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兵工学报 ›› 2003, Vol. 24 ›› Issue (2): 226-229.

• 论文 • 上一篇    下一篇

齿轮激光热处理工艺研究

李占国,张宏,石岩,徐春鹰   

  1. 长春理工大学机械工程系,吉林长春,130022
  • 收稿日期:2002-04-01 修回日期:2003-04-01 上线日期:2014-12-25
  • 通讯作者: 李占国

Laser Surface Hardening of Spur Gear

Li Zhanguo, Zhang Hong, Shi Yan ,Xu Chunying   

  1. Changchun University of Science and Technology, Changchun, 130022
  • Received:2002-04-01 Revised:2003-04-01 Online:2014-12-25
  • Contact: Li Zhanguo

摘要: 本文提出了齿轮激光热处理的三项关键工艺技术,即连续偏置、变速扫描和辅助冷却技术。在此基础上,获得了沿齿廓分布的均匀硬化层。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。其硬化层组织由淬硬层、过渡区和基体组成。

关键词: 机械制造工艺与设备 , 齿轮 , 表面强化 , 激光淬火 , 变形

Abstract: Application of laser hardening is a newly developed technique in the surface hardening of spur gears. The three key techniques, namely gear deviation, speed changes, and assisted cooling for the laser surface hardening of spur gears were proposed. Using these techniques, a uniform hardened case along the gear flanks can be obtained easily. Test results show that deformations in laser-hardened gears was negligi?ble to influence gear precision. Ine microstructure of hardened case consists of a hardened zone, heat-af?fected zone and the base materials.

Key words: Technology and equipment for machine building , spur gear , heat treatment , laser harden?ing , deformation

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