期刊
COMPUTER-AIDED DESIGN
卷 34, 期 10, 页码 717-725出版社
ELSEVIER SCI LTD
DOI: 10.1016/S0010-4485(01)00201-9
关键词
rapid technologies; rapid prototyping; material deposition; surface roughness measurements; roughness visualisation
When considering the use of rapid prototyping (RP), there are many questions a designer might ask. One such question is what build orientation should be used to minimise the adverse effects of surface roughness? At present, this decision is often made in an intuitive way or sometimes overlooked completely. This paper describes a methodology and software implementation that provides the designer with a computer graphics based visualisation of RP model surface roughness. This enables the build orientation to be determined as a result of increased designer knowledge. The surface roughness values were obtained through an extensive empirical investigation of several RP techniques. These are used as the database for a visualisation algorithm that represents varying surface roughness of the R-P model as colour shading within a CAD image. The nature of the empirical measurements is analysed and the functionality of the software algorithm is described. Examples are given that demonstrate the use and benefits of the methodology. Finally, conclusions are drawn as to the significance of the work and future research directions are outlined. (C) 2002 Elsevier Science Ltd. All rights reserved.
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