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Forming

Forming is coupled to the formability of aluminium, which in turn is closely related to the extrusion process, including quenching and heat treatment, and to the quality of the ingot itself.

With the help of state-of-the-art in-house equipment, Sapa Technology performs thorough computer analyses and testing of sections formed by:

  • Hot-gas forming
  • Hydroforming
  • Bending

 

Hydroforming

Sapa is expert in hydroforming long aluminium beams. The operation starts with an extruded aluminium tube. Then, in one operation, it is given a three-dimensional shape.

The profile is placed in a die with the same inner geometry as the finished component. When pressed onto the die, using hydrostatic pressure, the profile then takes on the shape of the die.

Cross-sections can be modified on a section of the profile or on the entire profile. In one step, complicated details can be created with precision. The hydroforming operation also permits local changes to the details, such as domes or holes. This saves several processing steps, which can shorten lead times.

Bending


Bending creates high shaping accuracy. The profile is held tightly at both ends and the shaping takes place by the tool moving. Hardened metal can be bent for larger radii but smaller ones usually require soft annealed or T4 (half-hardened) metal.

Sapa Technology supports Sapa’s sales teams around the world with expert knowledge on:

  • Bending
  • Stretch forming
  • Roller bending
  • Press bending