High-Velocity Compaction of Aluminum Powder by Gas Detonation Forming Technique

محورهای موضوعی : metal forming

Tohid Mirzababaie Mostofi ¹ , Mostafa Sayah Badkhor ² , Hashem Babaei ³

1 - Faculty of Mechanical Engineering, University of Eyvanekey, Semnan, Iran
2 - Faculty of Mechanical Engineering, University of Eyvanekey, Semnan, Iran
3 - Faculty of Mechanical Engineering, University of Guilan, Rasht, Iran

تاریخ دریافت : 1398/03/23 تاریخ پذیرش : 1398/08/19 تاریخ انتشار : 1398/12/11

کلید واژه: High-Velocity Compaction, Aluminum Powder, GDF, Neural network,

چکیده مقاله :

In this paper, a large-scale experimental study has been conducted in order to evaluate the high-velocity compaction of aluminum powder using Gas Detonation Forming (GDF) processing technique. In this series of experiments, the effect of the distribution of grain particle size, initial powder mass, and loading conditions on green density and strength of compacted products were thoroughly studied. The maximum relative green density and green strength of 97.6% and 17.9% were achieved. Group Method of Data Handling (GMDH)-type neural network in conjunction with Singular Value Decomposition (SVD) method was exerted to model the high-velocity compaction process of aluminum powder. The main objective of this idea is to demonstrate how two characteristics of the high-velocity compaction, namely, the relative green density and strength of products vary with the changing of significant parameters, involved in GDF processing technique.

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