摩擦行为在锻造过程中的研究现状与进展  

Developments and prospects of friction behavior during forging process

作　　者：李卫旗[1] 马庆贤[1] 

机构地区：[1]清华大学机械工程系先进成形制造教育部重点实验室,北京100084

出　　处：《锻压技术》2014年第6期9-19,23,共12页Forging & Stamping Technology

基　　金：国家科技重大专项资助项目(2011ZX04014-051);国家重点基础研究发展计划资助项目(2011CB012903)

摘　　要：锻造过程中的摩擦行为是一种多物理场的复杂耦合过程,与接触表面的硬度、润滑状态、接触应力和应变速率等特性有关,其对锻造精度控制、金属流动甚至组织演变起着至关重要的影响。锻造过程中摩擦行为极为复杂,难于对其准确测定和建模分析,致使目前该方面的研究相对较少。本文系统分析了影响锻造过程中摩擦状态的主要因素,概括总结目前锻造成形中常用的摩擦表示模型;从锻造过程中摩擦学研究、摩擦行为对锻造质量的机理研究以及摩擦数值模拟三方面对当前摩擦行为在锻造过程中的研究现状进行综述;最后对锻造过程中摩擦行为研究提出展望。It is a complex multi-physics coupling process for the friction behavior during forging process, which associates with the hard- ness of contact surface, lubrication condition, contact stress and strain rate and plays an important effect on precision control of forging, metal flow and even organization evolution. The complexity of friction behavior during forging process makes it difficult to be accurately measured and modeled, the systematic study of which is relatively few. The main factors influencing friction state during forging process were analyzed systematically, and common friction models used in forging were generally summarized. Current status of friction behavior research during forging process was reviewed in the ways of tribology in forging process, mechanism of the forging quality influenced by friction behavior and friction numerical simulation. Finally, outlooks of friction behavior research of forging process was put forward.

关 键 词：摩擦行为 锻造 复杂耦合 精度控制 金属流动 

分 类 号：TG311[金属学及工艺—金属压力加工] TH117[机械工程—机械设计及理论]