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The purpose of this study was to compare costs and dimensional control parameters between same geometry parts obtained by same prototyping techniques using different material moulds. Vacuum casting was used to obtain prototypes of a three‐blade helix of a motor boat propeller. Aluminium and...
This paper introduces a knowledge‐based environment dedicated to the choice of rapid product development processes. Rapid product development processes are not limited to layer‐manufacturing machines, but they also integrate CAD, reverse engineering, indirect methods for metallic and plastic...
A method for rapid prototyping based on electrophotographic powder deposition was investigated to study its potentials and to identify design and implementation challenges. This technique is referred to here as the electrophotographic rapid prototyping (ERP). In this technique, powder is printed...
Selective laser sintering can be used to manufacture injection mould inserts using an indirect metal laser sintering process, such as the RapidTool™ process commercialised by 3D Systems. The volume of material to be laser processed for insert manufacturing is very high when compared to that for...
The effect of humidity, temperature and temperature ramping rate on the dimensional changes of the photo‐cured stereolithography (SL) resin SL5195 was investigated. It was found that moisture absorption by the SL resin is a very slow process at ambient temperatures. Varying relative humidity...
A comparative characterisation of selective laser sintering (SLS) mechanisms of single‐ and two‐component powders is presented. The effects of the volume fraction of liquid phase and the powder absorptance were discussed. Single‐component Ni‐alloy, Fe and Cu powders as well as...
This paper describes the rapid development process for emitter which is the key part in water‐saving irrigation device. The design of labyrinth‐channel in emitters, the generation of process‐oriented structural CAD model, the building of emitter prototype and its integrative experimental...
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