复杂零件的淬火变形是不可避免的，用常规方法很难控制变形。
The quenching deformation of complex sections can not be avoided because it is not easy to control the deformation with conventional method.
检测结果表明：齿轮激光淬火变形很小，不影响齿轮的精度等级。
Test results show that deformations in laser hardened gears was negligible to influence gear precision.
详细探讨影响工件淬火变形的主要因素，提出了相应的预防措施。
The article discusses the main factors that cause the deformation of workpiece during quenching treatment and put forth the prevention measures.
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