摘要
等径角挤压过程中施加背压,可以有效地改善材料微观组织和力学性能。运用上限理论推导出了带背压等径角挤压的挤压力解析式,结合实验进行验证,分析了背压作用的影响因素及背压效果,为等径角挤压的工艺优化、背压施加方式、模具设计及设备选择,提供了可行的方法。
Applying back pressure during equal channel angular pressing（ECAP） may improve the process for better control of microstructure and property,An upper-bound solution to extrusion force of equal channel angular pressing with back pressure during a single pass was derived and verified with experiments.The effecting factors and effect of back pressure were discussed.The results provide a feasible method for ECAP process optimization,tooling design and equipment selection.
出处
《塑性工程学报》
CAS
CSCD
北大核心
2011年第2期28-32,共5页
Journal of Plasticity Engineering
基金
国家自然科学基金资助项目(50875072)
霍英东教育基金资助项目(121053)
安徽省优秀青年科技基金资助项目(10040606Y21)
关键词
等径角挤压
背压
上限解
挤压力
equal channel angular pressing（ECAP）
back-pressure
upper-bound solution
extrusion force
