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Cost and Weight Optimization of Magnesium Power Train Components by Using Aluminum Thread Forming Fastener Technology
Technical Paper
2009-01-1256
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The current state of technology for fastening magnesium power train components is the use of metric steel or aluminum bolts. Due to physical and chemical properties of the used materials, difficulties like high clamping load loss at elevated temperatures and strong corrosive attack which requires costly corrosion protection systems must be taken into account. The objective of this project was to develop and to evaluate a high-strength thread forming aluminum bolt for magnesium components regarding mechanical properties, relaxation and corrosion behavior. Benefits of this bolt connection system are weight reduction in comparison to steel bolts, lower loss of clamping load, less contact corrosion and cost reduction by using thread forming technology (elimination of drilling and thread cutting operations). This paper discusses the applicability of high-strength thread forming bolts in magnesium nut material focused on mechanical properties of the aluminum bolt, relaxation and corrosion behavior of the bolt connection.
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Authors
Citation
Jakob, T., Gerstmayr, G., Leitner, H., Oberhuber, P. et al., "Cost and Weight Optimization of Magnesium Power Train Components by Using Aluminum Thread Forming Fastener Technology," SAE Technical Paper 2009-01-1256, 2009, https://doi.org/10.4271/2009-01-1256.Also In
References
- Zhu S.M. Gibson M.A. Nie J.F. Easton M. A. Abbott T.B. “Microstructural analysis of the creep resistance of die-cast Mg-4Al-2RE alloy” Scripta Materialia 58 2008 477 480
- Moreno I.P. Nandy T.K. Jones J.W. Allison J.E. Pollock T.M. “Microstructural stability and creep of rare-earth containing magnesium alloy” Scripta Materialia 48 2003 1029 1034
- Bakke P. Fischersworring-Bunk A. deLima I. Lilholt H. Bertilsson I. Abdulwahab F. Labelle P. “The European Union Mg-Engine Project – Generation of Material Property Data for Four Die Cast Mg-Alloys” SAE technical paper 2006-01-0070 2004
- vonBuch F. Schumann S. Friedrich H. et al “New Die Casting Alloy MRI153 for Power-Train Applications” Magnesium Technology 2002
- Heinrich F. “Aluminiumschrauben mit gesteigerten mechanischen Eigenschaften für höher beanspruchte Leichtmetallverbindungen” 8. Informations- und Diskussionsveranstaltung Darmstadt 10 05 2006
- Westphal K. “Verschraubung von Magnesium-komponenten” Metall 56. Jahrgang 1–2 2002 32ff
- Friedrich H. “Werkstofftechnische Anforderungen an gewindefurchende Verbindungselemente” DVM Bericht 671 2004 23
- Hinteregger C. “Innovative Leichtmetall-verschraubungen im Fahrzeuggetriebebau” PhD-Thesis University of Leoben 2008
- Forschungsvereinigung Antriebstechnik Drive Technology Research Association FVA project 470 – maximum strength aluminium bolts
- VDA Prüfblatt 621-415 Prüfung des Korrosionsschutzes von Kraftfahrzeuglackierungen bei zyklisch wechselnder Beanspruchung
- Aluminium Taschenbuch 15 1 Grundlagen und Werkstoffe 3-87017-241-X Düsseldorf 1995