K2912-1 - Lincoln Power Wave Advanced Process Module with STT and AC MIG

Technical Overview of the Lincoln Electric Power Wave Advanced Module

The Lincoln Electric Power Wave® Advanced Module (K2912-1) is a sophisticated peripheral designed to significantly expand the process capabilities of the Power Wave® S350, S500, and S700 power sources. This module is engineered to integrate seamlessly into the Power Wave ecosystem via the ArcLink® digital communication protocol, effectively transforming a standard DC power source into a highly versatile AC/DC multi-process system. By attaching this module, operators gain access to advanced proprietary waveforms that are critical for specialized industrial applications.

One of the primary technical functions of the K2912-1 is the enablement of Surface Tension Transfer® (STT®). STT is a controlled short-circuit transfer process that adjusts current independently of wire feed speed, allowing for precise heat input control and minimal spatter. This is particularly vital for open root passes in pipe fabrication where burn-through must be avoided. Additionally, the module provides high-frequency (HF) starting capabilities for TIG welding, eliminating the risk of tungsten contamination associated with scratch-start or lift-arc methods in critical aerospace or nuclear applications.

Furthermore, the Advanced Module introduces AC capabilities to the DC power source, facilitating AC MIG welding. This is essential for aluminum fabrication, where the cleaning action of the AC cycle removes the oxide layer while the penetration cycle ensures structural integrity. The module features intelligent polarity switching, allowing the system to switch between DC+ and DC- or oscillate in AC modes dynamically based on the selected waveform. The unit is housed in a rugged IP23-rated enclosure and is designed to mount directly beneath the compatible Power Wave power source, utilizing the existing footprint to minimize floor space usage in robotic or manual cells.

Integration is streamlined through the 'Tribrid' power module concept, where the S-Series source provides the bus power, and the Advanced Module modifies the output characteristics. This modular architecture allows facilities to standardize on S-Series machines and deploy Advanced Modules only to stations requiring STT or AC aluminum capabilities, optimizing capital expenditure and fleet management.