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Journal articles on the topic 'Thermoset processing; Injection machine'

Author: Grafiati

Published: 4 June 2021

Last updated: 5 February 2022

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1

Deringer, Tim, and Dietmar Drummer. "The influence of mold temperature on thermoset in-mold forming." Journal of Polymer Engineering 40, no. 3 (2020): 256–66. http://dx.doi.org/10.1515/polyeng-2019-0322.

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AbstractA new process, called thermoset in-mold forming, for combining thermoset master forming and thermoset forming in one mold is in development. A pre-impregnated continuous-fiber reinforced sheet based on epoxy (prepreg) is formed in the injection molding machine, followed by instantaneous overmolding of a short-fiber reinforced epoxy compound in one step. Compared with conventional processes in which thermoset injection molding, prepreg compression molding, and hence curing of the materials are separated, the new process allows for the combination in one step and simultaneous curing of b

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2

Stiller, Jonas, Daisy Nestler, Erik Päßler, et al. "Modification of the Thermoset Injection Moulding Process for Shaping to Increase the Fibre Length in C/C-SiC Ceramics Produced by the LSI Process." Key Engineering Materials 809 (June 2019): 153–60. http://dx.doi.org/10.4028/www.scientific.net/kem.809.153.

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Ceramic-matrix composites (CMC) made of carbon and silicon carbide dual matrix reinforced with carbon fibres (C/C-SiC) have exceptional heat, thermal shock, creep, and wear resistance, while also having little density and high strength. In comparison to monolithic ceramics, CMC possess ductility and damage tolerance, which opens this material for severe applications. Starting in space applications, this material is today well established in friction applications, where lightweight high-performance brakes securely decelerate e.g. luxury cars or elevators. The high production costs still limit t

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Arifin, Mohd Khairol A., Shamsuddin Sulaiman, B. T. Hang Tuah Baharudin, Tang Sai Hong, and S. Sreenivasan. "Simulation of Thermoset Injection for Bulk Moulding Compounds (BMC)." Key Engineering Materials 471-472 (February 2011): 1101–6. http://dx.doi.org/10.4028/www.scientific.net/kem.471-472.1101.

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This paper discusses about the simulation of the process of injection moulding for thermoset materials namely Bulk Moulding Compounds (BMC). BMC is a polyester resin based compound with glass fibre additives. In this paper a complex part was used to simulate and obtain the parameters for moulding BMC. Autodesk Moldflow Plastics Insight was used to run the simulation. Two main parameters i.e. Injection time and mould temperature were considered. Six different sets of parameters were used and the settings were optimized. The obtained optimized settings are 15.08 seconds and 145°C. The obtained

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4

Fujiwara, Hiroaki, Bong Sup Kim, and Takashi Inoue. "Reactive processing of thermoset/thermoplastic blends: A potential for injection molding." Polymer Engineering & Science 36, no. 11 (1996): 1541–46. http://dx.doi.org/10.1002/pen.10549.

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Hopmann, Christian, Matthias Theunissen, and Stefan Haase. "Analysis of the process influences on injection molded thermosets filled with hollow glass bubbles." Journal of Polymer Engineering 38, no. 7 (2018): 695–701. http://dx.doi.org/10.1515/polyeng-2017-0347.

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Abstract Thermoset molding compounds have a wide range of beneficial properties such as easy handling, high temperature, chemical resistance, low shrinkage as well as low electrical conductivity. However, these properties come at the cost of a higher density than technical thermoplastic materials and thus the potential for lightweight applications is reduced. Due to the low viscosity of the resin within thermoset molding compounds a wide variety of filler materials can be used. The addition of low density hollow glass bubbles as a filler material in thermoset molding compounds offers the oppor

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Yang, Tie Niu, Xiao Jun Wang, and Hou Ya Wu. "Researches of the Measurement Instrument in the Plastic Injection Machine Bore and Data Processing." Applied Mechanics and Materials 496-500 (January 2014): 1180–84. http://dx.doi.org/10.4028/www.scientific.net/amm.496-500.1180.

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The wear of the plastic injection molding machine bore has an effect on the quality of the machine to some extent. In order to pursuit the maximum of comprehensive benefits in plastic molding factory. Its necessary to design economic, efficient, dedicated instrument which measure inner diameter in the machine bore. In this paper, the measurement instrument in the plastic injection molding machine bore uses eddy current sensors non-contact measurement theory and virtual instrument technology, it can measure the degree of wear in the plastic injection molding machine bore easily. The results are

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Sui, Xin, Bao Hui Wang, Hai Ming Wu, et al. "Effects of Processing on Mechanical Properties of Polypropylene Composites." Advanced Materials Research 750-752 (August 2013): 156–59. http://dx.doi.org/10.4028/www.scientific.net/amr.750-752.156.

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Based on the mechanism of processing and molding of multivariate polypropylene composite system, this paper studies the effect of the screw length-to-diameter ratio and the wedge angle of the helix angle of the twin-screw extruder on the properties of elongation at break of polypropylene composite. The relationship between injection temperature and injection pressure of injection molding machine is also analyzed. Experiments show that when length-to-diameter ratio is 30, and wedge angle is 16±5o, the elongation at break of test sample reaches its maximum value and tends to be stable. When melt

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8

Ragan, Emil, Petr Baron, and Jozef Dobránsky. "Sucking Machinery of Transport for Dosing Granulations of Plastics at Injection Molding." Advanced Materials Research 383-390 (November 2011): 2813–18. http://dx.doi.org/10.4028/www.scientific.net/amr.383-390.2813.

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Advantageous properties of plastic materials, low investment costs for a production, cheap and productive processing method were given the rapid development of plastic materials. In this time injection molding technology is the most using technology for processing plastics in our country. Quality of the plastics processing depends mainly on the quality of material and preparing it for production. The first step in the processing of plastic by injection molding is dosing of granulations from hopper of injection machine unit. Task of this contribution is to theoretically describe a pneumatic met

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Dempsey, Daniel, Sean McDonald, Davide Masato, and Carol Barry. "Characterization of Stereolithography Printed Soft Tooling for Micro Injection Molding." Micromachines 11, no. 9 (2020): 819. http://dx.doi.org/10.3390/mi11090819.

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The use of microfeature-enabled devices, such as microfluidic platforms and anti-fouling surfaces, has grown in both potential and application in recent years. Injection molding is an attractive method of manufacturing these devices due to its excellent process throughput and commodity-priced raw materials. Still, the manufacture of micro-structured tooling remains a slow and expensive endeavor. This work investigated the feasibility of utilizing additive manufacturing, specifically a Digital Light Processing (DLP)-based inverted stereolithography process, to produce thermoset polymer-based to

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F. A. Silva, João, Tânia M. T. Carvalho, Margarida L. Almeida, et al. "Use of Multi-Hollow Polyester Particles as Opacifying Agent for Injection-Molded Polyethylene." Polymers 12, no. 6 (2020): 1331. http://dx.doi.org/10.3390/polym12061331.

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Titanium dioxide is considered the most efficient white pigment for opacification of thermoplastics. However, its high cost, combined with strong price oscillations due to production bottlenecks, has been driving the industry towards alternatives that might allow reducing the titanium dioxide content, while maintaining the product’s opacity. A strategy commonly used in waterborne paints consists in adding hollow polymer particles to the formulation, therefore achieving opacification due to light refraction at the air/polymer interface. In the current work, we show preliminary results that indi

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Choi, Insung, Su-Jin Lee, Dongsig Shin, and Jeong Suh. "Green Picosecond Laser Machining of Thermoset and Thermoplastic Carbon Fiber Reinforced Polymers." Micromachines 12, no. 2 (2021): 205. http://dx.doi.org/10.3390/mi12020205.

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There has been an increase in demand for the development of lightweight and high-strength materials for applications in the transportation industry. Carbon fiber reinforced polymer (CFRP) is known as one of the most promising materials owing to its high strength-to-weight ratio. To apply CFRP in the automotive industry, various machining technologies have been reported because it is difficult to machine. Among these technologies, picosecond laser beam-induced machining has attracted great interest because it provides negligible heat transfer and can avoid tool wear. In this work, we conducted

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AKASHI, TOMOYUKI. "Recent trends in technology of rubber processing. Process control in injection moulding machine." NIPPON GOMU KYOKAISHI 62, no. 3 (1989): 182–89. http://dx.doi.org/10.2324/gomu.62.182.

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13

Long, Jing, Bing Bing Chen, Chun Liang Zhang, and Liang Liang Zhang. "Heat Pipe Cooling Scheme Analysis of Injection Molding Machine Controller." Applied Mechanics and Materials 441 (December 2013): 150–53. http://dx.doi.org/10.4028/www.scientific.net/amm.441.150.

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In the long run, the problem of high temperature has been existed in a companys injection molding machine controller. In order to solve the heat dissipation problem, two kinds of heat pipe heat dissipation schemes are designed, CFD software ICEPAK is used in the report to make a numerical simulation as well as a simulation analysis of the Heat pipe cooling scheme. By comparing two kinds of cooling mode heat pipe cooling effect and structure process, Vertical-type heat pipe cooling solution that meets the cooling requirements and makes heat-sensitive components stay away from high-temperature,

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Rus, Anika Zafiah Mohd, Nurul Syamimi M. Salim, and M. F. Idaris. "Processing of Sustainable Polymer with Thermoplastics by Injection Moulding." Applied Mechanics and Materials 799-800 (October 2015): 57–61. http://dx.doi.org/10.4028/www.scientific.net/amm.799-800.57.

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Among different natural oils, recycling of waste vegetable oils from palm oil is widely explored for polyol synthesis to prevent pollution of waterways and clogging private and municipal drain systems, restaurants and other food preparation. The polyol is solidifying using cross linker and known as Sustainable Polymer (SP). SP is compounded with High-Density Polyethylene (HDPE) and Low-Density Polyethylene (LDPE) by melt-mixing using an injection molding machine. The effect of polymer compounding ratio on the mechanical properties was studied by tensile test. The result indicated that increasi

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15

Thilmany, Jean. "A New Kind of Design." Mechanical Engineering 131, no. 01 (2009): 36–40. http://dx.doi.org/10.1115/1.2009-jan-3.

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This article highlights three-dimensional printing as a rapid pro to typing process that builds objects by depositing a material such as thermoset resin in layers one on the other. Desktop 3D printers are now relatively inexpensive. Traditionally, printed models have been dipped in an epoxy resin. FigurePrints uses an automated system from xlaForm that allows parts to be infused in bulk in a heating machine. This method cuts processing time and labor costs, but is still time-consuming and allows processing only in batches. Wohlers is also watching Shapeways of Eindhoven in the Netherlands, whi

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Lockner, Yannik, and Christian Hopmann. "Induced network-based transfer learning in injection molding for process modelling and optimization with artificial neural networks." International Journal of Advanced Manufacturing Technology 112, no. 11-12 (2021): 3501–13. http://dx.doi.org/10.1007/s00170-020-06511-3.

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AbstractThe necessity of an abundance of training data commonly hinders the broad use of machine learning in the plastics processing industry. Induced network-based transfer learning is used to reduce the necessary amount of injection molding process data for the training of an artificial neural network in order to conduct a data-driven machine parameter optimization for injection molding processes. As base learners, source models for the injection molding process of 59 different parts are fitted to process data. A different process for another part is chosen as the target process on which tra

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Bharath Kumar, B. R., Mrityunjay Doddamani, Steven E. Zeltmann, Nikhil Gupta, M. R. Ramesh, and Seeram Ramakrishna. "Processing of cenosphere/HDPE syntactic foams using an industrial scale polymer injection molding machine." Materials & Design 92 (February 2016): 414–23. http://dx.doi.org/10.1016/j.matdes.2015.12.052.

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18

Jiang, Chong Ran, Bin Shan Xu, Hong Bo Zhai, and Yan Zhong Huo. "Research and Design of Servo Electric Control System for Injection Mould Machine." Applied Mechanics and Materials 574 (July 2014): 523–27. http://dx.doi.org/10.4028/www.scientific.net/amm.574.523.

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An automatic injection mould machine for servo electric control system was introduced to deal with the existing problem of the control system of hydraulic injection mould machine. With the industrial control computer, the embedded industrial control computer is used as Main Processing Unit, other four units which are ejection, measurement, mode-locked and ejector were controlled by servo motor computer, with the combination of the control structure of cascade system. With the transformation instruction of AC servo, the control was accurate, the quality of products were improved, the energy was

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19

Deringer, Tim, Christian Gröschel, and Dietmar Drummer. "Influence of mold temperature and process time on the degree of cure of epoxy-based materials for thermoset injection molding and prepreg compression molding." Journal of Polymer Engineering 38, no. 1 (2018): 73–81. http://dx.doi.org/10.1515/polyeng-2016-0409.

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Abstract A new hybrid process for fiber-reinforced plastics based on thermosets combining master-forming and forming in one tool is currently undergoing development. The advantage of this technique is the integrated forming and overmolding of a thermoset-based continuous fiber-reinforced sheet in one step. Although both components are epoxy based, the resin formulations slightly differ and thus require individual curing parameters. For successful combination into one process, it is essential to investigate both components in relation to the processing parameters and their influence on the degr

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20

Qiu, Jian Hui, Kengo Uchiya, Lei Lin, Xue Li Wu, and Yang Zhao. "Surface Electrical Resistances Properties of CNF/PC Nano-Composite Processing by Injection Molding." Advanced Materials Research 339 (September 2011): 367–70. http://dx.doi.org/10.4028/www.scientific.net/amr.339.367.

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In the present work, carbon nanofibers (CNF) were dispersed into polycarbonate (PP) with an injection molding machine. The effect of the injection conditions on the electrical resistance of carbon nanofiber/polycarbonate (CNF/PC) nanocomposites was investigated. It was found that the surface resistance decreased with the increase of injection speed and injection temperature. The surface electrical resistance was affected by the particle size and dispersion of CNF, the effect of depth on surface resistance of the composites was studied, the surface electrical resistance sharply increased from t

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Yang, Hong Cai, and Ming Qing Wu. "NC Processing Network Platform RS-232-C Interface Circuit Design." Advanced Materials Research 529 (June 2012): 29–32. http://dx.doi.org/10.4028/www.scientific.net/amr.529.29.

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RS-232-C and a modem together, the interface can connect all kinds of different types of micro computer, so that they can direct communication. Nowadays more popular FANUC series CNC system, and the machine is equipped with a 25 injection of RS-232-C asynchronous serial communication interface standards, connect the computer and programmer and peripherals. With MAX232 chip design of interface circuit DB9.

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Wang, Quan, and Zhenghuan Wu. "Analysis on vibration characteristics of screw in filling process of dynamic injection molding machine." Journal of Polymer Engineering 36, no. 8 (2016): 861–66. http://dx.doi.org/10.1515/polyeng-2015-0318.

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Abstract This paper presents a study of the characteristics of axial vibration of a screw in the filling process for a novel dynamic injection molding machine. By simplifying a generalized model of the injection screw, physical and mathematic models are established to describe the dynamic response of the axial vibration of a screw using the method of lumped-mass. The damping coefficient of the screw is calculated in the dynamic filling process. The amplitude-frequency characteristics are analyzed by the simulation and experimental test of polypropylene. The results show that the amplitude of a

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Fernandez, Angel, Manuel Muniesa, Carlos Javierre, and Victor Camanes. "Influence of the Processing Conditions on the Mechanical Properties of PA 6 - Halloysite Nanotubes Nanocomposites for Injection Moulding." Advanced Materials Research 445 (January 2012): 313–18. http://dx.doi.org/10.4028/www.scientific.net/amr.445.313.

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Nowadays polymer based nanocomposites are very interesting to manufacture products of less weight and higher mechanical properties and specific performance depending on the morphology of nanoscaled reinforcement. Most of these potential improvements are focused to the challenges newer products require like HEV (hybrid or electrical vehicles) for example. The development of these new products requires the full characterization of the rheological and mechanical behavior of the materials and the correct preparation of the raw material for further processing. As an example two nanocomposite blends

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Ibañez, Ruben, Fanny Casteran, Clara Argerich, et al. "On the Data-Driven Modeling of Reactive Extrusion." Fluids 5, no. 2 (2020): 94. http://dx.doi.org/10.3390/fluids5020094.

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This paper analyzes the ability of different machine learning techniques, able to operate in the low-data limit, for constructing the model linking material and process parameters with the properties and performances of parts obtained by reactive polymer extrusion. The use of data-driven approaches is justified by the absence of reliable modeling and simulation approaches able to predict induced properties in those complex processes. The experimental part of this work is based on the in situ synthesis of a thermoset (TS) phase during the mixing step with a thermoplastic polypropylene (PP) phas

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Schmidt, René, Alexander Graf, Ricardo Decker, et al. "Monitoring the Structural Health of Glass Fibre-Reinforced Hybrid Laminates Using Novel Piezoceramic Film." Sensors 20, no. 18 (2020): 5428. http://dx.doi.org/10.3390/s20185428.

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This work investigates a new generation structural health monitoring (SHM) system for fibre metal laminates (FML) based on an embedded thermoplastic film with compounded piezoceramics, termed piezo-active fibre metal laminate (PFML). The PFML is manufactured using near-series processes and its potential as a passive SHM system is being investigated. A commercial Polyvinylidene fluoride (PVDF) sensor film is used for comparative evaluation of the sensor signals. Furthermore, thermoset and thermoplastic-based FML are equipped with the sensor films and evaluated. For this purpose, static and dyna

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Kawashima, Hidetaka, and Minoru Shimbo. "Effect of Key Process Variables on Microstructure of Injection Molded Microcellular Polystyrene Foams." Cellular Polymers 22, no. 3 (2003): 175–90. http://dx.doi.org/10.1177/026248930302200303.

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The effect of control factors as key process variables on injection molds of microcellular plastics were investigated experimentally in this paper. The continuous foam processing system was constructed using screw preplasticating type injection mold machine, which is capable of supplying blowing agent, plasticity, kneading and keeping of retention time for gas/polymer solution. The propriety of foam processing system constructed in this study was verified. Control factors that affect cell nucleation and growth by injection molding were classified and some of them were considered in this study.

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Rus, Anika Zafiah Mohd, Nurul Syamimi M. Salim, and N. Haiza Sapiee. "Processing Temperature of Sustainable Polymer with Thermoplastics by Injection Molding (Part 2)." Applied Mechanics and Materials 789-790 (September 2015): 85–89. http://dx.doi.org/10.4028/www.scientific.net/amm.789-790.85.

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Moving to a more sustainable and healthy future, the world has decided to invest on researches to make good use of waste vegetable oil rather than letting them clog the drains and hence, polluting the environment. One of the useful projects which uses these waste cooking oil is to synthesize polyols. Solidifying the polyols using cross linker produces a Sustainable Polymer (SP). These SP are compounded with the High-Density Polyethylene (HDPE) by melt-mixing using injection molding machine. Injection molding is capable of producing many useful products. Therefore, aiming to analyse the process

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Othman, M. H., Sulaiman Hasan, Mohd Halim Irwan Ibrahim, and Siti Zubaidah Khamis. "Optimum Injection Moulding Processing Condition to Reduce Shrinkage and Warpage for Polypropylene-Nanoclay-Bamboo Fibre with Compatibilizer." Materials Science Forum 889 (March 2017): 51–55. http://dx.doi.org/10.4028/www.scientific.net/msf.889.51.

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The purpose of this research is to optimise the processing condition of injection moulding towards samples made from polypropylene-nanoclay-bamboo fibre with compatibilizer. The defects that have been controlled upon the optimisation were shrinkage and warpage. The selection of injection moulding processing condition was packing pressure, melt temperature, screw speed and filling time. The research started by drying the bamboo fibres at 120°C. Then, the 1 wt. % fibres were mixed with 79 wt. % of polypropylene, 15 wt. % of compatibilizer and 5 wt. % of nanoclay. The mixing process was performed

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Amran, Mohd, Siti Salmah, Mohd Zaki, et al. "The Effect of Pressure on Warpage of Dumbbell Plastic Part in Injection Moulding Machine." Advanced Materials Research 903 (February 2014): 61–66. http://dx.doi.org/10.4028/www.scientific.net/amr.903.61.

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The optimization of processing parameters on warpage of polypropylene (PP) in the application of injection moulding machine was studied. The appropriate parameters were adjusted to reduce the warpage defect on the tensile test specimen of dumbbell. The type of injection moulding machine used in this research is Arburg 420C 800-250C. Four parameters that have been investigated; injection pressure, clamping pressure, back pressure and holding pressure. A concept of design of experiment (DOE) has been applied using Taguchi method to determine the suitable parameters. To measure the warpage of the

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Sateesh, N., S. Devakar Reddy, Ram Subbiah, D. Siva Nagaraju, and BCh Nookaraju. "Processing parameters Optimization of Injection Moulding in DN20 Vent of Water Meter Manufacturing." E3S Web of Conferences 184 (2020): 01008. http://dx.doi.org/10.1051/e3sconf/202018401008.

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The conventional optimization process in Injection Moulding includes actual shop floor trials in which melt temperature, mould temperature, injection time, injection pressure, pattern, feeder size, shape and location cores, mould layout, gating etc. are changed in each iteration which involves high machining cost, tooling cost, modification cost, melting cost, and transportation cost as well as, materials, energy, time are wasted in each trial until and unless the required results are obtained. Water meter component (DN20 Vent) is designed in CREO 5.0, and then components are 3D printed to cro

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Liu, S.-J., and K.-H. Chang. "An empirical study of gas penetration in full-shot gas-assisted injection moulded parts." Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 216, no. 12 (2002): 1549–59. http://dx.doi.org/10.1243/095440502321016305.

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Full-shot gas-assisted injection moulding has increasingly become one of the most important methods used to produce plastic components. It has the advantage of eliminating the switchover mark, which usually occurs on the surface of short-shot gas-assisted injection moulded parts. This paper is devoted to an investigation of the effects of different processing parameters on the length of gas penetration in full-shot gas-assisted injection moulded parts. The first part of this report shows how the gas penetration of moulded parts is optimized. An L'18 experimental matrix design based on the Tagu

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Nian, Shih-Chih, Yung-Chih Fang, and Ming-Shyan Huang. "In-mold and Machine Sensing and Feature Extraction for Optimized IC-tray Manufacturing." Polymers 11, no. 8 (2019): 1348. http://dx.doi.org/10.3390/polym11081348.

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Injection molding is a mature technology that has been used for decades; factors including processed raw materials, molds and machines, and the processing parameters can cause significant changes in product quality. Traditionally, researchers have attempted to improve injection molding quality by controlling screw position, injection and packing pressures, and mold and barrel temperatures. However, even when high precision control is applied, the geometry of the molded part tends to vary between different shots. Therefore, further research is needed to properly understand the factors affecting

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Török, Dániel, and József Gábor Kovács. "Effects of Injection Molding Screw Tips on Polymer Mixing." Periodica Polytechnica Mechanical Engineering 62, no. 3 (2018): 241–46. http://dx.doi.org/10.3311/ppme.12183.

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In all fields of industry it is important to produce parts with good quality. Injection molded parts usually have to meet strict requirements technically and aesthetically. The aim of the measurements presented in our paper is to investigate the aesthetic appearance, such as surface color homogeneity, of injection molded parts. It depends on several factors, the raw material, the colorants, the injection molding machine and the processing parameters. In this project we investigated the effects of the injection molding machine on surface color homogeneity. We focused on injection molding screw

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Kučerová, Monika, and Petr Lenfeld. "Analysis of Parameters with Influence on Material Shrinkage PLA and PLLA." Materials Science Forum 862 (August 2016): 133–40. http://dx.doi.org/10.4028/www.scientific.net/msf.862.133.

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The Paper deals with problematics of analysis of shrinkage biodegradable polymer materials PLA and PLLA in consequence with setup of parameters. Samples for analysis were prepared by technology of injection molding with parameters set according to Taguchi method. The parameters setting consist of injection speed, holding pressure, temperature and wall thickness. Dependency of parameters measured inside of the mold was compared to parameters set on molding machine. By this comparison we have received data for material processing in praxis.

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Chou, Bai Ge, Heng Zhi Cai, Gang Zhou, Ya Jun Zhang, and Jian Zhuang. "Design and Motion Simulation of the Clamping Mechanism of Micro-Structure Injection Molding Machine." Advanced Materials Research 945-949 (June 2014): 670–75. http://dx.doi.org/10.4028/www.scientific.net/amr.945-949.670.

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Micro-structure injection molding machine is mainly used for processing the plastic products in micron-size or with micro-structures. This paper focuses on the design and control of the clamping mechanism of micro-structure injection molding machine. Firstly, the deformation of the clamping mechanism was analyzed. The simulation results shows that the clamping force is 5.0051×105N, and it’s bigger than the design value 500kN. Secondly, the kinetic characteristic of the clamping was simulated by ADAMS software. The curves of the displacement, velocity, clamping force of moving platen were analy

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Xiao, Yong Shan, Zhen Yu Zhao, and Yong Quan Zhou. "Research on 3D Laser Texturing Technology of Mold." Applied Mechanics and Materials 510 (February 2014): 3–7. http://dx.doi.org/10.4028/www.scientific.net/amm.510.3.

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In the processing of the mold texture, the traditional chemical etching exits the shortcomings of the pollution and the long processing cycle. This article will introduce 3D laser processing technology to the mold industry, based on the laser etching principle on the metal surface, etch processing can be made in the mold surface. Through theoretical derivation from the 3D laser scanning optical system, the 3D laser scanning hardware system is structured to apply in the mold cavity texturing, the control algorithm has been studied, and finally in the developed laser-etch machine the texturing e

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Birk, F., F. Ali, M. Schneider, and M. Weigold. "Hochpräzise Faserkunststoffbauteile für den Einsatz in Werkzeugmaschinen/High-precision fiber plastic components for use in machine tools – Hot-pressed fibre-reinforced thermoset components for use in motor spindles." wt Werkstattstechnik online 109, no. 11-12 (2019): 868–72. http://dx.doi.org/10.37544/1436-4980-2019-11-12-70.

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Das Heißpressverfahren zur Herstellung faserverstärkter Duroplastbauteile ist eine geeignete Methode um Bauteile mit komplexer Geometrie herzustellen. Bei der Verwendung von Halbzeugen mit mittlerer Faserlänge sind mit heutigen Auslegungsmethoden und Presswerkzeugaufbauten die erreichbaren Toleranzen für den Einsatz in hochpräzisen Anwendungen für den Werkzeugmaschinenbau noch nicht ausreichend, so dass eine aufwendige spanende Nachbearbeitung folgt. Eine Untersuchung und Optimierung des Verfahrens hinsichtlich der erreichbaren Genauigkeiten bietet daher ein großes Potenzial zur Einsparung der

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Ibrahim, Mohd Halim Irwan, M. Z. Zainol, Mohd Hilmi Othman, Azriszul Mohd Amin, Rosli Asmawi, and Nasuha Sa'ude. "Optimisation of Processing Condition Using Taguchi Method on Strength of HDPE-Natural Fibres Micro Composite." Applied Mechanics and Materials 660 (October 2014): 33–37. http://dx.doi.org/10.4028/www.scientific.net/amm.660.33.

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Injection molding usually uses to produce part from plastic. Other than it is cheap, it also can produce part in large quantity. In this paper, Taguchi Methods was used to define the optimization of process parameter for an injection molding machine to produce a dumbbell product from High-density Polyethylene (HDPE) + natural fiber (Kenaf). Taguchi Methods with L9-34 approaches will be used in this work. Four different formulation of material will be tested to find the best formulation and its parameter setting. Here, an orthogonal array (OA), signal-to-noise (S/N) ratio and analysis of varian

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Adjeisah, Michael, Guohua Liu, Douglas Omwenga Nyabuga, Richard Nuetey Nortey, and Jinling Song. "Pseudotext Injection and Advance Filtering of Low-Resource Corpus for Neural Machine Translation." Computational Intelligence and Neuroscience 2021 (April 11, 2021): 1–10. http://dx.doi.org/10.1155/2021/6682385.

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Scaling natural language processing (NLP) to low-resourced languages to improve machine translation (MT) performance remains enigmatic. This research contributes to the domain on a low-resource English-Twi translation based on filtered synthetic-parallel corpora. It is often perplexing to learn and understand what a good-quality corpus looks like in low-resource conditions, mainly where the target corpus is the only sample text of the parallel language. To improve the MT performance in such low-resource language pairs, we propose to expand the training data by injecting synthetic-parallel corp

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Md Radzi, Mohd Khairul Fadzly, Norhamidi Muhamad, Abu Bakar Sulong, and Zakaria Razak. "Optimizing Injection Parameters of Kenaf Filler Polypropylene Composite by Taguchi Method." Materials Science Forum 894 (March 2017): 81–84. http://dx.doi.org/10.4028/www.scientific.net/msf.894.81.

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Optimization of injection molding parameters provided a solution to achieve strength improvement of kenaf filler polypropylene composites. Since, molded polymers composites possibility being effected by machine parameters and other process condition that may cause poor quality of composites product. Thus in this study, composite of kenal filler reinforced with thermoplastic polypropylene (PP) were prepared using a sigma blade mixer, followed by an injection molding process. To determine the optimal processing of injection parameters, Taguchi method with L27 orthogonal array was used on statist

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Wang, Quan, Xin Ping Ren, and Xiao Sun. "Effect of Parameters on Properties of Polypropylene in Dynamic Injection Molding." Advanced Materials Research 926-930 (May 2014): 77–80. http://dx.doi.org/10.4028/www.scientific.net/amr.926-930.77.

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A Novel Self-Designed Dynamic Injection Molding Machine by Screw Axial Vibration Introduced in Plasticizing Process was Used in the Preparation of Polypropylene Standard Specimens. the Energy Consumption in the Molding Process, the Tensile Stress, Impact Stress, Density and Differential Scanning Calorimeter (DSC) of the Specimens were Measured. the Experimental Results Showed that the Maximum Increment of Tensile Stress and Impact Stress of the Specimens are 9.8%and 13.8% Respectively by Screw Axial Vibration Introduced in Plasticizing Process.The Maximum Increment of Density are 0.3%. the Mel

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Xu, Peilin, and Ziqiang Zhu. "Carrier signal injection‐based sensorless control for permanent magnet synchronous machine drives with tolerance of signal processing delays." IET Electric Power Applications 11, no. 6 (2017): 1140–49. http://dx.doi.org/10.1049/iet-epa.2017.0025.

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Zhao, Peng, Jianfeng Zhang, Zhengyang Dong, et al. "Intelligent Injection Molding on Sensing, Optimization, and Control." Advances in Polymer Technology 2020 (March 31, 2020): 1–22. http://dx.doi.org/10.1155/2020/7023616.

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Injection molding is one of the most significant material processing methods for mass production of plastic products. It is widely used in various industry sectors, and its products are ubiquitous in our daily life. The settings and optimization of the injection molding process dictate the geometric precision and mechanical properties of the final products. Therefore, sensing, optimization, and control of the injection molding process have a crucial influence on product quality and have become an active research field with abundant literature. This paper defines the concept of intelligent inje

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Zou, Jing Chao, Ai Yun Jiang, Bao Feng Zhang, Hai Hong Wu, and Ya Jun Zhou. "Effect of Injection Molding Process on Electrical Conductivity and Mechanical Property of Nanoparticle Filled Polymer Composites." Advanced Materials Research 486 (March 2012): 34–38. http://dx.doi.org/10.4028/www.scientific.net/amr.486.34.

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Authors investigated the relationship among processing parameters, microstructures, electrical conductivity and mechanical property of injection molded nanoparticle filled polymer composites at present study. Standard tensile specimens were injected under different injecting pressures and packing pressures. The molded specimens were removing five layers from the surface to observe the microstructures at different positions of the moldings. The electrical properties were measured with a two-terminal standard resistor under DC condition at room temperature, and the mechanical properties of the m

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Gornik, Christian, and Jochen Perko. "Comprehensive Wear Study on Powder Metallurgical Steels for the Plastics Industry, Especially Injection Moulding Machines." Materials Science Forum 534-536 (January 2007): 657–60. http://dx.doi.org/10.4028/www.scientific.net/msf.534-536.657.

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M390 microclean® of Böhler Edelstahl is a powder metallurgical plastic mould steel with a high level of corrosion and wear resistance and therefore often used in the plastics processing industry. But as a consequence of rapidly advancing developments in the plastics processing industry the required level of wear resistance of tool steels in this field is constantly rising. For that reason a new PM tool steel with higher hardness values and an increased amount of primary carbides has been developed to improve the resistance against abrasive and adhesive wear. The wear resistance of both steels

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Schmid, Matthias, Dominik Altmann, and Georg Steinbichler. "A Simulation-Data-Based Machine Learning Model for Predicting Basic Parameter Settings of the Plasticizing Process in Injection Molding." Polymers 13, no. 16 (2021): 2652. http://dx.doi.org/10.3390/polym13162652.

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The optimal machine settings in polymer processing are usually the result of time-consuming and expensive trials. We present a workflow that allows the basic machine settings for the plasticizing process in injection molding to be determined with the help of a simulation-driven machine learning model. Given the material, screw geometry, shot weight, and desired plasticizing time, the model is able to predict the back pressure and screw rotational speed required to achieve good melt quality. We show how data sets can be pre-processed in order to obtain a generalized model that performs well. Va

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Пристинський, С. В., Ю. О. Будаш, В. І. Ступа та І. О. Пустовойт. "ОСОБЛИВОСТІ ПЕРЕРОБКИ НАПОВНЕНИХ ПОЛІАМІДНИХ КОМПОЗИЦІЙ МЕТОДОМ ЛИТТЯ ПІД ТИСКОМ". Bulletin of the Kyiv National University of Technologies and Design. Technical Science Series 140, № 6 (2020): 71–80. http://dx.doi.org/10.30857/1813-6796.2019.6.7.

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Comparative analysis the main parameters of injection molding and the physic-mechanicals properties of polymer compositions based on polyamide 6.6. Samples we had obtained by injection molding method at injection molding machine ENGEL E-MAC 170/75. The process parameters had determined empirically to achieve certain quality criteria. Physics and mechanicals properties had evaluated by Sharpy impact strength. Statistical data processing, construction of graphs and diagrams had done in MS Excel. During the researching, had done a comparative analysis of the main parameters of the injection moldi

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Nasir, S. M., K. A. Ismail, and Z. Shayfull. "Application of RSM to Optimize Moulding Conditions for Minimizing Shrinkage in Thermoplastic Processing." Key Engineering Materials 700 (July 2016): 12–21. http://dx.doi.org/10.4028/www.scientific.net/kem.700.12.

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This study focuses on the analysis of plastic injection moulding process simulation using Autodesk Moldflow Insight (AMI) software in order to minimize shrinkage by optimizing the process parameters. Two types of gates which is single and dual gates have been analysed. Nessei NEX 1000 injection moulding machine and P20 mould material details are incorporated in this study on top of Acrylonitrile Butadiene Styrene (ABS) as a moulded thermoplastic material. Coolant inlet temperature, melt temperature, packing pressure and cooling time are selected as a variable parameter. Design Expert software

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Van Hoa, Suong, Minh Duc Hoang, and Jeff Simpson. "Manufacturing procedure to make flat thermoplastic composite laminates by automated fibre placement and their mechanical properties." Journal of Thermoplastic Composite Materials 30, no. 12 (2016): 1693–712. http://dx.doi.org/10.1177/0892705716662516.

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Automated fibre placement (AFP) is a relatively new process for the manufacturing of composite structures. Among many attractive features, it provides high-speed of material deposition, more repeatability in terms of quality of the part, less labour intensive (as compared with traditional methods of manufacturing such as Hand Lay-Up), less waste and the ability to transition more seamlessly from design to manufacturing. AFP can be used to process both thermoset composites and thermoplastic composites. Thermoplastic composites processing holds many potential benefits. This is because if the pro

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Thodsaratpreeyakul, Wiranphat, Akio Kataoka, Hirofumi Ichikawa, et al. "Study on the Effective of Utilization in Vent-Type Injection Molding." Key Engineering Materials 728 (January 2017): 277–82. http://dx.doi.org/10.4028/www.scientific.net/kem.728.277.

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. In this study, characteristics of glass fiber reinforced recycled-PET composites by using direct fiber feeding injection molding (DFFIM) process were studied. The results, when varied processing conditions, indicated that decreasing of matrix feeding screw speed and increasing of number of glass fiber led to the increasing of fiber loading content, respectively. The average fiber length of glass fiber tended to decrease with the increasing of fiber loading content. Tensile modulus and tensile strength exhibited almost linear correlation with glass fiber load content. For study on stability o

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