摘要
为了揭示高速冷滚打成形中工件金属流动规律,基于高速冷滚打原理得到了滚打轮与工件由点接触到线接触最后为面接触的变化过程,依据最小阻力定律分析了各个阶段的金属流动规律;根据渐开线花键冷滚打的加工工艺,建立了有限元分析模型,对高速冷滚打过程进行了仿真,分析了冷滚打不同时刻的等效应变状况,分析了接触面上一组节点在冷滚打过程中的流动轨迹,给出了节点的流动规律,对比分析了仿真分析与理论分析结果.
In order to achieve the metal flow law in high-speed cold roll-beating,a contact state changing process from point contract to line contract and finally as face contract is achieved on the basis of the principle of high-speed cold roll-beating.Each stage of the metal flow pattern is analyzed according to the law of least resistance.A finite element analysis model is established based on the processing of involute spline,and a high-speed cold rolling forming process was simulated.The equivalent strain on different moments and the flow path of a set of nodes of the contact suiface are analyzed,and the flow law of each node is obtained.The simulation analysis is compared with theoretical analysis results.
出处
《河南理工大学学报（自然科学版）》
CAS
北大核心
2014年第4期467-471,共5页
Journal of Henan Polytechnic University（Natural Science）
基金
国家自然科学基金资助项目(51075124
50975229)
关键词
高速冷滚打
金属流动规律
点接触
线接触
面接触
high-speed cold roll-beating
metal flow law
point contract
line contract
face contract
