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During the casting cycle, the relatively cold material of the mold comes into contact with the significantly higher temperature melt, which causes high temperature fluctuations on the face of the mold and in its volume, which cause cyclic temperature stress. The submitted article is based on conclusions of the article “Evaluation of the temperature distribution of a die casting mold of X38CrMoV5_1 steel”, in which the modification of temperature relations of the mold in the direction from the mold face to its volume was investigated. In current article, the influence of the tempering channel distance on the temperature modification in the volume of high pressure die casting mold is investigated. Three variants of the tempering channels placements with different location respecting the mold cavity were investigated. The temperature was monitored in two selected locations, with distribution of 1mm, 2mm, 5mm, 10mm and 20mm in the direction from the mold cavity surface to the volume of fixed and movable part of the mold. As a comparative parameter, the temperature of the melt in the center of the runner above the measuring point and the temperature of the melt close to the face of the mold were monitored. The measurement was performed using Magma soft simulation software. It was discovered that up to a distance of 5mm from the face of the mold, a zone with complete heat transit without its accumulation occurs. Above this limit, the mold begins to accumulate heat, and from distance of 20mm from the face of the mold, the heat gradually passes into the entire mass of the mold without significant temperature fluctuations. The propositions derived from the results of the experiments presented at the end of the article will subsequently be experimentally verified in further research works.
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Tom
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115--120
Opis fizyczny
Bibliogr. 15 poz., il., tab., wykr.
Twórcy
autor
- Institute of Technology and Business in České Budějovice, Czech Republic
autor
- Institute of Technology and Business in České Budějovice, Czech Republic
autor
- Institute of Technology and Business in České Budějovice, Czech Republic
Bibliografia
- [1] Ebrahimi, A., Fritsching, U., Heuser, M., Lehmhus, D., Struß, A., Toenjes, A., von Hehl, A. (2020). A digital twin approach to predict and compensate distortion in a High Pressure Die Casting (HPDC) process chain. In Proceedings of the 5th International Conference on System-Integrated Intelligence, 11-13 November 2020 (pp. 144-149). Bremen: Elsevier B.V. DOI: 10.1016/j.promfg.2020.11.026.
- [2] Bi, C., Gou, Z. & Xiong, S. (2015). Modeling and simulation for die casting mould filling process using cartesian cut cell approach. International Journal of Cast Metals Research. 28(4), 234-241. DOI: 10.1179/1743133615Y.0000000006.
- [3] Choi, J., et al. (2022). Fatigue life prediction methodology of hot work tool steel dies for high-pressure die casting based on thermal stress analysis. Metals. 12(10), 1744, 1-18. DOI: 10.3390/met12101744.
- [4] Cao, H., Shen, C., Wang, C., Xu, H. & Zhu, J. (2019). Direct observation of filling process and porosity prediction in high pressure die casting. Materials. 12(7), 1099, 1-19. DOI: 10.3390/ma12071099.
- [5] Yu, W., Liang, S., Cao, Y.Y., Li, X.B., Guo, Z.P. & Xiong, S.M. (2017). Interfacial heat transfer behavior at metal/die in finger-plated casting during high pressure die casting process. China Foundry. 14(4), 258-264. DOI: 10.1007/s41230-017-6066-6.
- [6] Jiao, X., Liu, C., Wang, J., Guo, Z., Wang, J., Wang, Z., Guo, J. & Xiong, S. (2020). On the characterization of microstructure and fracture in a high-pressure die-casting Al-10 wt%Si alloy. Progress in Natural Science: Materials International. 30(2), 221-228. DOI: 10.1016/j.pnsc.2019.04.008.
- [7] Iwata, Y., Dong, S., Sugiyama, Y. & Iwahori, H. (2014). Change in molten metal pressure and its effect on defects of aluminum alloy die castings. Materials Transactions. 55(2), 311-317. DOI: 10.2320/matertrans.F-M2013838.
- [8] Majernik, J. & Podaril. M. (2019). Evaluation of the temperature distribution of a die casting mold of X38CrMoV5_1 steel. Archives of Foundry Engineering. 19(2), 107-112. DOI: 10.24425/afe.2019.127125.
- [9] Ružbarský, J., Paško, J., & Gašpár, Š. (2014). Technigques of Die Casting. Lüdenscheid: RAM-Verlag.
- [10] Trytek, A. Orłowicz, A.W., Tupaj, M., Mróz, M., Markowska, O., Bąk, G. & Abram, T. (2016) The effect of a thin-wall casting mould cavity filling conditions on the casting surface quality. Archives of Foundry Engineering. 16(4), 222-226. DOI: 10.1515/afe-2016-0113.
- [11] Gašpár, Š., Paško, J., & Majerník, J. (2017). Infuence of Structure Adjustment of Gating System of Casting Mould upon the Quality of Die Cast. Lüdenscheid: RAM-Verlag.
- [12] Noga, P., Tuz, L., Żaba, K. & Zwoliński, A. (2021). Analysis of microstructure and mechanical properties of alsi11 after chip recycling, co-extrusion, and arc welding. Materials. 14(11), 3124, 1-22. DOI: 10.3390/ma14113124.
- [13] Majernik, J. Gaspar, S., Podaril, M. & Coranic, T. (2020). Evaluation of thermal conditions at cast-die casting mold interface. MM Science Journal. 2020 (November), 4112-4118. DOI: 10.17973/MMSJ.2020_11_2020041.
- [14] Karková, M., Majerník, J. & Kmec, J. (2017). Analysis of influencing the macrostrukture and hardness of casting surface layer by changing conditions of crystallization. MM Science Journal. 1910-1913. DOI: 10.17973/MMSJ.2017_12_201720.
- [15] Gašpár, Š., Pasko, J., Malik, J., Panda, A., Jurko, J. & Maseenik, J. (2012). Dependence of pressure die casting quality on die casting plunger velocity inside a filling chamber of a pressure die casting machine. Advanced Science Letters. 14(1), 499-502. DOI: 10.1166/asl.2012.3989.
Uwagi
Opracowanie rekordu ze środków MNiSW, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2024)
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-c0c05c03-496d-4043-ad6c-0e4500be0914