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Metals 2018, 8(8), 626; https://doi.org/10.3390/met8080626

Incremental Forming of Titanium Ti6Al4V Alloy for Cranioplasty Plates—Decision-Making Process and Technological Approaches

Department of Industrial Machines and Equipment, Engineering Faculty, “Lucian Blaga” University of Sibiu, Victoriei 10, 550024 Sibiu, Romania
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Received: 4 July 2018 / Revised: 4 August 2018 / Accepted: 6 August 2018 / Published: 9 August 2018
(This article belongs to the Special Issue Titanium Alloys for Biomedical Implants and Devices)

Abstract

Ti6Al4V titanium alloy is considered a biocompatible material, suitable to be used for manufacturing medical devices, particularly cranioplasty plates. Several methods for processing titanium alloys are reported in the literature, each one presenting both advantages and drawbacks. A decision-making method based upon AHP (analytic hierarchy process) was used in this paper for choosing the most recommended manufacturing process among some alternatives. The result of AHP indicated that single-point incremental forming (SPIF) at room temperature could be considered the best approach when manufacturing medical devices. However, Ti6Al4V titanium alloy is known as a low-plasticity material when subjected to plastic deformation at room temperature, so special measures had to be taken. The experimental results of processing parts from Ti6Al4V titanium alloy by means of SPIF and technological aspects are considered. View Full-Text
Keywords: single-point incremental forming; AHP; cranioplasty plates; decision-making; titanium alloys; medical devices single-point incremental forming; AHP; cranioplasty plates; decision-making; titanium alloys; medical devices
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Racz, S.G.; Breaz, R.E.; Tera, M.; Gîrjob, C.; Biriș, C.; Chicea, A.L.; Bologa, O. Incremental Forming of Titanium Ti6Al4V Alloy for Cranioplasty Plates—Decision-Making Process and Technological Approaches. Metals 2018, 8, 626.

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