Microstructure and Mechanical Properties of Welding Repair of 5083 Aluminum Alloy

2015 ◽  
Vol 658 ◽  
pp. 151-155 ◽  
Author(s):  
Supachai Sukawet ◽  
Prapas Muangjunburee
Keyword(s):  
Aluminum Alloy ◽  
Arc Welding ◽  
Filler Metal ◽  
Gas Metal Arc Welding ◽  
Mechanical Tests ◽  
Butt Joints ◽  
Aluminum Alloy 5083 ◽  
Metal Arc Welding ◽  
5083 Aluminum Alloy ◽  
Lower Tensile Strength

The repair welding of aluminum alloy 5083 was studied using Gas Metal Arc welding (GMAW) process. The effect of heat cycles from welding was investigated in some details. Butt joints of 6 mm and 3 mm thick were welded with 5356 filler metal. Then weld was removed by grinding and repeatedly welded again for 2 times. After each repair weld, the weld was assessed by macrostructure, microstructure and mechanical tests. The results revealed porosities of all weld samples. The repair welds indicated lower tensile strength compared with the new welds. In addition, all tensile strengths were much lower than the base metal. All samples were fractured at the weld metal.

scholarly journals Thermal deformation of gas metal arc welding on aluminum alloy T-joints

2018 ◽  
pp. 21-26 ◽  
Author(s):  
Mohd Idris Shah Ismail ◽  
Mariyam Jameelah Bahari ◽  
Norsyafiqah Shuib
Keyword(s):  
Aluminum Alloy ◽  
Arc Welding ◽  
Thermal Deformation ◽  
Gas Metal Arc Welding ◽  
T Joints ◽  
Metal Arc Welding

Modeling of Three-Dimensional Gas Metal Arc Welding With Groove

2007 ◽  
Author(s):  
J. Hu ◽  
H. L. Tsai
Keyword(s):  
Weld Pool ◽  
Arc Welding ◽  
Filler Metal ◽  
Gas Metal Arc Welding ◽  
Three Dimensional ◽  
Plasma Arc ◽  
Droplet Impingement ◽  
Sulfur Species ◽  
Metal Arc Welding ◽  
Arc Pressure

This article analyzes the dynamic process of groove filling and the resulting weld pool fluid flow in gas metal arc welding of thick metals with V-groove. Filler droplets carrying mass, momentum, thermal energy, and sulfur species are periodically impinged onto the workpiece. The complex transport phenomena in the weld pool, caused by the combined effect of droplet impingement, gravity, electromagnetic force, surface tension, and plasma arc pressure, were investigated to determine the transient weld pool shape and distributions of velocity, temperature, and sulfur species in the weld pool. It was found that the groove provides a channel which can smooth the flow in the weld pool, leading to poor mixing between the filler metal and the base metal, as compared to the case without a groove.

Microstructure evolution and mechanical properties of 5083 aluminum alloy joints by ultrasonic soldering

2017 ◽  
Vol 31 (16-19) ◽  
pp. 1744040
Author(s):  
Dengquan Han ◽  
Yuanxing Li ◽  
Yongpan He ◽  
Sifu Qiu ◽  
Hui Chen
Keyword(s):  
Shear Strength ◽  
Aluminum Alloy ◽  
Fracture Surface ◽  
Filler Metal ◽  
Aluminum Alloy 5083 ◽  
Zn Content ◽  
Ultrasonic Soldering ◽  
5083 Aluminum Alloy ◽  
Pure Sn ◽  
Shear Strength Reduction

Aluminum alloy 5083 was joined with Sn–[Formula: see text]Zn ([Formula: see text], 5, 9, 30 and 60 wt.%) filler metal by ultrasonic soldering at 400[Formula: see text]C. The joint microstructure consisted of [Formula: see text]-Sn and [Formula: see text]-Al solid–solution phases when using pure Sn solder. Zn-rich phases were observed in the joints with Sn–Zn filler metal. The Zn-rich phases grew thicker and larger with the increase in Zn content in the filler metal. The joints soldered with Sn–30Zn filler metal reached a maximum shear strength of 70 MPa. Joint cracking occurred at the interface of pure Sn and Sn–9Zn solders as indicated by SEM observation of the fracture surfaces. The locations of the fracture surface moved from the interface to the seam when using the Sn–30Zn or Sn–60Zn filler metal. The coarse Zn-rich phases were also observed on the fracture surface using Sn–60Sn solder, which results in a shear strength reduction of the joints.

scholarly journals CARACTERIZAÇÃO E ESTUDO COMPARATIVO ENTRE OS PROCESSOS GMAW E SMAW NA SOLDAGEM DE AÇO ESTRUTURAL ASTM A606, APLICADOS NA CONSTRUÇÃO CIVIL E MINERAÇÃO

2021 ◽  
Vol 9 (209) ◽  
pp. 1-32
Author(s):  
Vinícius de Albuquerque Santos
Keyword(s):  
Arc Welding ◽  
Mechanical Test ◽  
Gas Metal Arc Welding ◽  
Mining Industry ◽  
Welding Process ◽  
Mechanical Tests ◽  
Metal Arc Welding ◽  
Starting Point ◽  
American Society ◽  
Welding Processes

The article makes a general study of Gas Metal Arc Welding (GMAW) and Solid Metal Arc Welding (SMAW) welding, welded on structural steel under the American Society for Testing and Materials (ASTM) A606. The welding process and its applicability in the construction and mining industry are presented. This work has as a starting point, the concepts of welding processes, thermal aspects involved, metallurgy, Thermally Affected Zone (ZTA), recurrent discontinuities and the result of mechanical tests. The material was welded to specimens in both processes. The mechanical test was evaluated, the anchoring in the bending of the material in the weld bead and characteristics of the weld quality. It was found that the material welded with SMAW showed greater tensile strength. It is also concluded, the greater hardness in the ZTA of the material welded with GMAW.

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