钢圈锁圈槽喷丸工艺参数-表面应力场的函数模型研究  

Research on Functional Model of Shot Peening Parameters of Lock Ring Groove of Wheel Rim-Surface Stress Field

作　　者：梁潇帝 石光林[1] 王光正 商搏世 周雪兆 LIANG Xiaodi;SHI Guanglin;WANG Guangzheng;SHANG Boshi;ZHOU Xuezhao(School of Mechanical and Transportation Engineering,Guangxi University of Science and Technology,Liuzhou 545006,China)

机构地区：[1]广西科技大学机械与交通工程学院,广西柳州545006

出　　处：《热加工工艺》2022年第22期106-110,共5页Hot Working Technology

基　　金：广西科技开发项目(桂科攻1598008-23);广西教育厅教改项目(JGY2018109);广西科技大学研究生创新项目(GKYC201903,GKYC201807)。

摘　　要：为得到钢圈锁圈槽最佳的喷丸工艺参数,并获取表面残余应力与喷丸工艺参数间的对应关系,通过Box-Behnken Design(BBD)设计了17组3因素3水平的喷丸实验方案;运用ABAQUS软件中DEM-FEM耦合模型实现大量弹丸的喷丸仿真,依据实验方案获取表面最大残余应力。通过Design-Expert软件数值拟合,得到喷丸参数与最大残余应力间的函数模型,采用响应面分析法研究喷丸速度、丸粒大小、粒子总数3因素间的交互作用对钢圈锁圈槽表面最大残余应力的影响。对所建立的应力函数模型进行验证,得到目标值与实验值间的误差最大不超过3.3%,验证了函数模型的正确性。建立的函数模型可为钢圈锁圈槽喷丸参数提供多样性参考。In order to obtain the best shot peening process parameters of the lock ring groove of wheel rim, and to obtain the corresponding relationship between the surface residual stress and the shot peening process parameters,through Box-Behnken Design(BBD), 17 groups of three-factor three-level shot peening experiments were designed. The shot peening simulation of a large number of projectiles was realized by using the DEM-FEM coupling model in the ABAQUS software,and the maximum residual stress on the surface was obtained according to the experimental plan. Through the numerical fitting of Design-Expert software, the function model between shot peening parameters and maximum residual stress was obtained. The response surface analysis method was used to study the influence of the interaction among the three factors of shot peening speed, shot size and total number of particles on the maximum residual stress on the surface of the lock ring groove of wheel rim. The established stress function model is verified, and the error between the target value and the experimental value is not more than 3.3%, which can verify the correctness of the function model. The established function model provides a variety of references for shot peening parameters of the lock ring groove of wheel rim.

关 键 词：喷丸强化 DEM-FEM 函数模型 Box-Benhnken 

分 类 号：TG113.25[金属学及工艺—物理冶金]