Paul Jones says
This is a drawn-arc aluminium dent repair station for thin car body panels. I use it to weld aluminium pulling keys into panels and apply a pull using the included lifting rod or elongate bars, which is useful in creases and restricted areas. The gun’s high-precision linear motor with digital control and two independently adjustable ground electrodes give consistent control of the weld cycle; setting the process to match material and key type is important. A practical technical consideration is consumable selection — aluminium keys and the correct thread style are supplied — and ensuring every weld has good, stable grounding. In my experience a common workshop issue is mixing steel and aluminium consumables or poor key fitment, which reduces pull strength and increases rework. When configured and used correctly the drawn-arc process gives reproducible, deep repairs on aluminium with less post-repair preparation than capacitor-discharge machines.
Paul Jones, Technical Director