US2391589A - Abrasive tool - Google Patents
Abrasive tool Download PDFInfo
- Publication number
- US2391589A US2391589A US528461A US52846144A US2391589A US 2391589 A US2391589 A US 2391589A US 528461 A US528461 A US 528461A US 52846144 A US52846144 A US 52846144A US 2391589 A US2391589 A US 2391589A
- Authority
- US
- United States
- Prior art keywords
- abrasive
- carbide
- slab
- carrier
- carbides
- 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
- 150000001247 metal acetylides Chemical class 0.000 description 7
- 239000000203 mixture Substances 0.000 description 7
- 239000007767 bonding agent Substances 0.000 description 6
- 239000010432 diamond Substances 0.000 description 6
- 229910003460 diamond Inorganic materials 0.000 description 6
- 239000000428 dust Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 229910052580 B4C Inorganic materials 0.000 description 3
- INAHAJYZKVIDIZ-UHFFFAOYSA-N boron carbide Chemical compound B12B3B4C32B41 INAHAJYZKVIDIZ-UHFFFAOYSA-N 0.000 description 3
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 3
- 229910010271 silicon carbide Inorganic materials 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 229910017052 cobalt Inorganic materials 0.000 description 2
- 239000010941 cobalt Substances 0.000 description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012634 fragment Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 239000011733 molybdenum Substances 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- 229910026551 ZrC Inorganic materials 0.000 description 1
- OTCHGXYCWNXDOA-UHFFFAOYSA-N [C].[Zr] Chemical compound [C].[Zr] OTCHGXYCWNXDOA-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052810 boron oxide Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- UFGZSIPAQKLCGR-UHFFFAOYSA-N chromium carbide Chemical compound [Cr]#C[Cr]C#[Cr] UFGZSIPAQKLCGR-UHFFFAOYSA-N 0.000 description 1
- 239000010431 corundum Substances 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- JKWMSGQKBLHBQQ-UHFFFAOYSA-N diboron trioxide Chemical compound O=BOB=O JKWMSGQKBLHBQQ-UHFFFAOYSA-N 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 229910003470 tongbaite Inorganic materials 0.000 description 1
Classifications
-
- 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
- B24D3/02—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent
- B24D3/04—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic
- B24D3/06—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic metallic or mixture of metals with ceramic materials, e.g. hard metals, "cermets", cements
- B24D3/08—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic metallic or mixture of metals with ceramic materials, e.g. hard metals, "cermets", cements for close-grained structure, e.g. using metal with low melting point
Definitions
- an improved form of tool is provided by the employment, as a bonding agent, of a material such as a metallic carbide other than the carbides of tungsten, molybdenum, titanium or cobalt, or a mixture of carbides which, in addition to possessing bonding properties, is adapted to function as a secondary abrasive or has, in some measure, abrasive properties in addition to its bonding properties.
- a material such as a metallic carbide other than the carbides of tungsten, molybdenum, titanium or cobalt, or a mixture of carbides which, in addition to possessing bonding properties, is adapted to function as a secondary abrasive or has, in some measure, abrasive properties in addition to its bonding properties.
- a relatively hard material such as a metallic carbide or mixture of carbides which is capable, in some measure, of assisting in carrying out the work to be performed by the diamond dust or other primary abrasive used.
- carbides e. g., the carbides of tungsten, molybdenum, titanium and cobalt are not satisfactory or entirely satisfactory but that others are eminently suitable for the purpose in view and giveremarkably satisfactory results.
- carbide selected in any given case will be dependent upon therequirements of the finished tool.
- carbides which have been found suitable for use in carrying out the present invention are boron carbide, silicon carbide, zirconium carbide, nickel carbide, chromium carbide and the carbides of iron. In some instances.
- a slab-receiving face of the carrier is preferably formed with a plurality of keys and/Or recesses and the slab is anchored to the carrier as is described in copending application N0. 11,439/42. As is pointed out in the Specification of application No. 11,439/42, the
- keys or recesses may be of any preferred form and the slab material may be applied in plastic conditions to the face of a carrier preformed with the said recesses, in such manner that the slab material is forced into the recesses before it is allowed to set and this may be effected in various ways.
- a bonding agent consisting of a mixture of silicon carbide, boron carbide and aluminum oxide is used.
- the three ingredients are mixed in powder form, heated to a sintering temperature, cooled, crushed and graded, and the appropriate grading is subsequently admixed with the diamond dust or other abrasive to-form a mixture in which the bonding agent is not less than four times by volume the quantity of diamond present and from which the abrasive'slab is produced.
- the mixture of diamond dust and bonding agent may be placed in the lower part of a mould of circular cross section and a disc-like carrier composed of a relatively soft metal such as aluminum is placed in position thereon, the underside ofthe carrier being formed with a plurality of keyways or recesses so that the keying effect above described may ultimately be obtained.
- the whole is then heated to a temperature of the order of 800 C. until the metal of the carrier fuses and the mixture becomes plastic. Thereupon, the .whole is allowed to cool in a press whilst a moderate or low pressure of the order of 1 ton per square inch .or less is applied thereto.
- the diamond dust or the like is bonded together by the bonding particles bonded together by a bond which functions as a secondary abrasive and consists of a mixture of boron carbide, silicon carbide and at least one metallic carbide.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Description
Patented Dec. 25, 1945 so STATES PATENT OFFICE ABRASIVE TOOL Leon Nussbaum, London, England, asslgnor of one-half to Hatim Attari, London, England No Drawing. Application March 28, 1944, Serial No. 528,461. In Great Britain April 29, 1943 1 Claim.
slab made up of abrasive dust or fragments suitably bonded together mounted thereon.
Various materials have been used for the purpose of bonding together the abrasive particles or fragments but, in many instances, they have proved unsatisfactory.
According to the present invention, an improved form of tool is provided by the employment, as a bonding agent, of a material such as a metallic carbide other than the carbides of tungsten, molybdenum, titanium or cobalt, or a mixture of carbides which, in addition to possessing bonding properties, is adapted to function as a secondary abrasive or has, in some measure, abrasive properties in addition to its bonding properties.
Thus, in carrying the invention into effect there is used for the bonding agent, a relatively hard material such as a metallic carbide or mixture of carbides which is capable, in some measure, of assisting in carrying out the work to be performed by the diamond dust or other primary abrasive used. In this connection, it has been found that certain carbides, e. g., the carbides of tungsten, molybdenum, titanium and cobalt are not satisfactory or entirely satisfactory but that others are eminently suitable for the purpose in view and giveremarkably satisfactory results.
The carbide selected in any given case will be dependent upon therequirements of the finished tool. Examples of carbides which have been found suitable for use in carrying out the present invention are boron carbide, silicon carbide, zirconium carbide, nickel carbide, chromium carbide and the carbides of iron. In some instances.
agent to form an abrasive slab which is applied to or mounted on a tool carrier so that the slab becomes firmly anchored in position on the carrier. For this purpose, a slab-receiving face of the carrier is preferably formed with a plurality of keys and/Or recesses and the slab is anchored to the carrier as is described in copending application N0. 11,439/42. As is pointed out in the Specification of application No. 11,439/42, the
keys or recesses may be of any preferred form and the slab material may be applied in plastic conditions to the face of a carrier preformed with the said recesses, in such manner that the slab material is forced into the recesses before it is allowed to set and this may be effected in various ways.
According to one embodiment of the invention. a bonding agent consisting of a mixture of silicon carbide, boron carbide and aluminum oxide is used. The three ingredients are mixed in powder form, heated to a sintering temperature, cooled, crushed and graded, and the appropriate grading is subsequently admixed with the diamond dust or other abrasive to-form a mixture in which the bonding agent is not less than four times by volume the quantity of diamond present and from which the abrasive'slab is produced. In forming the rotary tool, the mixture of diamond dust and bonding agent may be placed in the lower part of a mould of circular cross section and a disc-like carrier composed of a relatively soft metal such as aluminum is placed in position thereon, the underside ofthe carrier being formed with a plurality of keyways or recesses so that the keying effect above described may ultimately be obtained. The whole is then heated to a temperature of the order of 800 C. until the metal of the carrier fuses and the mixture becomes plastic. Thereupon, the .whole is allowed to cool in a press whilst a moderate or low pressure of the order of 1 ton per square inch .or less is applied thereto.
I claim: An abrasive or cutting tool of the character however, an oxide such as boron oxide, silicon described comprising a body formed of diamond oxide, aluminum oxide or corundum may be used for the relatively hard bonding agent instead of a carbide.
In one form of the invention, the diamond dust or the like is bonded together by the bonding particles bonded together by a bond which functions as a secondary abrasive and consists of a mixture of boron carbide, silicon carbide and at least one metallic carbide.
LEON NUSBBAUM.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2391589X | 1943-04-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2391589A true US2391589A (en) | 1945-12-25 |
Family
ID=10905562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US528461A Expired - Lifetime US2391589A (en) | 1943-04-29 | 1944-03-28 | Abrasive tool |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US2391589A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3136615A (en) * | 1960-10-03 | 1964-06-09 | Gen Electric | Compact of abrasive crystalline material with boron carbide bonding medium |
| US4124401A (en) * | 1977-10-21 | 1978-11-07 | General Electric Company | Polycrystalline diamond body |
| DK154824B (en) * | 1977-10-21 | 1988-12-27 | Gen Electric | POLYCRYSTALLIC DIAMOND BODIES AND PROCEDURES FOR PREPARING IT |
| US20070164490A1 (en) * | 2006-01-17 | 2007-07-19 | Alex Cooper | Method of manufacturing of abrasive tools |
-
1944
- 1944-03-28 US US528461A patent/US2391589A/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3136615A (en) * | 1960-10-03 | 1964-06-09 | Gen Electric | Compact of abrasive crystalline material with boron carbide bonding medium |
| US4124401A (en) * | 1977-10-21 | 1978-11-07 | General Electric Company | Polycrystalline diamond body |
| DK154824B (en) * | 1977-10-21 | 1988-12-27 | Gen Electric | POLYCRYSTALLIC DIAMOND BODIES AND PROCEDURES FOR PREPARING IT |
| US20070164490A1 (en) * | 2006-01-17 | 2007-07-19 | Alex Cooper | Method of manufacturing of abrasive tools |
| US7347882B2 (en) * | 2006-01-17 | 2008-03-25 | Alex Cooper | Method of manufacturing of abrasive tools |
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