Experimental Study of Back Wall Dross and Surface Roughness in Fiber Laser Microcutting of 316L Miniature Tubes

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This article uses extensive experimentation to evaluate the effect of fiber laser micro-cutting parameters over average surface roughness and back wall dross in AISI 316L stainless steel mixture tubes.

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15 p.

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García-López, Erika; Medrano-Tellez, Alexis G.; Ibarra-Medina, Juansethi R.; Siller, Héctor R. & Rodríguez, Ciro A. December 26, 2017.

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This article uses extensive experimentation to evaluate the effect of fiber laser micro-cutting parameters over average surface roughness and back wall dross in AISI 316L stainless steel mixture tubes.

Physical Description

15 p.

Notes

Abstract: Laser cutting is a key technology for the medical devices industry, providing the flexibility,
and precision for the processing of sheets, and tubes with high quality features. In this study,
extensive experimentation was used to evaluate the effect of fiber laser micro-cutting parameters
over average surface roughness (Ra) and back wall dross (Dbw) in AISI 316L stainless steel miniature
tubes. A factorial design analysis was carried out to investigate the laser process parameters: pulse
frequency, pulse width, peak power, cutting speed, and gas pressure. A real laser beam radius of
32.1 μm was fixed in all experiments. Through the appropriate combination of process parameters
(i.e., high level of pulse overlapping factor, and pulse energy below 32 mJ) it was possible to achieve
less than 1 μm in surface roughness at the edge of the laser-cut tube, and less than 3.5% dross deposits
at the back wall of the miniature tube.

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  • Micromachines, 2017. Basel, Switzerland: Multidisciplinary Digital Publishing Institute

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  • Publication Title: Micromachines
  • Volume: 9
  • Issue: 4
  • Pages: 1-15
  • Peer Reviewed: Yes

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UNT Scholarly Works

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Submitted Date

  • September 18, 2017

Accepted Date

  • December 19, 2017

Creation Date

  • December 26, 2017

Added to The UNT Digital Library

  • Jan. 23, 2018, 5:28 a.m.

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García-López, Erika; Medrano-Tellez, Alexis G.; Ibarra-Medina, Juansethi R.; Siller, Héctor R. & Rodríguez, Ciro A. Experimental Study of Back Wall Dross and Surface Roughness in Fiber Laser Microcutting of 316L Miniature Tubes, article, December 26, 2017; Basel, Switzerland. (digital.library.unt.edu/ark:/67531/metadc1062077/: accessed November 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT College of Engineering.