Plate component with a laser welding fair triangular corner, the associated sheet-metal blank, as well as a method for producing and optimization of the sheet metal blank

摘要

The present invention relates to a from a sheet metal blank (1) is bent sheet-metal (10) with at least one triangular corner (11), wherein two edges (12, 13) of the triangular corner (11) by a first or a second, in each case by an inner radius of curvature (r_{i, 1}, R_{i, 2}) bent sheet metal limb (2, 3) of the sheet metal blank (1) and the third edge (14) of the triangular corner (11) by means of two cutting edges (4, 5) of the two bent sheet metal limb (2, 3) are formed, wherein the sheet metal blank (1) a the two cutting edges (4, 5) which forms the inner corner (6) and a in the inner corner (6), which is equipped with a wedge-shaped recess (7) by means of two wedge limb (7a, 7b) and a rounded point of the wedge (7c) is formed. According to the invention, the sheet metal blank (1) of the point of intersection (8) of the two via the rounded tip (7c), imaginary wedge limb (7a, 7b) in a distance u to the bending line (a) of the first bending bar (2) and at a distance x to the bending line (b) of the second bending bar (3) is provided that the first wedge limb (7a) through the point of intersection (8) and a further point (9a), which in a distance v to the bending line (a) of the first bending bar (2) and at a distance z to the bending line (b) of the second bending bar (3) is provided, is defined and at the edge (4) of the first bending bar (2) ends, that the second wedge limb (7b) through the point of intersection (8) and a further point (9b), which in a distance t to the bending line (a) of the first bending bar (2) and at a distance y to the bending line (b) of the second bending bar (3) is provided, is defined and at the edge (5) of the second bending bar (3) terminates, and that in the case of the sheet metal blank (1) the spacings t, u, v, x, y, z in dependence on the inner bending radii (r_{i, 1}, R_{i, 2}) the end sheet shanks (2, 3) of the uniform (10), of the thickness of the sheet metal (s) and from the shortening factor (vk), by which the sheet metal blank (1) in the case of a bending extended, are defined as:T = (0,7 · s + vk / 2) ± 20%,u = (1,0 · r_{i, 1}) ± 20%,v = (1,0 · r_{i, 1}) ± 20%,x = (1,0 · r_{i, 2}) ± 20%,y = (0,25 · r_{i, 2}) ± 20%, andz = (vk / 2 – 0,1) ± 20%.