Kemppi Mastertig Provides Microtack Welding
A feature of Kemppi's three-phase Mastertig MLS 3000 and 3003 AC/DC welding systems is the Microtack function, available on the optional ACX control panel. This function has been specifically developed to tack weld carbon, stainless steel and titanium thin sheet components up to around 4mm thickness. Microtack welding resembles spot welding in that it uses a high current pulse to create a low heat input to weld thin sheet materials and thin sheet to thicker sheet materials. This method of TIG welding is made possible by the control technology used in the Kemppi power source, which creates a tailored current pulse that is efficient and fast, a matter of a few dozen milliseconds to create the low heat input. The result is a clean, small tack weld, which is similar to a laser weld in appearance and characteristics, resulting in lower risks in burn. Although Microtack welding is very fast and easy to use, it does not use any filler material and the heat input is low, so there is littl...