GB588438A - Improvements in, and relating to, the manufacture of files - Google Patents

Improvements in, and relating to, the manufacture of files

Info

Publication number
GB588438A
GB588438A GB898044A GB898044A GB588438A GB 588438 A GB588438 A GB 588438A GB 898044 A GB898044 A GB 898044A GB 898044 A GB898044 A GB 898044A GB 588438 A GB588438 A GB 588438A
Authority
GB
United Kingdom
Prior art keywords
teeth
heating
files
root
file
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
GB898044A
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.)
EDMONDS FRANK MACTAGGART
Original Assignee
EDMONDS FRANK MACTAGGART
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 EDMONDS FRANK MACTAGGART filed Critical EDMONDS FRANK MACTAGGART
Priority to GB898044A priority Critical patent/GB588438A/en
Publication of GB588438A publication Critical patent/GB588438A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/22—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for drills; for milling cutters; for machine cutting tools
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

In the manufacture of files, teeth are cut on a blank of low or medium carbon steel containing less than 0.5 per cent. of carbon, the file so produced being carburized so that the case extends at least to the root of the teeth and the carburized part surface hardened substantially only to the depth of the case or the root of the teeth by high frequency induction heating to a temperature of 760-800 DEG C. The heating may be effected by an inductor coil of the single turn type shaped to give uniform heating of the teeth or by means of a concentrator or focus conductor. After carburizing the file is quenched in air, oil or water and after the heating in water or brine. The files may be passed through the inductor in a horizontal direction by rollers or other conveying mechanism or in a direction inclined to the vertical by a roller table which is itself inclined.
GB898044A 1944-05-11 1944-05-11 Improvements in, and relating to, the manufacture of files Expired GB588438A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB898044A GB588438A (en) 1944-05-11 1944-05-11 Improvements in, and relating to, the manufacture of files

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB898044A GB588438A (en) 1944-05-11 1944-05-11 Improvements in, and relating to, the manufacture of files

Publications (1)

Publication Number Publication Date
GB588438A true GB588438A (en) 1947-05-22

Family

ID=9863027

Family Applications (1)

Application Number Title Priority Date Filing Date
GB898044A Expired GB588438A (en) 1944-05-11 1944-05-11 Improvements in, and relating to, the manufacture of files

Country Status (1)

Country Link
GB (1) GB588438A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2823562A (en) * 1953-09-16 1958-02-18 Union Carbide Corp Method of fabricating files and the like
US4597202A (en) * 1984-11-21 1986-07-01 Root Spring Scraper Company V-shaped highway snow plows

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2823562A (en) * 1953-09-16 1958-02-18 Union Carbide Corp Method of fabricating files and the like
US4597202A (en) * 1984-11-21 1986-07-01 Root Spring Scraper Company V-shaped highway snow plows

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