- Autor
- Ružbarský Juraj (Technical University of Košice, Slovak Republic), Biały Witold (Silesian University of Technology, Poland)
- Tytuł
- Spreading of Cracks Due to Thermal Fatigue in Metal Molds
- Źródło
- Multidisciplinary Aspects of Production Engineering, 2018, vol. 1, s. 11-18, rys., bibliogr. 10 poz.
- Słowa kluczowe
- Materiałoznawstwo, Inżynieria materiałowa, Przemysł metalowy
Materials science, Materials engineering, Metal industry - Uwagi
- streszcz., summ.
- Abstrakt
- The article deals with the formation and spread of cracks from thermal fatigue in metallic forms. For a detailed examination of the problem, it is necessary to describe the thermal side of the process and the mechanism of mechanical stressing of the material. For the heating of the material is valid where the thermal diffusivity of the material is exercised by the decision method. The stress of the material by heating from the die casting metal depends mainly on the physical properties of the material when the calculated stress does not exceed the yield point. Also, with the help of dislocations write the life to the origin of the cracks in the cycles eventually the share of this lifetime on the total lifetime in dependence on the mechanical and physical properties of the material. During operation tests the occurrence of the cracks on the mold surface was initiated by the inclusion or concentration of stress in the knurling effect of fine grooves after grinding. Other cracks occurred in the undersurface layer and their direction was statistically accidental. (original abstract)
- Pełny tekst
- Pokaż
- Bibliografia
-
- Dahlberg, M. (2004). Fatigue Crack Propagation in Nodular Graphite Cast Iron. In: International Journal of Cast Metals Research, Vol. 17, No. 1, p. 29-37.
- Davidson, C; Viano, D; Lu, L; et al. (2006). Observation of Crack Initiation during Hot Tearing. In: International Journal of Cast Metals Research, Vol. 19, No. 1, p. 59-65.
- Gašpar, Š., Paško, J., Puškáš, M. (2014). Effect of Pressing Speed and Specific Pressure in Pressure Mould Cavity on Values of Mechanical Properties of Aluminium Cast of Lower Wight Category made from EN AC 47100 Alloy - 2014. In: International Journal of Cast Metals Research, Vol. 27, no. 5, p. 267-274.
- Klouda, P., Moni, v., Blata, J., Donát, L., Helebrant, F. (2017). Degradation of the state of a ball track at the ZP 6600. In: Management Systems in Production Engineering, Vol. 25, issue 1,10, p. 68-75.
- Lo, J; Shen, G; Santos, R. (2004). Preform Cracking in Squeeze Cast Magnesium Based Composites - Effects of Tooling Temperature. In: International Journal of Cast Metals Research, Vol. 17, No. 4, pp. 213-219.
- Midor, K., Žarnovský, J. (2016). Innovative use of quality management methods for product improvement. In: Management Systems in Production Engineering, No 4 (24), p. 264-267.
- Mortsell, M; Hamberg, K; Wasen, J. (2003). Crack Initiation in Ductile Cast Iirons. 7th International Symposium on the Science and Processing of Cast Iron. In: International Journal of Cast Metals Research, Vol. 16, No. 1-3, p. 245-250.
- Paško J. et al (2014). Die Casting Defects of Castings from Silumin, In: Applied Mechanics and Materials, Volume 510, pp 91-96.
- Ružbarský, J., Paško, J., Gašpár, Š. (2014). Techniques of Die Casting. RAM-Verlag, 2014, 199 p.
- Vinarcik, E. J. (2003). High Integrity Die Casting Processes, New York: John Wiley and Sons.
- Cytowane przez
- ISSN
- 2545-2827
- Język
- eng
- URI / DOI
- http://dx.doi.org/10.2478/mape-2018-0002
