混合激光清理N52B30发动机活塞冠上的碳沉积物:通过响应表面方法学进行多目标优化
Yishun Su1,2,3, Liang Wang1,3, Zhehe Yao1,3
1College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310023, China.
Materials (Basel, Switzerland)
|August 14, 2025
概括
混合激光清洗有效地去除发动机活塞碳沉积物. 这种先进的方法优化了表面完整性和燃烧效率,通过精确的重制技术延长了发动机寿命.
科学领域:
- 材料科学与工程 材料科学与工程
- 机械工程 机械工程
- 制造业 制造技术 制造技术
背景情况:
- 发动机活塞上的碳沉积降低了燃烧效率,缩短了使用寿命.
- 传统的清洁方法难以平衡有效的碳去除与表面完整性保护.
研究的目的:
- 开发和优化混合激光清洁工艺 (连续波和脉冲激光),以有效地去除发动机活塞碳沉积物.
- 研究关键工艺参数对表面粗度和碳残留率的影响.
主要方法:
- 利用响应表面方法 (RSM),包括Plackett-Burman设计和Box-Behnken设计,用于多目标过程优化.
- 系统地分析了CW激光功率,脉冲激光功率,清洗速度和脉冲重复频率对N52B30发动机活塞的影响.
主要成果:
- 确定了Y方向清洗速度和脉冲激光功率对表面粗度 (Sa) 最有影响.
- 确定CW激光功率作为影响碳残留率 (RC) 的主要因素.
- 实现了优化的参数:CW激光功率为625.8W,脉冲激光功率为250.08W,清洗速度为15.00mm/s,脉冲重复频率为31.54kHz,导致Sa为0.947μm和RC为3.67%.
结论:
- 混合激光清洗过程提供精确的控制,有效地从发动机活塞中去除碳沉积物.
- 优化的参数满足了性能要求,使发动机维护和组件重制的实际应用成为可能.
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