Design analysis of a lomolding machine

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dc.contributor.advisorBasson, A. H.
dc.contributor.authorGoussard, Charl Leonarden_ZA
dc.contributor.otherUniversity of Stellenbosch. Faculty of Engineering. Dept. of Mechanical and Mechatronic Engineering.
dc.date.accessioned2008-03-27T08:01:11Zen_ZA
dc.date.accessioned2010-06-01T08:14:52Z
dc.date.available2008-03-27T08:01:11Zen_ZA
dc.date.available2010-06-01T08:14:52Z
dc.date.issued2007-12
dc.descriptionThesis (PhD (Mechanical and Mechatronic Engineering))--University of Stellenbosch, 2007.
dc.description.abstractThis dissertation describes the design analysis of a lomolder (a machine similar to an injection moulding machine). It focuses on key design aspects that will drive the purchase cost of the machine and that will also influence the maintenance and operating cost. The main objective of the study is to provide an understanding of the key factors that influence the cost of a lomolder as well as the factors that contributes to a quality manufactured part. A semi-analytical flow model was developed to predict cavity pressure drops for a range of part sizes. This model was necessary to eliminate time consuming numeric simulations required for machine optimisation. Numerous machine concept designs were developed and a final layout design chosen. A parametric CAD model was built for the lomolder. Layout designs for different sized lomolders can be generated with this model. The dissertation concludes with a cost study that focuses on the purchase cost of a lomolder unit. Key elements such as choice of actuator and piston to part area ratio are described.en_ZA
dc.format.extent1278409 bytesen_ZA
dc.format.mimetypeapplication/pdfen_ZA
dc.identifier.urihttp://hdl.handle.net/10019.1/1199
dc.language.isoenen_ZA
dc.publisherStellenbosch : University of Stellenbosch
dc.rights.holderUniversity of Stellenbosch
dc.subjectPiston mouldingen_ZA
dc.subjectThermoplasticen_ZA
dc.subjectCost modelen_ZA
dc.subjectParametric designen_ZA
dc.subjectInjection molding of plastics
dc.subjectDissertations -- Mechanical engineering
dc.subjectTheses -- Mechanical engineering
dc.titleDesign analysis of a lomolding machineen_ZA
dc.typeThesisen_ZA
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Doctoral Degrees (Mechanical and Mechatronic Engineering)