is a process in which stainless steel, iron, aluminum, copper and other plates and foreign materials are deformed or broken by punching machines and dies to achieve a certain shape and size.
Metal stamping is sometimes called plate forming, but it is slightly different. The so-called plate molding refers to the use of plates, thin-walled tubes, thin sections, etc. as raw materials. The forming method of plastic processing is collectively referred to as sheet forming. At this time, the deformation in the direction of the thick plate is generally not considered.
Stamping industry is an extremely wide-ranging industry, which goes deep into all aspects of manufacturing industry. Stamping is called sheet metal forming abroad. It is also called in our country. China's stamping industry is what it looks like, how to go abroad and how we go, which is a matter of concern to our country. The great development of stamping should be attributed to the development of automobiles, airplanes and household appliances.
The main purpose of hardness testing of stamping parts is to determine whether the annealing degree of purchased metal plates is suitable for the stamping parts to be processed later. Different kinds of stamping parts processing technologies require plates with different hardness levels. The aluminum alloy plate used for stamping parts processing can be tested by a Vickers hardness tester. When the thickness of the material is more than 13mm, the Vickers hardness tester can be used instead. The pure aluminum plate or low-hardness aluminum alloy plate should adopt the Vickers hardness tester
The application field of metal stamping parts is stamping in automobile industry. Drawing is the main method. This part of our country is mainly concentrated in large factories such as automobile factories, tractor factories, aircraft factories, etc. Independent large stamping and drawing factories are still rare.
Stamping parts are sheet metal parts, that is, parts that can be processed by stamping, bending, stretching and other means. A general definition is parts with constant thickness during processing. The corresponding parts are casting parts, forging parts, machining parts, etc. For example, the outer iron shell of a car is a sheet metal part, and some kitchen utensils made of stainless steel are also sheet metal parts. Stamping is a kind of automobile repair technology, that is to say, to repair the deformed part of the automobile metal shell, such as the car body shell is bumped into a pit, it can be restored to its original shape through sheet metal.
Generally speaking, the basic equipment of stamping parts factory includes plate shearing machine, numerical control punching machine/laser, plasma, water jet cutting machine/compound machine, bending machine and various auxiliary equipment such as uncoiler, leveler, deburring machine, spot welder, etc. Generally, the most important three steps in a stamping factory are cutting, punching/cutting and folding.
Stamping parts are sometimes used for drawing metal. Generally, some metal sheets are plastically deformed by hand or die stamping to form the desired shape and size, and more complicated parts can be further formed by welding or a small amount of mechanical processing. For example, chimneys, iron sheet furnaces and automobile shells commonly used in families are all sheet metal parts
Metal stamping process is a production technology of product parts with a certain shape, size and performance by means of the power of conventional or special stamping equipment to directly subject the sheet metal to deformation force and deformation in the die. Sheet metal, die and equipment are the three elements of stamping. Stamping is a metal cold deformation processing method. Therefore, it is called cold stamping or sheet metal stamping, or stamping for short. It is one of the main methods of metal plastic processing (or pressure processing) and also belongs to material forming engineering technology.
The die used in metal stamping is called stamping die, which is called die for short. Die is a special tool for batch processing materials (metal or nonmetal) into required punching parts. Stamping dies are very important in stamping. Without the stamping dies that meet the requirements, batch stamping production is difficult to carry out: without advanced stamping dies, advanced stamping process cannot be realized. Stamping process, die, stamping equipment and stamping materials constitute the three elements of stamping process. Only when they are combined with each other can stamping parts be obtained.
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