Characterization of the Parameters of Sand Moulds in Compaction Process by Use of the Industrial Computer Tomography (ICT)

Archives of Metallurgy and Materials

A. Kadauw¹ 

[1] TECHNICAL UNIVERSITY BERGAKADEMIE FREIBERG, AGRICOLA 1, 09596 FREIBERG, GERMANY;

关键词: Keywords: moulding sand;    thermal destruction;    bending strength;    hot-distortion;   

DOI  :  10.2478/amm-2014-0189

学科分类：金属与冶金

来源: Akademia Gorniczo-Hutnicza im. Stanislawa Staszica / University of Mining and Metallurgy

【 摘 要 】

One main problem in moulding is the proper characterization of the local density of the mould, the best without its destroying, for assessment the quality of the mould and to compare results of compaction modeling with experimental results. Industrial computer tomography (ICT) is a technique that allows the non-destructive and contact-free visualization and characterization of the internal and external parts of physical objects including also sand moulds. It is possible to apply ICT technique for the specific research presented here. Moulding sand compaction plays an important role for the quality of the mould and as the consequence for the quality of manufactured casting. The required quality of the castings can be achieved by selecting optimum manufacturing process parameters. The determination of these parameters is often carried out by trial-and-error-method, which is expensive and time consuming. To improve the understanding of the influence of various parameters, mathematical modeling of the compaction processes using numerical solutions was performed. Theoretical results of the compaction simulations have then been compared with practical results of mould compaction obtained by ICT. Itwasfound that simulation results agree well with data from computer tomography and provide insight into the spatial distribution of the density of sand moulds under industrial condition.

【 授权许可】

Unknown