Patent ID: 11906945
Assignee: EOS GMBH ELECTRO OPTICAL SYSTEMS
Field: Materials, metallurgy (Chemistry)
Classification: CPC G  B  Y | IPC B  G

Claim 12:
13. A method for generating control data for a device for additive manufacturing of a manufactured product in a manufacturing process in which build-up material is built up and selectively solidified, wherein, for solidifying on a build field, irradiating of the build-up material with at least one energy beam takes place, wherein an impingement surface of the energy beam on the build field is moved in order to melt the build-up material in a target area in and around the impingement surface, the method comprising:
defining optimization criteria and/or secondary and/or boundary conditions relating to a local target temperature distribution in the target area of the build-up material for generating the control data for at least one irradiation mode, at which temperature distribution a melting of the build-up material within the target area is caused by heat conduction welding, and on the basis of the optimization criteria and/or secondary and/or boundary conditions, at least one optimized intensity profile of the energy beam is determined, wherein the optimized intensity profile of the energy beam at the impingement surface on the build field is substantially non-rotationally symmetric with respect to a beam axis running coaxially to the direction of incidence of the energy beam; and
generating the control data upon activating the device for additive manufacturing in the irradiation mode to irradiate the build-up material with an energy beam having substantially the determined optimized intensity profile,, wherein at least one of the secondary and/or boundary conditions relates to the fulfillment of at least one of the following parameters or specifications:
a maximum temperature;
a minimum temperature;
a continuous temperature profile at a boundary between two adjacent process zones; and
a minimum meltpool depth.