简要介绍了等径角挤压成形工艺的特点及目前仍存在的诸多问题,综述了等径角挤压的塑性后处理工艺及其研究进展。传统等径角挤压后再进行其他塑性工艺的后处理,可以有效克服等径角挤压工艺的不足;进一步细化晶粒、增强材料的强度和硬度、改善材料综合性能,是提高等径角挤压制备效率的有效途径。
The characteristics of the process and the problems still existed were briefly described.Post-processing technologies for strengthening the material properties after ECAP processing was reviewed.Post-processing after conventional ECAP processing can effectively overcome deficiency of ECAP process,further refine the grain,enhance the material strength and hardness,and improve the overall performance of materials.This is an effective way for enhancing the efficiency of ECAP process.