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

US11733678B2 · kind B2 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Frank Heinrichsdorff · Teltow, DE
• Darya Kastsian · Falkensee, DE
• Ursus Krüger · Berlin, DE
• Daniel Reznik · Berlin, DE
• Heinz Neubert · Großenhain, DE

Key dates

• Filing date: Jun 3, 2019
• Grant date: Aug 22, 2023
• Expiry date: Aug 1, 2040

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P10/25
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

Various embodiments include a method for additive manufacturing of a building structure on using a simulation comprising: accessing a data set for the building structure describing the building structure in layers; calculating a global heat development in previous layers based a building history and heat input by an energy beam; determining a local heat development in a vicinity of the heat input; determining the process control based on the global and the local heat development; loading correction measures from a database; and assigning the correction measures locally to individual vectors of a tool path of the energy beam. At least one mass integral is calculated for individual vectors of the tool path. The measures are determined on the basis of a comparison of the calculated mass integral with mass integrals stored in the database.