GB1397696A - Abrading device - Google Patents
Abrading deviceInfo
- Publication number
- GB1397696A GB1397696A GB2572473A GB2572473A GB1397696A GB 1397696 A GB1397696 A GB 1397696A GB 2572473 A GB2572473 A GB 2572473A GB 2572473 A GB2572473 A GB 2572473A GB 1397696 A GB1397696 A GB 1397696A
- Authority
- GB
- United Kingdom
- Prior art keywords
- protrusions
- base member
- particles
- abrasive grit
- metal
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D99/00—Subject matter not provided for in other groups of this subclass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D11/00—Constructional features of flexible abrasive materials; Special features in the manufacture of such materials
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
- B28D1/12—Saw-blades or saw-discs specially adapted for working stone
- B28D1/121—Circular saw blades
Abstract
1397696 Abrasive tools L R OLIVER & CO Inc 30 May 1973 [24 July 1972] 25724/73 Heading B3D An abrading device 20, Fig. 1, comprises a base member 11, a plurality of relatively smallsized fixed protrusions 10 on the base member, abrasive grit particles means 14, Fig. 2a, supported on the outer surfaces of the protrusions for abrading contact with objects to be abraded in use of the device, the abrasive grit particle means being magnetically orientated generally to render the longest axis of each particle means in an internally directed orientation relative to the outer surface of the protrusion, and bonding material 10a for holding the grit means and the protrusions in proper relative position. In one embodiment, the protrusions are in the form of metal spheres, such as steel shot, which are bonded to the surface 12 of the body. The outermost surface of each sphere has a single grit, a single layer of abrasive grit 14, or a structure 16, Fig. 4a, of a plurality of grits bonded thereto. The bonding is effected by a brazing metal. The protrusions may be of other sintered metal or alloy and be in the form of cubes, pyramids or cylinders. The base member may be in disc or plane form and the protrusions 110, Fig. 9a, may be formed from the base member and have flat, part cylindrical or part spherical outer surfaces to which the abrasive grit particles are bonded. The particles may be wettable by the bonding material so as to be held thereby on the protrusions. The abrasive grit particles are of metal, or a material, such as tungsten carbide containing cobalt, iron or nickel so as to render them magnetizable, or are coated with a magnetizable material so that, prior to bonding, the particles can be acted upon by a magnet so as to orientate the particles with their longest axes parallel to one another and at an angle of between 45 and 90 degrees from the outer surface of the protrusions. The protrusions may be of steel, metal or ceramic, and the abrasive grit particles may be of tungsten, silicon or titanium carbide, aluminium oxide, refractory oxide, refractory boride, garnet or diamond. The protrusions may be harder than the base member and may be spaced apart so as to provide a free passage therebetween for cooling fluid, and the abrasive grit particles may be brazed together so as to have only substantially point contact with one another to provide a porous structure. The abrading device may form a circular saw blade, straight or curved blade or segment, a hole saw or core bit. In the manufacture of the abrading device, a temporary binder, such as a resin, is coated over the base member and the protrusions in the form of steel shot are held by the coating. A brazing metal or bonding material in finely powdered form is then applied to the device followed by a further layer of the temporary binder. An elongated bar magnet is engaged with the base member so that when the abrasive grit particles are applied to the binder they are orientated with their longest axes extending outwardly from the device. Additional brazing metal may then be applied and the device heated to effect brazing of the base member, protrusions and particles to one another.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US27422572A | 1972-07-24 | 1972-07-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1397696A true GB1397696A (en) | 1975-06-18 |
Family
ID=23047326
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2572473A Expired GB1397696A (en) | 1972-07-24 | 1973-05-30 | Abrading device |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU472195B2 (en) |
CA (1) | CA977971A (en) |
GB (1) | GB1397696A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0439956A2 (en) * | 1990-02-02 | 1991-08-07 | Ronald Carlysle Wiand | Abrasive sheet and method of manufacturing |
GB2443252A (en) * | 2006-10-24 | 2008-04-30 | C4 Carbides Ltd | Saw blade with brazed diamond grit |
CN109759918A (en) * | 2018-12-26 | 2019-05-17 | 河海大学常州校区 | A kind of automatic controllable device and method of removal intersection hole bur |
WO2020261112A1 (en) * | 2019-06-28 | 2020-12-30 | 3M Innovative Properties Company | Magnetizable abrasive particles and method of making the same |
-
1973
- 1973-05-18 CA CA171,782A patent/CA977971A/en not_active Expired
- 1973-05-30 GB GB2572473A patent/GB1397696A/en not_active Expired
- 1973-07-11 AU AU58009/73A patent/AU472195B2/en not_active Expired
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0439956A2 (en) * | 1990-02-02 | 1991-08-07 | Ronald Carlysle Wiand | Abrasive sheet and method of manufacturing |
EP0439956A3 (en) * | 1990-02-02 | 1992-02-26 | Ronald Carlysle Wiand | Abrasive sheet and method of manufacturing |
GB2443252A (en) * | 2006-10-24 | 2008-04-30 | C4 Carbides Ltd | Saw blade with brazed diamond grit |
GB2443252B (en) * | 2006-10-24 | 2010-11-17 | C4 Carbides Ltd | Blade |
US8602016B2 (en) | 2006-10-24 | 2013-12-10 | C4 Carbides Limited | Blade |
CN109759918A (en) * | 2018-12-26 | 2019-05-17 | 河海大学常州校区 | A kind of automatic controllable device and method of removal intersection hole bur |
WO2020261112A1 (en) * | 2019-06-28 | 2020-12-30 | 3M Innovative Properties Company | Magnetizable abrasive particles and method of making the same |
Also Published As
Publication number | Publication date |
---|---|
AU472195B2 (en) | 1976-05-20 |
AU5800973A (en) | 1975-01-16 |
CA977971A (en) | 1975-11-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |