Many items of medical, aeronautical, electronic and military equipment exposed to corrosive conditions, or required to have extreme performance characteristics, are sealed hermetically into micro packages. Laser beam welded (LBW) Ti6AI4V alloy has been adopted in anti-corrosion …
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Aluminium Lost Foam castings were made using gravity and counter-gravity filling techniques. Tensile strength was found to be most uniform in those castings which had been filled slowly from the bottom and where the metal front had remained stable throughout filling sequence. Po…
Hospital-acquired infections, a large proportion of which are derived from contact transmission, represent a massive global challenge. It has been proved that surface modification of biomaterials with Ag or Cu has evolved as a potentially effective method for preventing bacteria…
The research questions posed for this work were as follows: Can speech recognition and techniques for topic spotting be used to identify spoken intent in unconstrained natural speech? Can gesture recognition systems based on statistical speech recognition techniques be used to b…
The present investigation has been focused on the design, deposition and characterisation of novel low-friction, wear-resistant multilayer nanocomposite CrAlTiCN coatings. Systematic materials characterisation and property evaluation were conducted on the as-deposited and oxidat…
This thesis explores the ways in which the industrialist Matthew Boulton (1728-1809) used images of his manufactory and of himself to help develop what would now be considered a ‘brand’. The argument draws heavily on archival research into the commissioning process, authorship a…
This document is an Executive Summary of individual submissions of work that the author has submitted towards the degree of Engineering Doctorate. The work comprises three main themes, which can be demonstrated in a broader sense as contributing towards improved productivity in …
Manufacturing systems face now more than ever the effects of an uncertain environment, which is triggered by constantly changing customer needs. Numerous approaches have been proposed to provide manufacturing systems with the capability to satisfactorily perform under situations…
The objective of the work was to develop systems of solid free form (SFF) manufacture capable of being used for mass production as well as for rapid prototyping (RP). Existing commercial RP systems are far too slow for mass production and are limited in the range of materials th…
The facility layout problem (FL) is a non-linear, NP-complete problem whose complexity is derived from the vast solution space generated by multiple variables and interdependent factors. For reconfigurable, agile facilities the problem is compounded by parallelism (simultaneity …
The literature suggests that organisations which have adopted Six Sigma have realised that upon achieving a Five Sigma level the only way to surpass this is to redesign the process(es) by means of Design for Six Sigma (DFSS). For others, the selection of Six Sigma over the DFSS …
In this thesis, the phenomenon of a microdrop impacting onto and spreading over surfaces of constant and variable wettability is investigated. The study is motivated by wide-ranging industrial applications of ink-jet printing technologies, in particular used by our industrial sp…
This research presents a new sensor structure, the coupled micro resonator array (CMRA) as an approach to reduce the complexity of large artificial nose sensing system. The aim is to exploit multiple resonant sensors with a simplified readout. The CMRA working principle is based…
Themosetting resins are being used increasingly as matrix materials in advanced fibre-reinforced composites. It is well known that the processing conditions used to manufacture the composite can have a major influence on its mechanical integrity in service. In addition, the proc…
This thesis is concerned with the realisation of manufacturing strategies. It describes the development and testing of a structured methodology which can be used to determine some of the reasons why a firm may be unable to implement its manufacturing strategy. The methodology is…
In surface mount technology (SMT) electronics assembly, the solder paste is printed onto the PCB's surface through a stencil and the components are later placed over the solder paste deposits. Since 2007, the use of extremely small SMT components for assembly of SMT devices has …
This thesis reports research into the specification and implementation of an Information Technology (IT) Route Map. The purpose of the Route Map is to enable rapid design and deployment of IT solutions capable of semi-automating business processes in a manufacturing enterprise. …
The aim of the research is to develop a methodological analysis of problems in the area of design for manufacture in low volume high complex products found in the writer’s workplace. The majority of research in this area has been around high volume products, such as automotive p…
Agglomerated and sintered 25Ni(Cr)-75Cr3C2 powder was deposited onto 304 stainless steel substrates by HVOF thermal spraying. Post spraying thermal treatments were carried out on as-sprayed samples at different temperatures (700°C and 800°C) in air (oxidising). Samples were heat…