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Browse Prior Art Database

Pre-cure concept

IP.com Disclosure Number: IPCOM000245745D
Publication Date: 2016-Apr-04
Document File: 1 page(s) / 8K

Publishing Venue

The IP.com Prior Art Database

Abstract

The idea deals with a method of making an assembly, e. g. an assembly of parts for an automobile body, comprising at least one metal part. The assembly may also comprise a second metal part or a composite part. The assembly may comprise two metal parts of the same kind of metal or of different kinds of metal.

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Pre-cure concept

The idea deals with a method of making an assembly, e. g. an assembly of parts for an automobile body, comprising at least one metal part. The assembly may also comprise a second metal part or a composite part. The assembly may comprise two metal parts of the same kind of metal or of different kinds of metal. It is known to adhere two parts with each other by using a structural adhesive. Structural adhesives are known in pastures form and in tape form. Structural adhesives can be used to adhere and seal parts relative to each other,
e. g. in a hem flange connection.

Usually structural adhesives are not tacky enough at room temperature when they get applied to the parts to reliably hold the parts together. The tack only develops when the adhesive gets cured. In the production process of automotive assemblies, e. g. door assemblies or hood assemblies, the parts that are supposed to be adhered to each other sometimes need to be moved after the adhesive is applied and the two parts are put together but before the adhesive is cured.

The current idea provides a solution to this problem by providing an additional method step, where the adhesive that is already applied to a part and that is positioned between two parts that need to be adhered to each other, gets pre-cured on predetermined spots by applying heat in the range of 200 to 600 °C for 10 to 100 sec. The heat may for example be applied with electric heat cartridges that are positioned on both s...