What is the primary difference between pulsed and continuous MIG welding?

Pulsed welding distinguishes itself primarily through its use of intermittent current, which allows for improved heat control during the welding process. This technique involves alternating between high and low current levels, which not only assists in managing the heat input but also minimizes the chances of overheating the work material. The ability to adjust the heat effectively benefits applications where precision and control are essential, such as in thin materials or complex geometries. By reducing the amount of heat generated, pulsed welding helps prevent burn-through and distortion, making it a preferred method for tasks requiring meticulous attention to detail.

Continuous MIG welding, in contrast, maintains a steady flow of current, which can lead to more uniform heat distribution but may not offer the same level of heat management as pulsed welding. While it is suitable for various thicknesses and applications, especially on thicker materials, continuous welding does not provide the same level of control over heat input, potentially resulting in more distortion for thinner materials.

Understanding this core difference helps welders choose the appropriate method for their specific projects, ensuring optimal results based on the material and design requirements.