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Analysis and Validation of Database in Computer Aided Design of Jewellery Casting

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An overview of the bibliography regarding the connection of knowledge about precious metal alloys and aspects of the use of computer aided technologies to the optimization of the jewelry casting processes is presented. An analysis of the usability of selected CAx systems was made: 1) for spatial design, called Rhinoceros 6 and 2) CAE system: NovaFlow & Solid (NF&S). The authors describe own research including data acquisition and evaluation of temperature variations during solidification of the selected Au-Ag-Cu alloy, with the identification of the phase transformations of this alloy. The intensity of heat exchange was changed (cooling of specimens under ambient temperature conditions – "normal" intensity and with the furnace – very slow cooling). The problem of completing the simulation database was pointed out and analyzed. Examples of simulations of casting selected jewelry (ring and signet) were given and compared with the result of the experiment realized in real conditions. It was confirmed that the optimization by combining experimental and simulation studies allows for the acquisition of new knowledge, and also facilitates the creation of new artistic designs of jewelry as well as performing the feasibility check, and then optimizing the chosen technology.
Opis fizyczny
Bibliogr. 34 poz., fot., rys., tab., wykr.
  • Poznan University of Technology, 3 Piotrowo Street, 60-965 Poznan, Poland
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  • [3] Ignaszak, Z., Hajkowski, J. & Popielarski, P. (2013). Examples of New Models Applied in Selected Simulation Systems with Respect to Database. Archives of Foundry Engineering. 13(1), 45-50.
  • [4] Ignaszak, Z., Popielarski, P., Hajkowski, J. & Codina, E. (2015). Methodology of Comparative Validation of Selected Foundry Simulation Codes. Archives of Foundry Engineering. 15(4), 37-44.
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  • [6] Wannarumon, S., Grande, M.A. (2009). Comparisons of Computer Fluid Dynamic Software Programs applied to Jewelry Investment Casting Process. World Academy of Science, Engineering and Technology 55 (pp. 88-95).
  • [7] Wojciechowski, J. (2018). Computer support of casting techniques in jewelery and completing of database for these simulations. Master's thesis Promoter Z. Ignaszak, Poznan University of Technology. (in Polish).
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  • [19] Wikimedia Commons (2009). Approximate colours of Ag– Au–Cu alloys (in jewelry making), https://commons.
  • [20] Fryé, T. (2017). Mechanical Properties and Wear Resistance of Platinum Jewelry Casting Alloys: A Comparative Study., pp.1-40.
  • [21] Corti, Ch.W. (2009). Cracking up? Causes of cracking in manufacture and beyond. uploads/asset file/209/FRATTURE_ CORTI_ JTF2009_ ITA.pdf, pp.118-135.
  • [22] Sobczak, J.J. and others (2009). Application of computer aided techniques of foundry processes for the design of heart prosthesis components, (in polish). Report of the Foundry Institute, Kraków,, pp. 184-225.
  • [23] Zitzewitz, V. (2016). What is the Difference Between CAD and CAE, https://www. /difference -between-cad-and-cae/,
  • [24] Ignaszak, Z. (2002) Virtual prototyping in foundry. Database and validation. Poznań: Ed. Poznan University of Technology.
  • [25] Siemiński, P., Budzik, G. (2015). Incremental techniques. Warszawa: Warsaw University of Technology Publishing House. (in Polish).
  • [26] Eaglescliffe, B. (2019). Gold Testing: How to Tell What Karat Your Gold Is. /jewelry-and-valuables-how-to-tell-what-karat-gold-is.
  • [27] Collective work (2016). Cupellation method (in Polish).
  • [28] Model. (in Polish).
  • [29] Ralization. (in Polish).
  • [30] Ignaszak, Z. (1999). The use of simulation programs in French research centers and foundries. Archives of Foundry, Ossolineum, Katowice, pp. 59-66. (in Polish).
  • [31] Novacast (2010) NovaFlow & Solid CV. Manual.
  • [32] Vasková, I., Fecko, D. & Eperješ, L. (2011). Comparison of simulation programs Magmasoft and NovaFlow&Solid in terms of results accuracy. Archives of Foundry Engineering. 11(spec.1), 51-54.
  • [33] Ignaszak, Z., Hajkowski, J. & Popielarski, P. (2013). Examples of New Models Applied in Selected Simulation Systems with Respect to Database. Archives of Foundry Engineering. 13(spec.1), 45-50. (in Polish).
  • [34] Grande, M.A. & Wannaru, S. (2009). Numerical Simulation of Investment Casting of Gold Jewelry: Experiments and Validations. World Academy of Science, Engineering and Technology. International Journal of Materials and Metallurgical Engineering. 3(7), 118-143.
Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).
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