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Friction Stir Welding and Processing IX pp 197–209Cite as

Friction Stir Welding Process Development of AA7075 for Hot Stamping Applications

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Part of the book series: The Minerals, Metals & Materials Series ((MMMS))

Abstract

In order to compete with advanced high strength steels (AHSS) such as dual-phase (DP) or temperature induced plasticity (TRIP) in structural parts, some automotive manufacturers are looking to introduce high strength aluminum alloys that have high peak-aged mechanical properties like AA7075. Formability of these high strength aluminum alloys is possible through hot stamping. Hot stamping refers to simultaneously forming and quenching a blank that is initially at an elevated temperature. Material efficiency can be obtained by using tailor welded blank sections which could lead to weight reductions between 10 and 12%. Friction stir welding (FSW), as a solid-state welding process, has already been proven suitable without hot cracking issues when welding AA7075. However, abnormal grain growth (AGG) issues arise when post-weld operations at high temperature are required such as solution heat treatment or hot stamping operations. This paper details the development of FSW process parameters which will be adapted to hot stamping to effectively join tailor welded AA7075 blanks.

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References

  1. Harrison N, Luckey S (2014) Hot stamping of a B-pillar outer from high strength aluminum sheet AA7075. SAE Int J Mater Manuf 7(3):567–573

    Article  Google Scholar 

  2. Hovanski Y et al (2014) Comparing laser welding technologies with friction stir welding for production of aluminum tailor-welded blanks. SAE Int J Mater Manuf 7(3):537–544

    Article  Google Scholar 

  3. Cheng CM et al (2005) Hot cracking of welds on heat treatable aluminum alloys. Sci Technol Weld Joining 10(3):344–352

    Article  Google Scholar 

  4. Pujari KS, Patil DV (2013) A review on GTAW technique for high strength aluminum alloys (AA 7xxx Series). Int J Eng Res Technol 2(8):2477–2490

    Google Scholar 

  5. Tavares SMO (2011) Design and advanced manufacturing of aircraft structures using friction stir welding. PhD thesis, University of Porto, 1–91

    Google Scholar 

  6. Khaled T (2005) An outsider look at friction stir welding. Report #: ANM-112N-05-06, Federal Aviation Administration

    Google Scholar 

  7. Nadeau F (2015) Developments in friction stir and spot welding: tailored blanks & al/steel joining techniques. Paper presented at the 11th global automotive lightweight materials, Detroit, Michigan, 14 Apr 2015, p 8

    Google Scholar 

  8. Nadeau F, Larouche D, Gougeon P (2013) Abnormal grain growth in friction stir welds subjected to hot forming applications: A AA5083 microstructural case study. In: 12th international conference on aluminum

    Google Scholar 

  9. Smith CB et al (2010) Friction stir processing of commercial grade marine alloys to enable superplastic forming. Key Eng Mater 433:141–151

    Article  Google Scholar 

  10. Shibayanagi T, Naka M (2007) Control of grain size and texture in al alloys utilizing friction stir processing. Mater Sci Forum 539–543:3769–3774

    Article  Google Scholar 

  11. Chen PS, Russell C (2012) Mitigating abnormal grain growth for friction stir welded Al-Li 2195 spun formed domes. In: 9th international symposium on friction stir welding, pp 490–508

    Google Scholar 

  12. Cui S, Chen ZW, Robson JD (2010) A model related tool torque and its associated power and specific energy to rotation and forward speeds during friction stir welding welding/processing. Int J Mach Tools Manuf 50:1023–1030

    Article  Google Scholar 

  13. Kalya P et al (2007) Specific energy and temperature mechanistic models for friction stir processing of Al-F357. In: Proceedings of the 2007 minerals, metals, and materials society annual meeting, pp 113–125

    Google Scholar 

  14. Mandache C et al (2012) Non-destructive detection of lack of penetration defects in friction stir welds. Sci Technol Weld Joining 0(0):1–9

    Google Scholar 

  15. Levesque D et al (2008) Assessment of friction stir welds with non-destructive methods. In: Proceedings of the 47th conference of metallurgists

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. National Research Council of Canada (NRC), Ottawa, Canada

    François Nadeau

  2. Ford Motor Company, Dearborn, USA

    Nia R. Harrison

Authors
  1. François Nadeau
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  2. Nia R. Harrison
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Corresponding author

Correspondence to François Nadeau .

Editor information

Editors and Affiliations

  1. Brigham Young University , Provo, Utah, USA

    Yuri Hovanski

  2. Denton, Texas, USA

    Rajiv Mishra

  3. Tohoku University , Sendai, Japan

    Yutaka Sato

  4. Pacific Northwest National Laboratory , Richland, Washington, USA

    Piyush Upadhyay

  5. University of Wisconsin Green Bay , Green Bay, Wisconsin, USA

    David Yan

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© 2017 The Minerals, Metals & Materials Society

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Nadeau, F., Harrison, N.R. (2017). Friction Stir Welding Process Development of AA7075 for Hot Stamping Applications. In: Hovanski, Y., Mishra, R., Sato, Y., Upadhyay, P., Yan, D. (eds) Friction Stir Welding and Processing IX. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-319-52383-5_20

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