When the weld is made from under the joint.
flat, horizontal, vertical and over head position
Look at a wall. Imagine welding on that wall from left to right or right to left. That is horizontal welding.
The biggest application of explosion welding is the cladding of flat plate.
The letters EN , on a welding electrode , indicate "electrode negative" , that is the electrode is to be used with a DC current , in the negative position, or polarity.
A 1F weld, or flat position weld, refers to a welding position where the welding is performed on the upper surface of the workpiece, with the workpiece in a horizontal position. This is typically the easiest and most straightforward position for welders, allowing for better visibility and control. The "1" indicates the position classification, while "F" stands for flat. This type of weld is commonly used in various applications, including structural and fabrication work.
flat, horizontal, vertical and over head position
The 2G welding position refers to a horizontal groove weld position where the welding is performed on a horizontal surface, with the weld bead being positioned in the horizontal plane. In this position, the workpieces are typically oriented in a flat position, allowing for easier access and control during the welding process. This position is commonly used for welding pipelines and structural elements. It is one of the positions defined by the American Welding Society (AWS) in their classification system for welding positions.
Depends on applicants expertise. If you are a welder, tell them what welding processes you knew, then what welding joint design you can weld and the welding position you can perform.
The meaning of 6G position in Welding is mean that the pipe or test piece inclined to 45 degree and not rotated during welding process .
Actually I usually crowd the puddle when welding vertical up. The longer the arc length the more the arc can wander.
4G is a welding position. The '4' means the weld is to be made in the overhead position. The 'G' means the weld is a groove weld.
A welding positioner is a work motion device that places the weldment in a location and at an angle that allows for optimum welding parameters to be used (faster travel speed, increased current, ect.) Essentially, it places the weldment so that it is in a 1G, 1F, or 2F position. Four common types of welding positioners include tilt-tables, turning rolls, head and tailstock, and universal balance positioners.
Your question is incomplete. Which process? Which electrode? What is the basemetal, which position? etc etc
5G is a welding position for pipe. The pipe is in a fixed, horizontal position. There is a groove along the circumference of the pipe where the weld is to be made.
Look at a wall. Imagine welding on that wall from left to right or right to left. That is horizontal welding.
A welding position is the orientation of the weld joint, whether that be flat, horizontal, vertical, or overhead.
The biggest application of explosion welding is the cladding of flat plate.