论述了感应淬火零件的残余应力形态，并对载货车半轴的材料、硬化层深度及法兰圆角淬火层分布提出了个人见解。

This paper demonstrates residual stress of induction quench parts and personal views about stress distribution of flange corner heat treatment, truck half axle material and depth of hardened layer.

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激光淬火硬化层应力状态为压应力。

The stress state of laser hardened case was press stress.

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