An approach for development of damage-free drilling of carbon fiber reinforced thermosets

E. Ugo Enemuoh, A. Sherif El-Gizawy, A. Chukwujekwu Okafor

Research output: Contribution to journalArticlepeer-review

154 Scopus citations


A new comprehensive approach to select cutting parameters for damage-free drilling in carbon fiber reinforced epoxy composite material is presented. The approach is based on a combination of Taguchi's experimental analysis technique and a multi-objective optimization criterion. The optimization objective includes the contributing effects of the drilling performance measures: delamination, damage width, surface roughness, and drilling thrust force. A hybrid process model based on a database of experimental results together with numerical methods for data interpolation are used to relate drilling parameters to the drilling performance measures. Case studies are presented to demonstrate the application of this method in the determination of optimum drilling conditions for damage-free drilling in BMS 8-256 composite laminate. A process map based on the results is presented as a tool for drilling process design and optimization for the investigated tool/material combination.

Original languageEnglish (US)
Pages (from-to)1795-1814
Number of pages20
JournalInternational Journal of Machine Tools and Manufacture
Issue number12
StatePublished - Sep 2001

Bibliographical note

Funding Information:
This work was supported by the University of Missouri Research Board, and National Science Foundation, Graduate Research Traineeship in Machine Tool Research, N.S.F grant #GER-9355127. Boeing Aerospace Seattle through Dr. Hamid Razi, Structural Methods and Allowable supplied the BMS-256 composite plates used in this research. These contributions are greatly appreciated.


  • Drilling
  • Epoxy composites
  • Hybrid process model
  • Optimization
  • Process map


Dive into the research topics of 'An approach for development of damage-free drilling of carbon fiber reinforced thermosets'. Together they form a unique fingerprint.

Cite this