Megmeet’s unique Mixed Pulse process represents a significant step forward in MIG/MAG welding technology. It combines the advantages of a stable pulsed arc with the precise material transfer control characteristic of a short-circuit transition. Thanks to advanced control algorithms that dynamically modulate the current parameters in the pulse cycle, adding elements characteristic of a short-circuit, the arc becomes lower, more concentrated and exhibits much greater resistance to external disturbances, such as changes in the length of the free wire exit.

In practice, this means the welder can achieve welding speeds that are up to more than 20% higher than standard pulsed methods, without sacrificing weld quality. Deeper fusion, especially when welding thicker materials or in forced positions, is another key benefit. Mixed Pulse technology also minimizes the amount of spatter, reducing finishing time. In addition, less heating of the welding fixture’s consumable parts translates into longer life and lower operating costs. This process is particularly effective for welding carbon and stainless steels, and is recommended for robotic applications where stability and speed are key.

The Flexible Short-circuit Transition process is Megmeet’s answer to the need for superior weld quality with minimal spatter in DC short-circuit welding. The key to the success of this technology is the precise detection of the moment of liquid metal droplet constriction and the use of an innovative current “chopping” technique. Just as the droplet is about to break away from the electrode wire and move into the weld pool, the control system rapidly reduces the current to a level that only supports the arc. This allows the droplet to pass into the weld pool in a remarkably calm manner, eliminating the violent “explosions” characteristic of a traditional short circuit.

The result is a reduction in spatter by more than 70% compared to conventional DC welding. The spatters that do form are fine and do not permanently adhere to the weld material, significantly reducing or eliminating the need for post-weld cleaning. What’s more, the overall control of the current waveform in this technology allows for a significant reduction in welding line energy. This results in less deformation of the welded part and a narrower heat affected zone, which is critical when welding thin sheets or materials sensitive to overheating. The technology also exhibits excellent gap bridging capability, making it ideal for welding primers or parts with inaccurate joint preparation.

The MEGMEET Artsen III 500P offers advanced synergistic programs dedicated to the welding of stainless steels, including a double pulse mode (DP Synergic). This highly specialized process is optimized to achieve not only excellent metallurgical properties of the weld, but also impeccable aesthetics of the face, reminiscent of TIG welding. The Synergic system automatically selects the optimal welding parameters based on the choice of wire type and diameter and shielding gas, greatly simplifying setup.

Dual pulse mode involves superimposing an additional lower-frequency pulse on the main welding pulse. The main (high-frequency) pulse controls precise droplet transfer and ensures arc stability, while the modulating (low-frequency) pulse affects weld pool dynamics and line energy. The result is an exceptionally smooth weld face with a clear, regular scale pattern, which is particularly desirable in the food, pharmaceutical or architectural industries. In addition, precise control of linear energy minimizes the risk of overheating and deformation of thin stainless steel parts while maintaining its corrosion resistance. The DP Synergic function of the Artsen III 500P is a guarantee of superior quality and aesthetics when welding stainless steel.

In addition to its advanced MIG/MAG functions, the MEGMEET Artsen III 500P source is also fully prepared for high-quality DC TIG (Tungsten Inert Gas) welding. The device uses the reliable LIFT TIG arc ignition method (rubbing ignition), which eliminates the risk of tungsten contamination of the weld, a common problem with scraping ignition in less advanced devices. The LIFT TIG process is gentle on the tungsten electrode and provides a clean arc start.

Full digital control of DC TIG welding parameters, such as welding current, current rise and fall times (if available in the detail menu), allows precise adjustment of arc characteristics to the materials to be welded, such as carbon steels, stainless steels, titanium or copper. The ability to TIG weld up to 500A (with the appropriate duty cycle for TIG, which may differ from MIG/MAG) paves the way for the realization of demanding connections where cleanliness and weld quality are crucial, such as in the chemical, power generation and pipeline welding industries. Integrated water cooling is invaluable for TIG welding with high currents, protecting the holder from overheating.