Development and machinability assessment in turning Al/SiCp-metal matrix composite with multilayer coated carbide insert using Taguchi and statistical techniques

• Published in: Archives of Civil and Mechanical Engineering Vol. 13; no. 1; pp. 27 - 35
• Main Authors: Sahoo, A. K., Pradhan, S., Rout, A. K.
• Format: Journal Article
• Language: English
• Published: London Springer London 01.03.2013; Springer Nature B.V
• Subjects: Aluminum matrix composites; Civil Engineering; Cutting speed; Engineering; Machinability; Mechanical Engineering; Metal matrix composites; Multilayers; Original Research Article; Orthogonal arrays; Regression models; Statistical analysis; Structural Materials; Surface roughness; Titanium nitride coated carbides; Turning (machining); Wear mechanisms; Regression; Grey relational analysis; Surface roughness; Flank wear; Taguchi DOE
• ISSN: 1644-9665; 2083-3318
• DOI: 10.1016/j.acme.2012.11.005

This paper presents the development of Al/SiCp (10% weight) metal matrix composite through a conventional casting process and studied its machinability characteristics in turning using multilayer TiN coated carbide insert under dry environment based on Taguchi’s L 9 orthogonal array. Abrasion is found to be the dominant wear mechanism from the experimental study. Continuous fragmented saw tooth type of chip obtained during machining of Al/SiCp-MMC under dry environment. The colour of chip changes from metallic to partial blue and built-up-edge formation is noticed at extreme parametric conditions. Cutting speed is observed to be the most significant variable affecting the flank wear. Feed is found to be the most significant parameter for surface roughness. The regression models are highly significant because of higher R 2 value. The experimental and predicted values are very close to each other. Using grey relational analysis, the optimal parametric combination for multi-responses is found to be v3-f1-d3 and is greatly improved and noticed to be efficient while machining Al/SiCp-MMC.