Plastic microlens arrays as a popular optical component has been used in wide range of devices because its low cost, high quality, and easy fabrication using simple methods. Although techniques for have advanced considerably recent years, non molding-based methods however are usually not suitable mass production. On the other hand, production rate, but these less capable creating complex compon...

Hygroscopic swelling characteristics of different types of molding comp ounds and electrical parameters of voltage reference microcircuits encapsulated in plastics were measured after saturation with moisture at 85 C and humidity varying from 20% to 90% RH. Sorption of moisture at high humidity conditions and desorption during baking resulted in deformation of molding compounds of approximately...

Rapid heat cycle molding (RHCM) is a special molding process capable of producing molded plastic parts with high surface quality and improved weldline strength and appearance. This study investigated the influence of the weldline on the tensile strength of RHCM and conventional injection molded (CIM) components. The test specimens with and without a weldline were cut from RHCM and CIM parts for...

In this study, we focus on making a double-sided metal plate with an internal structure, such as honeycomb. The stainless steel powder was used in the metal injection molding (MIM) process. The preliminary studies were carried out for the measurement of the viscosity of the stainless steel feedstock and for the prediction of the filling behavior through Computer Aided Engineering (CAE) simulati...

The quantity of plastic parts in mechanical and electronic industry during past 2-3 decades has a tendency to grow up. Mechatronics systems, in particular, apply many parts of plastic materials. A plastic, which is one of the most versatile materials in the modern age, is widely used because this is an easiest way to get parts of complicated geometrical form and properties. The injection moldin...