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Friction changes during compression tests using tool rotation technique
journal contribution
posted on 2004-10-15, 00:00 authored by X Ma, Matthew BarnettMatthew Barnett, Y KimA compression test with rotating dies was employed to estimate the friction factor between aluminum samples and steel tooling during large plastic deformations. A cylindrical workpiece was compressed under dry and cold conditions. The magnitudes of torque and normal force were measured and
the average friction factor was calculated using the Coulomb friction law. It was found that under certain conditions the friction increased with increasing angular velocity of the die. This finding led to the conclusion that the choice of die rotation speed is important in interpreting the results from the twist compression test.
the average friction factor was calculated using the Coulomb friction law. It was found that under certain conditions the friction increased with increasing angular velocity of the die. This finding led to the conclusion that the choice of die rotation speed is important in interpreting the results from the twist compression test.
History
Journal
Key engineering materialsVolume
274Issue
276Pagination
895 - 900Publisher
Trans Tech PublicationsLocation
Stafa-Zurich, SwitzerlandISSN
1013-9826Language
engPublication classification
C1 Refereed article in a scholarly journalCopyright notice
2004, Trans Tech PublicationsUsage metrics
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