Evaluation of the Strengthening Effect of Different Surface Treatment Techniques in Steel Crankshaft Manufacturing Industry

At present, electromagnetic induction quenching and nitriding are two commonly used surface strengthening approaches applied in improving the strength of steel parts. In this paper, a comparative study was proposed to research effect these technologies fatigue crankshaft. First modified statistical analysis approach limit load obtain distribution load. Then types crankshafts were selected be object treated by techniques. Finally standard T F hypothesis testing methods conducted evaluation effect. The results showed that compared with approach, can improve crankshaft more obviously, thus is suitable for engineering applications.