Journal
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
Volume 18, Issue 9, Pages 683-691Publisher
SPRINGER LONDON LTD
DOI: 10.1007/PL00003962
Keywords
over-curing; rapid prototyping; taguchi method
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A solid laser-diode plotter (SLP) system is one of the commercial rapid prototyping (RP) systems developed and marketed in Japan. In the SLP system, two semiconductor lasers are employed instead of a UV laser or a diode-pumped solid state laser, as used in the stereolithography process to cure a specially designed photopolymer. An ascending platform is used to build the suspended solid model, and only a small amount of resin is cured in a thin layer on a plate of glass just below the last layer built. Hence, the SLP system is a low-cost RP system and is well suited for educational purposes, because a high-power laser is not involved and only a small amount of resin is used. However, the over-curing of the overhanging area is a processing problem in the ascending platform method, because the built part is suspended. In order to reduce the over-curing of the SLP pails, the Taguchi method was employed to analyse the processing parameters. The effect of the processing parameters on the over-curing was investigated and presented. The results show that the over-curing of the SLP parts was reduced about 40% using the optimal processing parameters as analysed by the Taguchi method.
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