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Method for increasing yield rate of titanium alloy wire by rotary forging

A technology of titanium alloy and yield rate, which is applied in the field of titanium alloy wire preparation, can solve problems such as poor finish, low yield, and damage, and achieve the effects of improving efficiency, improving surface quality, and avoiding serious oxidation

Active Publication Date: 2020-09-29
CHENGDU ADVANCED METAL MATERIALS IND TECH RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the problems of surface damage, especially scratches, poor finish and low yield in the preparation process of titanium alloy wire existing in the prior art, and to provide a method for improving the yield of titanium alloy wire by swaging method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] This embodiment is used to illustrate the swaging reducing method of Φ8mm→Φ6mm TA1 wire rod.

[0044] A. Adjust the heat-treated Φ8mm wire with the straightening device equipped at the entrance of the swaging machine until the straightness is less than 10mm / m, and then get stuck at the entrance of the swaging machine;

[0045] B. Replace the swaging machine with a Φ7mm mold, and use the swaging machine to reduce the diameter of the Φ8mm wire straightened in step A to Φ7mm at one time;

[0046] C. After adjusting the Φ7mm wire rod obtained in step B until the straightness is less than 10mm / m, it is stuck at the entrance of the swaging machine;

[0047] D. Replace the swaging machine with a Φ6mm mold, and use the swaging machine to reduce the diameter of the Φ7mm wire straightened in step C to Φ6mm at one time;

[0048] E. During the reducing process described in step B and step D, use DTE46 anti-wear hydraulic oil to lubricate and cool the wire rod.

[0049]The Φ6mm TA...

Embodiment 2

[0051] This embodiment is used to illustrate the diameter reduction method of the TA1 wire rod of Φ6mm→Φ4.5mm by swaging.

[0052] A. Adjust the heat-treated Φ6mm wire with the straightening device equipped at the entrance of the swaging machine until the straightness is less than 8mm / m, and then get stuck at the entrance of the swaging machine;

[0053] B. Replace the swaging machine with a Φ5mm mold, and use the swaging machine to reduce the diameter of the Φ6mm wire straightened in step A to Φ5mm at one time;

[0054] C. After adjusting the Φ5mm wire rod obtained in step B until the straightness is less than 9mm / m, it is stuck at the entrance of the swaging machine;

[0055] D. Replace the swaging machine with a Φ4.5mm mold, and use the swaging machine to reduce the diameter of the Φ5mm wire straightened in step C to Φ4.5mm at one time;

[0056] E. During the reducing process described in step B and step D, use DTE46 anti-wear hydraulic oil to lubricate and cool the wire r...

Embodiment 3

[0059] This embodiment is used to illustrate the diameter reduction method of the TB14 wire rod of Φ8mm→Φ6mm by swaging.

[0060] A. After the heat-treated Φ8mm wire is adjusted to a straightness of less than 9mm / m by the straightening device equipped at the entrance of the swaging machine, it is stuck at the entrance of the swaging machine;

[0061] B. Replace the swaging machine with a Φ7mm mold, and use the swaging machine to reduce the diameter of the Φ8mm wire straightened in step A to Φ7mm at one time;

[0062] C. After adjusting the Φ7mm wire rod obtained in step B until the straightness is less than 9mm / m, it is stuck at the entrance of the swaging machine;

[0063] D. Replace the swaging machine with a Φ6mm mold, and use the swaging machine to reduce the diameter of the Φ7mm wire straightened in step C to Φ6mm at one time;

[0064] E. During the reducing process described in step B and step D, use DTE46 anti-wear hydraulic oil to lubricate and cool the wire rod.

[...

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Abstract

The invention relates to the technical field of titanium alloy wire preparation, and discloses a method for increasing yield rate of titanium alloy wire by rotary forging. The method comprises the method of A, straightening a heat-treated wire and jamming the heat-treated wire at the entrance of a swaging machine; B. using the swaging machine to perform the first rotary swaging of a straightened wire; C. straightening an after rotary swaging wire and jamming the after rotary swaging wire at the entrance of the swaging machine; D. using the swaging machine to perform the second rotary swaging of a straightened wire; E. and using the anti-wear hydraulic oil to lubricate and cool a wire. This method reduces the diameter of the wire through two rotary swaging. By controlling the deformation and total deformation of each swaging pass, the surface qualities of materials after rotary swaging are effectively improved; the use of a die close to the target size not only improves the efficiency of rotary forging, but also makes the surface of the materials after rotary forging more smooth. Cold rotary forging during the diameter reduction process avoids the serious oxidation of the material surface and improves the material yield.

Description

technical field [0001] The invention relates to the technical field of preparation of titanium alloy wires, in particular to a method for improving the yield of titanium alloy wires by swaging. Background technique [0002] Titanium alloys have been widely used in aerospace and energy fields because of their high specific strength, good oxidation resistance and thermal corrosion resistance. [0003] As a method of titanium alloy diameter reduction, swaging has many advantages: there is additional compressive stress on the surface of the material after swaging, and the bending strength of the material is improved; the surface of the material after swaging is smooth; the precision advantage of swaging products; The lateral flow of material in the swaging processing area is restricted, which improves the axial extension efficiency of the material, and the stress state of the three-dimensional compression in the material processing area is conducive to the deformation of the mat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21F5/00B21F1/02
CPCB21F1/02B21F5/00
Inventor 申学良唐新新王立亚郑帮智
Owner CHENGDU ADVANCED METAL MATERIALS IND TECH RES INST CO LTD
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