Abstract: A discrete die for forming a three-dimensionally curved surface. The discrete die includes a frame and parallel pins which are individually movable in a first longitudinal direction relative to the frame. The pins are arranged in parallel rows and front ends of the pins define the three-dimensionally curved surface. Further included are substantially plate-shaped separating elements and at least one of which is situated between the rows. Also included are pressure elements for pressing against the rows of pins and configured to push off against the frame in the radial direction of the pins. A surface of some of the plate-shaped separating elements extends parallel to the first longitudinal direction, the surface being corrugated in the second longitudinal direction, at least during use of the discrete die.

Abstract: The disclosure provides a discrete die (1) for forming a three-dimensionally curved surface, comprising a frame (2), parallel pins (4) which are individually movable in their longitudinal direction relative to the frame, which pins are arranged in parallel rows (6) and whose front ends define said three-dimensionally curved surface, at least substantially plate-shaped separating elements (7) between said rows, as well as pressure elements (8, 9) for pressing the rows of pins with the separating elements there-between together whilst pushing off against the frame in the radial direction of the pins. At least the surface of at least some of the plate-shaped separating elements that extends parallel to the longitudinal direction is corrugated in the longitudinal direction of the rows (6), at least during use of the discrete die for producing a product.