Recent advances in twist drill design for composite machining: A critical review

Ismail, S, Dhakal, H, Dimla, E and Popov, I 2017, 'Recent advances in twist drill design for composite machining: A critical review', Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture, vol. 231, no. 14, pp. 2527-2542.


Document type: Journal Article
Collection: Journal Articles

Title Recent advances in twist drill design for composite machining: A critical review
Author(s) Ismail, S
Dhakal, H
Dimla, E
Popov, I
Year 2017
Journal name Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture
Volume number 231
Issue number 14
Start page 2527
End page 2542
Total pages 16
Publisher Sage
Abstract In the field of composite technology, inefficient and poor designs of twist drills contribute immensely to the challenges facing drilling of composite materials. An attempt to report some of the drill design methods and their inherent challenges confronting composite machining necessitates the writing of this article. A critical review has been conducted to offer a clear understanding of the current advances in the field of mechanical drilling of composite materials, focusing on geometry, material and parametric tool designs. The inter-dependable effects of thrust force, cutting speed, feed rate, cutting force and torque on drill design are similarly reviewed. This article also reveals other associated issues facing composite drilling including delamination, surface roughness, rapid tool wear and drill breakage. Well-designed drill geometry and good knowledge of drilling parameters afford the producers of polycrystalline diamond, carbide and high-speed steel tooling materials better opportunity of developing a drill that will minimise delamination of the reinforced composites and tool wear and produce a high-quality surface. Twist drill manufacturers and users will benefit from this article as they seek to have well-designed and improved drills.
Subject Manufacturing Processes and Technologies (excl. Textiles)
Keyword(s) composite materials
delamination
design
drilling
tool wear
twist drill
DOI - identifier 10.1177/0954405416635034
Copyright notice © IMechE 2016
ISSN 0954-4054
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