathematics.
Vol. 2, No. 1,
2018, pp. 50-55.
Jeoung-Du-Kim, Min-Seong Choi, “A study on the optimization of the cylindrical lapping process for engineering fine ceramics (Al2O3) by the statistical design method”, Journal of Material ProcessingTechnology(1995), pp368-385.
Chandrasekar and T. N Farris, “Mechanics of Polishing”, Journal of Applied Mechanics (1998). Vol 65(2) pp 410-416.
Kuo-Yi Chang, Yu-Hua Song, Tsann-Rong Lin, “Analysis of lapping and polishing of a gauge block”, International Journal of Advanced Manufacturing Technology (2002). Vol 20(6) pp 414-419.
Shibata, B. Golman, k. Shinohara H. C, “Profile analysis of surfaces lapped with diamond particles of several shapes”, Wear Journal (2003). Vol 254(8) pp 742-748.
J kang, M Hadfield, “The effects of lapping load in finishing advanced ceramic balls on a novel eccentric lapping machine”, Institution of Mechanical Engineers (2005). Vol 219 (7) pp 505-513.
J H Liu, Z J Pei, Graham R. Fisher, “Grinding wheels for manufacturing of silicon wafers: A literature review”, International Journal of Machine Tools and Manufacture (2007). Vol 47(1), pp1-13.
J. K. Won, Y. J. Chun, M. W. Cho, J. H. Lee., “Ultra-precision lapping of machinable ceramic Si3N4-BN by in process electrolytic dressing”, International Journal of Advanced Manufacturing (2007). Vol 31(12). pp 1101-1108.
Lalit Suhas Deshpande, Raman, Sunanta, Agbaraji, “Observations in flat lapping of stainless steel and bronze”, Wear Journal (2008). Vol 265, pp105-116.
Fan Jiang, Jian Hua Xiang, Zhong Wei Liang, Chun Liang Zhang, "The Optimization of Lapping Process Parameters Based on Extension Theory", Key Engineering Materials, Vols. 531-532, pp. 262-265, 2012.
Sitthikorn Duangkaew · Pongchanun Luangpaiboon, “Surface Lapping Process Improvement via Steepest Ascent Method Based on Factorial and Simplex Designs,” (2013).
Tiberiu Dobrescu, Nicoleta-Elisabeta Pascu, Gabriel Jigs, ConstantinOpran, “Optimization criteria of Plane Lapping Machines”, (2014) Procedia Engineering, Vol 100, pp428-434
Jian Bin Wang, Zhen Li, Hong Gao, Da Shu, Ping Xiao, "Process Optimization of Lapping Sapphire Substrate with Fixed Diamond Abrasive Pad", Key Engineering Materials, (2016), Vol. 693, pp. 1090-1097.
Adam Barylski “Optimization of kinematic parameters in single sided lapping”, doi: 10.17814/mechanik.2017.10.134
A K Hussain, K Q Lee, L M Aung, A Abu1, L K Tan and H S Kang, “IOP Conference Series: Materials Science and Engineering, doi:10.1088/1757-899X/290/1/012014
Lynah, P. R., "Lapping," ASM Handbook, Vol. 16, 1989, pp. 492-505.
Subramanian, K., "Finishing Methods Using Multipoint or Random Cutting Edges," ASM Handbook, Vol. 5, 1994, pp. 90-91, 105-106.
Indge, John H., "Lapping, Honing, and Polishing," ASM Handbook, Vol. 4, 1992, pp. 351-358.
Brooman, Eric W., "Design for Surface Finishing," ASM Handbook, Vol. 20 (Material Selection and Design), pp. 820-827.
Paul Mathews, “Design of experiments with MINITAB," 2005, pp 93-105.