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通过激光点位控制提高铁性不钢接接头的可塑性
Lidong Gu1, Qi Tang1, Yanqing Li1
1School of Mechanical and Electrical Engineering, Changchun University of Science and Technology, Changchun 130022, China.
Micromachines
|November 25, 2023
概括
激光光束点直径显著影响441铁性不钢接的可塑性. 较大的点直径降低了拉伸强度和延长,需要仔细控制参数以获得最佳的关节特性.
科学领域:
- 材料科学 材料科学 材料科学
- 机械工程 机械工程
- 金工业是金工业的一个方面.
背景情况:
- 铁性不钢在各种工业应用中广泛使用.
- 激光接是不钢部件的常见制造方法.
- 了解接参数对材料性能的影响对于确保关节完整性至关重要.
研究的目的:
- 为了研究激光束点直径对接441铁性不钢接头的可塑性的影响.
- 分析具有不同点直径的接接头的微观结构变化和机械性能.
- 确定最佳的激光接参数,以实现441铁性不钢的可塑性.
主要方法:
- 激光接1.2毫米厚的441铁性不钢板,可控制点径.
- 使用各种成像技术对接接头进行微结构分析.
- 接样品的拉伸测试,以评估断裂后的延长和面积缩小.
- 微观结构特征与机械性质的相关性.
主要成果:
- 激光束点径的增加导致了更广泛的接融化和更大的接柱晶体大小.
- 在接中心的等比晶体的比例随着点直径的增加而减少.
- 拉力强度,断裂后的延长,以及接接头的面积减少随着点直径的增加而减少.
- 在斑点直径,微观结构和关节可塑性之间建立了明确的关系.
结论:
- 激光光束点直径是影响441铁性不钢激光接的可塑性的关键参数.
- 优化点径对于控制微观结构演变和机械性能至关重要.
- 需要仔细控制激光接参数,特别是点直径,以实现接接头的可塑性和强度.
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