BEAM POWDER BED FUSION ADDITIVE MANUFACTURING PROCESS AND MANUFACTURING DEVICE FOR AN EXECUTION OF THE PROCESS

• Main Authors: Logvinov, Ruslan, Heinrichsdorff, Frank, Drendel, Jan
• Format: Patent
• Language: English; French; German
• Published: 04.10.2023
• Subjects: ADDITIVE MANUFACTURING TECHNOLOGY; ADDITIVE MANUFACTURING, i.e. MANUFACTURING OFTHREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVEAGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING,STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; CASTING; MAKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; PERFORMING OPERATIONS; POWDER METALLURGY; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; WORKING METALLIC POWDER; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

With the invention a beam powder bed fusion additive manufacturing process of a component by applying of at least one substrate layer with at least one layer material on a substrate surface of a substrate with following steps is provided: Arranging of at least one precursor layer with at least one powdery precursor material of the layer material on the substrate surface of the substrate and fusion of the powdery precursor material with introduction of fusion thermal energy into the powdery precursor material with the aid of at least one fusion beam such that the substrate layer on the substrate surface is formed. The process is characterized in that with the aid of at least one scanning beam a heating of at least one manufacturing part of the component by introduction of heating energy into the manufacturing part is carried out such that a substantially homogenous temperature distribution of the manufacturing part during the fusion results. The manufacturing part is the substrate, the substrate layer or the precursor layer. With the aid of the scanning beam a controlled heating of the manufacturing part is carried out. For that preferably following additional steps are carried out: Determining of a heat flux density distribution of the manufacturing part and generation of a scan pattern concerning the determined heat flux density distribution. Preferably, a heat flux density distribution to modulate the range of the heating parameter is used which is computed by a numeric simulation. Besides the process a respective manufacturing device is disclosed. The invention is used for building a three-dimensional object on the substrate surface of the substrate.