Ab. Lopes et al., INJECTION FORGING OF TUBES - RESULTS OF MACROSCOPIC ANALYSIS AND COMPARISON WITH MICROSTRUCTURAL OBSERVATIONS, Materials science & engineering. A, Structural materials: properties, microstructure and processing, 248(1-2), 1998, pp. 276-286
The present work deals with double-sided injection forging of commerci
al purity aluminium tubes. The goal is to monitor and understand the s
trengthening mechanisms that may influence the process, by analysing t
he evolution of the dislocation microstructures. Comparison between th
e mechanical macroscopic results obtained from numerical simulations a
nd experimental testing with the microstructural observations show tha
t the workability limits are related to flaws generated as a result of
a dead metal zone formation. (C) 1998 Elsevier Science S.A. All right
s reserved.