Electric resistance welding
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Cold metal transfer (CMT) technology - An overview Open
Cold Metal Transfer technology has revolutionized the welding of dissimilar metals and thicker materials by producing improved weld bead aesthetics with controlled metal deposition and low heat-input. In this study, the process, weld combi…
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Investigation of weld defects in friction-stir welding and fusion welding of aluminium alloys Open
Transportation industries are obliged to address concerns arising from greater emphasis on energy saving and ecologically sustainable products. Engineers, therefore, have a responsibility to deliver innovative solutions that will support e…
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Investigation of metal mixing in laser keyhole welding of dissimilar metals Open
Laser keyhole welding of dissimilar metals has broad applications in various industrial fields. However, dissimilar metal mixing in the molten pool often causes the formation of detrimental intermetallic compounds that can undermine the pe…
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State of the art about dissimilar metal friction stir welding Open
Friction stir welding is a rather recent welding process (patented in 1991 by Thomas et al., ‘Improvements to friction welding’ UK patent application no. 9125978.8, US Patent 5460317, 1995) that has shown great potential for welding dissim…
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Factors influencing Al-Cu weld properties by intermetallic compound formation Open
Dissimilar welding of aluminium (Al) and copper (Cu) has many applications in the electric power, electronic and piping industries. The weldments in these applications are highly valued for their corrosion resistance, heat and electricity …
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Review of recent trends in friction stir welding process of aluminum alloys and aluminum metal matrix composites Open
Welding is a vital component of several industries such as automotive, aerospace, robotics, and construction. Without welding, these industries utilize aluminum alloys for the manufacturing of many components or systems. However, fusion we…
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High-Velocity Impact Welding Process: A Review Open
High-velocity impact welding is a kind of solid-state welding process that is one of the solutions for the joining of dissimilar materials that avoids intermetallics. Five main methods have been developed to date. These are gas gun welding…
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A Review on Friction Stir Welding of Steels Open
Friction Stir Welding (FSW) is the most promising solid-state metals joining method introduced in this era. Compared to the conventional fusion welding methods, this FSW can produce joints with higher mechanical and metallurgical propertie…
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Ultrasonic welding of AZ31B magnesium alloy and pure copper: microstructure, mechanical properties and finite element analysis Open
Magnesium alloy, copper and other light alloys are widely used in aerospace, new energy vehicles, lightweight manufacturing and other fields due to their excellent mechanical properties, but the connection between light alloys has always b…
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Effect of pin length on Friction Stir Spot Welding (FSSW) of dissimilar Aluminum-steel joints Open
Friction stir welding (FSW) has produced a great impact in several industries due to the advantages that this process presents. In particular, the automotive industry has developed a variant of the original process, called Friction Stir Sp…
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Direct welding of glass and metal by 1 kHz femtosecond laser pulses Open
In the welding process between similar or dissimilar materials, inserting an intermediate layer and pressure assistance are usually thought to be necessary. In this paper, the direct welding between alumina-silicate glass and metal (alumin…
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A Review on Welding of Dissimilar Metals in Car Body Manufacturing Open
This paper presents a comprehensive study of the metallurgical challenges of welding dissimilar metals. It also describes the important factors in dissimilar welding which need to be considered for automotive applications. It further inves…
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A Review: Laser Welding of Dissimilar Materials (Al/Fe, Al/Ti, Al/Cu)—Methods and Techniques, Microstructure and Properties Open
Modern structural engineering is impossible without the use of materials and structures with high strength and low specific weight. This work carries out a quantitative and qualitative analysis of articles for 2016–2021 on the topic of wel…
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Investigation on the process parameters of TIG-welded aluminum alloy through mechanical and microstructural characterization Open
Multi-pass TIG welding was conducted on plates (15 × 300 × 180 mm3) of aluminum alloy Al-5083 that usually serves as the component material in structural applications such as cryogenics and chemical processing industries. Porosity formatio…
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Advanced High-Strength Steels for Automotive Applications: Arc and Laser Welding Process, Properties, and Challenges Open
In recent years, the demand for advanced high-strength steel (AHSS) has increased to improve the durability and service life of steel structures. The development of these steels involves innovative processing technologies and steel alloy d…
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Optimization of Friction Stir Welding of Thermoplastics Open
FIGURE 11. Leviapseudes angelikae n. sp. Male. A, Body Lateral view; B, Antennule; C, Antenna. Scale line = 1 mm.
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A review porosity in aluminum welding Open
Aluminum is a material that is often used in the transportation industry because it has a low density, high strength, and good corrosion resistance. The transport structure requires connection to achieve a form as designed. The joint proce…
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Continuous ultrasonic welding of thermoplastic composites: Enhancing the weld uniformity by changing the energy director Open
Continuous ultrasonic welding is a high-speed joining method for thermoplastic composites. Currently, a thin film energy director is used to focus the heat generation at the interface. However, areas of intact energy director remain in the…
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Investigation on Ultrasonic Welding Attributes of Novel Carbon/Elium® Composites Open
Joining large and complex polymer–matrix composite structures is becoming increasingly important in industries such as automobiles, aerospace, sports, wind turbines, and others. Ultrasonic welding is an ultra-fast joining process and also …
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Weldability of Duplex Stainless Steel Open
Duplex stainless steels (DSSs) have many advantages due to the unique structural combination of ferrite and austenite grains. The structural change of these materials is very complex during welding, and it deteriorates the functional prope…
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Main Issues in Quality of Friction Stir Welding Joints of Aluminum Alloy and Steel Sheets Open
Joining of aluminum alloys through friction stir welding (FSW) is effectively employed in several industries (e.g., aeronautics and aerospace) since it guarantees proper weld strength as compared to other joining technologies. Contrarily, …
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Gas tungsten arc welding of 7075 aluminum alloy: microstructure properties, impact strength, and weld defects Open
Precipitation-hardened 7075 (Al-Zn-Mg-Cu) aluminum alloys have low specific density and high strength. Because of these advantages, they are commonly used as construction materials in the aerospace industries. Even though they have such im…
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Weldability of Additive Manufactured Stainless Steel Open
Part size in additive manufacturing is limited by the size of building area of AM equipment. Occasionally, larger constructions that AM machines are able to produce, are needed, and this creates demand for welding AM parts together. Howeve…
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Laser spot welding of laser textured steel to aluminium Open
Laser welding of dissimilar metals (steel and aluminium) was investigated with the aim to increase the maximum tensile shear load of the Fe-Al joints. The increase was achieved by texturing the surface of steel prior to the laser spot weld…
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Laser welding of current collector foil stacks in battery production–mechanical properties of joints welded with a green high-power disk laser Open
The qualification of production systems that enable reliable and stable production processes is a major challenge in manufacturing large-format lithium-ion batteries. During cell assembly, the electrode sheets of the anode and the cathode …
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Study of Melting Methods by Electric Resistance Welding of Rails Open
An analysis of the results of rail operation shows that up to a third of all rail breaks in the railway line and up to 12.9% of all withdrawn acute defective rails are associated with welded joints. This is largely explained by the formati…
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Laser welding of thermoplastics: An overview on lasers, materials, processes and quality Open
This paper offers an overview on the laser welding techniques for thermoplastic materials. The emphases are on four major aspects of the laser welding of plastics: (a) the laser systems, (b) thermoplastic materials, (c) process parameters …
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Numerical simulation and experimental investigation on laser beam welding of Inconel 625 Open
Nickel based superalloy is a high performance alloy that has distinct features such as improved mechanical properties, creep strength, oxidation and corrosion resistance and thermal resistance. Inconel 625 belongs to the family of super al…
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The Characteristics of Laser Welding of a Thin Aluminum Tab and Steel Battery Case for Lithium-Ion Battery Open
During lithium-ion battery packing, joining between battery cases and tabs is challenging for manufacturers due to dissimilar materials of the battery case and the tab, as well as their thicknesses. Laser welding, which has proven to produ…
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Difficulties and redressal in joining of aluminium alloys by GMA and GTA welding: a review Open
The article reviews the difficulties and its redressal in fusion welding (especially the most used welding processes in the industry; gas metal arc (GMA) and gas tungsten arc (GTA) welding) of aluminium alloys. The more excellent thermal c…