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COMPUTER-AID ANALYSIS FOR CRACKING OF 280 CONNECTING ROD OF 16V280ZJ DIESEL LOCOMOTIVE ON QUENCHING PROCESS

280 connecting rod is one of the most important parts for 16V280ZJ diesel locomo- tive, so it needs much better mechanical performance. However, the crack is often generated at the middle section of connecting rod body on heat treatment process. A temperature-phase transformation-stress coupled 3D non-linear mathematical model has been developed to analyze the reasons of cracking. The simulation and experimen- tal results show that the compressive stress on the cracking position is close to the fracture stress of connecting rod and the reasons of crack are mainly contributed to the carbon content excess of original material or the aging of quenchant.

关键词: crack , null , null

NUMERICAL SIMULATION OF HEATING AND QUENCHING PROCESSES FOR A 280 CONNECTING ROD OF 16V280ZJ DIESEL LOCOMOTIVE

J.S. Ye , Z.R. Ye , A. Yang

金属学报(英文版)

A modified temperature-phase transformation-stress coupled 3D non-linear mathemat-ical model and a series of subroutines on the non-liner MARC (MARC Analysis Re-search Corporation) are developed. Then this modified model has been utilized to simu-late the heat treatment processes of 280 connecting rod of 16V280ZJ diesel locomotive.The simulation results are basically in agreement with the experiments, which testifythat the mathematical model and method are feasible. In addition, the simulationcan not only obtain the transient temperature and microstructure of heat treatmentprocess, but also provide a sound scientific basis for the heat treatment workers.

关键词: non-linear , null , null , null

材料期刊网

COMPUTER-AID ANALYSIS FOR CRACKING OF 280 CONNECTING ROD OF 16V280ZJ DIESEL LOCOMOTIVE ON QUENCHING PROCESS

NUMERICAL SIMULATION OF HEATING AND QUENCHING PROCESSES FOR A 280 CONNECTING ROD OF 16V280ZJ DIESEL LOCOMOTIVE

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