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A labor-saving automobile hub forming method and device thereof

A technology for automobile hubs and rear wheels, applied in forging/pressing/hammer devices, forming tools, metal extrusion, etc., can solve the problems of difficult forming of front and rear wheel rims, high equipment pressure, and large forming force, so as to simplify the process and Process, reduction of mold tooling and equipment, high dimensional accuracy and surface accuracy

Inactive Publication Date: 2009-04-08
ZHONGBEI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The use of critically controlled deformation and lubricants ensures that the metal material fills the cavity, refines the grain structure, and the internal structure of the product is denser and the grain size is smaller, which improves the mechanical properties and surface quality of magnesium alloy wheels and other products, and reduces The equipment is improved and the production cost is reduced, but the process is still relatively complicated, the forming force is large, the front and rear rims are difficult to form, and it is difficult to demould, and the required equipment pressure is relatively high

Method used

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  • A labor-saving automobile hub forming method and device thereof
  • A labor-saving automobile hub forming method and device thereof
  • A labor-saving automobile hub forming method and device thereof

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Embodiment Construction

[0038] The specific implementation will be described in detail below in conjunction with the accompanying drawings (this embodiment is a further description of the present invention, rather than any limitation to the present invention).

[0039] figure 1 As shown, a process flow chart of an automobile wheel hub labor-saving forming method. A labor-saving forming method for an automobile wheel hub includes casting blanks-homogenization treatment-preforming blanks-extrusion-upsetting the front wheel rim-flaring and flanging rear wheel rim technology, and finishing procedures; wherein the extrusion process adopts reverse extrusion process.

[0040] Preforming billet making process: upsetting preformed hollow billets in the free state of casting billets.

[0041] figure 2As shown, it is called "hollow billet, mandrel extrusion" method. Back-extrusion process: use a punch with a mandrel, which is an integral mold. The back-extrusion process uses a mandrel to extrude a hollow b...

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Abstract

The invention relates to a method for shaping the vehicle hub and relative device. Wherein, it comprises following steps that casting blank; uniform processing; pre-shaping blank; compressing; compressing the front rim; expanding opening and folding the edge at the back rim. The invention is characterized in that: the casting blank via pre-shaping is made into hollow blank; the concave and convex moulds in the compressing step and the compressing front rim step are integrated, while the convex mound contains core axle; the compressing step compresses the hollow blank in the mould via core axle to obtain the cylinder element whose bottom has holes; the step that compressing front rim uses metal diversion to stuff and shape; the step that expanding opening and folding the edge of back rim uses integrated convex mould and separated concave mould to expand opening, fold edge an shape the back rim. The invention can simplify the process, reduce device number, reduce the shaping force, reduce the energy consumption, and reduce the producing cost. The invention is mainly used to produce aluminum and magnesium alloy hub.

Description

1. Technical field [0001] The invention belongs to aluminum and magnesium alloy extrusion forming technology, in particular to a labor-saving forming method and device for aluminum and magnesium alloy automobile wheel hubs, rings and disc-shaped parts. 2. Background technology [0002] With the rapid development of the global automobile industry, automobile lightweight has been put on the agenda. In order to reduce the weight of the car itself, improve fuel-saving efficiency, reduce exhaust pollution, ensure the safety of the car, and make it more excellent in use. Lightweight structural materials (such as aluminum, magnesium alloys, etc.) show great advantages in automobiles, especially magnesium alloys, which are not only light in weight, high in specific strength, but also good in damping performance, and are good light-absorbing materials for manufacturing such as automobile wheels. vibration material. [0003] As an important safety component of an automobile, the whe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P13/00B23P23/00B21C23/02B21C25/02B21C31/00B21J5/06B21J13/02B21D41/02B21D19/12B21D37/10
Inventor 张治民王强张星张宝红李保成
Owner ZHONGBEI UNIV
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