Specialists in studs welding, standard and custom fasteners.
Cold Headed Fasteners
Drawn ARC Weld Studs
Drawn Arc Weld Studs have a variety of applications ranging from Buildings and Bridges to Automotive and Shipbuilding. The technology is very quick, cost effective and secure.
CD Weld
Studs
Capacitor discharge stud welding (CD) involves the same basic principles and metallurgical aspects as any other arc welding procedure.
Stud Welder Accessories
We offer a complete range of Stud Welding Accessories for both Capacitor Discharge and Drawn Arc Systems. Compatible with all brands.
Fasteners
Projection weld screws and weld pins. Fasteners are our specialty. We stock and manufacture a large range in a variety of sizes.
Projection Weld Studs
Weld Screws are designed to be permanently welded to like materials. Weld Screws are available in low carbon, stainless steel, heat-treated and plated.
Our products are made in the USA of the highest quality materials.
Cold Headed Fasteners
CHF stocks standard products for same day shipping. We can manufacture to your specifications. Send us your print and we would be happy to quote to your specifications.
What Is Stud Welding?
Stud Welding is a high-speed, efficient metal fastening process in which a metal fastener can be applied to another piece of metal using several processes.
Two methods Available - Capacitor Discharge ("CD" for short) and Drawn Arc Stud Welding.
Drawn Arc: The welding stud is placed in a Stud Gun and then placed in contact with the base metal. A weld arc is drawn which melts the welding stud base and an area of the metal work piece for metal fastening. The welding stud is then forced into the melted area and held in place until the metals re-solidify. This high -quality fusion arc weld is complete in milliseconds and is accomplished by one of two major methods. Drawn Arc is generally used in more structural, heavier duty applications.
Capacitor Discharge: In this process, an arc is generated by the rapid discharge of electricity from a capacitor generates the melting heat. Pressure applied during or immediately after the discharge completes the joint. Just as in arc welding, the heat is created by current passing in an arc from the stud to the base material.
One advantage of the capacitor-based welding is that it can weld studs to thin materials without thermally distorting or discoloring them and without burn-through. The weld is not that deep into the base material, so dissimilar metals can be welded without metallurgical problems. Plates can be as thin as 0.016 in for steel and 0.04 in. for aluminum.
