异形花键截面钢丝辊模拉拔模拟研究  

Simulation research on roller die drawing of special-shaped spline section steel wire

作　　者：郭丰伟[1] 雷君相[1] 江鸿[1] 高文静[1] GUO Feng-wei;LEI Jun-xiang;JIANG Hong;GAO Wen-jing(School of Materials Science ＆ Engineering, University of Shanghai for Science and Technology, Shanghai 200093, Chin)

机构地区：[1]上海理工大学材料科学与工程学院

出　　处：《塑性工程学报》2018年第1期125-130,共6页Journal of Plasticity Engineering

摘　　要：利用Deform-3D软件对异形花键截面钢丝的辊模拉拔工艺过程进行模拟研究。对预成形阶段的辊拉模外齿圆角与内齿圆角进行了参数优化,获得了最佳工艺参数组合,即外齿圆角半径R_1为0.5 mm,内齿圆角半径R_2为0.5 mm。为保证最终产品尺寸,选定整形阶段外齿圆角半径R_1为0.4 mm,内齿圆角半径R_2为0.4 mm。根据最优组合参数进行了模拟仿真与实验验证。模拟结果表明,工件上的圆角均能填充饱满。实验结果表明,零件表面齿形处成形质量较好,外齿与内齿处圆角填充完整。实验结果与模拟结果基本一致,获得了符合产品尺寸的制件。模拟和实验结果有助于研究异形花键截面钢丝辊模拉拔过程的宏观变形,为精密异形丝的成形过程提供了理论指导。Roller die drawing process of the special-shaped spline wire was studied by DEFORM-3D software. In pre-forming process,the parameters of external tooth fillet and internal tooth fillet of roller die were optimized and the optimal combination of parameters was obtained.Namely,the radius of external tooth fillet was 0. 5 mm and the radius of the internal tooth fillet was 0. 5 mm. To ensure the final sizes of the production,in plastic process,the radius of external tooth fillet was selected as 0. 4 mm,the radius of internal tooth fillet was selected as 0. 4 mm.According to the optimal parameters,the analog simulation and experiment were verified. The simulation results show that the tooth fillets of the billet can be filled. The experimental results show that the shape of the surface profile of parts is better. External tooth fillet and internal tooth fillet of the product are filled completely. The experimental results were consistent with the simulation results,and the part in accordance with product sizes was obtained. The simulation and experimental results can contribute to explaining the deformation laws of roller die drawing of special-shape spline section steel wire,which provides important guidance for the forming process of accurate special-shaped wires.

关 键 词：异形花键截面 辊模拉拔 参数优化 有限元模拟 

分 类 号：TG356[金属学及工艺—金属压力加工]