초록 ▼

The composite article includes a core layer of an aluminium alloy. This core layer is arranged between two outer layer portions which are structured as mere images of each other relative to the core layer. Such an outer layer portion may include a layer of pure aluminium arranged on the core layer f

The composite article includes a core layer of an aluminium alloy. This core layer is arranged between two outer layer portions which are structured as mere images of each other relative to the core layer. Such an outer layer portion may include a layer of pure aluminium arranged on the core layer followed by a layer of carbon steel and finally a layer of an austenitic high-grade steel forming the outermost layer. This composite article has an excellent heat conducting property and is easily magnetizable. The arrangement of the individual layers does not lead to difficulties such as detaching of layers, rupturing of layers or the forming of waves during a cold deforming, drawing etc. of the composite article.

대표청구항 ▼

[ I claim:] [1.] A multi layer, cold deformable composite metal article for use in forming a deep drawn product comprising:a core layer portion;two outer layer portions;which core layer portion consists of pure aluminum or an aluminum alloy and is sandwiched between said two outer layer portions;and

[ I claim:] [1.] A multi layer, cold deformable composite metal article for use in forming a deep drawn product comprising:a core layer portion;two outer layer portions;which core layer portion consists of pure aluminum or an aluminum alloy and is sandwiched between said two outer layer portions;and which outer layer portions are structured as mirror images of each other relative to said core layer portion;each outer layer portion consisting of two layers, each of an austenitic stainless steel and;a further layer of a ferromagnetic ferritic stainless steel or a carbon steel sandwiched between said two layers of austenitic stainless steel, whereby a seven layer symmetrical composite metal article is provided that can be deep drawn with no dislocation of the layer portions with respect to one another.