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A New Optical Fiber System with Hybrid Functions of Power Delivery and Real-Time Remote Observation for YAG Laser Welding
YAG laser Welding and cutting Image information
2009/6/12
In the International Thermonuclear Experimental Reactor (ITER), pipe welding/cutting has to be carried out under severe gamma-ray conditions in a limited space inside the pipe. A laser and image trans...
The Research and Development of the High Reliability Laser Welding System
Laser welding In-situ monitoring Welding system
2009/6/12
High performance laser welding process for thick materials was developed under the photon national project. In the heavy industries thick materials were required to weld with high quality without weld...
Pulsed Laser Irradiation for Triggered Discharge in Arc Welding System
Arc welding Pulsed laser Laser-produced plume
2009/6/9
We propose a new method that uses a plume produced by a pulsed laser for triggering arc discharge in a tungsten inert gas (TIG) arc welding system. When a pulsed laser is focused onto an aluminum allo...
In-Process Monitoring and Adaptive Control in Laser Micro-Spot Welding of Copper
Micro-spot welding of copper Combined laser beams In-process monitoring
2009/6/9
A new procedure of in-process monitoring and adaptive control is developed for micro-spot welding of 0.1-mm-thick copper sheets with combined beams of an AO Q-switched second harmonic YAG laser and a ...
Energy Coupling Rate in Aluminum Welding by CO2 Laser and Nd:YAG Laser
Nd:YAG laser CO2 laser Coupling rate
2009/6/9
The energy coupling rate during welding of Al-Mg-Si alloys with a CO2 laser and a Nd:YAG laser was measured calorimetrically. The coupling rate obtained with the Nd:YAG laser was higher than that with...
In-Process Monitoring and Adaptive Control in Laser Micro-Spot Lap Welding of Aluminum Alloy -Adaptive Control by Heat Radiation for Partially-Penetrated Welding-
Aluminum alloy In-process monitoring Adaptive control
2009/6/8
This paper presents a new procedure for in-process monitoring and adaptive control that has been developed for micro-spot lap welding of A3003 aluminum alloy sheets of 0.1 mm and 1 mm in thickness. Th...