Improving fuel efficiency in the transportation fields, such as automotive, vessel, and aircraft, is an important topic from an environmental point of view. From this perspective, the process of manufacturing lightweight products coinciding with the requirements of the parts must be developed.[1-11] This need to reduce transportation weight has led to a major increase in the production of metal matrix composite (MMC) engine parts for automotive applications. Therefore, many studies on the MMCs have been actively performed. The process of manufacturing MMC parts by thixoforming is a very promising technology for manufacturing net-shape products at a relatively low cost. Particulate-reinforced MMCs (PMMCs) combine metallic properties, such as toughness and ductility, with ceramic properties, such as high strength wear resistance and high modulus, leading to superior strength in shear and compression. A 50% increase in modulus, achieved by substituting a discontinuous silicon carbide-reinforced aluminum matrix composite for an unreinforced wrought aluminum alloy, resulted in a 10% reduction in weight.[12-14] The fabrication method of MMCs by the squeeze-casting process has some problems, including the homogeneous dispersion of the particulate's extensive interfacial reactions and particulate fracturing during mechanical stirring,[15,16] In comparison, the powder metallurgy method makes it easy to disperse the reinforcements homogeneously and to control interfacial reaction. However, the squeeze-casting process is lower in cost and is nearer to net-shape manufacturing than powder metallurgy. As a solution to improving the mechanical properties and to reducing manufacturing costs, PMMCs provide an opportunity for thixoforming, which is one of the processes manufacturing net-shaped components. In this work, both mechanical stirring and electromagnetic stirring were used to fabricate PMMCs to vary particle size. The PMMCs were tested before and after reheating using a tensile test with and without heat treatment. The combined process condition with mechanical and electromagnetic stirring for fabricating the PMMCs also is suggested. For the thixoforming of PMMCs, fabricated billets are reheated by using an induction-heating device. The present study focused on the influence of the dispersion state of the SiCp particles on the induction heating temperature and globular microstructure.