METHOD FOR DETERMINING BUILDING INSTRUCTIONS FOR AN ADDITIVE MANUFACTURING METHOD, METHOD FOR GENERATING A DATABASE WITH CORRECTION MEASURES FOR CONTROLLING THE PROCESS OF AN ADDITIVE MANUFACTURING METHOD, AND A COMPUTER PROGRAM PRODUCT

摘要

The invention relates to a method for determining building instructions which describe the control of a process and which can be used in an additive manufacturing system (11) for an additive manufacturing method. A manufacture data set PAR is generated in order to produce the building structure in layers (25). A global heat development and a local heat development are taken into consideration. According to the invention, correction parameters are loaded from a database F on the basis of the global heat development, said correction parameters being assignable to locally individual vectors of a tool path as correction measures for controlling the process. The tool path defines the path which the energy beam (17) follows on the surface of the powder bed (13). The invention additionally relates to a method for determining correction parameters PAR for controlling the process in an additive manufacturing system (11). According to the invention, this is achieved in that the local heat development in the surroundings of the heat input of the energy beam (17) is calculated. The correction measures are derived from the heat development and are stored in a database F. The advantage of using both methods consists in that a precise simulation is only required in the mesoscale range and can already be carried out ahead of a manufacture preparation for the component (19). If the geometry of the component (19) is known, then only a macroscale simulation must be carried out in order to define the global heat development. Thus, the computing complexity of the simulation decreases significantly such that the modified method parameters PAR₁ can be easily found. The invention also relates to a storage format for the modified data and to computer program products for storing the programs.