This paper examines thermophysics of the drilling process polymeric composite materials, such as carbon-fibre-reinforced plastics (CFRP) and fibreglass by tubular diamond drill bits. Features COMSOL Multiphysics engineering software package were used. We employed Fourier heat equations, which express intensity gain a mobile source in moving coordinate system. The research was performed using pr...

While preparing the composite preform in the powder metallurgy Lab, the various defects due to porosity, open crack and residual stresses are possible. This may lead to poor life and strength of materials. It is difficult to predict the defects in the form of pores physically in the powder metallurgy Lab. To simplify this kind of problem, the Scanning Electron Microscope (SEM) images are genera...

Bi-continuous alumina/aluminium composites were made by infiltrating an alumina preform which had the structure of a reticulated ceramic foam. The low density preforms were prepared from a polyurethane suspension of alumina powder which was pyrolysed and sintered after foaming. Higher density preforms consisted of ceramic foams with open cells. All these preforms were infiltrated with 6061 alum...

This paper describes a hybrid manufacturing approach for silicon carbide (SiC) freeform surfaces using binder jet additive (BJAM) to print the preform and machining obtain design geometry. Although (AM) techniques such as BJAM allow fabrication of complex geometries, additional or grinding is often required achieve desired surface finish shape. Hybrid has been shown provide an effective solutio...

Lack of cost information is a barrier to acceptance 3D woven preforms as reinforcements for composite materials, compared with 2D preforms. A parametric, resource-based technical model (TCM) was developed based on novel relationship equating manufacturing time and preform complexity. Manufacturing time, therefore cost, found scale complexity seventeen bespoke manufactured Two sub-models were de...