Three-dimensional additive manufacturing apparatus, control method for three-dimensional additive manufacturing apparatus, control program for three-dimensional additive manufacturing apparatus, and jig

摘要

Control the temperature rise of the workpiece (laminated base material) to suppress the occurrence of thermal strain. A three-dimensional additive manufacturing apparatus, which includes the following configuration. The three-dimensional additive manufacturing apparatus includes a material injection unit that injects a material of the three-dimensional additive manufacturing object onto a workpiece on which the three-dimensional additive object is formed. The three-dimensional additive manufacturing apparatus includes a light beam irradiation unit that irradiates the sprayed material with light beams. Furthermore, the three-dimensional additive manufacturing apparatus includes a jig to which the workpiece is detachably attached. The jig has a flow path to which a cooling medium for cooling the workpiece is supplied.