The aim of the work reported herein was to implement process analytical technology (PAT) tools during hot melt extrusion (HME) in order to obtain a better understanding of the relationship between HME processing parameters and the extruded formulations. For the first time two in-line NIR probes (transmission and reflectance) have been coupled with HME to monitor the extrusion of the water insol...

The present study focussed on the use of Foxtail millet (Setaria italica) along with other flour for production of ready-to-eat snack products using extrusion cooking. The ultimate objective is to add value to millet and other subtropical crops to enable their commercialisation and thereby provide additional livelihood opportunities to the farmers in semi‐arid regions. Composite flours were pre...

Simulation of paste extrusion requires knowledge the material–wall interactions and bulk deformation behaviour. A systematic approach to decoupling these is presented for a stiff paste, comprising microcrystalline cellulose/calcium carbonate/water, employing three different experimental configurations separate paste-wall friction from rheology. The yielding behaviour was identified ram testing ...

Background: Improvement of the mechanical and tribological properties due to extrusion can be attributed to the improved density and excellent bond strength due to high compressive stress. Methods: To avoid the product defects mathematically contoured cosine profiled die was used for the thermomechanical treatment. Improvement of mechanical characterization like density, hardness, compression t...

A comprehensive mathematical model of the hot extrusion process for aluminum alloys has been developed and validated. The plasticity module was developed using a commercial finite element package, DEFORM-2D, a transient Lagrangian model which couples the thermal and deformation phenomena. Validation of the model against industrial data indicated that it gave excellent predictions of the pressur...

PT. XYZ merupakan perusahaan yang bergerak dibidang manufaktur dengan memproduksi aluminium profil. Untuk alumunium profil, menggunakan mesin-mesin beroperasi secara terus menerus setiap harinya. Salah satu mesin digunakan untuk proses produksi adalah Mesin Extrusion. Pada saat ini hanya melakukan penggantian komponen ketika tersebut mengalami kerusakan tanpa adanya penjadwalan terlebih dahulu....

The potential of KOBO unconventional extrusion metallic materials based on phenomenon changing the path plastic deformation with use cyclic oscillation die by given angle and frequency has been presented in this paper. This process is used to change material properties fragmentation grains without preheating billet press parts significantly lower force comparison conventional process. Various t...

Convective heat transfer about an isothermal, cylindrical extrudate of constant diameter, issuing continuously from an extrusion die, is investigated numerically, using a commercial CFD software package. The hot extrudate is assumed to move vertically downward, thus giving rise to a combined regime of forced and free convection in the surrounding fluid. Prandtl number of 0.707, corresponding to...

This paper presents a soft computing strategy to determine the optimum die openings of parison programming of extrusion blow molding process. The design objective is to obtain a uniform thickness of blown parts. The proposed strategy, Fuzzy Neural-Taguchi, first establishes a back propagation network using Taguchi’s experimental array to predict the relationship between design variables and res...