GB1048934A - Improvements in or relating to diamond trueing, dressing and forming tools for grinding wheels and to a method of producing such wheels by electrolytic deposition - Google Patents

Improvements in or relating to diamond trueing, dressing and forming tools for grinding wheels and to a method of producing such wheels by electrolytic deposition

Info

Publication number
GB1048934A
GB1048934A GB1413362A GB1413362A GB1048934A GB 1048934 A GB1048934 A GB 1048934A GB 1413362 A GB1413362 A GB 1413362A GB 1413362 A GB1413362 A GB 1413362A GB 1048934 A GB1048934 A GB 1048934A
Authority
GB
United Kingdom
Prior art keywords
former
layer
diamond
trueing
nickel
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
Application number
GB1413362A
Inventor
John Cantrell
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Unifrax 1 LLC
Original Assignee
Carborundum Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Carborundum Co filed Critical Carborundum Co
Priority to GB1413362A priority Critical patent/GB1048934A/en
Publication of GB1048934A publication Critical patent/GB1048934A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D1/00—Electroforming
    • 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
    • B24D18/00—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for
    • B24D18/0018—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for by electrolytic deposition
    • 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
    • B24D7/18—Wheels of special form

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Abstract

<FORM:1048934/C4-C5/1> <FORM:1048934/C4-C5/2> A diamond trueing, dressing, or forming tool is formed by providing a bed of diamond particles in contact with an accurate former, electrolytically tacking a single layer of diamond particles directly on to the former by depositing a layer of soft metal so as to cover partially the diamond particle layer, bonding and completely covering the layer of diamond particles by a second electro-deposited layer, and removing at least the former and the soft metal tacking layer. Typically in producing a trueing tool for a thread grinding wheel an aluminium former 10, which is of the form required for the thread grinding wheel, is connected as cathode in a bath 15 of copper sulphate in a sleeve 12 embracing the former which is supported on a porous ceramic tile 11, and its central opening is filled with diamond grit 14 into which an anode rod 13 is centrally introduced. When a thin deposit 18, e.g. 2 mils. thick, of copper, has been formed, the former with its adhering single layer of particles is then electroplated with nickel, e.g. to a thickness of 1/8 inch, and a steel centre piece 20 is then located in the central opening and the annular space between the nickel and the steel centre is filled with a metal powder-loaded epoxy resin cement. When this has hardened, the bore of the steel centre is enlarged to the required size concentrically with the periphery of the former, and the former is removed by machining and dissolving in caustic soda, whereafter a dilute hydrochloric acid treatment removes the copper layer, and some of the nickel if desired, to reveal the diamond particles 17. By an analogous method starting from a former having a size and shape to which a grinding tool is to be trued, a trueing tool for a flute grinding wheel may be produced (Fig. 8, not shown). Instead of aluminium, the formers may be of other alkali soluble metals, a metal of low melting point, or a metallized plastic material.ALSO:<PICT:1048934/C6-C7/1> <PICT:1048934/C6-C7/2> A diamond trueing, dressing or forming tool is formed by providing a bed of diamond particles in contact with an accurate former, electrolytically tacking a single layer of diamond particles directly on to the former by depositing a layer of soft metal so as to cover partially the diamond particle layer, bonding and completely covering the layer of diamond particles by a second electrodeposited layer, and removing at least the former and the soft metal tacking layer. Typically in producing a trueing tool for a thread grinding wheel an aluminium former 10, which is of the form required for the thread grinding wheel, is connected as cathode in a bath 15 of copper sulphate in a sleeve 12 embracing the former which is supported on a porous ceramic tile 11, and its central opening is filled with diamond grit 14 into which an anode rod 13 is cetrally introduced. When a thin deposit 18, e.g. 2 mils thick, of copper has been formed, the former with its adhering single layer of particles is then electro plated with nickel, e.g. to a thickness of 1/8 inch, and a steel centre piece 20 is then located in the central opening and the annular space between the nickel and steel centre is filled with a metal powder-loaded epoxy resin cement. When this has hardened, the bore of the steel centre is enlarged to the required size concentrically with the periphery of the former, and the former is removed by machining and dissolving in caustic soda, whereafter a dilute hydrochloric acid treatment removes the copper layer, and some of the nickel if desired, to reveal the diamond particles 17. By an analogous method starting from a former having a size and shape to which a grinding tool is to be tried, a trueing tool for a flute grinding wheel may be produced (Fig. 8 not shown). Instead of aluminium, the formers may be of other alkali soluble metals, a metal of low melting point or a metallized plastic material.
GB1413362A 1962-04-12 1962-04-12 Improvements in or relating to diamond trueing, dressing and forming tools for grinding wheels and to a method of producing such wheels by electrolytic deposition Expired GB1048934A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1413362A GB1048934A (en) 1962-04-12 1962-04-12 Improvements in or relating to diamond trueing, dressing and forming tools for grinding wheels and to a method of producing such wheels by electrolytic deposition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1413362A GB1048934A (en) 1962-04-12 1962-04-12 Improvements in or relating to diamond trueing, dressing and forming tools for grinding wheels and to a method of producing such wheels by electrolytic deposition

Publications (1)

Publication Number Publication Date
GB1048934A true GB1048934A (en) 1966-11-23

Family

ID=10035595

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1413362A Expired GB1048934A (en) 1962-04-12 1962-04-12 Improvements in or relating to diamond trueing, dressing and forming tools for grinding wheels and to a method of producing such wheels by electrolytic deposition

Country Status (1)

Country Link
GB (1) GB1048934A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3537960A (en) * 1968-12-06 1970-11-03 Gen Electric Method of producing reinforcements in electro-deposits
US3957593A (en) * 1975-01-31 1976-05-18 Keene Corporation Method of forming an abrasive tool
FR2413182A1 (en) * 1977-12-27 1979-07-27 Honda Motor Co Ltd Grinding wheel mfg. process - has hub blank machined and balanced before applying peripheral abrasive coating
FR2521048A1 (en) * 1982-01-28 1983-08-12 Kapp Co Werkzeugmaschinenfabri TOOL FOR MAKING EXTERNAL PROFILE FORMS
EP0090274A2 (en) * 1982-03-25 1983-10-05 DIAMOND PAUBER S.r.l. Abrasive element obtained by electrolytic deposit of diamond
GB2208617A (en) * 1987-08-12 1989-04-12 Wendt Gmbh Dressing roll
EP0642887A2 (en) * 1993-08-09 1995-03-15 United States Surgical Corporation Apparatus for producing hollow ground needles

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3537960A (en) * 1968-12-06 1970-11-03 Gen Electric Method of producing reinforcements in electro-deposits
US3957593A (en) * 1975-01-31 1976-05-18 Keene Corporation Method of forming an abrasive tool
FR2413182A1 (en) * 1977-12-27 1979-07-27 Honda Motor Co Ltd Grinding wheel mfg. process - has hub blank machined and balanced before applying peripheral abrasive coating
FR2521048A1 (en) * 1982-01-28 1983-08-12 Kapp Co Werkzeugmaschinenfabri TOOL FOR MAKING EXTERNAL PROFILE FORMS
EP0090274A2 (en) * 1982-03-25 1983-10-05 DIAMOND PAUBER S.r.l. Abrasive element obtained by electrolytic deposit of diamond
EP0090274A3 (en) * 1982-03-25 1985-10-09 Diamond Pauber S.R.L. Abrasive element obtained by electrolytic deposit of diamond
GB2208617A (en) * 1987-08-12 1989-04-12 Wendt Gmbh Dressing roll
GB2208617B (en) * 1987-08-12 1991-11-06 Wendt Gmbh Dressing roll
US5571042A (en) * 1992-10-09 1996-11-05 United States Surgical Corporation Apparatus for producing hollow ground needles
US5810645A (en) * 1992-10-09 1998-09-22 United States Surgical Corporation Apparatus for producing hollow ground needles
EP0642887A2 (en) * 1993-08-09 1995-03-15 United States Surgical Corporation Apparatus for producing hollow ground needles
EP0642887A3 (en) * 1993-08-09 1995-05-17 United States Surgical Corp Apparatus for producing hollow ground needles.

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