Being production manner of the foaming possible composite material semimanufacture the component which consists of the foaming metal core and the composite material and the said composite material which consist of

摘要

Its porosity be one based on the outgassing of uniform swelling agent powder diffused into the core material and the metal covering layer of a solid, and a metal foam core of closed porosity which is disposed in the metal cover layers Te, a method for manufacturing a component formed consisting of a metal foam core and not on the gas or moisture trapped in the core material, from the composite blank or blank of composite material. Therefore, water was removed by vacuum and gas from a powder mixture consisting of expanded powders and metal powder, the powder is compression molded on the core layer under vacuum. To form a blank of composite material, under the action of pressure, the core layer is bonded to metallic cover layer at least one at a temperature below the outgassing temperature of the expansion agent. Then is foamed to be a component of a given by re-shaping the workpiece blank of composite material is heated to a temperature / liquid within the solid of the metal powder and higher than the gas release temperature of the expanding agent powder.