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Rolling method of titanium alloy plate-shaped forgings

A titanium alloy plate and titanium alloy technology, applied in the direction of metal rolling, metal processing equipment, etc., can solve the problems of too many forging fires, achieve the effects of improving quality, avoiding uneven thickness, and improving production efficiency

Inactive Publication Date: 2016-03-16
GUIZHOU ANDA AVIATION FORGING
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a rolling method for titanium alloy plate-shaped forgings to produce plate forgings. The forgings are made into high-tube thin-walled ring-shaped forgings by ring rolling, and then sheared and straightened into a plate shape. Forgings can effectively avoid defects such as uneven thickness, poor structure uniformity, and many times of forging fires, improve the quality of forgings, and improve production efficiency

Method used

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Embodiment approach

[0018] The chemical composition (percentage by weight) of the TC4 alloy is: 5.5% to 6.8% of Al, 3.5% to 4.5% of V, ≤0.30% of Fe, ≤0.10% of C, and ≤0.05% of N , H content ≤ 0.015%, O content ≤ 0.20%, other elements individually ≤ 0.10% and the sum ≤ 0.40%, the balance being Ti.

[0019] The steps of this method are as follows:

[0020] Heat the titanium alloy rods cut according to the specifications to 30°C below the phase transition point, and keep warm according to the effective thickness × 6min / 10mm; use three times of upsetting, elongating, and rolling for re-forging, and air-cool after forging; the final forging temperature is greater than Equal to 880°C;

[0021] Reheat the reforged billet to 780°C, and keep it warm according to the effective thickness × 6min / 10mm; then perform upsetting to obtain a solid cylinder; then punch the solid cylinder to obtain a hollow cylinder, and the inner diameter of the hollow cylinder is the outer diameter 30% to 40% of the size;

[00...

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Abstract

The invention discloses a rolling method of titanium alloy plate-shaped forgings. The rolling method comprises the following steps of: substituting forging a titanium alloy billet by adopting three upsetting and three drawing firstly; then carrying out upsetting, punching, frame reaming and rolling on the titanium alloy billet after substituting forging to prepare a high-cylinder and thin-walled ring, wherein the inner diameter of the ring is 85-90 percent of the outer diameter; cutting the high-cylinder and thin-walled ring into two hemi-toroidal parts by using wire cutting; and then straightening by a forging hammer to acquire two plate-shaped forgings. The rolling method effectively avoids the defects about uneven thickness, poor organization homogeneity, multiple forging times and the like of the forgings, improves the quality and the production efficiency of the forging and is used for producing the titanium alloy plate-shaped forgings.

Description

technical field [0001] The invention relates to a rolling method of a plate-shaped forging, in particular to a rolling method of a titanium alloy plate-shaped forging. Background technique [0002] The plate-shaped part is a commonly used structural part. At present, the free forging method is usually adopted for the forming of this type of forging, that is, forging with a free forging hammer to make it into a plate shape. The biggest disadvantage of this method is that the thickness of this type of forging is small, the temperature drops too fast during the forging process, and the deformation resistance increases quickly, so that the thickness of each hammer forging is not the same, resulting in the thickness of the final plate-shaped forging. Uniformity, and because the deformation of each part is inconsistent, the structure uniformity of the forging is poor. Usually, multiple forgings are required, which increases energy consumption and prolongs the production cycle. C...

Claims

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Application Information

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IPC IPC(8): B21J5/00B21H1/06
CPCB21J5/002B21H1/06
Inventor 苏春民欧阳斌郑永灵奚晓刘彦成
Owner GUIZHOU ANDA AVIATION FORGING
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