CN111876706A - Heat treatment method of thin-wall damage tolerance type TC4-DT titanium alloy part - Google Patents
Heat treatment method of thin-wall damage tolerance type TC4-DT titanium alloy part Download PDFInfo
- Publication number
- CN111876706A CN111876706A CN202010615858.4A CN202010615858A CN111876706A CN 111876706 A CN111876706 A CN 111876706A CN 202010615858 A CN202010615858 A CN 202010615858A CN 111876706 A CN111876706 A CN 111876706A
- Authority
- CN
- China
- Prior art keywords
- heat treatment
- thin
- titanium alloy
- alloy part
- wall damage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 109
- 229910001069 Ti alloy Inorganic materials 0.000 title claims abstract description 86
- 238000000034 method Methods 0.000 title claims abstract description 48
- 238000000137 annealing Methods 0.000 claims abstract description 33
- 238000003754 machining Methods 0.000 claims abstract description 31
- 238000003466 welding Methods 0.000 claims abstract description 18
- 238000010894 electron beam technology Methods 0.000 claims abstract description 12
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 20
- 238000001816 cooling Methods 0.000 claims description 17
- 230000008569 process Effects 0.000 claims description 17
- 229910052786 argon Inorganic materials 0.000 claims description 10
- 238000004321 preservation Methods 0.000 claims description 3
- 238000012545 processing Methods 0.000 abstract description 14
- 238000005520 cutting process Methods 0.000 abstract description 8
- 238000012797 qualification Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 206010028980 Neoplasm Diseases 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/16—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of other metals or alloys based thereon
- C22F1/18—High-melting or refractory metals or alloys based thereon
- C22F1/183—High-melting or refractory metals or alloys based thereon of titanium or alloys based thereon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/02—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working in inert or controlled atmosphere or vacuum
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Welding Or Cutting Using Electron Beams (AREA)
Abstract
The invention discloses a heat treatment method of a thin-wall damage tolerance type TC4-DT titanium alloy part, which comprises the following steps: 1) before machining, carrying out primary annealing heat treatment on the thin-wall damage tolerance type TC4-DT titanium alloy part, and then machining the thin-wall damage tolerance type TC4-DT titanium alloy part to enable the thin-wall damage tolerance type TC4-DT titanium alloy part to be in a semi-finishing state; 2) placing the semi-finishing thin-wall damage tolerance type TC4-DT titanium alloy part in a vacuum welding furnace for 1-2h for primary vacuum electron beam welding; 3) then putting the workpiece into a semi-finishing heat treatment tool, putting the workpiece into an annealing furnace for vacuum heat treatment, and carrying out primary vacuum heat treatment; 4) then taking out, carrying out mechanical processing to enable the workpiece to be in a finish machining state, and then putting the workpiece into a finish machining heat treatment tool; 5) and then carrying out secondary vacuum heat treatment through an annealing furnace of vacuum heat treatment. The invention effectively solves the stress deformation problem of the thin-wall damage tolerance type TC4-DT titanium alloy part in cutting processing, not only stabilizes the processing dimension, but also ensures that the dimensional tolerance and the geometric tolerance of the part meet the technical requirements.
Description
Technical Field
The invention relates to the technical field of titanium alloy part processing, in particular to a heat treatment method of a thin-wall damage tolerance type TC4-DT titanium alloy part.
Background
Thin-wall damage tolerant TC4-DT titanium alloy parts are increasingly and most commonly used in the manufacturing of the aerospace industry. However, there are more difficulties in machining parts, which are mainly manifested as: the tissue is easy to split at high temperature, and the phenomenon of sticking a cutter is easy to generate during cutting at high temperature and high pressure to form accumulated bits and tumors; the part is easy to deform during cutting and machining, and the dimensional tolerance and the geometric tolerance of the part are influenced; the residual stress after cutting is large, so that the dimensional and form and position tolerance is out of tolerance, and parts are scrapped; the size stability is poor, and the residual stress of material retention will release under the ambient temperature change of part, causes the part to warp, has greatly influenced the machining precision and the use reliability of part.
At present, in the machining of thin-wall damage tolerance type TC4-DT titanium alloy parts, machining stress is difficult to eliminate by a simple machining method, so that a heat treatment process is needed to eliminate stress deformation of the parts. However, in the conventional heat treatment process, since there are many unreasonable points in the aspects of heat treatment process arrangement, heat treatment condition selection, heat treatment frequency specification and the like, it is often difficult to achieve the purposes of eliminating part processing deformation and stabilizing processing size, and the dimensional tolerance and geometric tolerance of the part cannot meet the technical requirements.
Although the existing document, "heat treatment process of large thin-wall titanium alloy part, spao, jiang xilong, korean bright, chenying, metal treatment", discloses a heat treatment method for TC4 titanium alloy, with the development of technology, titanium alloy TC4-DT which has more excellent physical properties and is more suitable for being developed by the aerospace industry appears, no relevant report is found on how to eliminate stress of titanium alloy TC4-DT, and further research and study on titanium alloy TC4-DT are needed, so that the titanium alloy TC4-DT is better suitable for manufacturing aerospace parts.
Disclosure of Invention
The invention aims to provide a heat treatment method of a thin-wall damage tolerance type titanium alloy TC4-DT part, which effectively solves the problem of stress deformation of the thin-wall damage tolerance type TC4-DT titanium alloy part during cutting, not only stabilizes the processing size, but also ensures that the dimensional tolerance and the geometric tolerance of the part meet the technical requirements.
The invention is realized by the following technical scheme: a heat treatment method for a thin-wall damage tolerance type TC4-DT titanium alloy part comprises the following steps:
(1) before machining, annealing heat treatment is carried out on the thin-wall damage tolerance type TC4-DT titanium alloy part, then machining is carried out on the thin-wall damage tolerance type TC4-DT titanium alloy part, and the thin-wall damage tolerance type TC4-DT titanium alloy part is in a semi-finishing state;
(2) placing the semi-finishing state thin-wall damage tolerance type TC4-DT titanium alloy part into a vacuum welding furnace for primary vacuum electron beam welding;
(3) placing the thin-wall damage tolerance type TC4-DT titanium alloy part subjected to vacuum electron beam welding into a semi-finishing heat treatment tool, and placing the heat treatment tool provided with the thin-wall damage tolerance type TC4-DT titanium alloy part into an annealing furnace for vacuum heat treatment to perform primary vacuum heat treatment;
(4) taking out the thin-wall damage tolerance type TC4-DT titanium alloy part which is cooled and positioned in the semi-finishing heat treatment tool, machining the thin-wall damage tolerance type TC4-DT titanium alloy part to be in a finishing state, and then putting the thin-wall damage tolerance type TC4-DT titanium alloy part in the finishing heat treatment tool;
(5) and (3) placing the finish machining heat treatment tool provided with the thin-wall damage tolerance type TC4-DT titanium alloy part into an annealing furnace for vacuum heat treatment for secondary vacuum heat treatment, and then taking out the stress-relieved thin-wall damage tolerance type TC4-DT titanium alloy part.
The working principle of the technical scheme is that for a new part material TC4-DT titanium alloy, experimental trial and error are continuously carried out, and a heat treatment method for eliminating the stress of the thin-wall damage tolerance type TC4-DT titanium alloy part is finally explored. The method comprises the steps of annealing heat treatment before machining, vacuum electron beam welding, primary vacuum heat treatment, finish machining and secondary vacuum heat treatment, can solve the problem of stress deformation of the existing thin-wall damage tolerance type titanium alloy part during cutting machining, not only stabilizes the machining size, but also ensures that the dimensional tolerance and the geometric tolerance of the part meet the technical requirements, and improves the qualification rate of the thin-wall damage tolerance type titanium alloy part.
In order to better implement the method of the invention, further, in the step (1), specific process parameters of annealing heat treatment on the thin-wall damage tolerance type TC4-DT titanium alloy part are as follows: the heat treatment temperature is 650-800 ℃, the heat preservation is carried out for 2-3 hours, and after the annealing heat treatment is finished, air cooling is used.
In order to better implement the method of the invention, further, in the step (1), specific process parameters of annealing heat treatment on the thin-wall damage tolerance type TC4-DT titanium alloy part are as follows: the heat treatment temperature is 730 ℃, and the temperature is kept for 2 hours.
In order to better realize the method of the invention, in the step (2), after the thin-wall damage tolerance type TC4-DT titanium alloy part in the semi-finishing state is placed in a vacuum welding furnace for 1-2 hours, vacuum electron beam welding is carried out.
In order to better implement the method of the invention, further, the process parameters of performing one vacuum heat treatment on the thin-wall damage tolerance type TC4-DT titanium alloy part in the step (3) are as follows: the working vacuum degree of the annealing furnace is less than 1.0 multiplied by 10-3Pa, setting the vacuum heat treatment temperature to 700-800 ℃, keeping the temperature for 2-5 hours, cooling to below 100-300 ℃ along with the annealing furnace, and then filling argon for cooling.
In order to better implement the method of the invention, further, the process parameters of performing one vacuum heat treatment on the thin-wall damage tolerance type TC4-DT titanium alloy part in the step (3) are as follows: the working vacuum degree of the annealing furnace is less than 6.7 multiplied by 10-2Pa, setting the vacuum heat treatment temperature at 730 ℃, keeping the temperature for 3.5 hours, cooling to below 200 ℃ along with an annealing furnace, and introducing argon with the purity of 99.999% for cooling.
In order to better realize the method, the thin-wall damage tolerance type TC4-DT titanium alloy part is placed in a positioning datum of a semi-finishing heat treatment tool by adopting a numerical control machining process hole of the part, and a 150kg counterweight is added on the upper part of the semi-finishing heat treatment tool.
In order to better implement the method of the invention, further, the process parameters of performing one vacuum heat treatment on the thin-wall damage tolerance type TC4-DT titanium alloy part in the step (5) are as follows: the working vacuum degree of the annealing furnace is less than 1.0 multiplied by 10-3Pa, setting the vacuum heat treatment temperature to 550-650 ℃, keeping the temperature for 2-5 hours, and filling argon for cooling when the temperature is cooled to 100-350 ℃ along with the furnace.
In order to better implement the method of the invention, further, the process parameters of performing one vacuum heat treatment on the thin-wall damage tolerance type TC4-DT titanium alloy part in the step (5) are as follows: the working vacuum degree of the annealing furnace is less than 6.7 multiplied by 10-2Pa, setting the vacuum heat treatment temperature at 620 ℃, keeping the temperature for 3 hours, and filling argon with the purity of 99.999 percent for cooling when the furnace is cooled to 100 ℃.
In order to better realize the method, the thin-wall damage tolerance type TC4-DT titanium alloy part is placed into a finishing heat treatment tool, the web surface of the part is used as a positioning datum, and a 60kg counterweight is added to the upper part of the finishing heat treatment tool.
Compared with the prior art, the invention has the following advantages and beneficial effects:
the invention adopts annealing heat treatment before processing, vacuum electron beam welding, primary vacuum heat treatment, finish machining and secondary vacuum heat treatment, can solve the problem of stress deformation of the existing thin-wall damage tolerance type titanium alloy part in cutting processing, not only stabilizes the processing size, but also ensures that the dimensional tolerance and the geometric tolerance of the part meet the technical requirements, and improves the qualification rate of the thin-wall damage tolerance type titanium alloy part.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a process flow diagram of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following examples for the purpose of making clear the objects, process conditions and advantages of the present invention, but the embodiments of the present invention are not limited thereto, and various substitutions and modifications can be made according to the common technical knowledge and the conventional means in the art without departing from the technical idea of the present invention described above, and the specific examples described herein are only for explaining the present invention and are not intended to limit the present invention.
Example (b):
the embodiment provides a heat treatment method of a thin-wall damage tolerance type titanium alloy part, which comprises the following steps:
(1) and (3) carrying out primary annealing treatment on the damage tolerance type titanium alloy part before machining, wherein the heat treatment temperature is 730 ℃, keeping the temperature for 2 hours, and cooling in air. Carrying out mechanical processing after heat treatment;
(2) placing the thin-wall damage tolerance type titanium alloy part in a semi-finishing state into a vacuum welding furnace for 1-2h for primary vacuum electron beam welding;
(3) placing the thin-wall damage tolerance type titanium alloy part subjected to vacuum electron beam welding into a heat treatment tool (I), wherein the positioning reference adopts a numerical control machining process hole of the part and a 150kg counterweight mode on the upper part of the tool;
(4) placing the thin-wall damage tolerance type titanium alloy part and the heat treatment tool I into a vacuum heat treatment annealing furnace, wherein the working vacuum degree is less than 6.7 multiplied by 10 < -2 > Pa, the set temperature of the vacuum heat treatment is 730 ℃, the heat preservation time is 3.5 hours, and 99.999 percent argon is filled for cooling when the furnace is cooled to 200 ℃;
(5) placing the thin-wall damage tolerance type titanium alloy part in a finish machining state into a heat treatment tool (II), and positioning a web surface of a reference part and adding 60kg of weight on the upper part of the tool;
(6) and (3) putting the thin-wall damage tolerance type titanium alloy part and the heat treatment tool (II) into a vacuum heat treatment annealing furnace, keeping the working vacuum degree less than 6.7 multiplied by 10 < -2 > Pa, keeping the temperature for 3 hours at the set temperature of 620 ℃ in vacuum heat treatment, and filling 99.999 percent argon gas for cooling when the furnace is cooled to 100 ℃.
Wherein, the heat treatment tool (I) is a semi-finish machining heat treatment tool, and the heat treatment tool (II) is a finish machining heat treatment tool.
The invention adopts annealing heat treatment before processing, vacuum electron beam welding, primary vacuum heat treatment, finish machining and secondary vacuum heat treatment, can solve the problem of stress deformation of the existing thin-wall damage tolerance type titanium alloy part in cutting processing, not only stabilizes the processing size, but also ensures that the dimensional tolerance and the geometric tolerance of the part meet the technical requirements, and improves the qualification rate of the thin-wall damage tolerance type titanium alloy part.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A heat treatment method for a thin-wall damage tolerance type TC4-DT titanium alloy part is characterized by comprising the following steps:
(1) before machining, annealing heat treatment is carried out on the thin-wall damage tolerance type TC4-DT titanium alloy part, then machining is carried out on the thin-wall damage tolerance type TC4-DT titanium alloy part, and the thin-wall damage tolerance type TC4-DT titanium alloy part is in a semi-finishing state;
(2) placing the semi-finishing state thin-wall damage tolerance type TC4-DT titanium alloy part into a vacuum welding furnace for primary vacuum electron beam welding;
(3) placing the thin-wall damage tolerance type TC4-DT titanium alloy part subjected to vacuum electron beam welding into a semi-finishing heat treatment tool, and placing the heat treatment tool provided with the thin-wall damage tolerance type TC4-DT titanium alloy part into an annealing furnace for vacuum heat treatment to perform primary vacuum heat treatment;
(4) taking out the thin-wall damage tolerance type TC4-DT titanium alloy part which is cooled and positioned in the semi-finishing heat treatment tool, machining the thin-wall damage tolerance type TC4-DT titanium alloy part to be in a finishing state, and then putting the thin-wall damage tolerance type TC4-DT titanium alloy part in the finishing heat treatment tool;
(5) and (3) placing the finish machining heat treatment tool provided with the thin-wall damage tolerance type TC4-DT titanium alloy part into an annealing furnace for vacuum heat treatment for secondary vacuum heat treatment, and then taking out the stress-relieved thin-wall damage tolerance type TC4-DT titanium alloy part.
2. The heat treatment method for the thin-wall damage tolerance type TC4-DT titanium alloy part according to the claim 1, wherein the specific process parameters for annealing heat treatment of the thin-wall damage tolerance type TC4-DT titanium alloy part in the step (1) are as follows: the heat treatment temperature is 650-800 ℃, the heat preservation is carried out for 2-3 hours, and after the annealing heat treatment is finished, air cooling is used.
3. The heat treatment method for the thin-wall damage tolerance type TC4-DT titanium alloy part according to the claim 2, wherein the specific process parameters for annealing heat treatment of the thin-wall damage tolerance type TC4-DT titanium alloy part in the step (1) are as follows: the heat treatment temperature is 730 ℃, and the temperature is kept for 2 hours.
4. The heat treatment method for the thin-wall damage tolerant TC4-DT titanium alloy part according to claim 1 or 2, wherein in the step (2), the thin-wall damage tolerant TC4-DT titanium alloy part in a semi-finished state is placed in a vacuum welding furnace for 1-2 hours and then subjected to vacuum electron beam welding.
5. The heat treatment method for the thin-wall damage tolerance type TC4-DT titanium alloy part according to the claim 1 or 2, wherein the process parameters of the thin-wall damage tolerance type TC4-DT titanium alloy part in the step (3) for carrying out the one-time vacuum heat treatment are as follows: the working vacuum degree of the annealing furnace is less than 1.0 multiplied by 10-3Pa, setting the vacuum heat treatment temperature to 700-800 ℃, keeping the temperature for 2-5 hours, cooling to below 100-300 ℃ along with the annealing furnace, and then filling argon for cooling.
6. The heat treatment method of the thin-wall damage tolerance type TC4-DT titanium alloy part according to claim 5The method is characterized in that the technological parameters of the thin-wall damage tolerance type TC4-DT titanium alloy part subjected to the primary vacuum heat treatment in the step (3) are as follows: the working vacuum degree of the annealing furnace is less than 6.7 multiplied by 10-2Pa, setting the vacuum heat treatment temperature at 730 ℃, keeping the temperature for 3.5 hours, cooling to below 200 ℃ along with an annealing furnace, and introducing argon with the purity of 99.999% for cooling.
7. The heat treatment method for the thin-wall damage tolerance type TC4-DT titanium alloy part as claimed in claim 6, wherein the positioning datum for placing the thin-wall damage tolerance type TC4-DT titanium alloy part into the semi-finishing heat treatment tool is a numerical control machining process hole of the part, and a 150kg counterweight is added to the upper part of the semi-finishing heat treatment tool.
8. The heat treatment method for the thin-wall damage tolerance type TC4-DT titanium alloy part according to the claim 1 or 2, wherein the process parameters of the thin-wall damage tolerance type TC4-DT titanium alloy part in the step (5) for carrying out the one-time vacuum heat treatment are as follows: the working vacuum degree of the annealing furnace is less than 1.0 multiplied by 10-3Pa, setting the vacuum heat treatment temperature to 550-650 ℃, keeping the temperature for 2-5 hours, and filling argon for cooling when the temperature is cooled to 100-350 ℃ along with the furnace.
9. The heat treatment method for the thin-wall damage tolerant TC4-DT titanium alloy part according to claim 7, wherein the process parameters of the thin-wall damage tolerant TC4-DT titanium alloy part subjected to the vacuum heat treatment in the step (5) are as follows: the working vacuum degree of the annealing furnace is less than 6.7 multiplied by 10-2Pa, setting the vacuum heat treatment temperature at 620 ℃, keeping the temperature for 3 hours, and filling argon with the purity of 99.999 percent for cooling when the furnace is cooled to 100 ℃.
10. The heat treatment method for the thin-wall damage tolerance type TC4-DT titanium alloy part according to claim 8, wherein the thin-wall damage tolerance type TC4-DT titanium alloy part is placed in a finishing heat treatment tool by using a web surface of the part as a positioning benchmark, and a 60kg counterweight is added to the upper part of the finishing heat treatment tool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010615858.4A CN111876706A (en) | 2020-06-30 | 2020-06-30 | Heat treatment method of thin-wall damage tolerance type TC4-DT titanium alloy part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010615858.4A CN111876706A (en) | 2020-06-30 | 2020-06-30 | Heat treatment method of thin-wall damage tolerance type TC4-DT titanium alloy part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111876706A true CN111876706A (en) | 2020-11-03 |
Family
ID=73157393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010615858.4A Pending CN111876706A (en) | 2020-06-30 | 2020-06-30 | Heat treatment method of thin-wall damage tolerance type TC4-DT titanium alloy part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111876706A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113249667A (en) * | 2021-06-18 | 2021-08-13 | 北京煜鼎增材制造研究院有限公司 | Heat treatment method for obtaining high-toughness high-damage-tolerance dual-phase titanium alloy |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0466606B1 (en) * | 1990-07-13 | 1995-09-27 | Sumitomo Metal Industries, Ltd. | Process for manufacturing corrosion-resistant welded titanium alloy tubes and pipes |
| CN104630678A (en) * | 2015-01-30 | 2015-05-20 | 西北工业大学 | Preparation method of TC4 titanium alloy surface nanostructure |
| CN105798301A (en) * | 2016-05-12 | 2016-07-27 | 上海工程技术大学 | Stress Mitigation Method for TC4 Titanium Alloy Additive Manufactured Components Based on Dual Electron Beam |
| CN107116340A (en) * | 2017-05-18 | 2017-09-01 | 上海空间推进研究所 | Space flight large size, thin walled liner and its manufacture method |
| US20180340247A1 (en) * | 2017-05-23 | 2018-11-29 | Fusheng Precision Co., Ltd | Method for Manufacturing a Golf Club Head |
| CN109396441A (en) * | 2018-11-30 | 2019-03-01 | 中国航空工业集团公司沈阳飞机设计研究所 | A kind of heat treatment method of electron beam welding selective laser fusing formation of parts |
-
2020
- 2020-06-30 CN CN202010615858.4A patent/CN111876706A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0466606B1 (en) * | 1990-07-13 | 1995-09-27 | Sumitomo Metal Industries, Ltd. | Process for manufacturing corrosion-resistant welded titanium alloy tubes and pipes |
| CN104630678A (en) * | 2015-01-30 | 2015-05-20 | 西北工业大学 | Preparation method of TC4 titanium alloy surface nanostructure |
| CN105798301A (en) * | 2016-05-12 | 2016-07-27 | 上海工程技术大学 | Stress Mitigation Method for TC4 Titanium Alloy Additive Manufactured Components Based on Dual Electron Beam |
| CN107116340A (en) * | 2017-05-18 | 2017-09-01 | 上海空间推进研究所 | Space flight large size, thin walled liner and its manufacture method |
| US20180340247A1 (en) * | 2017-05-23 | 2018-11-29 | Fusheng Precision Co., Ltd | Method for Manufacturing a Golf Club Head |
| CN109396441A (en) * | 2018-11-30 | 2019-03-01 | 中国航空工业集团公司沈阳飞机设计研究所 | A kind of heat treatment method of electron beam welding selective laser fusing formation of parts |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113249667A (en) * | 2021-06-18 | 2021-08-13 | 北京煜鼎增材制造研究院有限公司 | Heat treatment method for obtaining high-toughness high-damage-tolerance dual-phase titanium alloy |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109439936B (en) | Preparation method of medium-strength high-toughness titanium alloy ultra-large-specification ring material | |
| JP7236569B2 (en) | High-strength stainless steel rotor and manufacturing method thereof | |
| JP5829213B2 (en) | Stress relaxation heat treatment of titanium alloy parts | |
| CN111074185B (en) | A heat treatment method that can effectively reduce the anisotropy of laser additive manufacturing of titanium alloys | |
| CN102218607B (en) | Pulse laser cutting method of bulk amorphous alloy | |
| CN111549259B (en) | Nickel-cobalt-based high-temperature alloy turbine disc and preparation method thereof | |
| CN104233125A (en) | Thin-wall aluminum alloy material tube-shell part cutting processing heat treatment process | |
| CN113042755A (en) | Heat treatment method of GH3536 high-temperature alloy for additive manufacturing | |
| CN110724797B (en) | A processing method of PH13-8Mo parts for aviation | |
| CN113909805B (en) | TC4 titanium alloy high-precision curved thin-wall part machining method | |
| CN111730114A (en) | Milling method for aluminum alloy thin-wall web structural member | |
| CN114438298B (en) | High-temperature diffusion method and alloy steel | |
| CN116673500A (en) | Heat treatment method to improve the strength and plasticity of nickel-based alloy thin-walled components manufactured by additive manufacturing | |
| CN111876706A (en) | Heat treatment method of thin-wall damage tolerance type TC4-DT titanium alloy part | |
| CN109483166A (en) | High-precision metal ultra thin plate parts machining process | |
| CN115338353A (en) | Preparation process of high-uniformity TC25G high-temperature titanium alloy large-size fine-grain blisk | |
| CN107236918B (en) | The preparation method of beta-gamma TiAl alloy plate containing tiny lath-shaped γ recrystallized structure | |
| CN114672680B (en) | A step-by-step hot isostatic pressing method for additive manufacturing of nickel-based superalloys | |
| CN110904364B (en) | Preparation method of aluminum alloy target material | |
| CN106239036B (en) | A kind of preparation process of sheet porous structural single crystal super alloy part | |
| CN114952193B (en) | Large-size high-precision invar waveguide deformation control process | |
| CN116274781B (en) | A high-precision surface forging process for valve ball blanks | |
| CN109731935B (en) | Mold core blank for polycrystalline diamond wire drawing mold and cobalt removing method thereof | |
| Li et al. | Influence of grain morphology on the chip formation mechanisms of wrought and laser powder bed fusion (LPBF) fabricated alloy 718 | |
| CN104723040B (en) | Method for machining groove or blind hole in surface of tungsten plate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201103 |
|
| RJ01 | Rejection of invention patent application after publication |