The Experts below are selected from a list of 14736 Experts worldwide ranked by ideXlab platform
Xie Shui-sheng - One of the best experts on this subject based on the ideXlab platform.
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Research and Development of Semi-solid Die-Casting Technologies
Hot Working Technology, 2020Co-Authors: Xie Shui-shengAbstract:The developing history of semi-solid Die-Casting technologies are reviewed,and the current research development of the semi-solid thixotropism Die-Casting and the rheotropism Die-Casting in China and overseas are introduced.The research and application of semi-solid Die-Casting technologies for aluminium alloy and magnesium alloy are emphasized.The difficulties and future development directions of the semi-solid Die-Casting technologies are also discussed.
H. Cui - One of the best experts on this subject based on the ideXlab platform.
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Development of semi-solid Die Casting process technology for aluminium alloy clamp
Materials Science Forum, 2016Co-Authors: Sheng Chen, Q. Zhu, Yihai He, Y.x. Li, Di Li, Faming Zhang, H. CuiAbstract:© 2016 Trans Tech Publications, Switzerland.Compared with traditional liquid and solid processing methods, semi-solid Die Casting process can apparently overcome shrinkage cavity and porosity defects in Castings and high deformation resistance and high residual stress shortcomings in forging parts. Semi-solid Die Casting process with advantages such as high efficiency and low cost, will become the optimal process for high quality automobile parts. In this study, using the clamp as an example, the author introduced product structure optimization and Die design for semi-solid Die-Casting process of aluminum alloy in a new product development. The Computer Aided Engineering technology was applied to the product structure optimization according to the stress analysis. The optimal mold structure, including cavity layout, gating system, overflow and vent systems, were confirmed based on the Die design criteria for traditional Die Casting, combining with the characteristics of semi-solid forming and the simulation results. The semi-solid aluminum alloy clamp parts with excellent performances were finally developed successfully by means of product structure optimization, Die design, parameters optimization of Die Casting process, and the mechanical properties test of products. The existing parts were optimized to make them more suitable for semi-solid Die Casting processing. In addition, a reasonable Die design specially for semi solid processing was an important guarantee for a successful semi solid product applied in industry. Computer numerical simulation was applied in product structure design for semi-solid Die Casting, Die design, Die-Casting process optimization and other aspects, to shorten the development cycle of new product, reduce cost and improve efficiency.
Juraj Ružbarský - One of the best experts on this subject based on the ideXlab platform.
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Possibilities of Pressure Die Casting of Iron Alloys
Management Systems in Production Engineering, 2019Co-Authors: Juraj Ružbarský, J. SitkoAbstract:AbstractThe current trends of production of casts are directed towards production of components disposing of higher accuracy, increased quality of surface and homogenous structure. In case of a thin-walled cast the development of speed of pressing and of pressure was observed inside the mould cavity during pressure Die Casting of ferrous alloys. In case of Die Casting of ferrous alloys the attention was paid to life service of a pressing piston and of a filling chamber. The optimal temperature of the steel Casting ranges from 1600 to 1750°C and optimal mould temperature ranged from 220 to 260°C. The residues having occurred in gates reached the hardness of 38 HRC and in case of casts the value was of 45 HRC. Influence of acting of resistance pressure on the thin-walled casts only minimally. With the increasing resistance pressure the structure becomes more fine-grained and along with the increasing thickness of the wall the influence of the resistance pressure increases as well. Technology of pressure Die Casting of iron alloys can be compared with the pressure Die Casting technology of aluminium alloys. As standard, for pressure Die Casting the cast irons with carbon content of lower than 3% are recommended.
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Al–Si Alloy Casts by Die Casting
Al-Si Alloys Casts by Die Casting, 2019Co-Authors: Juraj RužbarskýAbstract:The monograph is focused on study of the influence of the selected technological parameters of Die Casting upon strength and use properties of Al–Si alloy casts produced in Die Casting. The monograph contains a theoretical part paying attention to the description of Die Casting technology. The practical part revolves around detection of relation between selected technological parameters of Die Casting in regard to strength and use properties represented by tensile strength and porosity of Die casts. The result is characterized relation between the observed technological parameters of Die Casting and the examined properties of Die casts on the basis of Al–Si. The assessment of the individual experiments included dependence between the technological parameters and the examined properties of the cast.
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Dynamics of Treatment Device for Die Casting of Metals
Key Engineering Materials, 2015Co-Authors: Juraj Ružbarský, Rastislav Majerník, P. Hrabě, Petr ValášekAbstract:The aforementioned proves that the grease flow in mould treatment equipment can be regarded as a regulation system with the input quantity by medium pressure p1 above the grease level and with the output quantity by the grease flow speed.The utilization of treatment equipment for Die Casting of metal enhances both the working environment and work culture during Die Casting of metals. Application of grease flow regulation results in better repeatability of Die Casting cycle which positively influences the quality of Castings.
G P Syrcos - One of the best experts on this subject based on the ideXlab platform.
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Die Casting process optimization using taguchi methods
Journal of Materials Processing Technology, 2003Co-Authors: G P SyrcosAbstract:Abstract This paper analyzes various significant process parameters of the Die Casting method of AlSi9Cu13 aluminum alloy. An attempt has been made to obtain optimal settings of the Die Casting parameters, in order to yield the optimum Casting density of the AlSi9Cu13 aluminum alloy Castings. The process parameters considered were: piston velocity (first and second stage), metal temperature, filling time and hydraulic pressure. The effects of the selected process parameters on the Casting density and the subsequent optimal settings of the parameters have been accomplished using Taguchi’s method. The results indicate that the selected parameters significantly affect the density of AlSi9Cu13 aluminum alloy Castings.
Sheng Chen - One of the best experts on this subject based on the ideXlab platform.
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Development of semi-solid Die Casting process technology for aluminium alloy clamp
Materials Science Forum, 2016Co-Authors: Sheng Chen, Q. Zhu, Yihai He, Y.x. Li, Di Li, Faming Zhang, H. CuiAbstract:© 2016 Trans Tech Publications, Switzerland.Compared with traditional liquid and solid processing methods, semi-solid Die Casting process can apparently overcome shrinkage cavity and porosity defects in Castings and high deformation resistance and high residual stress shortcomings in forging parts. Semi-solid Die Casting process with advantages such as high efficiency and low cost, will become the optimal process for high quality automobile parts. In this study, using the clamp as an example, the author introduced product structure optimization and Die design for semi-solid Die-Casting process of aluminum alloy in a new product development. The Computer Aided Engineering technology was applied to the product structure optimization according to the stress analysis. The optimal mold structure, including cavity layout, gating system, overflow and vent systems, were confirmed based on the Die design criteria for traditional Die Casting, combining with the characteristics of semi-solid forming and the simulation results. The semi-solid aluminum alloy clamp parts with excellent performances were finally developed successfully by means of product structure optimization, Die design, parameters optimization of Die Casting process, and the mechanical properties test of products. The existing parts were optimized to make them more suitable for semi-solid Die Casting processing. In addition, a reasonable Die design specially for semi solid processing was an important guarantee for a successful semi solid product applied in industry. Computer numerical simulation was applied in product structure design for semi-solid Die Casting, Die design, Die-Casting process optimization and other aspects, to shorten the development cycle of new product, reduce cost and improve efficiency.