Miguel Angel Peydro

A review of concurrent engineering

94 Abstract— This paper attempts to explain and disaggregate different focuses of concurrent engineering, analyzing their application to product development and highlighting the improvements involved in their enforcement. Improvements can be observed in projects (quality), in scheduling (reducing the duration) and the cost of implementation (savings), basic achievements of concurrent engineering. Companies that already apply concurrent engineering are often multinationals, being the majority group in use. Its implementation in medium and small businesses is a very useful and achievable goal, in a field that has not developed the methodology. The entire organization (human group) is involved in the implementation of concurrent engineering, with an effort aimed at multifunctional integration and development of both product and process concurrently.

Study, mechanical characterization and mathematical modeling of compatible SEBS blends for industrial applications in orthopedics and childcare

In this work, a system of compatible blends based on two commercial grades of a thermoplastic elastomer, styrene-ethylene/butylene-styrene (SEBS), with extreme Shore A hardness values (5 and 90), was studied in order to obtain a range of different performance blends for orthopedic and childcare applications, where usually liquid silicone rubber is used. Mechanical properties of different blends were obtained, and Equivalent Box Model (EBM) was used for the prediction of the mechanical behavior. The results show good agreement between the theoretical model and experimental data of new blends of SEBS.

COMPUTER AIDED ENGINEERING IN THE INJECTION MOLDING PROCESS: DETERMINATION OF SPECIFIC HEAT CAPACITY OF A THERMOPLASTIC

One important property of thermoplastics is specific heat capacity. This property, along with others, determines the solidification time of the material inside the mold. In this work the most precise process was used. Finally, Computer simulation was used to determine optimum process conditions and ie, the injection pressure and cycle time.