US20120024717A1 - Method for producing a metal component - Google Patents

Method for producing a metal component Download PDF

Info

Publication number
US20120024717A1
US20120024717A1 US13/194,293 US201113194293A US2012024717A1 US 20120024717 A1 US20120024717 A1 US 20120024717A1 US 201113194293 A US201113194293 A US 201113194293A US 2012024717 A1 US2012024717 A1 US 2012024717A1
Authority
US
United States
Prior art keywords
cathode
metal component
electrolyte
component
manipulator element
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.)
Abandoned
Application number
US13/194,293
Other languages
English (en)
Inventor
Martin ROEBLITZ
Georg Schmidt
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.)
Leistritz Turbomaschinen Technik GmbH
Original Assignee
Leistritz Turbomaschinen Technik GmbH
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 Leistritz Turbomaschinen Technik GmbH filed Critical Leistritz Turbomaschinen Technik GmbH
Assigned to LEISTRITZ TURBOMASCHINEN TECHNIK GMBH reassignment LEISTRITZ TURBOMASCHINEN TECHNIK GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ROEBLITZ, MARTIN, SCHMIDT, GEORG
Publication of US20120024717A1 publication Critical patent/US20120024717A1/en
Abandoned legal-status Critical Current

Links

Images

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
    • 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
    • B23H11/00—Auxiliary apparatus or details, not otherwise provided for

Definitions

  • the invention relates to a method for machining a metal component which has a three-dimensional shape produced by removing and/or shaping material.
  • Metal components are machined or shaped using various methods in order to obtain a desired three-dimensional geometry.
  • Material-removing methods such as, for example, drilling, turning, milling, EDM (electrical-discharge machining) and ECM (electrochemical machining) or material-shaping methods such as, for example, stamping, pressing or forging are known. These methods normally serve for rough contouring, i.e. the three-dimensional shape is substantially fashioned by these working processes.
  • Superior component sections however, still have to be subjected to finish machining in order for any burrs, projections, edges, corners and the like to be removed, etc. This finish machining is effected in most cases by milling.
  • the problem addressed by the invention is therefore to specify a method which is intended for machining a metal component and makes possible finish machining of superior component sections even in the case of complex component geometry and difficult machinability of the component material.
  • one or more superior component sections to be electrochemically finish-machined by means of a nozzle-like cathode, via which an electrolyte is delivered into the working region, wherein the cathode or the metal component is moved freely in space by means of a manipulator element.
  • the finish machining of the superior component region or regions is effected by electrochemical machining, normally called ECM.
  • ECM electrochemical machining
  • a nozzle-like cathode via which the electrolyte is delivered directly into the working region. That is to say that the electrolyte is fed to the cathode and, at the tip of the nozzle-like cathode, flows directly onto the metal component (workpiece) to be finish-machined.
  • the application of a working voltage between metal component and cathode produces a process current which causes material to be removed.
  • the metal component itself here is anodically polarized.
  • the cathode itself is arranged on a manipulator element, preferably a multi-axis robot, preferably one having at least five motion axes, via which robot, with associated control device, the cathode can be moved freely (three-dimensionally) in space. That is to say that the cathode can be moved in any desired manner and can therefore also traverse any desired geometries.
  • a manipulator element preferably a multi-axis robot, preferably one having at least five motion axes, via which robot, with associated control device, the cathode can be moved freely (three-dimensionally) in space. That is to say that the cathode can be moved in any desired manner and can therefore also traverse any desired geometries.
  • the cathode itself is a very thin, narrow component having a diameter of only a few millimeters, it can consequently be moved even into extremely narrow, constricted component regions, and displaced there, via the robot. This in turn makes it possible even for components having a very complex geometry to be machined free of machining forces in superior, otherwise scarcely accessible regions.
  • the metal component can be moved freely (three-dimensionally) in space by means of the manipulator element, again preferably a multi-axis robot, preferably one having at least five motion axes; that is to say that, here, the metal component is moved in any desired manner relative to the thin cathode.
  • the invention is therefore based on the idea that there is spatially free relative mobility between cathode and metal component, and this relative mobility is realized by means of the manipulator element.
  • the electrochemical working process also enables a wide variety of different materials to be machined, that is to say that even materials which are difficult to machine using conventional working processes, because they are very difficult to cut, can be readily machined by ECM.
  • the method according to the invention therefore offers the possibility of being able to finish-machine any desired components or complex geometries virtually irrespective of the material used.
  • the manipulator element provided is a robot which should have preferably five motion axes, but it can equally also have six axes, thereby ultimately providing for even more degrees of freedom of movement.
  • This multi-axis configuration enables both translational movements in the three space directions and rotational movements about the space directions.
  • the movement is not restricted only to the cathode according to the first alternative of the invention or to the metal component according to the second alternative of the invention. Rather, it is also possible to move the metal component (with free mobility of the cathode) or the cathode (with free mobility of the metal component) in addition, that is to say to permit, for example, a translational movement, for example along one or more space axes, or to rotate said metal component or cathode, possibly in addition, about one or more space axes. That is to say that there are additional degrees of freedom of movement at the respectively other central working element, in addition to the movements which are possible via the manipulator element.
  • the cathode is a thin tube having a diameter of a few millimeters, provided it is round in cross section and delivers a round electrolyte stream.
  • an as it were “squeezed” cathode, which is longer than it is wide, or a hollow cathode having any other desired cross section can be used.
  • the geometry of the working region is defined according to the electrolyte stream geometry, for which reason the corresponding cathode geometry is selected according to the component section to be machined. In order for workpiece sections which are difficult to access to be reached more easily, curved or angled cathode embodiments can be used.
  • the essential process parameters are the distance between cathode and workpiece, the working voltage or the process current, the dwell time of the cathode above the location to be machined or the associated feed rate of the cathode relative to the metal component, and the composition and the volumetric flow of the electrolyte.
  • the working voltage which is applied between cathode and metal component and typically between 5V and 200V, or the process current flowing therebetween to be constant or pulsed and/or for the volumetric flow of the electrolyte to be between 10 and 1001/h.
  • the control of the robot that is to say the movement of the cathode for traversing the component geometry to be machined, is effected via a suitable control device which has a corresponding control program.
  • the control is based on a model of the component or of the component geometry, said model being stored in a suitable program which serves for the control.
  • the cathode or the metal component (depending on which is moved by the manipulator element), supported by the program, is moved along the component section to be machined.
  • an expedient development of the invention provides for the distance between the cathode and the surface of the metal component to be determined from the ratio of working voltage and process current and/or, as a function thereof, for the process sequence to be controlled by varying any desired abovementioned process parameter, e.g. the feed rate, it being possible for the feed to be constant or intermittent.
  • the working voltage and the process current are detected, and the cross-sectional area of the electrolyte stream and thus the working area are also known.
  • These variables in first approximation, have a clearly defined, formal relationship in accordance with Ohm's law, to the distance between the cathode and the surface of the metal component.
  • the removal depth and thus the working progress are therefore clearly linked to the aforesaid parameters.
  • Any desired parameter e.g. the dwell time of the cathode above the metal component surface or the feed rate of the cathode along the component surface, can therefore be set according to the continuously determined cathode spacing in such a way that the desired working result is achieved.
  • a gas curtain preferably an air curtain, laterally enclosing the electrolyte stream at least partly, preferably completely, is blown out via the cathode. That is to say that not only is the electrolyte stream delivered via the cathode but so too is a gas stream, which encloses the electrolyte stream preferably completely.
  • the electrolyte stream is delivered onto the component surface in a concentrated manner and is kept away from the vicinity of the working region by being “blown out”. This avoids the situation where adjacent surfaces are undesirably affected and therefore stray currents lead to undesirable removal in adjacent regions.
  • the nozzle itself is therefore of double-walled design, with an inner electrolyte passage and an outer air passage, which are connected to corresponding supply lines.
  • some other gas e.g. inert gas such as nitrogen or helium, can also be used for forming the gas curtain.
  • the method according to the invention is suitable in particular for machining components made of special (metallic and intermetallic, high-temperature) materials; it is primarily useful for the machining of metal components made of steels, titanium alloys and in particular nickel alloys, which are extremely difficult to cut.
  • a metal component which is in particular preferably to be machined with the method according to the invention is a component of a turbomachine, for example a casing component, but in particular a blade component.
  • Blade components which are especially difficult to machine and have a very complex geometry are integral rotors (“blisks”), guide vane clusters or guide vane rings, as are used, for example, in high-pressure compressors of a gas turbine.
  • integral rotors, guide vane clusters or guide vane rings are subject to stringent requirements, for which reason they consist either of a titanium alloy or high-temperature steel, but preferably of a nickel alloy.
  • the guide vane clusters and the guide vane rings have a very complex geometry, normally consisting of two shrouds, between which the twisted guide airfoils extend.
  • the distances between the airfoils go from a few millimeters up into the centimeter range.
  • the accessibility of the regions between the airfoils is greatly restricted.
  • the edges/corners or the transition surfaces in these regions require the finish machining according to the invention. If such a guide vane cluster or a guide vane ring is produced from solid material by cutting or other removal processes, this inevitably results in the finish machining, in particular in the region between the airfoils, involving considerable outlay.
  • the method according to the invention can be used in an especially advantageous manner, in particular if there are very small airfoil and shroud spacings. This is because, with the method according to the invention, the edges and surfaces present there in the region between two airfoils and/or the airfoils themselves can be readily machined, since the very thin, narrow cathode can be moved even into these extremely narrow regions, and positioned there with high precision, via the robot moving it in any desired manner in space.
  • the invention also relates to an apparatus for implementing the method, comprising a manipulator element in the form of a multi-axis, preferably five- or six-axis, robot, on which an ECM tool in the form of a nozzle-like cathode or a work holder holding the metal component is arranged, an electrolyte feed device for feeding the electrolyte from an electrolyte reservoir to the cathode, a process energy source connected to the cathode and the metal component, and a control device controlling the operation of the apparatus.
  • the cathode which of course is interchangeably arranged on a corresponding cathode holder on the robot, has a round, elongated or any other desired cross section; the desired cathode shape is dictated by the machining task.
  • curved or angled cathode embodiments are possible.
  • the cathode can be designed for delivering gas, in particular air, fed to it via a gas feed device, in the form of an air curtain laterally enclosing the electrolyte stream at least partly, preferably completely, said electrolyte stream discharging from the cathode.
  • the material removal is thereby concentrated on the working region, and the effect on adjacent zones can thereby be reduced.
  • the nozzle itself is therefore, for example, of double-walled design, with an inner electrolyte passage and an outer gas passage enclosing said electrolyte passage, said passages being connected to corresponding supply lines.
  • the work holder is additionally movable, preferably along or about a plurality of space axes, when the cathode is arranged on the manipulator element, or the cathode is additionally movable, preferably likewise along or about a plurality of space axes, when the work holder is arranged on the manipulator element. That is to say that two movement modalities are provided in the apparatus according to the invention, namely, firstly, the robot for moving the cathode or the work holder together with metal component and, secondly, also the work holder or the cathode, such that an adapted relative motion sequence between cathode (tool) and metal component (workpiece) can be set for the respective application.
  • a means for detecting the distance of the cathode from the component surface is provided.
  • This nozzle distance is a measure of the removal capacity and the removal depth and is clearly linked, in first approximation, in accordance with Ohm's law, to the process parameters working voltage, process current and cross-sectional area of the electrolyte stream, for which reason the detection of the distance is advantageous for the continuous monitoring of the working result.
  • the means in this respect is expediently the control device, which determines the distance. It is possible for any desired parameter, e.g. the dwell time of the cathode above the workpiece surface or the feed rate of the cathode along the component surface, to be set with reference to the detected distance in such a way that the desired working result is achieved.
  • the distance can also be determined by means of one or more distance sensors, the control device again controlling the operation, that is to say the relevant process parameters, in accordance with the measuring results from the sensor.
  • FIG. 1 shows a diagrammatic illustration, as a perspective view, of a guide vane cluster to be machined with the method according to the invention and the apparatus according to the invention
  • FIG. 2 shows a diagrammatic illustration of the apparatus according to the invention
  • FIG. 3 shows a diagrammatic illustration of the cathode/metal component working region.
  • FIG. 4 shows a diagrammatic illustration of the cathode movement
  • FIG. 5 shows a diagrammatic illustration of a cathode with a gas curtain laterally defining the electrolyte stream.
  • FIG. 1 shows, in the form of a perspective view, a metal component 1 in the form of a guide vane cluster 2 which for the purpose of forming a complete ring, is assembled with a plurality of such clusters to give a ring shape.
  • a guide vane cluster consists of two shrouds 3 , 4 and a multiplicity of airfoils 5 extending between said shrouds 3 , 4 .
  • the shrouds 3 , 4 and the airfoils 5 are fashioned from solid material by cutting and/or other removal processes.
  • the airfoils 5 have a complexly twisted geometry and are very closely spaced apart, i.e. there are only very narrow spaces 6 between the individual airfoils 5 .
  • the complex geometry consequently results in curved edge regions and curved surfaces in the transition between the airfoils 5 and the shrouds 3 , 4 or at the surfaces of the shrouds 3 , 4 and at the surfaces of the airfoils 5 themselves, which, after the metal component 1 or its sections (shrouds 3 , 4 , airfoils 5 ) have been pre-machined using appropriate working processes, have to be finish-machined using the method according to the invention.
  • the apparatus comprises a manipulator element 7 in the form of a multi-axis, preferably at least five-axis, robot 8 which carries a cathode 9 which serves for the ECM of the metal component 1 , which is arranged on a corresponding work holder 10 .
  • the cathode 9 is a nozzle-like, narrow tube which can be moved in any desired manner in space via the robot 8 , such that any desired three-dimensional structures can therefore be traversed and machined.
  • the work holder 10 In addition to the mobility of the cathode 9 , it is also possible for the work holder 10 to be movable, either translationally along one or more space axes or rotationally about one or more space axes, or both translationally and rotationally, as indicated by the motion arrows.
  • a liquid electrolyte for example an NaCl solution
  • the cathode 9 is delivered via the cathode 9 directly into the working region, for which reason the electrode 9 is embodied, as described, as a nozzle or tube.
  • an electrolyte reservoir 11 from which the electrolyte 12 is directed to the cathode 9 via a controlled pump 13 and a suitable electrolyte feed line 14 .
  • a connection box 15 Provided at the robot 8 is a corresponding connection box 15 , at which the line opens out and at which the cathode 9 is also interchangeably accommodated.
  • the volumetric flow of the electrolyte can be monitored via a flow meter 16 , and the fluid pressure can be monitored via a pressure gage 17 .
  • a temperature measuring device 18 , a heating controller 19 and a pH measuring instrument 20 and a conductivity measuring instrument 21 are provided in the electrolyte reservoir 11 in order to be able to correspondingly set or monitor the electrolyte properties.
  • the electrolyte collected after delivery via the cathode 9 is fed back into the electrolyte reservoir 11 by an electrolyte feed line 23 , i.e. a circuit is established.
  • the robot 8 and the work holder 10 are provided in an enclosure 24 , i.e. the apparatus is closed to this extent with regard to the working region.
  • the apparatus comprises a process energy source 26 , via which the working voltage and the process current can be applied.
  • the parameters are correspondingly monitored via an ammeter 27 and a voltmeter 28 .
  • a supply line 29 runs, once again, to the connection box 15 ; it makes contact with the cathode 9 .
  • the supply return line 22 leads from the metal component 1 back to the process energy source 26 . In the process, the circuit is closed by the electrolyte stream.
  • a gas supply in this case shown embodied as a compressed air supply, for example in the form of a compressor 30 , is provided, from which an air feed line 31 runs likewise to the connection box 15 .
  • This air feed line is connected in turn to the cathode, which is embodied as a double-walled tube.
  • the electrolyte is fed in the central passage; in the outer passage, an air curtain which encloses the electrolyte can be blown out via the fed compressed air.
  • a controlled restrictor valve 32 and a flow meter 33 via which the air flow can be measured, are provided in the air feed line 31 .
  • control device 34 controls the operation of the robot 8 , that is to say the free movement in space of the cathode 9 and the movement of the work holder 10 , if provided. It is of course also possible to control and monitor all the sub-components of the apparatus in FIG. 2 for the electrolyte and gas supply and the process energy source 26 (that is to say the regions A, B and C) via the control device 34 .
  • FIG. 3 shows, as a diagrammatic illustration, the tip of the cathode 9 in a sectional view.
  • the electrolyte 12 flows through the tubular, nozzle-like cathode 9 .
  • the anodically polarized metal component 1 for example the guide vane cluster 2 known from FIG. 1 , is at a distance from the cathode 9 .
  • the cathode 9 can be moved translationally in the three directions in space, just as it can also be moved rotationally about each of the three directions in space.
  • the robot 8 is accordingly activated for this purpose via the control device 34 . Control is based here on a stored model of the metal component 1 , which defines the surface along which the electrode 9 is to be moved.
  • the electrolyte 12 is conveyed through the nozzle-like or tubular cathode 9 and delivered to the metal component 1 .
  • An electric flow field 36 forms in the electrolyte stream 12 .
  • Electrochemical, locally limited metal removal takes place in the region 37 , i.e. a cavity forms in the metal component 1 .
  • the corresponding removal depth is obtained in accordance with the process parameters selected.
  • FIG. 4 shows, as a diagrammatic illustration, the movement of the cathode 9 , which, for example in the case of a round cross-sectional geometry, has a diameter of three millimeters and is at a distance of, for example, one millimeter from the original workpiece surface. It can be seen that a linear region 37 can be removed by a horizontal movement of the cathode 9 , as shown by the arrow P. Whereas only a movement along one space coordinate is shown in FIG. 4 , it is possible, as described, for the cathode 9 to be moved in any desired manner in space, i.e. the round edge regions of the guide vane cluster 2 shown in FIG. 1 or the three-dimensionally twisted airfoils 5 , etc., can be readily traversed in order to remove material there to the desired extent.
  • FIG. 5 shows a further embodiment of the cathode 9 , which is embodied as a double-walled tube.
  • the electrolyte 12 is directed in the central passage 38 .
  • the compressed air fed via the gas feed device, shown in FIG. 2 as air feed device 31 is discharged in the outer passage 39 .
  • a gas curtain 40 enclosing the electrolyte stream 12 all around is formed. This reduces the effect on adjacent metal component surfaces.
  • the cathode can of course also have an elongated cross section or any other desired cross section. It can have, for example, in the electrolyte passage, a length of 10 mm and a width of 3 mm, such that a long, but narrow, zone can be machined, which is expedient in particular for machining relatively large areas. If a gas curtain is present, the corresponding air passage has, of course, a corresponding geometry.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
US13/194,293 2010-07-29 2011-07-29 Method for producing a metal component Abandoned US20120024717A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010032701.8A DE102010032701B4 (de) 2010-07-29 2010-07-29 Verfahren und Vorrichtung zur Herstellung eines Metallbauteils
DE102010032701.8-34 2010-07-29

Publications (1)

Publication Number Publication Date
US20120024717A1 true US20120024717A1 (en) 2012-02-02

Family

ID=44912121

Family Applications (1)

Application Number Title Priority Date Filing Date
US13/194,293 Abandoned US20120024717A1 (en) 2010-07-29 2011-07-29 Method for producing a metal component

Country Status (4)

Country Link
US (1) US20120024717A1 (de)
EP (1) EP2412468A3 (de)
JP (1) JP2012030352A (de)
DE (1) DE102010032701B4 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160303637A1 (en) * 2013-12-09 2016-10-20 Magna International Inc. Tool For Hot Stamping And Method For Making The Tool
US9650905B2 (en) 2012-08-28 2017-05-16 United Technologies Corporation Singlet vane cluster assembly
US10137516B2 (en) 2014-09-11 2018-11-27 MTU Aero Engines AG Electrochemical machining of a workpiece
US11623290B2 (en) * 2018-10-05 2023-04-11 Raytheon Technologies Corporation Method of machining gas turbine engine components

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013206472A1 (de) 2013-04-11 2014-10-30 Gerhard Kohler Vorrichtung und Verfahren zur Herstellung eines Werkstücks mittels elektrochemischer Abtragung
JP6169635B2 (ja) * 2015-03-12 2017-07-26 ファナック株式会社 加工品（中子）の回収機能を有するワイヤ放電加工機
DE102016203229A1 (de) 2016-02-29 2017-08-31 Robert Bosch Gmbh Elektrodenanordnung und Verfahren zur elektrochemischen Bearbeitung eines metallischen Bauteils, insbesondere eines Kraftstoffinjektorgehäuses
CN106925853B (zh) * 2017-05-09 2018-08-31 吉林大学 一种夹丝器可变式线切割机器人
DE102017208783A1 (de) 2017-05-24 2018-11-29 Robert Bosch Gmbh Verfahren zum Nachbearbeiten eines Kanals in einem Werkstück

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1339544A (en) * 1970-04-25 1973-12-05 Secr Defence Electro-chemical machine
GB1363846A (en) * 1970-08-27 1974-08-21 Secr Defence Electrlytic drilling of branches from passages
CA1077432A (en) * 1976-03-15 1980-05-13 Roger K. Tyler Power supply for electrochemical machining
US4562391A (en) * 1983-06-08 1985-12-31 Inoue-Japax Research Incorporated Robotic positioning system
US20020165637A1 (en) * 2001-05-07 2002-11-07 Kelly Dillon Method for highly automated manufacture of metal parts
DE10355907A1 (de) * 2003-11-29 2005-06-30 Robert Bosch Gmbh Verfahren und Vorrichtung zum Erodieren kleiner Drosselbohrungen mit definierten hydraulischen Eigenschaften
FR2879949B1 (fr) * 2004-12-24 2008-08-01 Framatome Anp Sas Procede et dispositif d'usinage a distance par electroerosion d'une zone d'une paroi metallique d'une piece
US7394040B2 (en) * 2006-03-31 2008-07-01 General Electric Company Electromachining process and apparatus

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9650905B2 (en) 2012-08-28 2017-05-16 United Technologies Corporation Singlet vane cluster assembly
US20160303637A1 (en) * 2013-12-09 2016-10-20 Magna International Inc. Tool For Hot Stamping And Method For Making The Tool
US10137516B2 (en) 2014-09-11 2018-11-27 MTU Aero Engines AG Electrochemical machining of a workpiece
US11623290B2 (en) * 2018-10-05 2023-04-11 Raytheon Technologies Corporation Method of machining gas turbine engine components

Also Published As

Publication number Publication date
DE102010032701B4 (de) 2015-04-16
JP2012030352A (ja) 2012-02-16
EP2412468A2 (de) 2012-02-01
EP2412468A3 (de) 2012-06-13
DE102010032701A1 (de) 2012-02-02

Similar Documents

Publication Publication Date Title
US20120024717A1 (en) Method for producing a metal component
JP5789070B2 (ja) 分散形アーク電食
Ho et al. State of the art in wire electrical discharge machining (WEDM)
Kar et al. Electrode wear phenomenon and its compensation in micro electrical discharge milling: a review
Xu et al. A high efficiency electrochemical machining method of blisk channels
CN104625650B (zh) 冲击式水轮机转轮的制造工艺
JP4460279B2 (ja) ブレード付きディスクの多軸数値制御電気機械加工
Yan et al. Process planning and electrode wear compensation for 3D micro-EDM
Qu et al. Improving machining accuracy of electrochemical machining blade by optimization of cathode feeding directions
Qu et al. Wire electrochemical machining using reciprocated traveling wire
US20190151972A1 (en) Method And Device For Machining Shapes Using Electrical Machining
Kamaraj et al. Mathematical modeling and verification of pulse electrochemical micromachining of microtools
Jingtao et al. Improving profile accuracy and surface quality of blisk by electrochemical machining with a micro inter-electrode gap
Patel et al. A review of recent work in wire electrical discharge machining (WEDM)
CA2778272C (en) Tool compensation method and device
Özerkan et al. Design and implementation of an electrode feed rate control system in the electrochemical drilling process
Jain et al. Analysis of contoured holes produced using STED process
Tang et al. Cathode cross tank and return hole optimization design and experiment verification of electrochemical machining closed integral impeller outside flow channels
Gatto et al. Electrodischarge drilling performance on parts produced by DMLS
Pivkin et al. New method for detecting active infeed of cutting edge of end mills
JP4526325B2 (ja) 電解液ジェット加工方法
EP3560648A1 (de) Mikrobearbeitung
Zhu et al. Research on shaping law in electrochemical machining for the leading/trailing edge of the blade
CN110877104A (zh) 激光熔化沉积和射流电解组合加工方法和装置
EP4269011A1 (de) Gepulste elektrochemische bearbeitung von turbinenkomponenten

Legal Events

Date Code Title Description
AS Assignment

Owner name: LEISTRITZ TURBOMASCHINEN TECHNIK GMBH, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:ROEBLITZ, MARTIN;SCHMIDT, GEORG;REEL/FRAME:026792/0203

Effective date: 20110810

STCB Information on status: application discontinuation

Free format text: EXPRESSLY ABANDONED -- DURING EXAMINATION