KÖCO means safe stud welding
Technical information to make your welding technology even safer
Stud welding in building construction (PDF, 25 KB)
All KÖCO welding studs are made from materials suitable for stud welding. Dimensions and design of our standard products conform to DIN EN ISO 13918, any non-standard products supplied will be produced to correspond to the norm. If you wish to use a type of stud other than those listed, please send us your enquiry and consult our specialists about your welding task. KÖCO welding studs are available in different materials. Upon request the properties of each can be documented by test report 2.2 or inspection certificate 3.1 or 3.2 (EN 10204).
Advanced quality assurance in drawn-arc stud welding (PDF, 21.2 KB)
For many years, drawn-arc stud welding has been an well estabilished process for welding shear connectors in composite construction and for producing steel components in solid construction. The outstanding advantages are high efficiency of a good stud weld is higher than that of either the stud of the work piece material. The rules for inspection and testing of stud welds are laid down in the relevant norms and leaflets (DIN EN ISO 14555, DVS leaflet 0902, DVS leaflet 0904). However, most of these tests (bend test, radiographic test, macro examination) are destructive, and can therefore only be carried out on random samples. A complete proof of weld quality for each individual stud is not possible by these methods.
KÖCO - Composite construction (PDF, 1.26 MB)
An outstanding feature of efficient, innovative structures is very often an ideal combination of various different building materials. The favourable combination of steel, with its high tensile strength and ductility, and concrete, with its high compressive strength and good resistance to corrosion, has long been recognized in structural concrete construction. With the method of composite construction it is now possible to combine the positive features of steel construction and structural concrete, without having to accept the drawbacks. This means that a steel skeleton structure is combined with concrete parts so that a joint bearing effect is created. The steel beams bear the tensile forces, while the concrete bears the compressive forces and provides fire protection.
