Exhaust gas of vehicle is a big problem today. Reducing the weight of vehicle is desirable to reduce the cost and to improve the efficiency of vehicle. In the previous work, it seemed that the shot peening of suspension spring of vehicle improved the ...
Exhaust gas of vehicle is a big problem today. Reducing the weight of vehicle is desirable to reduce the cost and to improve the efficiency of vehicle. In the previous work, it seemed that the shot peening of suspension spring of vehicle improved the fatigue strength. Compressive residual stress can be obtained up to -792MPa by shot peening.
Fatigue strength of machining spring steel is 425MPa. But fatigue strength of shot peened spring steel increased up to 756MPa.