Stud Welding is the process of fastening a weld stud (or “stud”) to a base metal material. The key factor that differentiates stud welding from other forms of welding is that it’s a one-step semi-automated process. The application is virtually instantaneous and leaves in most cases no reverse-side markings. Using a “stud gun” to apply the fastener to the base metal makes this process simple and efficient.
Types – Arc Welding and CD Welding
Two primary forms of stud welding are “Arc” and “Capacitive Discharge (CD)”. Each process differs in the application and materials they are most suitable for.
Arc Stud Welding
Arc welding is used for larger diameter studs and thicker base metals. Arc stud welding is distinct in that it uses a ceramic ferrule during the welding process.
The ferrule contains the weld and shields the operator from the arc during the fusion process. The arc stud welding process provides a full fusion weld in less than a second.
- First, load the weld stud into the gun and place it on the parent metal.
- Then, pull the trigger and the gun shaft pulls up and discharges energy through the stud. This creates a weld arc melting both the tip of the fastener and the parent metal.
- The ceramic ferrule retains the heat and the molten material in the weld site.
- Once both the stud and the parent metal are molten, the stud is plunged into the base metal.
- Finally, cooling and solidification occur, resulting in a strong fusion bond between the fastener and parent metal!
Materials commonly used for Arc Stud Welding include Mild Steel, Stainless Steel and Aluminum.
Arc Welding is best suited for structural and load-bearing applications.
What industries use Arc Welding?
- Construction
- Heavy Equipment
- Bridgework
- Shipbuilding
CD Stud Welding
CD welding is used for smaller diameter fasteners and thin base metals. Most CD studs and fasteners have a special tip, which aids in the alignment and power-discharge process. The size of the stud and the thickness of the base metal affects the visibility of reverse-side marking once the weld is complete.
- First, load the weld stud into the gun and place it on the parent metal.
- Then, Trigger the stud gun and energy is released from the stud gun into the fastener.
- The tip of the stud and a small portion of the base metal melts.
- The stud is then forced into the molten material through spring-loaded action.
- Finally, a full fusion weld between the parent metal and stud itself is the result!
Materials commonly used for CD welding include Mild Steel, Stainless Steel and Aluminum.
Additionally, the CD Stud’s weld base may be flanged or non-flanged.
CD Welding is best suited for thin sheet metal and precision applications.
What industries use CD Welding?
- Signage
- Automotive
- Electrical Panels
What Equipment is Needed?
A complete Stud Welding system will include:
- Stud Welder
- Stud Welding Gun
- Cables (Gun control cable and ground cable)
Always ensure you have sufficient power available for your stud welder. Stud welders are quick and efficient but do draw a lot of power during their short process of stud welding.
What are the Benefits?
Stud welding is versatile; it allows the operator to weld different kinds of metals together quickly and efficiently. Welds occur in milliseconds. Stud Welding allows you to weld onto very thin plates.
The Stud Welding System allows operators to finely tune their desired energy output, keeping every weld consistent. Stud Welding requires very little training to operate a stud welder.
Overall, it’s a simple process and the result is a virtually instantaneous full fusion weld. Arc and CD welding occur in a single step, place the stud in the stud gun, locate your weld site and activate the gun.
No more drilling or tapping which saves money and time!
Stud Welding – simple, fast, efficient!
Ready to get started?
Now’s the perfect time to get your hands on a stud welder, and we’re here to help you find the perfect one for all your stud welding needs. Check out our full line of Arc Stud Welding equipment here, as well as our full line of CD Stud Welding equipment here.
Not sure what stud welder will work best for your application? Give us a call at 800-252-1919 and one of our team members will be glad to help you!
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