Computer program products configured for additive manufacturing of three-dimensional articles
First Claim
1. A computer program product comprising at least one non-transitory computer-readable storage medium having computer-readable program code portions embodied therein, the computer-readable program code portions comprising one or more executable portions configured for:
- directing application of a first powder layer on a work table;
determining a length of at least one of two adjacent of two or more parallel scan lines either applied to the first powder layer or to be applied to the first powder layer;
setting a distance between the two adjacent of two or more parallel scan lines as a function of the determined length, wherein the function of the determined length is such that as the determined length increases;
(a) the distance increases while the determined length is less than a predetermined value, and (b) the distance is a constant value while the determined length is equal to or greater than the predetermined value; and
directing a first energy beam from a first energy beam source over said work table so as to cause said first powder layer to fuse in first selected locations according to a corresponding model of said at least one three-dimensional article so as to form a first cross section of said three-dimensional article, where said first energy beam is configured to fuse at least a first region of a first cross section either with said two adjacent of said two or more parallel scan lines extending in a first direction and separated by said set distance, or with at least one additional parallel scan line extending in said first direction and separated from said two adjacent of said two or more parallel scan lines by said set distance.
1 Assignment
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Accused Products
Abstract
A computer program product is configured for forming at least one three-dimensional article through successive fusion of parts of a powder bed, which parts correspond to successive cross sections of the three-dimensional article, by: providing a model of the at least one three-dimensional article; applying a first powder layer on a work table; directing a first energy beam from a first energy beam source over the work table causing the first powder layer to fuse in first selected locations according to corresponding models to form a first cross section of the three-dimensional article, where the first energy beam is fusing at least a first region of a first cross section with parallel scan lines in a first direction; varying a distance between two adjacent scan lines, which are used for fusing the powder layer, as a function of a mean length of the two adjacent scan lines.
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Citations
19 Claims
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1. A computer program product comprising at least one non-transitory computer-readable storage medium having computer-readable program code portions embodied therein, the computer-readable program code portions comprising one or more executable portions configured for:
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directing application of a first powder layer on a work table; determining a length of at least one of two adjacent of two or more parallel scan lines either applied to the first powder layer or to be applied to the first powder layer; setting a distance between the two adjacent of two or more parallel scan lines as a function of the determined length, wherein the function of the determined length is such that as the determined length increases;
(a) the distance increases while the determined length is less than a predetermined value, and (b) the distance is a constant value while the determined length is equal to or greater than the predetermined value; anddirecting a first energy beam from a first energy beam source over said work table so as to cause said first powder layer to fuse in first selected locations according to a corresponding model of said at least one three-dimensional article so as to form a first cross section of said three-dimensional article, where said first energy beam is configured to fuse at least a first region of a first cross section either with said two adjacent of said two or more parallel scan lines extending in a first direction and separated by said set distance, or with at least one additional parallel scan line extending in said first direction and separated from said two adjacent of said two or more parallel scan lines by said set distance. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification