Stainless steel stamping and drawing becomes deep drawing when car stainless steel fuel tank is drawing longer than its diameter, it's common that the stainless steel fuel tank is also processed using other forming processes, such as piercing, ironing, necking, rolling and beading.
The success of forming is in relation to two things, the flow and strech of material. As a die forms a shape from a flat sheet of material, there is a need for the material to move into the shape of the die. The flow of material is controlled through pressure applied to the blank and lubrication applied to the die or the blank. If the form moves too easily, wrinkles will occur in the fuel tank part.
To correct this, more prssure or less lubrication is applied to the blank to limit the flow of material and cause the material to stretch or thin. If too much pressure is applied, the part will become too thin and break. Drawing stainless steel fuel tank can be the science of finding the correct balance between wrinkles and breaking to achieve a successful part.