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Materials 2015, 8(7), 4118-4130; doi:10.3390/ma8074118

Comparison and Analysis on Mechanical Property and Machinability about Polyetheretherketone and Carbon-Fibers Reinforced Polyetheretherketone

School of Mechanical Science and Engineering, Jilin University, Changchun 130025, China
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Author to whom correspondence should be addressed.
Academic Editor: Daolun Chen
Received: 30 April 2015 / Accepted: 2 June 2015 / Published: 7 July 2015
(This article belongs to the Section Manufacturing Processes and Systems)
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Abstract

The aim of this paper is to compare the mechanical property and machinability of Polyetheretherketone (PEEK) and 30 wt% carbon-fibers reinforced Polyetheretherketone (PEEK CF 30). The method of nano-indentation is used to investigate the microscopic mechanical property. The evolution of load with displacement, Young’s modulus curves and hardness curves are analyzed. The results illustrate that the load-displacement curves of PEEK present better uniformity, and the variation of Young’s modulus and hardness of PEEK both change smaller at the experimental depth. The machinability between PEEK and PEEK CF 30 are also compared by the method of single-point diamond turning (SPDT), and the peak-to-valley value (PV) and surface roughness (Ra) are obtained to evaluate machinability of the materials after machining. The machining results show that PEEK has smaller PV and Ra, which means PEEK has superior machinability. View Full-Text
Keywords: polyetheretherketone; 30% carbon-fiber reinforced polyetheretherketone; nano-indentation; single-point diamond turning polyetheretherketone; 30% carbon-fiber reinforced polyetheretherketone; nano-indentation; single-point diamond turning
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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MDPI and ACS Style

Ji, S.; Sun, C.; Zhao, J.; Liang, F. Comparison and Analysis on Mechanical Property and Machinability about Polyetheretherketone and Carbon-Fibers Reinforced Polyetheretherketone. Materials 2015, 8, 4118-4130.

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