Study of Influence of TIN, DLC and HC Coatings on Surface Roughness of LM13 Aluminium Alloy during Dry Machining Process

Abstract

The LM13 Aluminium alloy is primarily used in pistons and applications with high thermal stresses. The researchers' measure task is to achieve the lowest possible surface roughness by using the best possible coated tool and cutting parameters. LM13 Aluminium Alloy is machined using uncoated carbide cutting tool, PVD coated titanium nitride (TiN), Diamond like Carbon (DLC) and Hard Carbon (HC). Minitab statistical software is used to produce L27 Array for 3 factor and 3 levels of variables to conduct turning experiment. The study, employing Taguchi analysis for the dry machining process, has meticulously documented average surface roughness values to fine-tune cutting parameters for various tools. In the case of hard carbon-coated tools, an optimal surface finish with a minimum Ra of 0.615 µm was achieved under specific conditions: a spindle speed of 2000 rpm, a feed rate of 0.02 mm/rev, and a depth of cut of 0.25 mm. Furthermore, the research demonstrates the superior performance of coated tools when compared to their uncoated counterparts in achieving the desired surface finish.

Cite as

Sahebagouda Sanganagoudar, & Vishaldatta V. Kohir. (2023). Study of Influence of TIN, DLC and HC Coatings on Surface Roughness of LM13 Aluminium Alloy during Dry Machining Process. Advancement in Mechanical Engineering and Technology, 6(3), 1–11. https://doi.org/10.5281/zenodo.8358512