Premium
Modellierung des thermischen Verhaltens von superplastischen Umformwerkzeugen
Author(s) -
Velay V.,
Cutard T.,
Guegan N.
Publication year - 2012
Publication title -
materialwissenschaft und werkstofftechnik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.285
H-Index - 38
eISSN - 1521-4052
pISSN - 0933-5137
DOI - 10.1002/mawe.201200045
Subject(s) - superplasticity , materials science , ceramic , forming processes , thermal , mechanical engineering , refractory (planetary science) , metallurgy , composite material , engineering , alloy , thermodynamics , physics
High‐temperature operational conditions of super plastic forming (SPF) tools induce very complex thermo‐mechanical loadings responsible to their failure. Various materials can be used to manufacture forming tools: ceramic, refractory castable or heat resistant steel. In this paper, an experimental and numerical analysis is performed in order to characterise the environmental loadings undergone by the tool whatever the considered material. This investigation allows to lead a thermal calculation. It is a preliminary and essential stage to perform the complete thermo‐mechanical calculation in order to assess accurate stress levels, or plastic strain occurring during the forming process.