What Is a Shear Stud Installation?
Stud welding is the process of welding specially manufactured studs onto metal surfaces using the arc welding method. Widely used in steel structures, composite flooring systems, and bridge projects, this method provides high-strength and rapid connections.
Thanks to the stud welding method, connections can be made directly to the main structural steel without the need for nuts, bolts, or drilling. This not only saves time but also enhances structural integrity. However, certain critical technical details must be taken into account to ensure proper stud welding.
What Certifications Should You Look for Shear Studs?
The selection of studs is one of the most critical factors directly affecting the success of the application. The studs supplied must have the following certifications:
- EN ISO 13918 – Standard for stud fasteners
- ISO 14555 – Stud welding application standard
- TÜV Austria Test Report – Independent quality verification
- ISO 9001 – Production quality management system
- 3.1 Material Certificate (EN 10204) – Verification of chemical and mechanical properties
These certificates guarantee that critical mechanical properties of the stud, such as carbon content, tensile strength (Rm), yield strength (Re), and elongation, are within specified limits. Products without these certificates may cause post-weld breakage or fatigue cracks.
Why Are the Properties of a Ceramic Ferrule Important?
The ceramic ring used in the stud welding process surrounds the weld pool, preventing the molten metal from spreading and ensuring the formation of a smooth weld joint.
A high-quality ceramic ring should have the following characteristics:
- High-temperature resistance
- Low humidity
- Smooth inner surface geometry
- Proper positioning of gas venting channels
- Resistance to spatter
Moist or low-density ceramic rings may crack during welding, thereby compromising arc stability. This significantly reduces weld quality.
Key Considerations for the Application Surface
Proper preparation of the surface to be welded is essential for a high-quality welded joint.
Surface to be welded:
- It must be free of grease, rust, paint, and dirt
- If there is a galvanized coating, it must be cleaned
- The surface must be flat and smooth
- It should not be damp or wet
Surface coatings or oxide layers can hinder arc formation and lead to insufficient penetration. This, in turn, reduces weld strength.
Do Weather Conditions Affect Stud Welding?
Yes, weather conditions can directly affect the stud welding process.
Particular attention should be paid to the following situations:
- Rain and humidity can cause evaporation in the source area, leading to the formation of pores.
- Low temperatures can cause the main ingredient to become brittle.
- Wind can disrupt arc stability and cause irregular weld formation.
In outdoor applications, the surface temperature and environmental conditions must be checked before welding. If necessary, local protective equipment should be used.
The Importance of Working with Manufacturer-Approved Partners
Reliable Stud Installation with ATOS Forming
ATOS Forming has reliable partners across various regions of Turkey for shear stud installation. Through its solution partners in the Marmara, Aegean, Central Anatolia, and other regions, ATOS Forming is pleased to support its customers in achieving proper shear stud installation. To find the partner recommended by the manufacturer that best suits your project and achieve maximum efficiency, you must contact us.
Shear stud installation, when carried out with proper planning, the right equipment, and the right partner, is essential for the safety and performance of your structures. ATOS Forming is always by your side throughout this process.
More Information
With our specially designed production line for shear stud production, we manufacture 150,000 shear studs per month in compliance with TS EN ISO 13918 standards. In addition to standard shear studs in sizes ranging from 50mm to 250mm in lengths and diameters of 16, 19, 22, and 25, we also offer custom production for customer projects in lengths such as 60, 90, 110, and 220 mm. For more detailed information about shear studs and applications tailored to your needs, please contact us.