Finite Element Analysis Of The Heavy Rail Quenching Processing

Overload and high speed of the rail transport has greatly raised the rail load. As a result, itspeeds up the rail-damage rate. Therefore, it is bound to research more qualified rails to meet therequirement. The effective method to improve the comprehensive mechanical performance ofheavy rails is the induction quenching. The numerical simulation of the induction quenching candemonstrate the temperature and stress field during the rail’s quenching. It is of significantreference value for formulating the rail’s quenching process.The U71Mn heavy rail was considered as a research object. Its two-dimensional model andfinite element model were created on the basis of the heat transfer and finite element thoery.Meantime, factors nonlinear to temperature were taken into consideration, including latent heatof phase change, non-linear thermal properties. The simulation was made more accurate. Andthen the Visual C++was utilized to develop a simulation interface for the finite element analysisof the rail quenching. When corresponding parameters, such as temperature-dependent thermalproperties and operation conditions, were input into the simulation interface, the finite elementsoftware was background activated to numerically simulate the rail quenching. The temperatureand stress field were obtained. The optimal heating time was attained through analysis and thequenching process was formulated. At the same time, air-blast cooling could help reduce theresidual stress and failure rate of quenched rails.The simulation interface can simplify the analysis procedure and avoid a great deal ofrepeated work. It offers actual instructive significance for formulating rail quenching process.