Design method of ring pass and mandrel for rolling medium-high strength titanium alloy pipe
By optimizing the bottom groove curve, mandrel curve, and sidewall opening of the die, the problems of internal surface instability and cracking during the rolling process of medium and high strength titanium alloy tubes were solved, thereby improving rolling quality and production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- BAOJI TITANIUM IND CO LTD
- Filing Date
- 2026-03-16
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies cannot effectively solve quality problems such as wrinkling on the inner surface, longitudinal cracking, and transverse cracking on the outer surface during the rolling process of medium and high strength titanium alloy tubes, resulting in poor quality stability, long production cycle, and low yield in mass production.
The DM design method is used to optimize the bottom groove curve and mandrel curve of the roll pass, combined with the optimization of the side wall opening of the roll pass. By adjusting the main parameters such as shape factor, taper, gap, and elastic rebound, the metal flow and strain distribution during the rolling process are optimized, and the problems of internal surface instability and cracking are improved.
It significantly improves the problems of internal surface instability and cracking during the rolling process of medium and high strength titanium alloy tubes, enhances rolling quality and dimensional control capabilities, and increases yield and production efficiency.
Smart Images
Figure CN122400301A_ABST