一种金属 / CFRTP复合结构及激光焊接系统
By preparing a mesh-like microtexture on the metal surface and optimizing the laser welding process parameters, the problems of connection strength and stability between metal and CFRTP composite materials were solved, achieving a high-strength welding effect.
CN117047337BActive Publication Date: 2026-07-17NAT HIGH SPEED TRAIN QINGDAO TECH INNOVATION CENT
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- NAT HIGH SPEED TRAIN QINGDAO TECH INNOVATION CENT
- Filing Date
- 2023-09-05
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
Existing laser welding technology cannot achieve high-strength connections between metals and CFRTP composite materials, and the joint performance is unstable. Traditional methods such as riveting and bonding suffer from stress concentration or poor environmental reliability.
Method used
A mesh-like microtexture with specific structure and parameters is prepared on the metal surface. CFRTP resin is then fully filled into the microtexture on the metal surface by laser welding to enhance mechanical interlocking. The laser welding process parameters are optimized to improve the bonding strength and stability.
Benefits of technology
It significantly improves the strength and stability of the metal-to-CFRTP connection joint, achieving a high-strength welding effect.
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Figure CN117047337B_ABST
Abstract
本发明提供了一种金属 / CFRTP复合结构，所述金属 / CFRTP复合结构包括金属与CFRTP的搭接接头；所述搭接接头具体为，金属与CFRTP材料焊接的搭接接头；所述搭接接头的焊接面具有机械嵌合结构。本发明设计了一种具有特定结构和参数的金属 / CFRTP复合结构，通过在金属基板表面制备特定的微织构，将CFRTP板材与处理后的金属基板待连接部位叠放固定，在一定压力下完成激光连接获得牢固接头。本发明通过在金属表面制备特定结构和参数的微织构，使树脂充分填充于金属基板表面微织构，大大促进了金属和CFRTP之间的机械嵌合作用，从而提高金属与板材激光连接的结合强度和稳定性。
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