OPTIMIZATION OF SURFACE ROUGHNESS IN HIGH-SPEED AND HEAT ASSISTED END MILLING OF SKD11 STEEL WITH COATED CARBIDE INSERT

Mac Thi Bich; Luyen The Thanh; Nguyen Duc Toan

Mac Thi Bich Faculty of Mechanical Engineering, Hung Yen University of Technology and Education
Luyen The Thanh Faculty of Mechanical Engineering, Hung Yen University of Technology and Education
Nguyen Duc Toan Hanoi University of Science and Technology

Keywords: Thermal-Assisted Machining (TAM), High-Speed Machining (HSM), surface roughness, Opimization, SKD11

Abstract

This study experimentally studies surface roughness when high-speed milling SKD11 steel in an induction heating environment. The goal of research the influence of control parameters, including cutting speed, feed rate, cutting depth, and elevated temperature on the surface roughness, while solving the optimization problem, Taguchi experimental design and analysis of variance ANOVA method are used. The elevated temperature supporting the machining process is the parameter that has the greatest influence on the surface roughness with an influence percentage of 38,03 %. The next orders are the cutting depth, feed rate, and cutting speed with corresponding percentage effects of 32,85 %, 19,62 %, and 9,5 %. The optimal parameter set for the smallest roughness is A3B1C1D3 corresponding to V = 1000 m/min, f = 573 mm/min, t = 0.5 mm and T = 500 oC. A mathematical regression function to predict surface roughness at different machining conditions is built which gives highly accuracy when compared with experimental data.

References

H. I. Jeong and C. M. Lee, “A study on improvement of tool life using a heat shield in laser assisted machining to Inconel 718,” Opt. Laser Technol., 2021, vol. 142, no. May, p. 107208, doi:10.1016/j.optlastec.2021.107208.

X. Cui, J. Zhao, C. Jia, and Y. Zhou, “Surface roughness and chip formation in high-speed face milling AISI H13 steel,” Int. J. Adv. Manuf. Technol., 2012, vol. 61, no. 1–4, pp. 1-13, doi: 10.1007/s00170-011-3684-9.

S. Xavierarockiaraj and P. Kuppan, “Investigation of cutting forces, surface roughness and tool wear during Laser assisted machining of SKD11Tool steel,” Procedia Eng., 2014, vol. 97, pp. 1657-1666, doi: 10.1016/j.proeng.2014.12.316.

Z. Q. Liu, X. Ai, H. Zhang, Z. T. Wang, and Y. Wan, “Wear patterns and mechanisms of cutting tools in high-speed face milling,” J. Mater. Process. Technol., 2002, vol. 129, no. 1-3, pp. 222-226, doi: 10.1016/S0924-0136(02)00605-2.

M. H. F. A. del Olmo, L.N. López de Lacalle, G. Martínez de Pissón, C. Pérez-Salinas, J.A. Ealo, L. Sastoque, “Tool wear monitoring of high-speed broaching process with carbide tools to reduce production errors,” Mech. Syst. Signal Process., 2022, vol. 172, p. 109003.

G. M. et al. Khan, S.A., Ameer, M.F., Uddin, “An in-depth analysis of tool wear mechanisms and surface integrity during high-speed hard turning of AISI D2 steel via novel inserts,” Int J Adv Manuf Technol, 2022, vol. 122, pp. 4013-4028.

P. Thi-Hoa, M. Thi-Bich, T. Van-Canh, B. Tien-Long, and N. Duc-Toan, “A study on the cutting force and chip shrinkage coefficient in high-speed milling of A6061 aluminum alloy,” Int. J. Adv. Manuf. Technol., 2018, vol. 98, no. 1–4, pp. 177-188, doi: 10.1007/s00170-017-1063-x.

P. Lezanski and M. C. Shaw, “Tool face temperatures in high speed milling,” J. Manuf. Sci. Eng. Trans. ASME, 1990, vol. 112, no. 2, pp. 132-135, doi: 10.1115/1.2899555.

X. Tian, J. Zhao, J. Zhao, Z. Gong, and Y. Dong, “Effect of cutting speed on cutting forces and wear mechanisms in high-speed face milling of Inconel 718 with Sialon ceramic tools,” Int. J. Adv. Manuf. Technol., 2013, vol. 69, no. 9–12, pp. 2669–2678, doi: 10.1007/s00170-013-5206-4.

M. Thi-Bich, D. Van-Chien, B. Tien-Long, and N. Duc-Toan, “Cutting force model for thermalassisted machining of tool steel based on the taguchi method,” Metals (Basel)., 2018, vol. 8, no. 12, doi: 10.3390/met8120992.

A. K. M. N. Amin, M. H. B. M. Saad, and M. D. Arif, “Modeling & optimization of surface roughness & vibration amplitude in heat assisted end milling of SKD 11 tool steel using ball nose tool,” Adv. Mater. Res., 2012, vol. 538–541, pp. 799-803, doi: 10.4028/www.scientific.net/AMR.538-541.799.

C. W. Chang and C. P. Kuo, “Evaluation of surface roughness in laser-assisted machining of aluminum oxide ceramics with Taguchi method,” Int. J. Mach. Tools Manuf., 2007, vol. 47, no. 1, pp. 141-147, doi: 10.1016/j.ijmachtools.2006.02.009.

C. Wang, Y. Xie, L. Zheng, Z. Qin, D. Tang, and Y. Song, “Research on the Chip Formation Mechanism during the high-speed milling of hardened steel,” Int. J. Mach. Tools Manuf., 2014, vol. 79, pp. 31-48, doi: 10.1016/j.ijmachtools.2014.01.002.

J. D. Kechagias, K. E. Aslani, N. A. Fountas, N. M. Vaxevanidis, and D. E. Manolakos, “A comparative investigation of Taguchi and full factorial design for machinability prediction in turning of a titanium alloy,” Meas. J. Int. Meas. Confed., 2020, vol. 151, p. 107213, doi: 10.1016/j.measurement.2019.107213.