D. Li, RTI International Metals, Inc., Niles, OH; E. Crist, N. Minakawa, O. Yu, RMI Titanium Company, Niles, OH
Computer modeling programs have been used to optimize the extrusion processes. First, an induction heating modeling program has been developed to predict the temperature profile of billets during induction heating and soaking processes. With the help of this program, induction heating equipment is capable of achieving desired temperature profile and reducing variation between pieces with different diameters. Finite element modeling software (DEFORM) is used to study the metal flow during extrusion to achieve balanced flow at the outlet. It is also used to evaluate different die designs with considerable savings of time and expense because the amount of trial-and-error testing is reduced.
Summary: Computer modeling programs have been used to optimize the extrusion processes. First, an induction heating modeling program has been developed to predict the temperature profile of billets during induction heating and soaking processes. With the help of this program, induction heating equipment is capable of achieving desired temperature profile and reducing variation between pieces with different diameters. Finite element modeling software (DEFORM) is used to study the metal flow during extrusion to achieve balanced flow at the outlet. It is also used to evaluate different die designs with considerable savings of time and expense because the amount of trial-and-error testing is reduced.
