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Article
Open source laser polymer welding system: design and characterization of linear low-density polyethylene multilayer welds
Machines
  • John Laureto, Michigan Technological University
  • Serguei V. Dessiatoun, University of Maryland at College Park
  • Michael M. Ohadi, University of Maryland at College Park
  • Joshua M. Pearce, Michigan Technological University
Document Type
Article
Publication Date
7-1-2016
Abstract
The use of lasers to weld polymer sheets provides a means of highly-adaptive and custom additive manufacturing for a wide array of industrial, medical, and end user/consumer applications. This paper provides an open source design for a laser polymer welding system, which can be fabricated with low-cost fused filament fabrication and off-the-shelf mechanical and electrical parts. The system is controlled with free and open source software and firmware. The operation of the machine is validated and the performance of the system is quantified for the mechanical properties (peak load) and weld width of linear low density polyethylene (LLDPE) lap welds manufactured with the system as a function of linear energy density. The results provide incident laser power and machine parameters that enable both dual (two layers) and multilayer (three layers while welding only two sheets) polymer welded systems. The application of these parameter sets provides users of the open source laser polymer welder with the fundamental requirements to produce mechanically stable LLDPE multi-layer welded products, such as heat exchangers.
Publisher's Statement

© 2016 by the authors. Publisher's version of record:https://dx.doi.org/10.3390/machines4030014

Creative Commons License
Creative Commons Attribution 4.0
Citation Information
John Laureto, Serguei V. Dessiatoun, Michael M. Ohadi and Joshua M. Pearce. "Open source laser polymer welding system: design and characterization of linear low-density polyethylene multilayer welds" Machines Vol. 4 Iss. 3 (2016)
Available at: http://works.bepress.com/jmpearce/125/