SUMMARY
Front-panel function selection offers the following welding possibilities:
⚫ DC MMA
⚫ DC TIG
⚫ DC Pulse TIG
⚫ AC MMA
⚫ AC TIG
⚫ AC Pulse TIG
1. For DC MMA - the polarity connection can be selected according to different electrodes. (Refer to
paragraph 3.5)
2. For AC MMA - the magnetic flow caused by DC polarity can be avoided.
3. For DC TIG (DCEP) - is normally used when the workpiece is connected to the positive polarity and
the torch to the negative polarity. This connection offers many advantages including a stable welding arc,
low tungsten pole loss and a narrow and deep weld.
4. For AC TIG (rectangle wave) - the arc is more stable than Sine AC TIG. Simultaneously not only
maximum penetration and minimum tungsten pole loss is obtained, but also a better clearance effect.
5. DC Pulsed TIG has the following characteristics:
a) Pulse Heating - Metal in the molten pool remains on a high temperature for a short period and
solidifies quickly and the possibility of hot-cracks of thermal sensitive material is reduced.
b) The workpiece receives less heat - Arc energy is focused and suitable for thin and super-thin
sheet welding.
c) Heat input and molten pool size is controlled exactly and depth of penetration is even.
d) High-frequency arc allows high-speed welding and leads to higher productivity.
e) High frequency arc can make metal for microlite fabric, eliminate blowhole and improve the
mechanical performance of the joint.
Taurus TIG200ACDC-HF-P machines are suitable for multi-position welding on plates manufactured
from a variety of materials including stainless steel, carbon steel, alloyed steel, titanium, magnesium
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