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Examination of the Material Removal of unreinforced, thermoplastic Polymers by Scratch Tests

  • Karolin KampladeEmail author
  • Dirk Biermann
Production Process
  • 14 Downloads

Abstract

The use of plastics in the industry is steadily growing. Based on the material characteristics, such as low weight, conventional materials like steel are being replaced. For that reason, plastic components need to be machined to fulfill requirements regarding size shape and surface quality. Grinding processes are used to achieve high surface quality and dimensional and shape accuracy. The following article deals with scratch tests to basically analyse the grain engagement when grinding thermoplastics. For this, corundum grains are used in two different scratch test setups for fundamental analysis of the material removal process. The scratching process is evaluated by the relative chip volumes of the scratch grooves. In addition to that, the forces occuring during the process and the required specific scratch energy are analysed.

Keywords

Grinding Scratch test Polymer Thermoplastic Single grain Scratch energy 

Notes

Acknowledgements

The scientific results presented in this manuscript are based on the research project “Multi-Scale Analysis of the Material Separation Mechanisms in Grinding of Unreinforced Thermoplastics”, which was funded by the German Research Foundation (DFG), (Project: DFG BI 498 86-1)

References

  1. 1.
    Domininghaus H, Elsner P, Eyerer P, Hirth T (2012) Kunststoffe—Eigenschaften und Anwendungen, vol 8. Springer, Berlin, pp 1–20 (ISBN 978-3-642-16172-8) Google Scholar
  2. 2.
    Bauer E, Osswald TA, Rudolph N (2019) Plastics handbook—the resource for plastics engineers. Carl Hanser Verlag, Munich, pp 13–41CrossRefGoogle Scholar
  3. 3.
    Kobayashi A (1967) Machining of plastic. McGraw-Hill Book Company, New York, pp 12–175Google Scholar
  4. 4.
    Alauddin M, Choudhury IA, Baradie MAEl, Hashmi MSJ (1994) Plastics and their machining. J Mater Process Technol 54:40–46CrossRefGoogle Scholar
  5. 5.
    Bílek O, Baďurová J, Čop J (2016) A Study on the Grindability of Engineering Plastics and Metals. Key Engineering Materials 686:137–142Google Scholar
  6. 6.
    Kobayashi A, Saito K (1962) On the cutting mechanism of high polymers, 1377–1395. J Poly Sci Jpn 58:1962Google Scholar
  7. 7.
    Fetecau C, Stan F, Munteanu A, Popa V (2008) Machining and surface integrity of polymeric materials. Int J Mater Form Suppl 1:515–518.  https://doi.org/10.1007/s12289-008-0192-z CrossRefGoogle Scholar
  8. 8.
    Klocke F, König W (2005) Fertigungsverfahren—Schleifen, Honen, Läppen. Springer, Berlin, pp 185–202Google Scholar
  9. 9.
    Morgan JE (1986) The roll grinding of polymer materials. Plast Rubber Process Appl 6:29–33Google Scholar
  10. 10.
    Öpöz TT, Chen X (2012) Experimental investigation of material removal mechanism in single grit grinding. Int J Mach Tools Manuf 63:32–40CrossRefGoogle Scholar
  11. 11.
    Rasim M, Klocke F, Mattfeld P (2014) Analysis of the grain shape influence on the chip formation in grinding. J Mater Process Technol 226:60–68 ISSN: 0924-0136CrossRefGoogle Scholar
  12. 12.
    Kansteiner M, Kipp M, Herbrandt S, Ferreira M, Biermann D (2015) Process Forces and Groove Development in single grain scratch tests of concrete and reinforced concrete. Appl Mech Mater 794:207–214CrossRefGoogle Scholar
  13. 13.
    Murtfeldt Kunststoffe GmbH & Co.KG, Technical informationGoogle Scholar
  14. 14.
    Wang H, Subhash G, Chandra A (2001) Characteristics of single-grit rotating scratch with a conical tool on pure titanium. Wear 249:566–581CrossRefGoogle Scholar
  15. 15.
    ZumGahr KH (1987) Tribology series, volume 10 microstructure and wear of materials. Elsevier, Amsterdam (ISBN 0-444-42754-6) Google Scholar
  16. 16.
    Martin K, Yegenoglu K (1992) HSG—Technologie—Handbuch zur praktischen Anwendung. Firma Guehring Automation GmbH, FrohnstettenGoogle Scholar

Copyright information

© German Academic Society for Production Engineering (WGP) 2019

Authors and Affiliations

  1. 1.Institut of Machining Technology (ISF)DortmundGermany

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