Stud welding is a form of spot welding where a bolt or nut is welded onto another metal part. The bolts may be automatically fed into the spot welder. Weld nuts generally have a flange with small nubs that melt to form the weld. Studs have a necked down, un-threaded area for the same purpose. Weld studs are used in stud welding systems.
The tip on the weld end of the stud serves a twofold purpose:
- It acts as a timing device to keep the stud off the base material
- It disintegrates when the trigger is pulled on the gun.
When the tip disintegrates, it melts and helps solidify the weld to the base material.
Stud welding also known as stud arc welding, joins a stud and another piece of metal together. The stud is usually joined to a flat plate by using the stud as one of the electrodes.
Weld studs are used to secure back plates and various components to enclosure without making the reverse side marking. This type of studs are extremely cost-effective and durable.
reference by wikipedia
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