EP0336066A2 - Meule de rectification en plongée - Google Patents

Meule de rectification en plongée Download PDF

Info

Publication number
EP0336066A2
EP0336066A2 EP89101782A EP89101782A EP0336066A2 EP 0336066 A2 EP0336066 A2 EP 0336066A2 EP 89101782 A EP89101782 A EP 89101782A EP 89101782 A EP89101782 A EP 89101782A EP 0336066 A2 EP0336066 A2 EP 0336066A2
Authority
EP
European Patent Office
Prior art keywords
grinding
grinding wheel
diamonds
diamond grains
axis
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.)
Granted
Application number
EP89101782A
Other languages
German (de)
English (en)
Other versions
EP0336066B1 (fr
EP0336066A3 (fr
Inventor
Hans-Robert Dr. Meyer
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.)
Saint Gobain Diamantwerkzeuge GmbH and Co KG
Original Assignee
Ernst Winter and Sohn Diamantwekzeuge GmbH and Co
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 Ernst Winter and Sohn Diamantwekzeuge GmbH and Co filed Critical Ernst Winter and Sohn Diamantwekzeuge GmbH and Co
Publication of EP0336066A2 publication Critical patent/EP0336066A2/fr
Publication of EP0336066A3 publication Critical patent/EP0336066A3/fr
Application granted granted Critical
Publication of EP0336066B1 publication Critical patent/EP0336066B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D7/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
    • B24D7/14—Zonally-graded wheels; Composite wheels comprising different abrasives

Definitions

  • the invention relates to a grinding wheel, in particular for deep grinding, with a two-part abrasive coating which contains fine-grained diamonds in one part and a second abrasive coating part which is formed on one side and contains coarser-grained diamonds.
  • a so-called roof profile forms on the effective grinding wheel surface over the course of the grinding wheel life.
  • the shape of the roof profile depends on the width of the grinding surface and the height of the grinding wheel infeed.
  • the main cutting work has to be done by the part of the grinding wheel grinding surface that initially engages in the feed direction, while the subsequent part largely determines the surface quality. Since the different surface sections of the grinding wheel therefore have different tasks it is known to design the parts of the grinding surface differently, taking into account the different loads, specifically with regard to the diamond grain sizes used in these sections and the concentration of diamonds.
  • a known circumferential grinding wheel carries fine-grained diamonds on its circumferential surface and a cup grinding wheel on its end surface, which are held in a bond which consists, for example, of a phenolic resin and copper.
  • a bond which consists, for example, of a phenolic resin and copper.
  • diamond grains of larger classification are arranged, while in the area which determines the surface quality, diamonds of smaller classification are embedded.
  • the areas have the same type of bond and the diamond grains are distributed stochastically according to their respective volumetric proportion in the bond.
  • the different abrasive coating zones are selected so that the grinding wheel with the covering part with a fine grain classification achieves the required surface quality, the covering part with a larger diamond classification does not break down under the resulting load at a given machining volume per unit of time and does not generate any impermissible forces and temperatures.
  • the covering width of 5 mm the division into a 3 mm wide covering zone for the fine-grained part and a 2nd mm wide covering zone for the coarse-grained part.
  • the object of the invention is to provide a grinding wheel with a small engagement width for deep grinding, which continuously has a very high diamond content in the outer edge region of the end face as protection against wear or rounding of this outer edge and at the same time brings about a high surface quality.
  • the abrasive coating of a grinding wheel on the front lying in the feed direction consists of a coating of diamond grains with a grain size of 150 to 400 micrometers, which in a circumferential disc one layer in the direction of the axis of rotation of the grinding wheel and multi-layer perpendicular to that Axis of rotation of the grinding wheel is formed, the diamond grains touching each other in z.
  • a galvanically deposited nickel bond are held, while in a cup grinding wheel the single-layer design of the diamond coating is aligned parallel to the axis of rotation.
  • the invention thus provides for the single-layer abrasive coating zone with coarse diamond and a wear-resistant bond to be assigned a zone with a fine-grained abrasive that is around 2-3 mm wide.
  • This part of the abrasive coating has the task of reducing the roughness of the workpiece surface.
  • the so trained grinding disc allows a high stock removal rate, whereby the abrasive coating zone with coarse diamond, which is crucial for the high stock removal rate, only intervenes with a small effective width and therefore implements the process principle, while a downstream part of the abrasive coating zone only reduces the roughness generated on the workpiece surface, without the process principle of to significantly influence the narrow engagement width to achieve high performance.
  • the grinding wheel according to the invention has the advantage that from the start of its use until it is completely used up, the load on an extremely high diamond portion of the end face is continuously absorbed by the extremely high proportion of diamond, so that no roof formations or bevels or roundings on this edge in Need to be bought. It shows that even with the greatest loads, such as deep grinding using the quick-point method, the wear on the outside of the grinding wheel is no greater than that of the exposed to a lower load, but also less resistant peripheral surface, so that the original profile is retained even after prolonged use and wear of the grinding wheel. Due to the fact that the relatively large diamond grains lie directly against one another in the outer edge area, not only is a long tool life achieved, but also because of the short life effective grinding wheel width also ensures a high stock removal rate with optimal grinding properties.
  • the intermediate layer consists of a metal which is part of the binding of the fine abrasive grains of the abrasive coating on the peripheral surface. If this bond consists, for example, of a phenolic resin with a copper powder, the intermediate layer should preferably consist of a powder-metallurgical copper layer. It is sufficient if the intermediate layer has a thickness of only 0.1 to 0.3 mm, as can be achieved in a sintering process in a form in which this intermediate layer and the binder with the fine-grained are simultaneously distributed small diamond is sintered.
  • FIG. 1 shows a grinding wheel 2 in its position relative to the workpiece 1 when grinding according to the quick-point method, in which there is an almost punctiform contact between these parts and thus a very high load on the grinding wheel 2.
  • the axis of the grinding wheel 2 is inclined at an angle ⁇ to the axis of the workpiece 1 and in the plan view according to the right part of FIG. 1 by an angle ⁇ , so that not only an inclined position exists within the drawing level, but also in spatial terms.
  • the feed of the grinding wheel 2 takes place according to the arrow 3, the arrow 3 'indicating the direction of advance.
  • the outer end face area of the grinding wheel is loaded.
  • This end face region is designated by 6 in FIG. 2, the grinding wheel 2 again being advanced in accordance with the arrow 3.
  • the surface quality of the workpiece 1 is generated by the peripheral surface 4, while the end surface 6 causes the material to be removed.
  • the grinding covering consists of two different parts.
  • Part 6 of the abrasive coating has larger diamond grains than that of part 5.
  • the diamonds are held on the front side in a loose distribution and at a distance from one another in a bond which consists of the same material as the bond of the abrasive coating 5 of the circumferential surface 4. This has the consequence that at a heavier load a "roof profile" 7 or a bevel on the outer edge of the grinding wheel must be accepted, which leads to a reduction in the removal rate and increase in the grinding forces of the tool.
  • FIGS. 4 and 5 which have a grinding surface 9 on the end face or peripheral side of the grinding wheel, which consists of a single covering made of large diamond grains 9 ', which is formed in one layer in the direction parallel to the axis of rotation of the grinding wheel and in multiple layers in the direction perpendicular to the axis of rotation of the peripheral grinding wheel according to FIG. 5 and vice versa for the cup grinding wheel according to FIG. 4.
  • the axis of rotation of the wheel runs parallel to the ground workpiece edge.
  • the circumferential surface of the grinding wheel is marked "4" in FIG.
  • the axis of rotation of the grinding wheel runs perpendicular to the ground workpiece edge.
  • the coarse-grained part of the covering is the peripheral surface of the grinding wheel and the grinding surface marked "4" is the end surface of the grinding wheel.
  • the feed direction runs parallel to the ground workpiece edge and is directed from left to right in FIG.
  • the individual abrasive grains 9 ' which have a size of 150 to 400 micrometers, are held in a galvanically deposited nickel bond 10, which allows an arrangement of the diamond grains 9' to each other, in which they touch directly.
  • a phenolic resin with nickel powder is provided, so that there is sufficient adhesion to the electroplated nickel for holding the diamond 9 '.
  • an intermediate layer 8 is provided in the embodiment according to FIG. 5 for better adhesion.
  • This intermediate layer 8 applied by powder metallurgy in the sintering process preferably consists of a metal which is also part of the bond of the abrasive coating 5. If, for example, this bond consists of a resin and a copper powder or steel powder, the intermediate layer 8 can also consist of copper or steel.
  • an electroplated nickel bond is not the only solution to bind a single-layer abrasive coating; rather, thin, sintered bonds are also possible. For example, let distribute a thin layer of bronze with coarse-grained diamond evenly on a surface of the form, if necessary compact slightly cold and then sprinkle a 3 mm thick layer on top of it, which may consist of a different bronze plus fine-grained diamond in a much lower concentration. Both could then be sintered.
  • synthetic resin bonds or with different bonds for the coarse-grained and the fine-grained zone of the abrasive coating The possibilities are therefore numerous, although the galvanic deposit is a preferable solution as a bond.
  • diamonds or diamond grains are generally mentioned above, it is understood that these can be natural or artificially produced diamonds, such as, for example, grains of cubic-crystalline boron nitride, which is equivalent in effect to the diamond grains.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
EP89101782A 1988-04-07 1989-02-02 Meule de rectification en plongée Expired - Lifetime EP0336066B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3811584 1988-04-07
DE3811584A DE3811584A1 (de) 1988-04-07 1988-04-07 Schleifscheibe zum tiefschleifen

Publications (3)

Publication Number Publication Date
EP0336066A2 true EP0336066A2 (fr) 1989-10-11
EP0336066A3 EP0336066A3 (fr) 1991-05-22
EP0336066B1 EP0336066B1 (fr) 1994-07-13

Family

ID=6351508

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89101782A Expired - Lifetime EP0336066B1 (fr) 1988-04-07 1989-02-02 Meule de rectification en plongée

Country Status (4)

Country Link
US (1) US5063714A (fr)
EP (1) EP0336066B1 (fr)
AT (1) ATE108358T1 (fr)
DE (2) DE3811584A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1637284A1 (fr) * 2004-09-17 2006-03-22 Toyoda Koki Kabushiki Kaisha Meule
WO2019114871A1 (fr) * 2017-12-14 2019-06-20 Schaeffler Technologies AG & Co. KG Procédé pour rectifier des éléments de roulement pour un palier à roulement et utilisation d'un procédé

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04141355A (ja) * 1990-09-28 1992-05-14 Toyoda Mach Works Ltd 研削方法
US5647790A (en) * 1994-12-22 1997-07-15 Sumitomo Heavy Industries, Ltd. Method for generating tooth surfaces of globoid worm wheel
DE19533836B4 (de) * 1995-09-13 2005-07-21 Ernst Winter & Sohn Diamantwerkzeuge Gmbh & Co. Profilschleifscheibe und Verfahren und Vorrichtung zur Herstellung
AU2002349498A1 (en) * 2001-12-13 2003-06-23 Nikon Corporation Grind stone and production method for optical element
DE102006035845A1 (de) 2006-08-01 2008-02-07 Erwin Junker Maschinenfabrik Gmbh Verfahren zum Schleifen einer Wendeschneidplatte und Schleifscheibe zur Durchführung des Schleifverfahrens
TWI454342B (zh) * 2010-08-16 2014-10-01 Saint Gobain Abrasives Inc 用於對超級磨料工件進行磨削之磨料物品
TWI453089B (zh) * 2010-08-16 2014-09-21 Saint Gobain Abrasives Inc 對包含超級磨料材料的工件進行磨削之方法
TW201504416A (zh) 2011-06-30 2015-02-01 Saint Gobain Abrasives Inc 磨料物品及製造方法
DE102013202509A1 (de) 2013-02-15 2014-08-21 Erwin Junker Grinding Technology A.S. Verfahren und schleifwerkzeug zum hochgenauen centerless-schleifen von wellenteilen mit hoher oberflächengüte
CN103406819B (zh) * 2013-08-23 2015-05-06 摩士集团股份有限公司 轴承密封槽成型切入磨削方法
JP6407773B2 (ja) * 2015-03-13 2018-10-17 日本碍子株式会社 ハニカム構造体の製造方法、及び研削用砥石
JP6629453B2 (ja) * 2016-08-10 2020-01-15 日本碍子株式会社 研削加工物の製法
US10639763B2 (en) 2017-11-14 2020-05-05 Ford Motor Company Method for journal finishing of crankshafts, camshafts, and journals

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB986427A (en) * 1961-07-13 1965-03-17 Eugene Fouquet High-performance grinding process, more particularly for the machining of metals of all degrees of hardness
FR2139489A5 (fr) * 1971-05-12 1973-01-05 De Beers Ind Diamond
FR2285213A1 (fr) * 1974-09-18 1976-04-16 De Beers Ind Diamond Corps abrasif, notamment pour la fabrication de meules
WO1984002300A1 (fr) * 1982-12-13 1984-06-21 Hale Engineering Inc Outils de coupe et d'abrasion

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GB530670A (en) * 1939-07-15 1940-12-17 John Robertson Brown Improvements in or relating to grinding or sharpening wheels
DE752952C (de) * 1940-09-29 1951-08-16 Finzler Verfahren zur elektrolytischen Bindung hochwertiger Schleifmittel, z. B. Diamantkoerner, in Metall zwecks Herstellung von Schleifwerkzeugen
US2728651A (en) * 1952-11-25 1955-12-27 Gen Electric Diamond abrasive wheel
DE1106636B (de) * 1953-02-18 1961-05-10 Carborundum Co Metallgebundener Schleifkoerper
US3067551A (en) * 1958-09-22 1962-12-11 Bethlehem Steel Corp Grinding method
US3121981A (en) * 1960-09-23 1964-02-25 Rexall Drug Chemical Abrasive wheels and method of making the same
DE1502646A1 (de) * 1965-08-12 1969-07-03 Naradi Narodni Podnik Verfahren zur Herstellung eines Diamantformwerkzeugs und danach hergestelltes Werkzeug
GB1181782A (en) * 1966-03-11 1970-02-18 Norton Abrasives Ltd Improvements relating to Grinding
US3691707A (en) * 1969-11-12 1972-09-19 Sola Basic Ind Semiconductor material cutting apparatus and method of making the same
US4180048A (en) * 1978-06-12 1979-12-25 Regan Barrie F Cutting wheel
SE8004172L (sv) * 1979-06-26 1980-12-27 Lippert H Gmbh Sliporgan for metallbearbetning
US4407263A (en) * 1981-03-27 1983-10-04 Diamond Giken Co., Ltd. Cutting blade
US4757645A (en) * 1982-09-30 1988-07-19 The Boeing Company cutting tool and method of making same
US4456516A (en) * 1983-05-12 1984-06-26 Westinghouse Electric Corp. Shaft rounding apparatus
JPS61100352A (ja) * 1984-10-22 1986-05-19 Toyota Banmotsupusu Kk 研削工具
US4561218A (en) * 1985-02-08 1985-12-31 Ex-Cell-O Corporation Close tolerance internal grinding using coolant mist
DE3706868A1 (de) * 1986-07-30 1988-02-11 Winter & Sohn Ernst Abrichtwerkzeug fuer schleifscheiben

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB986427A (en) * 1961-07-13 1965-03-17 Eugene Fouquet High-performance grinding process, more particularly for the machining of metals of all degrees of hardness
FR2139489A5 (fr) * 1971-05-12 1973-01-05 De Beers Ind Diamond
FR2285213A1 (fr) * 1974-09-18 1976-04-16 De Beers Ind Diamond Corps abrasif, notamment pour la fabrication de meules
WO1984002300A1 (fr) * 1982-12-13 1984-06-21 Hale Engineering Inc Outils de coupe et d'abrasion

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1637284A1 (fr) * 2004-09-17 2006-03-22 Toyoda Koki Kabushiki Kaisha Meule
WO2019114871A1 (fr) * 2017-12-14 2019-06-20 Schaeffler Technologies AG & Co. KG Procédé pour rectifier des éléments de roulement pour un palier à roulement et utilisation d'un procédé

Also Published As

Publication number Publication date
ATE108358T1 (de) 1994-07-15
US5063714A (en) 1991-11-12
EP0336066B1 (fr) 1994-07-13
DE58908024D1 (de) 1994-08-18
DE3811584A1 (de) 1989-10-19
EP0336066A3 (fr) 1991-05-22

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