Improving formability in SPIF processes through high speed rotating tool: experimental and numerical analysis
- Autori: Buffa, G.; Campanella, D.; Mirabile, R.; Fratini, L.
- Anno di pubblicazione: 2013
- Tipologia: Capitolo o Saggio (Capitolo o saggio)
- Parole Chiave: Incremental forming, aluminum alloys, FEM
- OA Link: http://hdl.handle.net/10447/71283
Single-point incremental forming (SPIF) is a quite new sheet-forming process which offers the possibility to deform complex parts without dedicated dies using a single-point tool and a standard three-axis CNC machine. Although the process mechanics enables higher strains with respect to traditional sheet-forming processes, research has been focused on further increasing the maximum forming angle. In the paper, a new approach is used to enhance the material formability through a localized sheet heating as a consequence of the friction work caused by high speed rotating tool. Numerical simulation was utilized to relate the effect of temperature with the main field variables distribution in the sheet.