installation of forming at least one corner region on a rectangular metal plate, and method of forming at least one corner region on a rectangular metal plate

摘要

installation and method of forming at least one corner region (1.0) on a rectangular metal plate (1), where the corner region (1.0) is formed at the intersection between the first section (1.1) and the second section (1.2) of metal plate (1). to form a corner region, the first section (1.1) of the metal plate (1) is folded first, and then the second section (1.2) of the said metal plate (1) is folded, in that at least the region of the first section (1.1) closest to the corner region (1.0) is retained and held immobile during the aforementioned fold of the second section (1.2) and the aforementioned region of the first section (1.1) is released after completion of the mentioned fold of the second section (1.2).