​​​​​Vol. 2, No. 11, 2017, pp. 373-376. 

Shot Peening of Induction coil Hardened Spur Gear Tooth to Avoid Failure  

Pawan Kumar*, M. L. Aggarwal
Department of Mechanical Engineering, YMCA University of Science and Technology, Faridabad-121006, Haryana, India.
​​*Corresponding author’s e-mail:


Spin hardening inductors uses several design parameters and only the gear teeth can be case surface hardened without affecting the other surface of gear. The induction coil hardened gears are typically tempered for less than a minute time as compared to normal tempering process of one hour at a specified temperature. It is observed that the required surface properties on gear are not achieved and needs improvement by shot peening. Effect of shot peening on surface properties of gear has been discussed in the present work. A hardness model has been worked out using response surface methodology for shot peened gear. Present work is about analyzing various surface properties of hardened and shot peened spur gear using spin hardening inductors and comparing it with non-peened surface.

Keywords: Liquid Induction hardness; Spur gear; Response Surface Methodology; Shot peening. 


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International Journal of Modern Science and Technology

ISSN 2456-0235