面向弧形构件表面强韧化处理的感应辅助激光淬火方法
By using induction-assisted laser hardening, combined with an arc-shaped laser spot and a contour-following induction heating coil, uniform hardening and toughening treatment of the surface of arc-shaped components is achieved. This solves the problem of poor consistency in hardness and depth in existing technologies and improves the surface toughness and service life of arc-shaped components.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- WENZHOU UNIV
- Filing Date
- 2023-12-05
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies for surface hardening of curved components suffer from problems such as poor consistency in the hardness and depth of the treatment layer, severe deformation, and easy peeling of the fully martensitic microstructure of the treatment layer, which limit the service performance and service life of the curved components.
An induction-assisted laser hardening method is employed, which involves preparing an arc-shaped laser spot and a contour-following induction heating coil that match the surface of the arc-shaped component. This is combined with induction preheating, laser hardening, and post-induction heat treatment to achieve uniform strengthening and toughening of the arc-shaped component's surface. Specific steps include induction preheating, three-dimensional conformal scanning laser hardening with the arc-shaped laser spot, and post-induction heat treatment, controlling the cooling paths of martensite and austenite to form a multiphase microstructure.
The treatment layer on the surface of the arc-shaped component has been improved in terms of hardness consistency and depth uniformity, which enhances the toughness of the arc-shaped component and improves its surface strength and toughness, thus meeting the strength and toughness requirements of different service conditions.
Smart Images
Figure CN117535473B_ABST