MOLDING TOOL, METHOD OF MANUFACTURING THE SAME AND METHOD OF PRODUCING A COMPOSITE PART IN SAID TOOL

• Main Authors: SIESING, Leif, KJELLSTRAND, Rasmus, FROGNER, Kenneth
• Format: Patent
• Language: English; French; German
• Published: 29.05.2024
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Disclosed is a molding tool for producing a composite part using induction heating. The molding tool (1) has a mold (10) with a contact surface adapted to be in contact with a material to be transformed into a composite part, and an outer surface (12). The mold (10) is configured to be inductively heated by at least one main coil (21, 22) arranged in a meander-like pattern on the outer surface (12) of the mold (10), such that a magnetic field generated by an alternating electric current flowing through the at least one main coil (21, 22) induces currents in at least parts of the mold (10) to be heated, and at least one perimeter coil (23, 24) arranged on the outer surface (12) of the mold (10) configured to delimit at least one area of the mold to be inductively heated. The at least one main coil (21, 22) and the at least one perimeter coil (23, 24) comprise litz wires which are electrically insulated from the mold (10) and in operative communication with at least one processing means.