The definition of metal stamping is the use of a flat sheet of metal on a stamping press that can bend, press, fold or stretch the metal. The process can either be a single or multiple stage process. Companies that use metal stamping find it to be a fast and economical method of producing large quantities. The means as to which its economical is through having a high production output at a lower price. Not all instances require metal stamping especially if you want a one-off product. If metal stamping is to be done on this product then the cost would be prohibitive. The tooling costs and longer preparations are resulted when metal stamping is done for one product.
Metal stamping includes a variety of manufacturing processes such as punching, embossing, bending, flanging and coining. The process in which a hole is created through shearing when a press punch is forced a tool through the work piece is known as punching. Punching is applicable to a wide variety of materials such as; sheet metal, paper, vulcanized fiber and some forms of plastic sheet. In addition to being applied in various materials, its considered to be the cheapest method for creating holes.
The levels of production of creating holes is usually medium to high on sheet materials. The major components of a press that is mechanically driven include; motor, frame, ram, die posts, bolster and bed. Punching is carried out using a machine press or stamping press.
Stamping of metals includes the following operations; flinging, coining, drawing, stretching, ironing, curling, hemming, necking among others. When the material is deformed or bent along the straight line its referred to as bending while flinging is when the material is bent along a curved line. The process of compressing materials into a pattern is known as coining. All in all the process of metal stamping is very complex.
Machines and structures are built using raw materials that better your manufacturing needs. The metal fabrication process shapes the metal into different parts by also removing materials. Ways in which the material is removed includes the following; creating holes or cutouts, changing the material through bending and stretching the metal. Rapid prototyping, a variety of fabrication procedures and use of recent technology, equipment, press brakes and assembly processes these are some of the advantages associated to metal fabrication. Fabrication of metals use the latest technology and good examples of these include; shear and laser cutting.
Labor intensiveness and longer production periods are some of the disadvantages of metal fabrication. In comparison to metal stamping, the costs of metal fabrication is very high. In addition to the cons is that complex parts and components that are used for stamping, the process of fabrication is usually not possible.
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