Evaluation of the Temperature Distribution of a Die Casting Mold of X38CrMoV5_1 Steel

• Autorzy: Majernik J. , Podařil M.
• Języki publikacji: EN

Abstrakty

EN

Relatively cold die material comes into contact with the substantially higher temperature melt during the casting cycle, causing high thermal fluctuations resulting into the cyclic change of thermal field. The presented contribution is devoted to the assessment of the impact of temperature distribution on individual zones in the die volume. The evaluated parameter is the die temperature. It was monitored at two selected locations with the 1 mm, 2 mm, 5 mm, 10 mm and 20 mm spacing from the die cavity surface to the volume of cover die and ejector die. As a comparative parameter, the melt temperature in the middle of the runner above the measuring point and the melt temperature close to the die face were monitored. Overall, the temperature was monitored in 26 evaluation points. The measurement was performed using the Magmasoft simulation software. The input settings of the casting cycle in the simulation were identical to those in real operation. It was found, that the most heavily stressed die zones by temperature were within the 20 mm from the die face. Above this distance, the heat supplied by the melt passes gradually into the entire die mass without significant temperature fluctuations. To verify the impact of the die cooling on the thermal field, a tempering system was designed to ensure different heat dissipation conditions in individual locations. At the end of the contribution, the measures proposals to reduce the high change of thermal field of dies resulting from the design of the tempering channel are presented. These proposals will be experimentally verified in the following research work.

Słowa kluczowe

EN

casting process; simulation; temperature distribution; mould material

PL

proces odlewania; symulacja; rozkład temperatury; masa odlewnicza

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2019
• Tom: iss. 2
• Strony: 107--112
• Opis fizyczny: Bibliogr. 8 poz., rys., tab., wykr.

Twórcy

autor

Majernik J.

• Institute of Technology and Business in České Budějovice, České Budějovice, Czech Republic

autor

Podařil M.

• Institute of Technology and Business in České Budějovice, České Budějovice, Czech Republic

Bibliografia

• [1] Šeblt, J. (1962). Molds for High Pressure Die Casting (Formy pro lití kovô pod tlakem). Praha: SNTL.
• [2] Dadić, Z., et al. (2019). Influence of steel preheat temperature and molten casting alloy AlSi9Cu3(Fe) impact speed on wear of X38CrMoV5-1 steel in high pressure die casting conditions. Wear. 15-22. https://doi.org/ 10.1016/j.wear.2019.02.008.
• [3] Kwon, H.-J. & Kwon, H.-K. (2019). Computer aided engineering (CAE) simulation for the design optimization of gate system on high pressure die casting (HPDC) proces. Robotics and Computer-Integrated Manufacturing. 55, 147-153. DOI: 10.1016/j.rcim.2018.01.003.
• [4] Paško, J., Gašpár, Š. (2014). Technological Factors of Die Casting. Lüdenscheid: RAM-Verlag.
• [5] Ružbarský, J. et al. (2014). Technigques of Die Casting. Lüdenscheid: RAM-Verlag.
• [6] Gašpár, Š. et al. (2017). Infuence of Structure Adjustment of Gating System of Casting Mould upon the Quality of Die Cast. Lüdenscheid: RAM-Verlag.
• [7] 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 2017 (December), 1910-1913. DOI: 10.17973/MMSJ.2017_12_201720.
• [8] Gašpár, Š. et al. (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

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019)