A Comparative Study on the Tool-Work Interface Temperature Observed during the Turning Operation of AISI 4340 Steel In Flooded, Near Dry, and Dry, Machining Conditions

Volume 13 Issue 4 May - July 2018

Research Paper

A Comparative Study on the Tool-Work Interface Temperature Observed during the Turning Operation of AISI 4340 Steel In Flooded, Near Dry, and Dry, Machining Conditions

Milon Selvam Dennison*, N. M. Sivaram**, M. Abisha Meji***

* Research Scholar, Department of Mechanical Engineering, Karpagam Academy of Higher Education, Coimbatore, Tamil Nadu, India.

** Assistant Professor, Department of Mechanical Engineering, National Institute of Technology (NIT) Puducherry, India.

*** PG Scholar, Department of Physics, Bharathiar University, Coimbatore, Tamil Nadu, India..

Dennison, M. S., Sivaram, N. M., & Meji, M. A. (2018). A Comparative Study on the Tool-Work Interface Temperature Observed during the Turning Operation of AISI 4340 Steel In Flooded, Near Dry, and Dry, Machining Conditions. i-manager’s Journal on Future Engineering and Technology, 13(4), 34-45. https://doi.org/10.26634/jfet.13.4.14430

Abstract

The objective of this study is to analyze the effect of tool-work interface temperature observed during turning of AISI 4340 cylindrical steel components in three machining conditions, namely flooded, near-dry, and dry conditions with three separate CNMG-PEF 800 diamond finish Titanium Nitride (TiN) coated carbide cutting tool. The machining parameters considered in this study are cutting velocity, feed rate, and depth of cut. The experiments were planned based on full  factorial design (3³) and executed in an All Geared Conventional Lathe. The tool-work interface temperature was observed using a K-type tool-work thermocouple while machining of steel and subsequently, a mathematical model was developed for the tool-work interface temperature values through regression analysis. The significance of the selected machining parameters and their levels on tool-work interface temperature is found by Analysis of Variance (ANOVA) and F-test. The results revealed that machining under near-dry condition exhibited lesser temperature at the tool-work interface, which is the sign of producing better quality products in equivalence with the machining under flooded condition.