Micro TIG processes focus on welding small parts of area 5 mm x 5 mm. These are usually delicate parts in the automotive, medical, or electronics industry. Pulsed arc welding has many advantages. For example, it’s a solder-free process and the resultant weld is highly durable when exposed to vibration and heat. In addition, pulsed micro TIG welding is widely applicable for joining high melting point metals, dissimilar metals, and even thin magnet wires of φ0.02mm.
There are two mechanisms to start an arc - a standard high voltage start mechanism and a touch start mechanism. In the former, the standoff between electrode and workpiece is set at a fixed distance. The start arc must then overcome the breakdown of air to bridge the gap. In the latter, the electrode comes down to touch the workpiece and the start arc is generated when they are in close proximity. The weld area is generally protected from atmospheric contamination by use of an inert shielding or cover gas (argon or helium).
AMADA WELD TECH offers two Micro TIG welders with output power from 5 – 50 A or 30 – 300 A. In addition, you will find torches and stands, Lanthanted tungsten electrodes, gas nozzles, cables and safety equipment.