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Journal articles on the topic 'Centrifugal Casting'

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Published: 4 June 2021

Last updated: 12 June 2025

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Chirita, G., I. Stefanescu, Delfim Soares, and F. S. Silva. "Effect of Gravity/ Vibration/ Centrifugal Process on Mechanical Properties of an Al-Si Alloy." Materials Science Forum 587-588 (June 2008): 395–99. http://dx.doi.org/10.4028/www.scientific.net/msf.587-588.395.

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On this paper, a study that evaluates the influence of some variables on the mechanical properties of the vertical centrifugal casting is made. It is emphasized the fact that the centrifugal effect from vertical centrifugal casting brings special features on mechanical properties. It has been observed that the centrifugal effect may substantially increase, in some alloys, the rupture strength, rupture strain, and Young modulus, as compared to the gravity casting technique. When compared to gravity casting, the centrifugal casting process, besides the centrifugal force (pressure effect), always has an inherent associated vibration during the casting. In this study, as an attempt to isolate the vibration effect from the overall centrifugal effect, tests on castings obtained by vibrating gravity casting process are made. A comparison between castings obtained by centrifugal casting technique, vibrating casting technique and gravity casting technique is made in order to fully understand the features that allow the improvement on mechanical properties during the vertical centrifugal casting technique. An analysis of the most important effects, on both mechanical properties and on some metallurgical features is made.

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Shao, Heng, Yan Li, Peng Zhao, Hai Nan, and Qing Yan Xu. "Numerical Simulation of Centrifugal Casting Process of Large Thin-Wall Ti Alloy Casting." Materials Science Forum 850 (March 2016): 469–81. http://dx.doi.org/10.4028/www.scientific.net/msf.850.469.

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Centrifugal pouring is often used in investment casting of large thin-wall Ti castings to promote filling. Shrinkage defects often appear in a Ti casting produced by centrifugal casting. Numerical simulation indicate that shrinkage is caused by these reasons: improper pouring system and thin-wall structure limited feeding of liquid metal from pouring system, and centrifugal force enlarged the shrinkage defects by strengthen feeding of liquid within the casting. Thus centrifugal casting is replaced by gravity casting and a new pouring system is adopted. Obvious shrinkage defects disappear in the new casting process.

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Mäsiar, H., L. Repka, P. Lipták, and O. Híreš. "Investigate the Possibility of Tekcast Methods Used for Casting Polymeric Resin Materials." Archives of Foundry Engineering 14, no. 2 (2014): 119–22. http://dx.doi.org/10.2478/afe-2014-0049.

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Abstract Contribution gives an overview of knowledge about the method of centrifugal casting with orientate on Tekcast system. Company Tekcast Industries has developed a device for centrifugal casting, extending the area of production of castings or prototyping of metal or plastic. Materials suitable for the centrifugal casting with flexible operating parameters may include non-ferrous metal alloy based on zinc or aluminum or non-metallic materials such as polyester resins, polyurethane resins, epoxy resins, waxes and the like. The casting process is particularly suitable for a wide range of commercial castings and decorative objects.

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Marukovich, E. I., V. A. Kharkov, I. O. Sazonenko, V. A. Kukareko, and A. V. Kushnerov. "Structure, physical and mechanical properties of bronze castings obtained by continuous and centrifugal casting." Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY), no. 2 (June 9, 2020): 26–28. http://dx.doi.org/10.21122/1683-6065-2020-2-26-28.

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The influence of crystallization conditions (continuous and centrifugal casting) of small-sized BrА1Fe4Ni4 bronze castings on the structure, phase composition, and hardness was studied. It was found by metallographic and X-ray diffraction methods that the castings consist of (α + γ')-eutectoid, α phase and AlCu, Al2Cu3 intermetallic compounds. The matrix phase in the alloy, crystallized by centrifugal casting, due to its higher alloying with Al atoms, has an increased value of the crystal lattice parameter, compared with the case of continuous casting. The hardness of the casting obtained by centrifugal casting increases compared with continuous casting, which is due to the formation of a more dispersed structure, as well as a large solid solution hardening of the matrix phase of the casting.

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Mohapatra, Shubhashree, Hrushikesh Sarangi, and Upendra Kumar Mohanty. "Effect of processing factors on the characteristics of centrifugal casting." Manufacturing Review 7 (2020): 26. http://dx.doi.org/10.1051/mfreview/2020024.

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Centrifugal castings are produced by pouring liquid metal into rotating moulds. It solidifies under the influence of centrifugal forces, directed from the center to the periphery of the mould on account of mould rotation, and exhibits directionality in solidification which helps to eliminate voids and discontinuities in the resultant casting, usually encountered in gravity castings. Also, a compositional gradient is sat up in the melt which can be monitored, to produce functionally graded materials (FGMs) of choice with multi-functionality. The pouring rate, pouring temperature, mould temperature, and mould material can be suitably selected and altered in isolation or in combination, to generate a desired thermal gradient in the melt which decides its cooling rate. The cooling rate of the melt has the greatest impact on the grain structure of the casting. On the other hand, the grain structure of the casting governs its mechanical performance and decides the suitability for any specific end-use. Thus, different processing factors influence the characteristics of centrifugal casting. In the present article, a sincere attempt is made to analyze the effect of these factors and to enumerate the role played by each one of these factors in deciding the centrifugal casting characteristics.

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Chethan, K. S., S. Kiran Aithal, A. Madhusudan, and Rao Shailesh. "Investigation of Particle Segregation and Solidification Time in FGM's Using Centrifuge Casting Technique." Applied Mechanics and Materials 766-767 (June 2015): 956–61. http://dx.doi.org/10.4028/www.scientific.net/amm.766-767.956.

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Functionally Graded Materials (FGM) is a newly evolved concept to get desired properties in the material wherein the intermediate layer is transient since the particle size distribution gradually changes. Centrifugal casting [1] can produce only hollow shapes and Centrifuge casting can produce solid shape FGM very effectively. The study of particle distribution in a fluid using centrifuge casting process is carried out considering sand as particle and its distribution is studied under water, for different viscosity values and for viscosity varying with respect to temperature. Based on centrifugal force and density difference, an attempt has been made to mathematically model the centrifuge casting force to estimate the particle distribution over the length of the specimen and also to assess the influence of process parameters such as rotational speed (G-force) and density of the particles.

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Rostamzadeh, Safar, Behzad Niroumand, and Ali Maleki. "A Novel Method for Semi-Solid Casting of Hypereutectic Gray Cast Iron in Expendable Mold." Solid State Phenomena 256 (September 2016): 237–42. http://dx.doi.org/10.4028/www.scientific.net/ssp.256.237.

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In the present research, the possibility of single stage semi-solid casting of a hypereutectic gray cast iron in a sand mold was investigated. For this purpose, a specially designed chilled sprue sand mold rigged to a vertical centrifugal casting machine was used. The molten cast iron was poured in the chilled sprue sand mold at 1275 oC at a rotation speed of 400 rpm. Two control samples were also poured at 1275 oC under gravity and centrifugal casting conditions in the same mold without sprue chilling. Microstructures and mechanical properties of the specimens were then characterized. The results showed that the average length and thickness of the primary solid phase, i.e. the Kish graphite, and those of the eutectic flake graphite were smaller in semi-solid centrifuged castings and their hardness were higher than those of the control samples. The results are discussed in terms of the shearing and chilling effects of the designed sprue during the initial stages of pouring.

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Jayakumar, E., Jibin C. Jacob, T. P. D. Rajan, M. A. Joseph, and B. C. Pai. "Processing and Characterization of Hypoeutectic Functionally Graded Aluminum – SiC Metal Matrix Composites." Materials Science Forum 830-831 (September 2015): 456–59. http://dx.doi.org/10.4028/www.scientific.net/msf.830-831.456.

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The present study describes the processing and characterization of hypoeutectic A319 functionally graded Aluminium metal matrix composite (FGMMC) reinforced with 10 weight percentage SiCp particles of 23 μm size. FGMMC’s are processed by liquid stir casting method followed by vertical centrifugal casting. Metallographic analysis of FGMMC casting reveals the influence of the centrifugal force on the gradation of various phases in the matrix and an increasing gradient distribution of SiC reinforcements gradually from inner towards the outer periphery forming different zones. Tensile and the compressive tests show that the variation in properties are structure sensitive and is confirmed by the dry wear tests. The study clearly depicts the gradient nature in the structure and mechanical properties of the FGM castings produced by centrifugal casting method.

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Lin, Xuedong, Changming Liu, Linxian Che, and Jian Sun. "Study on the preparation technology of centrifugal Al-18Si-X composite reinforced with in situ particles." Journal of Physics: Conference Series 2338, no. 1 (2022): 012014. http://dx.doi.org/10.1088/1742-6596/2338/1/012014.

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Abstract Al-18Si-X (X=Mg, Ti, Ni) composite tubular castings were prepared by centrifugal casting. The microstructure of cylindrical casting of Al-18Si-X composite was observed along the radial direction, and the segregation behavior and distribution characteristics of primary particles formed in different alloys under the action of centrifugal field were studied. The results show that the in situ particles in Al-18Si-7Mg, Al-18Si-7Ti, and Al-18Si-7Ni tubular castings have different segregation behaviors under the action of centrifugal field, which results in the formation of particle reinforcing layers in different regions of the castings. It is found that the volume fraction, size and particle morphology of primary particles in particle reinforcement layer of different castings are different.

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SUN, ZHI, YANWEI SUI, AIHUI LIU, BANGSHENG LI, and JINGJIE GUO. "RESEARCH OF MECHANICAL PROPERTY GRADIENT DISTRIBUTION OF Al-Cu ALLOY IN CENTRIFUGAL CASTING." Surface Review and Letters 18, no. 06 (2011): 297–301. http://dx.doi.org/10.1142/s0218625x11014795.

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Al-Cu alloy castings are obtained using centrifugal casting. The regularity of mechanical property gradient distribution of Al-Cu alloy castings with the same centrifugal radius at different positions is investigated. The result shows that the tensile strength, yield strength, elongation and microscope hardness exhibit the following gradient distribution characteristic — high on both sides and low on the center. The trend of mechanical property gradient distribution of Al-Cu alloy increases with the increase in the rotation speed. Moreover, the mechanical properties of casting centerline two sides have asymmetry. The reason is that the grain size of casting centerline two sides and Al2Cu phase and Cu content change correspondingly.

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Aneesh Kumar, J., K. Krishnakumar, and S. Savithri. "Computer Simulation of Centrifugal Casting Process Using FLOW-3D." Materials Science Forum 830-831 (September 2015): 53–56. http://dx.doi.org/10.4028/www.scientific.net/msf.830-831.53.

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Centrifugal casting process is one of the potential manufacturing techniques used for producing functionally graded materials viz., composite materials or metallic materials which have high differences of density among constituents. In this process, the fluid flow plays a major role and understanding the complex flow process is a must for the production of defect-free castings. Since the mold spins at a high velocity and the mold wall being opaque, it is impossible to visualise the flow patterns in real time. Hence, in the present work, the commercial CFD code FLOW-3DTM, has been used to simulate the mold filling sequence for a simple hollow cylindrical casting during vertical centrifugal casting process. Effect of various spinning velocities on the fill pattern during vertical centrifugal casting process is being investigated.

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Konar, R., and M. Mician. "Ultrasonic Inspection Techniques Possibilities for Centrifugal Cast Copper Alloy." Archives of Foundry Engineering 17, no. 2 (2017): 35–38. http://dx.doi.org/10.1515/afe-2017-0047.

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Abstract The article deals with ultrasonic testing possibilities of the copper alloy centrifugal casts. It focused on the problems that arise when testing of castings is made of non-ferrous materials. Most common types of casting defects is dedicated in theoretical introduction of article. Ultrasonic testing technique by conventional ultrasound system is described in the theoretical part too. Practical ultrasonic testing of centrifugal copper alloy cast - brass is in experimental part. The experimental sample was part of centrifugally cast brass ring with dimensions of Ø1200x34 mm. The influence of microstructure on ultrasonic attenuation and limitations in testing due to attenuation is describes in experimental part. Conventional direct single element contact ultrasound probe with frequencies of 5 MHz, 3.5 MHz and 2 MHz were used for all experimental measurements. The results of experimental part of article are recommendations for selecting equipment and accessories for casting testing made of non-ferrous metals.

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Kusnowo, Roni, and Kus Hanaldi. "Pengaruh Kecepatan Putar Terhadap Hasil Coran pada Metode Pengecoran Sentrifugal dalam Pembuatan Produk Pisau Pakan Ternak dengan Material Ni-Hard1." Manutech : Jurnal Teknologi Manufaktur 11, no. 01 (2019): 1–7. http://dx.doi.org/10.33504/manutech.v11i01.92.

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Animal feed knife is a tool that serves to cut and chop animal feed consisting of grass as the main ingredient with additives such as bran, herbs, centrate, cassava, tofu pulp and others. Therefore, as a cutting tool must have the properties of friction resistance, impact resistance, and have good sharpness, so that the material chosen is Ni-Hard 1. The use of centrifugal casting method was chosen because it has the advantage of being able to make castings with relatively thin thickness this is due to the influence of the centrifugal force on the distribution of metal liquids throughout the cavity in the mold. Case study in this study is the use of centrifugal casting methods as an alternative to gravity casting methods to overcome defects of misruns. This research was conducted to investigate the effect of speed on the formation of castings products. The method that was carried out began with a literature study on centrifugal casting, and continued by determining the material, the temperature of the cast is in the range 1250ºC - 1300ºC, and the type of mold. The next step is to do work drawings, pattern making, mold making, casting processes, fettling processes, and analysis. With variations in speed of 200 rpm, 300 rpm and 400 rpm, it can be seen the optimal speed for making this product. The results of this study obtained optimal speed at a speed of 300 rpm to make good quality of animal feed knife products.

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Kim, Myoung Gyun, Si Young Sung, Gyu Chang Lee, Joon Pyo Park, and Young Jig Kim. "Investment Casting of Near-Net Shape Gamma Titanium Aluminide Automotive Turbocharger Rotor." Materials Science Forum 475-479 (January 2005): 2547–50. http://dx.doi.org/10.4028/www.scientific.net/msf.475-479.2547.

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The objective of this study was to optimize the casting design of gamma titanium aluminde automotive turbocharger rotor by means of the practical experiment and numerical simulation. Gamma titanium aluminide rotors were produced by centrifugal casting methods on a laboratory scale. Based on the metal-mold reaction of gamma titanium aluminide, the investment molds were manufactured by an electro-fused Al2O3 mold. The experimental results showed that the castings failed to reach the end of the cavities due to insufficient centrifugal force and a lower fluidity compared to the other metals. Although the satisfactory results were not obtained in the numerical simulation, it was concluded that numerical simulation aided to achieve understanding of the casting process and defect formation in gamma titanium aluminide turbocharger rotor castings.

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Arsha, A. G., E. Jayakumar, T. P. D. Rajan, and Ballembettu Chandrasekhar Pai. "Processing and Characterization of Functionally Graded In Situ Aluminum Composite." Materials Science Forum 830-831 (September 2015): 485–88. http://dx.doi.org/10.4028/www.scientific.net/msf.830-831.485.

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A390 functionally graded material (FGM) pistons were fabricated by centrifugal casting, where the silicon particles were segregated in the head portion of the pistons by appropriate design and their density differences. Centrifugal casting offers casting of cylindrical structures with gradation in its properties. In centrifugally cast A390, a suitable die design can lead to the formation of hard primary Si particles gradually distributed towards the head region producing a particle rich zone, transition zone and matrix rich zone. Microstructure and chemical composition analysis confirms the composition gradation. Hardness and wear test results revealed that the gradation positively helps to improve the desired properties with the presence of in-situ primary silicon reinforcements.

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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, method of making castings, injection molding, centrifugal casting, investment casting, shell casting, chill casting.

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Esaka, Hisao, Jun-Nichi Hiramoto, Shota Miyahara, and Kei Shinozuka. "In Situ Observation of Solidification in Horizontal Centrifugal Casting Process." Materials Science Forum 649 (May 2010): 325–30. http://dx.doi.org/10.4028/www.scientific.net/msf.649.325.

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Horizontal centrifugal casting is widely used for production of water pipes, rolls and so on. Advantage of this process is to press molten metal against the permanent mold due to centrifugal force. Thanks to this, one can obtain fine structure and sound castings1). On the other hand, macroscopic segregation on tangential direction sometimes forms. The formation mechanism of macroscopic segregation has not well understood. This is because the solidification process itself is still uncertain since it is very complex2-4). Thus, in order to understand the solidification process in horizontal centrifugal casting an in-situ observation has been made in this study. Transparent organic substance has been used to simulate the metal solidification.

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Yu, Jing Yuan, and Qiang Li. "Study on Mass Segregation Phenomenon of Al₂O₃Ceramic Slurries during Centrifugal Slip Casting." Advanced Materials Research 490-495 (March 2012): 3584–88. http://dx.doi.org/10.4028/www.scientific.net/amr.490-495.3584.

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Mass segregation of Al2O3 slurries during centrifugal slip casing has important effect on microstructure and mechanical property of sintered Al2O3 ceramic, so the study on effect of centrifugal process parameters on mass segregation of slurries has significant meaning. Al2O3 ceramic slurries with different solid content varying from 30vol% to 50vol% were prepared. The effect of centrifugal time, centrifugal acceleration and solid content of slurries on green density uniformity of Al2O3 ceramic compacts was studied. The microstructure of centrifuged compacts was observed using scanning electron microscopy (SSX-505). The results show with the increase of centrifugal acceleration and solid content of slurries, the mass segregation of Al2O3 particles with different size increases and decreases, respectively. However, centrifugal time has no obvious effect on green density uniformity. SEM observation shows the green compacts have uniform microstructure when centrifuged at 2860g for 2h with 50vol% slurries.

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Kaskani, Mehdi, and Behzad Niroumand. "On Non-Dendritic Microstructure Formation during Sand Casting of A356 Alloy." Solid State Phenomena 192-193 (October 2012): 433–40. http://dx.doi.org/10.4028/www.scientific.net/ssp.192-193.433.

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The purpose of this study was to develop a new method for formation of non-dendritic microstructure during sand casting of aluminum alloys without any previous special processing. For this purpose, sand molds with three different types of running systems were designed. The first design included a traditional reverse tapered vertical sprue. The second design was similar to the first one except for a conical sand core placed inside the lower half portion of the sprue creating a narrow gap for the flow of the melt into the mold. In the third design, the core was fitted with metal chills. Molten A356 alloy was then cast from fully liquid state under gravity and centrifugal casting conditions in the molds and the microstructures of the castings were studied. The results showed that non-dendritic microstructure could be achieved by using the last design under low superheat temperature and centrifugal casting conditions. The findings can pave the way for small quantity production of semisolid castings in expendable molds.

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Arpita. "Simulation of vertical centrifugal casting using ANSYS." International Journal of Science and Research Archive 11, no. 1 (2024): 2290–303. http://dx.doi.org/10.30574/ijsra.2024.11.1.0327.

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Axis-symmetric products are often made by means of centrifugal casting, which involves heating and transferring molten metal into a rapidly rotating mould. Centrifugal casting defects are mostly associated with the solidification process. However, when employing experimental techniques for centrifugal casting, determining the process of solidification pace and duration is quite challenging. Simulations may be used to analyze and optimize operational conditions.

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Qin, Fangcheng, Yongtang Li, and Li Ju. "A Comparative Study of Hot Deformation Behaviors for Sand Casting and Centrifugal Casting Q235B Flange Blanks." High Temperature Materials and Processes 36, no. 3 (2017): 209–21. http://dx.doi.org/10.1515/htmp-2015-0209.

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AbstractHot compression tests of sand casting and centrifugal casting Q235B flange blanks were performed at strain rate range of 0.01–5 s−1 and temperature range of 850–1,150 °C. The evolutions of microstructure and texture were revealed. The constitutive models based on Arrhenius constitutive modeling were proposed by considering the effects of strain on material constants. The results show that recrystallization in centrifugal casting Q235B is more apparent than that in sand casting, resulting in the finer grains and lower flow stress for centrifugal casting Q235B. The intensities of textures slightly weaken with the increase of temperature. At 1,050 °C and 5 s−1, the textures of sand casting are characterized by strong {001}<100> and {001}<110>, which are related with severe deformation, while the textures of centrifugal casting are composed of {110}<110> and {111}<112>, which are related with dynamic recovery and shear deformation. A good agreement between the predicted and experimental flow stress is achieved and demonstrates that the proposed constitutive models are reliable.

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Stradomski, G., M. Nadolski, and Z. Stradomski. "Technological Assessment of the Possibility of Making Light-section Castings of GX2CrNiMoN25-6-3 Cast Steel by the Centrifugal Casting Method." Archives of Foundry Engineering 15, no. 3 (2015): 57–60. http://dx.doi.org/10.1515/afe-2015-0060.

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Abstract The paper presents the results of investigation into the technological possibility of making light-section castings of GX2CrNiMoN25-6-3 cast steel. For making castings with a wall thickness in the thinnest place as small as below 1 mm, the centrifugal casting technology was employed. The technology under consideration enables items with high surface quality to be obtained, while providing a reduced consumption of the charge materials and, as a result, a reduction in the costs of unit casting production.

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Velikov, Angel, Ivanov Ivanov, and Ivan Georgiev. "STRUCTURAL INVESTIGATION OF THE INTERMEDIATE LAYER IN A BIMETAL MILL ROLLER PRODUCED BY THE METHOD OF VERTICAL AXIS CENTRIFUGAL CASTING." ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference 1 (June 16, 2021): 255–58. http://dx.doi.org/10.17770/etr2021vol1.6533.

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Subject of the investigation is a bimetallic mill roller with external, working layer from high chromium material and inner, supporting layer from ductile cast iron. The processes, accompanying the formation of a transition layer in bimetallic castings, produced by centrifugal casting have been investigated. Attention has paid to the structural changes in the transition zone, caused by the diffusion processes occurring during the casting and crystallization.

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Tomaszewski, Henryk, and Helena Węglarz. "Centrifugal Slip Casting of Alumina." Key Engineering Materials 132-136 (April 1997): 370–73. http://dx.doi.org/10.4028/www.scientific.net/kem.132-136.370.

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Girshov, Vladimir Leonidovich. "Centrifugal casting of metal powders." Metalloobrabotka, no. 4 (2019): 53–58. http://dx.doi.org/10.25960/mo.2019.4.53.

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Maarten Biesheuvel, P., Arian Nijmeijer, and Henk Verweij. "Theory of batchwise centrifugal casting." AIChE Journal 44, no. 8 (1998): 1914–22. http://dx.doi.org/10.1002/aic.690440821.

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Prakasita, Erasmus, Yohanes Sardjono, and Budi Setyahandana. "Rockwell Hardness Testing of Pure Nickel Collimators for BNCT Application." ASEAN Journal on Science and Technology for Development 36, no. 1 (2019): 23–27. http://dx.doi.org/10.29037/ajstd.525.

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In this study, Rockwell and Brinell hardness testing was used to examine material hardness. These methods were chosen because they are easy to carry out, relatively inexpensive, and almost all sizes and shapes can be tested, in which nickel hardness before and after centrifugal casting are identified and compared. These tests enable the determination of the hardness numbers of nickel collimators using for boron neutron capture therapy. The samples were five nickel plates with a dimension of 4.5 × 4.5 cm and five collimators. The collimators were cylindrical and made using centrifugal casting. The basic principle of the hardness test was to apply loading on the object being tested. The Rockwell test was used to assess the material's hardness from the difference of indentation depth, while the Brinell test was used to determine the hardness from the diameter of indentation. From the results of this test, the hardness number of nickel before centrifugal casting is 168.53 BHN or 86.13 HRB, while the hardness number after centrifugal casting is 115.68 BHN or 64.84 HRB. It can therefore be concluded that centrifugal casting decreased nickel hardness.

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Tattimani, Mahantesh S., Maheswar C.Y., Babu Reddy, Shrikant Badi, Ambadas, and Anandkumar S. Malipatil. "The effect of rotational speed on quality of sound vertical centrifugal castings tin." Manufacturing Review 8 (2021): 21. http://dx.doi.org/10.1051/mfreview/2021020.

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Centrifugal casting plays a key role in manufacturing processes. In this process, the flow of the molten metal in particular, plays a significant role in defining the quality of final cast tube. The current study is an experimental work that focuses on the effect of fluid flow speeds on the quality of final cast product. The study was conducted using the vertical centrifugal casting with tin as the primary raw material. It is observed from the study that for the given manufacturing conditions, a speed 1050 rpm produced the sound castings. The micrographic studies of these cast products revealed an excellent grain structures. The improvement in the material hardness was also observed.

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Liang, Haicheng, Jianming Kang, Dazhi Zhao, Qichi Le, and Tianze Liu. "Simulation and analysis of AZ80 magnesium alloy centrifugal casting." Journal of Physics: Conference Series 2459, no. 1 (2023): 012049. http://dx.doi.org/10.1088/1742-6596/2459/1/012049.

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Abstract Centrifugal casting magnesium alloy pipe has been widely used. Still, because of its poor mechanical properties, it isn’t to meet the needs of the working environment, which limits its development in civil and industrial fields. Therefore, it is necessary to study the centrifugal casting process of magnesium alloy. In this paper, AZ80 magnesium alloy is used as the research material, and the numerical simulation of the centrifugal casting process is carried out by ANSYS Fluent software. The influence of different variable conditions on the solidification rate is analyzed, and a concept of defect ratio is proposed. The post-processing software is used to write an expression for macroscopic analysis of pore defect ratio on the outer surface of the casting, using which the influence of defect ratio under different variables is given. The research aims to guide the centrifugal casting experiment and predict the defects, greatly saving resources and costs.

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Liu, Tianze, Chunyan Ban, Qichi Le, Dazhi Zhao, and Jianming Kang. "Centrifugal casting simulation and physical field analysis of ZL107." Journal of Physics: Conference Series 2390, no. 1 (2022): 012089. http://dx.doi.org/10.1088/1742-6596/2390/1/012089.

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Abstract Centrifugal casting is one of the commonly used production methods for cylinder liner preparation. Al-Si-Mg centrifugal casting alloys have been extensively studied and applied, but as the matrix material, its mechanical properties still cannot meet the service requirements in a severe working environment with high strength, large load, or high temperature. Therefore, most Al-Si-Mg centrifugal casting alloys can only bear medium and low loads and operate in an environment below 150 °C. It has greatly restricted the development of industrial and civil fields. In this paper, ZL107 alloy was taken as the research object and Fluent 2021R1 simulation software was used to explore the filling characteristics of Al-Si-Cu alloy under centrifugal casting conditions. When the casting temperature was 770 °C, the initial casting temperature was 230 °C, the rotation speed was 1400 rpm and the casting speed was 0.45 m/s, the casting filling and solidification processes were analyzed based on the temperature field and velocity field. The test shows that there are large temperature differences between the outer surface and the inner surface of the casting, axial and radial, which are the parts where defects exist. The approximate area of the defect is estimated, which has a certain guiding role.

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Choi, Won Sik, Mi Jung Sin, Sun Mi Choi, et al. "Manufacturing Process for Bush Type Bearing Metal Using Centrifugal Casting." Advanced Materials Research 941-944 (June 2014): 1904–7. http://dx.doi.org/10.4028/www.scientific.net/amr.941-944.1904.

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This paper regard the development for bush type bear metal using centrifugal casting by changing the rpm, amount of melting metal bush type bearing metal process was fixed also bush type bearing casting is possible by using centrifugal casting machine, bonding test results meet the specification and results of non-destructive testing meet the inspection.

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Aithal, S. Kiran, N. Ramesh Babu, H. N. Manjunath, S. Narendranath, and Vijay Desai. "Development and Characterization of Al-Si-Cu FGM Using Centrifuge Technique." Applied Mechanics and Materials 766-767 (June 2015): 438–42. http://dx.doi.org/10.4028/www.scientific.net/amm.766-767.438.

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In this work Al-Si-Cu Functionally Graded Material (FGM) is developed using centrifuge technique. The method used in this work to produce FGM is totally different compared to other centrifugal process which helped in producing solid cylindrical parts. The FGM is characterized through Microstructure and Hardness and it is found that the Cu segregated at the bottom of the casting and Si at the top due to the density difference. Similarly the hardness and the ultimate tensile strength at the bottom of the casting and at the top of the casting region is more when compared to region in-between the top and bottom of the casting.

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Pivinskii, Yu E., T. I. Litovskaya, O. N. Samarina, and F. S. Kaplan. "Centrifugal casting of ceramics and the properties of the castings." Refractories 33, no. 3-4 (1992): 138–43. http://dx.doi.org/10.1007/bf01283551.

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Zhang, Jun, Jian Xin Zhou, Ming Yuan Zhang, et al. "Numerical Simulation of Filling Process in Vertical Centrifugal Casting Based on Projection-Level Set Method." Advanced Materials Research 314-316 (August 2011): 364–68. http://dx.doi.org/10.4028/www.scientific.net/amr.314-316.364.

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A three-dimensional incompressible two phase flow model of vertical centrifugal casting is proposed to simulate the fluid flow of mould filling process accurately and effectively. The Projection method is adopted to solve the govern equation of the flow field, and the Level Set method is used to capture the free surface. The mold filling of a complex part with thin-wall is simulated. The numerical result shows that the Projection-Level Set method could simulate centrifugal casting effectively. The present study has a guiding significance to the production of vertical centrifugal casting.

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Ren, Shu Bin, Jin Kun Qi, and Xuan Hui Qu. "Microstructures and Properties of Abrasion-Resistant Cobalt-Base Alloy K-C20WN Prepared by Centrifugal Casting." Applied Mechanics and Materials 496-500 (January 2014): 288–91. http://dx.doi.org/10.4028/www.scientific.net/amm.496-500.288.

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The abrasion-resistant cobalt-base alloy K-C20WN was prepared by centrifugal casting and the effects of centrifugal temperature and speed on the microstructures and the performances of the casting were researched. The results showed that the microstructures of the casting consist of the loose equiaxed crystal, the dense equiaxed crystal, and the columnar dendrite from outside to inside. The centrifugal pouring temperature and rotational speed affects the performances apparently. Low temperature and high rotational speed help to enhance comprehensive mechnical performances of the alloys. And the improvement mechanism was also discussed in this paper.

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Lee, Yang-Chang, and Joon-Seong Lee. "Conductivity·Filling Rate Analysis for Die-Casting Centrifugal Casting Machine." Journal of the Korea Academia-Industrial cooperation Society 16, no. 4 (2015): 2364–69. http://dx.doi.org/10.5762/kais.2015.16.4.2364.

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Contatori, Chester, Antônio Augusto Couto, Jan Vatavuk, Arnaldo A. Ciquielo Borges, Nelson Batista de Lima, and Renato Baldan. "Effect of Copper and Magnesium on the Microstructure of Centrifugally Cast Al-19%Si Alloys." Materials Science Forum 930 (September 2018): 484–88. http://dx.doi.org/10.4028/www.scientific.net/msf.930.484.

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Hypereutectic Al-Si alloys can be used in applications that require high wear resistance. Such wear resistance is achieved by the presence of hard primary silicon particles, allied to the formation of Mg2Si intermetallic phase when magnesium is added in this alloy. Centrifugal casting generates a gradient in the microstructure of hypereutectic Al-Si alloys that can favor such applications. Cylindrical components of Al-19%Si alloy containing added copper and magnesium contents were processed by centrifugal casting. The purpose of this study is to investigate the formation and segregation of particles of primary silicon (β) and Mg2Si in Al-19%Si alloy containing additions of copper and magnesium. Because the density of silicon (2.33 g/cm3) and Mg2Si (1.88 g/cm3) is lower than that of aluminum (2.67 g/cm3), centrifugal casting causes primary silicon (β) and Mg2Si particles to concentrate more at the outer wall of the centrifuged pipe. In this study, primary silicon (β) and Mg2Si particles were found to be retained at the outer wall of the pipe. It is believed that the rapid cooling of the molten metal in the region of contact with the mold, whose temperature is lower than that of the molten metal, allied to the centrifugal force, prevented the particles from migrating to the inner wall of the pipe. The microstructure shows a gradient in the distribution of these phases, enabling the production of a functionally graded material. The addition of copper and magnesium leads to the formation of Mg2Si and Al5Cu2Mg8Si6 phases, reducing the amount of primary β phase (Si) particles. In all the evaluated conditions, a tendency is also observed for a gradual increase in the segregation of silicon towards the inner wall along the entire length of the centrifuged pipe.

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Li, Qiang, Jing Yuan Yu, and Xiu Juan Meng. "Study on Preparation and Property of Carbon Fiber/HA Composites by Centrifugal Slip Casting Method." Advanced Materials Research 1058 (November 2014): 180–84. http://dx.doi.org/10.4028/www.scientific.net/amr.1058.180.

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In this paper, centrifugal slip casting method was use to prepare carbon fiber/HA composites using the nanoHA particles and carbon fibers as initial materials. The morphology of the carbon fiber after modification of p-aminobenzoic acid was observed. The rheological characteristic of the carbon fibers/HA slurries was studied. The effects of the centrifugal acceleration on green density uniformity of carbon fiber/HA composites were analyzed. The bending strength and fracture toughness of carbon fiber/HA composites were measured. The results show the roughness of carbon fibers treated by p-aminobenzoic acid increases. At the pH of 10 and 5 wt% dispersant, the HA slurries with 3 vol% carbon fibers have good fluidity. After centrifuged at 2860 G for 30 min, the green compacts of HA composites have high and uniform the green density. After sintered at 1100°C for 1h, compared with carbon fiber/HA composites prepared by dry pressing, the modified carbon fiber/HA composites prepared by centrifugal slip casting have higher bending strength and fracture toughness of 89.4 MPa and 1.92MPa1/2, respectively.

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Marukovich, E. I., V. Yu Stetsenko, and K. N. Baranov. "VERTICAL CENTRIFUGAL CASTING OF A HYPEREUTECTIC SILUMIN WITH COOLING OF THE MOLD AND CASTING." Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY), no. 2 (July 4, 2017): 5–11. http://dx.doi.org/10.21122/1683-6065-2017-2-5-11.

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It is shown that cooling of casting molds by water with water flow of 0,42 m3/h and internal surfaces of castings with thickness of a wall 12–14 mm with water quantity 2,5×10–4–5×10–4 m3 allows to receive procurements with completely modified microstructure without use of modifiers. External layers of the produced castings consist of the eutectic silumin with compact crystals of silicon, and internal layers – of hypereutectic silumin with crystals of high-disperse primary and compact eutectic silicon.

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Liu, Li Gang, Hui Yu, Yu Hui Wang, Yu Dong Yang, Cong Tao Liang, and Qiang Li. "Stress Field Simulation of Compound Cast Rollers during Centrifugal Casting Process." Applied Mechanics and Materials 217-219 (November 2012): 1740–47. http://dx.doi.org/10.4028/www.scientific.net/amm.217-219.1740.

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The stress field of compound cast rollers during centrifugal casting process was investigated in this work. A finite element (FE) model was built to simulate the internal stress fields during cooling process, in which phase transformation was considered. The mechanical parameters employed in stress numerical simulation were measured by using thermal/mechanical simulator. The residual internal stress of the compound cast roller by centrifugal casting method was measured by using X-ray stress analyzer. The simulated results are in agreement with the measured ones very well. According to this model, the temperature and stress fields of the compound cast roller during centrifugal casting process were simulated.

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Wu, Shi Ping, Qin Xu, and Xiang Xue. "The Solidified Structure and Macrosegregation of Wedge-Shaped Titanium Castings Produced by Vertical Centrifugal Casting Process." Advanced Materials Research 317-319 (August 2011): 456–59. http://dx.doi.org/10.4028/www.scientific.net/amr.317-319.456.

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The present paper studied the as-cast structure and macrosegregation of the wedge-shaped castings produced vertical centrifugal casting process at different mould rotating speeds. The element distributions were determined by the secondary electron line scanning in the S-570SEM type scanning electron microscope (SEM) and the grain sizes of the castings were observed by the optical stereoscope. The research results show that the grain sizes increase with increasing of casting wall-thickness, but decrease with increasing of the mold rotational speed. The cooling rate is high and rotational speed is not high enough, therefore, there is slightly macrosegregation trend for the alloy element of Al and V in the wedge-shape castings.

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Watanabe, Kouichi. "Fictitious Forces Appearing in Centrifugal Casting." Journal of the Japan Institute of Metals 61, no. 7 (1997): 662. http://dx.doi.org/10.2320/jinstmet1952.61.7_662.

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Mertins, Frederic H. B., Henk Kruidhof, and Henny J. M. Bouwmeester. "Centrifugal Casting of Tubular Perovskite Membranes." Journal of the American Ceramic Society 88, no. 11 (2005): 3003–7. http://dx.doi.org/10.1111/j.1551-2916.2005.00548.x.

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Pathak, J. P., S. Mohan, J. K. Singh, and S. N. Ojha. "Centrifugal casting of leaded aluminium alloys." International Journal of Cast Metals Research 19, no. 5 (2006): 283–88. http://dx.doi.org/10.1179/136404606x153876.

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Huisman, W., T. Graule, and L. J. Gauckler. "Centrifugal slip casting of zirconia (TZP)." Journal of the European Ceramic Society 13, no. 1 (1994): 33–39. http://dx.doi.org/10.1016/0955-2219(94)90055-8.

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Zherebtsov, S. N., and S. V. Fat’yanov. "Centrifugal electroslag casting for 08Kh18N10T steel." Chemical and Petroleum Engineering 42, no. 1-2 (2006): 114–16. http://dx.doi.org/10.1007/s10556-006-0063-8.

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Fu, P. X., X. H. Kang, Y. C. Ma, K. Liu, D. Z. Li, and Y. Y. Li. "Centrifugal casting of TiAl exhaust valves." Intermetallics 16, no. 2 (2008): 130–38. http://dx.doi.org/10.1016/j.intermet.2007.08.007.

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Kühn, Uta, Jan Sander, Katharina Nicole Gabrysiak, et al. "Approach to Estimate the Phase Formation and the Mechanical Properties of Alloys Processed by Laser Powder Bed Fusion via Casting." Materials 15, no. 20 (2022): 7266. http://dx.doi.org/10.3390/ma15207266.

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A high-performance tool steel with the nominal composition Fe85Cr4Mo8V2C1 (wt%) was processed by three different manufacturing techniques with rising cooling rates: conventional gravity casting, centrifugal casting and an additive manufacturing process, using laser powder bed fusion (LPBF). The resulting material of all processing routes reveals a microstructure, which is composed of martensite, austenite and carbides. However, comparing the size, the morphology and the weight fraction of the present phases, a significant difference of the gravity cast samples is evident, whereas the centrifugal cast material and the LPBF samples show certain commonalities leading finally to similar mechanical properties. This provides the opportunity to roughly estimate the mechanical properties of the material fabricated by LPBF. The major benefit arises from the required small material quantity and the low resources for the preparation of samples by centrifugal casting in comparison to the additive manufacturing process. Concluding, the present findings demonstrate the high attractiveness of centrifugal casting for the effective material screening and hence development of novel alloys adapted to LPBF-processing.

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Zhao, Zhen Kai, Yan Pei Song, and Zhi Ming Feng. "Analysis on the Distribution Law of WC Particles during Centrifugal Casting Process." Applied Mechanics and Materials 117-119 (October 2011): 1610–13. http://dx.doi.org/10.4028/www.scientific.net/amm.117-119.1610.

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The mathematical physical model of the unmelted WC particle distribution in the centrifugal force field was established in cylindrical coordinate system using continuity theory and hydromechanics. According to the migration rule of WC particle in the Fe-C alloy melt under centrifugal field, the mathematical equation of particle volume fraction distribution including centrifugal casting parameters was formulated. The mathematical equations were calculated by solving the mathematical equation with numerical analysis, and also the distribution regularity of WC particle in composite layer under different temperature and different Centrifugal speed was achieved. The results show that the particle reinforced composite with a gradient distribution along thickness was prepared by centrifugal casting. The gradient distribution of the particle changes with pouring temperature and centrifugal speed. And the theoretical data accord with experiment data compared to the experimental measurement.

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Gregorová, Eva, Jiří Havrda, and W. Pabst. "ATZ Ceramics Prepared by Slip-Casting and Centrifugal Slip Casting." Key Engineering Materials 206-213 (December 2001): 1961–64. http://dx.doi.org/10.4028/www.scientific.net/kem.206-213.1961.

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