Fillet Weld Symbols On Drawings
The weld length will be provided on the right side of the fillet weld symbol.
Fillet weld symbols on drawings. These symbols are added to the base symbols to clarify the type of weld required. This shows a 6 fillet weld to be applied to the arrow side. The size of the fillet weld with unequal legs must be shown in parentheses to the left of the weld symbol.
This symbol signifies that the weld needs to be machined or ground back flush to the level of the rest of the plate. The weld symbol may also be placed above the reference line rather than below it. Metal is deposited in a corner formed by the fitup of the two members to form the joint.
Fillet welds the fillet weld is used to make joints lap joints butt joints corner joints edge joints and t joints. This must be shown in the weld symbol to communicate the information between individuals. Fig 7 a d and f or as a dressed off weld as shown in b and c.
The three weld symbols you see in the drawings above represent a square fillet and v groove weld respectively. This placement is important. The size of a fillet weld must of a fillet weld be shown to the left of the weld symbol a fig.
A fillet weld is defined in the american welding society aws aws a3 0 standard welding terms and definitions as a weld of approximately triangular cross section joining two surfaces approximately at right angles to each other in a lap joint t joint or corner joint figure 1. A weld may be applied only to a specific length of a joint. Subcontractors are often required to interpret weld symbols on engineering drawings.
Symbols for size of fillet welds. This is called the weld symbol not to be confused with the overall welding symbol. Weld orientation is not shown by the symbol and must be shown on the drawing when necessary e fig.
