Abstract: In this paper, epoxy resin (EP) was used to post processing PC selective laser sintering (SLS) parts, and the effect of post processing on the mechanical properties of PC SLS parts was studied. After the post processing by EP, PC SLS parts was changed from porous parts into full density parts and the tensile strength, tensile modulus, and impact strength of PC parts were greatly improved. The tensile strength of PC parts increased from 0.39～2.29 MPa to 40 MPa, tensile modulus increased from 2.19～17.13 MPa to around 500 MPa, impact strength increased from 0.92～3.13 kJ/m2 to around 7 kJ/m2.

Key words: property, selective laser sintering, polycarbonate, epoxy resin, post processing