Irregular Shape Effect of Brass and Copper Filler on the Properties of Metal Epoxy Composite (MEC) for Rapid Tooling Application

Due to their low shrinkage and easy moldability, metal epoxy composites (MEC) are recognized as an alternative material that can be applied hybrid mold inserts manufactured with rapid tooling (RT) technologies. Although many studies have been conducted on MEC or reinforced composite, research the properties, especially thermal conductivity compressive strength, contribute overall insert performance molded part quality still lacking. The purpose of this is investigate effect cooling efficiency using materials. Thus, aims appraise a new formulation materials by further improving performance. effects thermal, physical, mechanical properties were examined particles brass (EB), copper (EC), combination + (EBC) in irregular shapes. These weighed at percentages ranging from 10% 60% when mixed resin produce specimens according related ASTM standards. A microstructure analysis was made scanning electron microscope (SEM) particle distribution. When filler composition increased 60%, values density (g/cm3), hardness (Hv), (W/mK) showed linear upward trend, highest value occurring percentage. addition average strength between 20% 30% composition. Compressive indicated nonlinear uptrend decreased increasing more than 30%. maximum for EB, EC, EBC within range 90–104 MPa, EB having (104 MPa). ANSYS simulation software used conduct transient order evaluate inserts. EC outperformed terms based results high conditions.