JP2013166236A - 表面仕上げが改善されたチタンアルミナイド物品 - Google Patents
表面仕上げが改善されたチタンアルミナイド物品 Download PDFInfo
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- titanium aluminide
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
- B24C1/04—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for treating only selected parts of a surface, e.g. for carving stone or glass
Abstract
【解決手段】高圧下の流体を、チタンアルミナイド合金含有物品、例えばタービンブレードの表面の端から端までに高い直線速度で通過させることにより、チタンアルミナイド合金含有物品の表面を変形することと、チタンアルミナイド合金含有物品の表面から材料を取り除くこととを含む。高性能タービンブレードを加工する際に使用することができる。また、改善された表面仕上げを得ることが困難であるチタン含有物品の処理にも応用できる。
【選択図】図1
Description
本明細書で教示されている方法とは対照的に、典型的には、チタンアルミナイドコンポーネントの表面仕上げは、多軸フライス加工、研削、アブレイシブ研磨、転動プロセス、または化学研磨によって実行される。本明細書で表示されている方法とは対照的に、機械的方法は表面を損傷する危険性を伴い、化学的方法は時間がかかる。一貫して形成できる表面仕上げ上のこの従来の処理には制限がある。これらの大型の機械加工技術によって導入される力は、コンポーネントの表面のひび割れを生じさせうる望ましくない応力を引き起こしうる。典型的なチタンアルミナイド鋳造品のひび割れに対する延性および感受性が制限されるため、従来の研削および研磨技術を使用した鋳造品の表面仕上げの改善が制限される。本発明の技術では、上述の不利点のリスクが大幅に軽減される改善された表面仕上げが実現される。
Claims (33)
- チタンアルミナイド合金含有物品から材料を取り除くための方法であって、
チタンアルミナイド合金含有物品を用意することと、
高圧下の流体を前記チタンアルミナイド合金含有物品の表面の端から端まで通過させることと、
前記チタンアルミナイド合金含有物品の表面を変形することと、
前記チタンアルミナイド合金含有物品から材料を取り除くこととを含み、前記チタンアルミナイド合金含有物品の前記表面から、前記物品の表面にひびを入れたり、損傷したりすることなく、凹凸および点食を取り除く方法。 - 前記流体は、前記物品の前記表面の端から端まで粒子の媒体を通過させることと一緒に、またはそれと同時に通過し、前記流体は、約50ミクロンから約400ミクロンまでの範囲の粒子をさらに含む請求項1記載の方法。
- 高圧下の流体が出てくるノズルの運動は、回転運動、平行移動、振動、またはこれらの組み合わせからなる群から選択される請求項1記載の方法。
- 前記流体は、水、油、グリコール、アルコール、またはこれらの組み合わせからなる群から選択される請求項1記載の方法。
- 約50ミクロンから約400ミクロンまでの範囲の粒子は、前記流体中に懸濁され、その後、前記流体は、前記物品の前記表面の端から端まで通過し、前記流体の固形物負荷は、質量流量で約10%から約40%までの範囲内である請求項1記載の方法。
- 前記流体は、毎分約2インチから毎分約100インチまでの速さで前記チタンアルミナイド合金含有物品の前記表面上を通過する請求項1記載の方法。
- 前記流体が前記チタンアルミナイド合金含有物品の前記表面の端から端まで通過した後、前記物品の前記表面は、前記物品の前記表面から、また垂直に前記物品内に約100ミクロン未満の深さにわたって変形する請求項1記載の方法。
- 前記チタンアルミナイド合金は、チタンアルミナイド系のγ相およびα2(Ti3Al)相を含む請求項1記載の方法。
- 前記チタンアルミナイド合金含有物品は、チタンアルミナイド合金含有タービンブレードを含む請求項1記載の方法。
- 前記物品の前記表面の前記粗さは、少なくとも約50%低減される請求項1記載の方法。
- 前記流体は、アルミナ、ザクロ石、シリカ、炭化ケイ素、炭化ホウ素、ダイヤモンド、炭化タングステン、およびこれらの組成物の粒子をさらに含む請求項1記載の方法。
- 前記取り除くステップは、前記物品の前記表面の前記粗さを約50マイクロインチRa超だけ低減することを含む請求項1記載の方法。
- 処理後の前記物品の前記表面の前記粗さは、約2ミクロン未満である請求項1記載の方法。
- チタンアルミナイド合金含有物品の表面を変えるための方法であって、
構造物上の前記チタンアルミナイド合金含有物品を安定化することと、
流体を前記安定化されたチタンアルミナイド合金物品の表面の端から端まで高い直線速度で通過させることと、
チタンアルミナイド系γ相と前記チタンアルミナイド合金のα2(Ti3Al)相の両方を変形することとを含み、前記チタンアルミナイド合金含有物品の前記表面から材料が取り除かれ、それにより、前記物品の前記表面を変える方法。 - 高圧下の前記流体は、前記物品の前記表面の端から端まで約50ミクロンから約400ミクロンまでの範囲の粒子媒体を通過させることと一緒に、またはそれと同時に通過する請求項14記載の方法。
- 前記流体は、毎分約5インチから毎分約1000インチまでの速さで前記チタンアルミナイド合金含有物品の前記表面上を通過する請求項14記載の方法。
- 高圧下の前記流体が前記チタンアルミナイド合金含有物品の前記表面の端から端まで通過した後、前記物品の前記表面は、前記物品の前記表面から、また垂直に前記物品内に約100ミクロン未満の深さにわたって変形する請求項14記載の方法。
- 前記チタンアルミナイド合金含有物品は、チタンアルミナイド合金含有タービンブレードを含む請求項14記載の方法。
- 前記物品の前記表面の粗さは、少なくとも約50%低減される請求項14記載の方法。
- 高圧下の前記流体は、アルミナ、ザクロ石、シリカ、炭化ケイ素、炭化ホウ素、ダイヤモンド、炭化タングステン、およびこれらの組成物の粒子をさらに含む請求項14記載の方法。
- 前記流体は、水、油、グリコール、アルコール、またはこれらの組み合わせからなる群から選択される請求項14記載の方法。
- 約50ミクロンから約400ミクロンまでの範囲の粒子は、前記流体中に懸濁され、その後、前記流体は、前記物品の前記表面の端から端まで通過し、前記流体の固形物負荷は、質量流量で約10%から約40%までの範囲内である請求項14記載の方法。
- 処理後に、前記Ra値は、約1/3から約1/6に低減される請求項14記載の方法。
- 処理後の前記物品の前記表面の前記粗さは、約2ミクロン未満である請求項14記載の方法。
- 請求項1記載のプロセスによって形成されるチタンアルミナイド合金含有物品。
- チタンアルミナイド合金含有物品の表面を機械加工するための方法であって、
チタンアルミナイド合金含有物品を用意することと、
高圧下の流体を前記チタンアルミナイド合金含有物品の表面の端から端まで通過させることと、
前記チタンアルミナイド合金含有物品の表面を変形することと、
前記チタンアルミナイド合金含有物品の前記表面から材料を取り除くこととを含む方法。 - 高圧下の前記流体は、前記物品の前記表面の端から端まで約50ミクロンから約400ミクロンまでの範囲の粒子媒体を通過させることと一緒に、またはそれと同時に通過する請求項26記載の方法。
- 前記流体は、毎分約50インチから毎分約1000インチまでの速さで前記チタンアルミナイド合金含有物品の前記表面上を通過する請求項26記載の方法。
- 高圧下の前記流体が前記チタンアルミナイド合金含有物品の前記表面の端から端まで通過した後、前記物品の前記表面は、前記物品の前記表面から、また垂直に前記物品内に約100ミクロン未満の深さにわたって変形する請求項26記載の方法。
- 前記チタンアルミナイド合金含有物品は、チタンアルミナイド合金含有タービンブレードを含む請求項26記載の方法。
- 高圧下の前記流体は、アルミナ、ザクロ石、シリカ、炭化ケイ素、炭化ホウ素、ダイヤモンド、炭化タングステン、およびこれらの組成物の粒子をさらに含む請求項26記載の方法。
- 約50ミクロンから約400ミクロンまでの範囲の粒子は、前記流体中に懸濁され、その後、前記流体は、前記物品の前記表面の端から端まで通過し、前記流体の固形物負荷は、1リットル当たり約2000グラムから1リットル当たり約5000グラムまでの範囲内である請求項26記載の方法。
- チタンアルミナイド含有タービンブレードの凸状表面からオーバーストック材料を取り除くための方法であって、チタンアルミナイド合金含有タービンブレードを用意することと、高圧下の流体を前記チタンアルミナイド合金含有タービンブレードの凸状表面の端から端まで通過させることと、前記チタンアルミナイド含有タービンブレードの前記凸状表面からオーバーストック材料を約0.025mmから約5.0mm、取り除くこととを含む方法。
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US13/396,908 US9011205B2 (en) | 2012-02-15 | 2012-02-15 | Titanium aluminide article with improved surface finish |
US13/396,908 | 2012-02-15 |
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JP2013166236A true JP2013166236A (ja) | 2013-08-29 |
JP2013166236A5 JP2013166236A5 (ja) | 2016-03-17 |
JP6179933B2 JP6179933B2 (ja) | 2017-08-16 |
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US (1) | US9011205B2 (ja) |
EP (1) | EP2628568B1 (ja) |
JP (1) | JP6179933B2 (ja) |
CN (1) | CN103255420B (ja) |
BR (1) | BR102013002801A2 (ja) |
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JP6179933B2 (ja) | 2017-08-16 |
CN103255420B (zh) | 2018-09-07 |
CA2805199C (en) | 2019-10-01 |
US9011205B2 (en) | 2015-04-21 |
US20130210320A1 (en) | 2013-08-15 |
EP2628568B1 (en) | 2016-02-10 |
EP2628568A1 (en) | 2013-08-21 |
BR102013002801A2 (pt) | 2015-06-23 |
CA2805199A1 (en) | 2013-08-15 |
CN103255420A (zh) | 2013-08-21 |
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