The development of precision stamping technology 'Hardware'

Precision stamping technology has changed the nature of the blank production of the traditional sheet metal stamping process. Plates, strips, strips, and coils can be used on a special fine-blanking machine with a fine-punching die with various shapes and powerful blanks to punch out the dimensions and Precision stamping parts with high form and position accuracy, smooth and smooth punching surface, comparable to cutting parts. In recent years, the precision blanking of sheet metal has expanded its processing range into a composite of precision blanking and forming that can be used for precision punching of deep holes, countersinks, blind holes, embossing, embossing, embossing, upsetting, flanging, etc. Processing, precision stamping technology for various complex sheet metal stamping parts. Dongguan Hardware has been producing customized hardware precision stamping parts for many years. In ordinary punching, due to the certain gap between the punch and the die, the punching surface of the punching part becomes a distinct and rough inclined surface. For example, the blanking and punching holes of round parts are visible to the naked eye. The taper and obvious collapse angle and burrs. The size of the large end of the blanking piece is equal to the size of the die edge; the size of the small end of the punching piece is equal to the size of the punch edge. When measuring the size of the blanking piece and using the blanking piece, the blanking piece is based on the big end size, and the punching piece is based on the small end size. If the punching surface of the blanking part is used as a mating surface, a reference surface, a connecting surface, a moving surface, a decorative surface..., there are strict dimensional tolerances and shape and position accuracy requirements, especially when flatness, perpendicularity, and surface roughness are required. It is a medium-thickness plate and thick plate blanking parts with a thickness of t3mm. The traditional process is to complete the blanking by punching and cutting. Since F. Schiess invented the powerful pressing precision stamping technology with V-shaped gear ring and gradually popularized it for precision blanking of sheet metal after 1958, high-precision and complex shapes, and the punching surface requires flat and smooth medium and thick plates and thick plates. The parts can be punched with this precision stamping method, which has good quality and high efficiency, which has attracted attention and rushed to research and promote. Since then, a variety of precision stamping methods have been successfully developed in other countries. In recent years, the precision stamping process is mainly the precision blanking process of the powerful ring gear blanking process, which has been gradually promoted in the production of mechanical and electrical products such as instrumentation, switch appliances, automobiles and motorcycles in my country, and is used for precision stamping of various metal plates with a thickness of t≤16mm. Material stamping parts have achieved satisfactory benefits.