To increase the depth of fusion, either increase the angle between the tip and the plate surface or decrease the welding speed. The flame will be pointed in the welding direction. The tip should form an angle of approximately 45 degrees with the plate surface. Narrow bead welds are made by raising and lowering the welding flare with a slight circular motion while progressing forward. The welding torch should be adjusted to give the proper type of flame for the particular metal being welded. To make good bead welds on a plate surface, the flare motion, tip angle, and position of the welding flame above the molten puddle should be carefully maintained. Note: The axis of a weld is a line through the length of the weld, perpendicular to the cross-section at its center of gravity. The face of the weld is approximately horizontal.įlat welding is the preferred term however, the same position is sometimes called downhand. This type of welding is performed from the upper side of the joint. 4 is an overhead position – either 4F or 4G.3 is a vertical position – either 3F or 3G.2 refers to a horizontal position – either 2F or 2G.1 refers to a flat position – either 1F or 1G.The American Welding Society has defined the four basic welding positions as shown below.įour basic welding positions defined by the American Welding SocietyĪny conversation around welding starts with a discussion on the welding position of the weld face.Ī number is used to define the position, and an F for Fillet or G for groove refers to the type of weld.Īn architect’s blueprints would indicate the welding symbol. Some welding processes have all-position capabilities, while others may be used in only one or two positions.Īll welding can be classified according to the position of the workpiece or the position of the welded joint on the plates or sections being welded. Techniques have been developed to allow welding in any position. Often that may be on the ceiling, in the corner, or on the floor. Welding is often done on structures in the position in which they are found and in the position the part will be used. Welding cannot always be done in the most desirable position.
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