Welding Studs
Welding studs, commonly known as welding screws or fastener studs, are specialized threaded fasteners welded onto a metal substrate to provide a strong, permanent threaded point. The two primary welding processes are Capacitor Discharge (CD) Welding (very fast) and Arc Stud Welding (for larger diameters).
- Material: Carbon steel, Stainless steel, Aluminum
- Surface treatment: Zinc-plating, Copper-plating
- Dimensions: Custom manufactured to specific requirements
Outstanding Charateristics of Welding Studs
1. Exceptional Strength and Reliability
- Metallurgical Bond: The welding process fuses the stud to the base material, creating a bond that is often stronger than the stud itself. In destructive testing, the stud typically shears off before the weld fails.
- High Vibration Resistance: The permanent fusion lock makes them highly resistant to loosening under vibration and shock, offering superior reliability compared to threaded fasteners.
2. High Efficiency and Automation
- Extremely Fast Process: CD welding, in particular, completes a weld in milliseconds, making it ideal for high-volume production lines.
- Eliminates Secondary Operations: No need for drilling, tapping, or punching holes in the base material. This drastically reduces assembly time and cost.
3. Excellent Seal
- The weld creates a permanent, hermetic, and leak-proof seal around the base of the stud. This is vital for applications containing liquids or gases, such as tanks, containers, and HVAC systems.
Materials of Welding Studs
Applications of Welding Studs
- Automotive Industry: One of the largest applications. Used to attach brackets, wiring harnesses, trim panels, insulation, and fluid lines to vehicle bodies, chassis, and frames.
- Appliance Manufacturing: Found in refrigerators, washing machines, ovens, and air conditioners to mount control panels, circuit boards, compressors, decorative panels, and internal components to sheet metal housings.
- Sheet Metal Fabrication & Enclosures: Electrical control panels, server racks, switchgear, and industrial cabinets. Used to attach mounting rails, components, hinges, and access panels.