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Nowadays, in the auto industry, the need for improvement of fuel efficiency is getting increased more and more in terms of the global warming, as well as the need of light-weighting of gears, transmission parts. Hence, we’ve studied the relation between the shot peening working conditions and factors for improvement of gear’s fatigue life, and also the relation between the factors for improvement and the fatigue life, applying shot peening to a gear of SNCM220. Also, we examined the relation between the fatigue life and arc height that is utilized as a substitute characteristic for shot peening working conditions, adding its observation here.
Nowadays, in the auto industry, the need for improvement of fuel efficiency is getting more more and more in terms of the global warming, as well as the need of light-weighting of gears, transmission parts. Therefore, we’ve studied the relation between the shot peening working conditions and factors for improvement of gear’s fatigue life, and also the relation between the factors for improvement and the fatigue life, applying shot peening to a gear of SNCM 220. Also, we examined the relation between the fatigue life and arc height that is utilized as a substitute characteristic for shot peening working conditions, adding its observation here.