Cold Forming

Bending, expanding

Tubes are shaped in many different ways in KOHLHAGE production. As these production processes are carried out without the addition of heat, they are referred to as “cold forming”.
The spectrum of KOHLHAGE processes in the machining of pipes ranges from bending to expanding the pipe diameter. In particular, the combination of these processes while maintaining tight customer-specific tolerances are a speciality of KOHLHAGE E-Tech.

Bending: It doesn’t matter whether it’s a round tube or a rectangular tube, KOHLHAGE bends tubes up to 50 mm outside diameter and a wall thickness of up to 3 mm made of steel, stainless steel, aluminium, copper or brass. In addition, the KOHLHAGE specialists have perfected the bending process to such an extent that they can recommend not only the appropriate bending angle but also the optimum distance between two bending radii. KOHLHAGE customers benefit from this.

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