PL422344A1 - Device for additive production with optimized shielding gas flow - Google Patents

Device for additive production with optimized shielding gas flow

Info

Publication number
PL422344A1
PL422344A1 PL422344A PL42234417A PL422344A1 PL 422344 A1 PL422344 A1 PL 422344A1 PL 422344 A PL422344 A PL 422344A PL 42234417 A PL42234417 A PL 42234417A PL 422344 A1 PL422344 A1 PL 422344A1
Authority
PL
Poland
Prior art keywords
shielding gas
gas inlet
construction plate
process chamber
intended
Prior art date
Application number
PL422344A
Other languages
Polish (pl)
Other versions
PL232979B1 (en
Inventor
Katrin Friedberger
Alexander Ladewig
Joachim Bamberg
Original Assignee
MTU Aero Engines AG
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 MTU Aero Engines AG filed Critical MTU Aero Engines AG
Publication of PL422344A1 publication Critical patent/PL422344A1/en
Publication of PL232979B1 publication Critical patent/PL232979B1/en

Links

Classifications

    • 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
    • B29C64/364—Conditioning of environment
    • B29C64/371—Conditioning of environment using an environment other than air, e.g. inert gas
    • 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
    • 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
    • B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
    • B29C64/25—Housings, e.g. machine housings
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Powder Metallurgy (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Abstract

Wynalazek dotyczy urządzenia (10) do wytwarzania addytywnego części, zwłaszcza do selektywnego stapiania laserowego, z komorą procesową (12), która jest otoczona obudową (14), umieszczoną w komorze procesowej (12), a zwłaszcza opuszczaną płytą konstrukcyjną (22), przy czym na płycie konstrukcyjnej (22) warstwowo formuje się wytwarzany przedmiot poprzez laserowe naświetlanie złoża proszkowego, co najmniej jednym pierwszym wlotem (24) gazu osłonowego, przez który gaz osłonowy wpływa laminarnie do komory procesowej (12), korzystnie zasadniczo równolegle do płyty konstrukcyjnej (22), co najmniej jednym drugim wlotem (26) gazu osłonowego, który jest umieszczony powyżej pierwszego wlotu (24) gazu osłonowego i jest przeznaczony do wytwarzania drugiego strumienia gazu osłonowego, aby utrzymać laminarny przepływ gazu osłonowego z pierwszego wlotu (24) gazu osłonowego w kierunku płyty konstrukcyjnej (22), co najmniej jednym urządzeniem odsysającym (28), które jest przeznaczone do odsysania wprowadzonego gazu osłonowego, przy czym wloty (24, 26) gazu osłonowego i urządzenie odsysające (28) są umieszczone w odniesieniu do płyty konstrukcyjnej (22) na przeciwległych stronach. Pierwszy wlot (24) gazu osłonowego lub/i drugi wlot (26) gazu osłonowego są przeznaczone do wytwarzania profilu przepływu, w którym w odniesieniu do kierunku poprzecznego względem głównego kierunku poprzecznego w bocznych, a zwłaszcza zewnętrznych obszarach płyty konstrukcyjnej wytwarzana jest większa prędkość przepływu niż w obszarze centralnym płyty konstrukcyjnej, aby utworzyć boczny strumień prowadzący.The invention relates to a device (10) for the production of additive parts, especially for selective laser melting, with a process chamber (12) which is surrounded by a housing (14) located in the process chamber (12), and in particular a lowered construction plate (22), with what is formed on the construction plate (22) by the laser irradiation of the powder bed with at least one first shielding gas inlet (24) through which the shielding gas flows laminar into the process chamber (12), preferably substantially parallel to the construction plate (22) ), at least one second shielding gas inlet (26) which is located above the first shielding gas inlet (24) and is intended to produce a second shielding gas stream to maintain laminar shielding gas flow from the first shielding gas inlet (24) towards a construction plate (22), with at least one suction device (28), which e is intended to suck off the introduced shielding gas, wherein the shielding gas inlets (24, 26) and the suction device (28) are located relative to the construction plate (22) on opposite sides. The first shielding gas inlet (24) or / and the second shielding gas inlet (26) are intended for producing a flow profile in which, with respect to the transverse direction relative to the main transverse direction, a greater flow velocity is generated in the lateral and especially outer regions of the construction plate in the central area of the building plate to create a lateral guide stream.

PL422344A 2016-07-26 2017-07-25 Device for additive production with optimized shielding gas flow PL232979B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016213628.3A DE102016213628A1 (en) 2016-07-26 2016-07-26 Device for additive manufacturing with optimized protective gas flow
DEDE102016213628.3 2016-07-26

Publications (2)

Publication Number Publication Date
PL422344A1 true PL422344A1 (en) 2018-06-18
PL232979B1 PL232979B1 (en) 2019-08-30

Family

ID=60951412

Family Applications (2)

Application Number Title Priority Date Filing Date
PL422344A PL232979B1 (en) 2016-07-26 2017-07-25 Device for additive production with optimized shielding gas flow
PL427552A PL233004B1 (en) 2016-07-26 2017-07-25 Method for additive production of parts and method for additive production of parts

Family Applications After (1)

Application Number Title Priority Date Filing Date
PL427552A PL233004B1 (en) 2016-07-26 2017-07-25 Method for additive production of parts and method for additive production of parts

Country Status (2)

Country Link
DE (1) DE102016213628A1 (en)
PL (2) PL232979B1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10478893B1 (en) * 2017-01-13 2019-11-19 General Electric Company Additive manufacturing using a selective recoater
US20190322050A1 (en) * 2018-04-19 2019-10-24 General Electric Company Additive manufacturing system and method
DE102018215301A1 (en) * 2018-09-07 2020-03-12 Eos Gmbh Electro Optical Systems Device and method for additively producing a three-dimensional object
US11633917B2 (en) * 2019-11-25 2023-04-25 Robert Bosch Gmbh Laser additive manufacturing control system and method
US11938539B2 (en) 2021-04-16 2024-03-26 General Electric Company Additive manufacturing build units with process gas inertization systems
US11759861B2 (en) 2021-04-16 2023-09-19 General Electric Company Additive manufacturing build units with process gas inertization systems

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004031881B4 (en) * 2004-06-30 2007-11-22 Cl Schutzrechtsverwaltungs Gmbh Device for extracting gases, vapors and / or particles from the working area of a laser processing machine
DE102014209161A1 (en) * 2014-05-14 2015-11-19 Eos Gmbh Electro Optical Systems Control unit, apparatus and method for producing a three-dimensional object
DE102014212100A1 (en) * 2014-06-24 2015-12-24 MTU Aero Engines AG Generative production process and device for this purpose with oppositely directed inert gas streams

Also Published As

Publication number Publication date
PL232979B1 (en) 2019-08-30
PL427552A1 (en) 2019-02-25
DE102016213628A1 (en) 2018-02-01
PL233004B1 (en) 2019-08-30

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