Method for producing a motor vehicle rim made of an aluminum alloy for a wheel of a motor vehicle and corresponding motor vehicle rim
AssigneeAudi AG
InventorsJaan Mattes Reiling, Jan Gaugler, Marc Hummel
Life of this patent
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Abstract
A method for producing a motor vehicle rim made of an aluminum alloy for a wheel of a motor vehicle, the motor vehicle rim having a rim base limited on opposite sides by an outer horn and an inner horn, a hub with a central recess and a hole circle, and a rim center connecting the rim base and the hub to one another. The motor vehicle rim is produced in one piece and continuously in a casting mold by die casting of a casting material, the casting material being the aluminum alloy.
Claims15
A method for producing a motor vehicle rim made of an aluminum alloy for a wheel of a motor vehicle, comprising:
- a rim base limited on opposite sides by an outer horn and an inner horn, a hub with a central recess and a hole circle, and a rim center connecting the rim base and the hub to one another, wherein the motor vehicle rim is produced in one piece and continuously in a casting mold by die casting of a casting material, the casting material being the aluminum alloy with constituents 6.5% by weight to 12.0% by weight of silicon, a maximum of 0.80% by weight of manganese, 0.25% by weight to 0.60% by weight of magnesium, 0.08% by weight to 0.50% by weight of zinc, a maximum of 0.30% by weight of zirconium, a maximum of 0.025% by weight of strontium, a maximum of 0.5% by weight of unavoidable impurities, and the remainder being aluminum, and the motor vehicle rim is heat-treated after the die casting, wherein the heat treatment includes a single-stage solution annealing, a subsequent quenching and a subsequent single-stage or multi-stage artificial ageing;
- wherein the single stage solution annealing takes place over a time period of at most 180 minutes.
A motor vehicle rim made of an aluminum alloy for a wheel of a motor vehicle wherein the motor vehicle rim has a rim base limited on opposite sides by an outer horn and an inner horn, a hub with a central recess and a hole circle, and a rim center connecting the rim base and the hub to one another, wherein the motor vehicle rim is produced in one piece and continuously in a casting mold by die casting of a casting material, the casting material being the aluminum alloy with constituents 6.5% by weight to 12.0% by weight of silicon, a maximum of 0.80% by weight of manganese, 0.25% by weight to 0.60% by weight of magnesium, 0.08% by weight to 0.50% by weight of zinc, a maximum of 0.30% by weight of zirconium, a maximum of 0.025% by weight of strontium, a maximum of 0.5% by weight of unavoidable impurities, and the remainder being aluminum, and the motor vehicle rim is heat-treated after the die casting, wherein the heat treatment includes a single-stage or multi-stage solution annealing, a subsequent quenching and a subsequent single-stage or multi-stage artificial ageing;
- wherein the single stage solution annealing takes place over a time period of at most 180 minutes.
Dependencies are inferred from the claim text.