scholarly journals Amount of Spatter in Arc Welding for High-Strength Galvanized Steel According to Shielding Gas Composition

2016 ◽  
Vol 15 (1) ◽  
pp. 110-115 ◽  
Author(s):  
Young-Cheol Jeong ◽  
Young-Tae Cho ◽  
Yoon-Gyo Jung
Keyword(s):  
Arc Welding ◽  
High Strength ◽  
Galvanized Steel ◽  
Gas Composition ◽  
Shielding Gas

scholarly journals Porosity Characteristics and Effect on Tensile Shear Strength of High-Strength Galvanized Steel Sheets after the Gas Metal Arc Welding Process

Metals ◽  
2018 ◽  
Vol 8 (12) ◽  
pp. 1077 ◽  
Author(s):  
Seungmin Shin ◽  
Sehun Rhee
Keyword(s):  
Shear Strength ◽  
Arc Welding ◽  
Gas Metal Arc Welding ◽  
Welding Process ◽  
High Strength ◽  
Galvanized Steel ◽  
Tensile Shear Strength ◽  
Tensile Shear ◽  
Tensile Test Specimen ◽  
Metal Arc Welding

In this study, lap joint experiments were conducted using galvanized high-strength steel, SGAFH 590 FB 2.3 mmt, which was applied to automotive chassis components in the gas metal arc welding (GMAW) process. Zinc residues were confirmed using a semi-quantitative energy dispersive X-ray spectroscopy (EDS) analysis of the porosity in the weld. In addition, a tensile shear test was performed to evaluate the weldability. Furthermore, the effect of porosity defects, such as blowholes and pits generated in the weld, on the tensile shear strength was experimentally verified by comparing the porosity at the weld section of the tensile test specimen with that measured through radiographic testing.

Mechanical Properties of Gas Metal Arc Weldments of AISI 304 Stainless Steel Using Different Shielding Gas Compositions

2021 ◽  
Vol 54 ◽  
pp. 1-11
Author(s):  
Augusta Ijeoma Ekpemogu ◽  
Olamide Emmanuel Ariwoola ◽  
Akeem Abiodun Rasheed ◽  
Oladipupo Akinleye Ogundele ◽  
Taiwo Ebenezer Abioye ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Stainless Steel ◽  
Arc Welding ◽  
Gas Metal Arc Welding ◽  
304 Stainless Steel ◽  
Gas Composition ◽  
Shielding Gas ◽  
Aisi 304 Stainless Steel ◽  
Aisi 304 ◽  
Metal Arc Welding

In this work, gas metal arc welding of AISI 304 stainless steel at varying compositions of argon-CO2 shielding environment was performed using an established optimum parametric combination. Thereafter, investigations on the microstructure of the welded joints and mechanical properties of the weldments were carried out. Weldments of excellent surface quality that are void of spatters and pores were obtained when the shielding gas composition (wt.%) range is between 100% argon and 75% argon - 25% CO2. Increasing percentage composition of CO2 beyond 25% resulted in irregular bead formation characterized with spatters and pores. The hardness of the welded joint became significantly high as the CO2 composition in the shielding gas increased. The highest value of 310 HV was obtained when the shielding gas composition was 5% argon- 95% CO2. The least (220 HV) was obtained when the shielding gas was 100% argon. High ultimate tensile strength (596 - 378 MPa) was achieved when the shielding gas composition range is between 100% argon and 75% argon-25% CO2. The UTS dropped significantly as the CO2 composition in the shielding gas increased beyond 25%. It decreased from 336 MPa at 70% argon-30% CO2 shielding gas composition to 133 MPa when 100% CO2 was utilized as the shielding gas. At the end, the effects of the CO2 addition and suitable composition of CO2 addition to argon shielding environment during GMAW of AISI 304 stainless steel have been established.

Tensile Properties of Martensitic Stainless Steel Weldments

2007 ◽  
Vol 23 ◽  
pp. 319-322 ◽  
Author(s):  
R. Yilmaz ◽  
Ali Türkyilmazoglu
Keyword(s):  
Stainless Steel ◽  
Stainless Steels ◽  
Arc Welding ◽  
Martensitic Stainless Steel ◽  
Shielding Gases ◽  
Gas Composition ◽  
Shielding Gas ◽  
Martensitic Stainless Steels ◽  
Gas Tungsten Arc ◽  
Microhardness Profile

In this study, AISI 420 martensitic stainless steels were welded by GTAW (gas tungsten arc welding) using ER 316L consumables. Pure argon, argon + 25% He and argon + 5% N2 were used as shielding gases. The obtained results indicated that shielding gases have some effect on the properties of the martensitic stainless steel weldments. The use of argon+5%N2 provides the highest tensile strength values and higher microhardness profile compared to the other shielding gas composition used.

scholarly journals Effect of shielding gas composition on gas metal arc welding phenomena using rare earth metal added wire

2020 ◽  
Vol 38 (4) ◽  
pp. 438-447
Author(s):  
Manabu TANAKA ◽  
METHONG Titinan ◽  
Hisaya KOMEN ◽  
Masaya SHIGETA ◽  
Tokihiko KATAOKA ◽  
...  
Keyword(s):  
Rare Earth ◽  
Rare Earth Metal ◽  
Arc Welding ◽  
Gas Metal Arc Welding ◽  
Earth Metal ◽  
Gas Composition ◽  
Shielding Gas ◽  
Metal Arc Welding

Influence of shielding gas composition on molten metal flow behavior during plasma keyhole arc welding process

2020 ◽  
Vol 53 ◽  
pp. 431-437 ◽  
Author(s):  
Anh Van Nguyen ◽  
Shinichi Tashiro ◽  
Manh Huu Ngo ◽  
Anh Hoang Le ◽  
Hanh Van Bui ◽  
...  
Keyword(s):  
Molten Metal ◽  
Arc Welding ◽  
Flow Behavior ◽  
Metal Flow ◽  
Welding Process ◽  
Gas Composition ◽  
Shielding Gas ◽  
Arc Welding Process ◽  
Molten Metal Flow
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