Patent ID: 8333922

Claim:
A method of producing three-dimensional bodies which wholly or for selected parts consist of a composite of crystalline or nanocrystalline metal particles in a matrix of amorphous metal, the method comprising the applying of a metal powder layer ( 4 ) onto a heat-conducting base ( 1 , 13 ), successive melting of limited areas of the layer by means of a radiation gun ( 5 ) and cooling of the melted areas so that they can be made to solidify into amorphous metal, characterized in that the radiation gun, in connection with the melting of one or several limited areas of the layer, is regulated so that the melted area is cooled in accordance with a stipulated time-temperature curve in order to form a composite of crystalline or nanocrystalline metal particles in a matrix of amorphous metal; that the method is repeated until a continuous layer is formed, which contains composite metal to a desired extent; and that a new powder layer ( 4 ) is applied and the method repeated, the new layer being fused to the underlying layer for successive construction of the three-dimensional body.