Browsing by Author "Yapp, David"

Browsing by Author "Yapp, David"

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  • Real time evaluation of weld quality in narrow groove pipe welding 
    Marmelo, Patricia C. (Cranfield University, 2012-10)
    With the growth in pipeline installations all over the world, there is a great demand for highly productive and robust welding systems. Mechanised pipe welding has been developed over the last 50 years and the present ...
  • Tandem gas metal arc pipeline welding 
    Liratzis, Theocharis (Cranfield University, 2007-04)
    Energy consumption has grown by 2% per year worldwide over the past ten years. In 2005 worldwide 900,000 barrels of oil and 7.6 billion cubic metre of natural gas were produced daily. The exploitation of fields to meet ...
  • Variable Polarity (AC) Arc Weld Brazing of Galvanized Sheet. 
    Joseph, Andy; Webb, Chris; Haramia, Mike; Yapp, David (2003-07-01)
    Requirements for improved durability in domestic consumer goods have invariably led to the application of more corrosion resistant materials. The basic material used by many industries, including automotive, ventilation ...
  • Variable polarity plasma arc welding of high strength aluminium alloys 
    Serrano, G. L. (Cranfield University, 2004-12)
    The VPP A W process has been evaluated and optimised for the joining of high strength aluminium alloys AA-2024 T351, AA-7150 W51 and AA-7150 T651. The initial experimentation was performed with conventional AC-GTAW ...
  • Welding with high power fiber lasers - A preliminary study. 
    Quintino, Luísa; Costa, A.; Miranda, R.; Yapp, David; Kumar, V.; Kong, C. J. (Elsevier Science B.V., Amsterdam., 2007-01-01)
    The new generation of high power fiber lasers presents several benefits for industrial purposes, namely high power with low beam divergence, flexible beam delivery, low maintenance costs, high efficiency and compact size. ...