Rolling method of 6061 aluminum alloy ring part with ultra-large diameter and special-shaped section

A special-shaped cross-section, super-large diameter technology, applied in the field of ring rolling, can solve the problems of aluminum alloy rings that cannot be rolled, and achieve the effects of uniform internal structure, high material utilization rate, and complete streamlines

Active Publication Date: 2019-02-19
HUBEI UNIV OF AUTOMOTIVE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a rolling method of a super-large-diameter 6061 aluminum alloy special-shaped cross-section ring, which mainly solves the problem that aluminum alloy rings with a diameter of more than 10000 mm cannot be rolled

Method used

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  • Rolling method of 6061 aluminum alloy ring part with ultra-large diameter and special-shaped section
  • Rolling method of 6061 aluminum alloy ring part with ultra-large diameter and special-shaped section
  • Rolling method of 6061 aluminum alloy ring part with ultra-large diameter and special-shaped section

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Embodiment Construction

[0026] A rolling method of a super-large-diameter 6061 aluminum alloy special-shaped cross-section ring, comprising the following steps:

[0027] (1) Blanking, the height-to-diameter ratio of the blanking material is less than 2.5, and the 6061 aluminum alloy ingot is sawed into ingots as required. The ingot size is 1150mm in diameter and 2800mm in height;

[0028] (2) Put the ingot into the electric furnace to heat up, the furnace temperature is controlled at 470°C, and the holding time is 22 hours;

[0029] (3) Free forging, upsetting, punching, and bracket hole expansion of 6061 aluminum alloy ingots;

[0030] First, the heated and heat-preserved ingot is upset and forged into a round cake-shaped billet, and then the billet is punched. The inner diameter of the punching hole is 500mm. After the punching is completed, the temperature is raised to 470°C and kept for 5 hours. Finally, the billet is horse-framed. Reaming, preparing a ring blank with an outer diameter of 5000mm...

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Abstract

The invention relates to the field of rolling methods for ring parts, in particular to a rolling method of a 6061 aluminum alloy ring part with an ultra-large diameter and a special-shaped section. The rolling method comprises the following steps of blanking, heating and heat preservation of a cast ingot, free forging, manufacturing of a rectangular ring blank, manufacturing of the ring part withthe special-shaped section, cooling of the ring part, solid solution, aging treatment, and dimension detection. The rolling method has the advantages that the streamline of a forged part can be kept complete, the internal tissue is uniform, welding is not needed, the machining cycle is short, the material utilization rate is high, and the subsequent machining allowance is small.

Description

technical field [0001] The invention belongs to the field of ring rolling methods, in particular to a rolling method of a super-large-diameter 6061 aluminum alloy special-shaped cross-section ring. Background technique [0002] 6061 aluminum alloy is an A1-Mg-Si series heat-treatable aluminum alloy with low density, high specific strength, good corrosion resistance, weldability, processability and other characteristics. It has been widely used in aerospace, automobile, ship and other fields. widely used. Large rings are widely used in various industrial fields, such as transition rings of launch vehicles, reinforcement rings of nuclear reactors, pressure vessels, etc. [0003] Ring rolling technology is a special processing technology for producing seamless rings. At present, there are many researches on ring rolling of ferrous metals and titanium alloys in China, and the engineering application is relatively high. However, in aluminum alloy rings, especially super There i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21H1/06
CPCB21H1/06
Inventor 杨全涛
Owner HUBEI UNIV OF AUTOMOTIVE TECH
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