Theoretical-experimental determining of cooling time (t8/5) in hard facing of steels for forging dies | Zendy

Vukić Lazić | Zendy; Aleksandar Sedmak | Zendy; Miroslav Živković | Zendy; Srbislav Aleksandrović | Zendy; Rajko Čukić | Zendy; Radomir Jovičić | Zendy; Ivana Ivanović | Zendy

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Theoretical-experimental determining of cooling time (t8/5) in hard facing of steels for forging dies

Author(s) -

Vukić Lazić,

Aleksandar Sedmak,

Miroslav Živković,

Srbislav Aleksandrović,

Rajko Čukić,

Radomir Jovičić,

Ivana Ivanović

Publication year - 2010

Publication title -

thermal science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.339

H-Index - 43

eISSN - 2334-7163

pISSN - 0354-9836

DOI - 10.2298/tsci1001235l

Subject(s) - forging , finite element method , plane (geometry) , expression (computer science) , materials science , mechanical engineering , computer science , structural engineering , mathematics , geometry , engineering , metallurgy , programming language

This paper investigates the accuracy of analytical, empirical, and numerical expressions, i. e. the most favourable methods for calculating the cooling time from 800 to 500°C (t8/5). The degree of accuracy of time t8/5 is very significant, because it determines the cooling rate, and consequently the structural changes in heat affected zone for hard faced layers. Based on the presented results, one can conclude that the finite element method provides the best conformity with the experiment and among analytical and empirical formulas the same goes for the expression of Japanese authors, for the case of hard facing of plane and prismatic parts.

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