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Experimental and modelling on influence of processing parameters in powder HVC
In: Australian Journal of Mechanical Engineering, Jg. 15 (2017-09-02), Heft 3, S. 182-186
Online
serialPeriodical
Zugriff:
AbstractIron powder was pressed by high-velocity compaction technology. The influence of impact velocity on green density was studied. Cross-section images of green compacts were observed by scanning electron microscope (SEM). Using numerical simulation, the dynamic analysis of impact processing was performed. It shows that FEM can get the accordant result with experimental data. Both analyses display that there are three stages with different increasing rates of density. Larger impact velocity can result in higher green density. However, the growth rate is not constant, for example, the density increases rapidly when impact velocity is less than 8 m/s. Besides the comparability of experimental and numerical results, microstructure simulation was also studied. It shows that discrete element modelling can simulate the powder flow processing exactly. Both the flow patterns of macrostructure and microstructure show the friction is an important influence factor of HVC and the friction should be controlled effectively.
Titel: |
Experimental and modelling on influence of processing parameters in powder HVC
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Autor/in / Beteiligte Person: | Yang, Xia |
Link: | |
Zeitschrift: | Australian Journal of Mechanical Engineering, Jg. 15 (2017-09-02), Heft 3, S. 182-186 |
Veröffentlichung: | 2017 |
Medientyp: | serialPeriodical |
ISSN: | 1448-4846 (print) ; 2204-2253 (print) |
DOI: | 10.1080/14484846.2016.1233618 |
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