how to bend acm panels

Forming ACM panels for curved aluminum ceilings or facades requires careful handling to avoid damaging the composite. Cold-bending on a hand or hydraulic brake is common for simple bends. Place the panel skins down on the brake, and use a bending former with a radius at least 5–10 times the panel thickness to prevent core separation.

Roll-forming or roll-bending machines produce continuous curves, ideal for large radii and multiple panels. Feed panels between adjustable rolls that gradually reduce the diameter. Monitor the exit curvature to achieve uniform bends without wrinkling the aluminum skins. Use support tables to cradle panels as they exit the rolls.

When fabricating on-site, ensure ambient temperature above 10 °C to maintain core flexibility. For tight-radius features, use a sheet-fed press brake with custom tooling. After bending, inspect edges for any cracks or delamination and apply edge sealant if needed.

Always consult the ACM manufacturer for minimum bend radii and approved forming methods. Proper bending techniques enable designers to create fluid, sculptural aluminum ceiling and facade elements while maintaining structural integrity and finish quality.