Production of a helix, permanent shape for a helix and helix

摘要

The invention relates to a method for producing a helix (2), which comprises a step for providing a permanent mold (1) with mold halves (1.1, 1.2) that can be joined in a mold division plane (1.5). Furthermore, the method comprises a step for joining the mold halves (1.1, 1.2) of the permanent mold (1), so that the permanent mold (1) in the assembled state has a cavity (1.3) which has a shape of the helix (2) or a shape of a bent one Specifies helix (2 '), the predetermined helix (2) or the bent helix (2') specifying a flattened winding cross-sectional profile, which has two opposite flat sides (2.1, 2.1 '), an outer side (2.2) and one of the outer side ( 2.2) opposite inner side (2.3), and wherein the plane of division (1.5) extends at least in sections along the outer side (2.2) and / or the inner side (2.1) and / or from edges of the winding cross-sectional profile. The method also comprises the removal of burrs (3) extending on the outside (2.2) and / or the inside (2.3) and / or the edges of the cast body in the mold parting plane (1.5). The invention further relates to a permanent mold for carrying out the method and a helix which was produced using the method or using the permanent mold.