Welding Drawing Interpretation. Welding is a fabrication or sculptural process that joins materials usually metals or thermoplastics by causing coalescence. Welding joint type location dimensions and side are indicated on the drawing.
When welds are specified on engineering and fabrication drawings a combinations of lines and other geometry are used known as welding symbols for describing the type of type of weld its size and other processing and finishing information. The weld symbol always includes 1. If the welds are symmetrical on both sides of the plate the dashed line is omitted.
Welding-information should complement drawing requirements.
Here you will learn to use the most common symbols and their meaning and their application. The drawing will show two points like an X and a Y for example between sections needing welding. The weld symbol always includes 1. The symbols in this book are a representation of what weld and welding symbols look like.