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GB936871A - Improvements in or relating to the electrolytic machining of metals - Google Patents

Improvements in or relating to the electrolytic machining of metals

Info

Publication number
GB936871A
GB936871A GB19782/60A GB1978260A GB936871A GB 936871 A GB936871 A GB 936871A GB 19782/60 A GB19782/60 A GB 19782/60A GB 1978260 A GB1978260 A GB 1978260A GB 936871 A GB936871 A GB 936871A
Authority
GB
United Kingdom
Prior art keywords
electrolyte
cemented
electro
steel
ethylene diamine
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
GB19782/60A
Inventor
Charles Lawson Faust
John Edward Clifford
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.)
Cleveland Twist Drill Co
Original Assignee
Cleveland Twist Drill 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
Priority to US17982A priority Critical patent/US3357905A/en
Application filed by Cleveland Twist Drill Co filed Critical Cleveland Twist Drill Co
Priority to GB19782/60A priority patent/GB936871A/en
Publication of GB936871A publication Critical patent/GB936871A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
    • B23H3/00—Electrochemical machining, i.e. removing metal by passing current between an electrode and a workpiece in the presence of an electrolyte
    • B23H3/08—Working media

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electrolytic Production Of Metals (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)

Abstract

936,871. Electro-machining metals. CLEVELAND TWIST DRILL CO. June 3, 1960, No. 19782/60. Class 41. Bodies of cemented metal carbides are electro-machined using as electrolyte an aqueous solution containing free hydroxy] ions and a dissolving agent for the cementing material and consisting of a saturated polybasic organic acid, an ammonium halide, or an organic amine. In examples, the following compounds are added to an alkali hydroxide solution, sodium oxalate, citrate, tartrate, or gluconate; tri-ethanolamine, tetrasodium ethylene diamine tetraacetate, ethylene diamine, ammonium chloride, bromide or iodide, and combinations of these. Tungsten carbide cemented with cobalt and silver soldered to steel, and similar metal bodies may be shaped, and sharpened to form tools by applying the electrolyte in an apparatus as described in Specification 854,541. Where silver solder is present, e.g. in a workpiece of a cemented carbide, steel and silver solder, the electrolyte preferably includes a cyanide or an amine, which will then also dissolve other impurities present, e.g. tungsten and cobalt oxides, and compounds of Ag, Cu, Zn, Cd, Fe, and nickel. A range of electrolyte compositions are described for cemented metal carbides, and may include other alkali metal salts e.g. Na 2 CO 3 , NaCl, and KF.
GB19782/60A 1960-03-28 1960-06-03 Improvements in or relating to the electrolytic machining of metals Expired GB936871A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US17982A US3357905A (en) 1960-03-28 1960-03-28 Electrolyte composition and method of electrolytically removing stock from workpiece
GB19782/60A GB936871A (en) 1960-03-28 1960-06-03 Improvements in or relating to the electrolytic machining of metals

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US17982A US3357905A (en) 1960-03-28 1960-03-28 Electrolyte composition and method of electrolytically removing stock from workpiece
GB19782/60A GB936871A (en) 1960-03-28 1960-06-03 Improvements in or relating to the electrolytic machining of metals

Publications (1)

Publication Number Publication Date
GB936871A true GB936871A (en) 1963-09-18

Family

ID=33100017

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19782/60A Expired GB936871A (en) 1960-03-28 1960-06-03 Improvements in or relating to the electrolytic machining of metals

Country Status (2)

Country Link
US (1) US3357905A (en)
GB (1) GB936871A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996018759A1 (en) * 1994-12-12 1996-06-20 Sandvik Ab Method for obtaining well-defined edge radii on cutting tool inserts by electropolishing technique
WO1997046741A1 (en) * 1996-06-07 1997-12-11 Sandvik Ab (Publ) Method for obtaining well-defined edge radii by electropolishing
US5993638A (en) * 1997-05-23 1999-11-30 Sandvik Ab Method for obtaining well-defined edge radii on cutting tool inserts in combination with a high surface finish over the whole insert by electropolishing technique
EP1075900A2 (en) * 1999-08-10 2001-02-14 Clive Alan Francis Blade re-sharpener

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008008894A1 (en) * 2008-02-13 2009-08-20 Man Turbo Ag Method for producing a component for a thermal machine
GB2548250B (en) * 2014-09-26 2021-09-22 Nat Oilwell Varco Lp Electrochemical corrosion of catalyst material from PCD elements
WO2021255721A1 (en) * 2020-06-14 2021-12-23 Ariel Scientific Innovations Ltd. Disc saw arrangement for electric discharge machining

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1337718A (en) * 1918-09-03 1920-04-20 Western Electric Co Cleansing of ferrous and non-ferrous metals
US1598731A (en) * 1925-05-01 1926-09-07 Studebaker Corp Cleaning of metal by electrolysis
US1863868A (en) * 1929-03-06 1932-06-21 Ternstedt Mfg Co Chromium stripping bath
US2299054A (en) * 1939-06-20 1942-10-13 Harshaw Chem Corp Electroplating
US2385198A (en) * 1942-02-06 1945-09-18 Carboloy Company Inc Method for forming drawing holes in carbide die nibs
US2429107A (en) * 1943-04-02 1947-10-14 Method of producing a stainless
BE482434A (en) * 1947-06-06
US2649361A (en) * 1949-05-13 1953-08-18 Enthone Method of dissolving metals and compostion therefor
US2826540A (en) * 1952-09-18 1958-03-11 George F Keeleric Method and apparatus for electrolytic cutting, shaping, and grinding
BE547173A (en) * 1955-05-09
US2915444A (en) * 1955-12-09 1959-12-01 Enthone Process for cleaning and plating ferrous metals
US2939826A (en) * 1956-04-05 1960-06-07 Graham L Gulick Method of cleaning ferrous metal objects
US2939825A (en) * 1956-04-09 1960-06-07 Cleveland Twist Drill Co Sharpening, shaping and finishing of electrically conductive materials

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996018759A1 (en) * 1994-12-12 1996-06-20 Sandvik Ab Method for obtaining well-defined edge radii on cutting tool inserts by electropolishing technique
WO1997046741A1 (en) * 1996-06-07 1997-12-11 Sandvik Ab (Publ) Method for obtaining well-defined edge radii by electropolishing
US5993638A (en) * 1997-05-23 1999-11-30 Sandvik Ab Method for obtaining well-defined edge radii on cutting tool inserts in combination with a high surface finish over the whole insert by electropolishing technique
EP1075900A2 (en) * 1999-08-10 2001-02-14 Clive Alan Francis Blade re-sharpener
EP1075900A3 (en) * 1999-08-10 2003-08-06 Clive Alan Francis Blade re-sharpener

Also Published As

Publication number Publication date
US3357905A (en) 1967-12-12

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