What are blueprints in welding?
Welding blueprint symbols are used as a means of communication between a designer, such as a shop foreman, welding engineer or supervisor, and welder. Essentially, they are a set of symbols used as a shorthand code for describing the type of weld, its size and other processing and finishing information.
How do you specify welds on drawings?
Any symbol that is used to show a joint or weld type feature on the other side of the arrow line is always placed on a dotted line. BS 499 and AWS require symbols to be placed above the reference line (which indicate the other side) or below the reference line (indicating the arrow side of the joint).
How do you read a weld?
The weld symbol distinguishes between the two sides of a joint by using the arrow and the spaces above and below the reference line. The side of the joint to which the arrow points is known (rather prosaically) as the arrow side, and its weld is made according to the instructions given below the reference line.
How do you read a fabrication blueprint?
The first number represents the actual size of the part and the second number represents the print. In other words, 1:2 means the the print is double the actual size. Whereas 3:1 indicates the actual size is three times what is shown on the print.
How do you read welding engineering drawings?
For slot welds, the width of each slot is given to the left of the symbol, the length and pitch (separated by a dash) are given to the right of the symbol, and a detail drawing is referenced in the tail. The number of plugs or slots is given in parentheses above or below the weld symbol.
What size of MIG wire is the most versatile?
If you’re doing a variety of welding, buying a middle-of-the-range size like 0.030-inch or 0.035-inch will give you a good variety to cover most of your projects. The thicker a section you weld, or the more material you want to put into the joint, the bigger diameter a wire you should use.