Welding Drawing Example. 6 Common welding symbols. The arrows of the symbol between the two letters indicate that a weld needs to run the full length between the two marks.
The difference between the W-shape and the S-shape is in the design of the inner surfaces of the flange. Example 2 shows a 12 V-groove weld with a 19 effective size or penetration located on the nearside of the welded joint. The drawing will show two points like an X and a Y for example between sections needing welding.
If the symbols are not clear enough meaning that they cannot provide the information needed there may be a drawing of the cross-section of the weld with its dimensions.
A fillet weld for example is designated by a right triangle. Views A drawing illustrating the. Complementary Indication Dimensioning Welds httpwwwroymechcoukUseful_TablesDrawingWeldhtml 3 of 508062011 082900. A fillet weld for example is designated by a right triangle.