期刊
INTERNATIONAL JOURNAL OF MATERIAL FORMING
卷 3, 期 -, 页码 367-370出版社
SPRINGER FRANCE
DOI: 10.1007/s12289-010-0783-3
关键词
Aluminum Extrusion; Isothermal Extrusion; Flow Balance; Temperature Evolution; FEM
类别
资金
- Norsk Hydro ASA
- Research Council of Norway (NFR) through the project ProExtru
The focus in this work is isothermal extrusion of aluminum. Transient finite element simulations of the extrusion process have been performed over 20 press cycles using the 3D finite element software Altair HyperXtrude 9.0 and the 2D finite element software ALMA2 pi. The process parameters considered are front billet temperature, initial billet temperature gradient (taper), ram speed and container cooling rate. The press cycle has been divided into three phases: start, middle and the end of the ram stroke. The best combinations of process parameters for isothermal extrusion has been found and represented as so called isothermal maps for each phase of the press cycle.
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