Effect of Welding Parameter of Flux Consumption in Submerged Arc Welding

2020 ◽  
Author(s):  
Sikandar Thakur ◽  
Geetesh Goga ◽  
Avtar Singh
Keyword(s):  
Arc Welding ◽  
Submerged Arc Welding ◽  
Welding Parameter ◽  
Flux Consumption ◽  
Submerged Arc

Influence of Welding Parameter on Bead Geometry of Weld Metal in Submerged Arc Welding

2020 ◽  
Author(s):  
Sikandar Thakur ◽  
Geetesh Goga ◽  
Avtar Singh
Keyword(s):  
Weld Metal ◽  
Arc Welding ◽  
Submerged Arc Welding ◽  
Welding Parameter ◽  
Bead Geometry ◽  
Submerged Arc

Performance Evaluation of Alternating Current Square Waveform Submerged Arc Welding as a Candidate for Fabrication of Thick Welds in 2.25Cr-1Mo Heat-Resistant Steel

2020 ◽  
Vol 142 (4) ◽  
Author(s):  
Uttam Kumar Mohanty ◽  
Yohei Abe ◽  
Takahiro Fujimoto ◽  
Mitsuyoshi Nakatani ◽  
Akikazu Kitagawa ◽  
...  
Keyword(s):  
High Pressure ◽  
Arc Welding ◽  
Submerged Arc Welding ◽  
Pressure Vessels ◽  
Heat Consumption ◽  
Welding Parameters ◽  
Resistant Steel ◽  
Heat Resistant Steel ◽  
Flux Consumption ◽  
Submerged Arc

Abstract The paper evaluates the performance of alternating current (AC) square waveform submerged arc welding (SAW) as a candidate technology for manufacturing thick welds for high-pressure vessels. A new mathematical formulation for calculating melting efficiency in square waveform arc welding is presented. The melting efficiency and the heat consumption are presented as a mathematical model of welding parameters, namely welding current, welding speed, current frequency, and electrode negativity (EN) ratio. The proposed approach is demonstrated through the welding of 2.25Cr-1Mo heat-resistant steel performed over a wide range of welding parameters. The investigation provides deeper insights into the interplay between process parameter, total heat consumption, and melting efficiency. The effect on flux consumption is also explained. The melting efficiency is inversely proportional to flux consumption. The welding heat does not necessarily promote the plate melting. Improper use of welding heat may lead to decreased melting efficiency and increased unwanted melting and consumption of welding flux. Compared to the conventional direct current (DC) power sources, the AC square waveform welding achieves almost the same order of melting efficiency with added advantages of better weld bead shape and flux consumption in a desirable range. The two additional parameters (frequency and EN ratio) of the AC square waveform power source provide more freedom to fine-tune the process and thereby efficiently use welding heat. The results of this investigation will be advantageous to the designers and fabricators of high-pressure vessels using AC square waveform welding.

Optimization of welding materials and conditions for high speed submerged arc welding of spiral pipe.

1986 ◽  
Vol 26 (5) ◽  
pp. 439-444 ◽  
Author(s):  
Toyofumi KITADA ◽  
Hirotaka NAKAGAWA ◽  
Yukio NISHINO ◽  
Katsuyuki SUGA
Keyword(s):  
Arc Welding ◽  
High Speed ◽  
Submerged Arc Welding ◽  
Submerged Arc ◽  
Welding Materials

Calculation of automatic submerged arc welding

2020 ◽  
Vol 8 (7) ◽  
pp. 3697-3699
Author(s):  
Smirnova, Z.V
Keyword(s):  
Arc Welding ◽  
Submerged Arc Welding ◽  
Submerged Arc

New submerged arc welding flux for hardfacing of Hardox steels

2020 ◽  
Vol 62 (10) ◽  
pp. 1010-1016
Author(s):  
Mustafa Kaptanoglu ◽  
Akin Odabasi
Keyword(s):  
Arc Welding ◽  
Submerged Arc Welding ◽  
Welding Flux ◽  
Submerged Arc

METRODE 20.70 Nb

Alloy Digest ◽  
2003 ◽  
Vol 52 (4) ◽  
Keyword(s):  
Fracture Toughness ◽  
Tensile Properties ◽  
Arc Welding ◽  
Nickel Alloys ◽  
Submerged Arc Welding ◽  
Inert Gas ◽  
Nominal Composition ◽  
Oxidation Resistant ◽  
Nickel Base ◽  
Submerged Arc

Abstract Metrode 20.70 Nb is a nickel-base consumable with a nominal composition of Ni, 20% Cr, and 2.5% Nb. This alloy is used to join a variety of oxidation-resistant nickel alloys. The product is a solid wire for tungsten inert gas (TIG), metal inert gas (MIG), and submerged arc welding (SAW). This datasheet provides information on tensile properties as well as fracture toughness. It also includes information on joining. Filing Code: Ni-606. Producer or source: Metrode Products Ltd.

Sign in / Sign up

Export Citation Format

Share Document