AWS - Chapter 9 - Arc Stud Welding
| Organization: | AWS |
| Publication Date: | 1 January 2004 |
| Page Count: | 40 |
scope:
Stud welding is a general term for joining a metal stud or similar component to a workpiece. The stud welding process is used without a filler metal, and with or without external gas or flux shielding. Partial shielding in the form of a ceramic ferrule or a ferrule of another material surrounding the stud is sometimes used. Pressure is applied after the workpieces are sufficiently heated.1, 2 Arc stud welding (SW) is the specific process discussed in this chapter. Arc stud welding and a variation of the process, capacitor discharge stud welding, are reliable, widely used joining processes important to manufacturers in the automotive, railroad, shipbuilding, heavy equipment, construction, and military defense industries. Studs can be welded to a vast range of materials in applications requiring the joining, fastening, mounting, securing, or anchoring of equipment, structures, or components. Stud welding can be accomplished with a number of welding processes, including arc, resistance, friction, and percussion. These processes are used with conventionally designed equipment with special tooling for stud welding.3 However, the equipment and techniques most suited to arc stud welding are derived from the arc welding processes. The fundamentals of arc stud welding and capacitor discharge stud welding, including its three modes of operation, are described in this chapter. Information on stud welding equipment, applications, materials, techniques, and quality control is presented, along with guidance on process selection, economics, and safe practices. The updated Supplementary Reading List at the end of the chapter is a guide to more detailed technical information. It should be noted that, consistent with stud welding industry standards, measurements of stud diameters and thread sizes are stated as fractions, while measurements of metal thicknesses are stated as decimals in this chapter.
abstract:
Arc Stud Welding
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