FR2258931B1 - - Google Patents

Info

Publication number
FR2258931B1
FR2258931B1 FR7502525A FR7502525A FR2258931B1 FR 2258931 B1 FR2258931 B1 FR 2258931B1 FR 7502525 A FR7502525 A FR 7502525A FR 7502525 A FR7502525 A FR 7502525A FR 2258931 B1 FR2258931 B1 FR 2258931B1
Authority
FR
France
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
Application number
FR7502525A
Other versions
FR2258931A1 (fr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rolls Royce PLC
Original Assignee
Rolls Royce PLC
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Rolls Royce PLC filed Critical Rolls Royce PLC
Publication of FR2258931A1 publication Critical patent/FR2258931A1/fr
Application granted granted Critical
Publication of FR2258931B1 publication Critical patent/FR2258931B1/fr
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
    • B23H9/00—Machining specially adapted for treating particular metal objects or for obtaining special effects or results on metal objects
    • B23H9/14—Making holes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2220/00—Application
    • F05B2220/30—Application in turbines
    • F05B2220/302—Application in turbines in gas turbines

Landscapes

  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
FR7502525A 1974-01-30 1975-01-28 Expired FR2258931B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4333/74A GB1495710A (en) 1974-01-30 1974-01-30 Apparatus and method for producing branch passages from an elongate passage in a workpiece

Publications (2)

Publication Number Publication Date
FR2258931A1 FR2258931A1 (fr) 1975-08-22
FR2258931B1 true FR2258931B1 (fr) 1980-07-04

Family

ID=9775200

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7502525A Expired FR2258931B1 (fr) 1974-01-30 1975-01-28

Country Status (6)

Country Link
US (1) US3995134A (fr)
JP (1) JPS50140992A (fr)
DE (1) DE2503059A1 (fr)
FR (1) FR2258931B1 (fr)
GB (1) GB1495710A (fr)
IT (1) IT1031211B (fr)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1569561A (en) * 1975-10-15 1980-06-18 Amchem Co Ltd Electrical discharge machining apparatus
GB1574143A (en) * 1976-04-15 1980-09-03 Rolls Royce Electro-discharge drilling machine tool
GB1583442A (en) * 1976-04-15 1981-01-28 Rolls Royce Method of and apparatus for controlling an electro-discharge drilling machine tool
IT1192336B (it) * 1978-10-30 1988-03-31 Fiat Spa Utensile ad elettrodo per lavorazioni ad asportazione elettrochimica
US4403129A (en) * 1980-03-06 1983-09-06 Amchem Company Limited Fluid actuated electrode clamp
US4476368A (en) * 1981-02-17 1984-10-09 Cammann Manufacturing Company, Inc. Inner wall tube disintegrator
JPS60186326A (ja) * 1984-03-06 1985-09-21 Brother Ind Ltd ワイヤ−カツト放電加工機におけるワイヤ−電極案内装置
DE3490750T1 (de) * 1984-07-31 1986-08-07 Institut elektroniki imeni U.A.Arifova Akademii Nauk Uzbekskoi SSR, Taškent, Akademgorodok Werkzeugelektrode zum elektroerosiven Lochen von Bohrungen in Werkstücken und Verfahren des elektroerosiven Lochens von Bohrungen in Werkstücken mittels dieser Werkzeugelektrode
US5029759A (en) * 1989-11-17 1991-07-09 Cummins Engine Company, Inc. Curved hole machining method and fuel injector formed thereby
DE4302633A1 (de) * 1993-01-30 1994-08-04 Abb Patent Gmbh Verfahren zur Herstellung einer Teilfuge im Turbinenbau
DE4428207A1 (de) * 1994-08-09 1996-02-15 Bmw Rolls Royce Gmbh Turbinen-Laufradscheibe mit gekrümmtem Kühlluftkanal sowie Herstellverfahren hierfür
DE19537658C2 (de) * 1995-09-13 1998-11-05 Bbc Reaktor Gmbh Einrichtung zum Heraustrennen einer Einheit aus einem Rohrboden mittels Funkenerosion
US6403910B1 (en) * 1999-12-14 2002-06-11 Hi-Tek Manufacturing, Inc. EDM apparatus and method for performing EDM operation
US6844518B1 (en) * 2003-12-22 2005-01-18 United Technologies Corporation Hole-drilling guide and method
JP4941113B2 (ja) * 2007-06-07 2012-05-30 株式会社デンソー 放電加工装置
JP5135896B2 (ja) * 2007-06-07 2013-02-06 株式会社デンソー 放電加工装置および放電加工方法
JP5135895B2 (ja) * 2007-06-07 2013-02-06 株式会社デンソー 放電加工装置
US20120132623A1 (en) * 2010-11-30 2012-05-31 Justice Jr Jimmy Roger Electrode holder
US9042425B2 (en) * 2011-02-18 2015-05-26 Leco Corporation Vacuum cleaning structure for electrode furnace
JP2015009292A (ja) * 2013-06-27 2015-01-19 株式会社エレニックス 細穴放電加工装置及び同装置を使用した細穴放電加工方法
EP3278916B1 (fr) * 2015-03-31 2023-06-14 Makino Milling Machine Co., Ltd. Machine à décharge électrique à trou fin
US10220461B2 (en) 2017-04-12 2019-03-05 General Electric Company Hole drilling elastically deformed superalloy turbine blade
US10774683B2 (en) 2017-04-12 2020-09-15 General Electric Company Hole drilling elastically deformed superalloy turbine blade
GB2576063A (en) 2018-08-02 2020-02-05 Univerza V Ljubljani Univ Of Ljublijana Apparatus and method for cutting an electrically conductive tube
CN108856920B (zh) * 2018-08-09 2019-09-03 上海交通大学深圳研究院 闭式整体叶盘电火花加工预孔抽液排屑方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB856674A (en) * 1958-06-18 1960-12-21 Rolls Royce Blades for gas turbine engines
US2942092A (en) * 1959-02-27 1960-06-21 Fred W Cammann Internal tube cutter
US3402279A (en) * 1965-07-31 1968-09-17 Sazhin Ivan Ivanovich Method of electroerosion machining of holes with a curvilinear axis
US3517153A (en) * 1967-06-07 1970-06-23 Raycon Corp Wire electrode holder assembly

Also Published As

Publication number Publication date
FR2258931A1 (fr) 1975-08-22
DE2503059A1 (de) 1975-07-31
US3995134A (en) 1976-11-30
GB1495710A (en) 1977-12-21
IT1031211B (it) 1979-04-30
JPS50140992A (fr) 1975-11-12

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Legal Events

Date Code Title Description
CA Change of address
CD Change of name or company name
ST Notification of lapse