一种异种低塑性合金的局部加热自冲铆接装置及方法
By using a local heating self-piercing riveting device, which combines infrared halogen heating and ultrasonic vibration with spray cooling, the problem of riveting cracks in DP series steel and 7075 aluminum alloy was solved, achieving a high-efficiency, low-damage connection effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHANGAN UNIV
- Filing Date
- 2023-11-30
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies are difficult to effectively connect high-strength but low-plasticity DP series steel and 7075 aluminum alloy. Traditional methods are prone to riveting cracks or material damage.
A local heating self-piercing riveting device is adopted, an infrared halogen heating device is used to focus the heating of the upper plate, an ultrasonic generator and conversion device is used to vibrate and heat the lower plate, and a spray cooling device is used to quickly cool it down. Combined with ultrasonic vibration, internal stress is eliminated and the plasticity of the material is improved.
It improved the quality and efficiency of riveting, reduced the risk of cracking, decreased material damage, and increased production efficiency.
Smart Images
Figure CN117380896B_ABST