Wire welding refers to the process of fabricating or shaping a metal wire by assembling, bending, and cutting operations. Therefore, aluminum wire welding is the procedure of joining two or more aluminum wires through fabrication and various sculptural processes. Furthermore, the wires are joined by employing fusion welding techniques which involve melting two or more wires of similar composition. Solid state welding does not involve melting of metals as compared to fusion welding.
The coalescence of metals in solid state welding method takes place below the melting point of the base metals being joined to form the wire. This helps the base metals to retain their original properties, thereby preventing the melting of the base metals. Similarly, there are other welding techniques such as diffusion welding, explosion welding, cold welding, and friction welding, which are employed in welding wires.
The aluminum welding wire market is driven considerably by the automotive industry. The usage of aluminum by U.S. automakers has been increasing every year since federal fuel economy standards, commonly referred to as Corporate Average Fuel Efficiency (CAFÉ) Standards, were first enacted by the U.S. Congress in the year 1975. Automakers are estimated to increase the usage of aluminum welding wires due to increasing stringent guidelines being dictated by several countries. Aluminum welding wire developments. The developments in aluminum welding wire can be attributed to aluminum’s attractive characteristics such as light weight, high strength, versatility in extrusion and casting, and excellent corrosion resistance.
Furthermore, investments in electric power infrastructure is projected to further drive the expansion of the market. The usage of advanced technologies to reduce emission levels, increase fuel efficiency, and improve driving dynamics of the vehicle is increasing in the automotive industry. Therefore, the trend of employing aluminum is anticipated to consequently increase the usage of aluminum welding wires in the automotive industry.
However, aluminum wires get damaged easily and its welding can create porosities. Key challenges posed by welding thin gauge aluminum are distortion, burn-through, and warping. Other common issues related to welding aluminum wire is the feedability of aluminum wire. Aluminum wires are softer and filling the wires with metal fillers through a gun is difficult. These disadvantages of utilizing aluminum in welding wires are key factors that are likely to create a mild negative impact on the expansion of the market.
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