Stud welding permanently joins welding studs to a workpiece to fasten it without drilling, tapping, punching, or screwing into the workpiece. Also known as drawn-arc stud welding or capacitor-discharge stud welding, the stud welding process joins the fastener to one side of the workpiece while leaving the other side unmarred. Unlike other fastening processes, stud welding only requires access to one side of a workpiece. Stud welders, or stud welding machines, provide current to create an electric arc between a fastener and a workpiece that melts the base of the fastener and an area of the workpiece to fuse them. Stud welding equipment and stud welding accessories are commonly used in the aerospace, automotive, construction, shipbuilding, transportation, and utilities industries.