FR2440244A1 - Outil-electrode pour l'usinage electrochimique - Google Patents

Outil-electrode pour l'usinage electrochimique

Info

Publication number
FR2440244A1
FR2440244A1 FR7926545A FR7926545A FR2440244A1 FR 2440244 A1 FR2440244 A1 FR 2440244A1 FR 7926545 A FR7926545 A FR 7926545A FR 7926545 A FR7926545 A FR 7926545A FR 2440244 A1 FR2440244 A1 FR 2440244A1
Authority
FR
France
Prior art keywords
head
electrode
tool
duct
passage
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.)
Pending
Application number
FR7926545A
Other languages
English (en)
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.)
Centro Ricerche Fiat SCpA
Original Assignee
Centro Ricerche Fiat SCpA
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 Centro Ricerche Fiat SCpA filed Critical Centro Ricerche Fiat SCpA
Publication of FR2440244A1 publication Critical patent/FR2440244A1/fr
Pending 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
    • B23H9/006—Cavity sinking
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
    • F01L3/12—Cooling of valves
    • F01L3/14—Cooling of valves by means of a liquid or solid coolant, e.g. sodium, in a closed chamber in a valve
    • 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
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L2303/00—Manufacturing of components used in valve arrangements
    • F01L2303/01—Tools for producing, mounting or adjusting, e.g. some part of the distribution

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)

Abstract

CET OUTIL PEUT ETRE FIXE DANS LE MANDRIN D'UNE MACHINE-OUTIL ET COMPREND UNE TIGE 2 SUR LAQUELLE PEUT GLISSER AXIALEMENT UNE ELECTRODE FLEXIBLE 24 ET QUI PRESENTE INTERIEUREMENT UN CONDUIT 35 POUR AMENER UN FLUIDE ELECTROLYTIQUE A LA PIECE A USINER. L'EXTREMITE DE TRAVAIL DE L'OUTIL EST CONSTITUEE PAR UNE TETE DE GUIDAGE DETACHABLE 25 QUI DEFINIT UN PASSAGE DE GUIDAGE 43 PARTIELLEMENT EN ARC DE CERCLE POUR L'ELECTRODE, DE MEME QUE LES TRONCONS EXTREMES 39, 40 DU CONDUIT 35. L'ELECTRODE EST GUIDEE DE MANIERE QUE SON BOUT LIBRE 24A DEPASSE A PEU PRES RADIALEMENT DU SUPPORT FORME PAR LA TIGE 2 ET LA TETE 25, L'ANGLE ENTRE CE BOUT ET L'AXE DU SUPPORT ETANT DEFINI PAR LE RAYON DE COURBURE DU PASSAGE 43. LA TETE 25 PEUT ETRE REMPLACEE PAR AU MOINS UNE AUTRE TETE DONT LE PASSAGE 43 POSSEDE UN RAYON DIFFERENT. L'INVENTION EST NOTAMMENT APPLICABLE AU CREUSEMENT DE CAVITES EN FORME DE CHAMPIGNON DANS DES SOUPAPES POUR MOTEURS A COMBUSTION INTERNE.
FR7926545A 1978-10-30 1979-10-25 Outil-electrode pour l'usinage electrochimique Pending FR2440244A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT69489/78A IT1192336B (it) 1978-10-30 1978-10-30 Utensile ad elettrodo per lavorazioni ad asportazione elettrochimica

Publications (1)

Publication Number Publication Date
FR2440244A1 true FR2440244A1 (fr) 1980-05-30

Family

ID=11312243

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7926545A Pending FR2440244A1 (fr) 1978-10-30 1979-10-25 Outil-electrode pour l'usinage electrochimique

Country Status (5)

Country Link
US (1) US4250011A (fr)
DE (1) DE2943418A1 (fr)
FR (1) FR2440244A1 (fr)
GB (1) GB2034753B (fr)
IT (1) IT1192336B (fr)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2938402C2 (de) * 1979-09-22 1982-11-11 Daimler-Benz Ag, 7000 Stuttgart Kathode für das elektrochemische Metallabtrageverfahren
WO1986000840A1 (fr) * 1984-07-31 1986-02-13 Institut Elektroniki Imeni U.A. Arifova Akademii N Instrument a electrode et procedes pour realiser par decharge electrique des alesages dans des pieces
US4601803A (en) * 1985-02-11 1986-07-22 J. T. Slocomb Co. Electrochemical machining technique and apparatus
FR2585817B1 (fr) * 1985-08-05 1989-08-25 Framatome Sa Procede et dispositif de traitement de surface pour les echangeurs de chaleur
US5292072A (en) * 1990-03-29 1994-03-08 Cummins Engine Company, Inc. Fuel injectors and methods for making fuel injectors
US5192026A (en) * 1990-03-29 1993-03-09 Cummins Engine Company, Inc. Fuel injectors and methods for making fuel injectors
US5637239A (en) * 1995-03-31 1997-06-10 United Technologies Corporation Curved electrode and method for electrical discharge machining curved cooling holes
US6303193B1 (en) * 1998-11-05 2001-10-16 General Electric Company Process for fabricating a tool used in electrochemical machining
US6200439B1 (en) * 1998-11-05 2001-03-13 General Electric Company Tool for electrochemical machining
US6866769B2 (en) * 2001-11-14 2005-03-15 General Electric Company Drive head and ECM method and tool for making same
DE10318064B4 (de) * 2002-04-18 2014-11-13 Kohler Ecm-Technik Vorrichtung und Verfahren zum Herstellen einer Verbindungsbohrung zwischen einer Hauptbohrung und einer Nebenbohrung durch ECM-Senken
SG126867A1 (en) * 2005-04-22 2006-11-29 Asulab Sa Chemical etch assisted spark machining head
US7938951B2 (en) 2007-03-22 2011-05-10 General Electric Company Methods and systems for forming tapered cooling holes
US20080230396A1 (en) * 2007-03-22 2008-09-25 General Electric Company Methods and systems for forming turbulated cooling holes
US7964087B2 (en) * 2007-03-22 2011-06-21 General Electric Company Methods and systems for forming cooling holes having circular inlets and non-circular outlets
DE102010051871A1 (de) * 2010-11-22 2012-05-24 Märkisches Werk GmbH Verfahren zur Herstellung von Ventilen für den Gasaustausch und nach einem derartigen Verfahren hergestellte Ventile
DE102011077198A1 (de) * 2011-06-08 2012-12-13 Mahle International Gmbh Verfahren zum Herstellen eines metallischen Hohlventils mit verbesserter Kühlung
DE102012110016A1 (de) 2012-10-19 2014-04-24 Bernhard Wietrzynski Verfahren und Vorrichtung zum Herstellen einer Vertiefung mit Hinterschneidung
DE102014225618A1 (de) * 2014-12-11 2016-06-16 Mahle International Gmbh Verfahren zur Herstellung eines Hohlventils
DE102016200739A1 (de) * 2016-01-20 2017-07-20 Mahle International Gmbh Metallisches Hohlventil für eine Brennkraftmaschine eines Nutzkraftfahrzeugs
US10413983B2 (en) 2017-10-17 2019-09-17 United Technologies Corporation Method for electrochemical machining of complex internal additively manufactured surfaces
CN109865907B (zh) * 2019-04-12 2024-05-28 南京宁庆数控机床制造有限公司 一种电解加工机床

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2577644A (en) * 1943-04-09 1951-12-04 Thompson Prod Inc Apparatus for anodically treating internal surfaces
FR2258931A1 (fr) * 1974-01-30 1975-08-22 Rolls Royce
FR2347151A1 (fr) * 1975-10-02 1977-11-04 Euratom Procede d'electro-erosion et dispositif d'electrode pour la generation de cavites a l'interieur d'une piece metallique massive

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE553823A (fr) * 1955-12-30
US3696014A (en) * 1970-04-27 1972-10-03 Rolls Royce Electrolytic drilling

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2577644A (en) * 1943-04-09 1951-12-04 Thompson Prod Inc Apparatus for anodically treating internal surfaces
FR2258931A1 (fr) * 1974-01-30 1975-08-22 Rolls Royce
FR2347151A1 (fr) * 1975-10-02 1977-11-04 Euratom Procede d'electro-erosion et dispositif d'electrode pour la generation de cavites a l'interieur d'une piece metallique massive

Also Published As

Publication number Publication date
GB2034753B (en) 1983-05-05
GB2034753A (en) 1980-06-11
US4250011A (en) 1981-02-10
DE2943418A1 (de) 1980-05-08
IT1192336B (it) 1988-03-31
IT7869489A0 (it) 1978-10-30

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