POWDER BED MELTING BINDING DEVICE

• Main Author: HAGIWARA TADASHI
• Format: Patent
• Language: English; Japanese
• Published: 08.02.2018
• 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; CASTING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; MACHINE TOOLS; MAKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; POWDER METALLURGY; SOLDERING OR UNSOLDERING; TRANSPORTING; WELDING; WORKING BY LASER BEAM; WORKING METALLIC POWDER

PROBLEM TO BE SOLVED: To provide a powder bed melting binding device capable of continuing molding for long time even when laser beam with high output is applied.SOLUTION: There is provided a powder bed melting biding device 10 having a laser beam ejecting part 201 for ejecting a laser beam, a chamber 11 having a transmission window 12 of the laser beam and capable of reducing pressure, a thin layer formation part 202 arranged in the chamber 11 and for forming a thin layer of a powder material and a reflector 13 arranged between the transmission window 12 and the thin layer formation part 202 and directing a light path of the laser beam to the thin layer formation part 202.SELECTED DRAWING: Figure 1 【課題】高出力のレーザ光を照射した場合であっても、長時間造形を続けることができる粉末床溶融結合装置を提供する。【解決手段】レーザ光を出射するレーザ光出射部２０１と、レーザ光の透過窓１２が設けられた減圧可能なチャンバ１１と、そのチャンバ１１内に設けられ、粉末材料の薄層が形成される薄層形成部２０２と、透過窓１２と薄層形成部２０２との間に配置され、レーザ光の光路を薄層形成部２０２に向ける反射鏡１３と、を備えた粉末床溶融結合装置１０が提供される。【選択図】図１