A method of laser-arc twin-wire additive manufacturing of titanium alloys
By employing a dual-wire laser arc additive manufacturing method for titanium alloys, using a Gaussian oscillating laser and a TIG welding torch to feed the wire, the problems of high heat input and uneven microstructure in TC4-DT titanium alloy components during arc additive manufacturing were solved. This method achieves efficient and stable component forming and performance improvement, making it suitable for aerospace equipment manufacturing.
CN122210232APending Publication Date: 2026-06-16HUAZHONG UNIV OF SCI & TECH
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- HUAZHONG UNIV OF SCI & TECH
- Filing Date
- 2026-03-20
- Publication Date
- 2026-06-16
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Figure CN122210232A_ABST
Abstract
The application provides a titanium alloy laser-arc double-wire additive manufacturing method, which comprises the following steps: setting additive manufacturing process parameters, planning a forming path trajectory, pretreating a substrate, performing an additive manufacturing process, and performing a workpiece heat treatment. A Gaussian oscillation laser is used as a front auxiliary heat source, internal flow of a molten pool is strengthened through periodic energy input, branch crystal fracture and re-nucleation are promoted, grain refinement is realized, and a front side weld is preheated. A TIG arc is used as a main heat source, and through double-wire collaborative melting and deposition, efficient forming and structure and performance optimization of a titanium alloy component are realized.
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