研究和多目标优化Al6061/Mg/MoS2复合材料的WEDM参数使用BBD和NSGA-II的复合材料
Vagheesan Senthilkumar1, Anbazhagan Nagadeepan1, K K Ilavenil2
1Department of Mechanical Engineering, SRM TRP Engineering College, Trichy 621105, Tamilnadu, India.
Materials (Basel, Switzerland)
|December 17, 2024
概括
优化线电放电加工 (WEDM) 的Al6061/Mg/MoS2复合材料使用盒子-Behnken (BBD) 设计和NSGA-II算法提高加工效率. 该研究确定了最佳参数,提高了15%的材料去除率,并减少了20%的表面粗度.
科学领域:
- 材料科学与工程 材料科学与工程
- 制造过程 制造过程 制造过程
- 优化算法 优化算法
背景情况:
- 用 (Mg) 和硫化 (MoS2) 增强的6061合金具有独特的加工挑战.
- 优化线电放电加工 (WEDM) 对于提高先进复合材料的效率和表面质量至关重要.
- 现有的WEDM工艺可能无法充分利用新型复合材料的潜力.
研究的目的:
- 为了优化Al6061/Mg/MoS2金属矩阵复合材料的线电放电加工 (WEDM) 工艺参数.
- 提高材料去除率 (MRR) 和最大限度地降低表面粗度 (SR),以提高加工效率和质量.
- 为了验证Box-Behnken (BBD) 设计与非主导排序基因算法II (NSGA-II) 结合的有效性,以实现多目标优化.
主要方法:
- 使用Box-Behnken (BBD) 方法的实验设计,系统地改变WEDM参数:脉冲启动时间,伺服电压和峰值电流.
- 开发一个数学模型,将工艺参数与加工反应 (MRR和SR) 相关联起来.
- 应用非主导排序基因算法II (NSGA-II) 用于多目标优化,以找到帕雷托最佳解决方案.
主要成果:
- 最佳WEDM参数被确定为:脉冲启动时间 (Ton) 为105μs,伺服电压 (SV) 为35V,峰值电流 (PC) 为31A.
- 在优化条件下实现了7.51mm3/min的材料去除率 (MRR) 和1.97μm的表面粗度 (SR).
- 与非优化设置相比,显著改善:MRR增加15%,SR减少20%.
结论:
- 集成的BBD-NSGA-II方法有效地优化了Al6061/Mg/MoS2复合材料的WEDM参数.
- 鉴定到的最佳参数显著提高了加工性能,平衡了高材料去除率与优质表面加工.
- 这项研究提供了一个强大的方法来优化先进金属矩阵复合材料的WEDM.
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