楔横轧轧制微观组织演变规律的研究现状与发展

Development and Status of Study on Microstructure Evolvement Regularity of Workpiece of Cross Wedge Rolling

火车车轴、汽车半轴等长轴类零件需求量与日俱增,采用多楔楔横轧精密成形技术生产长轴类零件将是今后其成形的主要趋势。其产品不但应保证基本形状,且要有良好的综合力学性能。因此,研究楔横轧多楔轧制微观组织演变规律,控制产品的最终组织结构,具有重要的理论意义和工程价值。

With more and more demand of long shafts, such as automobile semiaxle and train halfaxle, Multi-wedge Cross Wedge Rolling（MCWR） will be the main technology in forming long shafts. The products formed by MCWR can meet market demand not only in product basic configuration but also in integrated mechanical property. Study on microstructure evolvement regularity of workpiece of MCWR to control final microstructure has great theoretical and practical significance.