Figure 3-52.-Finish and contour symbols.
Figure 3-53.-Specifying additional welding information.
Another supplementary symbol shown in figure 3-51 is the weld-all-around symbol. When this symbol is placed on a welding symbol, welds are to continue all around the joint.
Welds that cannot be made in the shop are identified as field welds. Afield weld symbol is shown in figure 3-51. This symbol is a black flag that points toward the tail of the welding symbol.
It is sometimes necessary to specify a certain welding process, a type of electrode, or some type of reference necessary to complete a weld. In this case, a note can be placed in the tail of the reference line. (See
Figure 3-54.-Representing multiple welds.
Figure 3-55.-Example of welding symbol in use.
fig. 3-53.) If additional information is not needed, then the tail is omitted.
When you are fabricating a metal part, there are times when more than one type of weld is needed on the same joint; for example, a joint may require both a bevel groove weld and a fillet weld. Two methods of illustrating these weld symbols are shown in figure 3-54. Note that in each welding symbol, the bevel groove weld is to be completed first, followed by the fillet weld.
Figure 3-55 shows an example of how a welding symbol may appear on a drawing. This figure shows aContinue Reading