In the stamping industry, stamping is sometimes called sheet forming, but there is a slight difference. The so-called sheet forming refers to the sheet, thin-walled tube, thin profile and other materials as raw materials for plastic processing forming method collectively known as sheet forming, at this time, the direction of the thick plate deformation is generally not considered.

Drawing stamping is a forming processing method that relies on press and die to exert external force on plate, strip, pipe and profile to produce plastic deformation or separation, so as to obtain the required shape and size of the workpiece (stamping). Stamping and forging are plastic processing (or pressure processing), collectively called forging. The blank for stamping is mainly hot-rolled and cold-rolled steel plate and strip.

Compared with castings and forgings, drawing stamping parts have the characteristics of thin, uniform, light and strong. Stamping can increase rigidity by producing parts with stiffeners, ribs, undulations or flanges that would otherwise be difficult to produce. Due to the use of precision die, workpiece accuracy can reach micron level, and high repetition accuracy, consistent specifications, can be stamped out of the hole, boss, etc..

In recent years, in the area where the drawing stamping parts industry is concentrated, the traditional hardware production enterprises have gradually realized the forward and backward integration. Manufacturers who originally only produced hardware spare parts also set foot in the manufacture of large machinery and equipment. Usually, enterprises in a region have achieved strategic integration from raw material processing to spare parts supply to finished product manufacturing.

Attention should be paid to maintenance of tensile stamping parts after installation to prevent rust corrosion. In daily use, it is necessary to close and open gently to prevent hard closing and hard opening, resulting in damage. There was no noise, and now there are nylon wheels. It not only push and pull up no noise, and more smooth, light, service life is not shorter than the above various pulleys. Keep the (doors) and Windows in order.