US 12,420,582 B2
Method for producing a motor vehicle rim made of aluminium or an aluminium alloy for a wheel of a motor vehicle and corresponding motor vehicle rim
Jaan Mattes Reiling, Sassenberg (DE); Jan Gaugler, Neckarmühlbach (DE); Marc Hummel, Güglingen (DE); Detlef Kube, Sundern (DE); and Michael Timm, Plettenberg (DE)
Assigned to AUDI AG, Ingolstadt (DE); and SUPERIOR INDUSTRIES AUTOMOTIVE GERMANY GMBH, Lüdenscheid (DE)
Appl. No. 17/788,126
Filed by AUDI AG, Ingolstadt (DE); and Superior Industries Automotive Germany GmbH, Lüdenscheid (DE)
PCT Filed Jan. 8, 2021, PCT No. PCT/EP2021/050219
§ 371(c)(1), (2) Date Jun. 22, 2022,
PCT Pub. No. WO2021/144197, PCT Pub. Date Jul. 22, 2021.
Claims priority of application No. 102020100701.9 (DE), filed on Jan. 14, 2020.
Prior Publication US 2023/0042862 A1, Feb. 9, 2023
Int. Cl. B60B 3/06 (2006.01); B22D 17/14 (2006.01); B22D 25/02 (2006.01); B60B 3/02 (2006.01); B60B 3/10 (2006.01); C22C 21/02 (2006.01)
CPC B60B 3/06 (2013.01) [B22D 17/14 (2013.01); B22D 25/02 (2013.01); B60B 3/02 (2013.01); B60B 3/10 (2013.01); C22C 21/02 (2013.01); B60B 2310/202 (2013.01); B60B 2310/54 (2013.01); B60B 2360/104 (2013.01); B60B 2900/112 (2013.01); B60B 2900/113 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for manufacturing a motor vehicle rim made of aluminum or an aluminum alloy for a motor vehicle wheel, comprising:
vacuum die casting a casting material in a casting mold; and
forming the motor vehicle rim in the casting mold continuously and in one piece;
wherein the motor vehicle rim, as formed in the casting mold, has a rim base delimited on opposite sides by an outer horn and an inner horn, a hub with a central recess and a hole circle as well as a rim center connecting the rim base and the hub to one another and acting eccentrically on the rim base in a longitudinal section, wherein the motor vehicle rim has at least one of:
a smallest wall thickness greater than 0 mm and of at most 15 mm at least in some regions,
a curvature with a smallest radius of curvature greater than 0 mm and of at most 4 mm, and
a demolding surface running in one or both of: an axial direction and in a radial direction, and in the axial direction and in a tangential direction, with respect to a longitudinal central axis of the motor vehicle rim, which surface completely lies in an imaginary plane, wherein the plane encloses an angle greater than 0° and of at most 4° with the longitudinal central axis.
 
20. A motor vehicle rim made of aluminum or an aluminum alloy for a wheel of a motor vehicle, wherein the motor vehicle rim has a rim base delimited on opposite sides by an outer horn and an inner horn, a hub with a central recess and a hole circle as well as a rim center connecting the rim base and the hub to one another and acting eccentrically on the rim base in a longitudinal section, wherein the motor vehicle rim is manufactured in one piece and continuously in a casting mold by vacuum die casting of a casting material, wherein the motor vehicle rim has at least one of:
a smallest wall thickness greater than 0 mm and of at most 15 mm at least in some regions,
a curvature with a smallest radius of curvature greater than 0 mm and of at most 4 mm, and
a demolding surface running in one or both of: an axial direction and in a radial direction, and in the axial direction and in a tangential direction, with respect to a longitudinal central axis of the motor vehicle rim, which surface completely lies in an imaginary plane, wherein the plane encloses an angle greater than 0° and of at most 4° with the longitudinal central axis.