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电缆弧的工艺优化,微观结构和机械性能 通过使用基于响应表面方法的DP-GMAW对合金进行增材制造
Wenbo Du1, Guorui Sun2, Yue Li3
1National Key Laboratory for Remanufacturing, Army Academy of Armored Forces, Beijing 100072, China.
Materials (Basel, Switzerland)
|August 26, 2023
概括
双脉冲气体金属弧接 (DP-GMAW) 优化了合金增材制造. 这项研究改进了DP-GMAW参数,实现了具有更好的抗拉强度和延伸度的良好成型元件.
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:
- 双脉冲气体金属弧接 (DP-GMAW) 提供了高性能与低孔径.
- 在DP-GMAW中的周期性池动态影响接金属微结构的精细化.
- 经过验证的优势需要为特定应用进一步优化.
研究的目的:
- 为合金增材制造优化DP-GMAW单通沉积层参数.
- 识别优质的工艺参数,以提高组件的形成.
- 研究DP-GMAW对微观结构和机械性能的影响.
主要方法:
- 使用响应表面方法 (RSM) 进行参数优化.
- 多种多样的双脉冲振幅,双脉冲频率和移动速度.
- 测量沉积层的宽度,高度和透度作为响应值.
主要成果:
- 优化DP-GMAW参数导致形成良好的合金组件.
- 微观结构分析显示,由于弧和异常固化,中间和顶部区域的生长失序.
- 实现了175.2MPa的平均终极抗拉强度和10.355%的延长.
结论:
- DP-GMAW是一种可行的合金增材制造方法.
- 参数优化对于实现所需的组件几何和属性至关重要.
- 独特的再化和固化行为影响微观结构和机械性能.
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