In the field of welding, clear communication is crucial to ensure accurate and consistent weldments. Welding symbols provide a standardized language for conveying welding instructions and specifications.
In Australia, welding symbols are as per AS 1101.3 standard. As welders commonly refer to the welding symbols chart to interpret and apply the correct welding techniques, a handy welding symbol chart is very useful for everyone.
Understanding the Welding Symbols Chart
The welding symbols chart is a visual representation of various welding symbols and their meanings. It serves as a universal reference guide for welders, engineers, and inspectors to communicate welding requirements accurately.
In Australia, the welding symbols chart follows the guidelines specified in the Australian Standard AS 1100.101:2017, Technical drawing – Engineering drawing.
Australian Standard AS 1101.3
AS 1101.3—2005 is an Australian Standard that focuses on graphical symbols for general engineering, specifically related to welding and non-destructive examination.
This Standard provides a system of symbols that can be used to convey complete welding information on engineering drawings.
It includes details of the symbols and their application requirements for different welding processes, including brazing, as well as non-destructive examination.
The purpose of this Standard is to ensure clear communication and understanding of welding information in engineering design and documentation.
AS 1101.3 Welding Symbols
- Fillet Weld Symbol: Represents a fillet weld, which is a triangular weld joint between two surfaces.
- Groove Weld Symbol: Indicates a groove weld, which is a weld joint between two grooved surfaces.
- Plug Weld Symbol: Represents a plug weld, which is a circular weld joint.
- Spot Weld Symbol: Indicates a spot weld, which is a series of circular weld joints made at regular intervals.
- Seam Weld Symbol: Represents a seam weld, which is a continuous weld joint along the length of two surfaces.
- Backing Weld Symbol: Indicates a backing weld, which is a weld made on the backside of a joint to provide reinforcement.
- Surfacing Weld Symbol: Represents a surfacing weld, which is a weld used to build up a surface or provide additional material.
- Projection Weld Symbol: Indicates a projection weld, which is a weld made on a protrusion or projection of a workpiece.