GB979512A - Improvements in or relating to the manufacture of steel cutting tools - Google Patents

Improvements in or relating to the manufacture of steel cutting tools

Info

Publication number
GB979512A
GB979512A GB7249/63A GB724963A GB979512A GB 979512 A GB979512 A GB 979512A GB 7249/63 A GB7249/63 A GB 7249/63A GB 724963 A GB724963 A GB 724963A GB 979512 A GB979512 A GB 979512A
Authority
GB
United Kingdom
Prior art keywords
range
cutting tools
weight
carried out
given
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
GB7249/63A
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.)
SVANDVIKENS JERNVERKS AKTIEBOL
Original Assignee
SVANDVIKENS JERNVERKS AKTIEBOL
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 SVANDVIKENS JERNVERKS AKTIEBOL filed Critical SVANDVIKENS JERNVERKS AKTIEBOL
Publication of GB979512A publication Critical patent/GB979512A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B21/00—Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor
    • B26B21/54—Razor-blades
    • B26B21/58—Razor-blades characterised by the material
    • 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
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/005—Modifying the physical properties by deformation combined with, or followed by, heat treatment of ferrous alloys
    • 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
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0205—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips of ferrous alloys
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S148/00—Metal treatment
    • Y10S148/902—Metal treatment having portions of differing metallurgical properties or characteristics
    • Y10S148/905—Cutting tool

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Heat Treatment Of Steel (AREA)

Abstract

Blanks for flexible cutting tools are prepared from an unstable nickel chromium austenitic steel containing up to 0.5% by weight of carbon by heat treatment in the range 950-1250 DEG C., quenching, cold working to bring about a 75-96% reduction in cross-sectional area at a temperature such that the product contains at least 40% of martensite, and finally tempering within the range 350-550 DEG C. Preferred compositions are those containing in percentage by weight <TABS:0979512/C6-C7/1> The cold deformation may be achieved by rolling which is preferably carried out in the range 15-30 DEG C. but which may be carried out at temperatures down to -10 DEG C. The rolling process may be so arranged, e.g. by the use of shaped rolls, that a greater amount of deformation is given to that part of the blank forming the cutting edge, whereby a higher martensite concentration occurs there. Cutting edges may be formed, and a final grinding given, before or after the tempering treatment.
GB7249/63A 1962-02-27 1963-02-22 Improvements in or relating to the manufacture of steel cutting tools Expired GB979512A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE213862 1962-02-27

Publications (1)

Publication Number Publication Date
GB979512A true GB979512A (en) 1965-01-06

Family

ID=20259428

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7249/63A Expired GB979512A (en) 1962-02-27 1963-02-22 Improvements in or relating to the manufacture of steel cutting tools

Country Status (2)

Country Link
US (1) US3281287A (en)
GB (1) GB979512A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1553806B1 (en) * 1966-01-04 1971-12-09 Sandvikens Jernverks Ab USE OF A STEEL FOR RAZOR BLADES AND THEIR PRODUCTION

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1096411A (en) * 1963-08-02 1967-12-29 Wilkinson Sword Ltd Improvements in or relating to the production of cutting edges
US3508978A (en) * 1966-03-31 1970-04-28 Nippon Musical Instruments Mfg Process for manufacturing ski edges with l-shaped cross section
US3488231A (en) * 1966-11-22 1970-01-06 Atomic Energy Commission Treatment of steel
GB1241291A (en) * 1967-08-16 1971-08-04 Firth Brown Ltd Steels resistant to stress corrosion cracking
SE330900C (en) * 1968-05-31 1978-12-18 Uddeholms Ab SET OF HEAT TREATMENT BAND OR PLATE OF STAINLESS STEEL, HEARDABLE CHROME STEEL
SE373387B (en) * 1973-06-08 1975-02-03 Sandvik Ab PROCEDURE FOR MANUFACTURE OF BAND OR THREAD, EXV. ROUND FOR SPRING END
US4077812A (en) * 1975-03-25 1978-03-07 Ntn Toyo Bearing Co. Ltd. Method of working steel machine parts including machining during quench cooling
US4159218A (en) * 1978-08-07 1979-06-26 National Steel Corporation Method for producing a dual-phase ferrite-martensite steel strip
ATE121983T1 (en) * 1992-02-14 1995-05-15 Wilkinson Sword Gmbh SHAVING HEAD, IN PARTICULAR A RAZOR BLADE UNIT, OF A WET SHAVING APPARATUS.
AU2006249789A1 (en) * 2005-05-27 2006-11-30 Eveready Battery Company, Inc. Razor blades and compositions and processes for the production of razor blades

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2795519A (en) * 1954-03-27 1957-06-11 Sandvikens Jernverks Ab Method of making corrosion resistant spring steel and product thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1553806B1 (en) * 1966-01-04 1971-12-09 Sandvikens Jernverks Ab USE OF A STEEL FOR RAZOR BLADES AND THEIR PRODUCTION

Also Published As

Publication number Publication date
US3281287A (en) 1966-10-25

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