“The Different Kinds of Line Folds.” Ganoskin Jewelry Making Resources, Brain Press Publications, October 3rd, 2016, https://www.ganoksin.com/article/different-kinds-line-folds/
Charles Lewton-Brain invented Fold Forming. Fold Forming is a way of forming sheet metal quickly into 3D organic shapes as well as textures. This method uses sheets of metal without the need for soldering. Basically, you use sheet metal, fold it, work it and then unfold it.
It was developed in the 1980s. It emphasizes forming using the metals characteristics. It is about following what the metal likes to do as opposed to forcing form upon the metal, keeping in mind the plasticity ductility and elasticity of the metal.
You can fold form with most metals like aluminum, niobium, titanium, gold, silver, platinum and steel.