WO1996020059A1 - Method of machining a component of a bearing, an electrode for electrochemically machining said component and a method of manufacturing an electrode - Google Patents

Method of machining a component of a bearing, an electrode for electrochemically machining said component and a method of manufacturing an electrode Download PDF

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Publication number
WO1996020059A1
WO1996020059A1 PCT/NL1996/000002 NL9600002W WO9620059A1 WO 1996020059 A1 WO1996020059 A1 WO 1996020059A1 NL 9600002 W NL9600002 W NL 9600002W WO 9620059 A1 WO9620059 A1 WO 9620059A1
Authority
WO
WIPO (PCT)
Prior art keywords
electrode
conducting
component
cylinder
spots
Prior art date
Application number
PCT/NL1996/000002
Other languages
French (fr)
Inventor
Frank Peter Wardle
Original Assignee
Skf Industrial Trading & Development Company B.V.
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 Skf Industrial Trading & Development Company B.V. filed Critical Skf Industrial Trading & Development Company B.V.
Publication of WO1996020059A1 publication Critical patent/WO1996020059A1/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
    • C25F3/00—Electrolytic etching or polishing
    • C25F3/02—Etching
    • C25F3/14—Etching locally
    • 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
    • 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
    • B23H9/00—Machining specially adapted for treating particular metal objects or for obtaining special effects or results on metal objects
    • 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
    • B23H9/008—Surface roughening or texturing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/58—Raceways; Race rings
    • F16C33/64—Special methods of manufacture
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/66—Special parts or details in view of lubrication
    • F16C33/6637—Special parts or details in view of lubrication with liquid lubricant
    • F16C33/664—Retaining the liquid in or near the bearing
    • F16C33/6651—Retaining the liquid in or near the bearing in recesses or cavities provided in retainers, races or rolling elements
    • 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
    • B23H2200/00—Specific machining processes or workpieces
    • B23H2200/10—Specific machining processes or workpieces for making bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/34—Rollers; Needles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/58—Raceways; Race rings
    • F16C33/583—Details of specific parts of races
    • F16C33/585—Details of specific parts of races of raceways, e.g. ribs to guide the rollers

Definitions

  • the present invention relates to a method of machin ⁇ ing a component of a bearing.
  • the object of the present invention is to further improve the performance of a component of a bearing, said com- ponent being a bearing ring and/or a roller.
  • the method according to the invention is characterized in that a texture is formed on the component.
  • the component may be the raceway of a bearing ring, and in case of roller bearings, the raceway and/or rollers. It has been found that a surface texture can influ ⁇ ence the lubrication of raceways, in which way it is possible to control the lubrication and thus improve properties like life-span.
  • the texture is formed by electrochemical machining.
  • Electrochemical machining offers a versatile way to form textures on a component of a bearing.
  • the invention also relates to an electrode for elec ⁇ trochemically machining said component in accordance with the invention.
  • an electrode is characterized in that the electrode has a cylindrical shape, the cylindrically shaped surface of said electrode being covered with electrically con ⁇ ducting spots forming a texture pattern.
  • the invention relates to a method of manu- facturing an electrode.
  • the method is character ⁇ ized in that an electrically conducting brush with radially extending, conducting bristles is treated with non-conducting material such that the bristles are covered over their length with non-conducting material, whereas the radially extending end faces of the bristles are free of non-conducting material and the end faces determine a cylindrically shaped electrode.
  • the method is charac ⁇ terized in that an electrically conducting cylinder is coated with a non-conducting film, leaving spots on the surface of the conducting cylinder uncoated to provide a texture pattern.
  • a further method of manufacturing an electrode accor ⁇ ding to the invention is characterized by coating an electri ⁇ cally conducting cylinder with a non-conducting film, and removing non-conducting film locally to create uncoated spots on the surface of the conducting cylinder to provide a texture pattern.
  • an electrode according to the invention is characterized in that an elec- trically conducting cylinder is provided with spots of etching resistant material, the cylinder is etched and subsequently provided with a non-conducting film after which the spots of etching-resistant material are removed, exposing the electri ⁇ cally conducting cylinder.
  • Fig. 1 is a perspective view of an electrode with a texture pattern.
  • Fig. 2 is a side view of another embodiment of the electrode.
  • Fig. 3 is a schematic view of the electrochemical machining of a raceway of a bearing ring.
  • Fig. 1 shows an electrode 1 with a pattern on its surface consisting of electrically conducting spots 2.
  • spot is meant any local element, whether circular, linear or cross-hatched etc., in or protruding from the surface of the electrode 1.
  • the electrode 1 may be an electrically conducting cylinder, which cylinder is covered over its surface with an electrically non-conducting layer, leaving spots 2 of the electrically conducting body exposed.
  • Fig. 2 shows the electrode 1 shown in Fig. 1 provided over the circumference of the cylinder with ribs 3, 3' to form, together with the component 4 here a raceway 4, and the cylindrically shaped surface of the electrode 1, a narrow gap 6 for passing electrolyte during electrochemical machining.
  • the electrode 1 shown in Fig. 1 provided over the circumference of the cylinder with ribs 3, 3' to form, together with the component 4 here a raceway 4, and the cylindrically shaped surface of the electrode 1, a narrow gap 6 for passing electrolyte during electrochemical machining.
  • Fig. 3 shows schematically a method of electrochemi- cally machining the raceway 4 of a bearing ring 5.
  • the bearing ring 5 may be a bearing ring 5 for any type of bearing.
  • the bearing ring 5 and the electrode 1 together form a gap 6 through which electrolyte A is passed, delivered by a nozzle 7.
  • the electrode 1 and the bearing ring 5 are rotated in relation to each other.
  • the relative speed is preferably such that the speed in metres per second is equal there where the distance between the spot 2 on the electrode 1 and the raceway 4 is at a minimum.
  • the embodiment of the electrode shown in Fig. 2 it is simple to synchronize the motion if the ribs 3, 3' are adjacent to the raceway 4 of the bearing ring 5 and the height of the ribs 3, 3' is small compared with the radius of the electrode 1.
  • an electrode 1 can be manufactured starting with an electrically conducting brush, for example a metal brush, with radially extending, conducting bristles.
  • the brush is embedded in a non-conducting resin and subsequently honed to a cylinder, with the end faces of the bristles exposed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

The invention relates to a method of machining a raceway of a bearing ring and/or a roller of a roller bearing to provide the raceway or roller with a texture pattern. This texture pattern has beneficial effects on the lubrication of a bearing comprising the machined raceways or rollers. Machining is preferably performed by an electrochemical process. The invention also relates to an electrode suitable for the method according to the invention and method for manufacturing electrodes suitable for the machining of a raceway or roller.

Description

Method of machining a component of a bearing, an electrode for electroche ically machining said component and a method of manufacturing an electrode
The present invention relates to a method of machin¬ ing a component of a bearing.
In the state of the art it is known to improve the performance of a bearing comprising bearing rings by using bearing rings with machined raceways. This machining usually comprises the step of honing. It is also known to machine rollers for roller bearings.
The object of the present invention is to further improve the performance of a component of a bearing, said com- ponent being a bearing ring and/or a roller.
To this end the method according to the invention is characterized in that a texture is formed on the component.
The component may be the raceway of a bearing ring, and in case of roller bearings, the raceway and/or rollers. It has been found that a surface texture can influ¬ ence the lubrication of raceways, in which way it is possible to control the lubrication and thus improve properties like life-span.
According to a preferred embodiment the texture is formed by electrochemical machining.
Electrochemical machining offers a versatile way to form textures on a component of a bearing.
The invention also relates to an electrode for elec¬ trochemically machining said component in accordance with the invention. Such an electrode is characterized in that the electrode has a cylindrical shape, the cylindrically shaped surface of said electrode being covered with electrically con¬ ducting spots forming a texture pattern.
Moreover, the invention relates to a method of manu- facturing an electrode.
According to one embodiment, the method is character¬ ized in that an electrically conducting brush with radially extending, conducting bristles is treated with non-conducting material such that the bristles are covered over their length with non-conducting material, whereas the radially extending end faces of the bristles are free of non-conducting material and the end faces determine a cylindrically shaped electrode.
According to another embodiment the method is charac¬ terized in that an electrically conducting cylinder is coated with a non-conducting film, leaving spots on the surface of the conducting cylinder uncoated to provide a texture pattern.
A further method of manufacturing an electrode accor¬ ding to the invention is characterized by coating an electri¬ cally conducting cylinder with a non-conducting film, and removing non-conducting film locally to create uncoated spots on the surface of the conducting cylinder to provide a texture pattern.
Moreover, a method of manufacturing an electrode according to the invention is characterized in that an elec- trically conducting cylinder is provided with spots of etching resistant material, the cylinder is etched and subsequently provided with a non-conducting film after which the spots of etching-resistant material are removed, exposing the electri¬ cally conducting cylinder. The invention will now be elucidated with the aid of the drawing, illustrating the invention by way of example.
Fig. 1 is a perspective view of an electrode with a texture pattern.
Fig. 2 is a side view of another embodiment of the electrode.
Fig. 3 is a schematic view of the electrochemical machining of a raceway of a bearing ring.
Fig. 1 shows an electrode 1 with a pattern on its surface consisting of electrically conducting spots 2. With spot is meant any local element, whether circular, linear or cross-hatched etc., in or protruding from the surface of the electrode 1. The electrode 1 may be an electrically conducting cylinder, which cylinder is covered over its surface with an electrically non-conducting layer, leaving spots 2 of the electrically conducting body exposed.
Fig. 2 shows the electrode 1 shown in Fig. 1 provided over the circumference of the cylinder with ribs 3, 3' to form, together with the component 4 here a raceway 4, and the cylindrically shaped surface of the electrode 1, a narrow gap 6 for passing electrolyte during electrochemical machining. Thus it is possible to maintain a constant gap width and obtain consistent results.
Fig. 3 shows schematically a method of electrochemi- cally machining the raceway 4 of a bearing ring 5. The bearing ring 5 may be a bearing ring 5 for any type of bearing. The bearing ring 5 and the electrode 1 together form a gap 6 through which electrolyte A is passed, delivered by a nozzle 7. As shown by the arrows, the electrode 1 and the bearing ring 5 are rotated in relation to each other. The relative speed is preferably such that the speed in metres per second is equal there where the distance between the spot 2 on the electrode 1 and the raceway 4 is at a minimum. With the embodiment of the electrode shown in Fig. 2 it is simple to synchronize the motion if the ribs 3, 3' are adjacent to the raceway 4 of the bearing ring 5 and the height of the ribs 3, 3' is small compared with the radius of the electrode 1.
By way of example an electrode 1 can be manufactured starting with an electrically conducting brush, for example a metal brush, with radially extending, conducting bristles. The brush is embedded in a non-conducting resin and subsequently honed to a cylinder, with the end faces of the bristles exposed.

Claims

1. Method of machining a component of a bearing char- acterized in that a texture is formed on the component (4).
2. Method according to claim 1 characterized in that the texture is formed by electrochemical machining.
3. Method according to claim 2, characterized in that an electrode (1) is used having a texture pattern on its sur- face which pattern consists of electrically conducting spots (2) facing the component (4) to be machined.
4. Method according to claim 3, characterized the electrode (1) is cylindrical and the electrode (1) and the surface of the component (4) are rotated relatively to each other.
5. Method according to claim 4, characterized in that speed of the electrode (1) and the component (4) are equal where the distance between the electrode (1) and the component (4) is at a minimum.
6. Electrode for electrochemical machining according to any of the claims 2 to 5 of a component of a bearing, char¬ acterized in that the electrode (1) has a cylindrical shape, the cylindrically shaped surface of said electrode (1) being covered with electrically conducting spots (2) forming a tex- ture pattern.
7. Electrode according to claim 6, characterized in that at or near each end of the cylindrically shaped electrode (1) ribs (3, 3') are provided over the circumference of the cylinder (1) to form, together with the component (4) and the cylindrically shaped surface of the electrode (1) , a narrow gap (6) for passing electrolyte A during electrochemical machining.
S. Method of manufacturing an electrode according to claim 6 or 7, characterized in that an electrically conducting brush with radially extending, conducting bristles is treated with non-conducting material such that the bristles are covered over their length with non-conducting material, where¬ as the radially extending end faces of the bristles are free of non-conducting material and the end faces determine a cylindrically shaped electrode (1).
9. Method of manufacturing an electrode according to claim 8, characterized in that a resin is used as the non-con¬ ducting material which resin is used to embed the conducting bristles to form a solid cylindrical electrode (1) , removing any non-conducting resin at the radially extending end faces of the bristles.
10. Method of manufacturing an electrode according to claim 6 or 7, characterized in that an electrically conducting cylinder is coated with a non-conducting film, leaving spots (2) on the surface of the conducting cylinder uncoated to pro¬ vide a texture pattern.
11. Method of manufacturing an electrode according to claim 6 or 7, characterized by coating an electrically con¬ ducting cylinder with a non-conducting film, and removing non- conducting film locally to create uncoated spots (2) on the surface of the conducting cylinder to provide a texture pat¬ tern.
12. Method of manufacturing an electrode according to claim 6 or 7, characterized in that an electrically conducting cylinder is provided with spots of etching resistant material, the cylinder is etched and subsequently provided with a non¬ conducting film after which the spots of etching-resistant material are removed, exposing the electrically conducting cylinder (1) .
PCT/NL1996/000002 1994-12-28 1996-01-02 Method of machining a component of a bearing, an electrode for electrochemically machining said component and a method of manufacturing an electrode WO1996020059A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US36539594A 1994-12-28 1994-12-28
US08/365,395 1994-12-28

Publications (1)

Publication Number Publication Date
WO1996020059A1 true WO1996020059A1 (en) 1996-07-04

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998023405A1 (en) * 1996-11-28 1998-06-04 Loadpoint Limited Method and apparatus for forming recesses in a bearing surface
WO1998035779A1 (en) * 1997-02-14 1998-08-20 Skf Engineering And Research Centre B.V. Method of providing a metal bearing component with a pattern by electrochemical machining and an apparatus therefor
WO1999000213A1 (en) * 1997-06-26 1999-01-07 Hueck Engraving Gmbh Method and device for producing an embossed structure on an embossing tool used to shape the surface of pressed laminates
WO2003068440A1 (en) * 2002-02-15 2003-08-21 Minebea Co., Ltd. Method for manufacturing an electrode for the electrochemical machining of a workpiece and an electrode manufactured according to this method
WO2006010954A1 (en) * 2004-07-30 2006-02-02 Renishaw Plc Scale making method
TWI549768B (en) * 2014-12-03 2016-09-21 Metal Ind Res & Dev Ct Continuous electrochemical processing unit
WO2018052895A2 (en) 2016-09-16 2018-03-22 3M Innovative Properties Company Method of making a nanostructured cylindrical roll
CN109488694A (en) * 2018-12-26 2019-03-19 西安交通大学 A kind of lubricating method of the rolling bearing of Surface Texture auxiliary
CN113369607A (en) * 2021-06-09 2021-09-10 河南理工大学 Electrochemical machining device for synchronously realizing microstructures on inner surface of cylindrical workpiece and outer surface of cylindrical workpiece

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1812312A1 (en) * 1967-12-15 1970-02-26 Karl Marx Stadt Tech Hochschul Methods and tools for external cylindrical machining, especially by electrolytic grinding
US3776828A (en) * 1970-04-15 1973-12-04 United States Steel Corp Method of embossing the surface of a metal workpiece
FR2280476A1 (en) * 1974-08-01 1976-02-27 Skf Ind Trading & Dev METHOD OF MANUFACTURING AN ELECTRODE FOR THE ELECTROLYTIC MACHINING OF A DRAWING WITH GROOVES IN THE CURVED SURFACE OF A PART
US4711706A (en) * 1985-06-13 1987-12-08 Atlas Copco Aktiebolag Method of producing groove/land patterns for dynamic bearings
JPH06109021A (en) * 1992-09-30 1994-04-19 Ntn Corp Rolling bearing

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1812312A1 (en) * 1967-12-15 1970-02-26 Karl Marx Stadt Tech Hochschul Methods and tools for external cylindrical machining, especially by electrolytic grinding
US3776828A (en) * 1970-04-15 1973-12-04 United States Steel Corp Method of embossing the surface of a metal workpiece
FR2280476A1 (en) * 1974-08-01 1976-02-27 Skf Ind Trading & Dev METHOD OF MANUFACTURING AN ELECTRODE FOR THE ELECTROLYTIC MACHINING OF A DRAWING WITH GROOVES IN THE CURVED SURFACE OF A PART
US4711706A (en) * 1985-06-13 1987-12-08 Atlas Copco Aktiebolag Method of producing groove/land patterns for dynamic bearings
JPH06109021A (en) * 1992-09-30 1994-04-19 Ntn Corp Rolling bearing

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 018, no. 393 (M - 1643) 22 July 1994 (1994-07-22) *

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998023405A1 (en) * 1996-11-28 1998-06-04 Loadpoint Limited Method and apparatus for forming recesses in a bearing surface
KR100495339B1 (en) * 1997-02-14 2005-06-14 에스케이에프 엔지니어링 앤드 리서치 센터 비.브이. Method of providing a metal bearing component with a pattern by electrochemical machining and an apparatus therefor
US6245212B1 (en) 1997-02-14 2001-06-12 Skf Engineering And Research Centre B.V. Method of providing a metal bearing component with a pattern by electrochemical machining and an apparatus therefor
CN1112271C (en) * 1997-02-14 2003-06-25 Skf工程和研究中心有限公司 Method of providing metal bearing component with pattern by electrochemical machining and apparatus thereof
WO1998035779A1 (en) * 1997-02-14 1998-08-20 Skf Engineering And Research Centre B.V. Method of providing a metal bearing component with a pattern by electrochemical machining and an apparatus therefor
WO1999000213A1 (en) * 1997-06-26 1999-01-07 Hueck Engraving Gmbh Method and device for producing an embossed structure on an embossing tool used to shape the surface of pressed laminates
WO2003068440A1 (en) * 2002-02-15 2003-08-21 Minebea Co., Ltd. Method for manufacturing an electrode for the electrochemical machining of a workpiece and an electrode manufactured according to this method
WO2006010954A1 (en) * 2004-07-30 2006-02-02 Renishaw Plc Scale making method
TWI549768B (en) * 2014-12-03 2016-09-21 Metal Ind Res & Dev Ct Continuous electrochemical processing unit
WO2018052895A2 (en) 2016-09-16 2018-03-22 3M Innovative Properties Company Method of making a nanostructured cylindrical roll
CN109790639A (en) * 2016-09-16 2019-05-21 3M创新有限公司 The method for manufacturing nano-structured cylindricality roll
EP3512986A4 (en) * 2016-09-16 2020-05-13 3M Innovative Properties Company Method of making a nanostructured cylindrical roll
CN109488694A (en) * 2018-12-26 2019-03-19 西安交通大学 A kind of lubricating method of the rolling bearing of Surface Texture auxiliary
CN113369607A (en) * 2021-06-09 2021-09-10 河南理工大学 Electrochemical machining device for synchronously realizing microstructures on inner surface of cylindrical workpiece and outer surface of cylindrical workpiece
CN113369607B (en) * 2021-06-09 2022-06-28 河南理工大学 Electrochemical machining device for synchronously realizing microstructures on inner surface of cylindrical workpiece and outer surface of cylindrical workpiece

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