JP5947482B2 - 超合金製品を処理する方法及び関連する補修プロセス - Google Patents
超合金製品を処理する方法及び関連する補修プロセス Download PDFInfo
- Publication number
- JP5947482B2 JP5947482B2 JP2010278692A JP2010278692A JP5947482B2 JP 5947482 B2 JP5947482 B2 JP 5947482B2 JP 2010278692 A JP2010278692 A JP 2010278692A JP 2010278692 A JP2010278692 A JP 2010278692A JP 5947482 B2 JP5947482 B2 JP 5947482B2
- Authority
- JP
- Japan
- Prior art keywords
- laser
- cavity
- substrate
- laser beam
- crack
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/40—Removing material taking account of the properties of the material involved
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/005—Repairing methods or devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/001—Turbines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2230/00—Manufacture
- F05D2230/10—Manufacture by removing material
- F05D2230/13—Manufacture by removing material using lasers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2230/00—Manufacture
- F05D2230/90—Coating; Surface treatment
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- Laser Beam Processing (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Description
上述のように、基材は、少なくとも1つのキャビティを含む。本明細書で使用されるように、用語「キャビティ」は、穴、凹部、窪み、チャンネル又は隙間の何れかのタイプをさすことを意図している。この用語はまた、例えば、粗い区域又は陥凹区域など、基材表面上の欠陥又は異常とすることができる。タービンブレードなどのタービン構成部品の場合、キャビティ又は「欠陥」は、図1に示すような亀裂であることが多い。補修可能な亀裂のサイズは、深さが約25ミクロン〜約10mm、幅が約5ミクロン〜約4mm(例えば、タービンブレードの壁厚を通過する半径方向で測定)まで大きく変わることができる。(典型的なHPTブレードの壁厚は、約0.5mm〜約2mmに及ぶことができる。)
上述のように、本発明の実施形態による、接着酸化物材料の実質的に全てを除去するようキャビティ表面を処理するのにレーザが使用される。このプロセスでは、種々のタイプのレーザを用いることができる。非限定的な実施例には、固体レーザ(例えば、ダイオードレーザ)、ファイバーレーザ及びエキシマレーザが含まれる。(ファイバーレーザは、固体レーザの1つのタイプとみなすこともできる。)当業者は、このタイプのレーザの各々の作動に精通している。特定の実施例は、1ミクロンレーザ又は緑色レーザ(0.532ミクロン)を含むが、波長は、近赤外から紫外線まで変わることができる。レーザの波長を調整する技術はまた、例えば「周波数逓倍器」又は逓倍結晶を用いて当該技術分野において知られている。
12 ブレード根元
14 翼形部
16 先端部
24 亀裂
30 レーザ装置
31 加工物の表面
32 加工物
33 亀裂
34 拘束具
36 5軸コントローラ
38 プラットフォーム
40 昇降装置
42 コンピュータ/コントローラ
44 レーザ供給源
46 レーザビーム
48 スキャンモジュール
50 カメラ
52 遮蔽筐体
53 ガス源
54 電線管
56 電線管
58 電線管
59 電線管
60 亀裂
62 基材の表面
64 基材
66 カットライン/境界領域
67 キャビティの壁
Claims (10)
- 接着金属酸化物材料を表面(31)上に含有する少なくとも1つのキャビティ(33)を含む超合金基材(32)を処理する方法であって、当該方法が、
前記キャビティ表面を水素ガス又は水素含有ガスに接触させ、前記接着金属酸化物材料を除去するのに十分な時間、前記キャビティ表面に短パルス高繰り返し率のレーザビーム(46)を配向するステップ
を含んでおり、前記レーザビーム(46)が、前記金属酸化物材料のレーザアブレーションを起こすのに十分な100メガワット/cm2〜10ギガワット/cm2の範囲のピークパワー密度により特徴付けられる、方法。 - 前記レーザビームパルスが、1ナノ秒〜1マイクロ秒のパルス長を有する、請求項1記載の方法。
- 前記レーザビーム(46)の供給源(44)が、固体レーザ、ファイバーレーザ及びエキシマレーザからなる群から選択される装置である、請求項1又は請求項2記載の方法。
- 前記レーザビーム(46)が、スキャンモジュール(48)を通じて前記キャビティ表面(31)上に集束される、請求項1乃至請求項3のいずれか1項記載の方法。
- 前記キャビティが、超合金基材(32)内の亀裂(33)である、請求項1乃至請求項4のいずれか1項記載の方法。
- 前記キャビティ表面(31)上の接着金属酸化物が、酸化アルミニウム、酸化ジルコニウム、酸化ニッケル、酸化クロム、酸化モリブデン及びカルシウム・マンガン・アルミニウム・ケイ素酸化物(CMAS)からなる群から選択される1種以上の材料を含む、請求項1乃至請求項5のいずれか1項記載の方法。
- 前記超合金基材(10)がタービンエンジン構成部品である、請求項1乃至請求項6のいずれか1項記載の方法。
- 前記キャビティ(33)が亀裂であり、前記方法が更に、該亀裂を補修するステップを含む、請求項1乃至請求項7のいずれか1項記載の方法。
- 接着金属酸化物材料を表面(62)上に含有する少なくとも1つのキャビティ(60)を含む超合金基材(64)を処理する方法であって、当該方法が、
前記キャビティ表面を水素ガス又は水素含有ガスに接触させ、前記超合金材料に切り込むことができるレーザ動作条件下で、前記キャビティ(60)を含む前記基材(62)上の領域に高パワー短パルス高繰り返し率のレーザビーム(46)を配向し、前記基材(64)内に前記キャビティ(60)を囲む境界領域(66)を形成させるステップ
を含んでおり、前記レーザビーム(46)が、前記金属酸化物材料のレーザアブレーションを起こすのに十分な100メガワット/cm2〜10ギガワット/cm2の範囲のピークパワー密度により特徴付けられる、方法。 - キャビティ補修ステップの前に少なくとも1つの追加の処理ステップを前記基材(64)に対して実施し、前記追加の処理ステップがレーザ洗浄ステップを含む、請求項9記載の方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/645,501 | 2009-12-23 | ||
US12/645,501 US9061375B2 (en) | 2009-12-23 | 2009-12-23 | Methods for treating superalloy articles, and related repair processes |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2011131276A JP2011131276A (ja) | 2011-07-07 |
JP5947482B2 true JP5947482B2 (ja) | 2016-07-06 |
Family
ID=43566940
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2010278692A Expired - Fee Related JP5947482B2 (ja) | 2009-12-23 | 2010-12-15 | 超合金製品を処理する方法及び関連する補修プロセス |
Country Status (7)
Country | Link |
---|---|
US (1) | US9061375B2 (ja) |
JP (1) | JP5947482B2 (ja) |
BR (1) | BRPI1005765B1 (ja) |
CA (1) | CA2724620C (ja) |
DE (1) | DE102010061465A1 (ja) |
GB (1) | GB2476551B (ja) |
SG (2) | SG192425A1 (ja) |
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US9434025B2 (en) | 2011-07-19 | 2016-09-06 | Pratt & Whitney Canada Corp. | Laser drilling methods of shallow-angled holes |
US8893381B2 (en) | 2011-08-17 | 2014-11-25 | General Electric Company | Rotor seal wire groove repair |
US20130082446A1 (en) * | 2011-09-30 | 2013-04-04 | General Electric Company | Method of repairing rotating machine components |
US10076811B2 (en) | 2011-11-03 | 2018-09-18 | Siemens Energy, Inc. | Structural braze repair of superalloy component |
US9273562B2 (en) * | 2011-11-07 | 2016-03-01 | Siemens Energy, Inc. | Projection resistance welding of superalloys |
US9186740B2 (en) | 2011-11-07 | 2015-11-17 | Siemens Energy, Inc. | Projection resistance brazing of superalloys |
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-
2009
- 2009-12-23 US US12/645,501 patent/US9061375B2/en active Active
-
2010
- 2010-12-03 BR BRPI1005765-0A patent/BRPI1005765B1/pt not_active IP Right Cessation
- 2010-12-09 CA CA2724620A patent/CA2724620C/en not_active Expired - Fee Related
- 2010-12-10 GB GB1020907.0A patent/GB2476551B/en active Active
- 2010-12-13 SG SG2013048095A patent/SG192425A1/en unknown
- 2010-12-13 SG SG2010092468A patent/SG172569A1/en unknown
- 2010-12-15 JP JP2010278692A patent/JP5947482B2/ja not_active Expired - Fee Related
- 2010-12-22 DE DE102010061465A patent/DE102010061465A1/de active Pending
Also Published As
Publication number | Publication date |
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GB2476551B (en) | 2017-11-29 |
GB2476551A (en) | 2011-06-29 |
GB201020907D0 (en) | 2011-01-26 |
SG172569A1 (en) | 2011-07-28 |
BRPI1005765B1 (pt) | 2018-03-20 |
CA2724620A1 (en) | 2011-06-23 |
CA2724620C (en) | 2017-09-05 |
JP2011131276A (ja) | 2011-07-07 |
BRPI1005765A2 (pt) | 2015-10-20 |
BRPI1005765A8 (pt) | 2018-01-09 |
US9061375B2 (en) | 2015-06-23 |
DE102010061465A1 (de) | 2011-07-21 |
SG192425A1 (en) | 2013-08-30 |
US20110168679A1 (en) | 2011-07-14 |
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