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Adak, Anjan Kumar
- An Investigation on Turning of Hard Steel using Coated Carbide Inserts
Abstract Views :335 |
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Authors
Affiliations
1 Mechanical Engineering Department, Bankura Unnayani Institute of Engineering, Bankura-722146, IN
2 Mechanical Engineering Department, Kalyani Government Engineering College, Kalyani- 741235, IN
1 Mechanical Engineering Department, Bankura Unnayani Institute of Engineering, Bankura-722146, IN
2 Mechanical Engineering Department, Kalyani Government Engineering College, Kalyani- 741235, IN
Source
Journal of the Association of Engineers, India, Vol 90, No 1-2 (2020), Pagination: 47-55Abstract
Employing conventional machining operations in material removal type manufacturing processes for processing difficult-to-machine hard materials through some ways and means is the focus of research by machining research groups across the globe since long. This gives considerable advantages over the grinding process in terms of higher material removal rate, better surface integrity of the work surface, etc., although grinding is commonly used for material removal of quite hard materials along with their finishing. In this paper, machinability of hard AISI 4340 steel is explored employing groove-type chip breaking coated carbide inserts under various cutting velocity and feed at dry condition. Hardened AISI 4340 is considered to be a difficult-to-machine material, and hence, recommendable machining conditions need to be found out. Favourable flat continuous chip is acquired at a cutting velocity of 231 m/min and at a feed of 0.08 mm/rev. At 391 m/min cutting velocity, cutting edges are detected to have worn-out quite fast.Keywords
Machining, Turning, Cutting Force, Chip, Insert, Coated Carbide.References
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- Machinability Study on Hard AISI 4340 Steel with Carbide Cutting Tools
Abstract Views :223 |
PDF Views:1
Authors
Affiliations
1 Department of Mechanical Engineering, Bankura Unnayani Institute of Engineering, Bankura-722146, West Bengal, IN
1 Department of Mechanical Engineering, Bankura Unnayani Institute of Engineering, Bankura-722146, West Bengal, IN
Source
Indian Science Cruiser, Vol 35, No 6 (2021), Pagination: 16-22Abstract
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
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