摘要
以离合器从动盘总成中的波形弹簧片为研究对象,利用仿真软件ANSYS Workbench模拟了冲裁凸模的疲劳寿命,分析了冲裁凸模的应力分布状况,研究了工艺参数(凸模的气孔直径、过渡圆角半径以及凸模冲裁部分的长度)对波形弹簧片疲劳寿命的影响。模拟结果表明:当采用无气孔凸模并配合防废料上浮型凹模时,凸模的过渡圆角半径以及冲裁部分的长度分别优化至R1.2 mm以及3.5 mm,凸模的疲劳寿命由优化前的24820次提高至优化后的47041次。此外,利用波形片弹簧片的落料级进模进行试验验证,优化后的凸模寿命可以达到42948次,模拟值与试验值的误差为9.53%,从而极大地降低了企业的生产成本。
For the wave spring sheet of clutch disk,it was simulated the fatigue life of blanking punch by finite element software ANSYS Workbench,analyzed the stress distribution of blanking punch,and studied the influence of process parameters（ the diameter of vent in the blanking punch,fillet radius and length of blanking punch） on the fatigue life of wave spring sheet. The simulation results show that when both the blanking punch without vent and the blanking die with anti-waste floating are used,the fillet radius of blanking punch and the length of blanking are optimized to R1. 2 mm and 3. 5 mm respectively,and the fatigue life of blanking punch increases from 24820 times to 47041 times. In addition,the progressive die of wave spring sheet is designed to verify the simulation result,the life of blanking punch after optimization can reach 42948 times with a 9. 53% error between simulated value and experimental value. Therefore,the above process effectively saves the production costs of enterprises.
出处
《锻压技术》
CAS
CSCD
北大核心
2016年第7期18-22,共5页
Forging & Stamping Technology
基金
连云港市中小企业技术创新项目(CK1411)
关键词
波形弹簧片
冲裁凸模
疲劳寿命优化
冲裁工艺
数值模拟
wave spring sheet
blanking punch
optimization of fatigue life
blanking process
numerical simulation
