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Browsing by Author "De Beer, D.J."

Browsing by Author "De Beer, D.J."

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  • Bridge tooling through layered sintering of powder 
    Booysen, Gerrie Jacobus (Bloemfontein : Central University of Technology, Free State, 2007)
    Faster mould production methods will undeniably impact positively on the product development community. Rapid Tooling (RT) concepts, in context with the product development process and related product development theories, ...
  • A calculation concept to reduce manufacturing cost on laser sintering machines 
    Starz, Anton Johannes (Bloemfontein : Central University of Technology, Free State, 2008)
    A company’s ability to produce products faster and more economically may lead to a competitive edge in the international market. The reduction of development costs and shortened development time will undeniably depend on ...
  • Designing for rapid manufacture 
    Gerber, Guillaume ([Bloemfontein?] : Central University of Technology, Free State, 2008-07)
    As the tendency to use sol id freeform fabrication (SFF) technology for the manufacture of end use parts grew, so too did the need for a set of general guidelines that would aid designers with designs aimed specifically ...
  • Digital sculpture : conceptually motivated sculptural models through the application of three-dimensional computer-aided design and additive fabrication technologies 
    Kühn, Carol ([Bloemfontein] : Central University of Technology, Free State, 2009-08)
  • Digital sculpture : technical and aesthetic considerations applicable to current input and output modes of additive fabricated sculpture 
    Kuhn, C.; De Lange, R; De Beer, D.J. (Journal for New Generation Sciences, Vol 7, Issue 2: Central University of Technology, Free State, Bloemfontein, 2009)
    This article examines the synergy between aesthetic and technical issues surrounding current input and output modes applicable to digital sculpture built by means of additive fabrication technologies. The scope is limited ...
  • Evaluating the Suitability of Alumide Tooling for Injection Moulding of Different Polymers 
    Combrinck, J.; Van der Walt, J.G.; Booysen, G.J.; De Beer, D.J. (South African Journal of Industrial Engineering, 2018-11)
    This paper describes the possibility of using laser-sintered Alumide® as an alternative material for producing rapid tooling (RT) inserts. To determine the durability of Alumide® inserts for the injection moulding (IM) ...
  • Gynaecological product development facilitated through RP and Rapid Tooling 
    Barnard, L.J.; Booysen, G.J.; De Beer, D.J. (Interim : Interdisciplinary Journal, Vol 4, Issue 1: Central University of Technology, Free State, Bloemfontein, 2005)
    Atkinson distinguishes between four types of prototypes, categorised through its end-use: •Design or aesthetic prototypes •Geometrical prototypes •Functional prototypes •Technological prototypes Shigley and Mitchell ...
  • The impact of additive fabrication technologies on Institutional Research Development and the SA product development community-the CRPM story 
    De Beer, D.J. (Interim : Interdisciplinary Journal, Vol 7, Issue 1: Central University of Technology Free State Bloemfontein, 2008)
    The Centre for Rapid Prototyping and Manufacturing (CRPM) made a humble start in 1997 as a spin-off from a proposed research activity in 1995, at a stage when Technikons were still being seen as occupational training ...
  • Limited run production utilising Alumide® tooling for the plastic injection moulding process. 
    Combrinck, J.; Booysen, G.J.; Van der Walt, J.G.; De Beer, D.J. (SAIIE: South African Journal of Industrial Engineering, 2012)
    ENGLISH ABSTRACT: Existing techniques for the production of conventional steel tooling for plastic injection moulding are expensive and time-consuming. As a result, many new products often do not advance beyond the prototype ...
  • Parameters affecting spin casting of decorative and mechanical parts 
    Barnard, L.J.; De Beer, D.J.; Campbell, R.I. (Journal for New Generation Sciences, Vol 7, Issue 2: Central University of Technology, Free State, Bloemfontein, 2009)
    Spin casting is widely used as a batch manufacturing process for decorative products. In the process, moulds are filled by taking advantage of the centrifugal effect, which is used to increase the pressure within the moulds, ...
  • A Quality Assurance Framework For Sulphonic Acid-Coated Sand Used In 3D Printing Applications 
    Van Tonder, P.J.M; De Beer, D.J.; Wichers, J.H. (South African Journal of Industrial Engineering November 2020 Vol 31(3) Special Edition, pp 218-229, 2020-11-11)
    The need for companies to adopt a quality management strategy has significantly increased in recent times as a result of global competition and more demanding customers. It is important to integrate quality throughout the ...
  • Radiation field shaping through low temperature thermal-spray in radiotheraphy 
    Van der Walt, Jacobus Gert (Bloemfontein : Central University of Technology, Free State, 2009)
    Superficial cancerous lesions are commonly treated through low energy X-ray or electron radiation in radiotherapy. The treatment units that produce the radiation are equipped with square, rectangular and round applicators ...
  • Rapid prototyping and manufacturing in medical product development 
    Truscott, M.; Booysen, G.J.; De Beer, D.J. (Interim : Interdisciplinary Journal, Vol 8, Issue 2: Central University of Technology Free State Bloemfontein, 2009)
    RP and recently RM have been key factors in the development of the manufacturing industry in assisting in the development of new products. Fortunately, the application of these technologies has been realised in the medical ...
  • Reverse Engineering of Femur Bone 
    Truscott, M.; De Beer, D.J.; Booysen, G.J.; Barnard, L.J. (Central University of Technology, Free State:Interim : Interdisciplinary Journal, 2005)
    The possible use of Rapid Prototypingi related technologies to support medical product development for cancer patients was investigated. The hypothesis is to use CAD / CAM / RP related technologies to substitute infected ...
  • Synthesis of mechanical error in rapid prototyping processes using stochastic 1 approach 
    Agrawal, S.; Dhande, S.G.; Deb, K; De Beer, D.J.; Truscott, M. (Journal for New Generation Sciences, Vol 3, Issue 1: Central University of Technology, Free State, Bloemfontein, 2005)
    A synthesis procedure for allocating tolerances and clearances in rapid prototyping (RP) processes has been developed, using a unified method based on stochastic approach, as developed by the authors, to study the mechanical ...
  • Tool manufacturing by metal casting in sand moulds produced by additive manufacturing processes 
    Nyembwe, Kasongo Didier (Bloemfontein : Central University of Technology, Free State, 2012)
    In this study an alternative indirect Rapid Tooling process is proposed. It essentially consists of producing sand moulds by Additive Manufacturing (AM) processes followed by casting of tools in the moulds. Various features ...

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