Journal
MANUFACTURING ENGINEERING SOCIETY INTERNATIONAL CONFERENCE 2017 (MESIC 2017)
Volume 13, Issue -, Pages 190-196Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.promfg.2017.09.038
Keywords
Fiber Laser; Cutting; Polymers; Tube; Stent
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Funding
- Ministry of Economy and Competitiveness (MINECO), Spain [DPI2013-45201-P]
- University of Girona (UdG), Spain [MPCUdG2016/036]
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Nowadays, stents are the main treatment modality for atherosclerosis. Although metallic stents are effective many concerns still remain. Bioresorbable stents (BRSs) were introduced to overcome these limitations with important advantages. In this paper the authors aim to study the effect of fiber laser cutting over polycaprolactone (PCL), polylactide acid (PLA), and PLA-PCL tubes for stent manufacturing. The effect of Power, Cutting Speed, and Number of Passes over Penetration, Precision, and Dross is presented. Results have shown the difficulty of cut PLA with 1.08 um wavelength lasers, being impossible to achieve a complete penetration both the PLA tubes, as composite tubes. Nevertheless, with PCL tubes, fibre laser has been able to achieve dimensional precisions above than 95.75 %. Fibre laser has been shown to be a profitable tool to manufacture polycaprolactone stents. (C) 2017 The Authors. Published by Elsevier B.V.
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