US20050081453A1 - Process of manufacturing base of diamond abrasive stone - Google Patents

Process of manufacturing base of diamond abrasive stone Download PDF

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Publication number
US20050081453A1
US20050081453A1 US10/686,032 US68603203A US2005081453A1 US 20050081453 A1 US20050081453 A1 US 20050081453A1 US 68603203 A US68603203 A US 68603203A US 2005081453 A1 US2005081453 A1 US 2005081453A1
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United States
Prior art keywords
base
steel plate
plate
holes
plastic
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Abandoned
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US10/686,032
Inventor
Johnson Qian
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to US10/686,032 priority Critical patent/US20050081453A1/en
Publication of US20050081453A1 publication Critical patent/US20050081453A1/en
Priority to US11/287,511 priority patent/US20060191207A1/en
Abandoned legal-status Critical Current

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    • 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 for 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°.

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

    BACKGROUND OF THE INVENTION
  • This invention relates to the fabrication of plastic members and more particularly to a process to manufacture the base for a diamond abrasive stone.
    • SUMMARY OF THE PRIOR ART
  • 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.
    • SUMMARY OF THE INVENTION
  • 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.
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • 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; and
  • FIG. 4 is an end elevational view of the stone assembly of FIG. 1.
    • DESCRIPTION OF THE PREFERRED EMBODIMENT
  • Referring now to FIGS. 1 and 2, there is illustrated the diamond stone assembly, generally designated by reference numeral 2, having base assembly 2 made in accordance with the process of the invention. 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. 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 the plastic 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 for 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. 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°.

Claims (3)

1. A process for manufacturing our abrasive stone composing the step
punching a plurality of holes through a flat steel palate,
applying the steel plate to plastic material,
casting the plastic material to form a base and forcing the plastic material through the plurality of holes,
grinding the surface of the steel plate,
applying flash nickel plating to the surface of the plate, and
applying multiple layers of nickel diamond material on the surface of the plate.
2. The process according to claim 1 wherein said holes are oval and external laterally across the plate in rows.
3. The process according to claim 2 wherein a portion of the steel plate is free of holes.
US10/686,032 2003-10-16 2003-10-16 Process of manufacturing base of diamond abrasive stone Abandoned US20050081453A1 (en)

Priority Applications (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

Applications Claiming Priority (1)

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

Related Child Applications (1)

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US11/287,511 Continuation US20060191207A1 (en) 2003-10-16 2005-11-25 Process of manufacturing base of diamond abrasive stone

Publications (1)

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US20050081453A1 true US20050081453A1 (en) 2005-04-21

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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

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US11/287,511 Abandoned US20060191207A1 (en) 2003-10-16 2005-11-25 Process of manufacturing base of diamond abrasive stone

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Cited By (1)

* Cited by examiner, † Cited by third party
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

Families Citing this family (2)

* Cited by examiner, † Cited by third party
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

Family Cites Families (8)

* Cited by examiner, † Cited by third party
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 (1)

* Cited by examiner, † Cited by third party
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

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