强化研磨加工中喷射角度对GCr15轴承钢板塑性变形的影响

利用ABAQUS有限元仿真软件研究不同喷射角度强化研磨加工GCr15轴承钢板过程的塑性变形,得到不同喷射角度与等效塑性应变沿真实路径距离的关系,并通过拉伸试验进行验证。喷射角度为90°的强化研磨加工伸长率为1.4%,相比未经过强化研磨加工的伸长率数值缩减了2.0%。断口收缩率由空白组的4.9%降低到喷射角为90°的2.2%。结合仿真和试验可知,强化研磨加工中喷射角度越大,塑性变形能力越低,材料加工越难。

Effect of Injection Angle on Plastic Deformation of GCr15 Bearing Steel Plate During Reinforced Grinding

The ABAQUS simulation software is used to explore the plastic deformation of different injection angles during enhanced grinding,and to find out the relationship between different injection angles and equivalent plastic strain along the real path distance.It is verified by tensile experiment that the elongation of reinforced grinding with injection angle of 90°is 1.4%,which is reduced by 2.0%compared with that without reinforced grinding.The fracture shrinkage is from 4.9%of blank group to 2.2%of injection angle of 90°,and the decrease value is 2.7%.According to the simulation and experiment,the higher of the injection angle is,the lower the plastic deformation capacity is,and the more difficult it is to further process the material.