Inhomogeneous Shrinkage of Polymer Materials in Selective Laser Sintering 298

dc.creatorSteinberger, J.
dc.creatorShen, J.
dc.creatorGöpfert, J.
dc.creatorGerner, R.
dc.creatorDaiber, F.
dc.creatorManetsberger, K.
dc.creatorFersti, S.
dc.date.accessioned2019-09-23T16:11:58Z
dc.date.available2019-09-23T16:11:58Z
dc.date.issued2000
dc.description.abstractIt is well known that the laser beam of an SLS machine can be controlled almost exactly. The inaccuracy of the mechanical movements of the machines is also much lower than the actual errors of the SLS parts. How can we explain this discrepancy? One answer is the temperature inhomogeneity in the build field and in the part bed. In this article the effect of temperature dependent volume relaxation of pre-sintered polymer parts on the inaccuracy of the SLS process will be discussed. The investigation shows that it depends on the temperature, pressure and time. Measurements of the temperature distribution in an SLS part bed were carried out. By determining coordinate-dependent scaling factors, an empirical method to compensate this nonlinear shrinkage is presented in this article.en_US
dc.description.departmentMechanical Engineeringen_US
dc.identifier.urihttps://hdl.handle.net/2152/75952
dc.identifier.urihttp://dx.doi.org/10.26153/tsw/3051
dc.language.isoengen_US
dc.relation.ispartof2000 International Solid Freeform Fabrication Symposiumen_US
dc.rights.restrictionOpenen_US
dc.subjectInhomogeneousen_US
dc.titleInhomogeneous Shrinkage of Polymer Materials in Selective Laser Sintering 298en_US
dc.typeConference paperen_US

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