The surface residual stresses of tank track pins after being strengthened by means of rolling, shot peening or rolling plus shot peening were measured by X-ray stress measurer, respectively.
用X射线应力测量仪分别测定了坦克履带销经滚压、喷丸和滚压加喷丸三种表面强化后的表面残余应力。
2
Residual extend stress is produced at weld toe by TIG dressing, while compressing stress of high values by ultrasonic peening.
TIG熔修处理工艺在焊趾区引入了残余拉应力,而超声冲击在焊趾区形成了较大数值的压缩应力。
3
In the numerical simulation of relieving residual stress by hammer peening, contact element technique was firstly adopted for establishing the finite model and calculating the hammer peening.