Parts of a Welding Drawing

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

Welding Construction Lines

Welding Construction Lines: Welding Symbols a. Full Lines (A, fig. 3-1). Full lines represent the visible edges or outlines of an object.  b. Hidden Lines (A, fig. 3-1). Hidden lines are made of short dashes which represent the hidden edges of an object. c. Center Lines (B, fig. 3-1). Centerlines are made with alternating short and long dashes. … Read more

Elements of a Welding Symbol

A distinction is made between the terms “weld symbol” and “welding symbol”. The weld symbol (fig. 3-3) indicates the desired type of weld. The welding symbol (fig. 3-2) is a method of representing the weld symbol on drawings. The assembled “welding symbol” consists of the following eight elements or any of these elements as necessary: … Read more

Welding Construction Lines: Welding Symbols

a. Full Lines (A, fig. 3-1). Full lines represent the visible edges or outlines of an object.  b. Hidden Lines (A, fig. 3-1). Hidden lines are made of short dashes which represent the hidden edges of an object. c. Center Lines (B, fig. 3-1). Centerlines are made with alternating short and long dashes. A line through the center … Read more

Basic Weld Symbols

Weld symbols are used to indicate the welding processes used in metal joining operations, whether the weld is localized or “all-around”, whether it is a shop or field weld, and the contour of welds. These basic weld symbols are summarized below and illustrated in figure 3-3. Arc and Gas Weld Symbols See figure 3-3. Resistance Weld Symbols See figure … Read more