Benefits of Our Tig Welding Procedure
TIG Welding, also known as Gas Tungsten Arc Welding (GTAW), is a process which joins metals by heating them with an arc involving a tungsten electrode (non-consumable) and the work part. The practice is used as a shielding gas and may also be used with or without the addition of filler metal. The main variables in TIG Welding are arc voltage (arc length), welding current, travel speed and protecting gas composition. The quantity of energy transferred per unit length of the weld is inversely proportional to the travel rate. Shielding gases are usually inert to guard the electrode against contamination.
The use of helium protecting provides more penetration than argon. The arc, established between the tip of the electrode and the work, creates heat to melt the base metal. Once the arc and weld pool is created, the flashlight is moved across the joint, and the arc melts the surfaces to be joined. If used, filler wire is generally added to the leading edge of the weld pool to fill the joint. The tungsten electrode can be alloyed with small amounts of active components to boost emissivity of the electrode; this provides faster arc starting, greater arc stability, and longer electrode life.
Benefits of Tig Welding
- Can be used to join almost all metals, with superior weld quality, normally free of flaws
- Free from spattering that occurs with other arc welding procedures
- Can be used with or without filler metal as required for the specific application
- Provides excellent control of root drill weld penetration
- Can be used to produce inexpensive autogenous (fusion) welds with good comprehension
- Provides for separate control over the heat input and filler alloy additions
- A high degree of operator skill Must produce quality welds
- The process is not easily automated