Relevant bibliographies by topics / Sand casting

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Sand casting'

Author: Grafiati
Published: 4 June 2021
Last updated: 7 September 2023

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Journal articles on the topic "Sand casting"

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Major-Gabryś, Katarzyna, Małgorzata Hosadyna-Kondracka, Adelajda Polkowska, and Małgorzata Warmuzek. "Effect of the Biodegradable Component Addition to the Molding Sand on the Microstructure and Properties of Ductile Iron Castings." Materials 15, no. 4 (February 18, 2022): 1552. http://dx.doi.org/10.3390/ma15041552.

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In this work, the results of the examinations of the effect of the mold material and mold technology on the microstructure and properties of the casts parts of ductile cast iron have been presented. Four different self-hardening molding sands based on fresh silica sand from Grudzen Las, with organic binders (no-bake process), were used to prepare molds for tested castings. A novelty is the use of molding sand with a two-component binder: furfuryl resin-polycaprolactone PCL biomaterial. The molds were poured with ductile iron according to standard PN-EN 1563:2018-10. The microstructure of the experimental castings was examined on metallographic cross-sections with PN-EN ISO 945-1:2019-09 standard. Observations were made in the area at the casting/mold boundary and in a zone approximately 10 mm from the surface of the casting with a light microscope. The tensile test at room temperature was conducted according to standard PN-EN ISO 6892-1:2016-09. Circular cross-section test pieces, machined from samples taken from castings, were used. In the present experiment, it was stated that interactions between the mold material of different compositions and liquid cast iron at the stage of casting solidification led to some evolution of casting’s microstructure in the superficial layer, such as a pearlite rim observed for acidic mold sand, a ferritic rim for alkaline sand, and graphite spheroids degeneration, especially spectacular for the acidic mold with polycaprolactone (PCL) addition. These microstructural effects may point to the interference of the direct chemical interactions between liquid alloy and the components released from the mold sand, such as sulfur and oxygen. Particularly noteworthy is the observation that the use of molding sand with furfuryl resin with the addition of biodegradable PCL material does not lead to an unfavorable modification of the mechanical properties in the casting. The samples taken from Casting No. 2, made on the acidic molding sand with the participation of biodegradable material, had an average strength of 672 MPa, the highest average strength UTS-among all tested molding sands. However, the elongation after fracture was 48% lower compared to the reference samples from Casting No. 1 from the sand without the addition of PCL.
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Major-Gabryś, Katarzyna, Sabina Puzio, Agata Bryłka, and Jadwiga Kamińska. "The Influence of Various Matrixes on the Strength Properties of Moulding Sands with Thermally Hardened Hydrated Sodium Silicate for the Ablation Casting Process." Journal of Casting & Materials Engineering 5, no. 2 (July 5, 2021): 31–35. http://dx.doi.org/10.7494/jcme.2021.5.2.31.

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The essence of ablation casting technology consists in pouring castings into single-use moulds made from the mixture of sand and a water-soluble binder. After pouring the mould with liquid metal yet while the casting is still solidifying, the mould destruction (washing out, erosion) takes place using a stream of cooling medium, which in this case is water. This paper focuses on the selection of moulding sands with hydrated sodium silicate for moulds used in ablation casting. The research is based on the use of water glass 145 and 150 as binders. As part of the research, loose moulding mixtures based on two silica sands from different sand mines with different content of binders were prepared. The review of literature data and the results of own studies have shown that moulding sand with hydrated sodium silicate hardened by dehydration is characterized by sufficient strength properties to be used in the ablation casting process. Our own research also confirmed the possibility of using these sand mixtures in terms of both casting surface quality and sand reclamation. The results presented in this paper prove that both sand grains and types of binder tested may be used as components in moulding sands devoted to ablation casting.
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Kaila, Vishal N., and Indravadan B. Dave. "An Investigation into the Effect of Backup Coat Sands on Investment Casting Products." Jurnal Kejuruteraan 34, no. 1 (January 30, 2022): 109–15. http://dx.doi.org/10.17576/jkukm-2022-34(1)-10.

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Investment casting is a well-known method for producing precise and finished products. The shell-making process takes a long time and consumes a large amount of coating sands. On the wax pattern tree, the ceramic coating sands are used as a primary coat and several backup coats. Zirconia sand is used for primary coating on a shell in this work. Backup coat sands are made up of fused silica and alumina silica. Colloidal silica is used as a binding material in the formation of all shells. In the work, the effect of fused silica and alumina-silica sand as a backup coat on casting properties was determined. The experimental work evaluated casing properties such as microstructures, grain size measurement, gas porosity, and shrinkages. On the dried, de-waxed, and fired shell, the porosity of the shell mold was determined for the permeability level. Alumina-silica sand has a porosity of 27 to 31 percent, whereas fused silica has a porosity of 22 to 25 percent. It produces better casting properties in alumina–silica casting products than fused silica. Casting grain sizes range from 22 to 38 microns. The grain size of alumina-silica casting is finer than that of fused silica shell casting. Gas porosity and shrinkage in the casting were found to be moderate in all castings.
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Singh, Rupinder, and T. Lal. "Effect of Moulding Sand Properties on Cost Effective Hybrid Rapid Casting Solution for Zinc Alloy." Advanced Materials Research 264-265 (June 2011): 1637–42. http://dx.doi.org/10.4028/www.scientific.net/amr.264-265.1637.

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The purpose of the present experimental investigations is to study the effect of moulding sand properties on reducing the shell wall thickness of mould cavity for cost effective, hybrid rapid casting solution of zinc alloy. Starting from the identification of component/benchmark, technological prototypes were produced, with three different moulding sands (dry, green and molasses), at different shell wall thickness of mould cavity using hybrid rapid prototyping technique (combination of three dimensional printing and conventional sand casting). Measurements on the coordinate measuring machine helped in calculating the dimensional tolerances of the castings produced. Some important mechanical properties were also compared to verify the suitability of the castings. The study suggested that for the shell thickness, having value less than the recommended one is more suitable from dimensional accuracy and economic point of view, for all three moulding sands. Further best shell wall thickness of the mould cavity for different moulding sands, for the selected component/benchmark has been highlighted for rapid casting solution of zinc alloy.
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Jeon, Joo Mae, Soo Jo Lee, Kyeong Hwan Choe, and Jeung-Soo Huh. "Gas Pressure Effect on Sand Collapse in Kinetic Zone of Lost-Foam Casting." Advances in Materials Science and Engineering 2020 (April 25, 2020): 1–9. http://dx.doi.org/10.1155/2020/5861017.

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Pressure of the kinetic zone is an essential factor for making defect-free castings in lost-foam casting process. The extremely high pressure causes many problems, such as reducing the melt velocity and inclusion of residual decomposition of the pattern in the castings, and very low pressure causes sand collapse. Therefore, the minimum gas pressure for preventing sand collapse is required. When the minimum gas pressure can be predicted, computer simulation becomes possible. Successful computer simulations can help reduce the number of trials and the lead time while designing new casting products. A preliminary sand experiment was conducted to predict the gas pressure and reduce the number of actual casting experiments. In this preliminary sand experiment, compressed air was used instead of gas in the kinetic zone. A new mathematical equation was proposed from the results of the preliminary sand experiment. The void ratio of the sand effect on the minimum gas pressure was included in the equation. An actual casting experiment was conducted by melting nodular cast iron to verify this equation. In the actual casting experiment, pressure of the kinetic zone in front of the metal tip was directly measured. The results obtained from the preliminary sand experiment and the actual casting experiment validated the equation.
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Holtzer, M., A. Bobrowski, D. Drożyński, and J. Mocek. "Investigations of Protective Coatings for Castings of High-Manganese Cast Steels." Archives of Foundry Engineering 13, no. 1 (March 1, 2013): 39–44. http://dx.doi.org/10.2478/afe-2013-0008.

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Abstract When cast steel castings are made in moulding sands on matrices of high-silica sand, which has a low fire resistance the problem of the so-called chemical penetration is distinctly visible. Whereas this effect appears to a small degree only when moulding sand matrices are of chromite, zircon or olivine sands. Therefore in case of making castings of high-manganese cast steel (e.g. Hadfield steel) sands not containing free silica should be applied (e.g. olivine sand) or in case of a high-silica matrix protective coatings for moulds and cores should be used. Two protective coatings, magnesite alcoholic (marked as coating 1 and coating 2) originated from different producers and intended for moulds for castings of the Hadfield steel, were selected for investigations. Examinations of the basic properties were performed for these coatings: viscosity, thermal analysis, sedimentation properties, wear resistance. In order to estimate the effectiveness of protective coatings the experimental castings were prepared. When applying coating 1, the surface quality of the casting was worse and traces of interaction between the casting material (cast steel) and the coating were seen. When protective coating 2 was used none interactions were seen and the surface quality was better.
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Łucarz, M. "Analysis of Spent Moulding Sands with Binders of Various Thermal Degradations, in an Aspect of a Possibility of a Directional Mould Degassing." Archives of Foundry Engineering 16, no. 2 (June 1, 2016): 21–26. http://dx.doi.org/10.1515/afe-2016-0020.

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Abstract The results of investigations of spent moulding sands taken from the mould in which the metal core cooling system - to increase the cooling rate of the ladle casting - was applied, are presented in the hereby paper. The changes of the spent moulding sand at the casting external side being the result of degradation and destruction processes of organic binder, were analysed in this publication. Since the reclaimed material, obtained as a result of the mechanical reclamation of spent sands of the same type, is used as a grain matrix of the moulding sand, the amount of a binder left from the previous technological cycle is essential for the sound castings production. On the bases of investigations of the thermal analysis, ignition losses, dusts contents and pH values of the samples taken from the spent sand the conditions under which the process of gases displacing in the casting mould was realised as well as factors limiting the efficient mould degassing - were considered in this study. The possible reason of a periodical occurrence of an increased number of casting defects due to changing gas volume emission, being the reason of the realised technological process, was indicated.
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Chang, Qing Ming, Jing Yuan, Yin Kai Yang, and Xia Chen. "Modeling Analysis and Optimization of Sand Casting Process." Advanced Materials Research 479-481 (February 2012): 226–29. http://dx.doi.org/10.4028/www.scientific.net/amr.479-481.226.

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In this research paper, the sand casting process of a cover-type part for wind turbine was investigated with ProCAST software . The cover-type casting part is big in two dimensions and it is heavy in some local positions where shrinkage cavity and porosity are very likely to from. A non-uniform mesh is used corresponding to the non-uniform wall thickness. Different casting processes are employed, simulated and optimized to obtain sound castings. Simulation results reveal that with appropriate pouring temperature, correct number, size and location of chills and risers, a smooth mold filling, reduced shrinkage and other defects are available and desired sound castings can be produced
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Luo, Yi Lan, Shi Gen Zhu, Zheng Gang Yang, and Rui Zhang. "Study on the Mechanism of the Strippable Sintering Layer of the Natural Yellow Clay-Bonded Sand for Iron Casting." Applied Mechanics and Materials 66-68 (July 2011): 1622–27. http://dx.doi.org/10.4028/www.scientific.net/amm.66-68.1622.

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The distinguished characteristic of casting process of natural yellow clay-bonded green sand is a strippable sintering layer formed at the interface of casting and mould. Hot shake-out can be realized because this sintering layer can firmly attach to the casting surfaces to protect castings at elevated temperature. Better surface quality of castings is achieved after the sintering layer easily shed from the casting surface at room temperature. In this study, a series of tests were carried out to reveal the characteristic of this sintering layer. First, thermal gravimetric/differential thermal analysis (TG/DTA) method was used for detailed analysis the thermal property of natural yellow clay-bonded green sand. And, X-ray diffraction (XRD) analysis was employed to define the phase composition at variable temperatures. Then, sintering experiments were carried out on mixtures of natural yellow clay-bonded sand with iron powder or iron oxides under different conditions. Finally, the mechanical performances of sinter layer of natural yellow clay-bonded sand at elevated and room temperatures were investigated. The result revealed that natural yellow clay-bonded green sand is a kind of low grade molding sand, and iron oxides participate in the forming of sintering layer. The sintering layer of natural yellow clay-bonded sand were proved both excellent plastic at elevated temperature and brittle at room temperature, which coincides with its behavior in the casting process.
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Hendronursito, Yusup, and Yogi Prayanda. "POTENSI PASIR LOKAL TANJUNG BINTANG PADA ALUMINIUM SAND CASTING TERHADAP POROSITAS PRODUK HASIL COR ALUMINIUM." JURNAL KAJIAN TEKNIK MESIN 1, no. 2 (September 21, 2016): 60–68. http://dx.doi.org/10.52447/jktm.v1i2.336.

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Green sand is one of the most important components in the process of metal casting. The sand in Indonesia region is varied level of subtlety, size of sand, and shape of sand. Green sand used in the process of metal casting is possible can affect the quality of casting product. This aims to determine the potential of Tanjung Bintang sand as green sand and the quality of the product in terms of porosity defects. The research was conducted by varying sand river from Tanjung Bintang and sand from Maringgai. Composition made varying is 100%,75%, 50%, and 25% Tanjung Bintang sand compared Maringgai sand with bentonit and water is 10% and 5% constantly .The Examine of the green sand by SNI 15-0312-1989 among other water content, clay content, Grain Finnest Number (GFN), Shape of grain. The result said aluminium casting product with 50% Tanjung Bintang sand has the lowest value of porosity, 5.08% and the higher value with 75% composition of Tanjung Bintang sand, 6.98%.
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Dissertations / Theses on the topic "Sand casting"

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Ziolkowski, Joseph Edmund. "Modeling of an aerospace sand casting process." Link to electronic thesis, 2002. http://www.wpi.edu/Pubs/ETD/Available/etd-1223102-102625.

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Hock, Kuah Teng. "Numerical simulation of sand casting process." Ohio : Ohio University, 1987. http://www.ohiolink.edu/etd/view.cgi?ohiou1183046313.

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Saleem, Muhammad Qaiser. "Helium Assisted Sand Casting of Aluminum Alloys." Digital WPI, 2011. https://digitalcommons.wpi.edu/etd-dissertations/204.

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Sand casting is the most widely used casting process for both ferrous and non-ferrous alloys; however, the process is marred by large grain size structures and long solidification times. The coarser microstructure has a negative effect on the mechanical properties of the cast components and the long processing time affects the overall productivity of the process. The research reported herein addresses these problems for aluminum sand castings by enhancing the rate of heat extraction from the casting by replacing air, which is typically present in the pores of the sand mold and has a relatively low thermal conductivity by helium which has a thermal conductivity that is at least five times that of air in the temperature range of interest. The effect of (1) the flow rate of helium, (2) the way in which it is introduced into the mold, and (3) the mold design on (a) the average grain size, (b) the secondary dendrite arm spacing, and (c) the room temperature tensile properties of castings is investigated and compared to their counterparts produced in a typical sand casting process. In addition, a cost analysis of the helium-assisted sand casting process is performed and an optimum set of parameters are identified. It is found that when the helium-assisted sand casting process is performed with close to the optimum parameters it produces castings that exhibit a 22 percent increase in ultimate tensile strength and a 34 percent increase in yield strength with no significant loss of ductility, no degradation in the quality of the as-cast surfaces, and no significant increase in the overall cost.
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Spangler, Kimberly Hawkins. "Sand casting benchmarking questionnaire development, analysis, and participant evaluation /." Morgantown, W. Va. : [West Virginia University Libraries], 2000. http://etd.wvu.edu/templates/showETD.cfm?recnum=1532.

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Thesis (M.S.)--West Virginia University, 2000.
Title from document title page. Document formatted into pages; contains viii, 167 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 90-93).
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Heydari, Farhad. "Mechanisms of sand flow and compaction in core-blowing." Thesis, University of Warwick, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.357857.

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Gourisankar, Vellapillil. "Computer modeling of parting plane problem." Thesis, Georgia Institute of Technology, 1985. http://hdl.handle.net/1853/16813.

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Capps, Johnathon. "Advancements in vacuum process molding and casting." Auburn, Ala., 2005. http://repo.lib.auburn.edu/2005%20Summer/master's/CAPPS_JOHNATHON_6.pdf.

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Tjoa, Robertus Tjin Hok Carleton University Dissertation Engineering Mechanical. "Assessment of the accuracy of a computational casting model." Ottawa, 1992.

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Spataro, Mark Paul. "Comparison of mechanical performance between magnesium alloy sand castings and high pressure die castings /." [St. Lucia, Qld.], 2004. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe18378.pdf.

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Kambakas, Kyriakos. "Development of white cast iron matrix composites by sedimentation sand casting." Thesis, University of Surrey, 2006. http://epubs.surrey.ac.uk/843688/.

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In the work that is described in this thesis we studied a new cast iron based composite material that was produced by a double casting technique using sedimentation sand casting. The material is based on the high Cr white cast irons (WCI) 15, 20 % Cr-Mo- LC and 25 % Cr matrixes, according to ASTM A532-75a and was designed to exceed the wear life of wear resistant materials that are used in cement, mining, coal extraction and chemical and process industries currently. The working region of the material extends to a depth of 5-8 mm below the surface and is an in situ and ex situ particle reinforced composite. WC particles of different sizes (1-3 and 3-5 mm) were selected as the ex situ reinforcements. Thus, the composite consisted of a WCI matrix, which was reinforced with WC and other transition metal carbide particles. A sand casting method was developed during which the WC particles were directed to a specific location in the ingot and were distributed uniformly in the near surface area of the composite (the working region of the material) during casting/solidification of the ingot. This ensured chemical bonding between the high Cr WCI and the particle reinforced composite (the working region) at a well defined interface parallel to the working surface. Solidification of the melt started from the WC particles around which three reaction zones were formed. Owing to partial dissolution of the WC particles and the resulting interdiffusion of elements such as W, Co, Fe, C and Cr, carbides containing Fe, Cr, W and Co were formed in the reaction zones. It is shown that current models for the interaction between a reinforcing particle and an advancing S/L interface in liquid route MMCs cannot describe the present case successfully because the solidification of the melt starts around the WC particles after the latter have settled in the near surface region of the casting. Two new approaches have been studied; in the first the WC particles travel through the iron melt and settle at the bottom of the mould and in the second WC particles settled at the bottom of the mould experience the forces of the liquid flow. The solidification paths of the three WCI matrixes and MMCs have been simulated with the Scheil-Gulliver model using the Thermo-Calc software for different iron based alloy systems, by changing the W, Cr and C concentrations. In the WCI, carbides solidify after the austenite. The increase in Cr from 14 to 25 wt. %, for fixed C (at 2, 2.5 or 3 wt. %), causes the stabilization of phases according to cementite M7C3 FCC (stable). Only for Cr up to 30 wt. % and C up to 2.5 wt. % the cementite is replaced by the BCC phase. The increase in C content from 2 to 3 wt. % for fixed Cr (at 14, 20 or 25 wt. %) has the same effect. In the MMC, the increase in W from 15 to 25 wt. % causes the stabilization of M6C. As the C increases from 2.5 to 6 wt. %, first the M7C3 is stabilised and for C > 4 wt. % the MC phase is favoured. The increase in Cr leads in the formation of the M23C6 while simultaneous increase in Cr and C promotes the M7C3 phase and restrains the formation of the M6C that resulted from the increase of W. Finally the simultaneous increase of C, W and Cr stabilize the MC phase for > 4 wt. % C. The wear of the new materials was evaluated both in an industrial scale and in the laboratory (pin-on-disc). Segments of an industrial pulverising ash mill used in the cement industry were manufactured using the casting method and materials developed in this thesis. The results showed an improvement in the wear life of the component of several times compared to the standard high Cr WCI material used by the same industry to date.
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Books on the topic "Sand casting"

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Chastain, Stephen D. Metal casting: a sand casting manual for the small foundry. Jacksonville, FL: [tha author], 2004.

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Chastain, Stephen D. Metal casting: a sand casting manual for the small foundry. Jacksonville, FL: [tha author], 2004.

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Metal casting: A sand casting manual for the small foundry. Jacksonville, FL: Steve Chastain, 2004.

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Wang, Wanlong, Henry W. Stoll, and James G. Conley. Rapid Tooling Guidelines For Sand Casting. Boston, MA: Springer US, 2010. http://dx.doi.org/10.1007/978-1-4419-5731-3.

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Wang, Wanlong. Rapid tooling guidelines for sand casting. New York: Springer, 2010.

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Skinner, Tina. Sand-casting concrete: Five easy projects. Atglen, Pa: Schiffer Publications Ltd., 2008.

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British Cast Iron Research Association., ed. Greensand moulding technology. Birmingham: British Cast Iron Research Association, 1985.

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Potratz, Wayne E. Hot metal!: A complete guide to the metalcasting of sculpture. Minneapolis, Minn: Turtle Sign Co., 1992.

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W, Smith C. Recovery of zircon from investment casting molds. [Avondale, Md.]: U.S. Dept. of the Interior, Bureau of Mines, 1985.

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Bradney, David D. The NFFS guide to aluminum casting design: Sand and permanent mold. Des Plaines, Ill: Non-Ferrous Founders' Society, 1994.

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Book chapters on the topic "Sand casting"

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Hurst, Steve. "4. Sand casting." In Metal Casting, 38–59. Rugby, Warwickshire, United Kingdom: Practical Action Publishing, 1996. http://dx.doi.org/10.3362/9781780442792.004.

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Wang, Wanlong, Henry W. Stoll, and James G. Conley. "Sand Casting Processes." In Mechanical Engineering Series, 1–10. Boston, MA: Springer US, 2009. http://dx.doi.org/10.1007/978-1-4419-5731-3_1.

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Wang, Wanlong, Henry W. Stoll, and James G. Conley. "Sand Casting Dimensional Control." In Mechanical Engineering Series, 69–98. Boston, MA: Springer US, 2009. http://dx.doi.org/10.1007/978-1-4419-5731-3_5.

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Senkov, O. N., A. P. Druschitz, S. V. Senkova, K. L. Kendig, and J. Griffin. "Ultra-High Strength Sand Castings from Aluminum Alloy 7042." In Shape Casting, 199–206. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2011. http://dx.doi.org/10.1002/9781118062050.ch24.

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Prabhakar, Arun, Konstantinos Salonitis, and Mark Jolly. "Characterisation of Lead Sheet Manufactured Using Traditional Sand-Casting Technique." In Shape Casting, 283–92. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-06034-3_27.

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Lett, Ratessiea, Sergio Felicelli, Rafael Cuesta, John Berry, J. Antonio Maroto, and Ruth San José. "Weibull Analysis of Thin A356 Plates Cast with an Electromagnetic Pump Green Sand Process." In Shape Casting, 157–64. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2011. http://dx.doi.org/10.1002/9781118062050.ch19.

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Xiuhui, Li, and Xu Kuangdi. "Sand-Casting, Technique and History of." In The ECPH Encyclopedia of Mining and Metallurgy, 1–2. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-0740-1_14-1.

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Sadarang, Jatin, Ramesh Kumar Nayak, and Isham Panigrahi. "Evaluation of Compactibility and Shear Strength of Sand-Less Casting Mould for Sand Casting Process." In Lecture Notes in Mechanical Engineering, 449–57. Singapore: Springer Singapore, 2022. http://dx.doi.org/10.1007/978-981-16-8341-1_37.

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Galles, D., and C. Beckermann. "Modeling of Distortion of a Steel Bracket Sand Casting." In Shape Casting: 6th International Symposium, 43–50. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-48166-1_6.

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Galles, D., and C. Beckermann. "Modeling of Distortion of a Steel Bracket Sand Casting." In Shape Casting: 6th International Symposium, 43–50. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2016. http://dx.doi.org/10.1002/9781119274865.ch6.

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Conference papers on the topic "Sand casting"

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Jabbari, Masoud, Jon Spangenberg, Emil Hovad, Raphaël Comminal, Jesper H. Hattel, Katja I. Hartmann, and Denis Schütz. "Rheological Characterization of Green Sand Flow." In ASME 2016 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/imece2016-66469.

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The main aim of this paper is to characterize experimentally the flow behaviour of the green sand that is used for casting of sand moulds. After the sand casting process is performed, the sand moulds are used for metal castings. The rheological properties of the green sand is important to quantify as they can be used to evaluate whether the casting process will be successful. In addition, the properties can potentially be implemented in a computational fluid dynamics model which can be used as a tool to optimize the process. The rheological experiments are carried out on a MCR 502 rheometer with a new module for characterizing granular materials. The new module enables viscosity measurements of the green sand as function of the shear rate at different flow rates, i.e. 0, 2, 4, 6, 8, 10, 12 and 15 L/min. The results show generally that the viscosity decreases with both the shear- and flow rate. In addition, the measurements show that the green sand flow follows a shear-thinning behaviour even after the full fluidization point.
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Stoll, Henry W. "Cost Drivers in Sand Casting Design." In ASME 1999 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1999. http://dx.doi.org/10.1115/imece1999-0712.

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Abstract Sand casting offers weight and cost advantages that make it an optimal manufacturing process choice for many situations. However, to fully realize the cost reduction potential of sand casting, the casting designer must specify geometry that is carefully chosen to minimize tooling complexity and lead time and to maximize process yield. This paper systematically explores the sources of cost in sand casting to understand how design decisions impact total cost. A comprehensive cost model for sand casting is proposed, several key design related cost drivers are identified, and the qualitative relationship between the cost drivers and cost sources is discussed.
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Ramaswami, Hemant, and Sam Anand. "Multiple Parting Surfaces for Sand Casting." In ASME 2004 International Mechanical Engineering Congress and Exposition. ASMEDC, 2004. http://dx.doi.org/10.1115/imece2004-61845.

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Multiple parting surfaces are frequently used in sand casting, die casting and injection molding processes. However, most research in this area has focused on die casting and injection molding. Parting surfaces for die casting and injection molding are relatively easier to compute compared to sand casting because their orientations and shapes are less restricted. In sand casting, the parting surfaces have to be parallel to each other and perfectly flat to permit the use of flasks with more than two pieces. The concepts of visibility and object illumination can be used to divide an object into two parts using a single parting surface. These methods, however, cannot be directly used for multiple parting surfaces. In this paper, a methodology to generate multiple parting surfaces for sand casting is described. The method uses Gauss maps to identify potential casting directions, and global accessibility cones to determine which faces can be cast in the same part of the pattern. The pattern is sliced using parallel planes such that each slice can be withdrawn from the mold in at least one direction. After the object is sliced, the number of parting surfaces is reduced by combining adjacent middle sections depending on their accessible directions.
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Voyer, J., C. Peterlechner, and U. Noster. "Flame Sprayed Al-12Si Coatings for the Improvement of the Adhesion of Composite Casting Profiles." In ITSC2008, edited by B. R. Marple, M. M. Hyland, Y. C. Lau, C. J. Li, R. S. Lima, and G. Montavon. Verlag für Schweißen und verwandte Verfahren DVS-Verlag GmbH, 2008. http://dx.doi.org/10.31399/asm.cp.itsc2008p1326.

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Abstract Flame sprayed Al-12Si coatings were produced onto the surface of composite castings parts in order to enhance the adhesion of such castings. Due to the high surface roughness and the presence of pores in the coatings combined with the formation of an intermetallic phase at the interface, the adhesion of flame sprayed composite castings could be enhanced by a factor of 2 in comparison to blank castings and by a factor of 1.3 when compared to sand-blasted castings. However, results also show that gaps are mostly present at the interface between the Al profiles and the flame sprayed coatings and these gaps have a negative effect on the adhesion values of the composite casting parts. Therefore, an optimization of the adhesion of the coating on the Al profiles through an optimization of both the sand-blasting and the flame spraying parameters would be beneficial for further enhancement of the adhesion of composite casting parts.
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Perumal, Maniraj, Baskar Anthonysamy, and Ashokkumar Sundaramoorthy. "Development of Porous Free Combustion Chamber Prototype Cylinder Head Casting in Sand Casting." In SAE 2015 World Congress & Exhibition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2015. http://dx.doi.org/10.4271/2015-01-0524.

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Chang, N. S., G. P. Faubert, K. A. Goulait, J. C. Grebetz, and J. R. Huth. "Experience in Sand Casting Aluminum MMC Prototype Components." In International Congress & Exposition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 1993. http://dx.doi.org/10.4271/930179.

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de Lacalle, L. N. López, A. Rodríguez, A. Lamikiz, F. J. Peñafiel, Francisco Chinesta, Yvan Chastel, and Mohamed El Mansori. "Milling of Sand Blocks to Make Casting Moulds." In INTERNATIONAL CONFERENCE ON ADVANCES IN MATERIALS AND PROCESSING TECHNOLOGIES (AMPT2010). AIP, 2011. http://dx.doi.org/10.1063/1.3552321.

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Gagpalliwar, Parth, Rajat Vyawhare, and Pankaj Dhatrak. "Implementation of additive manufacturing in sand casting process." In 4TH INTERNATIONAL SCIENTIFIC CONFERENCE OF ENGINEERING SCIENCES AND ADVANCES TECHNOLOGIES. AIP Publishing, 2023. http://dx.doi.org/10.1063/5.0118565.

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King, Philip, Daniel Martinez, and Guha P. Manogharan. "Novel Sprue Designs to Reduce Casting Defects in Nickel-Aluminum Bronze: A Computational Study." In ASME 2020 15th International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/msec2020-8486.

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Abstract As 3D Sand-Printing technology becomes more widely available to the casting market, the search for opportunities to take advantage of its freedom of design is critical for its rapid adoption by the casting community. This original research investigates casting design principles towards defect-free alloy Nickel-Aluminum Bronze (NAB). This is an alloy of interest for marine applications due to its corrosion resistance, mechanical strength and good castability. Numerical modeling of flow within a casting is examined, and rigging redesigns are proposed to improve casting quality by controlling flow behavior. It has been demonstrated that turbulence and filling velocity are determining factors that seriously impact casting performance due to the generation of casting defects. Among these are bifilm formations, gas and sand entrapment and cold shut. This work examines the effectiveness of mathematically designed rigging components in controlling mold filling and compares the results to a conventional casting rig. Design solutions are proposed using 3DSP that can be directly applied to casting operations of Nickel-Aluminum Bronze. The results from this study demonstrate the effectiveness of mathematically designed sprues to reduce filling velocity of Nickel-Aluminum Bronze. The procedure followed here can be extended to marine casting production environments. Findings from this study can be seamlessly transferred to castings of any geometry, alloy and pouring conditions.
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Manzari, M. T., D. T. Gethin, and R. W. Lewis. "Optimum Design of Chills in the Sand Casting Process." In ASME 2000 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2000. http://dx.doi.org/10.1115/imece2000-1584.

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Abstract A re-meshing free algorithm is presented for optimizing the size and shape of chills in a sand casting process. The heat conduction in each chill is assumed to be one-dimensional normal to its contact surface. The chill is removed from the casting layout and replaced with heat fluxes applied on the associated mould and casting interfaces. The change in size and shape of the chill is modeled by moving the borders of the interface contact regions. A change in thickness of the chill is also included using a parameter which controls the magnitude of the interface heat fluxes and implies the thermal capacity of the chill. The model is linked to an optimization tool to search for the optimum set of dimensions of the chill that produces a prescribed directional cooling in the casting. A test case is solved to demonstrate the capability of the proposed algorithm in optimizing chill design in complex geometries.
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Reports on the topic "Sand casting"

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Prof. John J. Lannutti and Prof. Carroll E. Mobley. Improvements in Sand Mold/Core Technology: Effects on Casting Finish. Office of Scientific and Technical Information (OSTI), August 2005. http://dx.doi.org/10.2172/841468.

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Vondra, L. F., and J. S. Burningham. National Metal Casting Research Institute final report. Volume 1, Sand reclamation. Office of Scientific and Technical Information (OSTI), August 1995. http://dx.doi.org/10.2172/119803.

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J. K. Parker, K. A. Woodbury, T. S. Piwonka, and Y. Owusu. Relationship Between Casting Distortion, Mold Filling, and Interfacial Heat Transfer in Sand Molds. Office of Scientific and Technical Information (OSTI), September 1999. http://dx.doi.org/10.2172/12625.

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Y. A. Owusu. Application of statistical methods for analyzing the relationship between casting distortion, mold filling, and interfacial heat transfer in sand molds. Office of Scientific and Technical Information (OSTI), March 1999. http://dx.doi.org/10.2172/751038.

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Barlow, J. O., D. M. Stefanescu, A. M. Lane, W. C. Schreiber, M. Owens, and T. S. Piwonka. Metal Penetration in Sand Molds for Steel Castings: Annual Report. Office of Scientific and Technical Information (OSTI), April 1996. http://dx.doi.org/10.2172/432796.

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Sikka, V. K. Characterization of modified 9 Cr-1 Mo steel sand castings. Office of Scientific and Technical Information (OSTI), April 1985. http://dx.doi.org/10.2172/5619593.

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Thomas C. Chidsey Jr, David E. Eby, and Louis H. Taylor. SCANNING ELECTRON MICROSCOPY AND PORE CASTING: CHEROKEE AND BUG FIELDS, SAN JUAN COUNTY, UTAH. Office of Scientific and Technical Information (OSTI), December 2003. http://dx.doi.org/10.2172/835956.

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