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Machinability Study on Hard AISI 4340 Steel with Carbide Cutting Tools


Affiliations
1 Department of Mechanical Engineering, Bankura Unnayani Institute of Engineering, Bankura-722146, West Bengal, India
     

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An investigation on machinability study on hard grade AISI 4340 steel with carbide cutting tools during turning is reported in this paper. This steel is employed in military aircraft, automotive systems, forged hydraulic systems and other machine tools. TiC coated groove type SNMG 120408-PM and TiC coated plain SNMA 120408/315 K15 carbide inserts are used under dry condition at a constant depth of cut. Wear test is also done. Turning tests employing groove type insert give desired performance, eg. high material removal rate, low tool wear rate and broken chips at a feed above 0.1 mm/rev with no built-up edge formation.

Keywords

Machinability, Machining, Hard Steel, Turning, Carbide Tool, Cutting Force, Tool Wear.
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  • Machinability Study on Hard AISI 4340 Steel with Carbide Cutting Tools

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Authors

Krishnendu Mondal
Department of Mechanical Engineering, Bankura Unnayani Institute of Engineering, Bankura-722146, West Bengal, India
Anjan Kumar Adak
Department of Mechanical Engineering, Bankura Unnayani Institute of Engineering, Bankura-722146, West Bengal, India
Santanu Das
Department of Mechanical Engineering, Bankura Unnayani Institute of Engineering, Bankura-722146, West Bengal, India
Bijoy Mandal
Department of Mechanical Engineering, Bankura Unnayani Institute of Engineering, Bankura-722146, West Bengal, India

Abstract


An investigation on machinability study on hard grade AISI 4340 steel with carbide cutting tools during turning is reported in this paper. This steel is employed in military aircraft, automotive systems, forged hydraulic systems and other machine tools. TiC coated groove type SNMG 120408-PM and TiC coated plain SNMA 120408/315 K15 carbide inserts are used under dry condition at a constant depth of cut. Wear test is also done. Turning tests employing groove type insert give desired performance, eg. high material removal rate, low tool wear rate and broken chips at a feed above 0.1 mm/rev with no built-up edge formation.

Keywords


Machinability, Machining, Hard Steel, Turning, Carbide Tool, Cutting Force, Tool Wear.

References





DOI: https://doi.org/10.24906/isc%2F2021%2Fv35%2Fi6%2F211366