DOI: 10.21276/sjet.2016.4.11.1

Pages: 520-526

This study, centres on the assessment of the properties of medium carbon steel for injection mould, heat treatment of the mould materials and reassessment of the heat treated medium carbon steel mould material at a temperature of 850oC, 900oC and 950oC respectively and quenched with condemned oil (quenchant) for a period of 40 minutes. Knowledge based softwares: Creo-elements/Pro5.0, Granta and ANSYS workbench 14.0 were used to model the geometry, select material and performed structural and thermal analysis to ascertain the integrity of the assessed and reassessed mould properties. The maximum equivalent von –mises stress and directional deformation of the structural analysis of the mould material before heat treatment were 3.441*109Pa and 9.0095*10-4m, On the other hand, the maximum equivalent von –mises stress and directional deformation of the structural analysis of the mould after heat treatment were 3.432*109Pa and 8.4722*10-4m respectively. Also, the maximum total heat flux and directional heat flux of the steady state thermal analysis of the untreated mould material were 4.0978*10-6W/m2 and 3.7404*10-6W/m2 respectively, on the other hand, the maximum total heat flux and directional heat flux of the thermal analysis of the heat treated mould material were 4.5502*10-6W/m2 and 4.3822*10-6W/m2 respectively. Comparatively, the heat treated mould would perform better in reliability and durability than the un-heat treated.