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Influences of steady and cyclic die rotation on the compression of aluminium
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 processingVolume
483-484Pagination
444 - 447Publisher
ElsevierLocation
Amsterdam, NetherlandsPublisher DOI
ISSN
0921-5093eISSN
1873-4936Language
engPublication classification
C1 Refereed article in a scholarly journalCopyright notice
2008, ElsevierUsage metrics
Keywords
aluminiumfatiguecompression testdisplacement(deformation)angular velocitycyclic loadScience & TechnologyTechnologyNanoscience & NanotechnologyMaterials Science, MultidisciplinaryMetallurgy & Metallurgical EngineeringScience & Technology - Other TopicsMaterials Sciencecompressionrotating platencyclic rotationrotating frequencyPLASTIC-DEFORMATIONMechanical Engineering
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