花键冷敲精密成形过程数值模拟与分析  

Numerical simulation and analysis of cold rolling process for spline

作　　者：贾燕龙[1,2] 付建华[1,2] 刘志奇[1,2] 李永堂[1,2] 宋建丽[1,2] 

机构地区：[1]太原科技大学材料科学与工程学院,山西太原030024 [2]材料成形理论与技术山西省重点实验室,山西太原030024

出　　处：《锻压装备与制造技术》2014年第5期97-100,共4页China Metalforming Equipment & Manufacturing Technology

基　　金：国家自然基金资助项目(51275331);高等学校博士学科点专项科研基金项目(20131415110001);山西省科技重大专项项目(20111101034);山西省自然科学基金项目(2013011022-1)

摘　　要：本文基于ABAQUS软件,采用动态显式有限元法建立了花键冷敲精密成形过程的有限元模型,通过三维数值模拟,研究并揭示了花键冷敲成形过程中滚打力随时间的变化规律和应变分布与演变规律。结果表明:花键冷敲初始阶段滚打力较大,之后平稳上升,并呈现断续周期性变化。分析了冷敲过程结束后,由于齿形部分等效应变分布不均匀,导致花键齿顶出现弓形和齿槽表面出现皱纹等缺陷,提出了改进措施。The FE model of cold rolling process for spline has been established by use ot Oynamlc expuclt nmt~ element method under the ABAQUS software. The changing laws between deforming force, the time, and the strain distribution have been explored through the numerical simulation. The results show that the deforming force is bigger at the initial stage of cold rolling process of spline, then rising steadily in intermittent cyclical changes. The uneven equivalent strain distribution of tooth has caused tooth defects such as the tooth bow and wrinkles. The improving measures have been put forward.

关 键 词：冷敲成形 花键 数值模拟 应变分布 滚打力 

分 类 号：TG335.19[金属学及工艺—金属压力加工]