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用不钢进行电缆弧增材制造的屏蔽气体选择方法
Felipe Ribeiro Teixeira1, Vinicius Lemes Jorge1, Fernando Matos Scotti2
1Center for Research and Development of Welding Processes, Federal University of Uberlandia, Uberlândia 38400-901, Brazil.
Materials (Basel, Switzerland)
|July 13, 2024
概括
本研究介绍了在不钢电弧增材制造 (WAAM) 中选择屏蔽气体的方法. 它评估基于Ar的混合物,帮助为薄壁结构中最佳气体金属弧 (GMA) 接做出明智的决策.
科学领域:
- 材料科学 材料科学 材料科学
- 制造业 工程 制造工程
- 接技术 接技术
背景情况:
- 电缆弧增材制造 (WAAM) 对于制造大型金属元件至关重要.
- 屏蔽气体的选择显著影响WAAM过程的质量和效率.
- 奥氏体不钢是WAAM中常见的原料,需要精确的工艺控制.
研究的目的:
- 建议和评估一种方法来选择适合的屏蔽气体WAAM使用奥氏体不钢.
- 为了评估不同多元件的影响,基于Ar的屏蔽气体混合在WAAM过程中.
- 为薄壁WAAM应用中屏蔽气体选择提供决策框架.
主要方法:
- 使用冷金属转移 (CMT) 作为气体金属弧 (GMA) 工艺版本.
- 评估了三种基于Ar的气体混合物,推用于奥氏体不钢的GMA接.
- 评估金属转移的规律性,沉积时间,以及几何/金特性.
- 实施受控的电线输送和沉积速度,以保持一致的参数进行比较.
主要成果:
- 屏蔽气体的组成直接影响WAAM期间的操作性能.
- 不同的气体混合物对金属转移,沉积时间和最终零件质量产生了不同的影响.
- 拟议的方法允许根据商业气体混合物的观察特征进行知情选择.
结论:
- 建立了在奥氏体不钢的WAAM中屏蔽气体选择的经过验证的方法.
- 该研究表明,气体成分是影响WAAM过程结果的关键因素.
- 这项研究促进了优化屏蔽气体选择,通过WAAM改善了薄壁结构的制造.
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