自动介层墙壁高度补偿用于基于线的定向能量沉积增材制造
Jian Qin1, Javier Vives2, Parthiban Raja2
1Welding and Additive Manufacturing Centre, Cranfield University, Cranfield MK43 0AL, UK.
Sensors (Basel, Switzerland)
|October 28, 2023
概括
本研究通过监测层高度来解决基于电线的定向能量沉积增材制造 (w-DEDAM) 的挑战. 它通过使用过程参数调整来有效补偿墙壁高度差异,从而提高零件质量.
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
- 添加剂制造 添加剂制造 添加剂制造
背景情况:
- 基于电线的定向能量沉积增材制造 (w-DEDAM) 在保持一致的层高度和与CAD模型对齐墙壁高度方面面临挑战.
- 过程的不确定性和环境因素,特别是在延长的建造时间,有助于这些尺寸不准确.
- 精确和高效的过程中的几何测量对于工业 w-DEDAM 应用至关重要.
研究的目的:
- 研究工艺参数对间层沉积高度的影响,特别是在墙壁的过渡区域.
- 探索在w-DEDAM中使用几何监测数据进行实时层间墙壁高度补偿.
- 为了提高 w-DEDAM 的尺寸精度和零件质量.
主要方法:
- 使用连贯范围解析干扰度 (RRI) 传感器在工艺过程中监测层高度.
- 分析了不同壁区域和不同过程参数下的层间沉积高度的行为.
- 根据几何监测和沉积行为的过程参数确定控制点.
主要成果:
- 演示了RRI传感器用于准确和高效的工艺中层高度测量的能力.
- 成功地将各种工艺参数应用于特定的墙壁区域,以弥补高度差异.
- 在两到三层内实现了墙壁高度差异的补偿.
结论:
- 在 w-DEDAM 中实施有效的层间墙壁高度补偿策略时,几何监测信息非常有价值.
- 基于现场测量的过程参数的自适应控制可以显著提高尺寸精度.
- 开发的方法提供了一个可行的解决方案,用于提高工业 w-DEDAM 的零件质量和一致性.
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