EP2403684A1 - Schleifstift - Google Patents
SchleifstiftInfo
- Publication number
- EP2403684A1 EP2403684A1 EP10705376A EP10705376A EP2403684A1 EP 2403684 A1 EP2403684 A1 EP 2403684A1 EP 10705376 A EP10705376 A EP 10705376A EP 10705376 A EP10705376 A EP 10705376A EP 2403684 A1 EP2403684 A1 EP 2403684A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- grinding
- abrasive grains
- abrasive
- pin according
- base body
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D5/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
- B24D5/02—Wheels in one piece
-
- 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
- B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
Definitions
- the invention relates to a grinding pin for the machining of workpieces made of metal, in particular cast metal, comprising a base body with an effective grinding on the outer surface grinding area for grinding the workpiece and having a shaft for clamping the tool in the collet of a machine.
- the invention also relates to a method of manufacturing the tool and specific uses of the tool.
- Abrasive pins for abrasive machining ie for more or less rough grinding of different materials, are known per se.
- ceramic and synthetic resin-bonded grinding sticks are offered in different grain types, particle sizes and degrees of hardness.
- Grinding pins of different geometric shapes and with different shaft geometries are also used in mold making or in foundries, wherein the overall geometry of the grinding pin is adapted to the conditions on the workpiece to be machined. Usually, these tools are clamped by means of their shank in the collet of freehand machines or in stationary machines.
- the object of the present invention is now to propose grinding pins that offer great flexibility in terms of the shape of the workpiece to be machined with increased life.
- the basic idea of the invention is to provide a base body made of metal for the grinding pins and to cover its surface with abrasive grains, this surface covering being held on the surface by integral joining, in particular by soldering, gluing, coating and / or electroplating.
- BSL brazed single layer
- the abrasive grain is not completely integrated into the metal matrix as with sintered or laser-welded abrasives.
- the diamond abrasive grains are instead clearly recognizable and correspondingly effective.
- the Grinding pins according to the invention are therefore of particularly open-loop structure.
- the grinding pins according to the invention which are especially processed by means of BSL, are distinguished by their special properties: A particularly outstanding feature is an increased service life of the grinding pins, which can be achieved due to the low wear and high cutting power. Compared to the known grinding pins life is many times higher. Another major advantage of the low wear is that the grinding pins can be used flexibly. Finally, it is not so much to be feared that the surfaces are worn unevenly by a non-flat edition.
- the grinding pins according to the invention are characterized by a high edge stability.
- the individual pin shapes such as approximated cylinders, cones, ellipsoids or combinations of these shapes, can thus be used more universally. Overall, these advantageous properties contribute to a high cost saving for the user. Depending on the grain size, the grinding pins can be used for roughing, finishing and fine grinding.
- the base body and the shaft are integrally formed from metal.
- the grinding pins according to the invention can be used for external grinding and internal grinding and for profile grinding, form grinding, surface grinding and cylindrical grinding.
- the sanding pins can be produced in different degrees of hardness and used for various materials.
- the degree of hardness "K” is particularly well suited for universal use on surfaces of cast materials Gray and spheroidal graphite cast iron, as well as the grinding out of voids on gray and nodular cast iron parts.
- Rubrication pencils of hardness R are particularly suitable for robust use on edges of cast materials.They are characterized by high edge stability, long tool life and low tool wear adjust the peripheral speeds of the particular application and the respective hardness.
- a particular idea of the invention is to use the grinding pins for grinding workpieces made of cast metal, in particular cast steel, gray cast iron or ductile iron.
- the grinding pins can be clamped in a freehand machine or a stationary machine.
- the grinding pins are suitable for finishing grinding or fine grinding workpieces made of cast metal, in particular cast steel, gray cast iron or nodular cast iron. This particular suitability of the present invention with BSL grinding pads for these materials has surprisingly resulted from experiments.
- the method according to the invention uses the following steps:
- the rotationally symmetrical metallic base body is at least in the grinding area with an adhesive that serves as a primer or adhesive provided. Subsequently, on the provided with adhesive outer shell in the grinding dry abrasive grains, in particular diamond grinding or CBN grains applied, which are fixed on the surface by the adhesive.
- the application can be carried out by sprinkling the abrasive grains on the outer shell. If the geometry of the grinding area allows it, it is particularly easy to apply the abrasive grains by immersing the body in a bed of abrasive grains. In order to achieve special grinding properties and / or a particularly appealing design, the abrasive grains can be applied in a predetermined orientation, for example by means of a template, on the base body.
- the grinding area provided with fixed abrasive grains is covered with a slurry containing the solder required for the BSL, a "slurry".
- "Slurry” denotes a substance in which the metallurgical bond matrix is mixed with in a suitable liquid mixed.
- At least the grinding area provided with fixed abrasive grains is subjected to a galvanic process by immersing it with the grinding pin as a cathode in a galvanic bath. Under applied stress, metallic precipitate originating from the anode is deposited, including the abrasive grains on the metallic grinding area.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200910011493 DE102009011493A1 (de) | 2009-03-06 | 2009-03-06 | Schleifstift |
PCT/EP2010/052415 WO2010100073A1 (de) | 2009-03-06 | 2010-02-25 | Schleifstift |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2403684A1 true EP2403684A1 (de) | 2012-01-11 |
EP2403684B1 EP2403684B1 (de) | 2014-04-23 |
Family
ID=42235322
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10705376.1A Revoked EP2403684B1 (de) | 2009-03-06 | 2010-02-25 | Schleifstift |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2403684B1 (de) |
DE (1) | DE102009011493A1 (de) |
WO (1) | WO2010100073A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013167666A2 (en) * | 2012-05-09 | 2013-11-14 | The Blade Saver Company Limited | A safety razor blade sharpening device and assembly |
DE102013218233A1 (de) * | 2013-05-02 | 2014-11-06 | Bayerische Motoren Werke Aktiengesellschaft | Drehendes Schleifwerkzeug |
CN113714899A (zh) * | 2021-08-23 | 2021-11-30 | 重庆市恒牛机械制造有限公司 | 制动泵壳体、制作方法及其生产设备 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB901835A (en) * | 1960-05-27 | 1962-07-25 | Carborundum Co | Method and means for dressing grinding wheels |
DE1961195U (de) | 1966-04-29 | 1967-06-01 | Interelectric Ag | Manikuer- bzw. pedikuergeraet. |
DE2411785A1 (de) | 1973-08-14 | 1975-02-27 | Abrasive Tech Inc | Verbessertes diamantschleifwerkzeug und verfahren zu dessen herstellung |
PL121916B1 (en) * | 1979-08-25 | 1982-06-30 | Przemyslu Narzedziowego Vis K | Method of manufacturing abrasive tools with a metallic galvanic bindereskim gal'vanicheskim vjazhuhhim |
DE8425852U1 (de) | 1984-09-01 | 1984-11-22 | Grob-Impetus AG, Neuhausen | Schleifstift fuer zahnaerztliche zwecke |
DE3638085A1 (de) * | 1986-11-07 | 1988-05-19 | Ex Cell O Gmbh | Verfahren und werkzeug zum abrichten eines schleifstifts |
CH675386A5 (de) * | 1988-07-27 | 1990-09-28 | Alexander Beck | |
DE3912681A1 (de) * | 1989-04-18 | 1990-10-25 | Winter & Sohn Ernst | Verfahren zum galvanischen beschichten von segmentflaechen, die auf der oberflaeche eines grundkoerpers angeordnet sind und danach hergestellte erzeugnisse |
DE3937182A1 (de) * | 1989-11-08 | 1991-05-16 | Bosch Gmbh Robert | Verfahren zur bearbeitung der oberflaeche von plankommutatoren |
DE4215525C2 (de) * | 1992-05-12 | 1995-01-12 | Kapp Werkzeugmasch | Verfahren zur Herstellung eines Schleifwerkzeugs |
DE9418876U1 (de) | 1994-11-24 | 1996-01-18 | Maschinenfabrik Reinhausen Gmbh, 93059 Regensburg | Schleifstift für GFK-Bearbeitung |
US5855314A (en) * | 1997-03-07 | 1999-01-05 | Norton Company | Abrasive tool containing coated superabrasive grain |
US6039641A (en) * | 1997-04-04 | 2000-03-21 | Sung; Chien-Min | Brazed diamond tools by infiltration |
US5997597A (en) * | 1998-02-24 | 1999-12-07 | Norton Company | Abrasive tool with knurled surface |
DE102006017664A1 (de) * | 2006-04-12 | 2007-10-18 | Volkswagen Ag | Verfahren und Vorrichtung zum Herstellen einer Form für Ur- und Umformwerkzeuge |
-
2009
- 2009-03-06 DE DE200910011493 patent/DE102009011493A1/de not_active Withdrawn
-
2010
- 2010-02-25 WO PCT/EP2010/052415 patent/WO2010100073A1/de active Application Filing
- 2010-02-25 EP EP10705376.1A patent/EP2403684B1/de not_active Revoked
Non-Patent Citations (1)
Title |
---|
See references of WO2010100073A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2010100073A1 (de) | 2010-09-10 |
EP2403684B1 (de) | 2014-04-23 |
DE102009011493A1 (de) | 2010-09-09 |
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