Patent ID: 11969783
Assignee: MAGNA INTERNATIONAL INC.
Field: Materials, metallurgy (Chemistry)
Classification: CPC B  C  Y | IPC B

Claim 7:
8. A method of manufacturing an insert for a shot sleeve of a die casting apparatus, comprising the steps of:
forming a base layer including metal;
forming at least one middle layer on the base layer;
forming an inner layer including ceramic on the at least one middle layer, the at least one middle layer including metal in an amount greater than an amount of metal in the inner layer, and the at least one middle layer including ceramic in an amount less than an amount of the ceramic in the inner layer; and
the steps of forming the base layer, the at least one middle layer, and the inner layer including an additive manufacturing process;
wherein the metal of the base layer and the metal of the at least one middle layer includes steel; the metal of the at least one middle layer further includes an alloy of chromium, iron, and molybdenum; and the ceramic of the at least one middle layer and the ceramic of the inner layer includes zirconium oxide.