Tungsten alloy welding rod introduction
Tungsten alloy welding rod used in Gas Tungsten Arc Welding (GTAW) is made of tungsten alloy, because tungsten alloy has the highest melting temperature among metals, at 3,422 °C (6,192 °F). As a result, the tungsten alloy welding rod is not consumed during welding, though some erosion (called burn-off) can occur. Tungsten alloy welding rods can have either a clean finish or a ground finish—clean finish tungsten alloy welding rods have been chemically cleaned, while ground tungsten alloy welding rods have been ground to a uniform size and have a polished surface, making them optimal for heat conduction. The diameter of the tungsten alloy welding rod can vary between 0.5 and 6.4 millimeters (0.02 and 0.25 in), and their length can range from 75 to 610 millimeters (3.0 to 24 in).
Selecting tungsten alloy welding rod for welding benefits
Selecting the proper tungsten alloy welding rods will greatly improve weld quality and productivity while lowering costs for your Gas Tungsten Arc Welding (GTAW) and Plasma Arc welding operations.
Selecting high-quality tungsten alloy welding rod, it is easy to improve arc time and better weld quality with minimized contamination. Make sure that your tungsten alloy welding rods meet standards.
Some pictures about the tungsten alloy welding rod
Gas tungsten arc welding introduction
Gas tungsten arc welding (GTAW), also known as tungsten inert gas welding, is an arc welding process that uses a non-consumable tungsten alloy welding rod to produce the weld. The weld area is protected from atmospheric contamination by a shielding gas (usually an inert gas such as argon), and a filler metal is normally used, though some welds, known as autogenously welds, do not require it. A constant-current welding power supply produces energy which is conducted across the arc through a column of highly ionized gas and metal vapors known as plasma.
Operation for gas tungsten arc welding
Manual gas tungsten arc welding is often considered the most difficult of all the welding processes commonly used in industry. Because the welder must maintain a short arc length, great care and skill are required to prevent contact between the tungsten alloy welding rod and the work piece. Similar to torch welding, gas tungsten arc welding normally requires two hands, since most applications require that the welder manually feed a filler metal into the weld area with one hand while manipulating the welding torch in the other. However, some welds combining thin materials (known as autogenously or fusion welds) can be accomplished without filler metal; most notably edge, corner, and butt joints.
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| Gas tungsten arc welding for weld area |
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