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Forging method of aluminum or aluminum alloy

A technology for aluminum alloys and forgings, which is applied in the direction of manufacturing tools, metal processing equipment, forging/pressing/hammer devices, etc., can solve the problems of low strength, lowering the precision and yield of forging products, secondary deformation, etc., and achieve good structure and performance. The effect of high yield and high precision

Inactive Publication Date: 2012-12-26
FIH PRECISION ELECTRONICS LANG FANG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For aluminum alloy forgings with small-sized and thin-walled bosses, such as aluminum alloy mobile phone parts, when demoulding, it is usually necessary to use the ejector pin to align the bosses to push out the aluminum alloy forgings. However, due to this At this time, the temperature of aluminum alloy forgings is high and the strength is low, and the thin wall is prone to secondary deformation during the ejection process, thereby reducing the precision and yield of forging products

Method used

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  • Forging method of aluminum or aluminum alloy
  • Forging method of aluminum or aluminum alloy
  • Forging method of aluminum or aluminum alloy

Examples

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Effect test

Embodiment

[0031] The blank is made of 5052 aluminum alloy material, and the size of the blank is 50×43×5 (mm).

[0032] Set the temperature of the upper die 10 to 360-380°C, set the temperature of the lower die 20 to 160-180°C, and set the temperature difference between the upper and lower dies to 100-200°C, use a hydraulic press to impact or squeeze the forging die 100, and the forging time 1-2min.

[0033] see figure 2 , the forging 200 is forged with a plurality of cylindrical bosses 210, square pillar bosses 220 and ribs 230, wherein the minimum size of the cylindrical bosses 210 can be 1mm 2 (bottom area)×10mm (height), the size of the rib 230 is 1.3mm (width)×7mm (height).

[0034] After the forging in this embodiment is demoulded, neither the cylindrical boss 210 nor the square pillar boss 220 on the forging is deformed, and the dimensional accuracy is high.

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Abstract

The invention provides a forging method of aluminum or aluminum alloy, which comprises the following steps that blanks of the aluminum or the aluminum alloy is provided; a forging mould which comprises an upper mould and a lower mould is provided, and each of the upper mould and the lower mould is provided with an independent heating device and temperature control equipment; the blank of the aluminum or the aluminum alloy are placed in the forging mould for forging; and the temperature difference between the upper mould and the lower mould is 100-350 DEG C in the forging process. An aluminum or aluminum alloy forged piece manufactured by the method is good in structure property and high in precision and yield, so that the method is suitable for industrialized production.

Description

technical field [0001] The invention relates to a forging method of aluminum or aluminum alloy, in particular to a forging method of aluminum or aluminum alloy products with precise dimensions. Background technique [0002] Forging refers to the processing method of plastically deforming the blank under the action of forging equipment and tools (molds) to obtain forgings with a certain geometric size, shape and quality. Isothermal forging is a precision forging method, which refers to putting the forging billet into the forging die. During the forging process, the forging die should be heated and the deformation temperature of the forging billet should be maintained. [0003] The size and precision of parts forged by isothermal forging are better. For aluminum alloy forgings with small and thin-walled bosses, such as mobile phone parts made of aluminum alloy, when demoulding, it is usually necessary to use the ejector pin to align the bosses to push out the aluminum alloy f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21J5/02B21J1/06B21J1/02
CPCB21K29/00B21J5/02B21J1/02B21K23/00B21J1/06
Inventor 龙丽林兆焄
Owner FIH PRECISION ELECTRONICS LANG FANG CO LTD
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