扭转振动摆动辗压精密成形机理研究  

Research of precision form mechanism by torsion vibro-rotary forging

作　　者：蔡改贫[1] 徐建波[1] 翁海珊[2] 

机构地区：[1]江西理工大学机电工程学院,江西赣州341000 [2]北京科技大学机械工程学院,北京100083

出　　处：《锻压技术》2006年第1期40-42,53,共4页Forging & Stamping Technology

基　　金：江西省自然科学基金项目(0150029)

摘　　要：介绍了扭转振动摆动辗压的工作原理和实施方法,分析了扭转振动在摆动辗压塑性成形过程中的作用机理,在对模具———工件系统进行运动分析的基础上,确定了摆辗角速度与振动频率之间的关系,建立了扭转振动摆动辗压应满足的速度条件,计算了单周期内扭转振动摆辗的成形时间、沿圆周方向的成形角位移和成形长度等工艺参数;通过本文的理论推导表明,扭转振动摆动辗压的效率与振动频率和进给速度成正比,扭转振动摆动辗压成形的成形效率比纵向振动摆动辗压成形的成形效率高。Vibro-rotary forging working principle and its implemental method are introduced and vibro-rotary working mechanism during plastic deformation is analyzed. On the basis of analyzing the die and workpiece system＇ s kinematic, the analytical relationship between forging angular rate and vibration frequency is defined, the feedrate condition that the vibro-rotary forging should be satisfied is built and some technical parameters, such as distortional angu- lar displacement along the parts circumference and distortional length in a period are calculated. The theoretical derivation shows that the vibro-rotary forging efficiency is directly proportional to the vibration frequency and feedrate and higher than that of longitudinal vibration forging.

关 键 词：摆动辗压 扭转振动 成形机理 成形条件 工艺参数 

分 类 号：TG376[金属学及工艺—金属压力加工]