APPARATUS FOR PRODUCING THREE-DIMENSIONAL WORKPIECE COMPRISING A PLURALITY OF POWDER APPLICATION DEVICES

• Main Authors: KROL, Toni Adam, SCHWARZE, Dieter, SCHÖNEBORN, Henner, ROESGEN, Lukas
• Format: Patent
• Language: English; French; German
• Published: 22.11.2023
• 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 CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG, OR MIXTURESCONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; WORKING CEMENT, CLAY, OR STONE; WORKING METALLIC POWDER; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

An apparatus (10) for producing a three-dimensional workpiece is provided, the apparatus (10) comprising: - a carrier (14) for receiving a raw material powder (18), - at least a first irradiation device (26) for selectively irradiating an electromagnetic or particle radiation beam (B) onto raw material powder (18) being deposited on at least one build area (16) of the carrier (14) in order to produce a workpiece made of said raw material powder (18) by an additive layer construction method, and - at least a first and a second powder application device (20) being configured to simultaneously deposit raw material powder (18) onto the same build area (16) to produce a sequence of raw material powder layers on top of one another, wherein the irradiation device (26) is configured to irradiate a section (S1-S4) of the build area (16) between the powder application devices (20).