Browsing by Author "Stephenson, David J."

Browsing by Author "Stephenson, David J."

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  • Morris, Tom (Cranfield University, 2011-07)
    Grinding and polishing of engineered components are critical aspects of the precision manufacturing of high performance, quality assured products. Elevated process temperatures, however, are a common and for the most ...
  • Vitanov, V. I.; Javaid, N.; Stephenson, David J. (Elsevier Science B.V., Amsterdam., 2010-08-15)
    The aim of this work is to identify relationships between the input variables and the process response and to develop predictive models that can be used in the design of new friction surfacing applications. Moreover to ...
  • Bell, Andrew; Jin, T.; Stephenson, David J. (Elsevier, 2006)
    Burn threshold diagrams are useful for the prediction of thermally induced grinding damage and were originally developed to describe the conventional shallow cut grinding regime. With the development of new high stock ...
  • Bell, Andrew John; Jin, T.; Stephenson, David J. (2011-06-01)
    Burn threshold diagrams are useful for the prediction of thermally induced grinding damage and were originally developed to describe the conventional shallow cut grinding regime. With the development of new high stock ...
  • Durazo-Cardenas, Isidro Sergio; Stephenson, David J.; Corbett, John (Blackwell Publishing Ltd., 2010-11-04)
    A series of fine-grade alumina powders has been used in combination with maize starch granules to produce porous structures for porous hydrostatic journal- bearing applications. A comprehensive series of tests was conducted ...
  • Johnstone, lain (Cranfield University, 2002)
    The recent years, the aerospace industry in particular has embraced and actively pursued the development of stronger high performance materials, namely nickel based superalloys and hardwearing steels. This has resulted ...
  • Ramsden, Jeremy J.; Allen, David M.; Stephenson, David J.; Alcock, Jeffrey R.; Peggs, G. N.; Fuller, G. D.; Goch, G. (Technische Rundschau, Hallwag Publishers; 1999, 2007-08-01)
    Surfaces are the primary place of contact between a biomaterial and its host organism. Typically, prostheses have to fulfil demanding structural and mechanical requirements, yet the material best for those functions may ...
  • Opoku, Kevin S (Cranfield University, 2005)
    A study of the quick non-destructive technique of Magnetic Barkhausen Noise (MBN) in detecting the onset of grinding burn in the absence of any microstructural changes during grinding has been undertaken. 51CrV4 Steel ...
  • Roach, Christopher James (Cranfield University, 2001-02)
    Porous air bearings enjoy some important advantages over conventional air bearing types such as increased load carrying capacity, higher stiffness and improved damping. However, these types of bearings have yet to ...
  • Durazo-Cardenas, Isidro Sergio (Cranfield University, 2003-10)
    Porous-ceramic hydrostatic bearings have been recently developed. These bearings have demonstrated an exceptional overall performance when compared with conventional technology bearings. However, despite all the benefits, ...
  • Raffles, Mark H.; Stephenson, David J.; Shore, Paul; Jin, T. (Professional Engineering Publishing, 2011-01-01)
    The use of electrolytic in-process dressing (ELID) superfinishing has been investigated with the aim of substantially improving surface finish on spherical bearing balls as well as reducing process times. Using ELID in ...
  • Raffles, Mark H. (Cranfield University, 2007)
    Driven by a requirement to extend the lifespan of self-aligning lined spherical bearings, this research investigates the use of Elid (electrolytic in-process dressing) as a method of improving ball surface finish. Elid ...
  • Hamzah, Razali Bin (Cranfield University, 1994-09)
    Experimental erosion/corrosion modelling was performed on C-Mn steels and corrosion resistant alloys commonly used in petroleum production. A graded commercial sand of 50-30b pm size range, similar to sands produced ...
  • Comley, Paul (Cranfield University, 2005-03)
    The introduction of high performance grinding machines in combination with the latest superabrasive technology has the potential to impact significantly on existing process chains. The aim of the research was to look at ...
  • Zdebski, Daniel (Cranfield University, 2012-06)
    Micro-milling represents a versatile and fast manufacturing process suitable for production of fully 3D micro-components. Such components are demanded for a vast number of industrial applications including safety systems, ...
  • Wang, S. H. (Cranfield University, 2000-07)
    Titanium alloys are used extensively in the aerospace industry due to their high specific strength and excellent corrosion resistance. However, their poor thermal conductivity and high chemical reactivity with tool ...
  • Shore, Paul (Cranfield University, 1995-03)
    Investigations of machining optical surfaces into brittle materials using an ultra precision machine tool are presented. The newly developed ultra precision NION machine is evaluated to gain a good appreciation of its ...
  • Knuefermann, Markus M. W. (Cranfield UniversitySchool of Industrial and Manufacturing Science, 2003-11)
    The main aim of this work was the machining by hard turning of surfaces with optical surface quality. A numerical target had been set as a surface roughness Ra = 10nm. It has been shown that achieving roughness of that ...
  • Impey, S. A. (Cranfield University, 1989-12)
    Metal loss is an unavoidable consequence of the large scale melting of aluminium and its alloys. The objective of such processing must be to minimise losses, both from an economic viewpoint and to ensure optimum quality ...
  • Javaid, N.; Stephenson, David J.; Vitanov, V. I. (2010-09-16)
    The aim of this work was to achieve the surface finish of 10nm on a 40mm diameter disc of chrome-molybdenum-vanadium alloyed steel (H13) by using precision grinding process with electrolytic in-process dressing. The ...