EP3223987A1 - Procédé et dispositif d'enlèvement électrochimique de matière sur une pièce - Google Patents

Procédé et dispositif d'enlèvement électrochimique de matière sur une pièce

Info

Publication number
EP3223987A1
EP3223987A1 EP16700394.6A EP16700394A EP3223987A1 EP 3223987 A1 EP3223987 A1 EP 3223987A1 EP 16700394 A EP16700394 A EP 16700394A EP 3223987 A1 EP3223987 A1 EP 3223987A1
Authority
EP
European Patent Office
Prior art keywords
workpiece
electrolyte
electrolyte carrier
carrier
receptacle
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.)
Withdrawn
Application number
EP16700394.6A
Other languages
German (de)
English (en)
Inventor
Axel Arndt
Manuela Schneider
Martin Schäfer
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of EP3223987A1 publication Critical patent/EP3223987A1/fr
Withdrawn legal-status Critical Current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
    • B23H3/00—Electrochemical machining, i.e. removing metal by passing current between an electrode and a workpiece in the presence of an electrolyte
    • B23H3/04—Electrodes specially adapted therefor or their manufacture
    • 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
    • B23H3/00—Electrochemical machining, i.e. removing metal by passing current between an electrode and a workpiece in the presence of an electrolyte
    • B23H3/04—Electrodes specially adapted therefor or their manufacture
    • B23H3/06—Electrode material
    • 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
    • B23H7/00—Processes or apparatus applicable to both electrical discharge machining and electrochemical machining
    • B23H7/26—Apparatus for moving or positioning electrode relatively to workpiece; Mounting of electrode
    • 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

Definitions

  • the invention relates to a method for the electrical removal of material from a workpiece, in which an electrolyte carrier is impregnated with an electrolyte.
  • This electrolyte carrier for example a sponge or a brush, is then placed on the surface of the workpiece, wherein the workpiece comes into contact with the electrolyte.
  • a negative potential is applied to the electrolyte carrier with respect to the workpiece. This causes an electrolytic removal of material from the workpiece, which material is dissolved electrochemically. This is preferably done with metallic materials.
  • the invention relates to a device for the electrochemical removal of material from a workpiece.
  • This device has a receptacle for the workpiece.
  • Electrolyte carrier of a material impregnated with electrolyte material is provided, which can be placed on the surface of a workpiece provided in the receptacle.
  • a negative potential with respect to the workpiece can be applied to the electrolyte carrier.
  • This can be realized for example with an electrical connection point for a voltage source.
  • This voltage source can then be connected to the electrolyte carrier with the negative pole, while the positive pole of the voltage source can be connected to the surface of the workpiece located in the receptacle.
  • a method and a device of the type specified in the introduction are known, for example, from WO 2006/080948 A2 and from AU 2013242795 A1. Thereafter, devices for electrochemical removal with a brush or a
  • Sponge be equipped as an electrolyte carrier, wherein the electrolyte in these structures due to capillary forces can be sucked up. If these electrolyte carriers are then placed on a surface to be treated, this allows a transport of the electrolyte through the channels in the electrolyte carrier towards the surface to be treated.
  • a method for electrochemical removal on surfaces can be performed. For example, residues of a welding process, such as welding spatter, can be removed locally from the surface of a welded construction.
  • the object of the invention is to develop a method and a device for carrying out this method such that the quality of the result of the electrochemical removal can be improved.
  • the object is achieved by the device specified above according to the invention that between the receptacle and the electrolyte carrier, a mechanical coupling is provided which allows a relative movement with respect to at least one degree of freedom.
  • the positive pole of a voltage source can be connected to the workpiece and the negative pole of a voltage source to the electrolyte carrier.
  • the method specified above is set in motion, wherein the electrolyte carrier is soaked with an electrolyte.
  • the mechanical coupling of the electrolyte carrier and the workpiece is advantageously precisely defined by its clamping into the receptacle, which is why the ablation result can be accurately predicted by the carried out electrochemical removal (eg electropolishing).
  • FIG. 1 shows another embodiment of the device according to the invention in carrying out an embodiment of the method according to the invention as a side view and Figure 3 shows another embodiment of the device according to the invention during execution of an embodiment of the method according to the invention as a three-dimensional view.
  • a device for electrochemical removal according to FIG. 1 has a receptacle 11 into which a workpiece 12 can be inserted.
  • the workpiece 12 is provided with a hole 13 in the form of a hole, which is to be processed by the electrochemical ablation.
  • a cylindrical electrolyte carrier 14 in the form of a sponge is introduced from above into the bore.
  • the electrolyte carrier 14 is attached to a device 15, which has a linear guide 16 for vertical displacement.
  • the translational movement in the direction of the indicated double arrow 17 can also be used to produce a relative movement between the electrolyte carrier 14 and the workpiece 12.
  • the device is further equipped with a motor 24, which can put the supply line 18 in accordance with the indicated double arrow 25 in rotation.
  • a motor 24 can put the supply line 18 in accordance with the indicated double arrow 25 in rotation.
  • the electrolyte carrier 14, which surrounds the supply line 18 in an annular manner rotates about the axis of symmetry 30 of the supply line 18. This is another possibility for generating a relative movement between the electrolyte carrier 14 and the workpiece 12.
  • a shaft is to be machined as the workpiece 12.
  • the surface 27 of this shaft has at the ends of two areas that are to be used as treads and therefore should have a surface finish that is to be improved by the electrochemical removal (electropolishing). These subregions geometrically represent parts of cylinders 28.
  • the shaft has an annular groove 29 which is also to be reworked by electrochemical ablation.
  • the workpiece 12 is rotatably supported about its axis of symmetry 30 via the rod-shaped receptacle 11 in bearings 31.
  • the rotation is indicated by the double arrow 25 and is performed by the motor 26.
  • the device 15 is placed over the linear guide 16 from above on the circumference of the component 12, wherein three electrolyte carrier 14 in the form of sponges come into contact with the component 12. Two of these electrolyte carriers 14 carry material from the surface of the component 12 in the region of the cylinder 28.
  • the third electrolyte carrier 14 is adapted in its cross-section so that it fits exactly into the groove 29. In this way, both the groove flanks 32 and the groove base 33 can be processed simultaneously in the groove 29.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)

Abstract

L'invention concerne un procédé d'enlèvement électrochimique de matière sur une pièce (12). L'invention concerne par ailleurs un dispositif (15) qui est approprié pour l'enlèvement de matière. Selon l'invention, un mouvement relatif guidé mécaniquement est effectué entre la pièce (12) et un support d'électrolyte sous la forme d'une brosse ou d'une éponge (14), de sorte qu'un usinage précis de la surface est avantageusement possible dans des conditions prédéfinies. La surface à usiner peut être par exemple un alésage (13), auquel cas la brosse (14) est cylindrique et donc adaptée avec précision à la surface de l'alésage (13).
EP16700394.6A 2015-01-22 2016-01-07 Procédé et dispositif d'enlèvement électrochimique de matière sur une pièce Withdrawn EP3223987A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015201080.5A DE102015201080A1 (de) 2015-01-22 2015-01-22 Verfahren und Vorrichtung zum elektrochemischen Abtragen von Material von einem Werkstück
PCT/EP2016/050148 WO2016116292A1 (fr) 2015-01-22 2016-01-07 Procédé et dispositif d'enlèvement électrochimique de matière sur une pièce

Publications (1)

Publication Number Publication Date
EP3223987A1 true EP3223987A1 (fr) 2017-10-04

Family

ID=55129831

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16700394.6A Withdrawn EP3223987A1 (fr) 2015-01-22 2016-01-07 Procédé et dispositif d'enlèvement électrochimique de matière sur une pièce

Country Status (5)

Country Link
US (1) US20170368626A1 (fr)
EP (1) EP3223987A1 (fr)
CN (1) CN107206519A (fr)
DE (1) DE102015201080A1 (fr)
WO (1) WO2016116292A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3552746A1 (fr) 2018-04-10 2019-10-16 Siemens Aktiengesellschaft Dispositif d'usinage électrochimique sélectif de pièces à usiner et installation d'usinage d'une pièce à usiner au moyen d'un tel dispositif
EP3960348A1 (fr) * 2020-08-31 2022-03-02 Blueacre Technology Limited Dispositif et procédé pour l'usinage électrochimique d'une pièce à usiner
DE102022100587A1 (de) 2022-01-12 2023-07-13 Universität Stuttgart, Körperschaft Des Öffentlichen Rechts Verfahren und Vorrichtung zum Elektro- und/oder Plasmapolieren von additiv gefertigten Bauteilen
CN115476011B (zh) * 2022-09-27 2024-07-12 江苏中科云控智能工业装备有限公司 基于拖曳示教技术的压铸件去毛刺机器人机床

Family Cites Families (22)

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DE1496992A1 (de) * 1964-09-30 1969-08-14 Siemens Ag Verfahren zum elektrolytischen Polieren der Oberflaeche von insbesondere scheibenfoermigen Halbleiterkoerpern
GB1102996A (en) * 1965-06-14 1968-02-14 Cincinnati Milling Machine Co Electro-erosive machining apparatus
US4522692A (en) * 1983-07-26 1985-06-11 United Technologies Corporation Electrochemical machining a workpiece uniformly using a porous electrode
DE3521181A1 (de) * 1985-06-13 1986-12-18 Atlas Copco AB, Nacka, Stockholm Herstellung von nut/steg-bemusterungen in den lagerflaechen von dynamischen lagern
JPH0259216A (ja) * 1988-08-25 1990-02-28 C Uyemura & Co Ltd 研摩方法
DE4038584A1 (de) * 1990-12-04 1992-06-11 Wolfgang Mattiske Vorrichtung zum elektrochemischen signieren
US6592742B2 (en) * 2001-07-13 2003-07-15 Applied Materials Inc. Electrochemically assisted chemical polish
US6680454B1 (en) * 2002-12-27 2004-01-20 General Electric Company Electromachining with perforated electrodes
US7153777B2 (en) * 2004-02-20 2006-12-26 Micron Technology, Inc. Methods and apparatuses for electrochemical-mechanical polishing
WO2006080948A2 (fr) 2004-06-16 2006-08-03 Harrison, Sterling, T. Resistance a la corrosion de recipients de stockage pour dechets nucleaires
DE102004040217A1 (de) * 2004-08-19 2006-03-02 Mtu Aero Engines Gmbh Elektrode zum elektrochemischen Senken
DE102006060792A1 (de) * 2006-12-21 2008-06-26 Daimler Ag Vorrichtung zur elektrochemischen Bearbeitung komplexer rotationssymmetrischer Bearbeitungsgeometrien
US8597489B2 (en) * 2010-07-08 2013-12-03 General Electric Company Method, apparatus and system for flexible electrochemical processing
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CN102240835B (zh) * 2011-05-31 2013-08-14 清华大学 一种柴油发动机喷油嘴喷孔的电解加工方法及装置
CN202447774U (zh) * 2012-03-09 2012-09-26 董策舟 一种新型电化学去毛刺装备
KR101396845B1 (ko) * 2012-07-26 2014-05-20 주식회사 에이에스티젯텍 스트립 형태 부품의 전해 디플래시 장치
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Also Published As

Publication number Publication date
CN107206519A (zh) 2017-09-26
US20170368626A1 (en) 2017-12-28
DE102015201080A1 (de) 2016-07-28
WO2016116292A1 (fr) 2016-07-28

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