| Like in all domains that require precision of | | | | There are all sorts of peculiarities connected to |
| execution, welding makes use of conventional | | | | the use of welding symbols. For instance, if any |
| standard signs that help to the better execution | | | | signs are included in the lower part of the |
| of a weld according to blueprints. The welding | | | | reference line, you'll have to make the weld on |
| symbols systematized by the American Welding | | | | the side of the joint indicated by the tip of the |
| Society indicate the exact place where welds | | | | arrow. In case the welding symbols are present |
| need to be made, the kind of joint necessary for | | | | on the upper side of the reference line, then the |
| it and the amount of filler to be used in the joint. | | | | weld needs to be made on the side opposite to |
| Learning how to work with welding symbols is | | | | the direction pointed by the tip of the arrow. Both |
| part of the training programs welders have to | | | | sides of the joint must be welded when you have |
| attend before receiving any certifications. What | | | | signs included on both sides of the reference line. |
| do welding symbols actually consist of? The main | | | | Deciphering such instructions from blueprints is |
| basic elements are the arrow, the reference line | | | | essential for the proper working of the welding |
| and the tail. | | | | process. |
| All welding symbols are built starting from the | | | | Two kinds of welding symbols may appear on the |
| reference line, this is the very foundation of the | | | | reference line and they are essential when it |
| sign as such on which you add other data | | | | comes to understanding how to make a specific |
| necessary for the process. The connection | | | | weld. The most important sign here is a circle that |
| between the reference line and the joint area is | | | | means "welding all around", thus, you will have to |
| made by the arrow, but the direction of the | | | | make the weld all around the joint in the direction |
| arrow has no influence on the meaning of the | | | | indicated by the tip of the arrow. Sometimes it is |
| reference line. Last but not least, the tail is not a | | | | not possible to weld around one single surface, |
| compulsive element of all welding symbols, some | | | | and in such cases, the presence of the circle |
| have it, others don't. It is generally used in case | | | | would be incorrect. Under such circumstances |
| you want to add some information or | | | | there should be other specificities related to the |
| supplementary specification to the process. | | | | process. |