一种大型金属环筒件形性协同高效制造方法
By employing a combined process of roll forming, laser welding, and ring rolling, the problems of lengthy processes, poor welding quality, and low precision in the manufacturing of large metal rings have been solved, enabling the efficient and low-cost manufacturing of high-strength rings suitable for aerospace, energy, and rail transportation industries.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CENT SOUTH UNIV
- Filing Date
- 2026-01-14
- Publication Date
- 2026-07-17
AI Technical Summary
Existing manufacturing processes for large metal rings suffer from problems such as long process chains, poor welding quality, low dimensional accuracy, and difficulty in efficiently manufacturing large-sized rings under hardened material conditions, especially in terms of welding strength, forming accuracy, and material adaptability.
By employing a synergistic process of roll forming, laser welding, and ring rolling, combined with a high-power fiber laser and a ring rolling mill, continuous roll forming, single-pass multiple welding, and dynamic recrystallization of metal sheets are achieved. The weld structure is strengthened through dynamic recrystallization and strain-induced martensitic phase transformation. Combined with stress-relief annealing, high-strength and high-precision large metal rings are formed.
It significantly shortens the manufacturing process chain, improves the strength of welded joints and the precision of ring components, and reduces energy consumption and costs. It is suitable for the manufacturing of high-precision ring structures using high-performance materials, especially in the aerospace, energy and rail transportation fields.
Smart Images
Figure CN121551427B_ABST