基于Dynaform的波形片成形回弹研究

发布时间：2018-04-20 11:08

本文选题：波形片 + 回弹　；参考：《锻压技术》2015年03期

【摘要】：以某离合器波形片为研究对象,利用Dynaform有限元软件对波形片的成形回弹进行数值模拟,分析了波形片回弹前与回弹后的应力分布,研究了模具间隙及板料厚度对波形片回弹后成形高度的影响。模拟分析表明,波形片弯曲成形的圆角处变形比较剧烈,其应力值较其他区域值更大,且回弹后应力值的减小使得板料发生回弹,而回弹使得波形片成形高度降低,从而影响离合器从动盘总成的弹性;波形片的成形高度随着模具间隙的增大而减小,而随着板料厚度的增加而增大。试验结果表明,当板料厚度分别为0.6和0.8mm时,试验值与模拟值的误差变化范围分别为5.44%~7.54%和4.52%~5.93%,模拟结果与试验结果取得较好的吻合性。
[Abstract]:Taking a clutch corrugated plate as an object of study, the forming springback of a wave-form sheet was simulated by using Dynaform finite element software, and the stress distribution before and after springback of the wave-form sheet was analyzed. The effects of die clearance and sheet metal thickness on the springback height of the corrugated sheet were studied. The simulation analysis shows that the deformation at the corner of the wavy sheet is more severe, and the stress value is larger than that in other regions, and the reduction of the springback stress value makes the sheet material rebound, and the springback results in the reduction of the forming height of the corrugated sheet. Thus, the elasticity of the clutch follower assembly is affected, and the forming height of the waveform plate decreases with the increase of the die clearance, and increases with the increase of the thickness of the sheet metal. The results show that when the thickness of sheet metal is 0. 6 and 0.8mm, the error range between the test value and the simulated value is 5.447.54% and 4.52% respectively. The simulation results are in good agreement with the test results.
【作者单位】：江苏食品药品职业技术学院机电工程系;江苏财经职业技术学院机械电子与信息工程学院;
【基金】：2013年度省科技支撑计划(工业)重点项目课题(BE2013009-4) 淮安市工业支撑项目(HAG2011014)
【分类号】：TG386

【共引文献】