Due to product features such as production quality and high surface quality, cold forging extrusion methods are widely used in the of fasteners. Extrudability plays a key role during process is affected by many parameters. Die shape characteristics directly affect deformation. In particular, deformation hardening influenced characteristics. The also significantly affects mechanical properties. ...

Hot-melt extrusion is one of the most widely applied processing technologies in the plastic, rubber and food industry. Today this technology has found its place in the array of pharmaceutical manufacturing operations. Melt extrusion process are currently applied in the pharmaceutical field for the manufacture of a variety of dosage forms and formulations such as granules, pellets, tablets, supp...

The processing during extrusion can be done either in the steady or transient state. In the first case, all components are added continuously in the extruder and the machine produces great quantities of mixed compound. In the transient state, the polymer that will form the matrix is fed continuously in the extruder and all other components are added as a single or multiple pulse. The mixed mate...

Plant-based meat analogues that mimic the structure and texture of are becoming very popular. They can be produced using high moisture extrusion (HSE). . High protein materials first undergo intense thermomechanical treatment in extruder barrel then textured simultaneously cooled die. The mechanisms underlying this structuring process not sufficiently understood depend on numerous interconnecte...

Friction extrusion processing describes the of metallic materials via severe plastic deformation imposed by friction-induced heat and shear strain. The process features relative rotational movement between die feedstock material, resulting in complex introduction affecting local thermal material flow conditions. While powders, chips bulk for improvement extrudate properties has been studied ind...

Abstract. The variation of tool performance and nonuniform process parameters in metal forming are some the factors that complicate life modeling analysis such processes. In this work, a brief discussion about machine learning analyzing extrusion as well modeling, an implemented work using to predict failure modes for H13 Steel die used 6063 Aluminum hot is presented. conducted on set steel die...

Fabrication of highly dense parts with complex geometry by paste-extrusion-based solid freeform fabrication processes requires a precise control of the extrusion flow rate to dispense material on demand, which is often referred as Extrusion-On-Demand (EOD). The extrusion process for aqueous ceramic pastes is complex and difficult to control due to their non-Newtonian behavior, compressibility a...

This article reviews the infrequently utilized treatment method of forced eruption and how it can serve as an alternative to the sacrifice of the natural root system. Forced eruption can preserve the natural root system and related periodontal architecture, resulting in years of additional service for the patient. It also can maintain adjacent tooth structure while retaining the option for futu...

The extrusion flow instabilities of two commercial styrene-butadiene rubbers are investigated as they vary in isomer content (1,4-cis, 1,4-trans, and 1,2 conformation) the butadiene monomer molecular architecture (linear, branched). samples have similar multimodal weight distribution. Two geometries dies, slit round capillary, compared terms type spatial characteristics instabilities. latter qu...

Purpose. Estimation of optimal viscosity a glass lubricant for chromium-nickel steel tube extrusion depending on the deformation resistance, chemical composition metal and temperature, degree rate deformation. Methodology. To determine force conditions extrusion, complex factor resistance was used, which consists in estimating value under basic process parameters plants its refinement deviation...