Multi-Sensor Monitoring of Drilling in Advanced Fiber Reinforced Composites
Abstract
This paper investigates the main effects of drilling parameters (cutting speed, feed rate, tool geometry, and tool material) on cutting force and hole quality during drilling of magnamite graphite fiber reinforced polyether ether ketone (AS4/PEEK) composites. The AS4/PEEK is a one hundred and ninety nine-ply [0°/45°/90°/-45°]s laminate composite. Taguchi orthogonal array L9 technique is used to plan a 34 robust experiment. The workpiece is supported on a fixture and mounted on a 3-component piezoelectric transducer Kistler type 9257A model. The response signals (cutting force and acoustic emission) are acquired simultaneously during the drilling experiments. The signals are instantaneously sampled and stored in a pentium computer for later processing. The digitized signals are processed in time domain. Surface profilometer is used to measure the surface roughness of the drilled holes. The optimum drilling condition is determined by meticulous examination of the drilling parameter' s main effects . The responses are analyzed based on Taguchi' s signal-tonoise ratio (SIN) as opposed to the measurement data and analysis of variance (ANOVA). The results show that sensor signals, delamination and surface roughness measurements are well correlated with the drilling parameters. Optimum drill tool materials, drill point angle and cutting conditions have been determined.
Recommended Citation
A. C. Okafor et al., "Multi-Sensor Monitoring of Drilling in Advanced Fiber Reinforced Composites," Proceedings of SPIE - The International Society for Optical Engineering, vol. 3042, pp. 410 - 420, Society of Photo-optical Instrumentation Engineers, Jun 1997.
The definitive version is available at https://doi.org/10.1117/12.275762
Department(s)
Mechanical and Aerospace Engineering
Keywords and Phrases
Acoustic emission; Advanced composites; And Taguchi technique; Cutting force; Drilling monitoring
International Standard Serial Number (ISSN)
1996-756X; 0277-786X
Document Type
Article - Conference proceedings
Document Version
Final Version
File Type
text
Language(s)
English
Rights
© 2024 Society of Photo-optical Instrumentation Engineers, All rights reserved.
Publication Date
06 Jun 1997
Comments
National Science Foundation, Grant #RB Okafor 6/97