39 results about "Metal spinning" patented technology

The invention provides a metal spinning cutter. The metal spinning cutter is used for performing metal spinning for a firearm part with two small end holes, a middle large hole and a thin end. The metal spinning cutter is characterized by comprising a cutter saddle, a mandrel, a middle washer, two end washers and a blade, wherein the blade is limited in the middle of the mandrel by the two end washers, the two end washers are symmetrical with each other relative to the center line of a cylinder, which is connected with a tailstock of a lathe, of the cutter saddle, and the mandrel is connected onto the cutter saddle by nuts. The metal spinning cutter has the advantages that a muzzle can be machined by the metal spinning cutter, chipless metal spinning can be carried out according to plastic deformation of metal, metal spinning can be completed only by means of rotating a firearm bolt, and the metal spinning cutter is simple in operation and can be implemented easily.

The invention provides a manufacturing method of a metal spinning part. The manufacturing method of metal spinning parts comprises the following steps of 1, prestretching a metal raw material into a pie blank; 2, conducting first-pass spinning on the blank and then conducting complete annealing treatment on the blank to obtain a primary treated product; 3, conducting second-pass spinning on the primary treated product and then conducting incomplete annealing and quenching treatment to obtain a secondary treated product; and 4, conducting third-pass spinning on the secondary treated product andthen conducting quenching and aging treatment to obtain the metal spinning part. Through the manufacturing method, the crack sensitive rate of products can be eliminated or substantially reduced; thephenomena of surface cracking of spinning products manufactured through the method can be reduced by 90% or more; and the situation that the products are subjected to cold hardening in the spinning process badly, the crack depth of the outer surface of the spinning part is increased and the spinning part gets cracked and is scrapped is avoided.

The invention relates to a method for pressing conical cover reinforcing ribs. A sectioning mold same with the molded surface of a product is adopted, a common spherical turning lathe or a numerical control spinning machine is used, and a hot metal spinning mode is adopted. The characteristic that an aluminum alloy material has a good plasticity under a certain temperature while the strength and the toughness are obviously reduced is utilized, and a panel veneer used as a blank. Under the combined action of the radial force and the axial force of a spinning roller, through multi-pass spinning, the panel veneer is forced to deform, materials flow and form workpieces similar with the molded surface of the mold, and the spinning formation of an aluminum alloy annular-structure product with a section like the shape of Chinese character 'ji'. The characteristic that the sectioning mold is detachable is utilized to realize the separation of the 'ji'-shaped section annular-structure piece and the mold, and the completeness of the annular-structure piece is ensured. According to the method, the aluminum alloy annular-structure piece with the special-shaped section which is difficultly formed with processes such as general stamping, machining and the like can be formed. The method has the characteristics of low cost, low labor strength of workers, high processing efficiency and high material use ratio.

In the air disperser (4) having a number of components including a top, a bottom and an outer circumferential wall forming a space (45) defined within an inner radius and an outer radius and having an air inlet (81), a set of guide vanes (7), and an air outlet (82) at the inner radius adapted to be positioned above a feed outlet from atomizing means, at least some of the components are formed by precision metal forming such as metal spinning.

The invention discloses a self-adapting spinning mechanism of a sheet metal spinning machine. The design key point is that the self-adapting spinning mechanism of the sheet metal spinning machine comprises a base and a sliding plate which is arranged on the base and can slide back and forth, wherein the base is provided with a pretension spring for pushing the sliding plate outwards, and the sliding plate is provided with a roller wheel assembly for applying pressure. The invention aims to provide the spinning mechanism of the sheet metal spinning machine which has a simple structure and can be adjusted adaptively.