BLUEPRINT READING FOR WELDERS

DESIGNATION OF SPECIAL INFORMATION

Certain operations require a specific welding process, a particular type of electrode, or other information nec­essary to complete the weld. In this case, a note can be placed in the tail of the reference line (using standard welding abbreviations), Figure 10.25. CJ^- NOTE NO. 2 NOTE NO. 2 Note that the term “back gouge” indicates […]

CONTOUR AND FINISH SYMBOLS

i=i і—і / (a) FLUSH OR FLAT COM TOUR Supplementary contour symbols are used with the weld symbols to indicate how the face of the weld is to be finished, Figure 10.18. In addition, finish symbols may be used with contour symbols to indicate the method to be used for forming the contour of the […]

ADDITIONAL WELDING SYMBOL ELEMENTS

A knowledge of the other elements added to the welding symbol and their placement is required before weld­ing symbols on prints can be interpreted properly. Each element applied to the basic welding symbol has a standard location with reference to the components of the welding symbol and to the other elements that are added to […]

Welding Symbols and Abbreviations

WELDING SYMBOL FIGURE 10.1 ■ Standard welding symbol. A standard welding symbol and weld symbols have been developed by the American Welding Society (AWS). These symbols developed by the AWS are covered in detail in the units that follow. The standard welding symbol, Figure 10.1, consists of a reference line, an arrow, and a tail. […]

SUBASSEMBLY PRINTS

When an object consists of a number of separate assembled units that comprise the complete assembly, the individual units are often drawn as subassemblies. The main or top assembly is first prepared and the subas­semblies are identified on the print by a letter or a number and a name for referencing purposes. A drawing for […]

Detail, Assembly, and Subassembly Prints

DETAIL DRAWING Components of weldments are shown in detail by prints that are called detail or working prints. A detail print contains all the information needed to make a part, including the views required for a complete description and the dimensions that are needed for its construction, and may include the directions (indicated by notes […]

BROKEN-OUT SECTIONS

A broken-out section, like other sections, is used to show the interior of a part. The extent of the section is shown by a short break line, Figure 8.10. OTHER SECTIONS Other types of sections include offset sections and removed sections. Note that each section receives its name from the method in which it is […]

PHANTOM SECTIONS

A phantom section is a view primarily used to show a mating part. The phantom section may or may not be shown in detail on the drawing. Its primary purpose is to show how the parts fit or operate together, Figure 8.8. A phantom section may also be used to illustrate the function of the […]

REVOLVED SECTIONS

The cross section (true shape) of a struc­tural metal shape is often shown on a view by a revolved section. As the name implies, a revolved section of a shape is a cross section that has been turned (revolved) 90°. FIGURE 8.5 ■ Revolved sections applied for regular but When the metal is of such […]

Sections FULL SECTIONS

A full section (or cross section) is a view of an object which is imagined to be cut entirely in half, with half of the object then removed so that the cut surface can be viewed for its details. However, the imagined removed part is not left out of the other views. The cut surface […]