Uphill Welding
Uphill welding becomes essential when two thick metal pieces are positioned vertically side by side, or when a thick metal part has a vertical fracture. In such cases, welding must be performed in an upward (uphill) direction. This method is commonly used in welding I-beams or channels with a thickness greater than 3 or 4 millimeters. Vertical welding, when done using the uphill method, results in a thicker weld. However, for metals thinner than one millimeter, this method is not recommended at all, as the increased weld thickness may cause burn-through.
Downhill Welding
When working with thin metal sheets, welding should be done using the downhill method. This welding technique is also applicable in cases where metals have vertical fractures or need to be vertically joined.
Flat Welding
Welding projects performed on the ground or on horizontal surfaces are referred to as flat (or floor) welding.
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