Browsing by Author "Ras, C. I."

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    Evaluation of resource efficient process chains for secondary manufacturing processes of bamboo bicycles
    (Elsevier, 2017) De Weta, P.; Oosthuizen, G. A.; Oberholzer, J. F.; Burgera, M. D.; Ras, C. I.
    ENGLISH ABSTRACT: In order for manufacturing suppliers to stay competitive in the global market, innovative and resource efficient process chains need to be a part of the manufacturing strategy. Secondary manufacturing process steps entail the assembly and surface treatment manufacturing steps after the primary cutting and shaping of the components. Bicycles have an enormous effect on society, both in terms of socio-economics and of advancing modern industrial processes. In order to manufacture bamboo bicycle frames in South Africa innovative designs and process chains need to be developed. In this study process chains for secondary manufacturing processes of bamboo bicycles were developed and compared. The manual secondary process steps for manufacturing bamboo bicycles in Africa were mapped and compared with developed technological process chains in terms of resource efficiency. The effect on time and cost were evaluated.
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    Strategies to standardise bamboo for manufacturing process chains
    (Elsevier, 2017) Burger, M. D.; Oosthuizen, G. A.; Oberholzer, J. F.; De Wet, P.; Ras, C. I.
    The manufacturing challenges industry face need to be addressed in the multifaceted context of sustainability. In order to stay relevant and competitive the manufacturing industry is investigating several types of sustainable hybrid materials for structural components. Bamboo is a versatile plant with thousands of applications, but is produced in various shapes and sizes with different mechanical characteristics. Therefore, the objective of this study is to investigate strategies to standardise bamboo for manufacturing process chains. The treatments that bamboo must undergo in order to be used in high quality and resilient products were investigated. Sustainable and environmental friendly approaches to deal with pests and different drying methods of bamboo are discussed. Factors to be standardized are identified and strategies to standardize this in each phase before the manufacturing process chains are elaborated on. Benchmarking is done on the diameter and wall-thickness of the different tubes and an allowable variance is identified for each tube.