An experimental study of bushing formation during friction drilling of titanium grade 2 for medical applications

An experimental study of bushing formation during friction drilling of titanium grade 2 for medical applications

Hans Vanhove, Caroline Mossay, Joost R. Duflou

Abstract. Recent advances towards patient specific, Titanium sheet based medical implants introduce a new challenge for the fixation of these implants to bones. Mainly the use of locking screws requires an implant thickness of approximately 2 mm for screw thread formation. Friction drilling is a hole-making process that displaces material to create a bushing below the sheet rather than extracting material. Screw thread can be formed in this bushing for the medical locking screws. This experimental study explores the influence of axial force, rotational speed and workpiece temperature on the bushing formation during friction drilling of Titanium grade 2 sheets. Finally, the influence of the optimal parameters on the material hardness is characterized.

Keywords
Friction, Drilling, Titanium

Published online 3/17/2023, 8 pages
Copyright © 2023 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA

Citation: Hans Vanhove, Caroline Mossay, Joost R. Duflou, An experimental study of bushing formation during friction drilling of titanium grade 2 for medical applications, Materials Research Proceedings, Vol. 25, pp 353-360, 2023

DOI: https://doi.org/10.21741/9781644902417-44

The article was published as article 44 of the book Sheet Metal 2023

Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.

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