In this section, we bring together in-depth expertise on stud welding and practical comparisons—such as stud welding versus screws or rivets, the selection of diameter and current, and common errors and how to avoid them.
Industrial Fastening Processes and Comparisons for Practical Applications
In-depth technical expertise is the most important prerequisite for cost-effective joints in modern sheet metal fabrication. As an experienced partner, bsk + BTV GmbH supports you in selecting the optimal process and monitoring operations. To control automated processes in compliance with standards, all welded joints must meet strict criteria. You can find detailed information on all regulatory requirements on our information page regarding DIN standards for stud welding. Quality that complies with the standards set forth in DVS Media’s DVS Technical Note 0901 ensures reproducible results in your daily operations without thermal distortion.
Expertise in Stud Welding: A Direct Comparison
Stud welding, screws, or rivets—which is better?
When there are many similar fastening points, welding is faster and more cost-effective than using screws, since it eliminates the need for drilling and thread cutting. Unlike form-fit rivets, welding creates a material-to-material bond within the material itself.
What is the difference between the CD and ARC methods?
The CD process (tip ignition), with its extremely short discharge times (1–3 ms), is suitable for thin sheets where the reverse side must remain mark-free. The ARC process (stroke ignition) uses a pilot arc and longer discharge times for thick components and large diameters.
How do you correctly select the diameter, sheet thickness, and current?
As a rule of thumb for the CD process, the sheet metal thickness should be at least one-tenth of the stud diameter. In flash-bulb welding (e.g., M10 with a 1000-A class machine such as the DAI-1300), the welding current and welding time depend heavily on the stud type according to DIN EN ISO 13918. Clean surfaces and appropriate molten pool protection—using shielding gas or a ceramic ring (types UF, MF, PF, RF)—are important for ensuring quality.
What are some common mistakes, and what safety precautions should be followed?
Common errors, such as weld defects or warping, can be avoided by using the correct parameters and performing test welds. Since high currents flow during welding (caution advised for pacemaker users) and the spark ignition produces a loud bang exceeding 90 decibels, hearing protection and personal protective equipment are mandatory. If you have any questions about your specific application, simply have your purchasing department contact the team at Bolzenschweißtechnik bsk + BTV GmbH directly at info@stud-welding.de.
