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Nonlinear dynamics analysis of multi-cutting wire electrode in WEDM-HS subjected to working fluid considering the effect of debris.
- Source :
-
Journal of Mechanical Science & Technology . Dec2013, Vol. 27 Issue 12, p3595-3605. 11p. - Publication Year :
- 2013
-
Abstract
- A reasonable dielectric fluid velocity and better exclusion of debris are very important to obtain a stable machining performance in multi-cutting of WEDM-HS. We investigated the dynamic characteristics of multi-cutting wire electrode in WEDM-HS subjected to working fluid considering the effect of debris. First, a fluid-solid coupling nonlinear vibration model is derived by analyzing the forces acting on the multi-cutting wire which locate in the dielectric fluid. The additional axial force arising from the transverse vibration of the multi-cutting wire is considered as a nonlinear term in the model. Considering that the debris accumulation in discharge gap severely influences the stability of multi-cutting wire electrode, the relationship between the debris volume concentration and debris-working fluid two-phase flow drag coefficient is obtained using the Einstein two-phase flow viscosity theory. Finally, the influences of several parameters on the multi-cutting wire displacement are discussed in detail. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 1738494X
- Volume :
- 27
- Issue :
- 12
- Database :
- Academic Search Index
- Journal :
- Journal of Mechanical Science & Technology
- Publication Type :
- Academic Journal
- Accession number :
- 93379317
- Full Text :
- https://doi.org/10.1007/s12206-013-0902-4