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In this study, various flow restrictor geometries were implanted in the runner system of an injection mould with gates of different configurations to attain an optimised runner design and alleviate warpage in plastic lenses. The injection moulding simulation package used was Moldex3D, with the...
Parallel kanban-constant work in process (WIP) (CONWIP) (PKC) integrates kanban and CONWIP systems to regulate separately production of high- and low-demand items. This paper studies the performance of PKC variants under a production environment that requires the entrance of rework parts. A case...
Rotary ultrasonic machining (RUM) is a non-traditional drilling process. It has been used to drill not only brittle but also ductile materials. It was observed that the surface roughness of the drilled hole near the entrance side was better than that near the exit side. However, explanations...
When a scale of metal cutting process reduces to micrometer range, mechanics of material removal are affected by various factors such as workpiece material, cutting tool geometry and cutting conditions. A suitable model of constitutive behaviour of the material is needed to represent properties...
The main objective of the presented paper is developing a new methodology for analytical simulation of broaching operation for the given profiles of workpiece. By utilising B-spline parametric functions, the generalised parametric approach which is developed in this paper is able to represent a...
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