This paper presents a new procedure to evaluate the global heat transfer coefficient in orthogonal cutting. The knowledge of the actual heat transfer conditions is a fundamental issue as far as the life, tool wear and tool substitution interval are regarded. More in detail, an Arbitrary Lagrangian-Eulerian approach was utilised to model orthogonal cutting process and the numerical simulations were validated by making experimental tests for identifying cutting forces and internal tool temperatures. A mild steel was cut utilising both an uncoated (WC) and a coated (TiN) tool. On the basis of both experimental and simulative data, a consistent model of the global heat transfer coefficient as function of the local pressure and temperature at the tool-workpiece interface was developed.
|Data di pubblicazione:||2007|
|Titolo:||ALE simulation of orthogonal cutting: a new approach to model heat transfer phenomena at the tool-chip interface|
|Autori:||Ceretti, E.; Filice, L.; Umbrello, D.; Micari, F.|
|Tipologia:||Articolo su rivista|
|Citazione:||Ceretti, E., Filice, L., Umbrello, D., & Micari, F. (2007). ALE simulation of orthogonal cutting: a new approach to model heat transfer phenomena at the tool-chip interface. CIRP ANNALS, 56/1, 69-72.|
|Digital Object Identifier (DOI):||10.1016/j.cirp.2007.05.019|
|Appare nelle tipologie:||01 - Articolo su rivista|