Steel piping with a flattened and oval appearance, flat oval steel pipe is often utilized when there is little space allowance. This type of pipe is utilized heavily in the automotive/aeronautic industry, with production being achieved through roll forming, welding and extrusion methods.
Rolling through a set of rollers, sheets of metal are transformed into small-diameter pipes that are uniquely suited for automotive applications, such is the nature of the roll forming process.
A metal rod is often pressed through a die to achieve a shape that is far greater in diameter than the original piece. This process, known as extrusion, helps to produce the thick pipes which are essential for several kinds of uses in aerospace engineering.
A joining of two metal pieces through the use of heat and pressure is known as welding. This common technique is regularly employed to assemble larger-diameter tubing, such as that seen in aviation engineering.