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Material properties of induction tempered high tensile valve spring wire
Örebro University, Department of Technology.
Örebro University, Department of Technology.
2006 (English)In: Steel Research International, ISSN 1611-3683, Vol. 77, no 11, p. 836-843Article in journal (Refereed) Published
Abstract [en]

Most of today's hardened valve spring wires are tempered in a lead bath. The lead bath provides a stable and accurate degree of tempering of the wire, but it has environmental disadvantages and limitations in flexibility. This paper describes how induction heating can replace lead bath and how this may affect the material properties. The study includes FEM-simulations, calculation of the tempering parameter and experiments with induction tempering of three different SiCr valve spring steels carried out under pilot production. The mechanical properties of the test samples were measured. Fatigue testing of one of the steels was performed on finished springs. The results were evaluated by comparing induction-tempered wire with the conventional lead tempered reference wire. The induction tempered wire fulfilled the product requirements and corresponded in performance with the lead tempered wire.

Place, publisher, year, edition, pages
Düsseldorf: Verlag Stahleisen , 2006. Vol. 77, no 11, p. 836-843
Keywords [en]
Wire, Valves (mechanical), Tempering, Lead, Thermoanalysis, Steel, Finite element method, Computer simulation, Induction tempering, Spring steel, Super clean steel, High strength steel, Silicon chromium steel
National Category
Engineering and Technology
Research subject
maskinteknik
Identifiers
URN: urn:nbn:se:oru:diva-4387OAI: oai:DiVA.org:oru-4387DiVA, id: diva2:138686
Available from: 2007-07-12 Created: 2007-07-12 Last updated: 2017-10-18Bibliographically approved
In thesis
1. Replacement of lead baths with environment friendly alternative heat treatment processes in steel wire production
Open this publication in new window or tab >>Replacement of lead baths with environment friendly alternative heat treatment processes in steel wire production
2005 (English)Licentiate thesis, comprehensive summary (Other academic)
Place, publisher, year, edition, pages
Örebro: Örebro universitetsbibliotek, 2005. p. 32
Series
Örebro Studies in Technology, ISSN 1650-8580 ; 17
National Category
Engineering and Technology
Research subject
Mechanical Engineering
Identifiers
urn:nbn:se:oru:diva-3376 (URN)
Presentation
(English)
Available from: 2007-07-17 Created: 2007-07-17 Last updated: 2017-10-18Bibliographically approved

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Jarl, Magnus

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
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