Patent ID: 7635825

Claim:
A method for production of three-dimensional bodies by successive fusing together of selected areas of a powder bed, which parts correspond to successive cross sections of the three-dimensional body, the method comprising: applying powder layers to a work table, determining an operating scheme for the powder layer, supplying energy from a radiation gun, according to the operating scheme, to said selected area within the powder layer, and fusing together that area of the powder layer selected according to said operating scheme for forming a cross section of said three-dimensional body, a three-dimensional body being formed by successive fusing together of successively formed cross sections from successively applied powder layers, where fusing includes dividing said selected area into a plurality of smaller part areas which each comprise an inner area I and an edge R and said determining an operating scheme includes determining priority for treating said plurality of smaller part areas such that heating of the selected area takes place in a relatively homogeneous way.