Research on the Laser Welding Technology of LF21

2014 ◽  
Vol 941-944 ◽  
pp. 2012-2015
Author(s):  
Jia Rui Qi ◽  
Xu Ren Huang ◽  
Hai Xia Sun ◽  
Yan Li Li
Keyword(s):  
Tensile Strength ◽  
Laser Welding ◽  
Pulse Width ◽  
Welded Joint ◽  
Pulsed Laser ◽  
Base Material ◽  
Pulse Frequency ◽  
Pulsed Laser Welding ◽  
Maximum Tensile Strength ◽  
Welding Technology

Traditional welding methods are difficult to adapt to the development of welding technology of aluminum alloys. Laser welding plays an important role in this field increasingly for its advantages. In this investigation, LF21 plate with a thickness of 2mm was welded utilizing the pulsed laser welding and the mechanical properties of the laser welded joints are analyzed. The tensile strength of welded joint is in the range of 196 Mpa to 232 Mpa. The maximum tensile strength is obtained at the working current of 250 A, pulse width of 6 ms and pulse frequency of 2 Hz. The maximum tensile strength can reach 87% of base material. The intensity factor of welded joint is in the range of 74% to 87%. The welded joint can meet the requirements of users.

Research on the Laser Welding Technology of GH4169

2014 ◽  
Vol 633-634 ◽  
pp. 703-706 ◽  
Author(s):  
Jia Rui Qi ◽  
Hua Kai Wei ◽  
Dan Feng Zhang ◽  
Li Han
Keyword(s):  
Tensile Strength ◽  
Laser Welding ◽  
Large Range ◽  
Welded Joint ◽  
Pulsed Laser ◽  
Base Material ◽  
High Tech ◽  
High Tensile Strength ◽  
Pulsed Laser Welding ◽  
Welding Technology

Superalloys have a high tensile strength at elevated temperature, a good stability and reliability in a large range of temperatures. Among these superalloys, GH4169 is widely used as thermal components in the turbojet engine. Traditional welding methods are difficult to adapt to the development of high-tech manufacturing. Laser welding plays an important role in superalloys welding field increasingly for its advantages. In this investigation, superalloy GH4169 plate with a thickness of 1mm was welded utilizing the pulsed laser welding and the mechanical properties of the laser welded joints are analyzed. The maximum tensile strength is 928 Mpa, which is close to the base material tensile strength. The welded joint can meet the requirements of users.

scholarly journals Fuzzy C-Means Partition Cluster Analysis and Validation Studies on a Subset of CiteScore Dataset

2019 ◽  
Vol 8 (9S3) ◽  
pp. 105-107
Keyword(s):  
Cluster Analysis ◽  
Laser Welding ◽  
Validation Studies ◽  
Welded Joint ◽  
Experimental Studies ◽  
Pulsed Laser ◽  
Welding Process ◽  
Pulsed Laser Welding ◽  
Fuzzy C Means

The article deals with promising areas of application of pulsed laser welding for products made of silver-based alloys. The results of experimental studies to improve the quality of the welded joint and the efficiency of the welding process with the use of activated absorption additives are presented

Influence of Peak Power and Pulse Width on the Formability of Nd∶YAG Pulsed Laser Welding TC4 Titanium Alloy

Applied laser ◽  
2014 ◽  
Vol 34 (5) ◽  
pp. 427-432
Author(s):  
胡玉 Hu Yu ◽  
张健 Zhang Jian ◽  
谭小军 Tan Xiaojun ◽  
郭亮 Guo Liang ◽  
张庆茂 Zhang Qingmao
Keyword(s):  
Titanium Alloy ◽  
Laser Welding ◽  
Pulse Width ◽  
Peak Power ◽  
Pulsed Laser ◽  
Pulsed Laser Welding ◽  
Tc4 Titanium Alloy

Influence of Peak Power and Pulse Width on the Formability of Nd∶YAG Pulsed Laser Welding TC4 Titanium Alloy

Applied laser ◽  
2014 ◽  
Vol 34 (5) ◽  
pp. 427-432
Author(s):  
胡玉 Hu Yu ◽  
张健 Zhang Jian ◽  
谭小军 Tan Xiaojun ◽  
郭亮 Guo Liang ◽  
张庆茂 Zhang Qingmao
Keyword(s):  
Titanium Alloy ◽  
Laser Welding ◽  
Pulse Width ◽  
Peak Power ◽  
Pulsed Laser ◽  
Pulsed Laser Welding ◽  
Tc4 Titanium Alloy

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.

The effect of subsequent laser processing on the properties of welded joints made by pulsed laser welding

2021 ◽  
pp. 1-7
Author(s):  
A. V. Bogdanov ◽  
B. V. Buketkin ◽  
A. A. Kholopov ◽  
A. V. Perestoronin ◽  
R. Galiullin
Keyword(s):  
Laser Welding ◽  
Welded Joints ◽  
Laser Processing ◽  
Pulsed Laser ◽  
Pulsed Laser Welding

Effect of shielding gas on the plasma plume in pulsed laser welding

Measurement ◽  
2019 ◽  
Vol 134 ◽  
pp. 25-32 ◽  
Author(s):  
Jie Xu ◽  
Yi Luo ◽  
Liang Zhu ◽  
Jingtao Han ◽  
Chengyang Zhang ◽  
...  
Keyword(s):  
Laser Welding ◽  
Plasma Plume ◽  
Pulsed Laser ◽  
Shielding Gas ◽  
Pulsed Laser Welding

The relation between liquation and solidification cracks in pulsed laser welding of 2024 aluminium alloy

2009 ◽  
Vol 519 (1-2) ◽  
pp. 167-171 ◽  
Author(s):  
F. Malek Ghaini ◽  
M. Sheikhi ◽  
M.J. Torkamany ◽  
J. Sabbaghzadeh
Keyword(s):  
Laser Welding ◽  
Aluminium Alloy ◽  
Pulsed Laser ◽  
Pulsed Laser Welding ◽  
Solidification Cracks
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