Fatigue life prediction of crankshaft repaired by twin arc spraying

来源期刊：中南大学学报(英文版)2005年第z2期

论文作者：张国庆 王成焘 浦耿强

文章页码：70 - 76

Key words：48MnV； 3Cr13； fatigue life； crankshaft； dynamic simulation； FE

Abstract: This paper used Baumel Jr. and Seeger’s approach estimating fatigue parameters of 48MnV with 3Cr13 coatings. The fatigue life of the crankshaft of a six-cylinder engine, repaired by twin arc spraying 3cr13 deposits, is respectively calculated using different damage model such as S-N method, normal strain approaches, SWT-Bannantine approaches, shear strain approaches, and fatemi-Socie method based on dynamical simulation and FE analysis of crankshaft. The results indicate that the traditional calculation is conservative and that the life of crankshaft repaired by arc spraying is sufficient.