Sheet metal has numerous applications due to its thinness that allows it to be bent and cut to a wide range of designs and shapes. Some of the metals that are made into sheet metal include copper, brass, aluminium, titanium, and nickel. An important factor used to determine the type of sheet metal is its thickness; with exceedingly thin sheets considered as leaf or foil and sheets thicker than a quarter of an inch are considered as plates. Numerous items are fabricated from all types of sheet metal. However, one of the processes included in sheet metal operation is forming. Sheet metal forming is a popular method used in the manufacturing of numerous sheet metal apparatus across the metal industry. According to the manufactured apparatus and manufacturing methods, there are several forming methods fabricators use and some of them are discussed below:
In this forming method, the specific sheet metal is passed along a sequence of die and punch to draw and form the desired shape. If the drawing's depth is greater than the component's diameter, the process is then referred to as deep drawing forming method. This forming method has numerous applications such as appropriate for massive item production, as a lesser production cost, and shallow components such as cups and metal caps are the best items for this particular method.
In this forming method, the sheet metal used is stretched to produce the desired shape. This forming method is achieved by tightly holding the sheet with jaw machines and stretching it against the metal's stretching die. This forming method has numerous applications such as low production expenditure, best applicable for bending sheet metal that has a large radius, and it is the perfect method for creating large sheet metal parts such as wing panels and aircraft fuselages.
This electromagnetic forming method is conducted under high and intense electromagnetic process on electrically conductive materials such as copper and aluminium. This forming method has numerous applications such as low tooling expenditure, high completion rate, eliminates any wrinkling on the metal sheet, and it is particularly used for bulging and shrinking of tubes.
In this forming method, the specific sheet metal passes through several sets of rollers at the same time. The different sets of rollers have different roles in the forming process as they gently mould the sheet into the desired shape by forming. This forming method has numerous applications such as appropriate for constant long and cross section metal components, producing a neat metal surface finishing, appropriate for massive item production, and has a lesser production cost compared to other forming methods.