METHOD FOR PRODUCING A SHEET METAL STRUCTURE OF COMPONENTS WHICH ARE GLUED TOGETHER

• Main Authors: HARTWIG, ANDREAS, PESCHKA, MANFRED, LUEHRING, ANDREAS
• Format: Patent
• Language: English; French; German
• Published: 16.02.2011
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; ALLOYS; CHEMISTRY; DYES; FERROUS OR NON-FERROUS ALLOYS; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; PAINTS; PERFORMING OPERATIONS; POLISHES; TRANSPORTING; TREATMENT OF ALLOYS OR NON-FERROUS METALS; USE OF MATERIALS AS ADHESIVES

The invention relates to a method for producing a sheet metal structure comprising at least two sheets of sheet metal which are connected to each other, wherein at least one of the sheets is coated with an adhesive that contains at least one reactive polymer and a hardener. The two sheets of sheet metal are then joined and optionally fixed to one another, subsequently they are plastically formed and only thereafter the adhesive connecting the two sheets is definitely hardened. In order to improve the production of shaped sheet metal composite parts, the invention proposes that the adhesive is an aqueous dispersion and, once an applied layer has dried, comprises a surface that is tack-free at 20 °C and has a hot-melt adhesive behaviour.