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Forging process of magnesium-lithium alloy

A magnesium-lithium alloy and process technology, applied in the field of magnesium-lithium alloy forging process, can solve the problem of insufficient performance and high

Inactive Publication Date: 2021-06-04
SHAANXI HEYE SPECIAL STEEL TOOL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, magnesium-lithium alloys are generally processed into castings first. Since the performance of magnesium-lithium alloy castings is not high enough to fu

Method used

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  • Forging process of magnesium-lithium alloy

Examples

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Effect test

Embodiment 1

[0032] In this embodiment, the magnesium-lithium alloy ingot has a specification of Ф300 mm.

[0033] The forging process of the magnesium-lithium alloy in this embodiment mainly includes: blanking, heating, forging, air cooling and detection, specifically as follows:

[0034] Cutting: Use a sawing machine (model G4240) to saw the magnesium-lithium alloy ingot with a diameter of Ф300mm, and the size specification is Ф300×520mm;

[0035] Heating: the magnesium-lithium alloy ingot with a size of Ф300×520 mm is heated before forging through an electric furnace (model HY-S0101, HY-S0033). Install the furnace at a furnace temperature of ≤300°C, the magnesium-lithium alloy ingot is heated up with the furnace to the heating temperature: 300±10°C, and the holding time: 300min;

[0036] Forging: After the heat preservation is over, forging is carried out by a 2000T press (model HY-S0066). Divided into two fire forging, specifically:

[0037] 1 fire: first upsetting the Ф300×520mm bi...

Embodiment 2

[0044] In this embodiment, the magnesium-lithium alloy ingot has a specification of Ф260 mm.

[0045] The forging process of the magnesium-lithium alloy in this embodiment mainly includes: blanking, heating, forging, air cooling and detection, specifically as follows:

[0046] Cutting: Use a sawing machine (model G4240) to saw the magnesium-lithium alloy ingot with a diameter of Ф260mm, and the size specification is Ф260×520mm;

[0047] Heating: The magnesium-lithium alloy ingot with a size of Ф260×520 mm is heated before forging through an electric furnace (model HY-S0101, HY-S0033). Install the furnace at a furnace temperature of ≤300°C, the magnesium-lithium alloy ingot is heated up with the furnace to the heating temperature: 300±10°C, and the holding time: 260min;

[0048]Forging: After the heat preservation is over, forging is carried out by a 2000T press (model HY-S0066). Divided into two fire forging, specifically:

[0049] 1 fire: first upsetting the Ф260×520mm bil...

Embodiment 3

[0056] In this embodiment, the magnesium-lithium alloy ingot has a specification of Ф350 mm.

[0057] The forging process of the magnesium-lithium alloy in this embodiment mainly includes: blanking, heating, forging, air cooling and detection, specifically as follows:

[0058] Cutting: Use a sawing machine (model G4240) to saw the magnesium-lithium alloy ingot with a diameter of Ф350mm, and the size specification is Ф350×520mm;

[0059] Heating: The magnesium-lithium alloy ingot with a size of Ф350×520 mm is heated before forging through an electric furnace (model HY-S0101, HY-S0033). Install the furnace at a furnace temperature of ≤300°C, the magnesium-lithium alloy ingot is heated up with the furnace to the heating temperature: 300±10°C, and the holding time: 350min;

[0060] Forging: After the heat preservation is over, forging is carried out by a 2000T press (model HY-S0066). Divided into two fire forging, specifically:

[0061] 1 fire: first upsetting the Ф350×520mm bi...

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Abstract

The invention belongs to the technical field of metal material processing, and discloses a forging process of magnesium-lithium alloy. The forging process comprises the following steps that a magnesium-lithium alloy blank is heated to 290-310 DEG C and heat preservation is conducted, so that the temperature of the magnesium-lithium alloy blank is uniform; the magnesium-lithium alloy blank subjected to heat preservation is forged, upsetting and drawing-out procedures are repeatedly conducted during forging, finally, drawing-out trimming is conducted to the final size, air cooling is conducted, and the deformation amount of the magnesium-lithium alloy blank during upsetting is 40%-44%; and the deformation amount from upsetting to drawing is 42%-48%, the deformation amount from drawing to upsetting is 42%-48%, and the deformation amount from drawing to final size is 17%-27%. Through the forging process, the performance of a magnesium-lithium alloy casting or casting blank is further improved, and the advantages of the magnesium-lithium alloy are brought into full play.

Description

technical field [0001] The invention belongs to the technical field of metal material processing, and in particular relates to a forging process of a magnesium-lithium alloy. Background technique [0002] Magnesium-lithium alloy is an ultra-light metal structure material. Lithium is added to magnesium metal, generally containing 14%-16% lithium, and its specific gravity is between 1.4-1.6, which is lower than the 1.8 of ordinary magnesium alloys, and its density is higher than that of plastics. Slightly higher, strength 220-340MPa, elastic modulus 40GPa. It has good thermal conductivity, electrical conductivity, and ductility, and has a wide range of applications in aerospace, national defense and military industries. With the increasing requirements for lightweight structural materials, weight reduction, energy saving, environmental protection, and sustainable development in today's world, magnesium-lithium alloys also show broad application prospects in fields such as tra...

Claims

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Application Information

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IPC IPC(8): B21J5/00B21K29/00
CPCB21J5/002B21K29/00
Inventor 王世超曹玉如张超廉颖张博
Owner SHAANXI HEYE SPECIAL STEEL TOOL
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