What are the advantages of low-frequency pulse welding?

Low-frequency pulse welding (0.5-30Hz) is primarily suitable for TIG welding of non-ferrous metals such as stainless steel, steel, and titanium. It is particularly well-suited for welding thin plates or ultra-thin parts, effectively controlling heat input, reducing deformation, and is commonly used in all-position welding and single-sided welding with double-sided forming processes.

The core advantage of low-frequency pulse welding (0.5-30Hz) in TIG welding of non-ferrous metals such as stainless steel, steel, and titanium lies in its precise control of heat input, making it especially suitable for welding thin plates or ultra-thin parts.

Specifically, its advantages are:

Low arc energy: It can achieve lower heat input with a smaller average current, effectively reducing weld deformation and the heat-affected zone, making it ideal for thin plate welding.

Precise weld formation control: The rapid solidification rate of the molten pool and short high-temperature dwell time ensure penetration depth while minimizing burn-through or flow phenomena, making it particularly suitable for all-position welding and single-sided welding with double-sided forming.

High weld quality: The pulsed current strongly stirs the molten pool and cools rapidly, resulting in a fine weld metal microstructure with minimal dendrite formation, thus improving the joint's mechanical properties.

These characteristics make low-frequency pulsed TIG welding an ideal choice for welding non-ferrous metals such as stainless steel, steel, and titanium, especially suitable for welding applications sensitive to heat input and requiring high precision.