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聚合物复合材料脉冲激光表面处理的数值建模
Krzysztof Szabliński1, Krzysztof Moraczewski1
1Department of Polymer Materials Engineering, Faculty of Materials Engineering, Kazimierz Wielki University, Chodkiewicza 30, 85-064 Bydgoszcz, Poland.
Materials (Basel, Switzerland)
|February 13, 2026
概括
本研究引入了一个数值工作流程,以优化聚合物涂料的脉冲激光表面纹理,通过考虑功能表面的扫描重叠和羽毛屏蔽效应来改善槽均性.
科学领域:
- 材料科学 材料科学 材料科学
- 激光物理 激光物理
- 表面工程是什么?表面工程是什么?
背景情况:
- 填充聚合物涂料的脉冲激光纹理提供了功能性表面特性,但由于扫描动力学和羽毛屏蔽而导致不均.
- 实现对选择性化和局部导电性等应用的受控表面修饰仍然是一个挑战.
研究的目的:
- 开发和验证一个三层数值工作流程,用于预测和优化纳米秒脉冲激光表面纹理的热塑性涂层.
- 为了研究扫描重叠,羽毛屏蔽和激光参数对槽均性和切除特性的影响.
主要方法:
- 开发了一个三层数值工作流程,整合了空间解析的切除深度,短暂温度场和软化层再分配的模型.
- 一级包括一个化规律,调节模式切换和一个动态屏蔽因子,用于光扫描.
- 第二层和第三层模型分别采用热效应和毛细血管驱动槽重塑,使用有效的玻璃微球光学传输模型.
主要成果:
- 扫描重叠和屏蔽动态被发现对槽均性比平均激光功率更为关键.
- 局部脉冲计数和屏蔽的变化显著改变了深度统计和废弃方案,即使在相同的平均功率下也是如此.
- 工作流产生了定量地图和指标,展示了控制的回流来平滑,同时保持槽深度.
结论:
- 开发的数值工作流提供了激光参数选择和脉冲激光表面纹理过程优化过程的预测工具.
- 了解扫描动力学,羽毛屏蔽和材料反应之间的相互作用对于实现统一的表面修改至关重要.
- 控制的回流是提高激光纹理聚合物涂层表面均性的可行策略.
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