Preparation method of two-sheet aluminum alloy rim

A two-piece, aluminum alloy technology, used in rims, transportation and packaging, vehicle parts, etc., can solve the problems of only material utilization, consuming machining hours, and high costs, reducing mold investment and reducing costs. The effect of stability and improving material utilization

Inactive Publication Date: 2015-01-07
宁波宝通轮业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The material utilization rate of this method is only 20%, and a large amount of machining man-hours are consumed, and the production cost is too high
In other words, the current method has complicated process, low material yield and high cost

Method used

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  • Preparation method of two-sheet aluminum alloy rim
  • Preparation method of two-sheet aluminum alloy rim
  • Preparation method of two-sheet aluminum alloy rim

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A method for preparing an aluminum alloy two-piece wheel rim, comprising the following steps:

[0018] (1) Material preparation: see Figure 1a As shown, put a 6061 aluminum rod with a diameter of 180mm into an electric heating furnace and keep it warm at 500°C for 3 hours. At the same time, heat the rolling ring mold to 200°C and keep it warm;

[0019] (2) Place the heated aluminum rod on an air hammer to forge a rough material so that its height reaches 1 / 2 of the height of the hub to be formed, and punch out a center hole with a diameter of 100mm in the center of the rough material , see for details Figure 1b shown;

[0020] (3) Within 60 seconds, transfer the rough material with a central hole formed in step (2) to a D51-350 ring rolling machine for ring grinding to form a ring blank, and the diameter of the ring blank reaches the required hub diameter, see figure 2 shown;

[0021] (4) Put the rolling ring blank into the spinning mold for spinning to form a se...

Embodiment 2

[0024] A method for preparing an aluminum alloy two-piece wheel rim, comprising the following steps:

[0025] (1) Material preparation: see Figure 1a As shown, put a 6061 aluminum rod with a diameter of 220mm into an electric heating furnace and keep it at 530°C for 5 hours. At the same time, heat the rolling ring mold to 300°C and keep it warm;

[0026] (2) Place the heated aluminum rod on the air hammer to forge a rough material so that its height reaches 2 / 3 of the height of the hub to be formed, and punch out a center hole with a diameter of 150mm in the center of the rough material , see for details Figure 1b shown;

[0027] (3) Within 90 seconds, transfer the rough material with a central hole formed in step (2) to a D51-350 ring rolling machine for ring grinding to form a ring blank, and the diameter of the ring blank reaches the required hub diameter, see figure 2 shown;

[0028] (4) Put the rolling ring blank into the spinning mold for spinning to form a semi-f...

Embodiment 3

[0031] A method for preparing an aluminum alloy two-piece wheel rim, comprising the following steps:

[0032] (1) Material preparation: see Figure 1a As shown, put a 6061 aluminum rod with a diameter of 250mm into an electric heating furnace and keep it at 550°C for 8 hours. At the same time, heat the rolling ring mold to 250°C and keep it warm;

[0033] (2) Place the heated aluminum rod on an air hammer to forge a rough material so that its height reaches 7 / 12 of the height of the hub to be formed, and punch a center hole with a diameter of 130mm in the center of the rough material , see for details Figure 1b shown;

[0034] (3) Within 80 seconds, transfer the rough material with a central hole formed in step (2) to a D51-350 ring rolling machine for ring grinding to form a ring blank, and the diameter of the ring blank reaches the required hub diameter, see figure 2 shown;

[0035] (4) Put the rolling ring blank into the spinning mold for spinning to form a semi-finis...

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Abstract

The invention discloses a preparation method of a two-sheet aluminum alloy rim. The preparation method includes the steps: preparing materials: placing a 6061 aluminum bar into an electric heating furnace, insulating the aluminum bar for at least three hours at the temperature of 500-550 DEG C, and heating a ring grinding mould to reach the temperature of 200-300 DEG C and keeping the temperature; placing the heated aluminum bar on an air hammer for upsetting to form a coarse material, and punching a center hole in the center of the coarse material; transferring the coarse material with the center hole onto a ring rolling mill for rolling a ring to form a ring rolling blank; placing the ring rolling blank into a spinning mould for spinning to form a semi-finished product; performing heat treatment and machining for the formed semi-finished product to form a finished product. The diameter of the 6061 aluminum bar ranges from 180mm to 250mm, the height of the coarse material is 1/2-2/3 of that of a hub needing to be formed, the diameter of the center hole ranges from 100mm to 150mm, and the diameter of the ring rolling blank reaches that of the hub needing to be prepared. The preparation method has the advantages of simplicity, high material use ratio and low cost.

Description

technical field [0001] The invention relates to the technical field of preparation of automobile rims, in particular to a preparation method of an aluminum alloy two-piece rim. Background technique [0002] Aluminum alloy two-piece rims can fully meet the unique individual needs of drivers, so they are more and more used in racing cars, off-road vehicles, buses and high-end cars. At present, the preparation method of the aluminum alloy two-piece rim mainly includes: material preparation, cleaning, heating and heat preservation of the aluminum rod, mold heating, die forging the rod during the heat preservation process, and re-carrying the knife point, reheating, spinning pressing steps. The material utilization rate of this method is only 20%, and a large amount of machining man-hours are consumed, and the production cost is too high. In other words, the current method has complicated process, low material yield and high cost. Contents of the invention [0003] The inven...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00
CPCB23P15/00B60B21/00
Inventor 徐国兴徐敬捷
Owner 宁波宝通轮业有限公司
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