Abstract: A cooling arrangement and method of manufacturing a cooling arrangement for power electronic components are disclosed. The method includes provisioning a powder-metallurgical substance and forming or pressing the substance to a green compact; sintering the green compact to a preform; shaping the preform to a cooling device with an enlarged-surface cooling structure, the enlarged-surface cooling structure comprises a plurality of cooling projections, the cooling projections formed via a pressure-loadable die by pressing a sub-section of the preform into form-defining recesses of the die while a base section remains, the base section connects the individual cooling projections; and jointing the cooling device via a material bond to a metal cast component by welding or soldering.

Abstract: A method for producing a cooling device includes the steps of providing a material and forming a cooling structure from the material, a sinter powder being used as the material, from which a green compact is produced by pressing, the green compact being sintered into a preform, and the cooling structure in the form of cooling elements being produced from the preform by forming, for which a part of the preform is pressed through a forming tool, forming being carried out in a plurality of forming steps.

Abstract: A method for producing a cooling device includes the steps of providing a material and forming a cooling structure from the material, a sinter powder being used as the material, from which a green compact is produced by pressing, the green compact being sintered into a preform, and the cooling structure in the form of cooling elements being produced from the preform by forming, for which a part of the preform is pressed through a forming tool, and the cooling structure is calibrated after forming.

Abstract: A method for manufacturing a cooling device includes the steps of providing a material and forming a cooling structure from the material, wherein a sintering powder is used as the material from which a green body is manufactured by pressing, which is sintered into a preform, and the cooling structure in the form of cooling elements is manufactured from the preform by deformation, whereby a part of the preform is pressed through the mold.

Abstract: A method for manufacturing a component from a metallic sintering powder comprises the steps of providing the sintering powder, pressing the sintering powder into a green compact in a press mold, sintering the green compact, wherein a first lubricant is added to the sintering powder, and wherein the press mold is provided with a further lubricant which has a kinematic viscosity at 20° C. of between 100 cSt and 450 cSt, at least in a partial area of the surface in which the sintering powder is in contact with the press mold.

Abstract: A safety switch useful for electric motor vehicles comprises a first electrical conductor, a second electrical conductor, a third electrical conductor and an actuator, wherein a gap is formed between the first conductor and the second electrical conductor, which gap can be bridged in an electrically conductive manner with the third electrical conductor by making contact with the first and second electrical conductors, wherein the third electrical conductor is arranged in a rest position from which the third electrical conductor can be brought by the actuator into the position bridging the gap, and wherein either the third electrical conductor consists at least partially of a porous material and/or at least one of the first and/or the second electrical conductor consists at least partially of a porous material and the porous material has a density of at least 80% of the theoretical density of the material.

Abstract: A method for hardening a metal component includes the steps: hating the metal component to a first temperature between 750° C. and 1100° C.; increasing the carbon content in the metal component by applying a carbon donor gas to the metal component at the first temperature; cooling the metal component to a second temperature which is by 40° C. to 100° C. lower than the first temperature; increasing the nitrogen content in the metal component by applying a nitrogen donor gas to the metal component at the second temperature; cooling the metal component to ambient temperature, wherein a sintered component is used as the metal component and, after increasing the nitrogen content in the sintered component and prior to cooling the sintered component to ambient temperature, the sintered component is heated to a third temperature which is by 50° C. to 250° C. higher than the second temperature.

Abstract: A method for hardening a metal component includes the steps: hating the metal component to a first temperature between 750° C. and 1100° C.; increasing the carbon content in the metal component by applying a carbon donor gas to the metal component at the first temperature; cooling the metal component to a second temperature which is by 40° C. to 100° C. lower than the first temperature; increasing the nitrogen content in the metal component by applying a nitrogen donor gas to the metal component at the second temperature; cooling the metal component to ambient temperature, wherein a sintered component is used as the metal component and, after increasing the nitrogen content in the sintered component and prior to cooling the sintered component to ambient temperature, the sintered component is heated to a third temperature which is by 50° C. to 250° C. higher than the second temperature.