GB536508A - Abrasive wheel - Google Patents
Abrasive wheelInfo
- Publication number
- GB536508A GB536508A GB5725/40A GB572540A GB536508A GB 536508 A GB536508 A GB 536508A GB 5725/40 A GB5725/40 A GB 5725/40A GB 572540 A GB572540 A GB 572540A GB 536508 A GB536508 A GB 536508A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ring
- pressure
- pressed
- abrasive
- backing
- 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
- B24D18/00—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for
- B24D18/0009—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for using moulds or presses
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
536,508. Abrasive wheels. NORTON GRINDING WHEEL CO., Ltd. March 29, 1940, No. 5725. Convention date, March 29, 1939. [Class 60] [Also in Group V] An abrasive wheel for grinding cemented carbide cutting tools &c. comprises a cured organic backing 30, Fig. 5, interlocked at 22 with a backing 20, consisting of at least 95 per cent. metal, and an abrasive portion 21, integral with the backing and consisting of abrasive grains bonded with metal which comprises 50 per cent. by volume of the portion 21. The part 30 may consist of natural or artificial resin or hard rubber, the part 20 of copper with another metal or element which will make it brittle as described in Specification 479,790, [Group V], and the part 21 of material similar to that used for the part 20 with the addition of 25 per cent. by volume of diamonds, fused alumina, emery, corundum, silicon carbide, boron carbide, or the last two materials fused together. Powder for making the part 20 is placed in a mould comprising parts 10, 11, 13, 14, Fig. 3, in such quantity that, when pressed by a ring 12 in a press, a pressure of about 12,500 pounds to the square inch is produced. After pressure has been applied, the ring 12 is removed and material for the part 21 introduced in such quantity that when again pressed a pressure of about 50,000 pounds is produced. The pressed compound ring 20, 21 is removed and heated to about 500‹ C. for five hours in a reducing or inert atmosphere. Recesses, such as turned under-cut grooves 23, Fig. 5, are then formed in the exposed face of the part 20 and the compound ring is placed, with the recessed face upwards, in the mould, inverted as shown in Fig. 5. Powdered resin or the like 30 is then introduced and pressed by a ring 29. In the case of phenol formaldehyde moulding-powder a pressure of about 6,000 pounds per square inch and temperature of 160‹ C. for half an hour may be used.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US536508XA | 1939-03-29 | 1939-03-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB536508A true GB536508A (en) | 1941-05-16 |
Family
ID=21985684
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5725/40A Expired GB536508A (en) | 1939-03-29 | 1940-03-29 | Abrasive wheel |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB536508A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104044090A (en) * | 2014-06-24 | 2014-09-17 | 郑州磨料磨具磨削研究所有限公司 | Layered compression molding method and device for grinding wheel ring |
CN110497330A (en) * | 2019-09-06 | 2019-11-26 | 江苏芯工半导体科技有限公司 | A kind of skive conduit dusting device and its application method for skive processing |
-
1940
- 1940-03-29 GB GB5725/40A patent/GB536508A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104044090A (en) * | 2014-06-24 | 2014-09-17 | 郑州磨料磨具磨削研究所有限公司 | Layered compression molding method and device for grinding wheel ring |
CN110497330A (en) * | 2019-09-06 | 2019-11-26 | 江苏芯工半导体科技有限公司 | A kind of skive conduit dusting device and its application method for skive processing |
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