Advances in modeling the effects of selected parameters on the SLS process
Abstract
Selective laser sintering (SLS) is a leading process for developing rapid prototype objects by selectively fusing layers of powder according to numerically defined cross‐sectional geometry. The process has the potential to become an indispensable industrial tool. However, continuous process improvement is necessary. Improved understanding of the parameter effects on the process response is expected to lead to process advances. In this work the analytical problem describing the energy delivery, heat transfer and sintering process along with other pertinent phenomena is studied. Physical experiments and implementation of a numerical simulation are conducted using Bisphenol‐A polycarbonate. The effects of selected parameters on the SLS process response are examined. The primary parameters of interest are the laser power, laser beam velocity, hatch spacing, laser beam spot size and scan line length. This work shows that the secondary process parameters, delay period and number of effective exposures have a significant influence on the process response.
Keywords
Citation
Williams, J.D. and Deckard, C.R. (1998), "Advances in modeling the effects of selected parameters on the SLS process", Rapid Prototyping Journal, Vol. 4 No. 2, pp. 90-100. https://doi.org/10.1108/13552549810210257
Publisher
:MCB UP Ltd
Copyright © 1998, MCB UP Limited