The main role of miniature helical spring welding studs is in stud welding. As a key structural component in the welding process, their core function is to provide stable axial pressure at the moment of welding, ensuring a strong metallurgical bond between the stud and the workpiece.
1. Applying pressure to fuse the molten end of the stud with the workpiece's weld pool: During stud welding (including capacitive discharge (CD) and arc welding (DA), the spring system inside the welding torch pushes the stud, pressing it into the high-temperature weld pool with constant pressure, promoting metal recrystallization and forming a high-strength connection.
2. Ensuring stable welding quality: Miniature helical springs can precisely control the pressure and application time, reducing welding defects (such as incomplete welds, eccentricity), making them particularly suitable for automated or high-precision welding scenarios.
3. Adapting to different materials and thicknesses: By adjusting the spring preload, studs of different diameters and substrates (such as steel, aluminum, stainless steel, etc.) can be adapted, improving process versatility.
