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Journal articles on the topic 'Quality casting'

Author: Grafiati

Published: 3 June 2025

Last updated: 1 August 2025

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1

Zhang, Youwei, Zhongde Shan, Yong Zang, et al. "Casting Process and Quality Control Analysis of Zr705C Zirconium Alloy." Metals 15, no. 4 (2025): 417. https://doi.org/10.3390/met15040417.

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Basic research on and the industrial development of zirconium alloys in China started relatively late, with insufficient domestic production capacity for zirconium alloy castings; especially for large-sized zirconium alloy castings, there is little production experience and significant challenges in quality control. Therefore, the production and research and development of zirconium alloy castings have received widespread attention from academia and industrial production sectors. This article analyzes the production status of domestic zirconium alloy castings, examines the casting process char

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2

Ponomarenko, O. I., S. D. Yevtushenko, N. S. Yevtushenko, T. V. Berlizieva, and M. M. Vorobiov. "Robust methods for controlling casting processes and the quality of castings." IOP Conference Series: Earth and Environmental Science 1254, no. 1 (2023): 012007. http://dx.doi.org/10.1088/1755-1315/1254/1/012007.

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Abstract The paper considers the ways of controlling the processes of producing good-quality castings by using robust methods based on the identification of objects under uncertainty, adaptive control methods, stabilization methods for automatic control systems and their mathematical description. The purpose of the paper is to practically elaborate on the task of creating robust technologies for casting based on the study of the stochastic dispersion models of the casting process parameters and to develop a method for stabilizing the casting processes and a method for stabilizing the quality p

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Gavariev, R. V., and I. A. Savin. "Improvement of Surface Quality of Casting Produced by Casting under Pressure." Solid State Phenomena 265 (September 2017): 988–93. http://dx.doi.org/10.4028/www.scientific.net/ssp.265.988.

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The article considers the surface roughness of compression molds castings received by casting under pressure depending on the condition of the form-building surface. The technological process of casting under pressure is presented for the "Strike plate" product, concrete technological parameters values are specified. The pilot studies of the roughness of the castings throughout the entire period of operation of a compression mold are conducted. Based on the received values the recommendations about improvement of quality of a surface of castings by drawing sheetings are submitted by phisical v

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4

Gaspar, Stefan, and Jan Pasko. "Increase Pressure and Homogeneity of Die Castings from EN AC 47100 Alloy." Applied Mechanics and Materials 729 (January 2015): 108–13. http://dx.doi.org/10.4028/www.scientific.net/amm.729.108.

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In the pressure die casting process, a great attention is paid to a die castings quality improvement. This quality has to be ensured with a great reliability and, at the same time, it is necessary to apply control methods to a technological process which provide a complete picture of a die casting process as well as internal quality of the produced die castings. It requires control of the present technological factors of a pressure die casting process. The contribution deals with the effect of die casting plunger velocity inside a filling chamber on mechanical properties of a die casting produ

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5

Ruan, Xiao Fang. "Quality Control System for Die Castings Based on Statistic Analysis." Applied Mechanics and Materials 246-247 (December 2012): 918–23. http://dx.doi.org/10.4028/www.scientific.net/amm.246-247.918.

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Die casting technology is applied widely for mass production of non-ferrous metal parts. How to guarantee the quality of die castings is always a concerned topic. A quality control system for die casting machine was developed based on statistical analysis of technology parameters. Firstly the original data is acquired from die casting machine and the technology curves are displayed. Secondly, the technology parameters are identified automatically and a database of technology parameters is established. Thirdly, a statistical analysis based on the database is performed. The statistics parameters

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Gaspar, Stefan, and Ján Pasko. "Analysis of Fracture Process and Common Defects in Casting Alloys EN43100 Manufactured by Die Casting Technology." Advanced Materials Research 1077 (December 2014): 39–43. http://dx.doi.org/10.4028/www.scientific.net/amr.1077.39.

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Recent research in the process of die casting production of aluminium alloys which are nowadays deeply implemented in the rapidly developing automobile, shipping and airline industry aims to increase the manufacture and quality properties of the casting in order to obtain its high mechanical properties at acceptable economic costs. In terms of ensuring the quality indicators in the production of aluminium castings it is necessary to pay close attention to internal structural quality of the castings characterized by type and extent of foundry defects (cavities, Al2O3 particles, internal cold la

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Odilov, Furkat, and Farrukhjon Abdullaev. "Improving The Technology Of Continuous Casting Of Steel Castings." American Journal of Engineering And Techonology 03, no. 04 (2021): 108–17. http://dx.doi.org/10.37547/tajet/volume03issue04-17.

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This article describes the quality and cost-effectiveness of converting steels by melting them in electric arc furnaces. In addition, the technology of continuous casting of cast products in the furnace with the help of ferroalloys, followed by various equipment.

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8

Chechukha, V. I., and M. A. Sadokha. "Defects in castings during high‑pressure casting and measures to prevent their formation." Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY), no. 1 (April 10, 2024): 26–31. http://dx.doi.org/10.21122/1683-6065-2024-1-26-31.

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The article presents a list of defects in castings formed during high‑pressure casting. It has been established that each cause that creates conditions for the formation of specific defects in castings is interconnected with the incorrect setting of specific casting technological parameters. Measures to prevent the formation of defects have been determined depending on the casting technological parameters, operating modes of the mold, application of release lubricant, and alloy preparation. To ensure high quality of produced castings, it is necessary to minimize the influence of the human fact

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Mane, Abhijit M. "Minimization of Casting Defects using SQC Tool." International Journal for Research in Applied Science and Engineering Technology 9, no. 8 (2021): 1627–36. http://dx.doi.org/10.22214/ijraset.2021.37636.

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Abstract: Casting is most widely used manufacturing technique. During casting process, number of defects in the casting takes place. In this research, Statistical Quality Control tool is used to minimize the defects. Paretro analysis technique is used to find out the defects in the castings. Recommendations are implemented in the casting line. Improved quality of casting and reduction of defects are found after the implementation of SQC tool. Keywords: Casting, Defect, Why-Why analysis, Shift, Manifold

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10

Guler, Kerem Altug, and Mustafa Cigdem. "Casting Quality of Gypsum Bonded Block Investment Casting Moulds." Advanced Materials Research 445 (January 2012): 349–54. http://dx.doi.org/10.4028/www.scientific.net/amr.445.349.

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In this study surface finish and dimensional charactersitics of castings produced with gypsum bonded block investment moulds were investigated. Commercial and laboratory made gypsum bonded investment moulds were used for investment casting mould making. To compare the casting quality of the investment powders, wax patterns for surface roughness specimens and linear dimension measurement specimens were designed and produced with special geometry. Wax trees were assembled with these patterns, cylindrical stainless steel perforated flasks were settled around the trees and gypsum bonded investment

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11

Ahmed, Kamal. "Design and Development of LM24 plate Casting using Solid Cast Simulation Technique." International Journal for Research in Applied Science and Engineering Technology 12, no. 5 (2024): 1202–9. http://dx.doi.org/10.22214/ijraset.2024.61786.

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Abstract: This research deals with the elimination of defects in aluminium alloy castings and enhancement in the casting yield and quality. The main intention of the work is to improve the quality of a cast component using Computer Aided Casting Simulation Software. SOLID Cast simulation software is used for simulating the solidification process of casting and visualizing outputs showing possible problematic areas or defects which may occur in the cast product. Plate Castings of aluminium alloy - LM 24 are produced with different designs of gating systems and tested for defects like porosity u

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12

Skorulski, G. "3DP Technology for the Manufacture of Molds for Pressure Casting." Archives of Foundry Engineering 16, no. 3 (2016): 99–102. http://dx.doi.org/10.1515/afe-2016-0058.

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Abstract The paper presents the use of rapid prototyping technology of three dimensional printing (3DP) to make a prototype shell casting mold. In the first step, for identification purposes, a mold was prepared to enable different alloys to be cast. All molds being cast were designed in a universal CAD environment and printed with the zp151 composite material (Calcium sulfate hemihydrate) with a zb63 binder (2-pyrrolidone). It is designated to be used to prepare colourful models presenting prototypes or casting models and molds. The usefulness of 3DP technology for use with copper alloys, alu

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13

Dong, Yi, Xiao Ming Fan, and Bin Liu. "Numerical Simulation and Technology Optimization of Rear Oil Seal Bearing Die Castings Based on ProCAST." Advanced Materials Research 189-193 (February 2011): 4008–13. http://dx.doi.org/10.4028/www.scientific.net/amr.189-193.4008.

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In production,the Φ105 mm hole of rear oil seal bearing die castings often appear porosity, shrinkage and other defects , resulting in the parts to scrap. The existing gating system design of rear oil seal bearing die castings was improved , and the flow and temperature field of the two programs that before and after improvement were analyzed by ProCAST software. The simulation results predicted the casting defects, and the conclusion was consistent with the production. By using the improved process optimization, the rejection rate of die castings can be reduced effectively. Die casting is a c

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14

Dybowski, B., A. Kiełbus, and R. Jarosz. "Mould Components Impact on Structure and Quality of Elektron 21 Alloy." Archives of Foundry Engineering 13, no. 2 (2013): 17–23. http://dx.doi.org/10.2478/afe-2013-0029.

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Abstract Magnesium alloys due to their low density and high strength-to-weight ratio are promising material for the automotive and aerospace industries. Many elements made from magnesium alloys are produced by means of sand casting. It is essential to investigate impact of the applied mould components on the microstructure and the quality of the castings. For the research, six identical, 100x50x20mm plates has been sand cast from the Elektron 21 magnesium casting alloy. Each casting was fed and cooled in a different way: one, surrounded by mould sand, two with cast iron chills 20mm and 40mm th

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15

Shopina, E., and M. Markova. "KASLI ART CASTING TECHNOLOGY." Technical Aesthetics and Design Research 2, no. 2 (2020): 29–36. http://dx.doi.org/10.34031/2687-0878-2020-2-2-29-36.

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The Kasli art casting technology is characterized by its uniqueness; the products are distinguished by precision of execution and uniqueness of style. The Kasli Casting Plant occupies a well-deserved first place in Russia in terms of quality and quantity of products. The object of the research is the features of each of the stages when creating of Kasli castings, as well as the distinctive features of the art casting technology. As a result of the study, the conclusion was formulated that the historical role of Kasli art casting is its influence on the decorative and applied art of Russia. Acc

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16

Demin, Dmitriy, and Liliia Frolova. "Construction of a logical-probabilistic model of casting quality formation for managing technological operations in foundry production." EUREKA: Physics and Engineering, no. 6 (November 28, 2024): 104–18. http://dx.doi.org/10.21303/2461-4262.2024.003518.

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The object of the study is the quality of castings manufactured in disposable sand molds. The problem associated with the limitations of existing studies focusing only on individual components in assessing the quality of castings was solved. This imposes restrictions on the use of the results of such studies in the context of quality management of finished castings in industrial production. The hypothesis of the study assumed that it is possible to build a model of casting quality formation, on the basis of which technological operations that form casting defects can be identified, and a choic

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17

Chechukha, V. I., and M. A. Sadokha. "Defects in high‑pressure die casting and measures to prevent gas defects." Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY), no. 4 (December 15, 2023): 16–24. http://dx.doi.org/10.21122/1683-6065-2023-4-16-24.

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The formation of defects in the manufacturing of castings is influenced by numerous factors. These factors can affect the quality both individually and in combination. This article provides a characterization of the defects encountered in high‑pressure die casting and identifies the factors influencing their formation. Effective measures are examined to reduce casting defects, which are recommended for obtaining critical and highly demanding castings with stringent surface requirements after mechanical processing.The use of automated high‑pressure die casting complexes in production has a posi

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18

Midson, Stephen. "Industrial Applications for Aluminum Semi-Solid Castings." Solid State Phenomena 217-218 (September 2014): 487–95. http://dx.doi.org/10.4028/www.scientific.net/ssp.217-218.487.

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The goal of this paper is to examine industrial applications for semi-solid castings, and to develop strategies necessary for the wider commercialization of the semi-solid casting process. The performance and production techniques of semi-solid castings are reviewed, with the goal of identifying commercial niches where semi-solid castings can provide clear benefits over other casting process. A comparison of mechanical properties between semi-solid castings and other casting processes is presented. In addition, this paper provides an evaluation of the features of the optimal semi-solid casting

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19

Chen, Yi, Gang Yang, Yi Yang, Kang Sheng Wang, and Chen Guang Lu. "Casting Process and Simulation of K19 Cylinder Block." Applied Mechanics and Materials 602-605 (August 2014): 311–15. http://dx.doi.org/10.4028/www.scientific.net/amm.602-605.311.

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Cylinder blocks are the most important parts of engine, and their qualities will fundamentally determine the efficiency of engine. In this work, the casting process of K19 engine cylinder block was studied. A casting process was designed and assessed by the numerical software MAGMA to produce cylinder block castings. An actual experiment of casting was carried out and the mechanical properties of the casting were examined. The simulation results show the liquid metal smoothly fills the casting mold and no shrinkage cavity and porosity are formed in the castings. The cylinder block produced by

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20

Brzeziński, Marcin, Jakub Wiśniowski, Mariusz Łucarz, Karolina Kaczmarska, Alena Pribulová, and Peter Futáš. "Prediction of the Stability of the Casting Process by the HPDC Method on the Basis of Knowledge Obtained by Data Mining Techniques." Materials 17, no. 23 (2024): 5935. https://doi.org/10.3390/ma17235935.

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High-pressure die casting (HPDC) of aluminum alloys is one of the most efficient manufacturing methods, offering high repeatability and the ability to produce highly complex castings. The cast parts are characterized by good surface quality, high dimensional accuracy, and high tensile strength. Continuous technological advancements are driving the increase in part complexity and quality requirements. Numerous parameters impact the quality of a casting in the HPDC process. The most commonly controlled parameters include plunger velocity in the first and second phases, switching point, and inten

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21

Nadolski, M., Z. Konopka, M. Łągiewka, and A. Zyska. "The Influence of the Mould Filling Conditions on the Quality of Castings Made of EN AC-44000 Alloy." Archives of Foundry Engineering 14, no. 2 (2014): 19–22. http://dx.doi.org/10.2478/afe-2014-0029.

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Abstract The work deals with the influence of change in the filling conditions of the ceramic moulds with plaster binder on the presence of gaseous porosity and the microstructure of the achieved test castings with graded wall thickness. Castings made of EN AC-44000 alloy, produced either by gravity casting, or by gravity casting with negative pressure generated around the mould (according to the Vacumetal technology), or by counter-gravity casting were compared. The results of examinations concerning the density of the produced castings indicate that no significant change in porosity was foun

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22

Visik, E. M., L. I. Rassokhina, A. B. Echin, and M. V. Gamazina. "Some aspects of improving the quality of GTE cast turbine blades of nickel superalloys." Voprosy Materialovedeniya, no. 4(108) (January 31, 2022): 82–98. http://dx.doi.org/10.22349/1994-6716-2021-108-4-82-98.

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The results of the development of casting technology for single-crystal high-pressure turbine blades from nickel superalloys with a crystallographic orientation (CGO) [001] were obtained on an automated casting unit for directional crystallization UVNK-9A, at machine-building enterprise. The construction of the casting blades blocks, technologies for the manufacture of molds, rods and casting of GTE working blades of heatresistant nickel alloys with a single-crystal structure and set-up CGO have been developed under real production conditions on UVNK-9A units substituting through-type furnaces

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23

Chang, Qing Ming, Yin Kai Yang, Jing Yuan, and Xia Chen. "Numerical Simulation of Mold Filling and Solidification Behavior in Permanente Casting Process." Applied Mechanics and Materials 313-314 (March 2013): 179–83. http://dx.doi.org/10.4028/www.scientific.net/amm.313-314.179.

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Melt flow and casting solidification are essential parts of the permanent mold casting process and affect significantly the quality of castings．For this reason, accurate prediction of mold filling pattern and temperature field in permanent mold castings plays on an important role in producing sound castings. In this paper, the model filling and solidification of a box casting produced from an aluminum alloy is studied. Different casting processes are employed, simulated and optimized to obtain sound castings. Simulation results reveal that with appropriate gating system, pouring rate, cooling

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Xu, Shao Yong, Si Yuan Long, and Fen Ge Li. "A Novel Squeeze Casting Process for Producing Magnesium Wheels." Materials Science Forum 546-549 (May 2007): 113–18. http://dx.doi.org/10.4028/www.scientific.net/msf.546-549.113.

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This paper analyzes the casting process characteristics of Mg alloys compared with Al alloys in the production of high quality (i.e. structural) structural vehicle components. The disadvantages of traditional squeeze casting for high quality Mg components has led the authors to develop a novel squeeze casting process which overcomes the drawbacks of the current methods. The details of the new process are presented here and show the increased productivity and quality of castings that can result from changing the way molten metal is handled and processed. The feasibility of this new squeeze cast

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Aliyev, Elman. "NATIONAL ECONOMIC SIGNIFICANCE UNDER THE CONDITIONS OF THE ECONOMY OF KNOWLEDGE OF CASTING PRODUCTION AND THE KEY DIRECTIONS OF ITS DEVELOPMENT." ETM - Equipment, Technologies, Materials 05, no. 01 (2021): 16–20. http://dx.doi.org/10.36962/etm0501202016.

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The modern economy is increasingly based on knowledge and, more broadly, on intangible assets that ensure sustainable innovation growth. The formation of an innovative type of knowledge economy can be considered one of the fundamental development trends at the global level. The modernization of the economy in the lifetime period means the introduction of modern technologies, increasing energy efficiency and labor productivity, producing high-quality products according to the most advanced standards. Ultimately, this is the creation of a competitive economy. Keywords: Casting, billet, castings,

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Jaworski, J., R. Kluz, and T. Trzepieciński. "Research on Accuracy of Automatic System for Casting Measuring." Archives of Foundry Engineering 16, no. 3 (2016): 49–54. http://dx.doi.org/10.1515/afe-2016-0048.

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Abstract Ensuring the required quality of castings is an important part of the production process. The quality control should be carried out in a fast and accurate way. These requirements can be met by the use of an optical measuring system installed on the arm of an industrial robot. In the article a methodology for assessing the quality of robotic measurement system to control certain feature of the casting, based on the analysis of repeatability and reproducibility is presented. It was shown that industrial robots equipped with optical measuring systems have the accuracy allowing their use

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Tjiroso, Bambang, Kifli Umar, Sandi Rais, Sahdar Rajak, and Zulfikram -. "Pengaruh Suhu Penuangan Terhadap Kualitas Dan Cacat Coran Aluminium Bekas Kaleng Minuman Dengan Metode Lost Foam Casting." Journal Of Science and Engineering 7, no. 2 (2024): 113–17. https://doi.org/10.33387/josae.v7i2.9322.

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The purpose of this study is to determine the effect of pouring temperature on defect quality in aluminum castings for beverage cans, using the Lost Foam Casting method. The results indicate that pouring temperature significantly influences casting quality. Higher pouring temperatures improve casting quality by increasing fluidity, allowing the molten metal to better fill the mold cavities. Conversely, lower pouring temperatures reduce the aluminum's flowability. Observed defects primarily include cavities or small holes ranging in size from approximately 0.28000 µm to 0.6843 µm, suggesting po

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Bricin, David, Josef Odehnal, Antonín Kříž, and Zbyněk Špirit. "Analysis of Defects Associated with Manufacturing Keys for Brass Musical Instruments." Defect and Diffusion Forum 417 (June 28, 2022): 95–100. http://dx.doi.org/10.4028/p-0ttv30.

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This article deals with the problematics of the production of small castings using gravitational investment casting. These are castings with a relatively complex shape, which are used as parts of trigger assembly for musical wind instruments. During their production, various defects occur which are connected with the casting process. The aim of this article is to describe the defects and suggest possible methods for removing them. The first step was to find and identify these defects using metallographic and EDX microanalysis. Furthermore, a simulation calculation of the casting process was us

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Mincu, Valentin, Malin Negru, and Nicolae Constantin. "Increase the Ingots Quality Cast in Vacuum." Solid State Phenomena 188 (May 2012): 339–45. http://dx.doi.org/10.4028/www.scientific.net/ssp.188.339.

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Most often, product quality is based on purity and homogeneity. To meet these conditions secondary metallurgy was developed including different methods for steel refining, but more important is the choice method of casting and its components. Casting metal melts is one of the key points that can ensure the desired product quality. Depending on the castings complexity, to obtain a high quality material several methods of casting have been developed. One of the most common methods of pouring large ingots is vacuum casting because the metal bath is protected from reoxidation. Another advantage of

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Rasgado, M. T. Alonso, and K. Davey. "An Experimental Investigation on the Effect of Vibration on Casting Surface Finish." Journal of Manufacturing Science and Engineering 124, no. 2 (2002): 435–43. http://dx.doi.org/10.1115/1.1459085.

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One of the failings of the pressure die casting process is that variable surface quality is a common result. This paper provides evidence that die vibration can be used to polish castings as they form during solidification. Evidence is obtained from experiments performed on a purpose built rig that is designed to be representative of the pressure die casting process. The rig’s design is such that part of the casting face can be subjected to tangential vibration at prespecified frequencies and amplitudes. The castings made are viewed under a microscope and micrographs produced. These combined w

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Gavariev, Renat V., and Ksenia N. Gavarieva. "Features of Casting Magnesium Alloys in Chill Mold." Materials Science Forum 1052 (February 3, 2022): 287–91. http://dx.doi.org/10.4028/p-679e24.

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The article describes the features of the casting process in the chill mold of magnesium alloys. The main factors affecting the quality of the castings obtained are indicated. The main defects of magnesium castings obtained by chill mold casting, as well as possible ways to eliminate them, are revealed. Options for improving the efficiency of the casting process by optimizing the process parameters are proposed, as well as options for heat treatment that increase the physical and mechanical properties of ready-made castings are presented.

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Czaplewski, Sarah, Joe Doman, and Joe Kuczynski. "A New Method for Non-Destructive Characterization of Through Holes in Printed Circuit Boards." International Symposium on Microelectronics 2018, no. 1 (2018): 000589–95. http://dx.doi.org/10.4071/2380-4505-2018.1.000589.

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Abstract Plated through hole (PTH) quality, including plating roughness, is a critical factor in the manufacture of reliable printed circuit boards (PCBs). Currently, cross-sectioning is most commonly used to assess PTH roughness but sectioning is a destructive process and offers a limited view of the PTH. Therefore, a non-destructive casting method using a silicone elastomer was developed to evaluate PTH roughness. Castings were successfully created from PTHs with aspect ratios as high as 22:1 and the castings accurately replicated the microtopography of the plating. Laser scanning microscopy

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Semanco, Pavol, Marcel Fedák, Miroslav Rimár, Peter Skok, and Emil Ragan. "Equation Model of the Cooling Process in High Pressure Die-Casting Technology." Advanced Materials Research 505 (April 2012): 165–69. http://dx.doi.org/10.4028/www.scientific.net/amr.505.165.

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In the die-casting technology there is very necessary to determine cooling process of castings in metallic mold especially in the case of castings with great weight to achieve quality surface and properties of the casting without any defects. To regulate cooling in the time course, it is desirable to develop equation of regulation system that determining mold temperature dependence on casting temperature. In the paper we proposed model of regulatory system in the cooling process of casting in a mold that is based on an analysis of amplitude, phase and transition characteristics. The result is

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Kulikov, Vitaliy, Akzhan Kordasheva, Svetlana Kvon, Aristotel Issagulov, and Pavel Kovalev. "INVESTIGATION OF THE EFFECT OF INOCULATORS ON THE STRUCTURE OF CAST STEEL BLANKS." Acta Metallurgica Slovaca 30, no. 4 (2024): 152–55. https://doi.org/10.36547/ams.30.4.2077.

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Despite the active development of modern methods of producing parts, the production of parts by casting remains one of the most common and economically profitable. At the same time, modern production places high demands on the quality of cast parts. It is possible to ensure high quality of castings by forming a homogeneous dense structure of the ingot (casting). In turn, these indicators can be achieved by regulating the rate of solidification of the casting and the distribution of alloying elements inside it throughout the volume. One of the promising ways to control the casting structure is

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Vaibhav Maniar. "Optimized Design of Ductile Iron Valve Body Casting for Defect Minimization and Quality Enhancement." Journal of Information Systems Engineering and Management 10, no. 4 (2025): 1442–72. https://doi.org/10.52783/jisem.v10i4.10852.

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Ensuring the production of superior castings devoid of foundry flaws while minimizing costs is a perpetual concern for foundries. Enhancing and refining manufacturing procedures are essential to attaining this objective. Computer simulation of foundry operations presents a contemporary substitute for costly and labour-intensive investigations in actual foundries, providing a reliable representation of casting. An in-depth investigation of the casting simulation outcomes enables the anticipation of several hazards that may lead to faults in castings, thereby diminishing their quality and, impor

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Bulling, Florian, Ulrich E. Klotz, Alexander Heiss, Lisa Freitag, Christina Faßauer, and Christos G. Aneziris. "Towards High-Quality Investment Casting of Ti-6Al-4V with Novel Calcium Zirconate Crucibles and Optimized Process Control." Metals 14, no. 11 (2024): 1222. http://dx.doi.org/10.3390/met14111222.

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The investment casting of titanium and its alloys relies on a high resistance of the crucibles and shell molds in terms of temperature and reactivity. The availability of ceramic crucibles that offer sufficient resistance to the titanium melt enables vacuum induction melting (VIM). CaZrO3 prepared from a mixture of CaO and ZrO2 as a raw material for refractory ceramics shows a high corrosion resistance against metallic melts even under very high temperatures up to 1800 °C. Crucibles and shell molds of CaZrO3 were successfully produced and used in subsequent casting trials. This study is focuse

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Gaspar, Stefan, Jan Pasko, and Slavko Pavlenko. "Research on the Impact of Increase Pressure on the Homogeneity of the Cast in Die Casting Technology." Advanced Materials Research 1091 (February 2015): 77–82. http://dx.doi.org/10.4028/www.scientific.net/amr.1091.77.

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The production of die castings cast into a metal mold has in recent years achieved an expansive growth in the volume as well as the range of production and that is particularly in aviation and automobile industry. In the process of die casting the final quality of a cast is influenced by a great number of factors. The main factors of die casting are: pressing velocity, increase pressure, the melt temperature and the mold temperature. A primary criterion for achieving reliability, efficiency and quality of production is to ensure minimization of the castings defects occurrence in castings corre

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Gaspar, Stefan, and Jan Pasko. "Homogeneity of Aluminum Castings and Dependency on Increasing Pressure." Key Engineering Materials 669 (October 2015): 134–41. http://dx.doi.org/10.4028/www.scientific.net/kem.669.134.

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The production of die castings cast into a metal mold has in recent years achieved an expansive growth in the volume as well as the range of production and that is particularly in aviation and automobile industry. In the process of die casting the final quality of a cast is influenced by a great number of factors. The main factors of die casting are: pressing velocity, increase pressure, the melt temperature and the mold temperature. A primary criterion for achieving reliability, efficiency and quality of production is to ensure minimization of the castings defects occurrence in castings corre

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39

Soundharya, T., and N. V. Dhandapani. "Reduction of cost in castings by the method of radiographic test." International Journal of Engineering & Technology 7, no. 2.8 (2018): 320. http://dx.doi.org/10.14419/ijet.v7i2.8.10433.

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Foundry in developing nations endures from low quality and low output due to the incidence of defects that may occupy single or multiple causes. Hence casting is a process of uncertainty. It is not an easy task, since casting is a complex process and has connections among various process and operations. Casting defects can negatively impact the bottom line of a foundry. Here an attempt is made cost cutback of castings in radiographic test. There are many defects which can be identified through radiographic test and these defects are reduced or remedied by means of welding. This study focuses a

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Majernik, Jan, Stefan Gaspar, Jan Kmec, Monika Karkova, and Jozef Mascenik. "Possibility of Utilization of Gate Geometry to Modify the Mechanical and Structural Properties of Castings on the Al-Si Basis." Materials 13, no. 16 (2020): 3539. http://dx.doi.org/10.3390/ma13163539.

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The mechanical properties of die castings correlate with the inner structure of a casting, distribution of the eutectic phases, and with the content and distribution of porous cavities in the casting volume. This submitted paper deals with the issue of the possibility to influence the basic parameters affecting the quality of castings through structural modifications of the gating system. The structural parameter under assessment is the gate height. In the case of the diverse height of the gate, five sets of castings were produced. The individual sets of castings were subjected to examination

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RUZBARSKY, JURAJ. "INFLUENCE OF DIE CASTING SPEED ON PROPERTIES OF CASTING BASED ON AL-SI ALLOYS." MM Science Journal 2022, no. 4 (2022): 6114–22. http://dx.doi.org/10.17973/mmsj.2022_11_2022012.

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The paper focuses on the research of the influence of chosen technological parameters of die casting on the selected mechanical properties of castings based on Al-Si alloys. The experiments conducted within the frame of the practical part examined the plunger pressing speed in the mould cavity influencing the mechanical properties of a casting which were represented by ultimate tensile strength and percentage share of porosity of Al-Si castings. Plunger pressing speed is closely related to mould cavity filling mode which affected the final porosity of casting. In the case of increased percenta

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Sadokha, M. A. "Technological features of piston casting." Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY), no. 4 (December 16, 2020): 64–67. http://dx.doi.org/10.21122/1683-6065-2020-4-64-67.

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The results of studies of obtaining complex castings from aluminum alloys using the self-filling method are presented. The influence of a number of technological parameters (pouring time, chill cooling mode, the use of self-filling, etc.) on the quality of the resulting piston castings has been studied. The optimal time for filling the chill mold was determined when casting pistons. It is shown that the chill mold cooling mode has a significant impact on the quality of castings.

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Trytek, A., A. W. Orłowicz, M. Tupaj, et al. "The Effect of a Thin-Wall Casting Mould Cavity Filling Conditions on the Casting Surface Quality." Archives of Foundry Engineering 16, no. 4 (2016): 222–26. http://dx.doi.org/10.1515/afe-2016-0113.

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Abstract The paper presents results of metallographic examination of faults occurring in the course of founding thin-walled cast-iron castings in furan resin sand molds. A non-conformance of the scab type was Observed on surface of the casting as well as sand buckles and cold shots. Studied the chemical composition by means of a scanning electron microscope in a region of casting defects: microanalysis point and microanalysis surface. Around the observed defects discloses high concentration of oxides of iron, manganese and silicon. A computer simulation of the casting process has been carried

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Nadolski, M., Z. Konopka, M. Łągiewka, and A. Zyska. "The Influence of the Method of Mould Filling on the Quality of Castings Made of EN AC-44000 or EN AC-46200 Alloy." Archives of Foundry Engineering 14, no. 4 (2014): 73–76. http://dx.doi.org/10.2478/afe-2014-0089.

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Abstract The performed examinations concerning the process of filling the plaster ceramic moulds with aluminium alloys allowed to assess the influence of various methods of introducing the metal into the mould cavity on the macro- and microstructure of the obtained experimental castings. The comparison was performed for castings with graded wall thickness made either of EN AC-44000 alloy or of EN AC-46000 alloy, produced either by gravity casting, or by gravity casting with negative pressure generated around the mould (according to the Vacumetal technology), or by counter-gravity casting. It w

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Pałyga, Ł., M. Stachowicz, and K. Granat. "Effect of Selected Parameters of Pressure Die Casting on Quality of AlSi9Cu3 Castings." Archives of Foundry Engineering 15, no. 2 (2015): 85–90. http://dx.doi.org/10.1515/afe-2015-0044.

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Abstract This paper presents the results on the effects of die-casting process on the strength parameters of castings of the aluminium AlSi9Cu3 alloy belonging to the group of EN AB-46000, made on renovated high pressure die-casting machine. Specimens for quality testing were taken from the places of the casting most loaded during the service. The aim of a research was to prove how the new die-casting process control capabilities influence on the tensile strength of the cast material defined as a value of the breaking force of the specimens. It has been found that it is possible to specify a s

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Jia, Zhi Xin, Ning Bo Hu, Ji Qiang Li, Li Jun Liu, and Li Qiong Chen. "Die-Casting Die Design Based on the Application of CAE Simulation." Applied Mechanics and Materials 201-202 (October 2012): 541–44. http://dx.doi.org/10.4028/www.scientific.net/amm.201-202.541.

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High pressure die casting is a high volume component manufacturing process which is used extensively in many aspects. There are many factors affecting the quality of die-casting die. In this paper, the CAE simulations of filling and solidification processes for die-casting are studied. Numerical analyses are presented for two practical die-casting parts using HZ CAE software. The temperature distributions and filling states in solidification and filling process are presented. Then the deficiencies of the part are predicted. Based on the analyzing results, the structures of the two dies are opt

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Sun, Junhao. "Casting process design of high pressure and heat resistant steam chamber casting." Highlights in Science, Engineering and Technology 62 (July 27, 2023): 156–63. http://dx.doi.org/10.54097/hset.v62i.10438.

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This paper is about the casting process of high pressure and heat resistant steam chamber casting. The castings are made of ZG15Cr2Mo1. The internal and external quality requirements of the casting are demanding. There are many grade 0 and grade 1 defect areas in castings, which requires that these positions should not have shrinkage cavity and porosity and other defects.This casting scheme includes the design scheme of modeling, modeling material selection, coating selection, parting surface and casting system establishment, process parameters establishment, sand core design, casting riser de

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Jelínek, P., and E. Adámková. "Lost Cores for High-Pressure Die Casting." Archives of Foundry Engineering 14, no. 2 (2014): 101–4. http://dx.doi.org/10.2478/afe-2014-0045.

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Abstract Development of salt cores prepared by high-pressure squeezing and shooting with inorganic binders has shown a high potential of the given technology even for high-pressure casting of castings. Strength, surface quality of achieved castings, and solubility in water become a decisive criterion. The shape and quality of grain surface particularly of NaCl - cooking salts that can be well applied without anticaking additives has shown to be an important criterion. Thus the salt cores technology can cover increasingly growing demands for casting complexity especially for the automobile indu

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Lu, Hong Xing, Qiang Zhu, You Feng He, Da Quan Li, and Stephen P. Midson. "Effect of Casting Size on Microstructure and Mechanical Properties of Thixocastings." Solid State Phenomena 217-218 (September 2014): 45–52. http://dx.doi.org/10.4028/www.scientific.net/ssp.217-218.45.

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A general rule in conventional liquid metal casting processes is that smaller size would produce better metallurgical quality and mechanical properties. The conclusion that semi-solid thixocasting process doesnt follow this rule has been made recently. The microstructure and mechanical properties of semi-solid thixocastings are much less dependent on casting size and cooling rate than the liquid castings. The step casting in the previous study is specially designed and simplified. The practical castings, e.g. turbocharger impellers, are more complex than the step castings. In this work, the tu

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Łągiewka, M., Z. Konopka, M. Nadolski, and A. Zyska. "The Effect of Vacuum Assistance on the Quality of Castings Produced by High Pressure Die Casting Method." Archives of Foundry Engineering 14, no. 2 (2014): 23–26. http://dx.doi.org/10.2478/afe-2014-0030.

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Abstract The presented work is aimed to deal with the influence of changes in the value of negative (relative) pressure maintained in the die cavity of pressure die casting machine on the surface quality of pressure castings. The examinations were held by means of the modified Vertacast pressure die casting machine equipped with a vacuum system. Castings were produced for the parameters selected on the basis of previous experiments, i.e. for the plunger velocity in the second stage of injection at the level of 4 m/s, the pouring temperature of the alloy equal to 640°C, and the die temperature

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