The shockwave in water accelerates the workpiece and brings it into a viscoplastic state at impact onto the die, enabling forming of complex shapes at high speeds in cold conditions. All of which happens in a matter of less than a millisecond. The total cycle time is within seconds, including charging time of the system.
This process allows forming of parts up to a few squared meters in size. An array of electrodes can be placed over a large workpiece, enabling pressure distribution according to the product’s topology, still using a one-sided die to create complex shapes and fine details.
EHF Benefits
Product Performance
- Significant increased formability of metals and even material distribution
- Springback reduction
- Complex engraving and sharp lines can be easily formed
- Extremely good capability to calibrate parts
- High-quality surface finish of part
Green & Clean Process
- Uses low amounts of energy
- Uses low quantity of water in closed circuit loops
Process Performance
- A single-step, extremely fast process
- Only a single one-sided die is required (1 EHF system can replace a heavy 5-step press system)
- Higher formability (high velocity deformation)
- Less chance of tears due to friction as no contact occurs between tool and part
- Can be combined with any other forming technology
- Allows forming of parts up to a few square meters in size
- Forming of male and female shapes (negative & positive)
- Equipment has small footprint
Système EHF
Capacité de production
- Jusqu'à 700 000 pièces/an en 3 productions
- Fonctionnement entièrement automatisé
- Changement rapide d'outils
Caractéristiques des produits fabriqués
- Bouchons de parfum : jusqu'à 50 mm de diamètre, 80 mm de longueur
- Corps de rouge à lèvres : jusqu'à 50 mm de diamètre, 80 mm de longueur
- Couvercles décoratifs : jusqu'à 70 mm de diamètre
- Matériaux : aluminium jusqu'à 1,2 mm d’épaisseur – autres matériaux et épaisseurs sur demande
Empreinte au sol
- Taille de la cellule : 2000 mm x 5300 mm x 2250 mm (h)
- Comprend : le générateur, la cellule de formage, l’unité de gestion de l’eau, l’unité principale, l’armoire électrique et le convoyeur de pièces
Consommation électrique
Inférieure aux systèmes conventionnels