Progress and perspectives of in-situ optical monitoring in laser beam welding: Sensing, characterization and modeling
Laser beam welding manufacturing (LBW), being a promising joining technology with
superior capabilities of high-precision, good-flexibility and deep penetration, has attracted …
superior capabilities of high-precision, good-flexibility and deep penetration, has attracted …
A real-time spectroscopic sensor for monitoring laser welding processes
In this paper we report on the development of a sensor for real time monitoring of laser
welding processes based on spectroscopic techniques. The system is based on the …
welding processes based on spectroscopic techniques. The system is based on the …
Monitoring and adaptive control of laser processes
T Purtonen, A Kalliosaari, A Salminen - Physics Procedia, 2014 - Elsevier
Monitoring of laser processes has been researched actively since the 1980's in several
institutes around the world. The goal of process monitoring is to gather information on the …
institutes around the world. The goal of process monitoring is to gather information on the …
Real-time penetration state monitoring using convolutional neural network for laser welding of tailor rolled blanks
Z Zhang, B Li, W Zhang, R Lu, S Wada… - Journal of Manufacturing …, 2020 - Elsevier
In this paper, an innovative monitoring system capable of diagnosing the penetration state
during the laser welding process is introduced, which consists of two main blocks: a coaxial …
during the laser welding process is introduced, which consists of two main blocks: a coaxial …
Seam tracking monitoring based on adaptive Kalman filter embedded Elman neural network during high-power fiber laser welding
This paper proposes a method of seam tracking monitoring during high-power fiber laser
welding. A visual sensor system was employed to capture the infrared images of molten …
welding. A visual sensor system was employed to capture the infrared images of molten …
Towards monitoring laser welding process via a coaxial pyrometer
X Xiao, X Liu, M Cheng, L Song - Journal of Materials Processing …, 2020 - Elsevier
The sensing and controlling of weld metrics, such as weld bead width, depth of penetration
and defects, are important for adopting laser welding technology into the industry to meet the …
and defects, are important for adopting laser welding technology into the industry to meet the …
Monitoring of high-power laser welding using high-speed photographing and image processing
In conjunction with the rapid development of high quality laser welding, industrial
manufacturing has seen a growing demand for process monitoring and diagnostics. This …
manufacturing has seen a growing demand for process monitoring and diagnostics. This …
Infrared image recognition for seam tracking monitoring during fiber laser welding
Seam-tracking ability of a laser-welding system is important for welding process, and the
accurate detection of deviations between the laser-beam focus and the weld seam position …
accurate detection of deviations between the laser-beam focus and the weld seam position …
Detection of weld pool width using infrared imaging during high-power fiber laser welding of type 304 austenitic stainless steel
Z Chen, X Gao - The International Journal of Advanced Manufacturing …, 2014 - Springer
Thermal radiation of a weld pool contains plenty of welding quality information in a high-
power fiber laser welding process, in which the weld pool width can reflect the welding …
power fiber laser welding process, in which the weld pool width can reflect the welding …
Spectroscopic monitoring of penetration depth in CO2 Nd: YAG and fiber laser welding processes
T Sibillano, D Rizzi, A Ancona, S Saludes-Rodil… - Journal of Materials …, 2012 - Elsevier
A method for on-line monitoring of the joint penetration depth is reported, based on the
spectroscopic analysis of the optical emission collected from laser–metal interaction zone …
spectroscopic analysis of the optical emission collected from laser–metal interaction zone …