The current paper presents the results of a study on processing and characterization waste marble powder-reinforced recycled polyethylene terephthalate (rPET) composites. Samples with up to 20 wt% dust (MD) content were produced twin-screw extrusion followed by injection molding. Subsequently, morphological mechanical features wear resistance developed composites studied. In terms properties, i...

the variations in plastic injection molding process may lead to the inconsistency of molded parts' dimensions. furthermore, due to the speed of production as well as post-shrinkage of molded parts make the control of process difficult and give inaccurate molded parts. the objective of this research is to predict the dimensions of injection molded parts on the basis of cavity pressure durin...

Abstract PLA-based blends were prepared with different ratios of PBS, PBAT and TPS additives to adjust their mechanical processing properties in various temperatures ( ? 20 °C, 0 40 °C). Biodegradable polymeric specimens obtained by preliminary extrusion subsequent injection molding. Tensile properties, e.g., tensile strength, elongation at break, Young’s modulus yield strength evaluated. Next,...

one of the most important parts of power transmission in automotives is c.v. joint, which consists of four components where exterior bowl is one of them. due to its complexity, and importance in automobile and existence of high stresses, forging process is the only cost effective method of production. hence, the best method of production of this part is forging process. the exterior part of c.v...

In infants with cleft lip and palate, failure to thrive (FTT) condition has largely been attributed to early feeding difficulties. Presurgical Nasoalveolar Molding (PNAM) forms an integral part of treatment modality for cleft infants in such conditions, by providing a myriad of benefits.It balances several aspects of treatment such as growth, aesthetics and function in cleft infants and also pr...

Abstract Polymer components are shaped mostly out of the molten state. As in case semi-crystalline polymers, crystallization can be suppressed by shock cooling, thermal process design allows to influence solid bodies properties. A simulation approach that enables predict these properties based on a forecast crystallinity is presented this paper. The main effects consider and possibilities model...

Extrusion, melt spinning, glass fiber production, food processing, and mechanical molding rely on heat transmission. Isothermal techniques have been employed in highly structured equipment living cell temperature regulators. The flow properties of CuO nanofluids flowing through a moving cylindrical isothermal conduit were examined, the presence nanoparticles viscous dissipation. Two-dimensional...

The amalgamation of 3D extrusion printing (3DEP) and sintering results in a low-cost process compared to other laser-based additive manufacturing techniques. This work used metal injection molding (MIM) raw material 17–4 PH steel for manufacturing. printing, debinding, steps were thoroughly evaluated achieve the highest sintered density. First, 3DEP MIM feedstock was carried out using screw-bas...

During the last decades, society’s concern for the environment has increased. Specific tools like the Life Cycle Assessment (LCA), and software and databases to apply this method have been developed to calculate the environmental burden of products or processes. Calculating the environmental impact of plastic products is relevant as the global plastics production rose to 288 million tons in 201...

Process analysis and simulations on molding experiments of 3D thin shell parts have been conducted. Moldings were carried out with polyoxymethylene (POM). The moldings were performed with cavity pressure sensors in order to compare experimental process results with simulations. The warpage was characterized by measuring distances using a tactile coordinate measuring machine (CMM). Molding simul...