The Experts below are selected from a list of 17508 Experts worldwide ranked by ideXlab platform
Damir Godec - One of the best experts on this subject based on the ideXlab platform.
-
Energy efficient Injection Moulding of polymers
2011Co-Authors: Damir Godec, Maja Rujnić-sokele, Mladen ŠercerAbstract:Injection Moulding is one of the most important processes of polymer processing. It enables the production of very complex polymer parts, even with different materials, in one cycle. For successful Injection Moulding, Injection Moulding system is necessary. It consists of main elements: the mould, Injection Moulding machine and device for mould temperature regulation (tempering), and additional elements: dryers, robots etc. All of the mentioned elements consume significant amounts of energy. The paper presents the analysis of the possibilities of energy savings in Injection Moulding process, starting with moulded part geometry, in order to obtain more energy efficient process.
-
Central-Composite Design for Optimization of Thin-Walled Injection Moulding in Prototype Mould
2007Co-Authors: Damir Godec, Šercer Mladen, Nikola ŠakićAbstract:Injection Moulding is very complex and complicated process that is determined by a large number of processing parameters. During application of new Injection Moulding procedures, production of new product, using of new materials for Injection Moulding or for elements of mould cavity, most of the time there is a lack of previous knowledge about the influence of particular element of Injection Moulding system on Moulding properties. Therefore it is necessary to determine influences of individual processing parameters on Moulding properties, as well as optimize significant parameters with a goal of achieving satisfactory Moulding properties. Computer simulation of Injection Moulding process enables defining of only initial processing parameters, while detailed process analysis and its optimization is possible to carry out by application of statistical methods. The paper presents an example of application of central-composite design for optimizing of thin-walled Injection Moulding process in prototype mould.
-
Analysis of thin-wall Injection Moulding process
2005Co-Authors: Damir Godec, Matjaž Rot, Mladen ŠercerAbstract:The advanced development of polymer moulds has been marked, among other trends, also by the production of moulded parts with increasingly thin walls. On the one hand such a trend allows saving of material and shorter cycles of Injection Moulding, but on the other hand the production of thin-wall Mouldings requires key parameters at their extreme levels and within very narrow tolerances. The application of CAE analysis in the classical procedure of Injection Moulding has proven to be a very important factor in forecasting and optimising the production parameters as well as Moulding properties. However, in thin-wall Injection Moulding certain differences in the behaviour of polymer materials have been noted, and it is necessary to analyse the applicability of the CAE analysis for thin-wall Injection Moulding. For this purpose two CAE programs have been applied, and the results of simulation have been compared to the results obtained by the experiments in real conditions.
Mladen Šercer - One of the best experts on this subject based on the ideXlab platform.
-
Energy efficient Injection Moulding of polymers
2011Co-Authors: Damir Godec, Maja Rujnić-sokele, Mladen ŠercerAbstract:Injection Moulding is one of the most important processes of polymer processing. It enables the production of very complex polymer parts, even with different materials, in one cycle. For successful Injection Moulding, Injection Moulding system is necessary. It consists of main elements: the mould, Injection Moulding machine and device for mould temperature regulation (tempering), and additional elements: dryers, robots etc. All of the mentioned elements consume significant amounts of energy. The paper presents the analysis of the possibilities of energy savings in Injection Moulding process, starting with moulded part geometry, in order to obtain more energy efficient process.
-
Analysis of thin-wall Injection Moulding process
2005Co-Authors: Damir Godec, Matjaž Rot, Mladen ŠercerAbstract:The advanced development of polymer moulds has been marked, among other trends, also by the production of moulded parts with increasingly thin walls. On the one hand such a trend allows saving of material and shorter cycles of Injection Moulding, but on the other hand the production of thin-wall Mouldings requires key parameters at their extreme levels and within very narrow tolerances. The application of CAE analysis in the classical procedure of Injection Moulding has proven to be a very important factor in forecasting and optimising the production parameters as well as Moulding properties. However, in thin-wall Injection Moulding certain differences in the behaviour of polymer materials have been noted, and it is necessary to analyse the applicability of the CAE analysis for thin-wall Injection Moulding. For this purpose two CAE programs have been applied, and the results of simulation have been compared to the results obtained by the experiments in real conditions.
D. J. Stephenson - One of the best experts on this subject based on the ideXlab platform.
-
Development in Powder Co-Injection Moulding
CIRP Annals, 2000Co-Authors: D. J. Stephenson, P.a. MckeownAbstract:Abstract Powder co-Injection Moulding (PCIM), is a novel technique for the surface engineering of PIM components. The process uses two Moulding feedstocks which are injected into a mould sequentially, so that one feedstock forms the surface layer of the component and the other forms the core. Work to date has shown that the Injection Moulding time and the viscosity ratio of the two feedstock materials are critical in determining the surface layer profile. This has been confirmed through finite element modelling predictions of the skin layer thickness distribution which correlate well with experimental observations.
-
Surface engineering by co-Injection Moulding
Surface and Coatings Technology, 1998Co-Authors: Jeffrey R Alcock, P M Logan, D. J. StephensonAbstract:A novel process, powder co-Injection Moulding (PCM), a development of powder Injection Moulding is described. A twin-barrel Injection Moulding machine has been used to inject two different powder/binder mixtures sequentially into a mould. The new process allows surface engineering during powder Injection Moulding rather than as a post-production stage in the manufacturing cycle. Two examples of co-Injection Moulding are described. The first considers a polymer component having a particulate or fibre-reinforced skin layer. The second discusses the production of dense, layered ceramic or metal components having a corrosion- or wear-resistant surface layer. Modelling of the PCM process is being undertaken using a commercial finite-element modelling program, C-Mold and an example of how this may be used to predict coating thickness is presented.
Monisha Chakraborty - One of the best experts on this subject based on the ideXlab platform.
-
Polymer Injection Moulding: Multimaterial Moulding
Reference Module in Materials Science and Materials Engineering, 2017Co-Authors: W.f. Zoetelief, Monisha ChakrabortyAbstract:Microcellular Injection Moulding (MIM) and Micro Injection Moulding are used to create foamed plastic parts and polymer materials in micron/sub-micron range. Rapid Heat Cycle Moulding is often used together with MIM for better product output. The corresponding mathematical model for simulation work uses Implicit Domain Coupling Algorithm. Powder Co-Injection Moulding using gas-atomised 316L stainless steel powder formed V-shaped and arch-shaped interface in longitudinal and transverse plane respectively. Numerical simulation of the same based on stipulations provided by experimental results helped to form the theoretical model for parameter optimization of the Injection process and homogeneity in material distribution.
M. Fathullah - One of the best experts on this subject based on the ideXlab platform.
-
A parameter study of plastic Injection Moulding process on polypropylene material for USB clip
2018Co-Authors: N. R. A. Rahman, Z. Hamzah, M. H. M. Haris, Noura A. Al-faris, Z. Shayfull, M. FathullahAbstract:Plastic Injection Moulding process has been one of the most widely employed processes in the production of plastics products. Similar to other forming processes, the characteristics of plastic Injection Moulding procedures are significantly affected by different quality level of the plastic products, particularly in regard to its process parameters. Several attempts have been made to investigate the effect of various level of process parameters, or in other words, in determining the efficient frontier of the parameters. A considerable amount of research has determined the effect of parameters in plastic Injection Moulding process as well as its influence on the quality and costs of the product. Hence, the purpose of the current research was to study the effect of different parameters which include Injection Moulding temperature and Injection Moulding pressure on polypropylene work material performed with plastic Injection Moulding process in the case of manufacturing USB Clip.Plastic Injection Moulding process has been one of the most widely employed processes in the production of plastics products. Similar to other forming processes, the characteristics of plastic Injection Moulding procedures are significantly affected by different quality level of the plastic products, particularly in regard to its process parameters. Several attempts have been made to investigate the effect of various level of process parameters, or in other words, in determining the efficient frontier of the parameters. A considerable amount of research has determined the effect of parameters in plastic Injection Moulding process as well as its influence on the quality and costs of the product. Hence, the purpose of the current research was to study the effect of different parameters which include Injection Moulding temperature and Injection Moulding pressure on polypropylene work material performed with plastic Injection Moulding process in the case of manufacturing USB Clip.
-
A parameter study of plastic Injection Moulding process on polypropylene material for USB clip
2018Co-Authors: N. R. A. Rahman, Z. Hamzah, M. H. M. Haris, Noura A. Al-faris, Z. Shayfull, M. FathullahAbstract:Plastic Injection Moulding process has been one of the most widely employed processes in the production of plastics products. Similar to other forming processes, the characteristics of plastic Injection Moulding procedures are significantly affected by different quality level of the plastic products, particularly in regard to its process parameters. Several attempts have been made to investigate the effect of various level of process parameters, or in other words, in determining the efficient frontier of the parameters. A considerable amount of research has determined the effect of parameters in plastic Injection Moulding process as well as its influence on the quality and costs of the product. Hence, the purpose of the current research was to study the effect of different parameters which include Injection Moulding temperature and Injection Moulding pressure on polypropylene work material performed with plastic Injection Moulding process in the case of manufacturing USB Clip.