Here is a general overview of the most important settings for TIG welding:
Current: The current setting controls the amount of heat that is generated by the welding arc. Too much current can cause the weld to overheat and melt through, while too little current will result in a weak and brittle weld. The ideal current setting for a particular application can be determined by experimenting with different settings and observing the results.
Voltage: The voltage setting controls the arc length. A high voltage setting will result in a long arc, which can be useful for welding thick materials or reaching awkward areas. However, a long arc can also be unstable and more prone to causing arc blow. A low voltage setting will result in a short arc, which is better for welding thin materials or where precision is required.
Gas: The type and flow rate of the shielding gas used for TIG welding is also critical to the quality of the weld. Helium is often used for welding stainless steel and aluminum, while argon is used for welding carbon steel and other metals. The flow rate of the shielding gas should be sufficient to prevent oxidation of the weld pool.
Electrode: The type of electrode used for TIG welding also has an impact on the weld quality. Tungsten electrodes are commonly used, and the choice of electrode diameter will depend on the welding current and the desired weld size.
Tungsten Shape: The shape of the tungsten electrode can affect the welding arc and the resulting weld bead. Common tungsten shapes include pointed, blunt, and tapered.
Pulse: The pulse setting allows the welder to control the duration and frequency of the welding current. This can be useful for welding thin materials or materials that are prone to warping or cracking.
Balance: The balance setting controls the ratio of cleaning action (arc constriction) to penetration (arc spread) in the welding arc. A higher balance setting will result in more arc constriction and cleaning action, while a lower balance setting will result in more arc spread and penetration.
Travel Speed: The travel speed is the speed at which the welding torch moves along the joint being welded. The correct travel speed will depend on the welding current, the thickness of the material, and the desired weld quality. Too fast a travel speed will result in a weak and brittle weld, while too slow a travel speed can cause the weld to overheat and melt through.
