Numerical simulation of the superplastic forming of dental and medical prostheses.

ABSTRACT

A relatively recent development in prostheses manufacture is the use of superplastic forming technology formerly associated with industrial applications such as aerospace components. This paper considers the finite element incremental flow formulation for the simulation of the forming of thin and moderately thick titanium alloy sheet dental and medical prostheses and, in particular, the determination of the pressure-time cycle. Issues concerning material characteristics are discussed, and the process is illustrated by a number of examples. The application of finite element simulation in this context is ongoing, nevertheless interim conclusions are drawn and future directions for research are identified.