Microstructure Changes of Machined Surfaceson Austenitic 304 Stainless Steel

Authors: Lin. Yan, Wenyu. Yang, Hongping. Jin, Zhiguang Wang

Abstract:

This paper presents a experiment to estimate the influences of cutting conditions in microstructure changes of machining austenitic 304 stainless steel, especially for wear insert. The wear insert were prefabricated with a width of 0.5 mm. And the forces, temperature distribution, RS, and microstructure changes were measured by force dynamometer, infrared thermal camera, X-ray diffraction, XRD, SEM, respectively. The results told that the different combinations of machining condition have a significant influence on machined surface microstructure changes. In addition to that, the ANOVA and AOMwere used to tell the different influences of cutting speed, feed rate, and wear insert.

Keywords: Microstructure Changes, Wear width, Stainless steel

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1057473

References:

[1] S. Ghosh and V. Kain, "Microstructural changes in AISI 304L stainless steel due to surface machining: effect on its susceptibility to chloride stress corrosion cracking,"J Nuc. Mater., vol. 403, pp. 62-67, 2010.
[2] S. Ghosh and V. Kain, "Effect of surface machining and cold working on the ambient temperature chloride stress corrosion cracking susceptibility of AISI 304L stainless steel" Mater. Sci. Eng. A., vol. 527, pp 62-67, 2010.
[3] E.O.Ezugwu and K.A.Olajire, "Evaluation of machining performance of martensitic stainless steel," Tribology Letters. Vol. 12, pp 183-187, 2002.
[4] D. Kurniawan, N. M.Yusof, and S. Sharif, "Hard machining of stainless steel using wiper coated carbide: tool life and surface integrity" Mater. Manufact. Process., vol. 25, pp 370-377, 2010.
[5] W. T. Chien and C. Y. Chou, "The predictive model for machinability of 304 stainless steel"J Mater. Process. Tech., vol. 118, pp 442-447, 2001.
[6] U. A. Dabade, S. S. Joshi, R.Balasubramaniam, and V. V. Bhanuprasad, "Surface finish and integrity of machined surface on Al/SiCp composites," J Mater. Process. Tech., vol. 193, pp 166-174, 2007.
[7] Y. Huang and S. Y. Liang, "Modelling of the cutting temperature distribution under the tool flank wear effect," Proc. Instn Mech. Engrs Part C: J. Mech. Eng. Sci., vol. 217, pp 1195-1208, 2003.
[8] W. Grzesik, "Experimental investigation of the cutting temperature when turning with coated indexable inserts," Int. J. Mac. Tools Manufact., vol. 39, pp 355-369, 1999.
[9] D.Y. Jang, T. R. Watkins, K. J. Kozaczek, C. R. Hubbard, and O. B. Cavin, "Surface residual stresses in machined austenitic stainless steel," Wear., vol. 194, pp 168-173, 1996.