研究目的
Investigating the spectral information of the laser welding process using hyperspectral imaging to understand process dynamics and properties of the vapor.
研究成果
The study successfully demonstrated the use of hyperspectral imaging for monitoring laser welding processes, providing insights into the spectral characteristics of the vapor plume. The technique enables the acquisition of absolute temperature fields with high time resolution, which is valuable for understanding process dynamics and comparing experimental and simulation results.
研究不足
The current HSI system configuration only allows monitoring a narrow part of the process zone due to the use of a slit-aperture. The influence of the vapor plume on temperature determination needs further investigation.
1：Experimental Design and Method Selection:
The study employs a hyperspectral imaging (HSI) technique for monitoring laser welding processes. A high-speed camera-based HSI system was developed to derive spectra with high time resolution.
2：Sample Selection and Data Sources:
Carbon construction steel (CC-steel) sheets were used as workpieces for bead on plate welding.
3：List of Experimental Equipment and Materials:
A Trumpf TruDisk 4002 Yb:YAG disc-laser, Trumpf BEO D70 processing optics, Aerotech PRO280LM linear stage, and a high-speed camera (Vison Research Phantom v1210) were used.
4：Experimental Procedures and Operational Workflow:
The interaction zone between laser beam and workpiece was kept stationary to be monitored by the HS-camera and a high-speed camera. Spectra were also acquired with a VIS spectrometer for comparison.
5：Data Analysis Methods:
The spectra were analyzed to determine temperature and spectral characteristics, with Planck’s law used for temperature determination.
独家科研数据包，助您复现前沿成果，加速创新突破
获取完整内容-
PRO280LM
linear stage
Aerotech
Used to feed the workpiece through the laser focus.
暂无现货
预约到货通知
-
QE 65000
VIS spectrometer
Ocean Optics
Used for acquiring spectra of the process emissions.
立即获取同款设备
-
TruDisk 4002
Yb:YAG disc-laser
Trumpf
Used for laser welding with a maximal output power of 4 kW at a wavelength of 1030 nm.
暂无现货
预约到货通知
-
BEO D70
processing optics
Trumpf
Used for focusing the laser beam with a spot diameter of 600 μm.
暂无现货
预约到货通知
-
Phantom v1210
high-speed camera
Vison Research
Used for capturing high-speed images of the welding process.
暂无现货
预约到货通知
-
登录查看剩余3件设备及参数对照表
查看全部
