Paul Butler-Smith

TL;DR: In this paper, the influence of the shapes of micro-cutting edges (i.e. circular/square/triangular base frustums generated by laser ablation), emulating grits of these engineered abrasive tools, on the material removal mechanism for workpiece materials of different mechanical properties (ductile- copper, brittle- sapphire).

TL;DR: In this article, a preliminary study of the capability of AWJ cutting of polycrystalline diamond (PCD) using abrasive media with different hardness, i.e., aluminium oxide (Al2O3), silicon carbide (SiC), and diamond, is presented.

TL;DR: In this article, a novel energy beam ablation method has been successfully developed enabling the generation of arrays of abrasive-like micro-features of identical size, shape, crystallographic orientation and spacing into solid diamond structures.

TL;DR: In this article, the performance of purpose designed precision diamond micro-arrays for the grinding a case-study material, Ti-6Al-4V and compares their performance with conventional diamond electroplated micro-cutting elements of D91 and D46 abrasive size in an imitated grinding setup.

TL;DR: In this paper, the Nd:YAG Q-switched pulsed laser was used to accurately produce innovative patterns of micro-crystallite abrasive features in thick-film chemical vapour deposition (CVD) diamond where the size, spacing and orientation of the crystallites can be accurately controlled using carefully selected laser path and operating parameters.