闭塞模锻成形凸模受力分析  

Analysis of forces acted on punch in flashless die forging

作　　者：梁继才[1] 李义[1] 黄良驹[1] 付沛福[1] 刘化民[1] 

机构地区：[1]吉林大学辊锻工艺研究所,吉林长春130025

出　　处：《吉林大学学报（工学版）》2004年第1期97-101,共5页Journal of Jilin University:Engineering and Technology Edition

基　　金：九五"国家重点科技攻关资助项目(96 A22 03 02(1)).

摘　　要：依据能量原理,利用塑性理论的界限法,结合闭塞模锻成形金属流动分析图和闭塞模锻金属变形的位移速度模式,分析了闭塞模锻成形中凸模的受力情况,得到了凸模受力与锥角的关系公式,并对其进行了优化。结果得到凸模最佳锥角为15°。将研究结果应用于轿车等速万向节星形套闭塞模锻凸模设计中,解决了闭塞模锻工艺中凸模断裂问题,对闭塞模锻凸模设计有一定的指导意义。Based on the energy principles and the limit method in plastic theory in the light of metal flow pattern and displacement-velocity model of metal deformation in flashnless die forging,the forces acted on the punch in this kind of forging was analysed.The relationship between the force acted on the punch and cone angle of the punch was derived and the cone angle of the punch was optimized.It is the result that optimum punch taper is an angle of 15°.The research results were used in design of a punch in flashless die forging for the star-like inner race of constant-velocity universal joint in cars and the fracture problem of punch was solved.

关 键 词：闭塞模锻 成形 凸模 受力分析 

分 类 号：TG386[金属学及工艺—金属压力加工]