KR20200083312A - 적층 제조 중 부품의 변형과 정밀도의 병행 제어 방법 - Google Patents
적층 제조 중 부품의 변형과 정밀도의 병행 제어 방법 Download PDFInfo
- Publication number
- KR20200083312A KR20200083312A KR1020190176078A KR20190176078A KR20200083312A KR 20200083312 A KR20200083312 A KR 20200083312A KR 1020190176078 A KR1020190176078 A KR 1020190176078A KR 20190176078 A KR20190176078 A KR 20190176078A KR 20200083312 A KR20200083312 A KR 20200083312A
- Authority
- KR
- South Korea
- Prior art keywords
- molding
- precision
- deformation
- fusion
- additive manufacturing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/30—Process control
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- B22F3/1055—
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/20—Direct sintering or melting
- B22F10/28—Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/20—Direct sintering or melting
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
- B22F12/80—Plants, production lines or modules
- B22F12/82—Combination of additive manufacturing apparatus or devices with other processing apparatus or devices
- B22F12/84—Parallel processing within single device
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/12—Both compacting and sintering
- B22F3/16—Both compacting and sintering in successive or repeated steps
- B22F3/162—Machining, working after consolidation
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- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/12—Both compacting and sintering
- B22F3/16—Both compacting and sintering in successive or repeated steps
- B22F3/164—Partial deformation or calibration
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- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/24—After-treatment of workpieces or articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
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- B23K10/02—Plasma welding
- B23K10/027—Welding for purposes other than joining, e.g. build-up welding
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
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- B23K15/0093—Welding characterised by the properties of the materials to be welded
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
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- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
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- B23K9/04—Welding for other purposes than joining, e.g. built-up welding
- B23K9/044—Built-up welding on three-dimensional surfaces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
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- B23K9/23—Arc welding or cutting taking account of the properties of the materials to be welded
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/10—Processes of additive manufacturing
- B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B—PERFORMING OPERATIONS; TRANSPORTING
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Abstract
Description
| 성능방법 | 인장강도 σb /MPa |
연신율 δ/(%) |
수축율 ø/(%) |
충격 인성/(J.mm-²) | 경도/(HBS) | |
| 캐스트 | 항공엔진 표준 | 540 | 12 | 20 | 29.4 | 152-170 |
| 단조재 | 국제표준 GB 5024-77 |
835 | 10 | 40 | 36.9 | 229-285 |
| 당해 기술 | 종방향 | 963 | 18 | 60 | 47.5 | 301-308 |
| 접선 방향 | 982 | 12 | 43 | 43.5 | 307-324 | |
| 비교 항목 | 블랭크 질량 | 재료 이용률 | 제조 주기 |
| 재래식 제조 | 800kg | 10% | 3-6월 |
| 마이크로 캐스팅-단조-밀링 | 120kg | 68% | 3-6주 |
| 재래식 제조 공정 | 캐스팅(kj) | 단조(kj) | 밀링(kj) | 계(kj) |
| 9.37×106 | 8.64×107 | 3.2×105 | 9.6×107 | |
| 마이크로 캐스팅-단조-밀링 공정 | 마이크로 캐스팅 | 마이크로 단조 | 밀링 | 계 |
| 1.06×106 | 4.5×105 | 2.3×104 | 1.5×106 |
Claims (13)
- 적층 제조 중 부품의 변형과 정밀도의 병행 제어 방법에 있어서,
부품의 적층 제조 과정에서, 적층 성형 공정과 동등 재료의 쉐이핑 또는 소성 성형 공정을 동일 스테이션에서 병행 실시함과 함께, 동등 재료의 정형 공정, 절삭 가공 공정과 마감 가공 공정 중 어느 하나 또는 다수를 동일 스테이션에서 병행 실시하여, 원 스톱형 초단 프로세스의 고정밀도 및 고성능 적층 제조를 구현하며, 상기 동일 스테이션에서 병행 실시한다고 함은, 가공되는 부품의 클램프 위치를 변경하지 않으면서 서로 다른 가공층, 또는 동일 가공층의 동일 패스(pass) 또는 서로 다른 패스에서 서로 다른 공정을 수행함을 가리키는,
적층 제조 중 부품의 변형과 정밀도의 병행 제어 방법. - 제1항에 있어서,
변형을 제어하고 성능을 개선하기 위한 서보 압연 제어 및 냉각 제어 열처리 공정을 더 포함하며,
상기 적층 성형 과정에서는 동등 재료의 열 쉐이핑 과정 중의 온도, 변형 정도, 변형 속도, 냉각 조건의 공정 파라미터를 제어하거나, 또는 전자기 또는 초음파 진동을 보조적으로 이용하여 성형체의 결정 형태와 조직의 역학적 성능을 개선하고, 잔류 스트레스와 변형을 저감시켜 성형 정밀도를 향상시키는, 적층 제조 중 부품의 변형과 정밀도의 병행 제어 방법. - 제2항에 있어서,
상기 절삭 가공 공정 또는 마감 가공 공정은 구체적으로 레이저, 전기가공 또는 초음파 방식을 이용하여 동기적 및 서보 방식으로 밀링 가공을 진행하는 것이며, 정밀도가 요구에 부합하지 않으면 부품의 정밀도 요구에 부합할 때까지 기계적 밀링 또는 그라인딩 마무리를 이용하는, 적층 제조 중 부품의 변형과 정밀도의 병행 제어 방법. - 제3항에 있어서,
성형 과정의 각 패스에서 또는 서로 다른 층 또는 동일 층의 서로 다른 패스의 적층 성형 공정 간격에서, 서보 클리닝 방식으로 적층 성형 과정의 융합 성형 존 표면의 산화물, 이물질과 하자에 대해 서보 클리닝을 진행하여, 표면 품질이 양호하고 다음 패스의 고품질 융합 성형에 유리한 베이스 표면 또는 부품 표면을 얻는, 적층 제조 중 부품의 변형과 정밀도의 병행 제어 방법. - 제4항에 있어서,
상기 적층 성형 공정, 동등 재료의 쉐이핑 공정 또는 동등 재료의 정형 공정 이후에 배치되어 분단 병행되는 열처리를 더 포함하거나, 또는 전체 성형 가공이 종료된 후 성형 가공 유닛 내에서 성형 부재 또는 부품을 열처리하여 그 잔류 스트레스를 제거하여 변형과 균열을 저감시킴으로써 역학적 성능을 향상시키는, 적층 제조 중 부품의 변형과 정밀도의 병행 제어 방법. - 제5항에 있어서,
하자 검출 공정을 더 포함하며,
구체적으로 부품의 적층 제조 과정에서 제조 장비 자체의 CNC 시스템과 탑재된 리버스 장치 및 하자 검출 장치를 이용하여 성형체의 형태와 사이즈를 병행 리버싱하며, 형태가 복잡하여 성형 후 하자 검사가 어려운 사각지대에 대해서는 내부와 외부의 하자 검출을 진행하며; 만약 하자가 있다면 절삭 시스템을 이용하여 하자를 제거한 후 계속 성형하거나, 또는 성형이 완료된 후 당해 장비 내의 동일 스테이션에서 부품의 하자 검출을 수행하는, 적층 제조 중 부품의 변형과 정밀도의 병행 제어 방법. - 제1항에 있어서,
서로 다른 성형 가공층 또는 동일 성형 가공층의 동일 패스 또는 서로 다른 패스 중의 서로 다른 위치에서 서로 다른 공정을 실시하는, 적층 제조 중 부품의 변형과 정밀도의 병행 제어 방법. - 제2항에 있어서,
동등 재료의 기존 위치 열 소성 성형 과정 중의 온도, 변형 정도, 변형 속도, 냉각 조건의 공정 파라미터를 제어하거나, 또는 전자기 또는 초음파 진동 방식을 보조적으로 이용하며;
비소모성 전극 가스 보호 용접의 플라즈마 융합 건을 적층 성형용 열원으로 이용하고, 미니 압연 롤러는 플라즈마 융합 건을 따라 동기화 동작을 진행하며, 동등 재료 소성 성형용 미니 압연 롤러는 기존 위치에서 용융 풀 직후의 방금 응고된 존의 표면에 작용하며; 가스 보호 플라즈마 융합 건의 융합 전류는 180A이며, 융합 제조되는 단조용 금형 캐비티의 사용 성능 요구에 따라, 당해 금형의 스틸 용접 와이어를 이용하여, 금형의 3차원 CAD 모델로부터 얻은 디지털 성형 가공 경로에 따라 기판 상에 마이크로 캐스팅 융합 적층 성형과 마이크로 단조 동등 재료 소성 성형 가공을 한 층씩 동기적으로 진행하며; 서보 압연 제어 및 냉각 제어 열처리 공정을 이용하여, 적층 성형 과정의 동등 재료 열 소성 성형 과정에서 공기 냉각을 기체 냉각 또는 액체질소 냉각으로 변경하거나; 또는 성형 과정에서 용융 풀에 전자기 보조 성형을 실시하며; 만약 금형 캐비티 형태가 복잡하면, 가공하고자 하는 성형체 표면에 대해, 동기화 성형 과정에서 비접촉형 레이저 밀링 가공을 진행하며, 만약 이 구간에서 시간이 짧고 사이즈와 표면 정밀도가 여전히 요구에 부합하지 않으면, 기계적 마무리 가공을 한 층씩 진행하거나 또는 다수 층을 분단하여 복합적으로 진행할 수 있으며; 마무리 가공 과정과 동기화 성형 가공 과정은 금형 캐비티 성형 가공이 종료될 때까지 동기적으로 진행하는, 적층 제조 중 부품의 변형과 정밀도의 병행 제어 방법. - 제3항에 있어서,
정밀도가 요구에 부합하지 않으면, 부품의 정밀도 요구에 부합할 때까지 계속하여 상기 방식을 취하거나 또는 기계적 밀링 또는 그라인딩 마무리를 이용하는, 적층 제조 중 부품의 변형과 정밀도의 병행 제어 방법. - 제4항에 있어서,
가스 보호 레이저 건을 적층 융합 성형용 열원으로 이용하며, 미니 압연 롤러는 가스 보호 레이저 융합 건과 동기적으로 동작하며, 동등 재료 소성 성형을 위한 충격 성형 레이저는 용융 풀 이후의 응고 존 표면에 작용하며; 가스 보호 레이저 융합 성형 건의 출력은 2000W이며, 적층 제조되는 비행기 엔진 케이스의 사용 성능 요구에 따라, 고온 합금 용접 와이어를 이용하여 기판 상에, 부품의 3차원 CAD 모델로부터 얻은 디지털 성형 가공 경로에 따라 융합 성형과 마이크로 소성 성형 가공을 한 층씩 동기적으로 진행하며; 케이스 사이즈가 큰 관계로 융합 성형 변형이 크면, 동기화 성형 가공 이후에 동등 재료 정형 가공을 진행하되, 상기 정형 가공은 레이저 충격 성형 가공 직후에 부품의 성형 가공이 종료될 때까지 진행하여 변형 정형을 최소화하거나; 또는, 기존 성형 존에 대해 성형 과정에서 초음파 진동을 가하여 보조적 성형을 진행하여 조직 성능을 향상시키고 잔류 스트레스를 저감시키며; 부품의 형태가 복잡하면, 전체 성형 이후 가공하기 어려운 부분에 대해, 상기 동기화 성형 가공 과정에서 비접촉형 레이저 밀링 가공, 또는 간헐적 접촉형 초음파 기계 가공, 또는 이들 가공 방식을 복합하여 다수 층에 대해 분단하여 복합 진행하거나 또는 기계적 마무리 가공을 진행하며; 상기 마무리 가공 과정과 동기화 성형 가공 과정은 부품의 성형 가공이 종료될 때까지 동기적으로 진행되는, 적층 제조 중 부품의 변형과 정밀도의 병행 제어 방법. - 제5항에 있어서,
비소모형 전극 가스 보호 건의 전기 아크 또는 플라즈마 아크와 레이저가 혼합된 열원을 적층 성형용 열원으로 이용하며, 미니 압연 롤러는 복합 열원 발생 장치와 동기적으로 동작하며, 동등 재료 성형용 미니 압연 롤러는 용융 풀 직후의 방금 응고된 존의 표면에 작용하며; 가스 보호 전기 아크 또는 플라즈마 아크 융합 건의 융합 전류는 200A이고, 레이저 출력은 2000w이며, 적층 제조되는 비행기의 프레임 빔의 사용 성능 요구에 따라, 티타늄 합금 용접 와이어를 이용하여 기판 상에, 부품의 3차원 CAD 모델로부터 얻은 디지털 성형 가공 경로에 따라 융합 성형과 마이크로 소성 성형 가공을 한 층씩 동기적으로 진행하며; 비행기의 프레임 빔의 사이즈가 큰 관계로 융합 성형 변형이 크면, 동기화 성형 가공 이후에 동등 재료 정형 가공을 진행하되, 상기 정형 가공은 마이크로 소성 가공 직후에 부품의 성형 가공이 종료될 때까지 진행하여 변형 정형을 최소화하며; 다만, 항공 부품 성능 요구가 높아 각 층 표면의 산화물과 이물질이 하부 성형체에 유입되어서는 안되므로, 고효율적인 서보 클리닝 방식을 이용하여 적층 성형 과정 중 융합 성형 존 표면의 산화물, 이물질 및 하자에 대해 서보 클리닝을 진행하여, 표면 품질이 양호하고 다음 패스의 고품질 융합 성형에 유리한 베이스 표면 또는 부품 표면을 얻으며; 상기 표면 클리닝과 성형 가공 과정은 부품의 성형 가공이 종료될 때까지 동기적으로 진행되며;
2000w 출력의 고체 레이저 장치를 이용하고, 성형 재료는 고온 합금의 금속 와이어를 이용하며, 레이저 헤드에 고정된 미니 압연 롤러는 레이저 헤드와 동기적으로 동작하며, 사이드 롤러는 용융 연화 존의 측면을 추종하며, 천공형의 수평 롤러는 용융 풀 후방 근처의 방금 응고된 연화 존을 유연하게 추종하면서 기판 상에, 석유 파이프의 3차원 CAD 모델로부터 얻은 디지털 성형 가공 경로에 따라 레이저 융합 성형과 마이크로 강제 성형을 한 층씩 동기적으로 진행하여 고온 합금 부품을 가공하며; 전체 성형 가공이 종료된 후, 성형 가공 유닛 내에 설치된 열처리 장치를 이용하여 성형 부재 또는 부품을 열처리하여 이들의 잔류 스트레스를 제거하여 변형과 균열을 저감시켜 역학적 성능을 향상시키는, 적층 제조 중 부품의 변형과 정밀도의 병행 제어 방법. - 제6항에 있어서,
부품의 적층 제조 과정에서, 장비 자체의 CNC 시스템 또는 로봇 시스템, 및 탑재된 리버스 장치와 하자 검출 장치는, 성형체의 형태와 사이즈를 병행 리버싱하며, 형태가 복잡하여 성형 후 하자 검사가 어려운 사각지대에 대해서는 내부와 외부의 하자 검출을 진행하는, 적층 제조 중 부품의 변형과 정밀도의 병행 제어 방법. - 제6항에 있어서,
경사기능재료의 파우더 피더, 이동 아크 전류가 170A인 플라즈마 융합 건을 이용하며, 미니 압연 롤러는 산업용 로봇 아암에 고정되며, 산업용 로봇 아암과 융합 성형 제조에서 사용되는 CNC 플라즈마 융합 건은 동기화를 유지하며, 사이드 롤러는 용융 연화 존의 측면을 추종하며, 천공형 수평 롤러는 용융 풀 후방 근처의 반 응고 연화 존을 유연하게 추종하며; 니켈-알루미늄 금속 간 화합물 분말과 니켈 베이스 고온 합금 분말 또는 와이어에 대해, 경사기능재료의 성분 분포 정보가 들어 있는 3차원 CAD 모델로부터 얻은 디지털 융합 성형 경로에 따라 플라즈마 융합 성형과 마이크로 압출 성형을 한 층씩 동기적으로 진행하여 상기 경사기능재료 부품을 가공하며; 상기 재료에 쉽게 크랙이 발생하므로, 부품의 적층 제조 과정에서는 탑재된 리버스 장치와 하자 검출 장치를 이용하여 성형체의 형태와 사이즈를 병행 리버싱한 후 검출하며, 만약 하자가 있다면 절삭 시스템을 이용하여 하자를 제거한 후 계속 성형하며; 또는, 형태가 복잡하여 성형 후 하자 검사가 어려운 사각지대에 대해서는 하자 검출을 진행하며; 만약 하자가 있다면 절삭 시스템을 이용하여 하자를 제거한 후 계속 성형하거나, 또는 성형을 완료한 후 당해 장비 내의 동일 스테이션에서 동일한 리버싱-검출 방법을 이용하여 부품의 하자 검출을 수행하는, 적층 제조 중 부품의 변형과 정밀도의 병행 제어 방법.
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2018
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102642687B1 (ko) * | 2023-11-20 | 2024-03-04 | 고려공업검사 주식회사 | 적층과 가공이 동시에 수행되는 챔버형 와이어 아크(wa)-3d프린터 장치 및 이를 이용한 3d프린팅 방법 |
| KR102711100B1 (ko) * | 2023-11-27 | 2024-09-27 | 고려공업검사 주식회사 | 적층과 가공이 동시에 수행되는 3d프린터 장치 및 이를 이용한 3d프린팅 방법 |
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| RU2745219C1 (ru) | 2021-03-22 |
| CN110788324A (zh) | 2020-02-14 |
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