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Metawell® Aluflex
Metawell® Aluflex
Metawell® Aluflex is a composite panel consisting of a thin corrugated aluminum sheet bonded to a flat cover sheet. This design allows the panel to be flexible in one direction and rigid in the other, making it suitable for forming structures. The panel can be easily bent around the axis parallel to the corrugation tops, with specific bending parameters required to ensure reproducibility and compensate for material spring-back.
When forming parallel to the corrugation, the panel remains flexible, allowing for smaller bending radii. It is recommended to conduct trials with samples to determine optimal working parameters, such as the overbending angle.
Forming perpendicularly increases the panel's stiffness, making it suitable for direct mounting, such as in curved ceiling linings. The corrugation should ideally be exposed to the outside to prevent flattening and ensure structural integrity.
The hydraulic press shaping process involves several steps: preparing the form, laying down and bending Metawell® Aluflex stripes, applying adhesive, and using a hydraulic press to form the structure. The process requires maintaining pressure and temperature until the adhesive hardens.
Similar to the hydraulic press, the membrane vacuum press process involves preparing the form, applying adhesive, and using a vacuum press to shape the panel. The vacuum is maintained until the adhesive sets, after which the formed panel is removed.
Catalog excerpts
metal sandwich technology Metawell® Aluflex Metawell® Aluflex
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metal sandwich technology
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metal sandwich technology For m ing p er p endi cularly t o th e corrugation Any transformation perpendicularly to the corrugation makes the structural element considerably stiffer so that it can frequently be mounted directly (e.g. for curved ceiling linings in rail vehicles). Particularly advantageous is to have the corrugation exposed to the outside (fig. 2). Metawell® Aluflex 05-02 / H4.7 is thus suitable for bending radii of more than approx. 100 mm. With smaller radii the corrugation tends to be „pulled flat“ and the corrugation is seen through the cover sheet. Is the bending done with...
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metal sandwich technology Typical production sequence Step 1: Prepare bottom part of the form bottom part of the form Metawell® Aluflex stripe Step 2: Lay down Metawell® Aluflex stripes facing each other bottom part of the form Metawell® Aluflex stripe 1 Metawell® Aluflex stripe 2 Step 3: Bend Metawell® Aluflex stripes on the form Metawell® Aluflex stripe bottom part of the form Metawell® Aluflex stripe 1 contact line Metawell® Aluflex stripe 2 Modifications and errors reserved
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metal sandwich technology Typical production sequence - continued Step 4: Apply Metawell® Aluflex stripe with adhesive Metawell® Aluflex stripe with adhesive (bended) bottom part of the form bottom part of the form Step 5: Lay sheet on Metawell® Aluflex stripe coated with adhesive Step 6: Place top part of the form above structure top part of the press top part of the form sheet (not bended) Metawell® Aluflex stripe with adhesive (bended) bottom part of the form bottom part of the press Modifications and errors reserved Metawell® Alufl
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metal sandwich technology Typical production sequence - continued Step 7: Close hydraulic press and keep pressure if and when necessary with certain temperature until the adhesive is hard top part of the press bottom part of the press Step 8: Open hydraulic press and remove top part of the form top part of the form Metawell® (bended) bottom part of the form bottom part of the press Metawell® (bended) Step 9: Take out the bended Metawell® panel Modifications and errors reserved bottom part of the form bottom part of the press Metawell® Alufle
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metal sandwich technology Typical production sequence - continued Step 4: Apply Metawell® Aluflex stripe with adhesive Metawell® Aluflex stripe with adhesive (bended) bottom part of the form Step 5: Lay sheet on Metawell® Aluflex stripe coated with adhesive Metawell® Aluflex stripe with adhesive (bended) bottom part of the form Step 6: Place membrane of the press above structure top part of the press membrane sheet (not bended) Metawell® Aluflex stripe with adhesive (bended) bottom part of the form bottom part of the press Modifications and errors reserved Metawell® Aluf
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metal sandwich technology Typical production sequence - continued Step 7: Close vacuum press, evacuate air and keep vacuum if and when necessary with certain temperature until the adhesive is hard top part of the press membrane sheet (not bended) Metawell® Aluflex stripe with adhesive (bended) bottom part of the form bottom part of the press Step 8: Open vacuum press top part of the press membrane Metawell® (bended) bottom part of the form bottom part of the press Step 9: Take out bended Metawell® panel Modifications and errors reserved Metawell® (bended) bottom part of the form bottom part of...
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Metawell® data sheets11 Pages
