US20060191207A1 - Process of manufacturing base of diamond abrasive stone - Google Patents
Process of manufacturing base of diamond abrasive stone Download PDFInfo
- Publication number
- US20060191207A1 US20060191207A1 US11/287,511 US28751105A US2006191207A1 US 20060191207 A1 US20060191207 A1 US 20060191207A1 US 28751105 A US28751105 A US 28751105A US 2006191207 A1 US2006191207 A1 US 2006191207A1
- Authority
- US
- United States
- Prior art keywords
- steel plate
- base
- holes
- plate
- plastic
- 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.)
- Abandoned
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D15/00—Hand tools or other devices for non-rotary grinding, polishing, or stropping
- B24D15/06—Hand tools or other devices for non-rotary grinding, polishing, or stropping specially designed for sharpening cutting edges
- B24D15/08—Hand tools or other devices for non-rotary grinding, polishing, or stropping specially designed for sharpening cutting edges of knives; of razors
Definitions
- This invention relates to the fabrication of plastic members and more particularly to a process to manufacture the base for a diamond abrasive stone.
- Abrasive stones are often affixed to a plate that is attached to a base such as formed from plastic. Many molding processes are employed in the prior art to fabricate the base supporting abrasives. It is known to apply abrasive stones through a metal plate affixed to the base, such as formed from plastic. Prior techniques, however, have been defective in providing optimum bonding between the plate and base, and do not provide a suitable low shrink rate.
- an objective of the invention to provide a process for fabricating the base of a diamond bench abrasive stone for sharpening knives and the like
- the process provides a superior bond between a steel plate and the base. After formation and bonding, the block is then plated with diamond abrasive and nickel.
- FIG. 1 is a top plan view of the abrasive diamond stone assembly made in accordance with the process of the invention
- FIG. 2 is a side elevational view of the stone assembly of FIG. 1 ;
- FIG. 3 is a bottom plan view of stone assembly of FIG. 1 ;
- FIG. 4 is an end elevational view of the stone assembly of FIG. 1 .
- the base assembly 2 includes a lower plastic base on which a plate 6 is bonded in accordance with the invention.
- the plastic base 4 includes an upper wall 8 ( FIG. 3 ) and four opposed upright longitudinal walls 10 and opposed upright lateral walls 12 to form cavity 14 .
- a longitudinal rib 16 extends within the cavity and connects with a plurality of lateral rib segments 18 .
- the upper steel plate 6 is manufactured with oval holes 22 with conventional progressive punching equipment.
- the holes 22 are punched through the steel plate in lateral rows 22 in the pattern shown in FIG. 1 across a substantial portion of the steel plate except for the unpunched area 24 .
- the plate 6 is applied to the plastic base prior to the molding procedure.
- the plastic base is fabricated by molding in conventional molding machines and constructed with a 40 mm curvature, which in fact results in a flatter, straighter part coming out of the molding. Once the base is molded, then the flash (excess plastic material) is removed from the top surface and from all four edges.
- the molding process causes the plastic base material to be forced through the holes 22 of the top steel plate 6 , assuring that 100% of the surface area of the steel plate 6 is bonded to the plastic base 4 .
- the surface of the steel plate 6 is ground on a horizontal surface grinder using an aluminum oxide abrasive grinding wheel to remove any blemishes and to guarantee 100% flattening.
- the base assembly is thoroughly cleaned and flash nickel plated, rinsed, and cleaned and then nickel diamond plated three times on the exposed metal surface of the plate 6 as shown in FIG. 1 , resulting in three layers of diamond particles and a final layer of nickel plating to fill in any voids and to strengthen the bond of the diamonds.
- the plastic base 4 is formed from resin formed from glass fiber, plastic resin and a filler. Other ingredients in the form of pigments, accelerants, and low shrinkage ingredients are added. During the molding process, the steel sheet are molded together for more than five minutes with the mold being heated to 190°.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
A process for manufacturing the base of a diamond abrasive stone wherein a steel plate having a plurality of oval holes is bonded to a plastic base in a casting process so that plastic material is forced through the holes. Layers of nickel diamond material is applied to the surface of the steel plate.
Description
- This application is a continuation of non-provisional application Ser. No. 10/686,032 filed Oct. 16, 2003.
- This invention relates to the fabrication of plastic members and more particularly to a process to manufacture the base for a diamond abrasive stone.
- Abrasive stones are often affixed to a plate that is attached to a base such as formed from plastic. Many molding processes are employed in the prior art to fabricate the base supporting abrasives. It is known to apply abrasive stones through a metal plate affixed to the base, such as formed from plastic. Prior techniques, however, have been defective in providing optimum bonding between the plate and base, and do not provide a suitable low shrink rate.
-
- It is therefore, an objective of the invention to provide a process for fabricating the base of a diamond bench abrasive stone for sharpening knives and the like The process provides a superior bond between a steel plate and the base. After formation and bonding, the block is then plated with diamond abrasive and nickel.
-
FIG. 1 is a top plan view of the abrasive diamond stone assembly made in accordance with the process of the invention; -
FIG. 2 is a side elevational view of the stone assembly ofFIG. 1 ; -
FIG. 3 is a bottom plan view of stone assembly ofFIG. 1 ; and -
FIG. 4 is an end elevational view of the stone assembly ofFIG. 1 . - Referring now to
FIGS. 1 and 2 , there is illustrated the diamond stone assembly, generally designated byreference numeral 2, havingbase assembly 2 made in accordance with the process of the invention. Thebase assembly 2 includes a lower plastic base on which a plate 6 is bonded in accordance with the invention. Theplastic base 4 includes an upper wall 8 (FIG. 3 ) and four opposed uprightlongitudinal walls 10 and opposed upright lateral walls 12 to formcavity 14. A longitudinal rib 16 extends within the cavity and connects with a plurality oflateral rib segments 18. - The upper steel plate 6 is manufactured with oval holes 22 with conventional progressive punching equipment. The holes 22 are punched through the steel plate in lateral rows 22 in the pattern shown in
FIG. 1 across a substantial portion of the steel plate except for theunpunched area 24. After the steel plate 6 is punched, it is de-burred and nickel-plated on its bottom to prevent any rust or oxidation developing between theplastic base 4 and the steel plate 6. The plate 6 is applied to the plastic base prior to the molding procedure. The plastic base is fabricated by molding in conventional molding machines and constructed with a 40 mm curvature, which in fact results in a flatter, straighter part coming out of the molding. Once the base is molded, then the flash (excess plastic material) is removed from the top surface and from all four edges. - The molding process causes the plastic base material to be forced through the holes 22 of the top steel plate 6, assuring that 100% of the surface area of the steel plate 6 is bonded to the
plastic base 4. After excess plastic is removed, the surface of the steel plate 6 is ground on a horizontal surface grinder using an aluminum oxide abrasive grinding wheel to remove any blemishes and to guarantee 100% flattening. - After grinding, the base assembly is thoroughly cleaned and flash nickel plated, rinsed, and cleaned and then nickel diamond plated three times on the exposed metal surface of the plate 6 as shown in
FIG. 1 , resulting in three layers of diamond particles and a final layer of nickel plating to fill in any voids and to strengthen the bond of the diamonds. Theplastic base 4 is formed from resin formed from glass fiber, plastic resin and a filler. Other ingredients in the form of pigments, accelerants, and low shrinkage ingredients are added. During the molding process, the steel sheet are molded together for more than five minutes with the mold being heated to 190°.
Claims (7)
1. A process for manufacturing an abrasive stone comprising
the steps of
punching a plurality of holes through a flat steel plate,
de-burring said steel plate and nickel plating the bottom of said plate,
applying said steel plate to a plastic material,
casting the plastic material to form a base and forcing the plastic material through said plurality of holes,
grinding the surface of said steel plate,
applying flash nickel plating to the surface of said plate, and
plating a nickel diamond material three times on the surface on the surface of said plate.
2. The process according to claim 1 wherein said holes are oval and extend laterally across the plate in rows.
3. The process according to claim 2 wherein a portion of the steel plate is free of holes.
4. A process of manufacturing a base for an abrasive stone comprising the steps of
punching a plurality of holes through a flat steel plate,
applying a steel plate to a plastic base,
molding the plastic base together with steel plate,
forcing the plastic material of the base through said plurality of holes during said molding and form the base for the abrasive stone.
5. The process according to claim 4 wherein a portion of said steel plate is not punched with a plurality of holes.
6. The process according to claim 4 wherein said holes are oval and extend laterally across said plate in rows other than said portion.
7. The process according to claim 4 further comprising the step of grinding the surface of the metal plate to remove excess plastic
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/287,511 US20060191207A1 (en) | 2003-10-16 | 2005-11-25 | Process of manufacturing base of diamond abrasive stone |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/686,032 US20050081453A1 (en) | 2003-10-16 | 2003-10-16 | Process of manufacturing base of diamond abrasive stone |
US11/287,511 US20060191207A1 (en) | 2003-10-16 | 2005-11-25 | Process of manufacturing base of diamond abrasive stone |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/686,032 Continuation US20050081453A1 (en) | 2003-10-16 | 2003-10-16 | Process of manufacturing base of diamond abrasive stone |
Publications (1)
Publication Number | Publication Date |
---|---|
US20060191207A1 true US20060191207A1 (en) | 2006-08-31 |
Family
ID=34520702
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/686,032 Abandoned US20050081453A1 (en) | 2003-10-16 | 2003-10-16 | Process of manufacturing base of diamond abrasive stone |
US11/287,511 Abandoned US20060191207A1 (en) | 2003-10-16 | 2005-11-25 | Process of manufacturing base of diamond abrasive stone |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/686,032 Abandoned US20050081453A1 (en) | 2003-10-16 | 2003-10-16 | Process of manufacturing base of diamond abrasive stone |
Country Status (1)
Country | Link |
---|---|
US (2) | US20050081453A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110073094A1 (en) * | 2009-09-28 | 2011-03-31 | 3M Innovative Properties Company | Abrasive article with solid core and methods of making the same |
US20120028553A1 (en) * | 2010-07-30 | 2012-02-02 | Saint-Gobain Abrasives, Inc. | Flexible abrasive grinding apparatus and related methods |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113172559A (en) * | 2021-05-06 | 2021-07-27 | 重庆市腾龙磨料磨具有限公司 | Abrasive material flattening device for automatic grinding wheel machining equipment |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3778936A (en) * | 1972-05-12 | 1973-12-18 | Norton Co | Mounted abrasive point |
US4047902A (en) * | 1975-04-01 | 1977-09-13 | Wiand Richard K | Metal-plated abrasive product and method of manufacturing the product |
US4077825A (en) * | 1973-07-06 | 1978-03-07 | Hiromitsu Naka | Method of producing a flexible non-skid strip |
US4882878A (en) * | 1988-08-05 | 1989-11-28 | Benner Robert L | Grinding wheel |
US5919084A (en) * | 1997-06-25 | 1999-07-06 | Diamond Machining Technology, Inc. | Two-sided abrasive tool and method of assembling same |
US6015520A (en) * | 1997-05-15 | 2000-01-18 | International Business Machines Corporation | Method for filling holes in printed wiring boards |
US6402603B1 (en) * | 1998-12-15 | 2002-06-11 | Diamond Machining Technology, Inc. | Two-sided abrasive tool |
US6769969B1 (en) * | 1997-03-06 | 2004-08-03 | Keltech Engineering, Inc. | Raised island abrasive, method of use and lapping apparatus |
-
2003
- 2003-10-16 US US10/686,032 patent/US20050081453A1/en not_active Abandoned
-
2005
- 2005-11-25 US US11/287,511 patent/US20060191207A1/en not_active Abandoned
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3778936A (en) * | 1972-05-12 | 1973-12-18 | Norton Co | Mounted abrasive point |
US4077825A (en) * | 1973-07-06 | 1978-03-07 | Hiromitsu Naka | Method of producing a flexible non-skid strip |
US4047902A (en) * | 1975-04-01 | 1977-09-13 | Wiand Richard K | Metal-plated abrasive product and method of manufacturing the product |
US4882878A (en) * | 1988-08-05 | 1989-11-28 | Benner Robert L | Grinding wheel |
US6769969B1 (en) * | 1997-03-06 | 2004-08-03 | Keltech Engineering, Inc. | Raised island abrasive, method of use and lapping apparatus |
US6015520A (en) * | 1997-05-15 | 2000-01-18 | International Business Machines Corporation | Method for filling holes in printed wiring boards |
US5919084A (en) * | 1997-06-25 | 1999-07-06 | Diamond Machining Technology, Inc. | Two-sided abrasive tool and method of assembling same |
US6402603B1 (en) * | 1998-12-15 | 2002-06-11 | Diamond Machining Technology, Inc. | Two-sided abrasive tool |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110073094A1 (en) * | 2009-09-28 | 2011-03-31 | 3M Innovative Properties Company | Abrasive article with solid core and methods of making the same |
US20120028553A1 (en) * | 2010-07-30 | 2012-02-02 | Saint-Gobain Abrasives, Inc. | Flexible abrasive grinding apparatus and related methods |
Also Published As
Publication number | Publication date |
---|---|
US20050081453A1 (en) | 2005-04-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |