对不同AA2014和AA5052合金的摩擦接接参数的优化
Seenivasan Soundararjan1, C Jeevakarunya2, P Raj Kumar3
1Department of Mechanical Engineering, Rathinam Technical Campus, Coimbatore, India.
Scientific reports
|February 3, 2026
概括
这项研究优化了不相似的合金AA2014和AA5052.的摩擦接接 (FSW). 响应表面方法确定了改善接强度,硬度和无缺陷关节的最佳参数.
科学领域:
- 材料科学 材料科学 材料科学
- 机械工程 机械工程
- 制造过程 制造过程 制造过程
背景情况:
- 摩擦接 (FSW) 是一种固态连接工艺.
- 结合不相似的合金在实现最佳机械性能方面存在挑战.
- 优化FSW参数对于无缺陷接和提高性能至关重要.
研究的目的:
- 为了优化不相似的合金AA2014和AA5052.2的摩擦接 (FSW) 参数.
- 研究关键加工变量对接机械性能的影响.
- 为了实现高终极抗拉强度 (UTS),屈服强度 (YS) 和微硬度的平衡.
主要方法:
- 使用响应表面方法 (RSM) 采用盒式设计 (BBD).
- 系统地改变了工具旋转速度,引脚几何,轴负荷和接速度.
- 采用多响应优化,使用可取性函数进行参数选择.
主要成果:
- 确定了最佳FSW条件:每分钟1879.95转,方针,轴承负荷10kN,接速度17.62mm/分钟.
- 实现了平衡的机械性能,UTS = 257.76 MPa,YS = 196.96 MPa,微硬度 = 100.96 Hv.
- 验证实验证实了模型可靠性,UTS和YS的预测误差低于1.5%.
结论:
- 综合的RSM-BBD-可取性方法有效地优化FSW用于不同合金.
- 优化接表现出精细的,平轴的粒度结构和均的沉分布,从而产生了优越的机械性能.
- 开发的方法产生无缺陷的接头,改善了强度-硬度平衡,用于轻质结构应用.
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