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Influence of shielding gas and laser irradiation conditions on porosity formation in CO<sub>2</sub> laser welding of aluminium alloy
SummaryThe influence of the shielding gas and laser irradiation conditions on porosity formation in CO<sub>2</sub> laser welding of aluminium alloy were...
文献获取Effect of beam defocusing on porosity formation in laser-MIG hybrid welded TA2 titanium alloy joints
The influence of defocusing distance on porosity formation during laser-MIG hybrid welding of TA2 titanium alloy joints was studied by both experimental...
LASER WELDING OF ZINC-COATED AND UNCOATED STEEL SHEETS AT ATMOSPHERIC AND SUBATMOSPHERIC PRESSURES
In the automotive industry, zinc-coated steel is widely used because of its high corrosion resistance. Many automotive industry companies have tried to ...
Influence of beam space shape on weld formation in laser keyhole welding
In laser welding of metals with a high power continuous COlaser, a so-called keyhole is formed in the material. The keyhole greatly affects the absorpti...
Influence of beam space shape on weld formation in laser keyhole welding
In laser welding of metals with a high power continuous CO$- 2$/ laser, a so-called keyhole is formed in the material. The keyhole greatly affects the a...
Plasma charge sensor for in-process, non-contact monitoring of the laser welding process
Laser keyhole welding is an important modern manufacturing technology. During such welding a plasma cloud is generated and the behaviour of this plasma ...
In-Process Monitoring and Adaptive Control in Laser Micro-Spot Lap Welding of Aluminum Alloy Adaptive Control by Heat Radiation for ...
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 ...
Thermal diffusion in laser beam welding of metals
A theoretical investigation of the temperature and hydrogen concentration as a function of space in an aluminium workpiece during laser beam welding is reported. The driving force for hydrogen transport is thermal diffusion. The diffu...
Keyhole Instability and Its Relation to Porosity Formation in High Power Laser Welding
In high power pulsed and CW laser welding, the characteristic porosity is frequently formed in the weld metal, however its formation mechanism has not b...
Welding in space and the construction of space vehicles by welding; Proceedings of the Conference, New Carrollton, MD, Sept. 24-26, ...
The present conference discusses such topics in spacecraft welding as the NASA Long Duration Exposure Facility's evidence on material properties degrada...
