P. George and D. Philip Selvaraj, "Cutting parameter optimization of CNC dry milling process of AISI 410 and 420 grade MSS," Materials Today: Proceedings, vol. 42, pp. 897-901, 2021.

Picatinny pronunciationamerican

M. R. Policena, C. Devitte, G. Fronza, R. F. Garcia, and A. J. Souza, "Surface roughness analysis in finishing end-milling of duplex stainless steel UNS S32205," The International Journal of Advanced Manufacturing Technology, vol. 98, no. 5-8, pp. 1617-1625, 2018.

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T.-H. Nguyen, D.-T. Nguyen, and X.-T. Tran, "Effect of Cutting Parameter on Surface Roughness in Laser-Assisted Turning of 9CrSi Hardened Steel," International Journal of Scientific Engineering and Science, vol. 3, no. 8, pp. 56-60, 2019.

M. özdemir, "Optimization with Taguchi Method of Influences on Surface Roughness of Cutting Parameters in CNC Turning Processing," Mechanics, vol. 25, no. 5, pp. 397-405, 2019.

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P. Singh, J. S. Dureja, H. Singh, and M. S. Bhatti, "Performance evaluation of coated carbide tool during face milling of AISI 304 under different cutting environments," Materials Research Express, vol. 6, no. 5, 2019.

J. Airao, B. Chaudhary, V. Bajpai, and N. Khanna, "An Experimental Study of Surface Roughness Variation in End Milling of Super Duplex 2507 Stainless Steel," Materials Today: Proceedings, vol. 5, no. 2, pp. 3682-3689, 2018.

G. Zhang, H. Liu, X. Tian, P. Chen, H. Yang, and J. Hao, "Microstructure and Properties of AlCoCrFeNiSi High-Entropy Alloy Coating on AISI 304 Stainless Steel by Laser Cladding," Journal of Materials Engineering and Performance, vol. 29, no. 1, pp. 278-288, 2020.

K. Gutzeit, S. Basten, B. Kirsch, and J. C. Aurich, "Cryogenic Milling of Metastable Austenitic Stainless Steel Aisi 347," MM Science Journal, vol. 2021, no. 5, pp. 4962-4969, 2021.

T. Singh, J. S. Dureja, M. Dogra, and M. S. Bhatti, "Machining Performance Investigation of AISI 304 Austenitic Stainless Steel under Different Turning Environments," International Journal of Automotive and Mechanical Engineering, vol. 15, no. 4, pp. 5837-5862 2018.

A. Kumbhar, R. Bhosale, A. Modi, S. Jadhav, S. Nipanikar, and A. Kulkarni, "Multi-objective Optimization of Machining Parameters in CNC End Milling of Stainless Steel 304," International Journal of Innovative Research in Science, Engineering and Technology, vol. 4, no. 9, pp. 8419-8426, 2015.

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R. dos Santos Pereira, R. Droppa, M. C. Lopes de Oliveira, and R. A. Antunes, "Effect of Milling Parameters on the Stability of the Passive Film of AISI 304 Stainless Steel," Journal of Materials Engineering and Performance, vol. 30, no. 11, pp. 8131-8144, 2021.

A. I. Martinez-Ubeda, A. D. Warren, I. Griffiths, and P. E. J. Flewitt, "The Role of Prior Fabrication and in Service Thermal Ageing on the Creep Life of AISI Type 316 Stainless Steel Components," Key Engineering Materials, vol. 713, pp. 1-4, 2016.

V. V. Mukkoti, C. P. Mohanty, S. Gandla, P. Sarkar, S. R. P, and D. B, "Optimization of process parameters in CNC milling of P20 steel by cryo-treated tungsten carbide tools using NSGA-II," Production & Manufacturing Research, vol. 8, no. 1, pp. 291-312, 2020.

Stainless steel (SS), specifically AISI 304 and 420, was classified as austenitic and martensitic stainless steels which garnered excellent corrosion resistance (up to 650 oC) and easily to enhance mechanical properties by heat treatment. However, the machinability of these materials has not been widely studied. CNC milling process was defined as cutting process of workpiece using a rotating cutting tool which considered to improve productivity in manufacture industries. Machining parameters during CNC milling process such as cutting speed, feed rate, and depth of cut play an important role to achieve desired product with high quality. In addition, surface roughness was evaluated as pivotal factor to analyze resulted machining products of workpiece which subsequently used for direct application in vary industries. In order to study machinability of AISI 304 and 420 stainless steels, the optimization of machining parameters during CNC milling process was performed to determine their surface roughness values. The research data were analyzed by using Taguchi statistical method of S/N ratio and ANOVA. Furthermore, the results show that significant influence of machining parameters on AISI 304 austenitic stainless steel was feed rate of 82,29 %, then spindle speed of 3,75 % and depth of cut 0,63 %. Besides, for AISI 420 martensitic stainless steel, the feed rate still remains important in machining parameters of 72,93 %, then depth of cut 14.98% and spindle speed of 8.09 %. Thus, the result of this research endows more insights to know the machineability of AISI 304 and AISI 420 stainless steels.

A. Equbal et al., "Evaluating CNC Milling Performance for Machining AISI 316 Stainless Steel with Carbide Cutting Tool Insert," Materials, vol. 15, no. 22, 2022.

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A. AlHazaa and N. Haneklaus, "Diffusion Bonding and Transient Liquid Phase (TLP) Bonding of Type 304 and 316 Austenitic Stainless Steel—A Review of Similar and Dissimilar Material Joints," Metals, vol. 10, no. 5, 2020.