Spinning technology, also called metal spinning forming technology, is formed by rotating the force point from point to line from line to surface, while giving a certain pressure in a certain direction to deform and flow the metal material along this direction. Technology of a certain shape. Here, metal materials must have plastic deformation or flow properties. Spinning is not equivalent to plastic deformation. It is a complex process that combines plastic deformation and flow deformation. It is particularly important to point out that the spinning forming technology we are talking about is not a single strong force. Spinning and ordinary spinning, it is a combination of the two; powerful spinning is used for the processing technology of spinning forming shells of various barrels and cones. It is an older and mature method and technology. It is called the rolling method.
The basic principle of metal spinning technology is similar to ancient pottery production technology. Spinning forming parts are generally cylindrical parts of revolution or dish-shaped parts, and spinning parts blanks are usually thick-walled cylindrical parts or circular plates. The principle and structure of a spinning machine are similar to a metal cutting lathe. In the position of the large carriage of the lathe, it is designed to have a rotating wheel frame with axial movement power. The rotating wheel fixed on the rotating wheel frame can move radially; a core die (shaft) is coaxially connected with the main shaft. , The spinning blank is sleeved on the core mold (shaft); the rotary wheel is passively rotated by the friction force generated by the contact with the blank on the core mold (shaft); at the same time, the rotary wheel frame is in the axial direction with a large thrust cylinder Under the action of, make axial movement. Under the combined action of the axial force and the radial force of the rotating wheel, the surface of the blank is continuously plastically deformed point by point. At the position of the lathe tail top support, it is designed as a tail top hydraulic cylinder on the same axis as the main shaft. The hydraulic cylinder exerts an axial thrust on the end face of the blank sleeved on the mandrel (shaft)
There are two types of spinning forming: ordinary spinning and powerful spinning. Spinning that does not change the thickness of the blank but only changes the shape of the blank is called ordinary spinning; that is, the spinning that changes the thickness of the blank and changes the shape of the blank is called powerful spinning. The spinning force required for powerful spinning forming is relatively large, and the structure of the spinning machine is generally more complicated. Power spinning forming is divided into forward rotation and reverse rotation according to the direction of rotation of the wheel and the direction of metal flow. The direction of rotation of the wheel is the same as the direction of metal flow, which is called forward rotation; otherwise, it is called reverse rotation. For the same material, the spinning pressure required for reverse spinning is relatively large. Which spinning method is used for forming depends on the shape and process requirements of the part.
The selection of the spinning machine is determined by the spinning process and various molding process conditions. Spinning machines are divided into two types: powerful spinning machines and ordinary spinning machines. The powerful spinning machine is divided into two-wheel and three-wheel. There are also spinning machines for special parts spinning, such as hot spinning machines, steel ball spinning machines, etc.
In mechanical products, how to save raw materials but improve product quality, reduce product weight but prolong service life, reduce product manufacturing cost and energy consumption but reduce processing man-hours has always been people’s concern. For example, the “V” type pulley (commonly known as the “V” type pulley) is one of the mechanical transmission parts with a wide range of uses, and it is of great significance if it can be formed from steel plates. Compared with traditional cast iron pulleys, sheet metal pulleys can save more than 70% of raw materials. The sheet spinning pulley, which is made of sheet metal by stretching and spinning, is the latest and best pulley structure. This kind of pulley not only has the advantages mentioned above, but also has no environmental pollution, and is especially widely used in various mechanical products such as automobiles, tractors, harvesters, and air compressors. Using steel sheet blanks in special belts
The wheel spinning machine makes the blank produce plastic deformation from point to line and line to surface.
Spinning pulleys generally have three basic forms: folding pulleys, split pulleys, and rolling multi-V-shaped pulleys (also known as multi-ribbed pulleys).
Compared with cast iron pulley, the advantage of spinning pulley is that it is made by spinning process (no chip processing), light structure, material saving, so the moment of inertia is small, and it is a new product that saves materials and saves energy. High production efficiency (processing 2 to 4 pieces per minute), good balance performance, generally no need for balance treatment. Because the material flow is not cut, the surface production is hardened by cold work, the tissue density is increased, the strength and hardness of the wheel groove surface are improved, and the dimensional accuracy is high, the slip difference between the V-belt and the wheel groove is small, and the belt life is long.
Dongguan Wonder Metal inc is a high-tech enterprise engaged in spinning aluminum reflectors. The company’s products are mainly used in LED high bay lights, LED flood lights, and LED street lights.
Dongguan Wonder Metal inc was founded in 2001. The company has a plant area of nearly 10,000 square meters, fixed assets of 5 million U.S. dollars, sales of nearly 10 million U.S. dollars in 2018, and a daily production capacity of 10,000 lampshades.
Dongguan Wonder Metal inc has ten CNC spinning machines in the industry, three large-scale automatic shot blasting and sandblasting machines, and dozens of automatic drilling and tapping machines and punching punches. In the surface treatment process, Dongguan Wonder Metal inc has an automated electrolytic polishing and oxidation production line.
Dongguan Wonder Metal inc has nearly 100 employees, including more than 10 R&D personnel. At the same time, we have in-depth cooperation with some universities in thermal and optics to provide talent guarantee for the company’s subsequent development. The heat dissipation effect of the LED kit developed by the company is increased by 20%, and the light output rate of the lampshade can be increased by 30%. The diameter of the spinning lampshade can reach 1000mm, and the thickness can reach 50mm. Wonder Metal has its own mold processing and repair center to ensure stable quality and timely delivery. Wonder Metal has more than 500 sets of punching dies and more than 400 sets of spinning dies. In order to keep the product at a high-quality level, starting from the control of raw materials, use 1070 high-purity aluminum plate; pay close attention to the production process, from the punching accuracy of the aluminum plate, CNC spinning processing, as well as rough polishing, fine polishing, fine polishing, anodizing, etc. A series of surface treatment processes. The defective product rate is controlled within two thousandths.
Ninety percent of Wonder Metal’s products are customized products for customers. The company cooperates with a large number of listed companies at home and abroad, including Philips, GE, Huapu Sunlight, and Sunshine. We will be market-oriented, R&D as the main body, quality as the foundation, and a strict management team to carefully build “high-quality” products for customers and provide customers with services.
