Next Article in Journal
Energy Regeneration Hydraulic System via a Relief Valve with Energy Regeneration Unit
Previous Article in Journal
Vibro-Acoustic Numerical Analysis for the Chain Cover of a Car Engine
Article Menu
Issue 6 (June) cover image

Export Article

Open AccessArticle
Appl. Sci. 2017, 7(6), 608; doi:10.3390/app7060608

The Influences of Assisting Gas Type and Process Parameters on the Fiber Laser Microprofiling of Thin CoCr Tubes for Vascular Stents

School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
Jiangsu Provincial Key Laboratory for Interventional Medical Devices, Huaiyin Institute of Technology, Huai’an 223001, China
Author to whom correspondence should be addressed.
Academic Editor: Hamid Oughaddou
Received: 24 March 2017 / Revised: 4 June 2017 / Accepted: 7 June 2017 / Published: 12 June 2017
(This article belongs to the Section Optics and Lasers)
View Full-Text   |   Download PDF [5347 KB, uploaded 12 June 2017]   |  


Cobalt chromium (CoCr) alloy tubes have been widely used in manufacturing of vascular stents, due to their excellent bio-mechanical properties, especially their high strength. In recent years, fiber lasers have been used in the micro-machining of vascular stents, given their better cutting quality than neodymium-doped yttrium aluminum garnet (Nd:YAG) lasers. A comparison study of CoCr fiber laser cutting with oxygen and argon is presented, and the differences, such as surface topography, chemical composition, and kerfs geometry, between the oxygen cuts and argon cuts are studied. Three types of topographies are obtained for the oxygen cuts, and the underlying reason for the different topographies are discussed. The influences of key parameters including power, repetition rate, pulse width, and cutting speed on the cutting quality are analyzed. The present research can also provide an optimization guideline for the micro-profiling of CoCr vascular stents. View Full-Text
Keywords: CoCr alloy; vascular stents; fiber laser; optimize guideline CoCr alloy; vascular stents; fiber laser; optimize guideline

Figure 1

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).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Liu, L.; Li, D.; Tong, Y.; Zhu, Y. The Influences of Assisting Gas Type and Process Parameters on the Fiber Laser Microprofiling of Thin CoCr Tubes for Vascular Stents. Appl. Sci. 2017, 7, 608.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Appl. Sci. EISSN 2076-3417 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top