A process for the manufacture of metal products includes the steps of providing a mold including a first portion made of an aggregate and a binder, delivering a molten metal into the mold, removing a first portion of the mold with a fluid and solidifying at least one targeted portion of the molten metal which will form the metal product with the fluid. A flow of fluid to the mold is stopped for a period of time. Subsequently, a remaining portion of the molten metal is solidified to form the metal product. The at least one targeted portion of the metal product has better mechanical properties than does a remaining portion of the metal product. A unitary, one-piece aluminum alloy component with differing mechanical properties is also disclosed.

A solid wheel for a rail vehicle includes a wheel rim arranged on the circumference of the solid wheel, a tread and a hub for a wheelset shaft, wherein the wheel rim is connected to the hub via an end wall and a rear wall, where the hub is arranged at the center of the solid wheel and includes a longitudinal axis such that a high radial and axial strength of the wheel flange as the basis for a low sound emission is provided by virtue of the solid wheel forming a cavity that is delimited by the end wall and the rear wall, where the end wall and the rear wall transition into each other below the wheel flange in an arched manner, and the end wall has first openings and the rear wall has second openings in order to open the cavity outwards in a spoked manner.

A chassis component for a motor vehicle is disclosed. The chassis component (1) is manufactured at least partially from a multi-layer steel sheet (10, 20, 30). The multi-layer steel sheet (10, 20, 30) includes at least three steel layers, including two outer steel layers (11, 12; 21, 22; 31, 32) and one inner steel layer (13, 23, 33). At least one outer steel layer (11, 12; 21, 22; 31, 32) of the multi-layer steel sheet (10, 20, 30) has a tensile strength of at least 1200 MPa. A method for producing a chassis component for a motor vehicle, in particular a wheel (1) or a part thereof, is also disclosed.

A process for the manufacture of metal products includes the steps of providing a mold including a first portion made of an aggregate and a binder, delivering a molten metal into the mold, removing a first portion of the mold with a fluid and solidifying at least one targeted portion of the molten metal which will form the metal product with the fluid. A flow of fluid to the mold is stopped for a period of time. Subsequently, a remaining portion of the molten metal is solidified to form the metal product. The at least one targeted portion of the metal product has better mechanical properties than does a remaining portion of the metal product. A unitary, one-piece aluminum alloy component with differing mechanical properties is also disclosed.

A one-piece axle and a method of manufacture. The method may include providing a one-piece axle blank that has a shaft and a flange. The shaft may have a hole that may extend along an axis. The flange may extend radially outward from an end of the shaft. The shaft may be radially forged against a first mandrel to axially elongate the shaft.

A material and method for manufacturing components. The method includes squeeze casting the material into a component of a desired shape and flow-forming the component that has been squeeze cast to refine the shape of the component. The method also includes heat treating the component to enhance the microstructure of the component and machining the component to further refine the shape.

The invention provides a coating film having excellent adhesion, even without a chemical conversion film treatment being carried out as an undercoat treatment, and a metal automotive part having the coating film. A powder is deposited by powder-coating onto the surface of a metal automotive part that has been quenched after forging, and tempering of the metal automotive part and bake-hardening of the deposited powder are carried out simultaneously, thereby forming a skin film on the surface of the metal automotive part. The surface of the metal automotive part before the powder is powder-coated thereon is a work-hardened basis material surface that has been not subjected to a chemical conversion filming treatment.

A chassis component for a motor vehicle is disclosed. The chassis component (1) is manufactured at least partially from a multi-layer steel sheet (10, 20, 30). The multi-layer steel sheet (10, 20, 30) includes at least three steel layers, including two outer steel layers (11, 12; 21, 22; 31, 32) and one inner steel layer (13, 23, 33). At least one outer steel layer (11, 12; 21, 22; 31, 32) of the multi-layer steel sheet (10, 20, 30) has a tensile strength of at least 1200 MPa. A method for producing a chassis component for a motor vehicle, in particular a wheel (1) or a part thereof, is also disclosed.

A coating film having excellent adhesion, even without the presence of a chemical conversion film treatment as an undercoat, and a metal automotive part having the coating film. A powder is deposited by powder-coating onto the surface of a metal automotive part that has been quenched after simultaneously forging, and tempering the metal automotive part and bake-hardening the deposited powder to form a skin film on the surface of the metal automotive part. The surface of the metal automotive part before the powder is powder-coated thereon is a work-hardened material surface that has not been subjected to a chemical conversion filming treatment.

A vehicle wheel includes a first annular component, a second annular component configured to be separable from the first annular component and mechanically connected to and aligned with the first annular component about an axis of rotation of the wheel, and a plate. In some examples, when the first and second annular components are mechanically connected, the first and second annular components are configured to receive a tire and define a recess along an annular surface of the first and second annular components, the recess being configured to receive the plate. In addition, in some examples, when the plate is received in the recess, the plate inhibits relative rotation between the first annular component and the second annular component about the axis of rotation of the wheel.