Effect of Preheating before Welding on the Microstructure and the Properties of SA213 T12 and SA387Gr11CL2 Steels Joints on the Example of a Sheet Piling

2016 ◽  
Vol 246 ◽  
pp. 201-206
Author(s):  
Kamil Sieczkowski ◽  
Agnieszka Szczotok
Keyword(s):  
Welded Joints ◽  
Arc Welding ◽  
Submerged Arc Welding ◽  
Welding Method ◽  
Heating Up ◽  
Submerged Arc ◽  
Production Conditions

The paper presents the results of the investigations of welded joints of the tube-flat bar type made of SA213 T12 and SA387Gr11CL2 steels. The joints were produced in two variants: 1) with heating up to 200°C, 2) without heating. The materials were joined by the submerged arc welding method. The temperatures of preheating before welding were determined, and it was verified whether the empiric relations (1) and (2), used to determine the minimal temperature of heating before welding for steel, can be applied under production conditions. The produced welded joints were evaluated quality-wise. Hardness measurements were performed in the particular joint areas. Finally, the effect of preheating on the obtained joints was compared.

Mechanical Behaviour of Welded Joints Achieved by Multi-Wire Submerged Arc Welding

2017 ◽  
Vol 1143 ◽  
pp. 52-57
Author(s):  
Elena Scutelnicu ◽  
Carmen Catalina Rusu ◽  
Bogdan Georgescu ◽  
Octavian Mircea ◽  
Melat Bormambet
Keyword(s):  
Mechanical Behaviour ◽  
Welded Joints ◽  
Arc Welding ◽  
Base Material ◽  
High Strength ◽  
Submerged Arc Welding ◽  
Steel Plates ◽  
Wire Saw ◽  
Api 5L X70 Steel ◽  
Submerged Arc

The paper addresses the development of advanced welding technologies with two and three solid wires for joining of HSLA API-5l X70 (High-strength low-alloy) steel plates with thickness of 19.1 mm. The experiments were performed using a multi-wire Submerged Arc Welding (SAW) system that was developed for welding of steels with solid, tubular and cold wires, in different combinations. The main goal of the research was to assess the mechanical performances of the welded joints achieved by multi-wire SAW technology and then to compare them with the single wire variant, as reference system. The welded samples were firstly subjected to NDT control by examinations with liquid penetrant, magnetic particle, ultrasonic and gamma radiation, with the aim of detecting the specimens with flaws and afterwards to reconsider and redesign the corresponding Welding Procedure Specifications (WPS). The defect-free welded samples were subjected to tensile, Charpy V-notch impact and bending testing in order to analyse and report the mechanical behaviour of API-5l X70 steel during multi-wire SAW process. The experimental results were processed and comparatively discussed. The challenge of the investigation was to find the appropriate welding technology which responds simultaneously to the criteria of quality and productivity. Further research on metallurgical behaviour of the base material will be developed, in order to conclude the complete image of the SAW process effects and to understand how the multi-wire technologies affect the mechanical and metallurgical characteristics of the API-5L X70 steel used in pipelines fabrication.

Development of submerged arc welding method using hot wire

2014 ◽  
Vol 58 (5) ◽  
pp. 713-718 ◽  
Author(s):  
Tadahisa Tsuyama ◽  
Kiyomichi Nakai ◽  
Takumi Tsuji
Keyword(s):  
Arc Welding ◽  
Submerged Arc Welding ◽  
Hot Wire ◽  
Welding Method ◽  
Submerged Arc

SUBMERGED ARC WELDING TECHNOLOGY

2021 ◽  
Author(s):  
Кирилл Витальевич Буров ◽  
Анастасия Вячеславовна Полякова
Keyword(s):  
Welded Joints ◽  
Arc Welding ◽  
Submerged Arc Welding ◽  
Electric Arc ◽  
Welding Technology ◽  
Electric Arc Welding ◽  
And Performance ◽  
The Impact ◽  
Submerged Arc

В данной статье раскрываются особенности применения флюса в технологии электродуговой сварки и влияние на характеристики и работоспособность сварных соединений. This article describes the features of the use of flux in the technology of electric arc welding and the impact on the characteristics and performance of welded joints.

Development of Submerged arc Welding Method in a Vertical Upward Position

2012 ◽  
Vol 56 (7-8) ◽  
pp. 64-71 ◽  
Author(s):  
Rie Sakamoto ◽  
Kazuyuki Kobayashi ◽  
Tooru Iijima ◽  
Yutaka Mizo
Keyword(s):  
Arc Welding ◽  
Submerged Arc Welding ◽  
Welding Method ◽  
Submerged Arc

Effect of reheating in multipass submerged-arc welding on delayed fracture resistance of rotor steel welded joints

2019 ◽  
Vol 2019 (3) ◽  
pp. 11-14
Author(s):  
V.Yu. Skulsky ◽  
◽  
S.I. Moravetsky ◽  
M.A. Nimko ◽  
Yu.G. Pashchenko ◽  
...  
Keyword(s):  
Welded Joints ◽  
Arc Welding ◽  
Fracture Resistance ◽  
Submerged Arc Welding ◽  
Rotor Steel ◽  
Delayed Fracture ◽  
Submerged Arc

scholarly journals The Effect of Welding Conditions on Mechanical Properties of Superduplex Stainless Steel Welded Joints

2014 ◽  
Vol 14 (1) ◽  
pp. 14-23 ◽  
Author(s):  
A. Świerczyńska ◽  
J. Łabanowski ◽  
D. Fydrych
Keyword(s):  
Mechanical Properties ◽  
Stainless Steel ◽  
Heat Affected Zone ◽  
Welded Joints ◽  
Arc Welding ◽  
Submerged Arc Welding ◽  
Flux Cored Arc Welding ◽  
Superduplex Stainless Steel ◽  
Zone Microstructure ◽  
Submerged Arc

ABSTRACT The tests results of superduplex stainless steel welded joints made with a different heat input, using automatic submerged arc welding (SAW) and semi-automatic flux-cored arc welding (FCAW) have been presented. Metallographic examinations, the measurements of the ferrite content, the width of the heat affected zone (HAZ) and the hardness of the welds in characteristic areas have been performed. Significant differences in the amount of ferrite in the weld metal and in the heat affected zone microstructure of joints were found.

Sign in / Sign up

Export Citation Format

Share Document