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。

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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。

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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.

首次在锤击消除焊接应力的数值模拟研究中，采用接触单元技术建立有限元模型模拟计算锤击作用。

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