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All Outputs (105)

Investigation of the microstructure change due to phase transition in nanosecond pulsed laser processing of diamond (2017)
Journal Article
Cadot, G. B., Thomas, K., Best, J. P., Taylor, A., Michler, J., Axinte, D., & Billingham, J. (2018). Investigation of the microstructure change due to phase transition in nanosecond pulsed laser processing of diamond. Carbon, 127, 349-365. https://doi.org/10.1016/j.carbon.2017.10.030

Experiments and theory are employed to investigate the thermal damage induced by infra-red nanosecond pulses in atmospheric air into a boron-doped diamond target. Micro-Raman spectroscopy, Transmission Electron Microscopy (TEM) analysis and surface t... Read More about Investigation of the microstructure change due to phase transition in nanosecond pulsed laser processing of diamond.

New models for energy beam machining enable accurate generation of freeforms (2017)
Journal Article
Axinte, D. A., Billingham, J., & Guillerna, A. B. (in press). New models for energy beam machining enable accurate generation of freeforms. Science Advances, 3(9), Article e1701201. https://doi.org/10.1126/sciadv.1701201

We demonstrate that, despite differences in their nature, many energy beam controlled-depth machining processes (e.g. waterjet, pulsed laser, focused ion beam) can be modelled using the same mathematical framework – a partial differential evolution e... Read More about New models for energy beam machining enable accurate generation of freeforms.

Waterjet and laser etching: the nonlinear inverse problem (2017)
Journal Article
Bilbao Guillerna, A., Axinte, D. A., Billingham, J., & Cadot, G. (2017). Waterjet and laser etching: the nonlinear inverse problem. Royal Society Open Science, 4(161031), https://doi.org/10.1098/rsos.161031

In waterjet and laser milling, material is removed from a solid surface in a succession of layers to create a new shape, in a depth-controlled manner. The inverse problem consists of defining the control parameters, in particular, the two-dimensional... Read More about Waterjet and laser etching: the nonlinear inverse problem.

A study of surface swelling caused by graphitisation during pulsed laser ablation of carbon allotrope with high content of sp ³ bounds (2017)
Journal Article
Cadot, G., Billingham, J., & Axinte, D. A. (in press). A study of surface swelling caused by graphitisation during pulsed laser ablation of carbon allotrope with high content of sp ³ bounds. Journal of Physics D: Applied Physics, 50(24), https://doi.org/10.1088/1361-6463/aa70fe

Experiments and theory are employed to investigate the laser ablation of boron doped diamond and tetrahedral amorphous carbon using nanosecond pulses. For a single pulse at low values of fluence, the laser induces a swelling of the surface due to gra... Read More about A study of surface swelling caused by graphitisation during pulsed laser ablation of carbon allotrope with high content of sp ³ bounds.

An approach on capturing the influence of the stochasticity of fibre distributions for modelling the variability of cutting forces in composite materials (2017)
Journal Article
Mei, J., Gavalda Diaz, O., & Axinte, D. A. (2017). An approach on capturing the influence of the stochasticity of fibre distributions for modelling the variability of cutting forces in composite materials. Composites Part B: Engineering, 125, 27-38. doi:10.1016/j.compositesb.2017.05.056

The paper presents a novel model to evaluate the variation of orthogonal cutting forces for randomly distributed unidirectional fibres when cutting composite structures. The distribution analysis of fibre locations is first introduced into this topic... Read More about An approach on capturing the influence of the stochasticity of fibre distributions for modelling the variability of cutting forces in composite materials.

Erosion mechanisms during abrasive waterjet machining: model microstructures and single particle experiments (2017)
Journal Article
Mieszala, M., Lozano Torrubia, P., Axinte, D. A., Schwiedrzik, J., Mischler, S., & Michler, J. (2017). Erosion mechanisms during abrasive waterjet machining: model microstructures and single particle experiments. Journal of Materials Processing Technology, 247, https://doi.org/10.1016/j.jmatprotec.2017.04.003

The erosion mechanisms during abrasive waterjet (AWJ) machining have been examined for a variety of materials. However, no systematic study has considered the effect of the microstructure–property relationship on the erosion mechanisms in metals. In... Read More about Erosion mechanisms during abrasive waterjet machining: model microstructures and single particle experiments.

Towards understanding the cutting and fracture mechanism in ceramic matrix composites (2017)
Journal Article
Gavaldà Díaz, O., & Axinte, D. A. (2017). Towards understanding the cutting and fracture mechanism in ceramic matrix composites. International Journal of Machine Tools and Manufacture, 118-119, 12-25. https://doi.org/10.1016/j.ijmachtools.2017.03.008

Ceramic Matrix Composites (CMCs) are increasingly used for the manufacture of high-value parts for several industries such as the aerospace, nuclear and automotive. Nevertheless, their heterogenic, anisotropic and brittle nature make difficult to cha... Read More about Towards understanding the cutting and fracture mechanism in ceramic matrix composites.

Combustion flame spray of CoNiCrAlY & YSZ coatings (2017)
Journal Article
Fanicchia, F., Axinte, D., Kell, J., McIntyre, R., Brewster, G., & Norton, A. (in press). Combustion flame spray of CoNiCrAlY & YSZ coatings. Surface and Coatings Technology, https://doi.org/10.1016/j.surfcoat.2017.01.070

The properties of CoNiCrAlY and ∼7–8%YSZ layers, used as thermal barrier coatings (TBC) to protect hot gas paths of power generation and aerospace gas turbines, that have been deposited through the Combustion Flame Spray (CFS) process, are assessed a... Read More about Combustion flame spray of CoNiCrAlY & YSZ coatings.

A novel cutting tool design to avoid surface damage in bone machining (2017)
Journal Article
Liao, Z., Axinte, D. A., & Gao, D. (2017). A novel cutting tool design to avoid surface damage in bone machining. International Journal of Machine Tools and Manufacture, 116, 52-59. https://doi.org/10.1016/j.ijmachtools.2017.01.003

With its anisotropic structure, bone machining occurs as shear/serrated cutting mechanisms at low values of uncut chip thickness while at high values it results in fracture cutting mechanisms which lead to significant tissues damages; hence, utilisin... Read More about A novel cutting tool design to avoid surface damage in bone machining.

On a stochastically grain-discretised model for 2D/3D temperature mapping prediction in grinding (2017)
Journal Article
Li, H. N., & Axinte, D. A. (2017). On a stochastically grain-discretised model for 2D/3D temperature mapping prediction in grinding. International Journal of Machine Tools and Manufacture, 116, https://doi.org/10.1016/j.ijmachtools.2017.01.004

Excessive grinding heat might probably lead to unwanted heat damages of workpiece materials, most previous studies on grinding heat/temperature, however, assumed the wheel-workpiece contact zone as a moving band heat source, which might be not approp... Read More about On a stochastically grain-discretised model for 2D/3D temperature mapping prediction in grinding.

A concept for actuating and controlling a leg of a novel walking parallel kinematic machine tool (2016)
Journal Article
Rushworth, A., Axinte, D., Raffles, M., & Cobos-Guzman, S. (2016). A concept for actuating and controlling a leg of a novel walking parallel kinematic machine tool. Mechatronics, 40, https://doi.org/10.1016/j.mechatronics.2016.10.010

The scope of this paper is to present a novel method of actuating the legs of a walking parallel kinematic machine tool (WalkingHex) such that the upper spherical joint can be actively driven while walking and remain a free, passive joint while perfo... Read More about A concept for actuating and controlling a leg of a novel walking parallel kinematic machine tool.

On-the-fly laser machining: a case study for in situ balancing of rotative parts (2016)
Journal Article
Stoesslein, M., Axinte, D. A., & Gilbert, D. (in press). On-the-fly laser machining: a case study for in situ balancing of rotative parts. Journal of Manufacturing Science and Engineering, 139(3), https://doi.org/10.1115/1.4034476

On-the-fly laser machining is defined as a process that aims to generate pockets/patches on target components that are rotated or moved at a constant velocity. Since it is a nonintegrated process (i.e., linear/rotary stage system moving the part is i... Read More about On-the-fly laser machining: a case study for in situ balancing of rotative parts.

Development of a slender continuum robotic system for on-wing inspection/repair of gas turbine engines (2016)
Journal Article
Dong, X., Axinte, D. A., Palmer, D., Cobos, S., Raffles, M., Rabani, A., & Kell, J. (in press). Development of a slender continuum robotic system for on-wing inspection/repair of gas turbine engines. Robotics and Computer-Integrated Manufacturing, 44, https://doi.org/10.1016/j.rcim.2016.09.004

The maintenance works (e.g. inspection, repair) of aero-engines while still attached on the airframes requires a desirable approach since this can significantly shorten both the time and cost of such interventions as the aerospace industry commonly o... Read More about Development of a slender continuum robotic system for on-wing inspection/repair of gas turbine engines.

Pulsed laser ablation as a tool for in-situ balancing of rotating parts (2016)
Journal Article
Stoesslein, M., Axinte, D. A., & Bilbao Guillerna, A. (2016). Pulsed laser ablation as a tool for in-situ balancing of rotating parts. Mechatronics, 38, 54-67. https://doi.org/10.1016/j.mechatronics.2016.06.006

The balancing of complex rotating systems is a challenging task as it may require repetitive (dis)assembly to enable mass adjustments; thus, developing methods for in-situ dynamic balancing of rotatives is regarded as a key technology enabler. In thi... Read More about Pulsed laser ablation as a tool for in-situ balancing of rotating parts.

Continuous trench, pulsed laser ablation for micro-machining applications (2016)
Journal Article
Cadot, G., Axinte, D. A., & Billingham, J. (2016). Continuous trench, pulsed laser ablation for micro-machining applications. International Journal of Machine Tools and Manufacture, 107, https://doi.org/10.1016/j.ijmachtools.2016.04.011

The generation of controlled 3D micro-features by pulsed laser ablation in various materials requires an understanding of the material's temporal and energetic response to the laser beam. The key enabler of pulsed laser ablation for micro-machining i... Read More about Continuous trench, pulsed laser ablation for micro-machining applications.

Stochastic simplified modelling of abrasive waterjet footprints (2016)
Journal Article
Torrubia, P. L., Billingham, J., & Axinte, D. A. (2016). Stochastic simplified modelling of abrasive waterjet footprints. Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 472(2186), https://doi.org/10.1098/rspa.2015.0836

Abrasive micro-waterjet processing is a non-conventional machining method that can be used to manufacture complex shapes in difficult-to-cut materials. Predicting the effect of the jet on the surface for a given set of machi... Read More about Stochastic simplified modelling of abrasive waterjet footprints.

A Novel Continuum Robot Using Twin-Pivot Compliant Joints: Design, Modeling, and Validation (2015)
Journal Article
Dong, X., Raffles, M., Cobos-Guzman, S., Axinte, D., & Kell, J. (2016). A Novel Continuum Robot Using Twin-Pivot Compliant Joints: Design, Modeling, and Validation. Journal of Mechanisms and Robotics, 8(2), Article 021010. https://doi.org/10.1115/1.4031340

A twisting problem is identified from the central located flexible backbone continuum robot. Regarding this problem, a design solution is required to mechanically minimize this twisting angle along the backbone. Further, the error caused by the kinem... Read More about A Novel Continuum Robot Using Twin-Pivot Compliant Joints: Design, Modeling, and Validation.

The allotropic transformation of polycrystalline cubic boron nitride structures resulting from the thermal effects of pulsed laser ablation (2015)
Journal Article
Axinte, D. A., Butler-Smith, P. W., Pacella, M., Pacella, M., Fay, M. W., Butler-Smith, P. W., & Axinte, D. A. (2015). The allotropic transformation of polycrystalline cubic boron nitride structures resulting from the thermal effects of pulsed laser ablation. Diamond and Related Materials, 59, 62-68. https://doi.org/10.1016/j.diamond.2015.09.009

© 2015 Published by Elsevier B.V. Cubic boron nitride, being only second to diamond for its hardness and possessing superior thermal stability is suitable for a wide range of applications. In particular, the versatility of this material and its polyc... Read More about The allotropic transformation of polycrystalline cubic boron nitride structures resulting from the thermal effects of pulsed laser ablation.

The linear inverse problem in energy beam processing with an application to abrasive waterjet machining (2015)
Journal Article
Axinte, D., Bilbao Guillerna, A., & Billingham, J. (2015). The linear inverse problem in energy beam processing with an application to abrasive waterjet machining. International Journal of Machine Tools and Manufacture, 99, 34-42. https://doi.org/10.1016/j.ijmachtools.2015.09.006

© 2015 The Authors. Published by Elsevier Ltd. The linear inverse problem for energy beam processing, in which a desired etched profile is known and a trajectory of the beam that will create it must be found, is studied in this paper. As an example,... Read More about The linear inverse problem in energy beam processing with an application to abrasive waterjet machining.