工艺参数对高强钢锥形件剪切旋压成形质量的影响

发布时间：2019-04-24 11:36

【摘要】：为研究高强钢锥形件剪切旋压成形过程中工艺参数对旋压件成形质量的影响规律,选取对剪切旋压成形质量影响最大的进给比和旋轮与芯模之间的间隙偏离率两个工艺参数为研究变量,基于ABAQUS软件建立了DP600高强钢锥形件剪切旋压成形过程的数值模拟模型,并以旋压件的壁厚偏差和圆度作为成形质量评价指标。研究结果表明:锥形剪切旋压件侧壁等效塑性应变沿着厚度方向由内侧往外侧逐渐增大;随着进给比和偏离率的增大,锥形剪切旋压件的壁厚偏差和圆度均先减小后增大,在零偏离率和0.5 mm·r~(-1)的进给比下得到的旋压件尺寸精度最优,并且有限元模拟结果和成形试验结果吻合度良好。
[Abstract]:In order to study the influence of technological parameters on the forming quality of high strength steel cone parts in shear spinning process, the influence of process parameters on the forming quality of high strength steel cone parts was studied. Based on ABAQUS software, the numerical simulation model of the shear spinning process of DP600 high strength steel cone parts is established based on the feed ratio and the gap deviation rate between the rotary wheel and the core die, which have the greatest influence on the quality of the shear spinning process, as the research variables, and the numerical simulation model of the forming process of the high strength steel cone parts is established on the basis of the cutting spinning software. The wall thickness deviation and roundness of spinning parts are taken as the evaluation index of forming quality. The results show that the equivalent plastic strain of the side wall of conical shear spinning parts increases gradually from inside to outside along the direction of thickness. With the increase of feed ratio and deviation ratio, the wall thickness deviation and roundness of conical shear spinning parts decrease at first and then increase, and the dimension precision of the spinning parts obtained with zero deviation ratio and feed ratio of 0.5 mm 路r ~ (- 1) is the best. The finite element simulation results are in good agreement with the forming test results.
【作者单位】：华南理工大学机械与汽车工程学院;广州民航职业技术学院飞机维修工程学院;
【基金】：广东省公益研究与能力建设专项项目(2016A010102011)
【分类号】：TG306

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