GB1049897A - Improvements in the method of producing punching-out cutters - Google Patents

Improvements in the method of producing punching-out cutters

Info

Publication number
GB1049897A
GB1049897A GB197664A GB197664A GB1049897A GB 1049897 A GB1049897 A GB 1049897A GB 197664 A GB197664 A GB 197664A GB 197664 A GB197664 A GB 197664A GB 1049897 A GB1049897 A GB 1049897A
Authority
GB
United Kingdom
Prior art keywords
strip
rate
passing
cooled
punching
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
GB197664A
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.)
Miller Martin GmbH
Original Assignee
Miller Martin GmbH
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 Miller Martin GmbH filed Critical Miller Martin GmbH
Publication of GB1049897A publication Critical patent/GB1049897A/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
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C—CHEMISTRY; METALLURGY
    • C14—SKINS; HIDES; PELTS; LEATHER
    • C14B—MECHANICAL TREATMENT OR PROCESSING OF SKINS, HIDES OR LEATHER IN GENERAL; PELT-SHEARING MACHINES; INTESTINE-SPLITTING MACHINES
    • C14B5/00—Clicking, perforating, or cutting leather
    • C14B5/02—Stamps or dies for leather articles

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Metallurgy (AREA)
  • Thermal Sciences (AREA)
  • Heat Treatment Of Articles (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Metal Rolling (AREA)

Abstract

Steel strip for bending into the form of punching-out cutters for sheet material is formed with at least one tapered edge and is then cooled from the hardening temperature in such a way that the body of the strip cools at a rate slightly below critical while at the cutting edge the critical rate is exceeded. The strip may then be tempered. A particular composition exemplified consists of .carbon.0.7 .manganese.0.25 .silicon.0.25 .iron.balance It is differentially cooled from about 830 DEG C by passing through a quenching medium at a rate three times that necessary for complete hardening. The strip may be given the desired cross-section by passing it between suitably shaped rolls.
GB197664A 1963-01-16 1964-01-16 Improvements in the method of producing punching-out cutters Expired GB1049897A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT33363A AT250141B (en) 1963-01-16 1963-01-16 Process for the production of punching knives, which are used for punching parts of any shape from leather, hides, textiles, plastics, paper, cardboard and the like. a. Serve materials of a similar type

Publications (1)

Publication Number Publication Date
GB1049897A true GB1049897A (en) 1966-11-30

Family

ID=3487801

Family Applications (1)

Application Number Title Priority Date Filing Date
GB197664A Expired GB1049897A (en) 1963-01-16 1964-01-16 Improvements in the method of producing punching-out cutters

Country Status (4)

Country Link
AT (1) AT250141B (en)
DE (1) DE1435289B2 (en)
GB (1) GB1049897A (en)
SE (1) SE318362B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2292519A (en) * 1994-08-23 1996-02-28 Acme Gerrard Ltd Metal strapping

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3919536A1 (en) * 1989-06-15 1990-12-20 Rolf Karl Stursberg Fa Cardboard cutting tool - is hardened by HF in chamber filled with protective gas

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2292519A (en) * 1994-08-23 1996-02-28 Acme Gerrard Ltd Metal strapping
GB2292519B (en) * 1994-08-23 1998-01-28 Acme Gerrard Ltd Strapping

Also Published As

Publication number Publication date
SE318362B (en) 1969-12-08
DE1435289A1 (en) 1969-05-08
AT250141B (en) 1966-10-25
DE1435289B2 (en) 1971-06-03

Similar Documents

Publication Publication Date Title
GB1083466A (en) Method of manufacturing steel with improved mechanical properties
SE7407267L (en)
GB933843A (en) Columbium containing steels
GB1165728A (en) Fined Grained Steel and process for preparation thereof
GB1009924A (en) Steel alloys and methods of making same
GB1077979A (en) Stainless steel and method
JPS552768A (en) Manufacture of rail
GB1049897A (en) Improvements in the method of producing punching-out cutters
ES355521A1 (en) Improved Method for the Manufacture of Razor Blades and Like Tools
ES408152A1 (en) Razor blades and process for making same
GB1123275A (en) Method of producing soft steel with a silicon content of 0.5 to 4.5% for the manufacture of sheets or strips for electromagnetic applications
ES487392A1 (en) Method for making profiles and the use of a fine grained steel for profiles.
GB994925A (en) Weldable and hardenable steels, and methods of producing them
GB1365160A (en) Wear resisting magnetic material having high permeability
KR830004429A (en) Manufacturing method of spheroidized annealed steel wire
GB1041636A (en) Treatment of stainless ferritic sheet and strip material
GB1017982A (en) Ultra hard high speed steel
GB1071449A (en) Corrosion-resistant nickel alloys
GB960174A (en) Improvements in the production of hard steel particles
JPS556465A (en) Production of bar steel of superior toughness for shaft
GB1431390A (en) Alloy steel
GR19357B (en) IRON PRODUCTION.
GB1079036A (en) Improvements in or relating to alloy steels
GB886283A (en) Improvements in or relating to saw blades
ES294930A1 (en) Method of production of deeply hardened steel elements (Machine-translation by Google Translate, not legally binding)