A fastener warm-up-cold-up combined forming process
By using a warm-cold heading composite forming process, and utilizing a temperature gradient and a closed-loop water cooling system, the synergistic effect of warm heading and cold heading is achieved, which solves the problems of high energy consumption and short mold life, improves dimensional accuracy and material utilization, reduces forming force, and extends mold life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- WENZHOU XINBAO FASTENER CO LTD
- Filing Date
- 2026-05-27
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies have high energy consumption and are prone to producing coarse grains when using a single warm heading process, while the single cold heading process has high forming force and short mold life, and the two have not been effectively coordinated.
The process employs a warm-cold heading composite forming process. A temperature gradient is created through segmented heating. Warm heading pre-forming is used to reduce the deformation resistance of the head. The final forging temperature is controlled by a closed-loop water cooling system. Subsequently, multi-station progressive deformation is carried out in the cold heading finishing stage to achieve the synergistic cooperation between warm heading and cold heading.
It reduces molding force by 40%-60%, improves dimensional accuracy by 1-2 levels, extends mold life by 2-3 times, improves grain size by 1-2 levels, achieves material utilization of over 95%, and reduces energy consumption by 20%-30%.
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Figure CN122400488A_ABST
Abstract
Citation Information
Patent Citations
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