SPF

Superplastic forming (SPF) is a special metalworking process that allows sheets of metal alloys such as titanium to be stretched to lengths over ten times that of conventional alloys without degrading the material properties of the metal.
The process temperature is around 1000°C with gas pressure close to 20 bars. Metal forming of this nature is most often used in the aerospace industry, but also has applications for performance sports equipment, as well as in the energy, defense, and medical sectors.