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|Title:||Study on shrinkage behaviour of direct laser sintering metallic powder|
Direct laser sintering
|Citation:||Zhu, H.H., Lu, L., Fuh, J.Y.H. (2006). Study on shrinkage behaviour of direct laser sintering metallic powder. Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 220 (2) : 183-190. ScholarBank@NUS Repository. https://doi.org/10.1243/095440505X32995|
|Abstract:||The shrinkage behaviour caused in the direct laser sintering of Cu-based metal powder has been investigated. Shrinkages were observed to be anisotropic and the largest was found in the z (height) direction. The in-plane (x, y) dimensional changes are caused by a combination of three sources: thermal shrinkage, sintering shrinkage, and expansion arising because the metal particles fall during the sintering. A hypothetical two-dimensional model is proposed to explain the expansion phenomenon and the particle size ratio based on this model is also deduced. The experimental results agree well with the hypothesis. © IMechE 2006.|
|Source Title:||Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture|
|Appears in Collections:||Staff Publications|
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