高铁螺纹道钉板式楔横轧轧制成形的可行性分析

Feasibility Analysis of Plate Cross Wedge Rolling for High-speed Rail Screw Spike

高铁螺纹道钉在铁路扣件系统起重要作用,在高速列车的行进过程中,承受巨大的冲击力。高铁螺纹道钉质量的好坏,直接影响到高铁运行的安全性与可靠性,因此对高铁螺纹道钉的性能要求更为苛刻。采用有限元法,对高铁螺纹道钉的轧制成形过程进行了模拟,通过对其成形过程和应变特征分析得到了高铁螺纹道钉板式楔横轧轧制成形是可行的结论。研究结果为控制高铁螺纹道钉的综合力学性能及成形质量具有重要的理论意义和工程价值。

High-speed rail screw spike plays an important role in the rail fastening system. In the process of high-speed train travelling, it bears huge impact. The railway operation safety will be directly affected by the quality of high-speed rail screw spike. The performance requirement of high-speed rail screw spike is much more demanded. Therefore, the rolling forming process of high-speed rail screw spike was simulated by using the finite element methods. Through the analysis of forming process and the characteristics of strain, the conclusion is obtained that the technology of the plate cross wedge rolling high-speed rail screw spike is feasible. The results of the study have great theoretical and practical significance to control comprehensive mechanical properties and forming quality.