Experimental analysis of drilling fiber reinforced composites

By M. Lazar, Paul C. Xirouchakis. 2011

155 citations recorded by the source corpus.

In comparison with metals, long-fiber reinforced composites have a layered structure, with different properties throughout their thickness. When drilling such structures, internal defects like delamination occur, caused by the drilling loads and their uneven distribution among the plies. The current experimental analysis is focused towards determining the cutting loads distribution (axial and tangential) along the work-piece thickness and tool radius by analyzing the thrust and torque curves when drilling with 3 different drills carbon-fiber (CFRP) and glass-fiber (GFRP) reinforced composite plates. A wide range of cutting parameters is tested. The highest loads are found at the tool tip in the vicinity of the chisel edge for all cases. It is also found that the maximum load per ply varies mainly with the axial feed rate and tool geometry, while the spindle speed has little or no influence. The analysis is useful for selecting the cutting parameters for delamination free drilling and also for conducting drill geometry optimizations. (C) 2011 Elsevier Ltd. All rights reserved.

Subfields: Biomedical Engineering, Electrical and Electronic Engineering, Mechanical Engineering

View Paper: https://www.semanticscholar.org/paper/d889dc4f25f571a871c059267f885dd3bc7f8e6e

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Citations in the corpus

Investigation of drilling parameters on hybrid polymer composites using grey relational analysis, regression, fuzzy logic, and ANN models (2018, background): “Many researchers have tried to overcome these difficulties by machining the composites through various methods [5, 6].”
Natural fiber–reinforced composites: A review on material, manufacturing, and machinability (2019, background): “Excessive tool wear, in particular, is one of the major reasons for high cost of drilling long NFRC as the number of holes which can be drilled with one particular tool is limited.(145,146) The major reason for tool wear is the rise in temperature and thermal softening of the tool material, as well ”