Transactions of FAMENA, Vol. 48 No. 1, 2024.
Izvorni znanstveni članak
https://doi.org/10.21278/TOF.481056323
An Investigation Into the Applicability of EN24 Steel for Shrink-Fit Tool Holders for CNC Milling Machines
Matija Bauer
; Sveučilište Jurja Dobrile u Puli, Tehnički fakultet, Pula, Hrvatska
Damir Karabaić
orcid.org/0000-0001-6151-2235
; Sveučilište Jurja Dobrile u Puli, Tehnički fakultet, Pula, Hrvatska
*
Marko Kršulja
orcid.org/0000-0003-0823-8083
; Sveučilište Jurja Dobrile u Puli, Tehnički fakultet, Pula, Hrvatska
Matija Jurcan
orcid.org/0009-0006-2883-4084
; Sveučilište Jurja Dobrile u Puli, Tehnički fakultet, Pula, Hrvatska
* Autor za dopisivanje.
Sažetak
This paper investigates the possibility of using an alternative steel material EN 10250 36CrNiMo4/1.6511 (EN24 steel) in the production of shrink-fit tool holders for CNC machining centres. The alternative material has different thermal properties compared to the standard manufacturing material for tool holders (H13 steel), while the mechanical properties are similar. The structural and thermal stress finite element analysis together with the fatigue analysis are performed on a designed model of a tool holder with a shrink-fit clamping head and standard interface for required limiting working conditions. The application of the alternative material combined with the production process optimisation results in reductions in costs and time of producing tool holders, while adhering to all limitations and parameters prescribed by the corresponding standard. Due to higher thermal stresses during tool changes, the usage of an alternative material would be justified for processes where one type of tool is frequently used and the tool lifespan is long.
Ključne riječi
milling machine; shrink-fit tool holder; EN24 steel; finite element analysis
Hrčak ID:
312876
URI
Datum izdavanja:
1.1.2024.
Posjeta: 1.070 *