(from the article `materials science`) ...sheet is transferred into a forming system, where it is forced to conform to a tool, with a shape that matches the finished part. After forming, ... Found on http://www.britannica.com/eb/a-z/s/171
A process of forming panels and cowls of large curvature by stretching sheet over a form of the desired shape. This method is more rapid than hammering and beating. Found on https://www.unifiedalloys.com/resources/glossary/