残余应力分布状态及表面租糙度是评定加工表面层质量的两个重要参数。
Residual stress profile state and surface roughness are the two important parameters for evaluating machined surface layer quality.
测定了小试样表面层的残余压应力场。
Compressive residual stress fields in the surface region of small specimens are determined.
试验结果表明，沿拉削速度方向的表面残余应力为拉应力，最大残余应力在表面层下。
The research shows that residual stress in the direction of broaching rate are tensile at the surface . The maximum residual stress is beneath the surface.
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