Squeezing-revolving shaping method of magnesium alloy wheel and device thereof

Abstract

The invention relates to a method and a device for spinning and forming a magnesium alloy wheel, adopting a cylinder-shaped prefabricated roughcast. The method is characterized in that the prefabricated roughcast is arranged on a core die, a flat surface pressure device is used for flaring the prefabricated roughcast by axially moving the prefabricated roughcast, then the prefabricated roughcast and the core die rotate together and the prefabricated roughcast is spun through the radical feeding movement of a rotating spinning roller having the same outline shape as the wheel along the prefabricated roughcast, so that the prefabricated roughcast is subjected to continuous partial plastic deformation along the radial direction, and finally a needed outline of the magnesium alloy wheel is formed. Furthermore, the device comprises a stand and a core die, wherein the stand is in a box shape and is a consistent temperature oil tank, and the box-shaped stand is internally provided with a spinning roller device, a core die rotating device, the flat surface pressure device and a tank cover. In addition, the invention solves the problems of the forming and the demoulding of a similar part of a wheel which is small at both ends and big in the middle, and has the advantages of consistent temperature extrusion, higher dimension precision of products, enhanced production efficiency, and the like.

Description

1. Technical field [0001] The invention relates to the field of plastic processing technology and equipment, in particular, it is mainly used for a magnesium alloy wheel extrusion and spin forming method and a device thereof. 2. Background technology [0002] Magnesium alloy has a series of advantages such as low density, high strength, good damping performance, etc. It shows great advantages in automobiles. Magnesium alloy wheels are a typical example of new-generation automobile parts replacing new materials. At present, for magnesium alloy wheels, there are mainly two processing methods: casting and forging: [0003] 1. Cast magnesium alloy wheels: mainly manufactured by low-pressure casting, pressure casting, squeeze casting and other methods. There have been research reports at home and abroad, but cast magnesium alloy wheels have relatively low strength and toughness, and it is difficult to meet the requirements of high-performance wheels. Practical engineering applic...

AI Technical Summary

Problems solved by technology

However, the existing spinning machine tools and devices are difficult to apply to magnesium alloy spinning, and it is impossible to realize the spinning of magnesium alloy wheels.

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