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Title: | Modeling and Characterization of Aisi S-7 Steel Using The Johnson Cook Model - An Explicit Analysis |
Authors: | Abhinav Ribeiro, Rahul Jain, Ranjana Arunkumar, D |
Keywords: | Chip morphology Finite Element Technique Residual stress Strain hardening |
Issue Date: | 2021 |
Publisher: | IOP Conference Series: Materials Science and Engineering |
Citation: | Vol. 1013, No. 1 |
Abstract: | A two dimensional, uniformly distributed grains model has been developed for AISI S-7 grade Steel and the orthogonal machining process, in the pursuit of determining the various effects of temperature rise, residual stresses, chip morphology, and strain hardening. A Johnson-Cook material model, along with a numerical, technique was used to simulate the machining process using ANSYS 15 academic license. The machining has been carried out at different velocities: 60, 70, and 80 ms-1 and with depths of cut of 2, 3, and 5 mm. Results revealed that the accumulation of tandem grains offers a maximum resistance ahead of the tool-chip interface due to the strain hardening effect, during the metal removal process. This effect leads to a maximum rise in temperature up to 912.59 °C, which has been observed in the secondary shear zone. Serrated chip flow was observed mainly at a low speed of 60 ms-1. The Strain hardening effect was more substantial at 60 ms-1 and 5 mm depth of cut compared to any other machining parameters. A great deal of discussion has been made on the above material machining process that may serve as a useful resource to the tool designer and manufacturing scientist. © Published under licence by IOP Publishing Ltd. |
URI: | https://doi.org/10.1088/1757-899X/1013/1/012007 http://gnanaganga.inflibnet.ac.in:8080/jspui/handle/123456789/2591 |
ISSN: | 1757-8981 1757-899X |
Appears in Collections: | Conference Papers |
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