scholarly journals Fatigue properties of the fillet welded joint for non-load carrying type using hot-wire laser welding process

2015 ◽  
Vol 81 (828) ◽  
pp. 15-00119-15-00119
Author(s):  
Hiroyuki AKEBONO ◽  
Ryoichi MORIKAWA ◽  
Tadashi KADO ◽  
Masahiko KATO ◽  
Atsushi SUGETA
Keyword(s):  
Laser Welding ◽  
Welded Joint ◽  
Welding Process ◽  
Fatigue Properties ◽  
Hot Wire ◽  
Load Carrying ◽  
Laser Welding Process

Fiber Laser Welding of Noncombustible Magnesium Alloy

2008 ◽  
Vol 580-582 ◽  
pp. 479-482 ◽  
Author(s):  
Yuji Sakai ◽  
Kazuhiro Nakata ◽  
Takuya Tsumura ◽  
Mitsuji Ueda ◽  
Tomoyuki Ueyama ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Magnesium Alloy ◽  
Laser Welding ◽  
Fiber Laser ◽  
Vickers Hardness ◽  
Laser Power ◽  
Welded Joint ◽  
Welding Process ◽  
Fiber Laser Welding ◽  
Laser Welding Process

Noncombustible magnesium alloy AMC602 (Mg-6mass%Al-2mass%Ca) extruded sheet of 2.0mm thickness was successfully welded using a fiber laser welding process at welding speed of 10m/min at 3kW laser power. Tensile strength of the welded joint was about 82 to 88% of that of the base metal. Vickers hardness, tensile strength and micro structural properties are also discussed.

scholarly journals Hot-wire Laser Welding Process Using Laser Diode for Large-Diameter Pipe with Narrow Gap Joint

2015 ◽  
Vol 33 (2) ◽  
pp. 107s-110s ◽  
Author(s):  
Masatomo Todo ◽  
Kenji Shinozaki ◽  
Motomichi Yamamoto ◽  
Kota Kadoi ◽  
Masayuki Yamamoto ◽  
...  
Keyword(s):  
Laser Welding ◽  
Laser Diode ◽  
Large Diameter ◽  
Welding Process ◽  
Narrow Gap ◽  
Hot Wire ◽  
Large Diameter Pipe ◽  
Diameter Pipe ◽  
Laser Welding Process

Segmentation of Molten Pool Infrared Images Using Morphology during High Power Disk Laser Welding

2012 ◽  
Vol 201-202 ◽  
pp. 91-94
Author(s):  
Yan Xi Zhang ◽  
Xiang Dong Gao
Keyword(s):  
Laser Welding ◽  
High Power ◽  
Molten Pool ◽  
Welding Process ◽  
Histogram Equalization ◽  
Welding Quality ◽  
Infrared Images ◽  
Traditional Methods ◽  
Disk Laser ◽  
Laser Welding Process

Configuration of a molten pool is related to the laser welding quality. Analyzing the configuration of a molten pool is important to monitor the laser welding process. This paper proposes a method of segmentation of a molten pool and its shadow during high power disk laser welding, consequently provides the groundwork for reconstruction of the molten pool and analysis of welding quality. Subsection linear stretching histogram equalization was applied to enhance the contrast of the original images firstly, and then edge detection was used to highlight the edges. After that we used the morphology filtering method to produce the segmentation mask, and then combined the mask with the original images to get the final segmentation results. Also, the proposed method was compared with other traditional methods. The experimental results showed that our method not only could give better segmentation results and process large quantities images automatically, but also overcame the less-segmentation problems of traditional methods.

Sign in / Sign up

Export Citation Format

Share Document