JP6735569B2 - クラックのない金属粉末成形品のニアネットシェイプ成形 - Google Patents
クラックのない金属粉末成形品のニアネットシェイプ成形 Download PDFInfo
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- JP6735569B2 JP6735569B2 JP2016035652A JP2016035652A JP6735569B2 JP 6735569 B2 JP6735569 B2 JP 6735569B2 JP 2016035652 A JP2016035652 A JP 2016035652A JP 2016035652 A JP2016035652 A JP 2016035652A JP 6735569 B2 JP6735569 B2 JP 6735569B2
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- 229910052751 metal Inorganic materials 0.000 title claims description 119
- 239000002184 metal Substances 0.000 title claims description 119
- 239000000843 powder Substances 0.000 title claims description 116
- 238000000465 moulding Methods 0.000 title claims description 30
- 238000000034 method Methods 0.000 claims description 46
- 230000002706 hydrostatic effect Effects 0.000 claims description 13
- 238000003825 pressing Methods 0.000 claims description 9
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 8
- 238000005245 sintering Methods 0.000 claims description 5
- 239000011812 mixed powder Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- 150000003608 titanium Chemical class 0.000 claims description 3
- 238000000151 deposition Methods 0.000 claims 2
- 239000000047 product Substances 0.000 description 24
- 239000007779 soft material Substances 0.000 description 14
- 238000004519 manufacturing process Methods 0.000 description 12
- 238000005452 bending Methods 0.000 description 11
- 238000007906 compression Methods 0.000 description 10
- 239000000463 material Substances 0.000 description 7
- 238000012423 maintenance Methods 0.000 description 5
- 238000005056 compaction Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 4
- 238000007711 solidification Methods 0.000 description 4
- 230000008023 solidification Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 229910000883 Ti6Al4V Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000004320 controlled atmosphere Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000005058 metal casting Methods 0.000 description 1
- 239000011236 particulate material Substances 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000009419 refurbishment Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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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
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
-
- 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
- B22F3/003—Apparatus, e.g. furnaces
-
- 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
- B22F3/02—Compacting only
-
- 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
- B22F3/02—Compacting only
- B22F3/04—Compacting only by applying fluid pressure, e.g. by cold isostatic pressing [CIP]
-
- 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
- B22F3/10—Sintering only
-
- 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
- B22F3/12—Both compacting and sintering
- B22F3/1208—Containers or coating used therefor
- B22F3/1216—Container composition
-
- 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
- B22F3/12—Both compacting and sintering
- B22F3/14—Both compacting and sintering simultaneously
- B22F3/15—Hot isostatic pressing
-
- 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
- B22F3/12—Both compacting and sintering
- B22F3/16—Both compacting and sintering in successive or repeated steps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
- B30B11/001—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a flexible element, e.g. diaphragm, urged by fluid pressure; Isostatic presses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/02—Dies; Inserts therefor; Mounting thereof; Moulds
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C14/00—Alloys based on titanium
-
- 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
- B22F2301/00—Metallic composition of the powder or its coating
- B22F2301/20—Refractory metals
- B22F2301/205—Titanium, zirconium or hafnium
-
- 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
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
- B22F2998/10—Processes characterised by the sequence of their steps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Powder Metallurgy (AREA)
- Press Drives And Press Lines (AREA)
Description
前記容器(45)に金属粉末(40、42)を充填するに際して、前記金属粉末(40、42)を前記両側に配置することと、
前記可撓性の容器(45)を加圧することで、前記金属粉末(40、42)を圧縮して圧粉体(75)にすることと、
前記圧粉体(75)を前記容器(45)から取り外すことと、
前記圧粉体(75)を焼結して固化成形品(20)にすることと、
を含む、ニアネットシェイプの金属成形品(20)の成形方法。
前記容器(45)を充填することは、前記容器(45)の下側内部領域(55)に前記金属粉末(40、42)の層を導入することを含み、
前記少なくとも1つのダイ部品(35)を設置することは、前記金属粉末(40、42)の前記層の上に前記金属プレート(36)を設置することを含む、付記1に記載の方法。
少なくとも1つのダイ部品(35)を前記可撓性の容器(45)の内部に設置するに際して、当該ダイ部品(35)が負荷により屈曲することを実質的に防ぐような態様で前記ダイ部品(35)を前記金属粉末(40、42)の中に配置することを含むことと、
前記可撓性の容器(45)に静水圧(P)をかけることで、前記金属粉末(40、42)を所望の圧粉体(75)に圧縮することと、
を含む、クラックのない金属粉末の圧粉体(75)の作成方法。
前記ダイ部品(35)を可撓性の容器(45)の内部に設置することと、
前記ダイ部品(35)を覆うように、金属粉末(40、42)の層を前記可撓性の容器(45)の内部に導入することと、
圧縮に際して前記ダイ部品(35)にかかる負荷を釣り合わせるために、比較的軟質の材料(40、42)の層を前記可撓性の容器(45)の下側に導入することと、
前記可撓性の容器(45)に静水圧(P)をかけることによって、前記金属粉末(40、42)を粉圧体(75)に圧縮することと、
を含む、クラックのない金属粉末の圧粉体の作成方法。
静水圧(P)によって加圧されるように構成された可撓性の壁(30)を有する容器(45)と、
前記成形品(20)の特異部を形成するために、前記容器(45)の内部に設置された少なくとも1つの比較的剛性のダイ部品(35)であって、互いに対向する第1および第2の側と全体対称面(24)とを有するダイ部品(35)と、
前記ダイ部品(35)の前記第1の側に配置された金属粉末(40、42)の層と、
前記容器(45)が静水圧(P)で加圧されると前記ダイ部品(35)に生じる負荷を釣り合わせるために、前記ダイ部品(35)の前記第2の側に配置された比較的軟質の材料(40、42)の層と、を有するダイ組立体。
前記ダイ部品(35)の前記第2の側に配された、第2成形品(20)の特異部を形成するための第2要素群(34b)と、を含む、
付記15〜17のいずれかに記載の方法。
Claims (11)
- 少なくとも1つのダイ部品(35)を可撓性の容器(45)の内部に設置して、前記容器(4)の内部を当該ダイ部品(35)に対して互いに対向する両側に位置する2つの内部領域(55,56)に分離するとともに、前記ダイ部品(35)を通る平面(24)に剛性中心を位置させることと、
前記容器(45)の前記2つの内部領域(55,56)に金属粉末(40、42)を充填することと、
前記可撓性の容器(45)を加圧することで、前記2つの内部領域(55,56)のうちの少なくとも一方(55)において前記金属粉末(40)を圧縮して圧粉体(75)にするとともに、前記2つの内部領域(55,56)のうちの他方(56)において前記金属粉末(42)を圧縮することにより、前記平面(24)の両側における力を均衡させることと、
前記圧粉体(75)を前記容器(45)から取り外すことと、
前記圧粉体(75)を焼結して固化成形品(20)にすることと、
を含む、ニアネットシェイプの金属成形品(20)の成形方法。 - 前記ダイ部品(35)は金属プレート(36)であり、
前記容器(45)を充填することは、前記容器(45)の下側内部領域(55)に前記金属粉末(42)の層を導入することを含み、
前記少なくとも1つのダイ部品(35)を設置することは、前記金属粉末(42)の前記層の上に前記金属プレート(36)を設置することを含む、請求項1に記載の方法。 - 前記容器(45)を充填することは、前記金属プレート(36)を覆うように、前記容器(45)の上側内部領域(65)に前記金属粉末(40)の層を導入することを含む、請求項2に記載の方法。
- 前記金属粉末(40、42)は、元素混合粉末からなる水素化脱水素チタン合金組成物である、請求項1〜3のいずれかに記載の方法。
- 前記金属粉末(40、42)を圧縮して圧粉体(75)にすることは、冷間等方性加圧を用いて行われる、請求項1〜4のいずれかに記載の方法。
- 金属粉末成形品(20)の成形に用いるダイ組立体(26)であって、
静水圧(P)によって加圧されるように構成された可撓性の壁(30)を有する容器(45)と、
前記成形品(20)の特異部を形成するために、前記容器(45)の内部に設置された少なくとも1つのダイ部品(35)であって、前記容器(4)の内部を当該ダイ部品(35)に対して互いに対向する第1の側及び第2の側に位置する2つの内部領域(55,56)に分離するとともに、前記ダイ部品(35)を通る平面(24)に剛性中心を有するダイ部品(35)と、
前記ダイ部品(35)の前記第1の側に配置された金属粉末(40)の層と、
前記容器が静水圧(P)で加圧されると前記ダイ部品(35)に生じる負荷を釣り合わせるために、前記ダイ部品(35)の前記第2の側に配置された金属粉末(42)の層と、を有するダイ組立体。 - 前記第1の側と第2の側の金属粉末(40、42)は同一の金属粉末である、請求項6に記載のダイ組立体(26)。
- 前記第1の側と第2の側の金属粉末(40、42)は、いずれもチタン合金粉末(40、42)である、請求項7に記載のダイ組立体(26)。
- 前記ダイ部品(35)は、前記ダイ部品(35)の前記第1の側に配置された、前記第1成形品(20)の特異部を形成するための第1要素群(34a)と、
前記ダイ部品(35)の前記第2の側に配された、第2成形品(20)の特異部を形成するための第2要素群(34b)と、を含む、
請求項6〜8のいずれかに記載のダイ組立体(26)。 - 前記第1要素群(34a)は、前記第2要素群(34b)と鏡像の関係にある、請求項9に記載のダイ組立体(26)。
- 前記第1および第2要素群(34a、34b)は、平面(24)に対して対称である、請求項9に記載のダイ組立体(26)。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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US14/637,641 | 2015-03-04 | ||
US14/637,641 US10046392B2 (en) | 2015-03-04 | 2015-03-04 | Crack-free fabrication of near net shape powder-based metallic parts |
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JP2016166410A JP2016166410A (ja) | 2016-09-15 |
JP6735569B2 true JP6735569B2 (ja) | 2020-08-05 |
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US (2) | US10046392B2 (ja) |
EP (2) | EP3556489B1 (ja) |
JP (1) | JP6735569B2 (ja) |
KR (1) | KR102415577B1 (ja) |
CN (1) | CN105935767B (ja) |
RU (1) | RU2720616C2 (ja) |
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US10046392B2 (en) | 2015-03-04 | 2018-08-14 | The Boeing Company | Crack-free fabrication of near net shape powder-based metallic parts |
CN108838404B (zh) * | 2018-06-20 | 2021-06-15 | 北京科技大学 | 钛合金低成本近净成形方法 |
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US10046392B2 (en) | 2015-03-04 | 2018-08-14 | The Boeing Company | Crack-free fabrication of near net shape powder-based metallic parts |
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US20180326481A1 (en) | 2018-11-15 |
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CN105935767B (zh) | 2019-09-06 |
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