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Material flow in die forging
Author(s) -
Lehmann Gunter
Publication year - 1991
Publication title -
steel research
Language(s) - English
Resource type - Journals
eISSN - 1869-344X
pISSN - 0177-4832
DOI - 10.1002/srin.199101271
Subject(s) - forging , die (integrated circuit) , deformation (meteorology) , material flow , flow stress , materials science , finite element method , compression (physics) , flow (mathematics) , strain rate , plane stress , mechanical engineering , plane (geometry) , structural engineering , metallurgy , composite material , engineering , mechanics , geometry , mathematics , physics , ecology , biology
Because of steadily increasing demands on die forging industry the calculation of material flow will be of prime importance in future. The paper presents results of investigations of die‐forged specimens with internal scans of the symetric plane. Using a visioplastic mathematic model, the distribution of velocity, strain, strain rate, temperature, and effective stress is calculated from the measured scanning deformation. Of special interest are the results of temperature distribution in the forged part which depends on the geometrical properties of the die. These results may serve the checking of FEM calculations performed on cylindrical specimens in case of compression.