相关实验视频
Updated: Jan 7, 2026

09:17
Surrogate Model Development for Digital Experiments in Welding
Published on: March 28, 2025
1.8K
在化沉积模型中使用热成像进行挤出路径分析
Juan M Cañero-Nieto1, Rafael J Campo-Campo2, Idanis B Díaz-Bolaño3
1Dept. Civil, Materials and Manufacturing Engineering, Escuela de Ingenierías Industriales, Universidad de Málaga, Andalucía Tech, Campus de Teatinos, 29071 Málaga, Spain.
Polymers
|December 31, 2025
概括
这项研究引入了一种使用热成像检查3D打印机运动是否与编程指令相匹配的新方法. 这有助于提高可靠的聚合物零件的化沉积建模 (FDM) 的质量控制.
科学领域:
- 增材制造 增材制造 增材制造
- 材料科学 材料科学 材料科学
- 质量控制 质量控制 质量控制
背景情况:
- 沉积建模 (FDM) 是一种流行的3D打印方法,但难以保持一致的质量和可靠性.
- 精确控制挤出机头轨迹和速度对于高质量的FDM打印至关重要.
研究的目的:
- 开发和验证一种新的方法来评估与已执行的FDM打印参数相比编程的FDM打印参数的保真性.
- 评估红外热学在FDM过程中的现场质量控制的潜力.
主要方法:
- 该研究整合了长波红外线 (LWIR) 热像和图像处理技术.
- 使用FDM打印了多乳酸 (PLA) 样本,将G码数据与热成像中的动力变量进行比较.
- 该方法专注于分析喷嘴运动和层沉积精度的偏差.
主要成果:
- 开发的方法成功地检测到编程和执行的挤出机头轨迹和速度之间的偏差.
- 热图像分析提供了对层沉积精度的见解,表明了潜在的缺陷形成.
- 非侵入性监测方法证明了其在现场质量控制的能力.
结论:
- 基于热成像的方法提供了一种可靠的工具,用于监控FDM过程并确保产品质量.
- 这种方法可以作为缺陷的早期指标,支持增材制造中的流程优化.
- 这些发现推动了工业增材制造工作流程的智能传感策略.
相关概念视频
Thermal Strain
2.8K
Thermal strain is a concept that arises when we consider how temperature changes affect structures. Unlike the conventional assumption that structures remain constant under load, real-world scenarios often involve temperature fluctuations that can significantly impact these structures. Consider a homogeneous rod with a uniform cross-section resting freely on a flat horizontal surface. If the rod's temperature increases, the rod elongates. This elongation is proportional to the temperature...
2.8K
Thermal expansion and Thermal stress: Problem Solving
2.0K
San Francisco's Golden Gate Bridge is exposed to temperatures ranging from -15 °C to 40 °C. At its coldest, the main span of the bridge is 1275 m long. Assuming that the bridge is made entirely of steel, what is the change in its length between these temperatures?
To solve the problem, first, identify the known and unknown quantities. The initial length (L) of the bridge is 1275 m, the coefficient of linear expansion (α) for steel is 12 x 10-6/°C, and the change in temperature (ΔT) is 55...
To solve the problem, first, identify the known and unknown quantities. The initial length (L) of the bridge is 1275 m, the coefficient of linear expansion (α) for steel is 12 x 10-6/°C, and the change in temperature (ΔT) is 55...
2.0K
Temperature Dependent Deformation
343
In a nonhomogeneous rod made up of steel and brass, restrained at both ends and subjected to a temperature change, several steps are involved in calculating the stress and compressive load. Due to the problem's static indeterminacy, one end support is disconnected, allowing the rod to experience the temperature change freely. Next, an unknown force is applied at the free end, triggering deformations in the rod's steel and brass portions. These deformations are then calculated and added...
343

