Abstract: A method includes producing a light metal cast component from a melt of an aluminium casting alloy. The alloy contains, by weight, silicon with 3.5 to 5.0%, magnesium with 0.2 to 0.7%, titanium with 0.07 to 0.12%, boron with a maximum of 0.012%, and optionally further alloy elements together with less than 1.5%, the rest, aluminium as well as unavoidable impurities, wherein the melt is produced from a base melt, a first grain refiner of an aluminium-silicon alloy and a second grain refiner of an aluminium-titanium-alloy, wherein the melt, in relation to the total weight, contains in total an amount of 0.1 to 5.0% of the first and the second grain refiner; wherein the casting is carried out by a low-pressure method and the melt is acted upon by compacting after the casting.

Abstract: A device for casting a metallic component comprising an outer undercut comprises a base body with a first end portion and a circumferential side wall comprising a tapering inner surface; a first die part that is insertable into the base body and that forms a first molding surface for the component to be cast; a plurality of side die parts, which are insertable into the base body and which, in the inserted state, are radially supported against the circumferential side wall of the base body and form a die ring comprising an inner molding surface for the component to be cast; a second die part which is moveable into the die ring formed by the side die parts to a casting position, and which forms a second molding surface for the component to be cast, wherein in the casting position, the second die part is arranged in a completely contact-free manner with respect to the first die part.