Improved spinning roller for forming spin-casting aluminum alloy wheel

Abstract

The invention discloses an improved spinning roller for forming a spin-casting aluminum alloy wheel. The forming angle of the spinning roller is set as 32 degrees, an R86-mm circular arc is removed, and a 31-mm straight section (7) is added. The outer diameter of the spinning roller is set as phi 430mm. The radius of the rounded angle of the spinning roller is set as R10mm. The radius of the transitional rounded angle is set as R25mm. The improved spinning roller for forming the spin-casting aluminum alloy, provided by the invention, can be made into a standard part, and can be flexibly used for spin-casting aluminum alloy wheels having different dimensions because the outer diameter of the spinning roller is increased.

Description

technical field [0001] The invention relates to a rotary wheel, in particular to a rotary wheel used for aluminum alloy wheel spinning forming. Background technique [0002] Cast spinning aluminum alloy wheel (referred to as "cast spinning wheel") is a kind of aluminum alloy wheel whose spokes are formed by low-pressure casting process and rim is formed by powerful spinning process. Due to the use of the spinning process, the performance indicators of the rim of the cast spin wheel are greatly improved compared with the low-pressure cast wheel, and while meeting the strength of the wheel, the wall thickness of the rim can also be greatly reduced. Therefore, the casting wheel reduces the design weight, realizes the high strength and light weight of the product, and is currently one of the easiest ways to reduce the weight of aluminum alloy wheels. [0003] The rim strong spinning process belongs to thinning spinning. According to the degree of deformation, the deformation pr...

AI Technical Summary

Problems solved by technology

[0004] The design structure of the existing rotary wheel will cause serious accumulation of wool in front of the rotary wheel, and the local resistance of the rotary wheel will increase, resulting in a sharp increase in the radial tension of the wool contacting the rotary wheel, making the wall thickness thinner; at the same time, the blank and The radial stress at the contact point of the tail top changes in tension and compression, and the increase in the radial stress of the contact wool at the top of the tail will also increase the tensile and compressive stress on the wool material at the top of the tail, eventually leading to an increase in the equivalent strain

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