Title: Cryogenic treatment on M2 HSS tool and its performance

Authors: Onkar Nath Choubey; Vikas Kumar Shukla; Ajay Pratap Singh Chauhan; Bipin Kumar Singh

Addresses: Department of Mechanical Engineering, Sant Longowal Institute of Engineering and Technology, Sangrur, Punjab, India ' Department of Mechanical Engineering, Sant Longowal Institute of Engineering and Technology, Sangrur, Punjab, India ' Department of Mechanical Engineering, Sant Longowal Institute of Engineering and Technology, Sangrur, Punjab, India ' Department of Mechanical Engineering, Sri Eshwar College of Engineering, Coimbatore, 641202, Tamil Nadu, India

Abstract: In this study, an effective approach of deep cryogenic treatment has been selected to analyse the mechanical properties of AISI M2 tool steel and C45 steel. The microstructural analysis of deep cryogenic treatment AISI M2 tool steel reveals an improvement of 5.81% and C45 steel by 4.59% in hardness, due to better homogeneity of carbide density inside the metal matrix. An interesting result is observed in the case of power consumption, which is found minimum for treated tools and treated workpiece. This happens may be due to softening of the workpiece, by rising high temperature at tool and job interaction. A favourable effect on surface roughness, power consumption and material removal rate is observed with an increase in cutting speed. The increase in feed rate and depth of cut deteriorates the quality of the surface that also increases the tool wear and power consumption. The deterioration in machined surface may be observed due to presence of more unmachined material per revolution at high feed rate and depth of cut.

Keywords: deep cryogenic treatment; AISI M2; C45; turning; microhardness; microstructure.

DOI: 10.1504/IJMATEI.2023.136118

International Journal of Materials Engineering Innovation, 2023 Vol.14 No.4, pp.365 - 379

Received: 25 Apr 2022
Accepted: 10 Aug 2022
Published online: 17 Jan 2024 *

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