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.
The edge welding joint is used to join parts that are parallel to each other, or nearly parallel, as can be seen in the figure 1 below. The strength of this joint is not as much as other types of welding joints, such as butt joint. This joint is commonly used to join edges of … Read more
In welding, butt joints are used to join the edges of two plates or surfaces located in approximately the same plane. Butt joint is the most commonly used in the industry among all joint types. The following figure shows plain square butt joints of various thicknesses. As can be seen, there is no beveling of the two parts in … Read more
There are mainly five types of joints in welding: edge joint, corner joint, butt joint, tee joint, and lap joint. This article discusses the ways in which a lap joint can be made. See the figure below. As the name suggests, lap joint refers to a joint when two parts ‘lap’ with each other, as … Read more
This article explains about various lines on a drawing. Understanding the true meaning of these lines is necessary so that the intent of the drawing maker is passed on to the welder or task performer precisely. There are generally five or six types of lines that we come across on a drawing. Full Lines These … Read more
It is important to distinguish between the types of joints and the types of welds in welding. Both are not same. We shall see the difference in this article. Both the weld as well as the joint must be stated to completely describe the weld joint. There are many different types of welds, which are … 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 article focusses on fillet welds: what is fillet weld, what electrode size should be used, how many passes should be used etc. Some of the terminology associated with fillet welds has been indicated in the above figure. Some information about fillet welds pertaining to ASME Section IX has been included at the latter stages … Read more
It is important to know different types of joints in welding, 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 … 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
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