Experimental study and empirical analyses of abrasive waterjet machining for hybrid carbon/glass fiber-reinforced composites for improved surface quality

  • Irina Wong Ming Ming
  • Azwan Iskandar Azmi
  • Lee Chang Chuan
  • Ahmad Fairuz Mansor


Poor surface quality is one of the critical defects after trimming of fiber-reinforced plastic (FRP) composites through both conventional and non-conventional machining processes. With the recent introduction of hybrid composites from different fiber reinforcements, this makes the trimming or cutting of them challenging. Therefore, an experimental study was attempted to elucidate the effect and relationship between the machining parameters in the abrasive waterjet cutting, namely abrasive flow rate, hydraulic pressure, and stand-off distance, and traverse rate on the surface roughness of the machined composites. An optimum setting of machining parameters and mathematical modeling equation were obtained by applying the response surface methodology for improving the surface quality. It is apparent that the abrasive flow rate and stand-off distance contributed the most in affecting the surface roughness of the hybrid FRP composites. The mathematical relationship, which is in the form of quadratic function, has been validated with confirmation test in order to optimize the surface roughness.


Abrasive water jet Machining Surface roughness Design of Experiment (DOE) Hybrid composites 


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Funding information

The authors gratefully acknowledged the financial support of the Ministry of Science, Technology and Innovation (MOSTI), under the ScienceFund grant code UniMAP/RMIC/SF/06-01-15-SF0227/9005-00062. Technical supports from KTechno Sdn. Bhd. and Aerospace Composite Manufacturing Sdn. Bhd. are highly appreciated.


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Copyright information

© Springer-Verlag London Ltd., part of Springer Nature 2017

Authors and Affiliations

  1. 1.School of Manufacturing EngineeringUniversiti Malaysia Perlis, Pauh Putra CampusArau, PerlisMalaysia
  2. 2.Faculty of Engineering TechnologyUniversiti Malaysia Perlis, UniCITI CampusPerlisMalaysia

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