Processing method of forged aluminum alloy two-piece car wheel rim

A processing method and two-piece technology, applied in the field of special forging, can solve problems affecting driving safety and air leakage

Active Publication Date: 2019-04-19
浙江宏鑫科技股份有限公司
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the two-piece car wheel rims on the market are basically welded by aluminum plates and then rolled or spun. Since the rims have very high air tightness requirements, the welding parts of the welded rims often suffer from slag holes and weld seams. Air leakage occurs in other situations, seriously affecting driving safety

Method used

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  • Processing method of forged aluminum alloy two-piece car wheel rim
  • Processing method of forged aluminum alloy two-piece car wheel rim
  • Processing method of forged aluminum alloy two-piece car wheel rim

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Embodiment Construction

[0016] The invention relates to a processing method for forging aluminum alloy two-piece car wheel rims, such as figure 1 — Figure 4 shown, including the following steps:

[0017] ①. Preheating: Take a piece of aluminum rod, and use a heating furnace to preheat it to above 460°C, generally not exceeding 500°C;

[0018] ②, Pre-pressing: Forging and pressing the preheated aluminum rods through a 2000T hydraulic press, forging and pressing into a cake-shaped rough billet;

[0019] ③ Forming forging: place the cake-shaped rough blank in the forming forging die accurately by the manipulator, and carry out die forging with a rotary forging hydraulic press of about 8000T to obtain a rough blank with a thin center and thick sides;

[0020] ④, Punching and shaping: the obtained blank is shaped under a 630T hydraulic press through a shaping die, and at the same time, the excess waste in the middle is washed away, and finally a ring forging 01 with a slightly thinner middle and thicke...

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Abstract

The invention relates to a machining method for a forged aluminum alloy two-piece saloon car wheel rim. The machining method includes the following steps that (1) preheating is carried out, wherein an aluminum bar is taken to be preheated to 460 DEG C or above; (2) prepressing is carried out, wherein the preheated aluminum bar is forged and pressed into a cake-shaped rough blank; (3) molding forging is carried out, wherein the cake-shaped rough blank is accurately placed into a molding forging die through a mechanical arm, die forging is carried out, and a blank with the thin middle and the two thick sides is obtained; (4) punching and shaping are carried out, wherein the obtained blank is subject to shaping and waste punching through a shaping device, and an annular forging piece with the slightly-thin middle and the two slightly-thick sides is obtained; (5) splitting is carried out, wherein a splitting wheel X is used for conducting asymmetrical cutting on the annular forging piece, and an asymmetrical bowl-shaped structure is obtained; and (6) spinning molding is carried out, wherein a spinning lathe used for conducting brute force spinning on the bowl-shaped structure, meanwhile, a rough spinning wheel A, a semi-finish spinning wheel B and a finish spinning wheel C are used for conducting up and down reciprocated spinning on the bowl-shaped structure in a manner than a certain staggered distance is kept, and the molded wheel rim is finally obtained.

Description

technical field [0001] The invention relates to a wheel rim, in particular to a processing method for forging an aluminum alloy two-piece car wheel rim, which belongs to the field of special forging. Background technique [0002] At present, the two-piece car wheel rims on the market are basically formed by welding aluminum plates and then rolling or spinning. Because the rims have very high air tightness requirements, the welding parts of the welded rims often suffer from slag holes and weld seams. Air leakage occurs in other situations, seriously affecting driving safety. Contents of the invention [0003] The purpose of the present invention is to overcome the disadvantages of the prior art, to provide a split-type powerful spinning process, using the existing spinning equipment, to make the rim one-time spinning forming, to prevent the rim from leaking, and to improve the strength of the forging Processing method of aluminum alloy two-piece car wheel rim. [0004] Th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/00
CPCB23P15/00
Inventor 王文志
Owner 浙江宏鑫科技股份有限公司
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