Patent DE-102012011217-A1 (DE)
Title: Device, used to make three-dimensional hybrid component, comprises supporting unit, applying unit, and radiation unit, where plate-like body is disposed on upper side of support, is formed as contoured plug holder and comprises recesses
Inventor: HERZOG FRANK
IPC: B22F3/105
Filed: 2012-06-06
Abstract: The device comprises a supporting unit for supporting an object with a height adjustable support (5) during construction, an applying unit (3) for applying a construction material (1) to a building surface or a previously formed layer, and radiation unit for selectively radiating the layers of the building material to a cross-section of corresponding object points. A plate-like body (4) is disposed on an upper side of the support, is formed as a contoured plug holder for a prefabricated object base to be formed, and comprises recesses. The device comprises a supporting unit for supporting an object with a height adjustable support (5) during construction, an applying unit (3) for applying a construction material (1) to a building surface or a previously formed layer, and radiation unit for selectively radiating the layers of the building material to a cross-section of corresponding object points. A plate-like body (4) is disposed on an upper side of the support, is formed as a contoured plug holder for a prefabricated object base to be inserted, and comprises recesses whose shape and an outer contour correspond to the cross section of the object to be inserted into a prefabricated base and in which a prefabricated lower part of the object is fixed. The recesses are provided with different shapes and contours arranged for different prefabricated object parts, and are uniformly distributed over a surface of the plug holder. The fixing of lower part of the object in the plug holder is carried out by generating a negative pressure which pulls the pre-fabricated lower part into the recess of the plug socket in a direction of the support. An upper part of the object is solidified by radiation and successive solidification of layers of a powder of building material. The fixation between the prefabricated object base and the plug holder is carried out by a releasable adhesive bond and by clamping. The clamping between the recess and the prefabricated object base is carried out increasing temperature of the plug holder for extending the recess and by cooling of the plug holder with plugged object part. The plug holder is formed as an upper part of a two-element body, which is fixed to a lower part, which is detachably connected to the support of the device using a tension centering device. The lower part of the body is a plate-like part, and is also provided with recesses whose cross-section and shape correspond to the recesses in the upper part. The upper part and lower part are laterally clamped with one another in a parallel position, and the object bases pass through the recesses of the upper part and engage in recesses of the lower part. A fluid film is provided between the upper part and the lower part. The recesses are formed in a polygonal, a star, a triangular, an octahedral, a partially rounded, a sickle or a semi-circular shape. The device further comprises connecting elements, an electronic reading unit, and a sensor unit. The connecting elements are identical to plug holders, are configured for connecting the lower part or the support, and are differ in number and/or shape of the recesses. The electronic reading unit reads a data source arranged on the plug holder. The data source is used to identify the plug holder. The object base has a circumferential projection, which is mounted on the plug holder, and a predetermined breaking point. The sensor unit is configured for detecting a position of the object lower part, and is formed as a camera or an infrared sensor.