JP6339108B2 - 粉末でつくられたニアネットシェイプ構成要素の圧密化/成型方法 - Google Patents
粉末でつくられたニアネットシェイプ構成要素の圧密化/成型方法 Download PDFInfo
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 24
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- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 8
- 239000010936 titanium Substances 0.000 claims description 8
- 229910052719 titanium Inorganic materials 0.000 claims description 8
- 239000013078 crystal Substances 0.000 claims description 6
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- 230000000171 quenching effect Effects 0.000 claims description 5
- 238000005496 tempering Methods 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 2
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- 229910000640 Fe alloy Inorganic materials 0.000 description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 6
- 230000010355 oscillation Effects 0.000 description 6
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 229910001563 bainite Inorganic materials 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
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- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
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- ZSLUVFAKFWKJRC-IGMARMGPSA-N 232Th Chemical compound [232Th] ZSLUVFAKFWKJRC-IGMARMGPSA-N 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052692 Dysprosium Inorganic materials 0.000 description 1
- 229910052688 Gadolinium Inorganic materials 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 229910052776 Thorium Inorganic materials 0.000 description 1
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- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- KBQHZAAAGSGFKK-UHFFFAOYSA-N dysprosium atom Chemical compound [Dy] KBQHZAAAGSGFKK-UHFFFAOYSA-N 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- UIWYJDYFSGRHKR-UHFFFAOYSA-N gadolinium atom Chemical compound [Gd] UIWYJDYFSGRHKR-UHFFFAOYSA-N 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 229910001026 inconel Inorganic materials 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
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- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 239000012256 powdered iron Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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- 230000007704 transition Effects 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
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- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
- H05B6/101—Induction heating apparatus, other than furnaces, for specific applications for local heating of metal pieces
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B21D21/00—Combined processes according to methods covered by groups B21D1/00 - B21D19/00
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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
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
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- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
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- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/42—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for armour plate
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- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
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- H05B6/06—Control, e.g. of temperature, of power
- H05B6/08—Control, e.g. of temperature, of power using compensating or balancing arrangements
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- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
- H05B6/105—Induction heating apparatus, other than furnaces, for specific applications using a susceptor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
- B21D26/14—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces applying magnetic forces
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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
- B22F3/10—Sintering only
- B22F3/105—Sintering only by using electric current other than for infrared radiant energy, laser radiation or plasma ; by ultrasonic bonding
- B22F2003/1053—Sintering only by using electric current other than for infrared radiant energy, laser radiation or plasma ; by ultrasonic bonding by induction
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- B22F2202/00—Treatment under specific physical conditions
- B22F2202/05—Use of magnetic field
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- H05B2206/02—Induction heating
- H05B2206/023—Induction heating using the curie point of the material in which heating current is being generated to control the heating temperature
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Description
Claims (11)
- 粉末で作られたプリフォーム(22)を圧密化するための方法であって、
前記プリフォーム(22)をスマートサセプタ(18、20)の間に配置することと、
前記スマートサセプタ(18、20)の表面を通過する磁束を有する変動低強度磁界を適用することにより、前記スマートサセプタ(18、20)をレベリング温度まで加熱することと、
少なくとも前記スマートサセプタ(18、20)の温度が前記レベリング温度に達した後の期間中に、圧密圧力を前記プリフォーム(22)に加えることと、
前記圧密圧力が加えられている間に、前記プリフォーム(22)の表面を通過する磁束を有するパルス高強度磁界を適用することと
を含み、
前記高強度磁界の強度は、前記低強度磁界のピーク強度よりも大きく、前記高強度磁界の前記強度及びパルスレートは、前記プリフォーム(22)の結晶相が実質的に一定の温度で急速に周期的な位相の変化を起こすように選択され、前記パルス高強度磁界は、前記プリフォーム(22)の超塑性が前記周期的な位相の変化の間に獲得されるほど十分に長く適用される、方法。 - 前記高強度磁界の前記強度は、0.5テスラ以上である、請求項1に記載の方法。
- 前記低強度磁界の強度は、0.1テスラ未満である、請求項2に記載の方法。
- 前記高強度磁界の前記パルスレートは、毎秒複数のパルスである、請求項1に記載の方法。
- 前記圧密圧力は、5MPaから20MPaの範囲にある、請求項1に記載の方法。
- 前記低強度磁界は、0.5kHzから10kHzの範囲にある周波数で交番する、請求項1に記載の方法。
- 前記粉末は、鉄ベース又はチタニウムベースの合金を含む、請求項1に記載の方法。
- プリフォーム(22)を作成するために粉末を冷間圧縮することと、
誘導ツールアセンブリ内の空間を無酸素ガスで充満させることと
を更に含む、請求項1に記載の方法。 - 前記パルス高強度磁界適用のステップ後、及び前記プリフォーム(22)が、前記スマートサセプタ(18、20)のうちの第1と第2のサセプタの間に留まる間に実行されるステップであって、
前記プリフォーム(22)をクエンチするステップと、
前記クエンチされたプリフォーム(22)を焼き戻すステップと、
前記プリフォーム(22)を誘導ツールアセンブリから取り外すステップと
を更に含む、請求項1に記載の方法。 - 前記プリフォーム(22)は、熱振動を使用して圧密化されるプリフォームに対する厚さ制限を上回る厚さを有する、請求項1に記載の方法。
- 粉末で作られたプリフォーム(22)を圧密化するための装置であって、
それぞれが少なくとも一つの誘導コイル(34)のそれぞれの部分と、互いに向かい合う表面を有する第1及び第2のスマートサセプタ(18、20)とを備える第1及び第2のツールアセンブリであって、前記第1のツールアセンブリは、前記向かい合う表面の間に配置されたプリフォーム(22)上に圧縮力圧力を加えるために、前記第2のツールアセンブリに対して移動可能である、第1及び第2のツールアセンブリと、
前記少なくとも一つの誘導コイル(34)に電気的に接続された電源(48)と、
前記向かい合う表面が、前記第1及び第2のツールアセンブリの間に配置されるプリフォーム(22)に圧縮力を及ぼすように、前記第1及び第2のツールアセンブリの一つ又は両方に力を加えるための手段と、
コントローラ(44)であって、前記電源(48)及び前記力を加えるための手段を、
(a)前記スマートサセプタ(18、20)がレベリング温度に加熱されるまで、前記スマートサセプタ(18、20)の表面を通過する磁束を有する変動低強度磁界を適用するために、前記電源(48)を制御することと、
(b)少なくとも前記スマートサセプタ(18、20)の温度が前記レベリング温度に達した後の期間中に、圧密圧力に等しい圧縮力を前記プリフォーム(22)に加えるために、前記力を加えるための手段を制御することと、
(c)前記圧密圧力が加えられている間に、前記プリフォーム(22)の表面を通過する磁束を有するパルス高強度磁界を適用するために、前記電源(48)を制御することと
により制御するようにプログラムされたコントローラ(44)と
を備え、
前記高強度磁界の強度は、前記低強度磁界のピーク強度よりも大きく、前記高強度磁界の前記強度及びパルスレートは、前記プリフォーム(22)の結晶相が実質的に一定の温度で急速に周期的な位相の変化を起こすように選択され、前記パルス高強度磁界は、前記プリフォーム(22)の超塑性が前記周期的な位相の変化の間に獲得されるほど十分に長く適用される、装置。
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