A method for shaping the mandrel to elongate the ta15 high cylinder

A mandrel and high cylinder technology, which is applied in the field of cylinder forging, can solve the problems of high cost, cumbersome forging process, and reduce production cost, and achieve high material utilization rate, increase material utilization rate, and reduce blanking weight.

Active Publication Date: 2021-08-20
GUIZHOU AVIATION TECHN DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The TC4 titanium alloy cylindrical part forged by the present invention has fewer and smoother inner and outer peripheral surfaces and end surface cracks after the ladle cover is removed, which obviously improves the utilization rate of the titanium alloy material and the quality of the forging billet and reduces the production cost. In the case of no reduction in production efficiency, the cost is saved by more than 26% compared with that before the improvement; but the forging process provided by the invention is cumbersome, and the cost is still relatively high

Method used

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  • A method for shaping the mandrel to elongate the ta15 high cylinder
  • A method for shaping the mandrel to elongate the ta15 high cylinder
  • A method for shaping the mandrel to elongate the ta15 high cylinder

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Experimental program
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Effect test

Embodiment 1

[0035] A method for shaping a mandrel to elongate a TA15 high cylinder, comprising the following steps:

[0036] (1) Blanking blank: According to the size of the blank, the TA15 bar raw material is blanked and sawed to obtain a TA15 blank; the size of the blank is (Φ300×706mm);

[0037] The main chemical element content of the TA15 bar is as follows in terms of mass percentage: 0.099% Fe, 0.042% C, 0.004% N, 0.0007% H, 0.12% O, and the balance elements are Ti and unavoidable impurities , and the total amount of impurities ≤ 0.30, single impurity content ≤ 0.10;

[0038] (2) Heating and heat preservation: heat the sawed TA15 billet to 40±10°C below the phase transition point and heat preservation treatment. The heat preservation time is: the effective thickness of the bar × 6min / 10mm;

[0039](3) Punching and hole expansion: Punch and expand the TA15 blank that has been heat-preserved above to obtain a rectangular ring blank 1[Φ(366±10)×Φ(130±10)×(520±6)mm ]; The amount of de...

Embodiment 2

[0046] A method for shaping a mandrel to elongate a TA15 high cylinder, comprising the following steps:

[0047] (1) Blanking blank: According to the size of the blank, the TA15 bar raw material is blanked and sawed to obtain a TA15 blank; the size of the blank is (Φ300×706mm);

[0048] The main chemical element content of the TA15 bar is as follows in terms of mass percentage: 0.099% Fe, 0.042% C, 0.004% N, 0.0007% H, 0.12% O, and the balance elements are Ti and unavoidable impurities , and the total amount of impurities ≤ 0.30, single impurity content ≤ 0.10;

[0049] (2) Heating and heat preservation: heat the sawed TA15 billet to 40±10°C below the phase transition point and heat preservation treatment. The heat preservation time is: the effective thickness of the bar × 6min / 10mm;

[0050] (3) Punching and hole expansion: Punch and expand the TA15 blank that has been heat-preserved above to obtain a rectangular ring blank 1[Φ(366±10)×Φ(130±10)×(520±6)mm ]; The amount of d...

Embodiment 3

[0057] A method for shaping a mandrel to elongate a TA15 high cylinder, comprising the following steps:

[0058] (1) Blanking blank: According to the size of the blank, the TA15 bar raw material is blanked and sawed to obtain a TA15 blank; the size of the blank is (Φ300×706mm);

[0059] The main chemical element content of the TA15 bar is as follows by mass percentage: 0.057% of Fe, 0.0089% of C, 0.0054% of N, 0.0022% of H, 0.14% of O, and the remaining elements are Ti and unavoidable impurities , and the total amount of impurities ≤ 0.30, single impurity content ≤ 0.10;

[0060] (2) Heating and heat preservation: heat the sawed TA15 billet to 40±10°C below the phase transition point and heat preservation treatment. The heat preservation time is: the effective thickness of the bar × 6min / 10mm;

[0061] (3) Punching and hole expansion: Punch and expand the TA15 blank that has been heat-preserved above to obtain a rectangular ring blank 1[Φ(366±10)×Φ(130±10)×(520±6)mm ]; The a...

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PUM

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Abstract

The invention belongs to the technical field of tube forging forming, in particular a method for shaping a mandrel to elongate a TA15 high tube, comprising: blanking; heating and heat preservation; punching and expanding holes; Long; the horse frame is reamed and formed. In the present invention, the blank is subjected to punching, hole expansion, and horse frame reaming, and then the mandrel is elongated. The inner diameter of the forging can be controlled within 7mm, which can control the forging size out-of-tolerance problem to the greatest extent, and reduce the weight of blanking. Improve material utilization; at the same time solve the problem of high difficulty in blank punching in the forging process of high-barrel parts.

Description

technical field [0001] The invention belongs to the technical field of barrel forging forming, in particular to a shaping method for a mandrel elongating a TA15 high barrel. Background technique [0002] Titanium and titanium alloys are widely used in aerospace, weapons, nuclear energy, petroleum, chemical metallurgy, machinery, ships, ocean development, and seawater desalination due to their low density, high specific strength, good corrosion resistance, and excellent high-temperature and low-temperature performance. As well as medical and health, sports and leisure industries. With the increasing application of titanium and titanium alloys, the demand for titanium and titanium alloy materials is not limited to conventional materials such as tubes, rods, and plates, but various standard parts such as thin strips, profiles, large rings, and large diameter cylindrical parts. Higher requirements are put forward for the processing of titanium and titanium alloys. The large-di...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/00
CPCB23P15/00
Inventor 胡元伟宋捷王华东刘朝辉杨家典罗鸿飞李景鹏
Owner GUIZHOU AVIATION TECHN DEV
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