Published: Monday, 10 June 2013
Written by Super User
The art of welding is an ancient one. The prehistoric record of mankind reveals forged and welded jewelry such as bracelets and rings.
As man and technology evolved so did the need for welded items. From every day tools to military weapons, the joining of metals has become an important industrial process. The aircraft, automotive, shipbuilding and constructions industries have developed welding as a major fabricating method for steel, aluminum and magnesium. Welding operations have increased the strength and durability of products along with improving their overall appearance.
Welding symbols on drawings are one of the most misunderstood concepts in the welding profession. When properly applied to drawings and, as importantly, when correctly interpreted, offer a potentially convenient way of controlling the welding of a particular joint.
Welding symbols are used on blueprints and drawings to show where the weld is to be placed and may also show the size, type of weld, number of welds, details about the weld and even details about the joint. A lot of welders can get by for their entire careers without having a solid understanding of welding symbols. The fact is, depending on what kind of job they have, they may have to know a small handful of weld symbols.
Two of most important weld symbols to know are the fillet weld symbol and the groove weld symbols. Knowing how to read a welding symbol chart is important and better than trying to memorize them all. Especially if you don’t use welding symbols very often. Welding symbols provide the means of placing complete welding information on drawings.