CN103668025B - Titanium alloy high-temperature state eliminates stress correcting deformed heat treatment tooling and technique - Google Patents
Titanium alloy high-temperature state eliminates stress correcting deformed heat treatment tooling and technique Download PDFInfo
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- CN103668025B CN103668025B CN201310667395.6A CN201310667395A CN103668025B CN 103668025 B CN103668025 B CN 103668025B CN 201310667395 A CN201310667395 A CN 201310667395A CN 103668025 B CN103668025 B CN 103668025B
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Abstract
The present invention relates to a kind of titanium alloy high-temperature state to eliminate stress correcting deformed heat treatment tooling, fit at the upper surface of clamp base and the lower surface of part to be heated, be provided with preset pieces at the two ends of clamp base, the fixed frame of inverted u-shaped structure is flexibly connected with clamp base by pin; Arrange power pillar in the below of fixed frame, the below of power pillar connects clamp, and the lower surface profile of clamp is consistent with the upper surface profile of part to be heated, and the upper surface of the lower surface of clamp and part to be heated is running fit; The thermal expansivity of its medium power pillar is greater than the coefficient of expansion of frock remaining parts.This technique applies pressure to workpiece at high operating temperatures, effectively can eliminate welding stress, can correct part shape again, ensures the novel hidden lino removal method of the theoretical profile of titanium alloy component.
Description
Technical field
The present invention relates to a kind of titanium alloy high-temperature state to eliminate stress correcting deformed heat treatment tooling and technique, belong to a kind of heat treating method.
Background technology
At present, in titanium alloy hidden lino removal field, all adopt Tool clamp structure, choose and manufacture heat treatment tooling with the material of titanium alloy characteristic close, during use, part surfaces externally and internally pad pasting is compressed, make clamp by drift, in heat treatment process, though workpiece stress can discharge, distortion can not once be eliminated completely.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of titanium alloy high-temperature state and eliminates stress correcting deformed heat treatment tooling and technique, this technique applies pressure to workpiece at high operating temperatures, effectively can eliminate welding stress, can part shape be corrected again, ensure the novel hidden lino removal method of the theoretical profile of titanium alloy component.
For overcoming the above problems, concrete technical scheme of the present invention is as follows: a kind of titanium alloy high-temperature state eliminates stress correcting deformed heat treatment tooling, fit at the upper surface of clamp base and the lower surface of part to be heated, be provided with preset pieces at the two ends of clamp base, the fixed frame of inverted u-shaped structure is flexibly connected with clamp base by pin; Arrange power pillar in the below of fixed frame, the below of power pillar connects clamp, and the lower surface profile of clamp is consistent with the upper surface profile of part to be heated, and the upper surface of the lower surface of clamp and part to be heated is running fit; The thermal expansivity of its medium power pillar is greater than the coefficient of expansion of frock remaining parts.
By the technique that above-mentioned frock is heat-treated, part to be heated is positioned on clamp base, and be connected with clamp with clamp base with the fixed frame of power pillar; When heating temperatures is to the top temperature of specifying, the thermal expansion of power pillar is greater than other parts, drives clamp to extend to part direction, is compressed by part to be heated and ensure its theoretical profile.
By technical scheme of the present invention, can at high operating temperatures, the difference that have employed thermal expansion amount applies pressure to workpiece and corrects shape thermal treatment, thus effectively discharges welding stress, recovers the theoretical profile of part, ensure that part manufacturing accuracy.Utilize this frock, compact construction simultaneously, easy to use, improve the sizing precision of titanium alloy component.
Accompanying drawing explanation
Fig. 1 is that titanium alloy high-temperature state eliminates stress the structural representation of correcting deformed heat treatment tooling.
Embodiment
As shown in Figure 1, a kind of titanium alloy high-temperature state eliminates stress correcting deformed heat treatment tooling, fit at the upper surface of clamp base 1 and the lower surface of part to be heated 6, be provided with preset pieces at the two ends of clamp base 1, the fixed frame 3 of inverted u-shaped structure is flexibly connected with clamp base 1 by pin 2; In the below of fixed frame 3, power pillar 4 is set, the below of power pillar 4 connects clamp 5, the lower surface profile of clamp 5 is consistent with the upper surface profile of part 6 to be heated, and the upper surface of the lower surface of clamp 5 and part to be heated 6 is running fit, the thermal expansion amount of the gap power pillar 4 of this running fit; The thermal expansivity of its medium power pillar 4 is greater than the coefficient of expansion of frock remaining parts, when concrete application, pass through computer simulation, determine installation site and the tool structure intensity of the size of power pillar, material, power pillar part, thus ensure that the lower surface profile of clamp 5 and the upper surface of part to be heated 6 are fitted, namely effectively welding stress is released, the guaranteed thermal treatment precision of part.
By the technique that above-mentioned frock is heat-treated, concrete steps are: positioned on clamp base 1 by part 6 to be heated, and are connected with clamp 5 with clamp base 1 with the fixed frame 3 of power pillar 4; When heating temperatures is to the top temperature of specifying, power pillar 4 thermal expansion is greater than other parts, drives clamp 5 to extend to part direction, is compressed by part 6 to be heated and ensure its theoretical profile.
Claims (2)
1. a titanium alloy high-temperature state eliminates stress correcting deformed heat treatment tooling, it is characterized in that: fit at the upper surface of clamp base (1) and the lower surface of part to be heated (6), be provided with preset pieces at the two ends of clamp base (1), the fixed frame (3) of inverted u-shaped structure is flexibly connected with clamp base (1) by pin (2); In the below of fixed frame (3), power pillar (4) is set, the below of power pillar (4) connects clamp (5), the lower surface profile of clamp (5) is consistent with the upper surface profile of part to be heated (6), and the upper surface of the lower surface of clamp (5) and part to be heated (6) is running fit; The thermal expansivity of its medium power pillar (4) is greater than the coefficient of expansion of frock remaining parts.
2. a technique of heat-treating by frock according to claim 1, it is characterized in that: part to be heated (6) is positioned on clamp base (1), and be connected with clamp (5) with clamp base (1) with the fixed frame (3) of power pillar (4); When heating temperatures is to the top temperature of specifying, power pillar (4) thermal expansion is greater than other parts, drives clamp (5) to extend to part direction, is compressed by part to be heated (6) and ensure its theoretical profile.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310667395.6A CN103668025B (en) | 2013-12-11 | 2013-12-11 | Titanium alloy high-temperature state eliminates stress correcting deformed heat treatment tooling and technique |
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| CN201310667395.6A CN103668025B (en) | 2013-12-11 | 2013-12-11 | Titanium alloy high-temperature state eliminates stress correcting deformed heat treatment tooling and technique |
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| CN103668025A CN103668025A (en) | 2014-03-26 |
| CN103668025B true CN103668025B (en) | 2015-10-28 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105499323B (en) * | 2015-12-03 | 2017-10-24 | 贵州安吉航空精密铸造有限责任公司 | A kind of hot shape righting tool of alloy special-shaped titanium structure investment-casting |
| CN106756687A (en) * | 2016-11-21 | 2017-05-31 | 贵州安吉航空精密铸造有限责任公司 | A kind of straightening method of alloy complex axle construction investment-casting long |
| CN106381373A (en) * | 2016-11-25 | 2017-02-08 | 沈阳黎明航空发动机(集团)有限责任公司 | Correction method and device for plate type multilayered structure titanium alloy parts |
| CN107962310B (en) * | 2017-11-10 | 2020-08-07 | 北京航星机器制造有限公司 | Method for improving deformation consistency of joint and base metal through post-welding pre-deformation |
| CN109371346B (en) * | 2018-11-23 | 2020-10-23 | 中国航发沈阳黎明航空发动机有限责任公司 | Titanium alloy stator blade heat treatment deformation control method |
| CN112795766B (en) * | 2020-12-09 | 2022-05-27 | 北京星航机电装备有限公司 | Annealing and shape correcting method for high-temperature alloy welding part |
| CN114908240A (en) * | 2022-06-01 | 2022-08-16 | 沈阳飞机工业（集团）有限公司 | Heat treatment method of TC4 titanium alloy special-shaped structural part with closed angle area |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2365229Y (en) * | 1998-12-25 | 2000-02-23 | 邓永茹 | Special frock for powder metallurgy ring heat treatment |
| CN202804421U (en) * | 2012-07-27 | 2013-03-20 | 上海无线电设备研究所 | Anti-deformation clamp for planar antenna brazing |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006175480A (en) * | 2004-12-22 | 2006-07-06 | Nissan Motor Co Ltd | Method for correcting metallic formed product |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2365229Y (en) * | 1998-12-25 | 2000-02-23 | 邓永茹 | Special frock for powder metallurgy ring heat treatment |
| CN202804421U (en) * | 2012-07-27 | 2013-03-20 | 上海无线电设备研究所 | Anti-deformation clamp for planar antenna brazing |
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| CN103668025A (en) | 2014-03-26 |
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