Numerical study of crucial parameters in tilt casting for titanium aluminides
Numerical modeling of the tilt casting process for TiAl alloys was investigated to achieve a tranquil mould filling and TiAl castings free of defects. Titanium alloys are very reactive in molten state, so they are widely melted in cold crucible, e.g. the Induction Skull Melting (ISM) furnace. Then...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Foundry Journal Agency
2011-08-01
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| Series: | China Foundry |
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| Online Access: | http://www.foundryworld.com/uploadfile/2011083135735413.pdf |
| _version_ | 1818939816507604992 |
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| author | Hong Wang G. Djambazov K. A. Pericleous |
| author_facet | Hong Wang G. Djambazov K. A. Pericleous |
| author_sort | Hong Wang |
| collection | DOAJ |
| description | Numerical modeling of the tilt casting process for TiAl alloys was investigated to achieve a tranquil mould filling and TiAl castings free of defects. Titanium alloys are very reactive in molten state, so they are widely melted in cold crucible, e.g. the Induction Skull Melting (ISM) furnace. Then the crucible holding the molten metal together with the mould is rotated to transfer the metal into the mould — ISM+ tilt casting. This paper emphasizes the effect of crucial parameters on mould filling and solidification of the castings during tilt casting. All crucial parameters, such as rotation rate, rotation profile, venting, initial mould temperature, casting orientation, feeder design, change of radius in 'T' junction and mould insulation have been discussed using numerical modeling data. Simulations were performed using a 3D CFD code PHYSICA implemented with front tracking, heat transfer algorithms and a turbulence model (which accounts for an advancing solid front). |
| first_indexed | 2024-12-20T06:29:46Z |
| format | Article |
| id | doaj.art-c1711caa0c18494db3d783a0fb597071 |
| institution | Directory Open Access Journal |
| issn | 1672-6421 |
| language | English |
| last_indexed | 2024-12-20T06:29:46Z |
| publishDate | 2011-08-01 |
| publisher | Foundry Journal Agency |
| record_format | Article |
| series | China Foundry |
| spelling | doaj.art-c1711caa0c18494db3d783a0fb5970712022-12-21T19:50:12ZengFoundry Journal AgencyChina Foundry1672-64212011-08-0183274281Numerical study of crucial parameters in tilt casting for titanium aluminidesHong WangG. DjambazovK. A. PericleousNumerical modeling of the tilt casting process for TiAl alloys was investigated to achieve a tranquil mould filling and TiAl castings free of defects. Titanium alloys are very reactive in molten state, so they are widely melted in cold crucible, e.g. the Induction Skull Melting (ISM) furnace. Then the crucible holding the molten metal together with the mould is rotated to transfer the metal into the mould — ISM+ tilt casting. This paper emphasizes the effect of crucial parameters on mould filling and solidification of the castings during tilt casting. All crucial parameters, such as rotation rate, rotation profile, venting, initial mould temperature, casting orientation, feeder design, change of radius in 'T' junction and mould insulation have been discussed using numerical modeling data. Simulations were performed using a 3D CFD code PHYSICA implemented with front tracking, heat transfer algorithms and a turbulence model (which accounts for an advancing solid front).http://www.foundryworld.com/uploadfile/2011083135735413.pdfcrucial parametersnumerical modelingtilt castingTiAl alloy |
| spellingShingle | Hong Wang G. Djambazov K. A. Pericleous Numerical study of crucial parameters in tilt casting for titanium aluminides China Foundry crucial parameters numerical modeling tilt casting TiAl alloy |
| title | Numerical study of crucial parameters in tilt casting for titanium aluminides |
| title_full | Numerical study of crucial parameters in tilt casting for titanium aluminides |
| title_fullStr | Numerical study of crucial parameters in tilt casting for titanium aluminides |
| title_full_unstemmed | Numerical study of crucial parameters in tilt casting for titanium aluminides |
| title_short | Numerical study of crucial parameters in tilt casting for titanium aluminides |
| title_sort | numerical study of crucial parameters in tilt casting for titanium aluminides |
| topic | crucial parameters numerical modeling tilt casting TiAl alloy |
| url | http://www.foundryworld.com/uploadfile/2011083135735413.pdf |
| work_keys_str_mv | AT hongwang numericalstudyofcrucialparametersintiltcastingfortitaniumaluminides AT gdjambazov numericalstudyofcrucialparametersintiltcastingfortitaniumaluminides AT kapericleous numericalstudyofcrucialparametersintiltcastingfortitaniumaluminides |