Weld symbols are how the designer of a custom metal form communicates how objects should be welded to welders working the manufacturing line. Without clearly-marked weld symbols, the welder won’t know where to place a weld, what type of weld should be made, and the weld size.
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How do you read welding symbols?
The weld symbol distinguishes between the two sides of a joint by using the arrow and the spaces above and below the reference line. The side of the joint to which the arrow points is known as the arrow side, and its weld is made according to the instructions given below the reference line. A welding symbol has three parts:
- Reference line: this is the main part of the symbol and the primary function is to carry or provide all the information on the weld to be made.
- Arrow: is used to point the reference line to where you need to weld.
- Tail: This is used to provide additional but important data as wells as information needed to complete the weld. For example it may contain information on what welding process is to be used, or something else of equal
What do welding symbols mean?
The main job of symbols is to convey to the welder where to weld, the joint type, how much filler material or metal is to be used, and how much of it needs to be in or on the joint, on a set of plans. Welding symbols are the set of symbols that simplifies communication between the planner and the welders.
What are the elements of a welding symbol?
The assembled “welding symbol” consists of the following eight elements or any of these elements as necessary:
- Reference line
- Arrow
- Basic weld symbols
- Dimensions and other data
- Supplementary symbols
- Finish symbols
- Tail
- Specification
- Process, or other references