Search anything about welding with images in this website.
Welding Technical Drawing Symbols. The drawing will show two points like an X and a Y for example between sections needing welding. If the welds are symmetrical on both sides of the plate the dashed line is omitted.
The symbol is interpreted as a simplified cross-section of the weld. This symbol has a flag showing the weld needs to be done on site not in the workshop. This standard should be referenced for all engineering documentation to ensure quality and consistency in manufacturing of welded structures.
The weld symbol Figure 7-16 is only part of the information required in the welding symbol.
You can research the full range of welding symbols in the Engineering Drawing Handbook produced by Standards Australia and the Institution of Engineers. This technical drawing shows the machine parts assembly using joining by threaded fasteners. The weld symbol always includes. The arrows of the symbol between the two letters indicate that a weld needs to run the full length between the two marks.