一种基于分块打印与焊接复合处理技术制备中介机匣的方法、中介机匣及其应用
By employing a combination of block printing and welding technology, the problems of forming size and stress cracking in additive manufacturing of large titanium alloy intermediate casings have been solved, achieving an efficient and reliable manufacturing method and producing intermediate casings that meet the requirements of aero-engines.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANGHAI UNIV OF ENG SCI
- Filing Date
- 2025-12-01
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies are insufficient to effectively address the cracking and deformation issues of large titanium alloy intermediate casings in additive manufacturing due to limited forming dimensions and residual stress accumulation. In particular, they are unable to meet the reliability requirements of aero-engines under high temperature and high load environments.
The process employs a combination of segmented printing and welding technology. The segmented design is optimized through finite element analysis, and combined with high-temperature preheating electron beam printing and heat treatment, followed by precision welding to form a high-strength connection. Finally, quality inspection is carried out.
It has achieved crack-free, high-quality fabrication of large titanium alloy intermediate casings, breaking through the limitations of equipment forming space, significantly improving manufacturing success rate and product reliability, and meeting the high-performance requirements of aero engines.
Smart Images
Figure CN121491349B_ABST