GB1114520A - A method of improving the fatigue strength of a spring steel - Google Patents

A method of improving the fatigue strength of a spring steel

Info

Publication number
GB1114520A
GB1114520A GB5213666A GB5213666A GB1114520A GB 1114520 A GB1114520 A GB 1114520A GB 5213666 A GB5213666 A GB 5213666A GB 5213666 A GB5213666 A GB 5213666A GB 1114520 A GB1114520 A GB 1114520A
Authority
GB
United Kingdom
Prior art keywords
fatigue strength
spring steel
steel
improving
hot working
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
GB5213666A
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.)
Ford Motor Co Ltd
Ford Motor Co
Original Assignee
Ford Motor Co Ltd
Ford Motor 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 Ford Motor Co Ltd, Ford Motor Co filed Critical Ford Motor Co Ltd
Publication of GB1114520A publication Critical patent/GB1114520A/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
    • C21D9/02—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for springs

Abstract

1,114,520. Making springs; altering physical structure. FORD MOTOR CO. Ltd. 22 Nov., 1966 [1 Dec., 1965], No. 52136/66. Headings B3A and B3V. The fatigue strength of spring steel is improved by hot working the steel in the austenitic condition at a temperature of 1350-1550‹ F., quenching to form a martensitic structure and finally tempering the quenched martensite. The hot working may be preceded by deformation at a temperature higher than 1550‹ F. The steel may be utilized in'motor vehicle leaf and torsion bar springs.
GB5213666A 1965-12-01 1966-11-22 A method of improving the fatigue strength of a spring steel Expired GB1114520A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US51075165A 1965-12-01 1965-12-01

Publications (1)

Publication Number Publication Date
GB1114520A true GB1114520A (en) 1968-05-22

Family

ID=24032036

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5213666A Expired GB1114520A (en) 1965-12-01 1966-11-22 A method of improving the fatigue strength of a spring steel

Country Status (2)

Country Link
DE (1) DE1508392A1 (en)
GB (1) GB1114520A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0431224A1 (en) * 1989-12-05 1991-06-12 Horikiri Spring Mfg. Co. Ltd. Method of manufacturing a leaf of a leaf spring

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57126913A (en) * 1981-01-27 1982-08-06 Kobe Steel Ltd Production of high-toughness high-strength wire or rod steel
DE102019203558A1 (en) * 2019-03-15 2020-09-17 Christian Bauer Gmbh + Co. Kg Flat-form spring, in particular plate or wave springs

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0431224A1 (en) * 1989-12-05 1991-06-12 Horikiri Spring Mfg. Co. Ltd. Method of manufacturing a leaf of a leaf spring

Also Published As

Publication number Publication date
DE1508392A1 (en) 1969-10-23

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