scholarly journals High Heat Input Electro-gas Arc Welding of TMCP Plate for Steel Storage Tanks

2017 ◽  
Vol 35 (6) ◽  
pp. 27-31 ◽  
Author(s):  
Kang-Mook Ryu ◽  
Dae-Woo Kim ◽  
Jin-Woo Lee ◽  
Hwan-Cheol Bang ◽  
Chul-Gyu Park ◽  
...  
Keyword(s):  
Heat Input ◽  
Arc Welding ◽  
High Heat ◽  
Storage Tanks ◽  
High Heat Input

Low Heat Input Welding for Thin Steel Fabrication

2006 ◽  
Vol 22 (02) ◽  
pp. 105-109
Author(s):  
S.M. Kelly ◽  
R.P. Martukanitz ◽  
P. Michaleris ◽  
M. Bugarewicz ◽  
T. D. Huang ◽  
...  
Keyword(s):  
Laser Beam ◽  
Heat Input ◽  
Arc Welding ◽  
Process Development ◽  
High Heat ◽  
Hybrid Laser Arc Welding ◽  
Thin Steel ◽  
High Heat Input ◽  
Time Distortion ◽  
Buckling Distortion

As thinner members are used in marine construction, the use of conventional joining techniques results in significant angular and buckling distortion due to the inherent high heat input with these processes. Several low heat input alternatives, including laser beam, gas metal arc, and hybrid laser arc welding, are explored. The paper focuses on process development, real time distortion measurements, and implementation of these processes.

Low Heat Input Welding for Thin Steel Fabrication

2005 ◽  
Author(s):  
S. M. Kelly ◽  
R. P. Martukanitz ◽  
P. Michaleris ◽  
M. Bugarewicz ◽  
T. D. Huang ◽  
...  
Keyword(s):  
Laser Beam ◽  
Heat Input ◽  
Arc Welding ◽  
Process Development ◽  
High Heat ◽  
Hybrid Laser Arc Welding ◽  
Thin Steel ◽  
High Heat Input ◽  
Time Distortion ◽  
Buckling Distortion

As thinner members are used in marine construction, the use of conventional joining techniques result in significant angular and buckling distortion due to the inherent high heat input with these processes. Several low heat input alternatives, including laser beam, gas metal arc, and hybrid laser-arc welding are explored. The paper focuses on process development, real time distortion measurements and implementation of these processes.

Fatigue crack growth rates on the weld metal of high heat input submerged arc welding

2019 ◽  
Vol 119 ◽  
pp. 43-51 ◽  
Author(s):  
Luiz Henrique Soares Barbosa ◽  
Paulo José Modenesi ◽  
Leonardo Barbosa Godefroid ◽  
Ariel Rodriguez Arias
Keyword(s):  
Fatigue Crack ◽  
Fatigue Crack Growth ◽  
Weld Metal ◽  
Heat Input ◽  
Arc Welding ◽  
High Heat ◽  
Submerged Arc Welding ◽  
High Heat Input ◽  
Crack Growth Rates ◽  
Submerged Arc

scholarly journals Effect of Delta Current and Delta Current Frequency on tensile properties and microstructure of Gas Tungsten Constricted Arc (GTCA) welded Inconel 718 sheets

2019 ◽  
Vol 28 (1) ◽  
pp. 186-200 ◽  
Author(s):  
Tushar Sonar ◽  
Visvalingam Balasubramanian ◽  
Sudersanan Malarvizhi ◽  
Thiruvenkatam Venkateswaran ◽  
Dhenuvakonda Sivakumar
Keyword(s):  
Tensile Properties ◽  
Heat Input ◽  
Arc Welding ◽  
Inconel 718 ◽  
High Heat ◽  
Inconel 718 Alloy ◽  
Current Frequency ◽  
High Heat Input ◽  
Gtaw Process ◽  
Gas Tungsten

AbstractInconel 718 is a nickel-based superalloy which finds major applications in lightweight welded frames and other parts in gas turbine engines. This alloy is frequently joined by gas tungsten arc welding (GTAW) process for clean and precise welds. However, the weldability of Inconel 718 alloy is limited by the high heat input and slower cooling rate in GTAW process. It leads to the segregation of alloying elements and detrimental laves phase formation in weld metal which significantly reduces the tensile properties of the welded joints. To overcome this problem, a newly developed gas tungsten constricted arc welding (GTCAW) process is used for joining Inconel 718 alloy. The main effect of Delta Current (DC) and Delta Current Frequency (DCF) on the tensile properties and microstructure of GTCA welded 2 mm thick Inconel 718 alloy sheets was investigated. Superior tensile properties were exhibited at Delta Current of 50 A and Delta Current Frequency of 4 kHz due to the refinement in fusion zone. Delta Current and Delta Current Frequency showed deleterious effect at higher levels due to the high heat input.

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