Aluminum Spot Welding for Metal Fabrication
Spot welding (also known as resistance spot welding) is a resistance welding process. This welding process is used for welding two or more metal sheets together by applying pressure and heat from an electric current to the weld area.
An electrical current passes through two copper alloy electrodes to the sheet surfaces. Those surfaces are usually resistive materials such as low-carbon steels. Spot welding is widely used in metal fabrication projects.
Originally, welding was used for steel. Now, aluminum spot welding has become popular. Aluminum is used often in automobiles due it’s lighter weight. When the automobile becomes lighter, it improves in fuel efficiency and driving performance. Aluminum has many other appealing characteristics such as low-density, anti-corrosive nature, durability, and thermal efficient capabilities.
Aluminum conducts electricity and heat very easily. It must be heated quicker than steel to prevent overheating. Aluminum typically requires two-three times the current and one quarter of the weld time as steel. The electrodes must then be water cooled.
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Meta Fab strives to provide the highest quality metal fabrication services. We will use aluminum spot welding when necessary. Contact Meta Fab in Hillsboro, Oregon to get started on your metal fabrication project!