Skip to main content

High-Performance Permanent Magnets by Cold Forming

  • Chapter
  • First Online:
60 Excellent Inventions in Metal Forming
  • 3373 Accesses

Abstract

The combination of a further developed Equal Channel Angular Swaging (ECAS) process and the subsequent infeed rotary swaging is a promising process chain for the continuous production of permanent magnets. The ECAS process enables a grain refinement as well as an induction of high defect densities in materials. Both effects lead to a higher coercive field strength. In comparison to other SPD-processes lower forming forces are needed and a continuous production is possible. Highly textured magnetically anisotropic samples are realized by a subsequent infeed rotary swaging process.

This is a preview of subscription content, log in via an institution to check access.

Access this chapter

eBook
USD 16.99
Price excludes VAT (USA)
  • Available as EPUB and PDF
  • Read on any device
  • Instant download
  • Own it forever
Hardcover Book
USD 109.99
Price excludes VAT (USA)
  • Durable hardcover edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info

Tax calculation will be finalised at checkout

Purchases are for personal use only

Institutional subscriptions

References

  1. Ilschner, B., Singer, R. F., 2010, Werkstoffwissenschaften und Fertigungstechnik. 5. Auflage; Springer-Verlag Berlin Heidelberg; pp. 291–317.

    Google Scholar 

  2. Moosa, I., 2013, Powder Metallurgy and its Application in the Production of Permanent Magnets. International Journal of Advanced Research in Engineering and Technology Volume 4, Issue 6, pp. 127–141.

    Google Scholar 

  3. Kuhrt, C., 1995, Processing of permanent magnet materials based on rare earth-transition metal intermetallics. Intermetallics 3 pp. 255–263.

    Article  Google Scholar 

  4. Suehiro, K., Nishimura, S., Horita, Z., 2008, Change in Magnetic Property of Cu-6.5 mass%Co Alloy through Processing by ECAP. Materials Transactions, Vol. 49, No. 1 pp. 102 to 106.

    Article  Google Scholar 

  5. Stolyarov, V. V., Gunderov, D. V., Popov, A. G., Puzanova, T. Z., Raab, G. I., Yavari, A. R., Valiev, R. Z., 2002, High coercive states in Pr–Fe–B–Cu alloy processed by equal channel angular pressing. Journal of Magnetism and Magnetic Materials 242–245, 1399–1401.

    Google Scholar 

  6. Scheriau, S., Kriegisch, M., Kleber, S., Mehboob, N., Grössinger, R., Pippan, R., 2008, Magnetic characteristics of HPT deformed soft-magnetic materials. Journal of Magnetism and Magnetic Materials 322, 2984–2988.

    Article  Google Scholar 

  7. Gutfleisch, O., Bollero, A., Handstein, A., Hinz, D., Kirchner, A., Yan, A., Müller, K.-H., Schultz, L., 2002, Nanocrystalline high performance permanent magnets. Journal of Magnetism and Magnetic Materials 242–245, 1277–1283.

    Google Scholar 

  8. Görtan, M., Bruder, E., Groche, P., Müller, C., 2010, New Severe Plastic Deformation Process to Produce Ultrafine Grained Materials. Steel Research International 81–90, 478–481.

    Google Scholar 

  9. Bruder, E., Görtan, M., Groche, P., Müller, C. , 2011, Severe Plastic Deformation by Equal Channel Angular Swaging. Materials Science Forum Vols. 667–669, pp 103–107.

    Google Scholar 

  10. Görtan, M., 2014, Severe plastic deformation of metallic materials by equal channel angular swaging: Theory, experiment and numerical simulation, Darmstadt, Shaker.

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Lennart Wießner .

Editor information

Editors and Affiliations

Rights and permissions

Reprints and permissions

Copyright information

© 2015 Springer-Verlag Berlin Heidelberg

About this chapter

Cite this chapter

Groche, P., Wießner, L. (2015). High-Performance Permanent Magnets by Cold Forming. In: Tekkaya, A., Homberg, W., Brosius, A. (eds) 60 Excellent Inventions in Metal Forming. Springer Vieweg, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-46312-3_52

Download citation

  • DOI: https://doi.org/10.1007/978-3-662-46312-3_52

  • Published:

  • Publisher Name: Springer Vieweg, Berlin, Heidelberg

  • Print ISBN: 978-3-662-46311-6

  • Online ISBN: 978-3-662-46312-3

  • eBook Packages: EngineeringEngineering (R0)

Publish with us

Policies and ethics