Influence of moisture in the Gypsum moulds made by 3D Printing

被引：13
|
作者：
Bobby, S. S. [1 ]
Singamneni, Sarat [1 ]
机构：
[1] AUT Univ, Sch Engn, Auckland 1010, New Zealand
来源：
12TH GLOBAL CONGRESS ON MANUFACTURING AND MANAGEMENT (GCMM - 2014) | 2014年 / 97卷
关键词：
Hymihydrate; Dihydrate; 3D Printing; L9 Orthogonal Array; Box-Behnken DOE; Green Compressive Strength; CALCIUM-SULFATE HEMIHYDRATE; HYDRATION; PLASTER; CRYSTALLIZATION; ADDITIVES; STRENGTH;
D O I：
10.1016/j.proeng.2014.12.312
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The process of rehydration of calcium sulphate hemihydrate (CaSO4 center dot 0.5H(2)O) to the crystallization of gypsum which is chemically known as calcium sulphate dihydrate (CaSO4 center dot 2H(2)O) is based on the amount of water added back. Plaster moulds are used to produce both ferrous and non-ferrous castings through investment casting process using slip casting techniques conventionally. The percentage water influences the properties of moulds and castings. Taking advantage of the rapid casting process a study was conducted to measure the effect of moisture in the moulds produced by three dimensional printing and it was found that the percentage moisture is directly proportional to the green compressive strength. L9 orthogonal array and the Box-Behnken design of experiments were used to study the effect of the percentage moisture in the mould. (C) 2014 Published by Elsevier Ltd.
引用
收藏
页码：1618 / 1625
页数：8
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