Prediction of the properties of photopolymer prototypes

Abstract The study of the mechanical properties of photopolymer material SI500. For the manufacture of experimental samples used the method of rapid prototyping stereolithography. The effect of process parameters on tensile and compression strength was studied. It was found that the mechanical strength of the samples is influenced by the layer thickness, exposure time, and additional processing in an ultraviolet chamber. The values of maximum tensile stresses, which are achieved when the layer is exposed for 30 seconds and additional processing, are determined. Changing the layer thickness does not significantly affect the values of maximum tensile stresses. The maximum is in the range from 53.4 MPa to 55.4 MPa. Values of maximum mechanical strength during compression of the samples is achieved with a flash of 10 seconds. The maximum compressive stresses range from 229 MPa to 230 MPa. Changing the layer thickness does not significantly affect the compressive strength.