Three main kinds of stud welding operations are utilized in a range of industries. Capacitor discharge (CD) welding is useful for rapid, clean operations with thinner diameter studs and pins. Common applications of CD stud welding include insulation installment, electrical enclosures, and food service equipment. Another operation, drawn arc stud welding, can be used for larger diameter fasteners. Drawn arc studs are used in heavy-duty construction projects like bridges, roadways, and multistory buildings. Short cycle welding is the third type of stud welding operation used across industries. Essentially a drawn arc process, short cycle welding can be automated more easily, performed faster, and done on uneven or coated surfaces. No matter what kind of welding operations you use, you can find all the stud welding products you need at Northland Fastening Systems (NFS). We supply a comprehensive range of welding tools for rent or purchase, drawn arc and CD welding studs, welding accessories, repairs for most models, and the expert advice of our own technicians.
In most cases, drawn arc stud welding will utilize a ceramic ferrule placed at the point of the weld. Ferrules help control the weld by containing molten metal and providing some temperature regulations. However, because drawn arc welding can be done on many kinds of surfaces—including at various angles, for different profiles, and with a broad range of dimensions—there is an equally diverse selection of ferrules you can choose from. Picking the right ferrule depends on the conditions of your weld.
Stud Welding Products
There are 10 standard ceramic ferrule stud welding products you can choose from, including:
- Flat and flat heavy-duty: These ferrules are used with down-hand operations and can be paired with headed studs, deformed bars, fully threaded studs, and in vertical applications with studs under ⅜” diameter.
- Collar: These are used with collar studs, studs with short applications, or low-profile studs.
- Reduced base: Studs with reduced bases, such as ones with unthreaded sections at the tip, work best with reduced base ferrules.
- Pitch: These are used with partially threaded studs to accommodate the pitch in diameter from the wider threaded portion to the slimmer unthreaded portion.
- Thru-deck: Thru-deck welding is a common construction operation, and it requires thru-deck ferrules. These are most useful in composite construction with steel and concrete.
- Thru-deck wired: Similar to thru-deck ferrules, these are used with ¾” stud diameters that can be installed in rapid operations.
- Angle: When studs need to be installed at an angle, these ferrules can be utilized with inside or outside angle positioning.
- Vertical: Studs can be installed on vertical surfaces, but the operation needs to use a vertical ferrule to contain the molten metal and prevent drips.
- Flat heavy-duty special: Special ferrules have finer teeth at their base, which helps with ½” vertical applications and the installation of deformed bar anchors.