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Spot Welding vs Laser Welding – What’s the Difference

Spot Welding vs Laser Welding

Several welding processes can be used to join metal components. While each method offers its advantages and disadvantages, two of the most common are spot welding and laser welding. Here’s a look at how they differ and why you might choose one over the other.

Spot Welding Process

Spot welding is an arc welding process that uses electric current to heat two pieces of metal until they reach a molten state. It then applies pressure to the heated areas, joining them together as one solid piece. The process requires precise timing because the metal needs to be heated for a short time before it cools off again. Spot welding is often used for joining thinner metal sheets, such as those used in car bodies or appliances. It’s also relatively inexpensive and can be automated in large-scale production environments. Spot welding is a type of resistance welding used to join two pieces of metal together. The process works by applying pressure and heat to the two pieces of metal, which causes them to fuse.

Laser Welding Process

Compared to spot welding, laser welding is a much more precise process that uses a focused beam of light to melt two pieces of metal together. The laser beam creates very small weld points, allowing it to create intricate designs or patterns on the surface of the metal. This makes it particularly useful for applications where high precision is required, such as medical implants or jewellery making. Laser welding also doesn’t require additional materials like fluxes or rods, making it more affordable than other types of welding processes. Laser welding is a type of welding that uses a laser to heat the two pieces of metal being joined. The process works by focusing the laser beam on the area where the two pieces of metal are being joined. The heat from the laser melts the metal, which allows the two pieces to fuse.

Difference Between Spot Welding and Laser Welding

  • Spot welding is typically used for joining thin metal sheets together, while laser welding can join thicker metal sheets.
  • Spot welding is faster than laser welding, but laser welding can provide a stronger joint.
  • Spot welding is less expensive than laser welding, but laser welding does not require as much equipment.
  • Laser welds are less likely to be damaged by heat than spot welds.


When it comes down to it, there is no right or wrong answer when choosing between spot welding and laser welding; it all depends on what your project requires and what you have available. Spot welding may be your best bet if you need a quick and cost-effective way to join two pieces of sheet metal. However, if you need something more intricate or precise than spot welders can provide, then laser welders could be your go-to option instead. Whichever method you choose, make sure you understand its strengths and weaknesses, so you can get the most out of it!

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