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Influences of steady and cyclic die rotation on the compression of aluminium

journal contribution
posted on 2008-01-01, 00:00 authored by X Ma, Matthew BarnettMatthew Barnett
A series of experiments are reported for compression of an aluminum cylinder with monotonic and cyclic die rotation. When the die is monotonically rotated, a higher angular velocity or a lower compression speed of the tool leads to a greater load reduction in comparison of that seen with a stationary die. The test results also show that cyclic die rotation causes a cyclic fluctuation in the load-displacement curve. During the die deceleration phase, the compression load increases until it reaches the level obtained in conventional compression with stationary dies. However, the compression load is observed to reduce to levels lower than those obtained in monotonic rotating compression tests during the die acceleration phase. The frequency of rotating direction change seems to affect the position of load peaks only, not the amplitude of the peaks.

History

Journal

Materials science and engineering A: structural materials: properties, microstructures and processing

Volume

483-484

Pagination

444 - 447

Publisher

Elsevier

Location

Amsterdam, Netherlands

ISSN

0921-5093

eISSN

1873-4936

Language

eng

Publication classification

C1 Refereed article in a scholarly journal

Copyright notice

2008, Elsevier