3D 3D Integrated inspection system using thermography and laser ultrasonic in 3D printing process and 3D printing system having the same

3D 3D Integrated inspection system using thermography and laser ultrasonic in 3D printing process and 3D printing system having the same

Provided are a thermal imaging and laser ultrasonic-integrated inspecting system of a 3D printing process and a 3D printing system having the same. According to an embodiment of the present invention, the thermal imaging and laser ultrasonic-integrated inspecting system of a 3D printing process comp...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: JEON IK GEUN, LIU PEIPEI, SOHN HOON
Format: Patent
Sprache:eng ; kor
Schlagworte:
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
MAKING METALLIC POWDER
MANUFACTURE OF ARTICLES FROM METALLIC POWDER
PERFORMING OPERATIONS
POWDER METALLURGY
TRANSPORTING
WORKING METALLIC POWDER
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Beschreibung
Zusammenfassung:Provided are a thermal imaging and laser ultrasonic-integrated inspecting system of a 3D printing process and a 3D printing system having the same. According to an embodiment of the present invention, the thermal imaging and laser ultrasonic-integrated inspecting system of a 3D printing process comprises: an infrared camera for obtaining a thermal image of a molten pool formed in a stacking unit by melting a base material supplied to the stacking unit by a laser beam irradiated from a laser source for 3D printing; a laser ultrasonic device for receiving laser-generated ultrasonic waves reflected from the stacking unit; and a control unit for estimating physical properties of the stacking unit and detecting a defect on the basis of responses of the obtained thermal image and the received laser ultrasonic waves. The infrared camera and the laser ultrasonic device are coaxially disposed with the laser source for 3D printing. According to the present invention, defects or physical properties of a product can be inspected in real time during a 3D printing process. 3D 프린팅 공정의 열 화상 및 레이저 초음파 통합 검사 시스템 및 이를 구비한 3D 프린팅 시스템이 제공된다. 본 발명의 실시예에 따른 3D 프린팅 공정의 열 화상 및 레이저 초음파 통합 검사 시스템은 3D 프린팅용 레이저 소스로부터 조사된 레이저 빔에 의해 적층부에 공급되는 모재를 녹임으로써 적층부에 형성되는 용융풀의 열 화상을 획득하는 적외선 카메라, 적층부로부터 반사되는 레이저 초음파를 수광하는 레이저 초음파 장치, 및 획득된 열 화상 및 수광된 레이저 초음파의 응답을 기초로 적층부의 물성치 추정 및 결함 검출을 수행하는 제어부를 포함한다. 여기서, 적외선 카메라 및 레이저 초음파 장치는 3D 프린팅용 레이저 소스와 동축 상으로 배치된다.