EP3986646A1 - System und verfahren zur kontrollierten herstellung - Google Patents

System und verfahren zur kontrollierten herstellung

Info

Publication number
EP3986646A1
EP3986646A1 EP20739748.0A EP20739748A EP3986646A1 EP 3986646 A1 EP3986646 A1 EP 3986646A1 EP 20739748 A EP20739748 A EP 20739748A EP 3986646 A1 EP3986646 A1 EP 3986646A1
Authority
EP
European Patent Office
Prior art keywords
control
manufacturing
parameters
effector
controlled
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.)
Pending
Application number
EP20739748.0A
Other languages
English (en)
French (fr)
Inventor
Jean-Daniel PENOT
Jérôme LAURENT
Célia MILLON
Philippe VERLET
Jonathan FRECHARD
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
VLM Sarl
AddUp SAS
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
VLM Sarl
Commissariat a lEnergie Atomique CEA
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by VLM Sarl, Commissariat a lEnergie Atomique CEA, Commissariat a lEnergie Atomique et aux Energies Alternatives CEA filed Critical VLM Sarl
Publication of EP3986646A1 publication Critical patent/EP3986646A1/de
Pending legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • B22F12/40—Radiation means
    • B22F12/41—Radiation means characterised by the type, e.g. laser or electron beam
    • 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
    • B29C64/30—Auxiliary operations or equipment
    • B29C64/386—Data acquisition or data processing for additive manufacturing
    • B29C64/393—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
    • 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
    • B22F10/22—Direct deposition of molten metal
    • 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
    • B22F10/25—Direct deposition of metal particles, e.g. direct metal deposition [DMD] or laser engineered net shaping [LENS]
    • 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]
    • 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
    • B22F10/38—Process control to achieve specific product aspects, e.g. surface smoothness, density, porosity or hollow structures
    • 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
    • B22F10/80—Data acquisition or data processing
    • B22F10/85—Data acquisition or data processing for controlling or regulating additive manufacturing processes
    • 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
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • B23K26/03—Observing, e.g. monitoring, the workpiece
    • B23K26/034—Observing the temperature of the workpiece
    • 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
    • B29C64/141—Processes of additive manufacturing using only solid materials
    • B29C64/153—Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y10/00—Processes of additive manufacturing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y50/00—Data acquisition or data processing for additive manufacturing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y50/00—Data acquisition or data processing for additive manufacturing
    • B33Y50/02—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/04—Analysing solids
    • G01N29/06—Visualisation of the interior, e.g. acoustic microscopy
    • G01N29/0654—Imaging
    • G01N29/069—Defect imaging, localisation and sizing using, e.g. time of flight diffraction [TOFD], synthetic aperture focusing technique [SAFT], Amplituden-Laufzeit-Ortskurven [ALOK] technique
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/22—Details, e.g. general constructional or apparatus details
    • G01N29/225—Supports, positioning or alignment in moving situation
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/22—Details, e.g. general constructional or apparatus details
    • G01N29/24—Probes
    • G01N29/2418—Probes using optoacoustic interaction with the material, e.g. laser radiation, photoacoustics
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/22—Details, e.g. general constructional or apparatus details
    • G01N29/26—Arrangements for orientation or scanning by relative movement of the head and the sensor
    • G01N29/265—Arrangements for orientation or scanning by relative movement of the head and the sensor by moving the sensor relative to a stationary material
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/22—Details, e.g. general constructional or apparatus details
    • G01N29/32—Arrangements for suppressing undesired influences, e.g. temperature or pressure variations, compensating for signal noise
    • G01N29/326—Arrangements for suppressing undesired influences, e.g. temperature or pressure variations, compensating for signal noise compensating for temperature variations
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
    • G05B19/4097—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by using design data to control NC machines, e.g. CAD/CAM
    • G05B19/4099—Surface or curve machining, making 3D objects, e.g. desktop manufacturing
    • 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
    • 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
    • B22F12/40—Radiation means
    • B22F12/44—Radiation means characterised by the configuration of the radiation means
    • B22F12/45—Two or more
    • 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
    • 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
    • B22F12/90—Means for process control, e.g. cameras or sensors
    • 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
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/34—Laser welding for purposes other than joining
    • B23K26/342—Build-up welding
    • 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
    • B23K9/00—Arc welding or cutting
    • B23K9/04—Welding for other purposes than joining, e.g. built-up welding
    • B23K9/044—Built-up welding on three-dimensional surfaces
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

Definitions

  • Non-destructive testing methods include, in particular, radiography, tomography, conventional ultrasound, eddy currents, thermography, shearography.
  • Destructive testing processes include in particular mechanical tests and are carried out on finished parts. These methods therefore do not allow the detection of defect during the manufacture of parts. Furthermore, these methods do not make it possible to set up a feedback loop to stop production or modify certain parameters as soon as a fault is detected. Finally, these destructive testing methods are not effective when the parts concerned have a complex final geometry.
  • DCN digital control director
  • a Multichannel DCN has several outputs, commonly used to drive two independent actions.
  • Numerically controlled machine tools provide a typical example.
  • systems using a multi-channel CNC manager have used this approach to operate two steps.
  • a typical use of the multi-channel CNC director is for twin-turret lathes where two tools machine a rotating part. Each tool has its machining program and there is no communication between the two tools. There are only program pauses for one tool while waiting for the other tool to perform an operation.
  • the object of the present invention relates to a controlled manufacturing system suitable for controlling a manufacturing process, repairing or reloading a part by depositing material under concentrated energy, said controlled manufacturing system comprising: obtaining a three-dimensional digital model of the part; means for generating a manufacturing file of the part, based on the three-dimensional digital model of said part, to define manufacturing parameters of an additive manufacturing machine, said manufacturing parameters being associated with manufacturing instructions;
  • analysis means for performing an analysis of the manufacturing file and of the control file in order to determine whether the manufacturing parameters and the control parameters can coexist during the simultaneous application of the manufacturing parameters to the additive manufacturing machine and control parameters at the control effector; a control module comprising at least one communication channel for receiving and transmitting the manufacturing instructions to a polyarticulated manufacturing system adapted to support the additive manufacturing machine, and at least one communication channel for receiving and transmitting the control instructions to a polyarticulated control system adapted to support the control effector, to simultaneously control the additive manufacturing machine and the control effector.
  • control effector comprises an initial generation laser beam shaping device to produce a generation laser beam and an initial detection laser beam shaping device to produce a detection laser beam.
  • the invention relates to a controlled manufacturing process suitable for a manufacturing, repair or resurfacing process. of a part, by depositing material under concentrated energy, comprising the following steps: generation of a three-dimensional digital model of the part to be manufactured, repaired or recharged, in order to model said part;
  • the controlled manufacturing process comprises the following step: if the manufacturing parameters and the control parameters cannot coexist:
  • defect detection leads to stopping production.
  • FIG. 5 shows an operating diagram of a controlled manufacturing process according to the invention
  • FIG. 9 shows the system according to the invention in a top view to illustrate the fourth step of a controlled manufacturing process of a part to be manufactured, repaired or recharged.
  • the control system 102 comprises a detection laser 120, preferably of the long-pulse or continuous laser type.
  • the initial detection laser beam 122 is shaped by the optical shaper 124 to form a shaped detection laser beam 136.
  • the reflection of this detection laser beam 136 on the wall of the room 140 is measured by the interferometer 126.
  • the generation laser beam 134 is inclined at an angle A of 80 degrees (°) to 0 ° with respect to the normal 144 of the surface of the part at the point of generation, and more preferably from 50 ° to 0 °, and even more preferably 0 °, that is to say normal to the surface of the part 140 at the point of impact.
  • the controlled manufacturing system 100 also includes means for obtaining 104 a three-dimensional digital model of the part 140.
  • the controlled manufacturing system 100 includes computer-aided design (CAD) or computer-aided design software. (CAD) making it possible to generate a file, for example an STP file relating to a three-dimensional digital model of the part 1 1 to be manufactured, repaired or recharged.
  • This file defines the geometry of the part, that is to say the entire volume of the part or simply its surfaces.
  • This file may also be from other software.
  • This file is intended for transmission to CAM software 108 and control design software 110 described below.
  • the definition or generation of the manufacturing file and the control file can be performed separately, that is to say on different digital tools. However, these manufacturing and inspection files must be produced together.
  • a digital system known as the digital twin of the system can make it possible to ensure the feasibility of the calculated movements, in particular by avoiding any collision and by ensuring efficient management of the checkpoints.
  • the multichannel digital control director 112 simultaneously controls the polyarticulated control system 132 and the polyarticulated manufacturing system 138 based on the manufacturing instructions and the control instructions.
  • Ultrasound generation can only be produced on the faces of the part accessible to the generation laser.
  • Ultrasound detection can only be performed on the faces of the part accessible to the detection laser. Between the two laser impact points, the ultrasonic propagation makes it possible to probe the volume and the surface of the control zone located between the two lasers.
  • the diagnosis of the presence of a fault is confirmed.
  • An automatic or manual control (by the user) then stops the manufacture of the part. This action limits losses due to remaining machine time and the amount of raw material needed to produce the rest of the non-conforming part.
  • the control system and method according to the invention solves the problem of timing control of a large number of axes such as five axes for the manufacturing polyarticulate system and seven axes for the control polyarticulate system.
  • controlling such a number of axes is extremely expensive in terms of computing power, if not impossible.
  • all axis movements must be programmed into a single program which makes writing this very complex.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Biochemistry (AREA)
  • Pathology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Immunology (AREA)
  • Optics & Photonics (AREA)
  • Automation & Control Theory (AREA)
  • Plasma & Fusion (AREA)
  • Toxicology (AREA)
  • Mechanical Engineering (AREA)
  • Acoustics & Sound (AREA)
  • Human Computer Interaction (AREA)
  • Powder Metallurgy (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Laser Beam Processing (AREA)
EP20739748.0A 2019-06-20 2020-05-25 System und verfahren zur kontrollierten herstellung Pending EP3986646A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1906669A FR3097463B1 (fr) 2019-06-20 2019-06-20 Systeme et procede de fabrication controlee
PCT/FR2020/050864 WO2020254738A1 (fr) 2019-06-20 2020-05-25 Systeme et procede de fabrication controlee

Publications (1)

Publication Number Publication Date
EP3986646A1 true EP3986646A1 (de) 2022-04-27

Family

ID=68072745

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20739748.0A Pending EP3986646A1 (de) 2019-06-20 2020-05-25 System und verfahren zur kontrollierten herstellung

Country Status (7)

Country Link
US (1) US20220347754A1 (de)
EP (1) EP3986646A1 (de)
JP (1) JP2022537449A (de)
KR (1) KR20220031900A (de)
CN (1) CN114258344A (de)
FR (1) FR3097463B1 (de)
WO (1) WO2020254738A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113588566B (zh) * 2021-08-23 2022-06-21 南京大学 基于激光超声的激光点焊微焊点质量检测装置及方法
CN118385614B (zh) * 2024-07-01 2024-10-18 创材深造(苏州)科技有限公司上海分公司 多模态粉末的部件增材制造方法、装置、设备及存储介质

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10352911B2 (en) * 2008-09-12 2019-07-16 Balthasar Fischer Airborne ultrasound testing system for a test object
ES2983485T3 (es) * 2015-11-16 2024-10-23 Renishaw Plc Método y aparato de fabricación aditiva
WO2018045123A1 (en) * 2016-09-01 2018-03-08 3D Systems, Inc. Improved additive manufacturing of a three-dimensional object
CN108333219A (zh) * 2018-03-19 2018-07-27 长沙理工大学 一种用于大型金属构件激光增材制造过程的在线无损检测方法
CN109387568A (zh) * 2018-12-21 2019-02-26 西安增材制造国家研究院有限公司 一种激光超声检测装置及增材制造、检测一体设备

Also Published As

Publication number Publication date
WO2020254738A1 (fr) 2020-12-24
CN114258344A (zh) 2022-03-29
FR3097463A1 (fr) 2020-12-25
KR20220031900A (ko) 2022-03-14
US20220347754A1 (en) 2022-11-03
JP2022537449A (ja) 2022-08-25
FR3097463B1 (fr) 2022-09-23

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