All Outputs (93)

Advances in Additive Manufacturing Processes (2014)
Presentation / Conference Contribution
Oppon, C., Hackney, P., Shyha, I., & Beeby, J. (2014). Advances in Additive Manufacturing Processes. In 3rd Applied Research Conference in Africa

Additive Manufacturing (AM) which is also referred as Three Dimensional Printing (3DP), Solid Freeform Fabrication (SFF) or Rapid Prototyping (RP) is a layer-by-layer technique of producing a three-dimensional (3D) objects directly from a digital mod... Read More about Advances in Additive Manufacturing Processes.

Workpiece surface integrity and productivity when cutting CFRP and GFRP composites using a CO2 laser (2014)
Journal Article
Shyha, I., Kuo, C. L., & Soo, S. L. (2014). Workpiece surface integrity and productivity when cutting CFRP and GFRP composites using a CO2 laser. International Journal of Mechatronics and Manufacturing Systems, 7(2/3), 93-107. https://doi.org/10.1504/IJMMS.2014.064746

Following a brief literature review, results from tests involving laser cutting of carbon and glass fibre reinforced plastic (CFRP and GFRP) composites are presented. The influence of cutting speed, laser beam power and gas pressure on material remov... Read More about Workpiece surface integrity and productivity when cutting CFRP and GFRP composites using a CO2 laser.

An Investigation into CO2 Laser Trimming of CFRP and GFRP Composites (2013)
Presentation / Conference Contribution
Shyha, I. (2013, June). An Investigation into CO2 Laser Trimming of CFRP and GFRP Composites. Presented at The Manufacturing Engineering Society International Conference, MESIC 2013, Zaragoza, Spain

The paper outlines results for an investigation of CO2 laser trimming of fibre reinforced plastic (FRP) composites. Process variables include cutting speed, laser beam power, gas pressure and workpiece material. These have been evaluated against key... Read More about An Investigation into CO2 Laser Trimming of CFRP and GFRP Composites.

Grinding performance and workpiece integrity when superabrasive edge routing carbon fibre reinforced plastic (CFRP) composites (2012)
Journal Article
Soo, S. L., Shyha, I., Barnett, T., Aspinwall, D., & Sim, W. (2012). Grinding performance and workpiece integrity when superabrasive edge routing carbon fibre reinforced plastic (CFRP) composites. CIRP Annals - Manufacturing Technology, 61(1), 295-298. https://doi.org/10.1016/j.cirp.2012.03.042

Data is presented for wheel wear, cutting forces and workpiece integrity when high speed routing 10 mm thick CFRP laminates using single layer electroplated diamond and CBN grinding points as opposed to standard end milling tools. A 60,000 rpm retrof... Read More about Grinding performance and workpiece integrity when superabrasive edge routing carbon fibre reinforced plastic (CFRP) composites.

The effect of peel ply layer on hole integrity when drilling carbon fibre-reinforced plastic (2011)
Journal Article
Shyha, I., Soo, S. L., Aspinwall, D., & Bradley, S. (2011). The effect of peel ply layer on hole integrity when drilling carbon fibre-reinforced plastic. Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture, 225(7), 1217-1223. https://doi.org/10.1177/2041297510393797

Fibre/matrix delamination is a common problem when cutting carbon fibre-reinforced plastic (CFRP) that can have a detrimental effect on workpiece mechanical properties and hence compromise the in-service performance of the composite part. The present... Read More about The effect of peel ply layer on hole integrity when drilling carbon fibre-reinforced plastic.

Hole quality assessment following drilling of metallic-composite stacks (2011)
Journal Article
Shyha, I., Soo, S. L., Aspinwall, D., Bradley, S., Perry, R., Harden, P., & Dawson, S. (2011). Hole quality assessment following drilling of metallic-composite stacks. International Journal of Machine Tools and Manufacture, 51(7-8), 569-578. https://doi.org/10.1016/j.ijmachtools.2011.04.007

The use of material stacks comprising titanium, carbon fibre reinforced plastics (CFRPs) and aluminium is expanding for structural aerospace applications, especially where high mechanical loads exist such as for aircraft wing and tail-plane component... Read More about Hole quality assessment following drilling of metallic-composite stacks.

Drilling of titanium/CFRP/aluminium stacks (2010)
Journal Article
Shyha, I., Soo, S. L., Aspinwall, D., Bradley, S., Dawson, S., & Pretorius, C. (2010). Drilling of titanium/CFRP/aluminium stacks. Key Engineering Materials, 447, 624-633. https://doi.org/10.4028/www.scientific.net/KEM.447-448.624

Following a review on the machinability of CFRP composites and multilayer stacks typically comprising metallic and composite material elements, the paper details experimental results when drilling 30 mm thick titanium/CFRP/aluminium workpiece stacks.... Read More about Drilling of titanium/CFRP/aluminium stacks.

Effect of laminate configuration and feed rate on cutting performance when drilling holes in carbon fibre reinforced plastic composites (2010)
Journal Article
Shyha, I., Soo, S. L., Aspinwall, D., & Bradley, S. (2010). Effect of laminate configuration and feed rate on cutting performance when drilling holes in carbon fibre reinforced plastic composites. Journal of Materials Processing Technology, 210(8), 1023-1034. https://doi.org/10.1016/j.jmatprotec.2010.02.011

Composites use in the aerospace industry is expanding, in particular carbon fibre reinforced plastics (CFRP) for structural components. Machinability can however be problematic especially when drilling, due to CFRP's inherent anisotropy/in-homogeneit... Read More about Effect of laminate configuration and feed rate on cutting performance when drilling holes in carbon fibre reinforced plastic composites.

On-going experimental work when twist drilling of CFRP and titanium/CFRP/aluminium stacks used in the aerospace industry (2010)
Presentation / Conference Contribution
Shyha, I. (2010, January). On-going experimental work when twist drilling of CFRP and titanium/CFRP/aluminium stacks used in the aerospace industry. Paper presented at CIRP January Meeting 2010, Paris, France

Small hole drilling of carbon fibre composites using diamond coated drills (2009)
Presentation / Conference Contribution
Shyha, I. (2009). Small hole drilling of carbon fibre composites using diamond coated drills. In G. E. O'Donnell, & K. Kelly (Eds.), Efficient & Low Carbon Manufacturing: proceedings of the 26th International Manufacturing Conference (IMC26) (87-94)

Drill geometry and operating effects when cutting small diameter holes in CFRP (2009)
Journal Article
Shyha, I., Aspinwall, D., Soo, S., & Bradley, S. (2009). Drill geometry and operating effects when cutting small diameter holes in CFRP. International Journal of Machine Tools and Manufacture, 49(12-13), 1008-1014. https://doi.org/10.1016/j.ijmachtools.2009.05.009

The paper details experimental results when drilling small holes (1.5 mm diameter cemented carbide drills with varying end point and helix geometry) in thin quasi-isotropic, unbacked carbon fibre reinforced plastic (CFRP) laminate (typical cutting ti... Read More about Drill geometry and operating effects when cutting small diameter holes in CFRP.

Experimental study of small hole drilling in diverse CFRP laminate configurations (2009)
Presentation / Conference Contribution
Shyha, I. (2009, February). Experimental study of small hole drilling in diverse CFRP laminate configurations. Paper presented at The 9th International Conference on Production Engineering, Design and Control (PEDAC 2009), Alexandria, Egypt

Burr Formation in Drilling of Miniature Holes in Brass (2004)
Presentation / Conference Contribution
Shyha, I. (2004). Burr Formation in Drilling of Miniature Holes in Brass. In The 8th International Conference on Production Engineering, Design, and Control (PEDAC 2004)