These articles address information on welding symbols, welding construction lines used in welding drawings, welding abbreviations, parts of a welding drawing, types of welds, types of joints, etc.
In welding, knowing different types of joints is important, so that one can choose the right kind of joint for an application. In this article, we shall see in detail about ‘T’ joint welding, the kinds of edge preparation in welding of such joints, and some of the difficulties associated in welding of tee joints. … Read more
The corner joint welding is used to join two members located at approximately right angles to each other in the form of an L. It is an easy to assemble joint, the edge-preparation for this joint is quite uncomplicated, and it can be used to produce joints in thin as well as thick sections. It … Read more
A fillet weld is a triangular weld used to join two surfaces that are at approximately right angles to each other. i.e., lap, tee, and corner joints are normally welded with a fillet weld. A fillet weld should have a leg length equal to the plate thickness up to 3/8-inch plate. For plate thicknesses 3/8-inch and greater, … Read more
Welding cannot take its proper place as an engineering tool unless means are provided for conveying the information from the designer to the workmen. Welding symbols provide the means of placing complete welding information on drawings. The scheme for the symbolic representation of welds on engineering drawings used in this manual is consistent with the … Read more
Welding is a material joining process used in making welds. A weld is a localized coalescence of metals or nonmetals produced either by heating the materials to a suitable temperate with or without the application of pressure or by the application of pressure alone, with or without the use of filler metal. Coalescence is a growing together or a growing … Read more
Welds are made at the junction of the various pieces that make up the weldment. The junctions of parts, or joints, are defined as the location where two or more members are to be joined. Parts being joined to produce the weldment may be in the form of rolled plates, sheets, shapes, pipes, castings, forgings, … Read more
This type of joint is used to join two overlapping members. A single lap joint where welding must be done from one side is shown in view A, figure 6-21. The double lap joint is welded on both sides and develops the full strength of the welded members (view B, fig. 6-21). An offset lap joint … Read more
a. Drawings. Drawing or sketching is a universal language used to convey all necessary information to the individual who will fabricate or assemble an object. Prints are also used to illustrate how various equipment is operated, maintained, repaired, or lubricated. The original drawings for prints are made either by directly drawing or tracing a drawing on … Read more
Some commonly used welding process abbreviations are as follows: Abbreviation Process Name AHW Atomic Hydrogen Welding B Brazing (Capillary Action) BMAW Bare Metal Arc Welding BW Braze Welding (Groove or Fillet) CAC-A Carbon Arc Cutting (Also Gouging) CAW Carbon Arc Welding CAW-G Gas Carbon Arc Welding CAW-S Shielded Carbon Arc Welding CAW-T Twin Carbon Arc … Read more
Parts of a welding drawing include the following: Title Block. The title block contains the drawing number and all the information required to identify the part or assembly represented. Approved military prints will include the name and address of the Government Agency or organization preparing the drawing, the scale, the drafting record, authentication, and the … Read more