PROCESS PARAMETER OPTIMIZATION IN THE MACHINING OF FIBER-REINFORCED POLYMERS: A REVIEW OF METHODOLOGIES FROM TAGUCHI TO NEURAL NETWORKS
DOI:
https://doi.org/10.20998/2078-7405.2026.104.12Keywords:
composite machining, process parameter optimization, artificial intelligenceAbstract
The widespread adoption of Fiber Reinforced Polymers (FRPs), such as CFRP and GFRP, in weight-critical industries has necessitated highly precise secondary machining operations. However, the heterogeneous and anisotropic nature of these composites makes them susceptible to severe machining-induced defects, including delamination, matrix smearing, and rapid tool wear. To mitigate these issues, selecting and controlling optimal machining parameters (cutting speed, feed rate, and depth of cut) is critical. This paper comprehensively reviews the evolution of process optimization strategies in composite machining. It begins by examining established traditional statistical methods, including the Taguchi Method, Analysis of Variance (ANOVA), and Response Surface Methodology (RSM), which offer robust, data-efficient frameworks for linear process control. Subsequently, the paper explores the paradigm shift toward Artificial Intelligence (AI) and machine learning techniques, specifically Artificial Neural Networks (ANN), Genetic Algorithms (GA), and Fuzzy Logic systems. These data-driven approaches successfully overcome the limitations of traditional models by capturing complex, non-linear thermo-mechanical dynamics and resolving multi-objective conflicts. Ultimately, this review highlights that the future of zero-defect composite manufacturing lies in integrating these methodologies into intelligent hybrid models that bridge the gap between experimental efficiency and advanced predictive accuracy.
References
Srinivasan, S., et al. A review of optimization techniques in machining of composite materials. Materials Today: Proceedings, 47, 6811–6814. (2021). https://doi.org/10.1016/j.matpr.2021.05.136
Palanikumar, K. Cutting parameters optimization for surface roughness in machining of GFRP composites using Taguchi’s method. Journal of Reinforced Plastics and Composites, 25(16), 1739–1751. (2006). https://doi.org/10.1177/0731684406068445
Erkan, Ö., et al. Selection of optimal machining conditions for the composite materials by using Taguchi and GONNs. Measurement, 48, 306–313. (2014). https://doi.org/10.1016/j.measurement.2013.11.011
Davim, J. P., et al. A study on milling of glass fiber reinforced plastics manufactured by hand-lay up using statistical analysis (ANOVA). Composite Structures, 64(3–4), 493–500. (2004). https://doi.org/10.1016/j.compstruct.2003.09.054
Rao, U. S. Controlling process factors to optimize surface quality in drilling of GFRP composites by integrating DoE, ANOVA and RSM techniques. Indian Journal of Science and Technology, 8(1), 1–9. (2015). https://doi.org/10.17485/ijst/2015/v8i29/70728
Khairusshima, M. K. N., et al. Optimization of milling carbon fibre reinforced plastic using RSM. Procedia Engineering, 184, 518–528. (2017). https://doi.org/10.1016/j.proeng.2017.04.122
Parida, A. K., et al. Surface roughness model and parametric optimization in machining of GFRP composite: Taguchi and response surface methodology approach. Materials Today: Proceedings, 2(4–5), 3065–3074. (2015). https://doi.org/10.1016/j.matpr.2015.07.247
Ge, J., et al. Intelligent machining of CFRP composites via data-driven prediction and optimization: Advances, challenges and future prospects. ResearchGate. (2025). https://doi.org/10.26434/chemrxiv-2025-b1jjg
Leyva-Bravo, J., et al. Electrochemical discharge machining modeling through different soft computing approaches. The International Journal of Advanced Manufacturing Technology, 106(7–8), 3587–3596. (2020). https://doi.org/10.1007/s00170-019-04766-z
Karnik, S. R., et al. Delamination analysis in high speed drilling of carbon fiber reinforced plastics (CFRP) using artificial neural network model. Materials & Design, 29(9), 1768–1776. (2008). https://doi.org/10.1016/j.matdes.2008.03.014
Popan, I. A., et al. Artificial intelligence model used for optimizing abrasive water jet machining parameters to minimize delamination in carbon fiber-reinforced polymer. Applied Sciences, 14(18), 8512. (2024). https://doi.org/10.3390/app14188512
Stone, R., & Krishnamurthy, K. A neural network thrust force controller to minimize delamination during drilling of graphite-epoxy laminates. International Journal of Machine Tools & Manufacture, 36(9), 985–1003. (1996). https://doi.org/10.1016/0890-6955(96)00013-2
Jopek, H., & Strek, T. Optimization of the effective thermal conductivity of a composite. InTech eBooks. (2011). https://doi.org/10.5772/24531
Kumar, K. V., & Sait, A. N. Modelling and optimisation of machining parameters for composite pipes using artificial neural network and genetic algorithm. International Journal on Interactive Design and Manufacturing (IJIDeM), 11(2), 435–443. (2014). https://doi.org/10.1007/s12008-014-0253-0
Cao, H., et al. Process optimization of high-speed dry milling UD-CF/PEEK laminates using GA-BP neural network. Composites Part B: Engineering, 221, 109034. (2021). https://doi.org/10.1016/j.compositesb.2021.109034
Sahib, M. M., & Kovács, G. Multi-objective optimization of composite sandwich structures using artificial neural networks and genetic algorithm. Results in Engineering, 21, 101937. (2024). https://doi.org/10.1016/j.rineng.2024.101937
Babu, U. H., et al. Artificial intelligence system approach for optimization of drilling parameters of glass-carbon fiber/polymer composites. Silicon, 13(9), 2943–2957. (2020). https://doi.org/10.1007/s12633-020-00637-5
Tran, D. S., et al. Regression and ANFIS-based models for predicting surface roughness and thrust force during drilling of biocomposites. Neural Computing and Applications, 33(18), 11721–11738. (2021). https://doi.org/10.1007/s00521-021-05869-z
Downloads
Published
Issue
Section
License
Copyright Notice
Authors who publish with this Collection agree to the following terms:
1. Authors retain copyright and grant the Collection right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this Collection.
2. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the Collection's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this Collection.
3. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work.