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Seam Welding vs Arc Welding – What’s the Difference?

Seam Welding vs Arc Welding

If you’re in the manufSeam Welding vs Arc Welding: What’s the Difference?acturing industry, then you know that welding is a critical part of any production process. But with so many different types of welding out there, which one should you use? Two popular options are seam welding and arc welding. Let’s take a closer look at each type of welding to see how they compare.

Seam Welding

Seam welding is an automated process used primarily for sheet metal fabrication and manufacturing. The process works by passing two flat metals under a resistance weld wheel or bar, which creates heat and pressure to join the two pieces together. Seam welding is fast and efficient, making it ideal for large-scale production runs—but it’s not suitable for all materials and applications.

Arc Welding

Arc welding is a more versatile type of welding than seam welding. It works by creating an electric arc between an electrode and the base material. This causes intense heat that melts both the electrode wire and base material together, forming a strong bond. Since this type of welding can be used on most common metals, as well as some plastics, it’s a popular choice for many projects where strength is key. The downside is that arc welder require more specialized training than other types of welders, so there may be additional costs associated with using this method.

Difference Between Seam Welding and Arc Welding

  • Seam welding is a type of welding that joins two pieces of metal together by passing an electric current through them.
  • Arc welding is a type of welding that uses an electric arc to heat the metal, which melts the metal and allows it to be joined together.
  • Seam welding is faster than arc welding, but it is not as strong.
  • Arc welding is stronger than seam welding, but it is not as fast.
  • Seam welding is typically used for thin pieces of metal, while arc welding is typically used for thicker pieces of metal.


Both seam welding and arc welding have their advantages and disadvantages depending on your project’s needs. Seam welding is great for quickly joining sheet metal components, while arc welding provides more versatility when working with different materials. Ultimately, the best method depends on what you’re trying to accomplish—so make sure to evaluate your options carefully before deciding which option makes the most sense for your business!

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