Controlled cooling of an aluminum alloy casting based on 3D printed rib reinforced shell mold
3D printing technology has been used for sand molding and core printing, but they simply substitute the traditional molding and core making method without changing the shape or size of the sand mold (core) and their dense structure. In this study, a new type of hollow mold based on 3D printing is pr...
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doaj-57ed65d6cdb54c459b4b4154e0d4fe3d2020-11-24T21:25:02ZengFoundry Journal AgencyChina Foundry1672-64211672-64212018-05-0115321021510.1007/s41230-018-7252-xControlled cooling of an aluminum alloy casting based on 3D printed rib reinforced shell moldHao-long Shangguan0Jin-wu Kang1 Ji-hao Yi 2School of Materials Science and Engineering, Key Laboratory for Advanced Materials Processing Technology, Tsinghua University, Beijing 100084, ChinaSchool of Materials Science and Engineering, Key Laboratory for Advanced Materials Processing Technology, Tsinghua University, Beijing 100084, ChinaSchool of Materials Science and Engineering, Key Laboratory for Advanced Materials Processing Technology, Tsinghua University, Beijing 100084, China3D printing technology has been used for sand molding and core printing, but they simply substitute the traditional molding and core making method without changing the shape or size of the sand mold (core) and their dense structure. In this study, a new type of hollow mold based on 3D printing is presented. The new type of mold is a rib reinforced thickness-varying shell mold. This mold design can realize the controlled cooling of castings, i.e., different cooling rates at different areas, and improve the temperature uniformity of a casting after its solidification. Therefore, the performance of castings can be improved and their residual stress and deformation can be reduced. This kind of new mold was applied to a stress frame of A356 aluminum alloy. The 3D printed rib reinforced thickness-varying shell mold was compared with the traditional dense mold, and the castings obtained by these two kinds of molds were also compared. The experimental results showed that the rib reinforced shell mold increased the cooling rate of the casting by 30%, tensile strength by 17%, yield strength by 11%, elongation by 67%, and decreased its deformation by 43%, while sand consumption was greatly reduced by 90%.http://ff.foundryworld.com/uploadfile/2018061338115469.pdfrib reinforced thickness-varying shell mold3D printingcastingsolidificationcooling |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Hao-long Shangguan Jin-wu Kang Ji-hao Yi |
spellingShingle |
Hao-long Shangguan Jin-wu Kang Ji-hao Yi Controlled cooling of an aluminum alloy casting based on 3D printed rib reinforced shell mold China Foundry rib reinforced thickness-varying shell mold 3D printing casting solidification cooling |
author_facet |
Hao-long Shangguan Jin-wu Kang Ji-hao Yi |
author_sort |
Hao-long Shangguan |
title |
Controlled cooling of an aluminum alloy casting based on 3D printed rib reinforced shell mold |
title_short |
Controlled cooling of an aluminum alloy casting based on 3D printed rib reinforced shell mold |
title_full |
Controlled cooling of an aluminum alloy casting based on 3D printed rib reinforced shell mold |
title_fullStr |
Controlled cooling of an aluminum alloy casting based on 3D printed rib reinforced shell mold |
title_full_unstemmed |
Controlled cooling of an aluminum alloy casting based on 3D printed rib reinforced shell mold |
title_sort |
controlled cooling of an aluminum alloy casting based on 3d printed rib reinforced shell mold |
publisher |
Foundry Journal Agency |
series |
China Foundry |
issn |
1672-6421 1672-6421 |
publishDate |
2018-05-01 |
description |
3D printing technology has been used for sand molding and core printing, but they simply substitute the traditional molding and core making method without changing the shape or size of the sand mold (core) and their dense structure. In this study, a new type of hollow mold based on 3D printing is presented. The new type of mold is a rib reinforced thickness-varying shell mold. This mold design can realize the controlled cooling of castings, i.e., different cooling rates at different areas, and improve the temperature uniformity of a casting after its solidification. Therefore, the performance of castings can be improved and their residual stress and deformation can be reduced. This kind of new mold was applied to a stress frame of A356 aluminum alloy. The 3D printed rib reinforced thickness-varying shell mold was compared with the traditional dense mold, and the castings obtained by these two kinds of molds were also compared. The experimental results showed that the rib reinforced shell mold increased the cooling rate of the casting by 30%, tensile strength by 17%, yield strength by 11%, elongation by 67%, and decreased its deformation by 43%, while sand consumption was greatly reduced by 90%. |
topic |
rib reinforced thickness-varying shell mold 3D printing casting solidification cooling |
url |
http://ff.foundryworld.com/uploadfile/2018061338115469.pdf |
work_keys_str_mv |
AT haolongshangguan controlledcoolingofanaluminumalloycastingbasedon3dprintedribreinforcedshellmold AT jinwukang controlledcoolingofanaluminumalloycastingbasedon3dprintedribreinforcedshellmold AT jihaoyi controlledcoolingofanaluminumalloycastingbasedon3dprintedribreinforcedshellmold |
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1725985216703496192 |