JP6764401B2 - 3次元印刷物の熱処理中の空洞の変形を抑制する方法 - Google Patents
3次元印刷物の熱処理中の空洞の変形を抑制する方法 Download PDFInfo
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- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
- B22F5/10—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of articles with cavities or holes, not otherwise provided for in the preceding subgroups
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
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- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
- B22F5/10—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of articles with cavities or holes, not otherwise provided for in the preceding subgroups
- B22F5/106—Tube or ring forms
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- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
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- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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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
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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
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- B22F10/10—Formation of a green body
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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
- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
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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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- 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
Description
Claims (14)
- a)外面と、当該外面から内側に延びる空洞とを有し、当該空洞と当該外面の交差部において開口部が画定されている第1のアイテムを、造形材料から3次元印刷結合剤噴射プロセスによって印刷するステップと、
b)外面を有し、当該第1のアイテムの空洞の中に接触状態で挿入できるように適合された第2のアイテムを、当該造形材料から3次元印刷結合剤噴射プロセスによって印刷するステップと、
c)後のステップ(e)の際に当該第2のアイテムが当該第1のアイテムに接合するのを防ぐように、当該空洞表面の少なくとも一部および当該第2のアイテムの外面の少なくとも一部の少なくとも一方に処理を施すステップと、
d)ステップ(c)の後で且つステップ(e)の前に、当該第2のアイテムを当該第1のアイテムの空洞の中に接触状態で挿入して組立体を形成するステップと、
e)当該第1のアイテムおよび当該第2のアイテムが少なくとも部分的に焼結するように、当該組立体を熱処理するステップと、
f)ステップ(e)の後、当該第1のアイテムの空洞から当該第2のアイテムを取り外すステップと、
を含み、
ステップ(e)の際に当該第1のアイテムおよび当該第2のアイテムがそれぞれ収縮するときに同じ割合で収縮し、当該第2のアイテムが、重力によって当該第1のアイテムの開口部に幾何学的歪みが生じることによる当該開口部の内側への崩壊を防ぐ
ことを特徴とする方法。 - 前記造形材料が金属粉末である請求項1の方法。
- 前記造形材料がセラミック粉末である請求項1の方法。
- 前記造形材料が炭素粉末および黒鉛粉末の群から選択される少なくとも1つから成る請求項1の方法。
- 前記ステップ(e)には、前記第1のアイテムおよび前記第2のアイテムを完全に焼結させることが含まれる請求項1の方法。
- 前記ステップ(e)には、固化できる液体物質により前記第1のアイテムを浸潤させることが含まれる請求項1の方法。
- 前記固化できる液体物質が前記ステップ(e)の後に前記第1のアイテムに残存している状態では固体である請求項6の方法。
- 前記ステップ(c)がコーティング材により前記第2のアイテムの外面の少なくとも一部を覆うことを含み、当該コーティング材は前記ステップ(e)の際に前記第2のアイテムが前記第1のアイテムに接合するのを防ぐように適合されている請求項1の方法。
- 前記コーティング材が窒化ホウ素である請求項8の方法。
- 前記第1のアイテムが封入型ベーンローターである請求項1の方法。
- 請求項1の方法であって、さらに
(g)前記第1のアイテムの外面の一部領域と合わさる面を有する第3のアイテムを前記造形材料から3次元印刷結合剤噴射プロセスによって印刷するステップと、
(h)前記ステップ(e)の際に当該第3のアイテムが前記第1のアイテムに接合するのを防ぐために、当該第3のアイテムの面の一部または全部および前記第1のアイテムの外面の一部領域の一部または全部のうち少なくとも1つを処理するステップと、
(i)前記ステップ(e)の際、当該第3のアイテムの面の上で前記第1のアイテムの外面の一部領域を少なくとも部分的に支えるステップと、
(j)前記ステップ(e)の際、当該第3のアイテムを少なくとも部分的に焼結させるステップと、
を含み、
前記ステップ(e)の際に前記第1のアイテムおよび当該第3のアイテムがそれぞれ収縮するときに同じ割合で収縮し、当該第3のアイテムが、重力によって前記第1のアイテムの外面の支持された領域に幾何学的歪みが生じることを防ぐ
ことを特徴とする方法。 - 前記ステップ(h)には、前記ステップ(e)の際に前記第3のアイテムが前記第1のアイテムに接合するのを防ぐように適合されたコーティング材で、前記第3のアイテムの面の一部を覆うことが含まれる、請求項11の方法。
- 前記第2のアイテムは、前記第2のアイテムが前記第1のアイテムの空洞の中に挿入された後で前記第1のアイテムの空洞の外部に延びているつまみ部を有する、請求項1の方法。
- さらに前記ステップ(e)の際に粉末床で前記組立体を支持することを含み、当該粉末床は流動可能な粉末から成り、前記第2のアイテムは前記第2のアイテムを通り抜けて当該粉末が流動可能であるように適合されたオリフィスを有する請求項1の方法。
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US201462064045P | 2014-10-15 | 2014-10-15 | |
US62/064,045 | 2014-10-15 | ||
PCT/US2015/055644 WO2016061302A1 (en) | 2014-10-15 | 2015-10-15 | Methods for controlling warpage of cavities of three-dimensionally printed articles during heat treatment |
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JP2018501398A JP2018501398A (ja) | 2018-01-18 |
JP6764401B2 true JP6764401B2 (ja) | 2020-09-30 |
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US (1) | US20170252973A1 (ja) |
EP (1) | EP3206861A4 (ja) |
JP (1) | JP6764401B2 (ja) |
KR (1) | KR102375446B1 (ja) |
CN (1) | CN107073820A (ja) |
WO (1) | WO2016061302A1 (ja) |
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AU2017372858B2 (en) | 2016-12-06 | 2023-02-02 | Markforged, Inc. | Additive manufacturing with heat-flexed material feeding |
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US10688558B2 (en) * | 2018-06-06 | 2020-06-23 | General Electric Company | Setter assembly for additive manufacturing |
CN112601654B (zh) * | 2018-09-13 | 2023-01-31 | 西门子(中国)有限公司 | 打印制造传感器的方法 |
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GB2490087B (en) * | 2010-11-29 | 2016-04-27 | Halliburton Energy Services Inc | Forming objects by infiltrating a printed matrix |
EP2529694B1 (de) * | 2011-05-31 | 2017-11-15 | Ivoclar Vivadent AG | Verfahren zur generativen Herstellung von Keramikformkörpern durch 3D-Inkjet-Drucken |
JP5772668B2 (ja) * | 2012-03-08 | 2015-09-02 | カシオ計算機株式会社 | 3次元造形方法及び造形物複合体並びに3次元造形装置 |
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US20140169971A1 (en) * | 2012-12-18 | 2014-06-19 | Hamilton Sundstrand Corporation | Additively manufactured impeller |
JP6270353B2 (ja) * | 2013-06-28 | 2018-01-31 | シーメット株式会社 | 三次元造形体およびサポート形成方法 |
GB201500608D0 (en) * | 2015-01-14 | 2015-02-25 | Digital Metal Ab | Sintering method, manufacturing method, object data processing method, data carrier and object data processor |
-
2015
- 2015-10-15 CN CN201580055911.7A patent/CN107073820A/zh active Pending
- 2015-10-15 WO PCT/US2015/055644 patent/WO2016061302A1/en active Application Filing
- 2015-10-15 KR KR1020177012579A patent/KR102375446B1/ko active IP Right Grant
- 2015-10-15 US US15/517,837 patent/US20170252973A1/en not_active Abandoned
- 2015-10-15 EP EP15850366.4A patent/EP3206861A4/en active Pending
- 2015-10-15 JP JP2017519294A patent/JP6764401B2/ja active Active
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JP2018501398A (ja) | 2018-01-18 |
US20170252973A1 (en) | 2017-09-07 |
KR20170068543A (ko) | 2017-06-19 |
EP3206861A4 (en) | 2018-05-23 |
KR102375446B1 (ko) | 2022-03-17 |
CN107073820A (zh) | 2017-08-18 |
EP3206861A1 (en) | 2017-08-23 |
WO2016061302A1 (en) | 2016-04-21 |
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