SIREN
Stability Islands: Performance Revolution in Machining
| Coordinatore | BUDAPESTI MUSZAKI ES GAZDASAGTUDOMANYI EGYETEM
Spiacenti, non ci sono informazioni su questo coordinatore. Contattare Fabio per maggiori infomrazioni, grazie. |
| Nazionalità Coordinatore | Hungary [HU] |
| Totale costo | 2˙573˙000 € |
| EC contributo | 2˙573˙000 € |
| Programma | FP7-IDEAS-ERC
Specific programme: "Ideas" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013) |
| Code Call | ERC-2013-ADG |
| Funding Scheme | ERC-AG |
| Anno di inizio | 2014 |
| Periodo (anno-mese-giorno) | 2014-03-01 - 2019-02-28 |
Partecipanti
| # | ||||
|---|---|---|---|---|
| 1 |
BUDAPESTI MUSZAKI ES GAZDASAGTUDOMANYI EGYETEM
Organization address
address: MUEGYETEM RAKPART 3 contact info |
HU (BUDAPEST) | hostInstitution | 2˙573˙000.00 |
| 2 |
BUDAPESTI MUSZAKI ES GAZDASAGTUDOMANYI EGYETEM
Organization address
address: MUEGYETEM RAKPART 3 contact info |
HU (BUDAPEST) | hostInstitution | 2˙573˙000.00 |
Mappa
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Obiettivo del progetto (Objective)
'Cutting went through a revolution in the 1990s when high-speed milling (HSM) was introduced: the sculpture-like workpieces produced with high precision and efficiency resulted in one order of magnitude less parts in cars/aircrafts, which kept this traditional technology competitive at the turn of the century. This has been followed by an incremental development when not just the cutting speeds, but depths of cut and feed rates are pushed to limits, too. The limits are where harmful vibrations occur. Cutting is subject to a special one called chatter, which is originated in a time delay: the cutting edge interferes with its own past oscillation recorded on the wavy surface cut of the workpiece. In 1907, the 3rd president of ASME, Taylor wrote: “Chatter is the most obscure and delicate of all problems facing the machinist”. In spite of the development of the theory of delay-differential equations and nonlinear dynamics, Taylor’s statement remained valid 100 years later when HSM appeared together with a new kind of chatter. The applicant has been among those leading researchers who predicted these phenomena; the experimental/numerical techniques developed in his group are widely used to find parameters, e.g. where milling tools with serrated edges and/or with varying helix angles are advantageous. The SIREN project aims to find isolated parameter islands with 3-5 times increased cutting efficiency. The work-packages correspond to points of high risk: (1) validated, delay-based nonlinear modelling of the dynamic contact problem between chip and tool; (2) fixation of the tool that is compatible with a dynamically reliable mathematical model of the contact between tool and tool-holder; (3) up-to-date dynamic modelling of the spindle at varying speeds. High risk originates in the attempt of using distributed delay models, but high gain is expected with robust use of parameter islands where technology reaches a breakthrough in cutting efficiency for the 21st century.'