EP0254941B1 - Outil de dressage pour meules de rectification - Google Patents
Outil de dressage pour meules de rectification Download PDFInfo
- Publication number
- EP0254941B1 EP0254941B1 EP87110065A EP87110065A EP0254941B1 EP 0254941 B1 EP0254941 B1 EP 0254941B1 EP 87110065 A EP87110065 A EP 87110065A EP 87110065 A EP87110065 A EP 87110065A EP 0254941 B1 EP0254941 B1 EP 0254941B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- diamond
- dressing tool
- tool according
- layer
- diamond grains
- 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.)
- Expired - Lifetime
Links
- 238000000227 grinding Methods 0.000 title claims abstract description 26
- 239000010432 diamond Substances 0.000 claims abstract description 121
- 229910003460 diamond Inorganic materials 0.000 claims abstract description 100
- 229910052751 metal Inorganic materials 0.000 claims description 28
- 239000002184 metal Substances 0.000 claims description 28
- 239000010410 layer Substances 0.000 claims description 25
- 239000011241 protective layer Substances 0.000 claims description 18
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 14
- 229910052759 nickel Inorganic materials 0.000 claims description 7
- 239000010941 cobalt Substances 0.000 claims description 6
- 229910017052 cobalt Inorganic materials 0.000 claims description 6
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 6
- 238000005530 etching Methods 0.000 claims description 6
- 229910045601 alloy Inorganic materials 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 description 7
- 238000000576 coating method Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 5
- 150000002739 metals Chemical class 0.000 description 5
- 239000002347 wear-protection layer Substances 0.000 description 5
- 238000004663 powder metallurgy Methods 0.000 description 4
- 239000011148 porous material Substances 0.000 description 3
- 238000005245 sintering Methods 0.000 description 3
- 238000012876 topography Methods 0.000 description 3
- 229910000906 Bronze Inorganic materials 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 239000010974 bronze Substances 0.000 description 2
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 2
- 239000010431 corundum Substances 0.000 description 2
- 229910052593 corundum Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000006061 abrasive grain Substances 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B53/00—Devices or means for dressing or conditioning abrasive surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B53/00—Devices or means for dressing or conditioning abrasive surfaces
- B24B53/12—Dressing tools; Holders therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D18/00—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S76/00—Metal tools and implements, making
- Y10S76/12—Diamond tools
Definitions
- the invention relates to a dressing tool for grinding wheels, which carries a diamond coating on a base body, in which the diamonds are held in a metallic bond.
- Such dressing tools can be cylindrical or specially profiled dressing rollers, as well as disks or dressing tiles.
- Dressing is understood to mean the mechanical shaping of a rotating grinding wheel, the dressing tool being held or guided against the working surface of the grinding wheel in such a manner and producing a targeted output on the grinding wheel that the working surface of the grinding wheel is given a perfect concentricity.
- a certain profile can be generated in a corresponding manner on the working surface of the grinding wheel.
- the grinding wheel should often produce a certain roughness when grinding a workpiece on its surface.
- the degree of this roughness depends on the way in which the dressing process was carried out on the grinding wheel.
- the kinematic dressing conditions e.g. the feed speed of the dressing tool on the grinding wheel surface in the direction of the grinding wheel axis.
- the size of the diamond grain and the density of the diamond grain arrangement in the dressing tool also have a significant influence on the effective roughness depth of the grinding wheel.
- a simple but versatile form of a dressing tool contains the diamonds in a systematic or random arrangement in a flat plate, the so-called diamond coating.
- the diamond coating is connected to a base body, which enables attachment to the grinding machine or in a device provided for dressing.
- Such an embodiment of a dressing tool is referred to as a dressing tile.
- the edge of the diamond covering is brought into contact with the grinding wheel in a tangential arrangement, the diamond grains lying in the area of the edge and being exposed to the grinding wheel effecting the targeted drive on the grinding wheel.
- the diamond grains are located at certain distances from one another in the plate.
- the diamond grains can lie in one layer in one plane.
- Typical grain sizes of the diamond grains are between 0.5 mm and 1 mm. In cases where smaller diamond grains are used, they can also be stacked on top of each other.
- the abrasive grains of which are normally made of corundum or silicon carbide experience relatively little wear.
- the diamond grains must be held in place by the surrounding metallic bonding material so that they can offer sufficient resistance to the abrasive effect of the grinding wheel.
- the binder metal in which the diamond grains are embedded must therefore also have a very high wear resistance.
- Typical binding metals are alloys based on tungsten carbide and / or tungsten. When using less Wear-resistant binding materials, such as cobalt, nickel or bronze, cause a relatively rapid wear on these metals, so that the diamond grains embedded in them can fall out of the bond too quickly.
- the diamond grains in the dressing tool are also subjected to high thermal stresses due to the intense friction on the grinding wheel. Therefore diamond grits are selected for such dressing tools, which have a high thermal resistance.
- a disadvantage when using a metal bond based on tungsten or tungsten carbide is that relatively high sintering temperatures are required to produce this bond, which are in the range above 900 °, so that the sintered diamond grains more or be less thermally damaged.
- a similar process to the sintering of metal powder is the usual sintering in combination with a liquid metal impregnation.
- a manufacturing method in which the use of high temperatures is not required is the use of electrodepositable metal, e.g. Cobalt, nickel, bronze or copper.
- electrodepositable metal e.g. Cobalt, nickel, bronze or copper.
- these metals do not have a very high abrasion resistance.
- the invention provides that the diamond grains are artificially roughened so that their surface area is at least twice as large as compared to the natural surface, and that the diamond grains are arranged in such a density that the majority of them align with neighboring diamond grains touched.
- Such an artificially created surface topography enables an intimate anchoring of the diamond grains, in particular in an electrodepositable metal, since the metal is able to penetrate into the additional pores on the surface of the grains, which are preferably provided with undercuts. It is preferred for the topography of the surface if it has many relatively narrow depressions into which the metal can penetrate in a root-like manner, so that there is a mechanical connection between the binding metal and the diamond surface with great adhesive strength.
- Such can be achieved in particular in that the diamond grains are provided with a metal with pore-shaped depressions by etching.
- the thickness of the diamond coating influences the precision of a dressing process. Therefore, dressing tiles with a diamond coating thickness that is not greater than about 1 mm are particularly suitable.
- a suitable diamond grit has the grit size of e.g. D 711.
- Another variant of the dressing tools according to the invention is that diamond grain mixtures with different grain sizes are used to increase the density of the diamond grain arrangement, e.g. D 711 with D 501 or with D 181 or with D 46 or mixtures of several of these grain sizes.
- Example B shows the results with a tile which has a high diamond content of 0.8 carat, but without an artificially enlarged surface as in example C with the same diamond content as embodiment B, but with the surface increased according to the invention.
- these are tiles with a covering area of 10 mm x 15 mm and a working edge length of 10 mm as well as a diamond covering with a layer of diamond grains.
- FIG. 1 to 3 show a dressing tool 1 for a grinding wheel 2, which is designed in the manner of a dressing tile.
- the tool is provided with a holder 3 which carries a diamond plate 4.
- the diamond plate 4 consists of diamond grains 5 of the same grain size, which are arranged such that they touch directly on the diamond grains 5 lying next to them.
- the individual diamond grains 5, of which a diamond grain is shown in approximately 100 times magnification in FIG. 4, are artificially roughened, in particular by etching with a metal under the influence of heat.
- the surfaces of the individual diamond grain designed as a cubo-octahedron are thereby provided with numerous pores 7, which are designed as depressions with undercuts corresponding to FIG. 5.
- This increases the effective surface for holding the diamond grain within the bond by at least twice the natural surface size and the metal can penetrate into the individual pores in the manner of a root when galvanically applied, so that the adhesion is significantly improved.
- FIG. 6 shows the possibility of arranging a large number of diamonds in a layerless structure in which the individual diamonds or diamond grains are located touch with their diamond grains next to and above and below.
- a further increase in the proportion of diamond allows the use of diamond grains of different sizes according to FIG. 7, in which small diamonds lie in the gaps between the larger diamonds.
- the diamonds of the described embodiment are synthetic diamonds whose use is particularly suitable for tools according to the invention. However, this does not preclude the use of natural diamonds.
- a wear protection layer 10 on a diamond layer 4, which is preferably formed in a thickness of 0.1 to 1 mm and consists of diamonds which are bonded in a galvanically deposited metal such as colbalt or nickel preferably the surfaces of these diamonds in the wear protection layer 10 are enlarged by etching.
- the arrangement of protective layers made of hard materials is known in other fields of application.
- the protective layers are manufactured there using powder metallurgy.
- This has the disadvantage that a relatively large protective layer thickness cannot be undershot in order to achieve a uniform layer thickness in the outer protective region, since thicknesses of just 0.8 mm lead to powder metallurgical problems.
- a further disadvantage is that the diamond concentration in the process of powder metallurgy is procedurally strictly limited and that in practice a concentration of more than 60 or 2.6 carats / cubic centimeter has not been possible in practice.
- These disadvantages of the powder metallurgy process can be avoided by using a galvanic deposit such.
- Such precipitation allows the thickness of the side protective layer to be precisely limited so that, for example, layer thicknesses in the size of 0.2 to 1 mm can be used. It is possible, particularly for side protection, to significantly increase the diamond concentration to a concentration of 150 to 200, which is equivalent to 6.6 to 8.8 carats / cubic centimeter. Synthetic diamonds can be used for this, as can natural diamond grains, although there is generally a substantial improvement in the way the diamond grains are held within the electrodeposited layer if the diamonds have an increase in their surface area, preferably by etching, to preferably at least twice their natural size. which would not lead to any recognizable advantages in the case of a bond produced by powder metallurgy alone. It is particularly advantageous that particularly small grain sizes can be used, which are only about half the size of previously used grain sizes. This ensures an extremely tight fit of the previously treated diamonds in a galvanic bond, so that the degree of utilization for the high-quality diamond material improves.
- the wear protection layer 10 is arranged on the front and the back of the diamond layer and additionally on the other two sides, the diamond layer 5, 6 is protected against movements in all directions.
- FIGS. 9 and 10 show a dressing tile which has diamond grains 5 which are arranged in one layer. These diamond grains are artificially roughened and galvanically bonded in a metal 6. To protect the diamond grains 5, two protective layers 10 and 12 are provided, the thickness of which approximately corresponds to the thickness of the diamond layer 4, 5. The grain size of the diamond 5 is about 750 microns. The protective layers 10 and 12 are accordingly correspondingly strong. However, the protective layers consist of diamond grains of substantially smaller size, for example grains in the order of magnitude of 70 ⁇ m.
- the additional protective layers 10 and 12 prevent the binding of the effective diamonds 5 from being washed out laterally. This has the advantage that the individual diamonds 5 of the dressing tool can be used to a greater extent because they are held longer by the protective layers on both sides.
- the protective layers 10 and 12 thus result in an improvement in the mounting of the diamonds arranged in the middle, the mounting of which is in any case improved compared to comparable known arrangements by the artificial roughening of their surfaces and their galvanic bonding in an arrangement in which they touch one another directly .
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Grinding-Machine Dressing And Accessory Apparatuses (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Control Of Eletrric Generators (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Claims (15)
- Outil de dressage (1) pour meules de rectification (2) qui porte sur un corps de base une couche de diamants dans laquelle les diamants sont maintenus dans une liaison métallique (6), caractérisé en ce que les grains de diamants (5) sont rendus rugueux de manière artificielle de manière à ce que leur surface est agrandie d'au moins le double par rapport à la surface naturelle et que les grains de diamants (5) sont placés dans une densité telle que la plupart d'entre eux est en contact direct avec les grains de diamants (5) voisins.
- Outil de dressage selon la revendication 1, caractérisé en ce que les grains de diamants (5) sont pourvus d'évidements en forme de pores (7) par corrosion avec un métal.
- Outil de dressage selon la revendication 1, caractérisé en ce que la liaison métallique (6) est constituée par un métal déposé par électrolyse.
- Outil de dressage selon la revendication 3, caractérisé en ce que le métal de liaison (6) est constitué par du nickel ou du cobal ou une alliage de ceux-ci.
- Outil de dressage selon la revendication 1, caractérisé en ce que les grains de diamants (5) sont disposés en une seule couche plate.
- Outil de dressage selon la revendication 1, caractérisé en ce que les grains de diamants (5) sont disposés en étant directement superposés, les grains de diamants d'une couche s'engrenant entre les grains d'une autre couche et étant en contact direct avec les grains situés à côté, au-dessous et au-dessus.
- Outil de dressage selon la revendication 1, caractérisé en ce que les grains de diamants (5) sont de différente grosseur.
- Outil de dressage selon la revendication 1, caractérisé en ce que les grains de diamant (5) sont des diamants synthétiques.
- Outil de dressage selon la revendication 1, caractérisé en ce que l'outil (1) est configuré comme un carreau de dressage.
- Outil de dressage selon la revendication 1, caractérisé en ce que la couche de diamants (4) est équipée d'une couche de protection d'usure (10, 11, 12) d'une épaisseur de 0.1 à 1 mm dans laquelle les grains de diamants sont maintenus dans un métal déposé par électrolyse comme le cobalt ou le nickel.
- Outil de dressage selon la revendication 10, caractérisé en ce que les surfaces des grains de diamants de la couche de protection d'usure (10, 11) sont agrandies par corrosion.
- Outil de dressage selon la revendication 10, caractérisé en ce que la couche de protection d'usure présente une concentration de diamants de 5 à 10 carats par centimètre cube.
- Outil de dressage selon la revendication 10, caractérisé en ce que la couche de protection d'usure (10, 11) est placée sur la face frontale ou sur la face arrière de la couche de diamants (4).
- Outil de dressage selon la revendication 10, caractérisé en ce que la couche de protection d'usure (10, 11) est placée sur quatre côtés de la couche de diamants (4).
- Outil de dressage selon la revendication 10, caractérisé en ce que la couche de diamants est constituée par des diamants rendus rugueux à peu près de la même taille, à savoir de 500 à 1000 µm, qui sont placés en une couche et que les couches de protection (10, 11) sont formées d'une épaisseur à peu près semblable à la couche de diamants située au milieu et qu'elles sont composées de grains de diamants d'une taille jusqu'à 100 µm.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3625754 | 1986-07-30 | ||
DE3625754 | 1986-07-30 | ||
DE19873706868 DE3706868A1 (de) | 1986-07-30 | 1987-03-04 | Abrichtwerkzeug fuer schleifscheiben |
DE3706868 | 1987-03-04 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0254941A2 EP0254941A2 (fr) | 1988-02-03 |
EP0254941A3 EP0254941A3 (en) | 1989-07-05 |
EP0254941B1 true EP0254941B1 (fr) | 1992-01-29 |
Family
ID=25846058
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP87110065A Expired - Lifetime EP0254941B1 (fr) | 1986-07-30 | 1987-07-11 | Outil de dressage pour meules de rectification |
Country Status (19)
Country | Link |
---|---|
US (1) | US4805586A (fr) |
EP (1) | EP0254941B1 (fr) |
KR (1) | KR940011293B1 (fr) |
CN (1) | CN1008156B (fr) |
AT (1) | ATE72159T1 (fr) |
AU (1) | AU604732B2 (fr) |
BR (1) | BR8703906A (fr) |
CA (1) | CA1273801A (fr) |
DE (2) | DE3706868A1 (fr) |
DK (1) | DK168197B1 (fr) |
ES (1) | ES2029676T3 (fr) |
GR (1) | GR3004334T3 (fr) |
IL (1) | IL83266A (fr) |
IN (1) | IN169849B (fr) |
MX (1) | MX172003B (fr) |
PL (1) | PL155240B1 (fr) |
PT (1) | PT85459B (fr) |
RO (1) | RO101606B (fr) |
YU (1) | YU46063B (fr) |
Families Citing this family (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3625743A1 (de) * | 1986-07-30 | 1988-02-11 | Winter & Sohn Ernst | Verfahren zum bearbeiten von diamantkoernern |
US4915089A (en) * | 1988-01-28 | 1990-04-10 | General Electric Company | Tool for trueing and dressing a grinding wheel and method of use |
DE3811584A1 (de) * | 1988-04-07 | 1989-10-19 | Winter & Sohn Ernst | Schleifscheibe zum tiefschleifen |
US5146909A (en) * | 1990-12-28 | 1992-09-15 | The General Electric Company | Stationary fine point diamond trueing and dressing block and method of use |
US5447208A (en) * | 1993-11-22 | 1995-09-05 | Baker Hughes Incorporated | Superhard cutting element having reduced surface roughness and method of modifying |
WO2000006340A1 (fr) * | 1998-07-31 | 2000-02-10 | Norton Company | Outil de dressage rotatif contenant une couche de diamant brasee |
US6308700B1 (en) * | 1999-10-25 | 2001-10-30 | Dr Kaiser Co. | Process and manufacturing of a rotary diamond dresser for trueing and dressing of industrial grinding wheels |
DE10156661A1 (de) * | 2001-11-17 | 2003-06-05 | Saint Gobain Winter Diamantwer | Diamant-Formabrichtrolle und Verfahren zur Herstellung |
AU2002349498A1 (en) * | 2001-12-13 | 2003-06-23 | Nikon Corporation | Grind stone and production method for optical element |
US20050260939A1 (en) * | 2004-05-18 | 2005-11-24 | Saint-Gobain Abrasives, Inc. | Brazed diamond dressing tool |
US9095841B2 (en) * | 2006-08-02 | 2015-08-04 | Us Synthetic Corporation | Separation device and chemical reaction apparatus made from polycrystalline diamond, apparatuses including same such as separation apparatuses, and methods of use |
US7934978B2 (en) * | 2007-05-10 | 2011-05-03 | 1339513 Ontario Ltd. | Ice skate blade sharpening machine |
US8277284B2 (en) * | 2007-05-10 | 2012-10-02 | 1339513 Ontario Ltd. | Ice skate blade sharpening machines and associated method of dressing a grinding wheel |
US8056907B2 (en) * | 2008-05-02 | 2011-11-15 | 1339513 Ontario Ltd. | Ice skate blades |
US20090218287A1 (en) * | 2008-03-03 | 2009-09-03 | Us Synthetic Corporation | Solid phase extraction apparatuses and methods |
KR20110074532A (ko) * | 2008-09-16 | 2011-06-30 | 다이아몬드 이노베이션즈, 인크. | 독특한 특징부를 가지는 연마 입자 |
CN104531064A (zh) * | 2008-09-16 | 2015-04-22 | 戴蒙得创新股份有限公司 | 具有独特形貌的磨粒 |
US8652226B2 (en) | 2008-09-16 | 2014-02-18 | Diamond Innovations, Inc. | Abrasive particles having a unique morphology |
DE102009007992A1 (de) * | 2009-02-07 | 2010-08-19 | Ab Skf | Beschichtungsanordnung |
USD688343S1 (en) | 2009-03-12 | 2013-08-20 | 1339513 Ontario Ltd. | Flat bottom vee ice skate blade |
CN102470463B (zh) | 2009-07-31 | 2015-01-14 | 戴蒙得创新股份有限公司 | 包括表面改性的磨料颗粒的精密线材 |
JP5693144B2 (ja) * | 2010-10-27 | 2015-04-01 | 豊田バンモップス株式会社 | ロータリドレッサ |
USD665830S1 (en) | 2011-03-28 | 2012-08-21 | 1339513 Ontario Ltd. | Multiple spinner carousel for dressing a grinding wheel |
US20140057534A1 (en) * | 2011-04-18 | 2014-02-27 | 3M Innovative Properties Company | Resin bonded grinding wheel |
RU2490112C1 (ru) * | 2011-12-09 | 2013-08-20 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Ульяновский государственный технический университет" | Способ очистки эльборового шлифовального круга |
US10307891B2 (en) | 2015-08-12 | 2019-06-04 | Us Synthetic Corporation | Attack inserts with differing surface finishes, assemblies, systems including same, and related methods |
US10900291B2 (en) | 2017-09-18 | 2021-01-26 | Us Synthetic Corporation | Polycrystalline diamond elements and systems and methods for fabricating the same |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2716404A (en) * | 1951-06-02 | 1955-08-30 | Prec Diamond Tool Company | Diamond tool |
GB742957A (en) * | 1953-07-20 | 1956-01-04 | Super Cut | Diamond dressing tool |
GB856047A (en) * | 1957-01-10 | 1960-12-14 | Dagobert William Alfred Fritz | Improvements in diamond tools |
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SE305791B (fr) * | 1964-02-06 | 1968-11-04 | Diadur Ab | |
US3553905A (en) * | 1967-10-10 | 1971-01-12 | Jerome H Lemelson | Tool structures |
US3596649A (en) * | 1968-04-04 | 1971-08-03 | J K Smit & Sons Inc | Abrasive tool and process of manufacture |
DE2053125A1 (en) * | 1970-10-29 | 1972-05-04 | Winter & Sohn Ernst | Sintered diamond tool - with orientated metal embedded needle shaped diamonds |
US3894673A (en) * | 1971-11-04 | 1975-07-15 | Abrasive Tech Inc | Method of manufacturing diamond abrasive tools |
JPS5816988B2 (ja) * | 1978-03-31 | 1983-04-04 | 本田技研工業株式会社 | 円筒研削用砥石の製造方法 |
DE2848603A1 (de) * | 1978-11-09 | 1980-05-22 | Naxos Union Schleifmittel | Diamantplatten-abdrehwerkzeug fuer schleifscheiben |
GB2038214A (en) * | 1978-12-21 | 1980-07-23 | Dianite Coatings Ltd | Abrasive tool |
DE3016740A1 (de) * | 1980-04-30 | 1981-11-05 | Lach-Spezial-Werkzeuge Gmbh, 6450 Hanau | Abrichtwerkzeug |
US4407263A (en) * | 1981-03-27 | 1983-10-04 | Diamond Giken Co., Ltd. | Cutting blade |
DE3368886D1 (en) * | 1982-03-31 | 1987-02-12 | De Beers Ind Diamond | A method of making abrasive bodies |
US4629373A (en) * | 1983-06-22 | 1986-12-16 | Megadiamond Industries, Inc. | Polycrystalline diamond body with enhanced surface irregularities |
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-
1987
- 1987-03-04 DE DE19873706868 patent/DE3706868A1/de not_active Withdrawn
- 1987-07-11 DE DE8787110065T patent/DE3776448D1/de not_active Expired - Lifetime
- 1987-07-11 ES ES198787110065T patent/ES2029676T3/es not_active Expired - Lifetime
- 1987-07-11 EP EP87110065A patent/EP0254941B1/fr not_active Expired - Lifetime
- 1987-07-11 AT AT87110065T patent/ATE72159T1/de not_active IP Right Cessation
- 1987-07-21 IN IN518/MAS/87A patent/IN169849B/en unknown
- 1987-07-21 IL IL83266A patent/IL83266A/xx unknown
- 1987-07-28 DK DK393987A patent/DK168197B1/da not_active IP Right Cessation
- 1987-07-29 AU AU76228/87A patent/AU604732B2/en not_active Ceased
- 1987-07-29 RO RO129237A patent/RO101606B/ro unknown
- 1987-07-29 PL PL1987267065A patent/PL155240B1/pl unknown
- 1987-07-29 CA CA000543253A patent/CA1273801A/fr not_active Expired - Fee Related
- 1987-07-29 MX MX752587A patent/MX172003B/es unknown
- 1987-07-29 BR BR8703906A patent/BR8703906A/pt not_active IP Right Cessation
- 1987-07-30 KR KR1019870008359A patent/KR940011293B1/ko not_active IP Right Cessation
- 1987-07-30 US US07/079,835 patent/US4805586A/en not_active Expired - Lifetime
- 1987-07-30 YU YU143587A patent/YU46063B/sh unknown
- 1987-07-30 PT PT85459A patent/PT85459B/pt not_active IP Right Cessation
- 1987-07-30 CN CN87105212A patent/CN1008156B/zh not_active Expired
-
1992
- 1992-04-13 GR GR920400694T patent/GR3004334T3/el unknown
Also Published As
Publication number | Publication date |
---|---|
CA1273801A (fr) | 1990-09-11 |
BR8703906A (pt) | 1988-04-05 |
DK393987D0 (da) | 1987-07-28 |
ES2029676T3 (es) | 1992-09-01 |
IN169849B (fr) | 1991-12-28 |
IL83266A0 (en) | 1987-12-31 |
GR3004334T3 (fr) | 1993-03-31 |
KR880001372A (ko) | 1988-04-23 |
US4805586A (en) | 1989-02-21 |
CN1008156B (zh) | 1990-05-30 |
DE3706868A1 (de) | 1988-02-11 |
CN87105212A (zh) | 1988-03-30 |
DK168197B1 (da) | 1994-02-28 |
PL155240B1 (en) | 1991-10-31 |
DK393987A (da) | 1988-01-31 |
EP0254941A3 (en) | 1989-07-05 |
KR940011293B1 (ko) | 1994-12-05 |
ATE72159T1 (de) | 1992-02-15 |
EP0254941A2 (fr) | 1988-02-03 |
RO101606B (ro) | 1992-01-13 |
PT85459A (pt) | 1988-07-29 |
PL267065A1 (en) | 1988-07-07 |
PT85459B (pt) | 1993-07-30 |
DE3776448D1 (de) | 1992-03-12 |
AU604732B2 (en) | 1991-01-03 |
MX172003B (es) | 1993-11-29 |
AU7622887A (en) | 1988-02-04 |
IL83266A (en) | 1992-09-06 |
YU46063B (sh) | 1992-12-21 |
YU143587A (en) | 1990-04-30 |
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