Hydroforming a way of shaping material such as aluminium or ultralight steel. The metal is pushed into shape using fluid pressure. For example, to produce components for car bodies, steel tubes are placed inside a mould and high pressure applied in the tube which pushes the metal into the exact shape required. Hydroforming a component in this way means that several different operations such as stamping and welding are no longer required. Hydroforming is used where there is demand for lower weight with high strength. It is used in the manufacture of top-of-the-range sports cars and motorbikes, such as Harley Davidsons. is also used in It the aerospace industryto produce panels for aircraft.