CN107983961A - A kind of titanium alloy cylinder locking-type folding system high temperature insostatic pressing (HIP) manufacturing process - Google Patents
A kind of titanium alloy cylinder locking-type folding system high temperature insostatic pressing (HIP) manufacturing process Download PDFInfo
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- CN107983961A CN107983961A CN201710827614.0A CN201710827614A CN107983961A CN 107983961 A CN107983961 A CN 107983961A CN 201710827614 A CN201710827614 A CN 201710827614A CN 107983961 A CN107983961 A CN 107983961A
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- titanium alloy
- mould
- jacket
- high temperature
- hip
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/12—Both compacting and sintering
- B22F3/14—Both compacting and sintering simultaneously
- B22F3/15—Hot isostatic pressing
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
- Powder Metallurgy (AREA)
Abstract
The present invention proposes a kind of titanium alloy cylinder locking-type folding system high temperature insostatic pressing (HIP) manufacturing process.Prepared by the preparation of this method including mould, jacket and the selection of spherical powder, high temperature insostatic pressing (HIP) pre-treatment, hot isostatic pressing control and post-processing.A kind of titanium alloy cylinder locking-type folding system high temperature insostatic pressing (HIP) manufacturing process proposed by the present invention is when being consolidated, being shaped to titanium alloy powder using hot isostatic pressing technique, the mode for taking inner mould and exterior core to coordinate, this method of feature of forming titanium alloy part can complete feature shaping, lift the forming efficiency of part, the processing of later stage inner surface is reduced, shortens the process-cycle.
Description
Technical field
The invention belongs to aerospace manufacturing field, is rolled over more particularly to Powder hot isostatic pressure forming titanium alloy cylinder locking-type
The aspect of folded system high temperature insostatic pressing (HIP) shaping.
Background technology
Powder hot isostatic pressure technology, be it is a kind of be subject to using part in closed pressure vessel it is each to impartial ultra high pressure
The advanced manufacturing technology that state is formed.This technology is by stock utilization is high, but nothing is cut less for high in machining efficiency realization
Cut, materials saving the advantages that, the application field of its product constantly expands, and has particularly obtained fortune in aerospace manufacturing field
With.
It is not only time-consuming according to traditional process for machining in forming titanium alloy cylinder locking-type folding system correlated parts,
And waste of material is serious, labyrinth can not even manufacture.Casting can shape labyrinth and improve stock utilization, but titanium
Extremely complex with the casting technique of the special material such as nickel, part performance is difficult to control；Forging can effectively improve part performance, but need
Expensive precision die and large-scale equipment special are wanted, manufacture is of high cost.And the heat for using interior shape mould and shape mould to coordinate
Isostatic pressed method, shapes related titanium alloy component, the shortcomings that can overcoming process above, and realizes that the later stage processes or without processing less
Purpose.
The content of the invention
Titanium alloy cylinder locking-type folding system high temperature insostatic pressing (HIP) manufacturing process provided by the invention includes carrying out down in order
Row step：
1) related die is prepared according to the feature of titanium alloy cylinder locking-type folding system part, due to present invention shaping two
A part, is coordinated using inner mould and exterior core.
2) shaping jacket is prepared, rational jacket is processed according to mold shape and part shape design, which includes
Cylinder that top plate and plate-side plate welding form, bottom plate and with the upper cover plate for vacuumizing hole, for ease of welding and saving material,
Jacket is using profile-followed design.
3) mould is moved in the moving process such as welding, transport in order to prevent, and not only bottom plate processes mould progress
Location hole, while prepare the fixation upper plate of inner mould.
4) root is prepared according to the materials demand of titanium alloy cylinder locking-type folding system part using plasma rotating electrode process
Go out spherical titanium alloy powder, and it is spare to screen out 100-200 mesh powders.
5) mould is mounted on bottom plate in a manner of base is directed downwardly, if mould or bottom plate hole machined caused there are error
It is full of assembling, the tight fit of mould and bottom plate is realized by the way of manual polishing, fixes the effect of contraction of upper plate in addition, effectively
Ground prevents dislocation and movement of the mould during high temperature insostatic pressing (HIP) shapes, and the profile and jacket of mould form the storage sky of powder
Between, then the above-mentioned spherical titanium alloy powder prepared is loaded in cylinder, and make it by mechanical oscillation or artificial vibration
It is closely knit.
6) upper cover plate is placed at openings in the ceiling and soldering and sealing is good.
7) the above-mentioned jacket equipped with mould is placed in heating furnace and heated, passed through at high temperature using the equipment vacuumized
Vacuum tube carries out vacuumize process to jacket inside.
8) above-mentioned evacuated jacket is placed in hot isostatic apparatus, makes spherical titanium alloy at high temperature under high pressure
Powder consolidation shapes, and under the action of interior outer mold, forms the feature of titanium alloy component.
9) jacket is removed using the method for mechanical processing, the outer of titanium alloy component is processed using conventional machine-tooled method
Portion's shape, thus obtains the semi-finished product of the titanium alloy component embedded with mould.
10) inner mould, recycling are machined, be finally formed separately satisfactory using the mode of corrosion processing
Titanium alloy component.
11) material of inner mould is nickel base superalloy GH4169 in the step 1, and the material of exterior core is 45#
Inner mould and exterior core, are embedded into bottom plate by Steel material by way of manual polishing.The processing and manufacturing of interior core
It is processed using lathe, surface is processed by shot blasting, makes surface smooth.
12) 304 stainless steel of the cylinder of jacket and upper cover plate material selection in the step 2, bottom plate use 45# Steel materials.
13) temperature of heating furnace is 400 DEG C in the step 7, and the vacuum inside jacket reaches 10-6Pa, due to inside
Have graphite core, jacket it is certain during not be inverted.
14) the interior temperature for making hot isostatic apparatus is warming up to 900 DEG C when hip treatment condition 2 is small in the step 8,
When soaking time is 3 small；When 2 is small, the interior internal pressure for making hot isostatic apparatus reaches 130MPa at the same time, while pressurize 3 is small
When, when decrease temperature and pressure is 1 small.
15) titanium alloy cylinder locking-type folding system high temperature insostatic pressing (HIP) manufacturing process provided by the invention is in hot isostatic pressing technique
Titanium alloy powder is consolidated, is shaped, the mode for taking inner mould and exterior core to coordinate, so as to reach formation of parts portion
Dtex, which is sought peace, reduces the purpose of post-production.This method can greatly improve design of part intensity in titanium alloy, lift part
Forming efficiency, reduce later stage inner surface processing, shorten the process-cycle.
Brief description of the drawings
When Fig. 1 is using titanium alloy cylinder locking-type folding system high temperature insostatic pressing (HIP) manufacturing process formation of parts provided by the invention
The structure diagram of part A formed thereby.
When Fig. 2 is using titanium alloy cylinder locking-type folding system high temperature insostatic pressing (HIP) manufacturing process formation of parts provided by the invention
The structure diagram of part B formed thereby.
When Fig. 3 is using titanium alloy cylinder locking-type folding system high temperature insostatic pressing (HIP) manufacturing process formation of parts provided by the invention
The structure diagram of jacket.
When Fig. 4 is using titanium alloy cylinder locking-type folding system high temperature insostatic pressing (HIP) manufacturing process formation of parts provided by the invention
Structure diagram after the jacket dress point assembled.
When Fig. 5 is using titanium alloy cylinder locking-type folding system high temperature insostatic pressing (HIP) manufacturing process formation of parts provided by the invention
Remove the structure diagram of the titanium alloy semi-finished product of jacket, inner mould and exterior core.
Embodiment
It is quiet to titanium alloy cylinder locking-type folding system heat provided by the invention etc. with specific embodiment below in conjunction with the accompanying drawings
Pressing formation method is described in detail.
As Figure 1-Figure 5, titanium alloy cylinder locking-type folding system high temperature insostatic pressing (HIP) manufacturing process provided by the invention includes
The following steps carried out in order：
1) inner mould 1 as shown in Figure 4, internal mode are prepared according to the architectural feature of titanium alloy component 9 and part 10
Tool 2, fixed upper plate 3 and exterior core 4.The material of inner mould is nickel base superalloy GH4169, and the material of exterior core is
Inner mould and exterior core, are embedded into bottom plate by 45# Steel materials by way of manual polishing.The processing system of inner mould
Make and be processed using lathe, surface is processed by shot blasting, makes surface smooth.
2) rational jacket is processed according to mold shape and part shape design, which includes top plate as shown in Figure 3
With plate-side plate welding into cylinder 6, bottom plate 5 and with the upper cover plate 7 for vacuumizing hole.Cylinder and upper cover the sheet material choosing of jacket
304 stainless steels are selected, bottom plate uses 45# Steel materials, and the height and the distance between jacket and mould size of jacket are needed for
The thickness of the Titanium Powder last layer of filling determines.
3) mould is moved in the moving process such as welding, transport in order to prevent, and not only bottom plate processes mould progress
Location hole, while prepare the fixation upper plate 3 of inner mould.
4) according to the demand of titanium alloy component, titanium alloy as shown in Figure 4 is prepared using plasma rotating electrode process
Ti6Al4V powder 8, and it is spare to screen out 100-200 mesh powders.
5) base of inner mould 1,2 is embedded into bottom plate 5, and is constrained with fixed upper plate 3, exterior core is installed on
On bottom plate 5, the above-mentioned titanium alloy powder 8 prepared is loaded in jacket, is made by the way of mechanical oscillation or artificial vibration
It is fully closely knit；Purpose using spherical titanium alloy powder 8 is to make it easy to flow, and can be fully loaded into cavity.
6) top plate will be placed on the upper cover plate 7 for vacuumizing hole and plate-side plate welding is formed at the dress powder hole of cylinder 6, and welded
Seal.
7) the above-mentioned jacket assembled is placed in heating furnace, the temperature of heating furnace is 400 DEG C, is then passed through at high temperature
Vacuum equipment carries out vacuumize process using cover plate 7 is drawn up to jacket, and the vacuum inside jacket reaches 10-6Pa。
8) by it is above-mentioned vacuumized jacket and be placed in hot isostatic apparatus carry out hip treatment, 2 interior when small make heat etc.
The temperature of static pressure equipment is warming up to 900 DEG C, when soaking time is 3 small；When 2 is small, the interior inside for making hot isostatic apparatus is pressed at the same time
Power reaches 130MPa, while when pressurize 3 is small, decrease temperature and pressure for 1 it is small when.
9) jacket is removed using the method for mechanical processing, and titanium alloy component is processed using conventional machine-tooled method
Outer shape, thus obtains the semi-finished product 11 of the titanium alloy component embedded with mould, then the method by being machined respectively is completed
Part 9 and part 10.
10) according to the titanium alloy component and the difference of feature formed, corresponding inner mould 1,2 and exterior core 4
Shape is also different, and the treatment conditions of high temperature insostatic pressing (HIP) will be adjusted correspondingly according to the shape of 8 raw material of powder and part.
Claims (5)
- A kind of 1. titanium alloy cylinder locking-type folding system high temperature insostatic pressing (HIP) manufacturing process, it is characterised in that：The titanium alloy component Manufacturing process includes the following steps carried out in order：1) associated inner mould 1,2 is prepared according to the feature of titanium alloy cylinder locking-type folding system part (9) and part (10) With exterior core 4.2) shaping jacket is prepared, rational jacket is processed according to mold shape and part shape design, which includes top plate The cylinder (6) that is formed with plate-side plate welding, bottom plate (5) and with the upper cover plate (7) for vacuumizing hole, for ease of welding and saving Material, jacket is using profile-followed design.3) mould is moved in the moving process such as welding, transport in order to prevent, and not only bottom plate processes mould and positioned Hole, while prepare the fixation upper plate (3) of inner mould.4) root prepares ball according to the materials demand of titanium alloy cylinder locking-type folding system part using plasma rotating electrode process Shape titanium alloy powder (8), and it is spare to screen out 100-200 mesh powders.5) mould is mounted on bottom plate (5) in a manner of base is directed downwardly, if mould or bottom plate hole machined cause interference there are error Assembling, realizes the tight fit of mould and bottom plate by the way of manual polishing, fixes the effect of contraction of upper plate (3) in addition, has Prevent to effect dislocation and movement of the mould during high temperature insostatic pressing (HIP) shapes, the profile and jacket of mould form the storage of powder Space, then loads the above-mentioned spherical titanium alloy powder (8) prepared in cylinder, and passes through mechanical oscillation or artificial vibration Make its closely knit.6) upper cover plate (7) is placed at openings in the ceiling and soldering and sealing is good.7) the above-mentioned jacket equipped with mould is placed in heating furnace and heated, pass through upper cover using the equipment vacuumized at high temperature The vacuum tube of piece (7) carries out vacuumize process to jacket inside.8) above-mentioned evacuated jacket is placed in hot isostatic apparatus, makes spherical titanium alloy powder at high temperature under high pressure (8) consolidation, under the action of interior outer mold, forms the feature of titanium alloy component.9) jacket is removed using the method for mechanical processing, the exterior shape of titanium alloy component is processed using conventional machine-tooled method Shape, thus obtains the semi-finished product (11) of the titanium alloy component embedded with mould.10) inner mould, recycling are machined using the mode of corrosion processing, are finally formed separately satisfactory titanium and close Metal parts (9) and part (10).
- 2. the material of the inner mould described in claim 1 is nickel base superalloy GH4169, the material of exterior core is 45# steel Inner mould and exterior core, are embedded into bottom plate by material by way of manual polishing.The processing and manufacturing of interior core is adopted It is processed with lathe, surface is processed by shot blasting, makes surface smooth.
- 3. 304 stainless steel of cylinder and upper cover plate material selection of the jacket described in claim 1, bottom plate use 45# Steel materials.
- 4. the temperature of the heating furnace described in claim 1 is 400 DEG C, the vacuum inside jacket reaches 10-6Pa, since inside has Graphite core, jacket it is certain during not be inverted.
- The interior temperature for making hot isostatic apparatus is warming up to 900 when 5. hip treatment condition 2 according to claim 1 is small DEG C, when soaking time is 3 small；When 2 is small, the interior internal pressure for making hot isostatic apparatus reaches 130MPa, while pressurize 3 at the same time Hour, when decrease temperature and pressure is 1 small.
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| CN201710827614.0A CN107983961B (en) | 2017-09-14 | 2017-09-14 | Hot isostatic pressing forming method of titanium alloy cylinder lock type folding system |
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| CN201710827614.0A CN107983961B (en) | 2017-09-14 | 2017-09-14 | Hot isostatic pressing forming method of titanium alloy cylinder lock type folding system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108889958A (en) * | 2018-08-29 | 2018-11-27 | 北京航空航天大学 | A kind of titanium alloy supporting structure integral forming method |
| CN108971495A (en) * | 2018-08-08 | 2018-12-11 | 北京航空航天大学 | A kind of titanium alloy cylinder hemisphere hot isostatic pressing manufacturing process |
| CN109434114A (en) * | 2018-10-31 | 2019-03-08 | 北京航空航天大学 | A method of it is shaped for containing volatile cast |
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| JPH02163306A (en) * | 1988-12-15 | 1990-06-22 | Nippon Steel Corp | Manufacture of surface coating metal |
| CN102672174A (en) * | 2012-05-15 | 2012-09-19 | 华中科技大学 | Method for manufacturing integral annular case part by using hot isostatic pressing process |
| CN103255445A (en) * | 2013-04-18 | 2013-08-21 | 北京航空航天大学 | Method for molding hot isostatic pressure whole sheath with complicated surface |
| CN104439238A (en) * | 2014-12-16 | 2015-03-25 | 北京航空航天大学 | High-temperature high-pressure powder near-net forming method of aluminum alloy thin-wall cross-shaped rib plate structure |
| CN105414384A (en) * | 2015-12-31 | 2016-03-23 | 中国航空工业集团公司北京航空制造工程研究所 | Preparation method of metal egg tray interlayer structure |
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2017
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Patent Citations (5)
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|---|---|---|---|---|
| JPH02163306A (en) * | 1988-12-15 | 1990-06-22 | Nippon Steel Corp | Manufacture of surface coating metal |
| CN102672174A (en) * | 2012-05-15 | 2012-09-19 | 华中科技大学 | Method for manufacturing integral annular case part by using hot isostatic pressing process |
| CN103255445A (en) * | 2013-04-18 | 2013-08-21 | 北京航空航天大学 | Method for molding hot isostatic pressure whole sheath with complicated surface |
| CN104439238A (en) * | 2014-12-16 | 2015-03-25 | 北京航空航天大学 | High-temperature high-pressure powder near-net forming method of aluminum alloy thin-wall cross-shaped rib plate structure |
| CN105414384A (en) * | 2015-12-31 | 2016-03-23 | 中国航空工业集团公司北京航空制造工程研究所 | Preparation method of metal egg tray interlayer structure |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108971495A (en) * | 2018-08-08 | 2018-12-11 | 北京航空航天大学 | A kind of titanium alloy cylinder hemisphere hot isostatic pressing manufacturing process |
| CN108971495B (en) * | 2018-08-08 | 2021-01-19 | 北京航空航天大学 | Hot isostatic pressing forming method for hemispheres of titanium alloy gas cylinders |
| CN108889958A (en) * | 2018-08-29 | 2018-11-27 | 北京航空航天大学 | A kind of titanium alloy supporting structure integral forming method |
| CN109434114A (en) * | 2018-10-31 | 2019-03-08 | 北京航空航天大学 | A method of it is shaped for containing volatile cast |
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| CN107983961B (en) | 2020-09-22 |
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