Development of 10kW class YAG laser welding technology

2000 ◽  
Author(s):  
Shuho Tsubota ◽  
Takashi Ishide ◽  
Michisuke Nayama ◽  
Yoshiaki Shimokusu ◽  
Seiji Fukumoto
Keyword(s):  
Laser Welding ◽  
Yag Laser ◽  
Welding Technology

The latest YAG laser welding system – Development of hybrid yag laser welding technology

1997 ◽  
Author(s):  
Takashi Ishide ◽  
Yoshio Hashimoto ◽  
Takashi Akada ◽  
Tadashi Nagashima ◽  
Shyoichi Hamada
Keyword(s):  
Laser Welding ◽  
System Development ◽  
Yag Laser ◽  
Welding Technology ◽  
Welding System

Development of Vertical Welding Technology for Thick Steel Plate using Hot-wire Laser Welding Method

2016 ◽  
Vol 85 (3) ◽  
pp. 282-286
Author(s):  
Motomichi YAMAMOTO ◽  
Kenji SHINOZAKI ◽  
Hiroshi YAJIMA ◽  
Tsutomu FUKUI ◽  
Shin NAKAYAMA ◽  
...  
Keyword(s):  
Laser Welding ◽  
Steel Plate ◽  
Hot Wire ◽  
Welding Method ◽  
Welding Technology ◽  
Thick Steel

Characteristics of the Keyhole and Energy Absorption during YAG Laser Welding of Al-Li Alloy

2011 ◽  
Vol 287-290 ◽  
pp. 2401-2406 ◽  
Author(s):  
Ai Qin Duan ◽  
Shui Li Gong
Keyword(s):  
Laser Welding ◽  
Heat Input ◽  
High Speed ◽  
Laser Energy ◽  
Welding Parameters ◽  
High Speed Camera ◽  
Welding Time ◽  
Welding Condition ◽  
Yag Laser ◽  
Temperature Area

In this paper, the keyhole of YAG laser welding 5A90 Al-Li alloy was observed and measured through the high speed camera. The characteristics of the keyhole and the effects of welding parameters were studied. The characteristics of the absorption of laser energy and the susceptivity for heat input in welding 5A90 were given. The results show that in this welding condition, the keyhole of laser welding 5A90 is nearly a taper and the highest temperature area is in the bottom. There are clear effects of heat input on the characteristics, especially the surface radius of keyhole and plasma/vapor in keyhole. Another phenomena is observed that sometime plasma/vapor could disappear in 0.3ms welding time, and this feature will be more remarkable as decrease of heat input. It shows that the absorption of energy is unsteady. It is known that when this instability reaches a certain value, an unsteady weld will be formed.

scholarly journals Real Time Trajectory Correction System Of Optical Head In Laser Welding

2015 ◽  
Vol 9 (4) ◽  
pp. 265-269 ◽  
Author(s):  
Wojciech Cieszyński ◽  
Michał Zięba ◽  
Jacek Reiner
Keyword(s):  
Laser Beam ◽  
Laser Welding ◽  
Real Time ◽  
Laser Processing ◽  
High Accuracy ◽  
Precise Positioning ◽  
Optical Head ◽  
Welding Technology ◽  
Trajectory Correction ◽  
Correction System

Abstract Application of laser welding technology requires that the laser beam is guided through the whole length of the joint with sufficiently high accuracy. This paper describes result of research on development of optomechatronic system that allows for the precise positioning of the laser head’s TCP point on the edge of welded elements during laser processing. The developed system allows for compensation of workpiece’s fixture inaccuracies, precast distortions and workpiece deformations occurring during the process.

A study of thick plate ultra-narrow-gap multi-pass multi-layer laser welding technology combined with laser cleaning

2015 ◽  
Vol 81 (1-4) ◽  
pp. 113-127 ◽  
Author(s):  
Ruoyang Li ◽  
Jun Yue ◽  
Xinyu Shao ◽  
Chunming Wang ◽  
Fei Yan ◽  
...  
Keyword(s):  
Laser Welding ◽  
Thick Plate ◽  
Laser Cleaning ◽  
Narrow Gap ◽  
Welding Technology
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