Abstract: Additive manufacturing method includes providing first and second scanners having first and second overlapping fields of view, applying a layer of powder-based materials to a part bed, providing a laser source for each scanner, each laser source producing a laser beam, and directing its laser beam to its scanner. A first laser beam from the first scanner pre-heats the powder-based material along a tool path in a selected pattern, and a second laser beam from the second scanner melts the pre-heated powder-based material along a second tool path. The first laser beam may be a pre-heat beam, and the second laser beam may be a melt beam. An additive manufacturing system includes a laser source, first and second scanners to receive a pre-heat laser beam to pre-heat a portion of material in the part bed, and a melt laser beam to melt a portion of the pre-heated material to form a part layer.

Abstract: An additive manufacturing method includes providing a first and second scanners with fields of view that at least partially overlap. The method includes applying a layer of powder-based materials to the part bed and providing a number of laser sources that direct a number of laser beams to the first and second scanners. The laser beams are directed from the scanners to the part bed to selectively fuse the material to produce a layer of a three-dimensional part. The layer is formed by selectively directing laser energy to the material in a selected pattern, and synchronizing the movement of the laser beams to continuously process the selected pattern in each layer of the three-dimensional part. An additive manufacturing system includes first and second laser sources, first and second scanners, and a controller configured to operate the scanners and laser(s) for producing the three-dimensional printed part.

Abstract: An additive manufacturing method includes providing a first and second scanners with fields of view that at least partially overlap. The method includes applying a layer of powder-based materials to the part bed and providing a number of laser sources that direct a number of laser beams to the first and second scanners. The laser beams are directed from the scanners to the part bed to selectively fuse the material to produce a layer of a three-dimensional part. The layer is formed by selectively directing laser energy to the material in a selected pattern, and synchronizing the movement of the laser beams to continuously process the selected pattern in each layer of the three-dimensional part. An additive manufacturing system includes first and second laser sources, first and second scanners, and a controller configured to operate the scanners and laser(s) for producing the three-dimensional printed part.

Abstract: Additive manufacturing method includes providing a number of scanners with at least partially overlapping fields of view. The scanners are positioned such that respective optical axes thereof are at an angle relative to a normal part bed. The method includes positioning the fields of view such that a cumulative field of view is substantially equal to a surface area of a part bed. A layer of materials is applied to the part bed, and each scanner directs a beam from a laser emitter to the part bed to selectively fuse the material to produce a layer of a three-dimensional part.

Abstract: Additive manufacturing method includes providing first and second scanners having first and second overlapping fields of view, applying a layer of powder-based materials to a part bed, providing a laser source for each scanner, each laser source producing a laser beam, and directing its laser beam to its scanner. A first laser beam from the first scanner pre-heats the powder-based material along a tool path in a selected pattern, and a second laser beam from the second scanner melts the pre-heated powder-based material along a second tool path. The first laser beam may be a pre-heat beam, and the second laser beam may be a melt beam. An additive manufacturing system includes a laser source, first and second scanners to receive a pre-heat laser beam to pre-heat a portion of material in the part bed, and a melt laser beam to melt a portion of the pre-heated material to form a part layer.