IT1238201B - Metodo di fabbricazione mediante elettroerosione di una girante o di un rotore a una o piu' giranti di una turbopompa, particolarmente di una pompa turbomolecolare, e prodotti cosi' ottenuti. - Google Patents

Metodo di fabbricazione mediante elettroerosione di una girante o di un rotore a una o piu' giranti di una turbopompa, particolarmente di una pompa turbomolecolare, e prodotti cosi' ottenuti.

Info

Publication number
IT1238201B
IT1238201B IT06793889A IT6793889A IT1238201B IT 1238201 B IT1238201 B IT 1238201B IT 06793889 A IT06793889 A IT 06793889A IT 6793889 A IT6793889 A IT 6793889A IT 1238201 B IT1238201 B IT 1238201B
Authority
IT
Italy
Prior art keywords
rotor
tools
impeller
impellers
pump
Prior art date
Application number
IT06793889A
Other languages
English (en)
Other versions
IT8967938A1 (it
IT8967938A0 (it
Original Assignee
Varian Spa
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 Varian Spa filed Critical Varian Spa
Priority to IT06793889A priority Critical patent/IT1238201B/it
Publication of IT8967938A0 publication Critical patent/IT8967938A0/it
Priority to DE9090202808T priority patent/DE69000968T2/de
Priority to AT90202808T priority patent/ATE85923T1/de
Priority to EP90202808A priority patent/EP0426233B1/en
Priority to US07/608,141 priority patent/US5188514A/en
Priority to JP2295551A priority patent/JPH0755409B2/ja
Publication of IT8967938A1 publication Critical patent/IT8967938A1/it
Application granted granted Critical
Publication of IT1238201B publication Critical patent/IT1238201B/it
Priority to HK97101525A priority patent/HK1000008A1/en

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
    • B23H9/10—Working turbine blades or nozzles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D19/00—Axial-flow pumps
    • F04D19/02—Multi-stage pumps
    • F04D19/04—Multi-stage pumps specially adapted to the production of a high vacuum, e.g. molecular pumps
    • F04D19/042—Turbomolecular vacuum pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/02—Selection of particular materials
    • F04D29/023—Selection of particular materials especially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/321—Rotors specially for elastic fluids for axial flow pumps for axial flow compressors
    • F04D29/324—Blades
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/37—Impeller making apparatus
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49316—Impeller making
    • Y10T29/4932—Turbomachine making
    • Y10T29/49325—Shaping integrally bladed rotor

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Non-Positive Displacement Air Blowers (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
IT06793889A 1989-11-03 1989-11-03 Metodo di fabbricazione mediante elettroerosione di una girante o di un rotore a una o piu' giranti di una turbopompa, particolarmente di una pompa turbomolecolare, e prodotti cosi' ottenuti. IT1238201B (it)

Priority Applications (7)

Application Number Priority Date Filing Date Title
IT06793889A IT1238201B (it) 1989-11-03 1989-11-03 Metodo di fabbricazione mediante elettroerosione di una girante o di un rotore a una o piu' giranti di una turbopompa, particolarmente di una pompa turbomolecolare, e prodotti cosi' ottenuti.
DE9090202808T DE69000968T2 (de) 1989-11-03 1990-10-20 Verfahren zur herstellung eines schaufelrades oder eines rotors mit einem oder mehreren schaufeln fuer eine turbinenpumpe mittels funkenbearbeitung und dessen erzeugnisse.
AT90202808T ATE85923T1 (de) 1989-11-03 1990-10-20 Verfahren zur herstellung eines schaufelrades oder eines rotors mit einem oder mehreren schaufeln fuer eine turbinenpumpe mittels funkenbearbeitung und dessen erzeugnisse.
EP90202808A EP0426233B1 (en) 1989-11-03 1990-10-20 A process for manufacturing an impeller or a rotor having one or more blades for a turbine pump by means of electrical discharge machining, and articles so obtained
US07/608,141 US5188514A (en) 1989-11-03 1990-11-01 Process for manufacturing an impeller by electrical discharge machining and articles so obtained
JP2295551A JPH0755409B2 (ja) 1989-11-03 1990-11-02 １枚以上の羽根を有するタービンポンプ用インペラ又は回転子を放電加工を用いて製造する方法及びそれにより製造された装置
HK97101525A HK1000008A1 (en) 1989-11-03 1997-07-09 A process for manufacturing an impeller or a rotor having one or more blades for a turbine pump by means of electrical discharge machining and articles so obtained

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT06793889A IT1238201B (it) 1989-11-03 1989-11-03 Metodo di fabbricazione mediante elettroerosione di una girante o di un rotore a una o piu' giranti di una turbopompa, particolarmente di una pompa turbomolecolare, e prodotti cosi' ottenuti.

Publications (3)

Publication Number Publication Date
IT8967938A0 IT8967938A0 (it) 1989-11-03
IT8967938A1 IT8967938A1 (it) 1991-05-03
IT1238201B true IT1238201B (it) 1993-07-09

Family

ID=11306531

Family Applications (1)

Application Number Title Priority Date Filing Date
IT06793889A IT1238201B (it) 1989-11-03 1989-11-03 Metodo di fabbricazione mediante elettroerosione di una girante o di un rotore a una o piu' giranti di una turbopompa, particolarmente di una pompa turbomolecolare, e prodotti cosi' ottenuti.

Country Status (7)

Country Link
US (1) US5188514A (it)
EP (1) EP0426233B1 (it)
JP (1) JPH0755409B2 (it)
AT (1) ATE85923T1 (it)
DE (1) DE69000968T2 (it)
HK (1) HK1000008A1 (it)
IT (1) IT1238201B (it)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6206182B1 (en) * 1999-01-29 2001-03-27 Cwa, Inc. Co-injected labyrinth and contact seal for an idler roller assembly for a belt conveyor background of the invention
US6412173B1 (en) * 1999-07-26 2002-07-02 Phoenix Analysis And Design Technologies, Inc. Miniature turbomolecular pump
IT1319495B1 (it) * 2000-11-30 2003-10-20 Nuovo Pignone Spa Procedimento per la realizzazione di un rotore per compressoricentrifughi.
SE518806C2 (sv) * 2001-03-14 2002-11-26 Volvo Aero Corp Förfarande och anordning för framställning av en stator- eller rotorkomponent
EP1249612B1 (en) 2001-03-15 2004-01-28 VARIAN S.p.A. Method of manufacturing a stator stage for a turbine pump
US7204926B2 (en) * 2001-11-26 2007-04-17 General Electric Company Tandem blisk electrochemical machining
KR20040009436A (ko) * 2002-07-23 2004-01-31 현대모비스 주식회사 터보펌프용 터빈블레이드의 관통 방전가공법을 이용한제조방법
ITTO20020770A1 (it) * 2002-09-06 2004-03-07 Varian Spa Metod0 per fabbricare rotori di pompe da vuoto e prodotti
GB0304321D0 (en) * 2003-02-26 2003-04-02 Bladon Jets Ltd Fans and turbines
GB0420022D0 (en) * 2004-09-09 2004-10-13 Bladon Jets Ltd Fans and turbines
DE102004051854A1 (de) * 2004-10-26 2006-04-27 Mtu Aero Engines Gmbh Verfahren und Vorrichtung zur Herstellung integral beschaufelter Rotoren
DE102005014642A1 (de) * 2005-03-31 2006-10-05 Leybold Vacuum Gmbh Funkenerosionsanlage
EP1746290A1 (de) * 2005-07-20 2007-01-24 Rietschle Thomas Schopfheim GmbH Radialverdichter
US10189100B2 (en) 2008-07-29 2019-01-29 Pratt & Whitney Canada Corp. Method for wire electro-discharge machining a part
US8925201B2 (en) * 2009-06-29 2015-01-06 Pratt & Whitney Canada Corp. Method and apparatus for providing rotor discs
GB0917317D0 (en) * 2009-10-02 2009-11-18 Bladon Jets Ltd Rotary structures
KR102064786B1 (ko) * 2011-11-16 2020-01-10 바스프 에스이 샤프트에 기능적 요소를 연결하는 방법
US9162301B2 (en) 2012-08-06 2015-10-20 General Electric Company Electrochemical machining tools and methods
US8906221B2 (en) 2012-08-06 2014-12-09 General Electric Company Electrochemical grinding tool and method
FR3006925B1 (fr) * 2013-06-17 2016-01-15 Snecma Procede de realisation d'alveoles d'un disque de turbomachine
US20150354361A1 (en) * 2014-06-09 2015-12-10 General Electric Company Rotor assembly and method of manufacturing thereof
CN110977065B (zh) * 2019-10-31 2022-01-25 中国航发沈阳黎明航空发动机有限责任公司 一种整体叶盘电解成形旋转开形工装及电解成形方法

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2633776A (en) * 1948-08-14 1953-04-07 Kellogg M W Co Method of manufacturing turbine blades integral with turbine rotor
US3288699A (en) * 1964-02-12 1966-11-29 Ex Cell O Corp Apparatus for electrochemical shaping
BE757354A (fr) * 1969-10-27 1971-03-16 Sargent Welch Scientific Co Pompe turbomoleculaire a stators et rotors perfectionnes
DE2035063C3 (de) * 1970-07-15 1974-05-30 Arthur Pfeiffer-Vakuumtechnik Gmbh, 6330 Wetzlar Laufrad für eine Turbomolekularpumpe
DE2229724B2 (de) * 1972-06-19 1980-06-04 Leybold-Heraeus Gmbh, 5000 Koeln Turbomolekularpumpe
DE2717366B2 (de) * 1977-04-20 1979-10-11 Arthur Pfeiffer-Vakuumtechnik-Wetzlar Gmbh, 6334 Asslar Laufrad für eine Turbomolekularpumpe
DE2923632A1 (de) * 1979-06-11 1980-12-18 Leybold Heraeus Gmbh & Co Kg Verfahren zur herstellung eines schaufelkranzes fuer den rotor einer tubomolekularpumpe und mit schaufelkraenzen dieser art ausgeruesteter rotor
SU965689A1 (ru) * 1981-02-11 1982-10-15 Предприятие П/Я А-1495 Устройство дл электроэрозионного прошивани
FR2570970B1 (fr) * 1984-09-28 1994-06-03 Meon Fils Ets Procede d'usinage applique notamment aux augets de roues de turbine, les moyens et la machine de mise en oeuvre de ce procede.
DE3507274A1 (de) * 1985-03-01 1986-09-04 Arthur Pfeiffer Vakuumtechnik Wetzlar Gmbh, 6334 Asslar Scheiben mit schaufeln hoher stabilitaet fuer turbomolekularpumpen
WO1989006320A1 (en) * 1988-01-05 1989-07-13 Sholokhov Valery B Molecular vacuum pump
JPH0796166B2 (ja) * 1988-03-01 1995-10-18 エーピーシーエアロスペシャルティ株式会社 一体型翼車の電解加工方法および電解加工装置
JPH01271126A (ja) * 1988-04-20 1989-10-30 Mitsubishi Electric Corp 放電加工方法
JPH0261387A (ja) * 1988-08-24 1990-03-01 Seiko Seiki Co Ltd ターボ分子ポンプ

Also Published As

Publication number Publication date
JPH0755409B2 (ja) 1995-06-14
IT8967938A1 (it) 1991-05-03
US5188514A (en) 1993-02-23
HK1000008A1 (en) 1997-10-03
IT8967938A0 (it) 1989-11-03
ATE85923T1 (de) 1993-03-15
DE69000968T2 (de) 1993-06-09
EP0426233A1 (en) 1991-05-08
EP0426233B1 (en) 1993-02-24
DE69000968D1 (de) 1993-04-01
JPH03184726A (ja) 1991-08-12

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TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19971023