Effect of applying air pressure on gas porosity in lost foam casting of al-si alloy
The paper presents the result of investigation on aluminum-silicon (LM6) alloy cast using pressurized lost foam casting process. The study investigated the effect of pressure and sand size on porosity of the casting produced. Air pressure of 1, 2, 3 and 4 bars was applied on the solidifying alloy po...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Conference or Workshop Item |
| Published: |
2013
|
| Subjects: | |
| Online Access: | http://eprints.utm.my/id/eprint/51006/ http://dx.doi.org/10.4028/www.scientific.net/AMR.628.150 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| id |
my.utm.51006 |
|---|---|
| record_format |
eprints |
| spelling |
my.utm.510062017-08-15T01:49:21Z http://eprints.utm.my/id/eprint/51006/ Effect of applying air pressure on gas porosity in lost foam casting of al-si alloy Niakan, A. Idris, M. H. Ourdjini, A. Karimian, M. TJ Mechanical engineering and machinery The paper presents the result of investigation on aluminum-silicon (LM6) alloy cast using pressurized lost foam casting process. The study investigated the effect of pressure and sand size on porosity of the casting produced. Air pressure of 1, 2, 3 and 4 bars was applied on the solidifying alloy poured in mould of sand sizes 16-30, 40-60, 60-100 (AFS). The porosities of casting were measured using optical microscope which was equipped with image analyzer. For porosity of castings, all surfaces of solidified castings were captured by digital camera for better observation. The results show that applying pressure during solidification of the LM6 alloy has significant influence on casting porosity of the alloy. By increasing the applied pressure, the porosity percentage based on gas porosity decreased when pressure was applied. Consequently, the removal rate of gas porosity improved by increasing the sand size to finer size 60-100 (AFS), so there is less gas porosity in samples. Besides, rising air pressure lead to fulfilling of molten which improves the casting porosity. 2013 Conference or Workshop Item PeerReviewed Niakan, A. and Idris, M. H. and Ourdjini, A. and Karimian, M. (2013) Effect of applying air pressure on gas porosity in lost foam casting of al-si alloy. In: Advanced Materials Research. http://dx.doi.org/10.4028/www.scientific.net/AMR.628.150 |
| institution |
Universiti Teknologi Malaysia |
| building |
UTM Library |
| collection |
Institutional Repository |
| continent |
Asia |
| country |
Malaysia |
| content_provider |
Universiti Teknologi Malaysia |
| content_source |
UTM Institutional Repository |
| url_provider |
http://eprints.utm.my/ |
| topic |
TJ Mechanical engineering and machinery |
| spellingShingle |
TJ Mechanical engineering and machinery Niakan, A. Idris, M. H. Ourdjini, A. Karimian, M. Effect of applying air pressure on gas porosity in lost foam casting of al-si alloy |
| description |
The paper presents the result of investigation on aluminum-silicon (LM6) alloy cast using pressurized lost foam casting process. The study investigated the effect of pressure and sand size on porosity of the casting produced. Air pressure of 1, 2, 3 and 4 bars was applied on the solidifying alloy poured in mould of sand sizes 16-30, 40-60, 60-100 (AFS). The porosities of casting were measured using optical microscope which was equipped with image analyzer. For porosity of castings, all surfaces of solidified castings were captured by digital camera for better observation. The results show that applying pressure during solidification of the LM6 alloy has significant influence on casting porosity of the alloy. By increasing the applied pressure, the porosity percentage based on gas porosity decreased when pressure was applied. Consequently, the removal rate of gas porosity improved by increasing the sand size to finer size 60-100 (AFS), so there is less gas porosity in samples. Besides, rising air pressure lead to fulfilling of molten which improves the casting porosity. |
| format |
Conference or Workshop Item |
| author |
Niakan, A. Idris, M. H. Ourdjini, A. Karimian, M. |
| author_facet |
Niakan, A. Idris, M. H. Ourdjini, A. Karimian, M. |
| author_sort |
Niakan, A. |
| title |
Effect of applying air pressure on gas porosity in lost foam casting of al-si alloy |
| title_short |
Effect of applying air pressure on gas porosity in lost foam casting of al-si alloy |
| title_full |
Effect of applying air pressure on gas porosity in lost foam casting of al-si alloy |
| title_fullStr |
Effect of applying air pressure on gas porosity in lost foam casting of al-si alloy |
| title_full_unstemmed |
Effect of applying air pressure on gas porosity in lost foam casting of al-si alloy |
| title_sort |
effect of applying air pressure on gas porosity in lost foam casting of al-si alloy |
| publishDate |
2013 |
| url |
http://eprints.utm.my/id/eprint/51006/ http://dx.doi.org/10.4028/www.scientific.net/AMR.628.150 |
| _version_ |
1643652911199158272 |
| score |
13.211869 |