CN107675112A - A kind of jacket deformation method of ultra-high-strength aluminum alloy - Google Patents
A kind of jacket deformation method of ultra-high-strength aluminum alloy Download PDFInfo
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- CN107675112A CN107675112A CN201710948327.5A CN201710948327A CN107675112A CN 107675112 A CN107675112 A CN 107675112A CN 201710948327 A CN201710948327 A CN 201710948327A CN 107675112 A CN107675112 A CN 107675112A
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- 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
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
- C22F1/053—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with zinc as the next major constituent
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Abstract
A kind of jacket deformation method of ultra-high-strength aluminum alloy, the present invention relates to deformation method field.The invention solves during the deformation of member it is existing cracking, streamline turbulence technical problem.Method：First, the densification of jet deposition blank；2nd, it is compound with sheath material；3rd, shove charge, it is upset；4th, car falls outer layer jacket；5th, die-forging forming.Crack initiation of the invention caused by secondary tension during effectively suppressing alloy deformation, improve the deformability of alloy；The restriction effect of jacket material considerably increases the dislocation density in alloy, promotes the formation of substructure, the Deformation structure of effective refining alloy；After jacket deforms, component even tissue is tiny, has complete preferably metal streamline feature, T6 state biaxial mechanical capabilities excellent.The jacket that the present invention is used for ultra-high-strength aluminum alloy deforms.
Description
Technical field
The present invention relates to deformation method field.
Background technology
Al-Zn-Mg-Cu systems (7XXX systems) alloy is the structure material material of most advantage in aircraft industry, as injection is heavy
The development of the flash set technologies such as product, Zn constituent contents are more than 10wt% in the series alloy, and the intensity of alloy is up to 800MPa
Even more high, but the poor plasticity of simultaneous and crystallized ability.The super high-strength alloy of these high-alloying contents is rear
During continuous rolling, forging etc. are hot worked, often cracked in the presence of secondary tension, although hot extrusion can make
Alloy reaches preferable consistency and Crack prevention germinating, but the strong crystallographic texture of As-extruded alloy and circulation arrargement cause
Alloy is difficult to carry out hot-working again, disk cake class primary structure member especially crucial to some, and required metal streamline is general
Along the radial distribution of component, as prefabricated blank streamline can be caused to fracture, be vortexed using the extruded rod with axial streamline feature
And the defects of disorderly.
The content of the invention
The invention solves existing cracking during the deformation of member, the technical problem of streamline turbulence, and provide a kind of super
The jacket deformation method of high strength alumin ium alloy.
A kind of jacket deformation method of ultra-high-strength aluminum alloy, is specifically carried out according to the following steps：
First, the spray to composition for Al- (9~12.5) Zn- (2.0~3.0) Mg- (1.5~2.0) Cu- (0.1~0.3) Zr
Penetrate deposition billet and carry out the pre- densification of high temperature insostatic pressing (HIP), the consistency ＞ 99.7% of jet deposition billet, is then adopted after processing
With wire cutting blanking, it is Ф 70 × 70mm cylindrical blanks that lathe, which is finish-machined to size, after blanking；
The 2nd, jacket that material is extruded to tubing for aviation 7075 is machined, and the jacket internal diameter after processing is 70mm,
Thickness is 12mm, and the blank for then obtaining step 1 smears lubricant, compound with sheath material, obtains combining blank；
3rd, it is 425~435 DEG C to control furnace temperature, shove charge after the combination blank spray lubricant that step 2 is obtained, insulation 1.5
~2h, isothermal jumping-up then is carried out using 1600 t hydraulic press, upper and lower chopping block preheating temperature is 400~430 DEG C, utilizes steel cushion block
Control the thickness of blank；
4th, car falls the outer layer jacket of blank after jumping-up, until sheath material whole car is fallen, obtains semi-finished product forging；
5th, the semi-finished product forging that step 4 obtains is heated to 430 DEG C, is incubated 1.5~2h, carry out die-forging forming, die forging
Technological parameter：Forging speed is 2~4mm/s, and mold preheating temperature is 400~430 DEG C, and press tonnage is 1600 tons, is completed
A kind of jacket deformation method of ultra-high-strength aluminum alloy.
The beneficial effects of the invention are as follows：
(1) change the equivalent stress state of blank, the tension of transfer stock outer ledge, effectively suppress alloy deformation mistake
Crack initiation caused by secondary tension in journey, improve the deformability of alloy；
(2) restriction effect of jacket material considerably increases the dislocation density in alloy, promotes the formation of substructure, effectively
The Deformation structure of refining alloy；
(3) after jacket deforms, component even tissue is tiny, has complete preferably metal streamline feature, T6 states two-way
Excellent in mechanical performance.
The jacket that the present invention is used for ultra-high-strength aluminum alloy deforms.
Brief description of the drawings
Fig. 1 is that the blank jacket of embodiment one deforms schematic diagram.
Embodiment
Technical solution of the present invention is not limited to the embodiment of act set forth below, in addition to each embodiment it
Between any combination.
Embodiment one：The jacket deformation method of a kind of ultra-high-strength aluminum alloy of present embodiment, specifically by following step
It is rapid to carry out：
First, the spray to composition for Al- (9~12.5) Zn- (2.0~3.0) Mg- (1.5~2.0) Cu- (0.1~0.3) Zr
Penetrate deposition billet and carry out the pre- densification of high temperature insostatic pressing (HIP), the consistency ＞ 99.7% of jet deposition billet, is then adopted after processing
With wire cutting blanking, it is Ф 70 × 70mm cylindrical blanks that lathe, which is finish-machined to size, after blanking；
The 2nd, jacket that material is extruded to tubing for aviation 7075 is machined, and the jacket internal diameter after processing is 70mm,
Thickness is 12mm, and the blank for then obtaining step 1 smears lubricant, compound with sheath material, obtains combining blank；
3rd, it is 425~435 DEG C to control furnace temperature, shove charge after the combination blank spray lubricant that step 2 is obtained, insulation 1.5
~2h, isothermal jumping-up then is carried out using 1600 t hydraulic press, upper and lower chopping block preheating temperature is 400~430 DEG C, utilizes steel cushion block
Control the thickness of blank；
4th, car falls the outer layer jacket of blank after jumping-up, until sheath material whole car is fallen, obtains semi-finished product forging；
5th, the semi-finished product forging that step 4 obtains is heated to 430 DEG C, is incubated 1.5~2h, carry out die-forging forming, die forging
Technological parameter：Forging speed is 2~4mm/s, and mold preheating temperature is 400~430 DEG C, and press tonnage is 1600 tons, is completed
A kind of jacket deformation method of ultra-high-strength aluminum alloy.
Embodiment two：Present embodiment is unlike embodiment one：Lubricant is machine in step 2
The mixed liquor of oil and graphite.It is other identical with embodiment one.
Embodiment three：Present embodiment is unlike embodiment one or two：Stove is controlled in step 3
Temperature is 430 DEG C.It is other identical with embodiment one or two.
Embodiment four：Unlike one of present embodiment and embodiment one to three：Pier in step 3
The chopping block length of side or diameter ＞ 240mm above and below when thick.It is other identical with one of embodiment one to three.
Embodiment five：Unlike one of present embodiment and embodiment one to four：Controlled in step 3
The thickness of base material is 20mm.It is other identical with one of embodiment one to four.
Embodiment six：Unlike one of present embodiment and embodiment one to five：Controlled in step 3
Mushrooming deformation speed≤4mm/s processed.It is other identical with one of embodiment one to five.
Embodiment seven：Unlike one of present embodiment and embodiment one to six：Car in step 4
The first turning since external diameter when cutting, turning to inner blank interface are all exposed, then bottom surface in turning, then turning surrounding.
It is other identical with one of embodiment one to six.
Embodiment eight：Unlike one of present embodiment and embodiment one to seven：Forged in step 5
It is 2~4mm/s to make speed, and mold preheating temperature is 410~420 DEG C.It is other identical with one of embodiment one to seven.
Beneficial effects of the present invention are verified using following examples：
Embodiment one：
A kind of jacket deformation method of ultra-high-strength aluminum alloy of the present embodiment, is specifically carried out according to the following steps：
First, high temperature insostatic pressing (HIP) is carried out to the jet deposition billet that composition is Al-11Zn-2.65Mg-1.5Cu-0.18Zr to cause in advance
Densification process, the consistency of jet deposition billet is 99.9% after processing, then using wire cutting blanking, lathe finishing after blanking
Work into size be Ф 70 × 70mm cylindrical blanks；
The 2nd, jacket that material is extruded to tubing for aviation 7075 is machined, and the jacket internal diameter after processing is 70mm,
Thickness is 12mm, and the blank for then obtaining step 1 smears lubricant, compound with sheath material, obtains combining blank；
3rd, it is 430 DEG C to control furnace temperature, shove charge after the combination blank spray lubricant that step 2 is obtained, is incubated 2h, then adopts
Isothermal jumping-up is carried out with 1600 t hydraulic press, upper and lower chopping block preheating temperature is 400 DEG C, and the thickness of blank is controlled using steel cushion block,
The thickness of blank is 20mm；
4th, car falls the outer layer jacket of blank after jumping-up, until sheath material whole car is fallen, obtains semi-finished product forging；
5th, the semi-finished product forging that step 4 obtains is heated to 430 DEG C, is incubated 2h, carry out die-forging forming, contour forging technique ginseng
Number：Forging speed is 3mm/s, and mold preheating temperature is 400 DEG C, and press tonnage is 1600 tons, completes a kind of strong aluminium of superelevation and closes
The jacket deformation method of gold.
Lubricant is the mixed liquor of machine oil and graphite in step 2；
The chopping block length of side is 250mm up and down when upset in step 3；
It is 3mm/s that mushrooming deformation speed is controlled in step 3.
The present embodiment blank jacket deforms schematic diagram, as shown in Figure 1.
The technique effect that the present embodiment reaches：
(1) change the equivalent stress state of blank, the tension of transfer stock outer ledge, effectively suppress alloy deformation mistake
Crack initiation caused by secondary tension in journey, improve the deformability of alloy；
(2) restriction effect of jacket material considerably increases the dislocation density in alloy, promotes the formation of substructure, effectively
The Deformation structure of refining alloy；
(3) after jacket deforms, component even tissue is tiny, has complete preferably metal streamline feature, T6 states two-way
Excellent in mechanical performance.
Claims (8)
1. the jacket deformation method of a kind of ultra-high-strength aluminum alloy, it is characterised in that this method is specifically carried out according to the following steps：
First, the injection that composition is Al- (9~12.5) Zn- (2.0~3.0) Mg- (1.5~2.0) Cu- (0.1~0.3) Zr is sunk
Product billet carries out the pre- densification of high temperature insostatic pressing (HIP), the consistency ＞ 99.7% of jet deposition billet after processing, then using line
Cutting stock, it is Ф 70 × 70mm cylindrical blanks that lathe, which is finish-machined to size, after blanking；
2nd, it is that aviation 7075 extrudes the jacket of tubing and is machined by material, the jacket internal diameter after processing is 70mm, thickness
For 12mm, the blank for then obtaining step 1 smears lubricant, compound with sheath material, obtains combining blank；
3rd, it is 425~435 DEG C to control furnace temperature, shove charge after the combination blank spray lubricant that step 2 is obtained, is incubated 1.5~2h,
Then isothermal jumping-up is carried out using 1600 t hydraulic press, upper and lower chopping block preheating temperature is 400~430 DEG C, is controlled using steel cushion block
The thickness of blank；
4th, car falls the outer layer jacket of blank after jumping-up, until sheath material whole car is fallen, obtains semi-finished product forging；
5th, the semi-finished product forging that step 4 obtains is heated to 430 DEG C, is incubated 1.5~2h, carry out die-forging forming, contour forging technique
Parameter：Forging speed is 2~4mm/s, and mold preheating temperature is 400~430 DEG C, and press tonnage is 1600 tons, is completed a kind of
The jacket deformation method of ultra-high-strength aluminum alloy.
2. the jacket deformation method of a kind of ultra-high-strength aluminum alloy according to claim 1, it is characterised in that moisten in step 2
Lubrication prescription is the mixed liquor of machine oil and graphite.
3. the jacket deformation method of a kind of ultra-high-strength aluminum alloy according to claim 1, it is characterised in that controlled in step 3
Furnace temperature processed is 430 DEG C.
A kind of 4. jacket deformation method of ultra-high-strength aluminum alloy according to claim 1, it is characterised in that pier in step 3
The chopping block length of side or diameter ＞ 240mm above and below when thick.
5. the jacket deformation method of a kind of ultra-high-strength aluminum alloy according to claim 1, it is characterised in that controlled in step 3
The thickness of base material is 20mm.
6. the jacket deformation method of a kind of ultra-high-strength aluminum alloy according to claim 1, it is characterised in that controlled in step 3
Mushrooming deformation speed≤4mm/s processed.
A kind of 7. jacket deformation method of ultra-high-strength aluminum alloy according to claim 1, it is characterised in that car in step 4
The first turning since external diameter when cutting, turning to inner blank interface are all exposed, then bottom surface in turning, then turning surrounding.
8. the jacket deformation method of a kind of ultra-high-strength aluminum alloy according to claim 1, it is characterised in that forged in step 5
It is 2~4mm/s to make speed, and mold preheating temperature is 410~420 DEG C.
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| CN201710948327.5A CN107675112A (en) | 2017-10-12 | 2017-10-12 | A kind of jacket deformation method of ultra-high-strength aluminum alloy |
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| CN201710948327.5A CN107675112A (en) | 2017-10-12 | 2017-10-12 | A kind of jacket deformation method of ultra-high-strength aluminum alloy |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110076337A (en) * | 2019-06-12 | 2019-08-02 | 齐齐哈尔翔科新材料有限公司 | A kind of multidirectional twin-stage restrained deformation device of aluminum matrix composite and its application method |
| CN113088839A (en) * | 2020-01-08 | 2021-07-09 | 核工业理化工程研究院 | Densification treatment method and application of spray-deposited ultrahigh-strength aluminum alloy and densified preform of ultrahigh-strength aluminum alloy |
| CN113102671A (en) * | 2021-04-06 | 2021-07-13 | 无锡透平叶片有限公司 | Die forging method for superhard aluminum alloy forging of cone-barrel-shaped revolving body |
| CN113802074A (en) * | 2021-08-04 | 2021-12-17 | 苏州奥拓博科新材料科技有限公司 | Hot isostatic pressing densification method suitable for spray deposition of high-strength aluminum alloy |
| CN113977207A (en) * | 2021-12-01 | 2022-01-28 | 天津双昊车用空调有限公司 | Processing technology of gas-liquid separator integrated barrel |
| CN114074167A (en) * | 2021-11-11 | 2022-02-22 | 上海工程技术大学 | Difficult-deformation aluminum alloy plate cake component and composite forming method thereof |
| CN115430836A (en) * | 2022-08-24 | 2022-12-06 | 广东省科学院资源利用与稀土开发研究所 | Preparation method and device of high-abundance rare earth cerium-based anisotropic nanocrystalline magnet |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110076337A (en) * | 2019-06-12 | 2019-08-02 | 齐齐哈尔翔科新材料有限公司 | A kind of multidirectional twin-stage restrained deformation device of aluminum matrix composite and its application method |
| CN113088839A (en) * | 2020-01-08 | 2021-07-09 | 核工业理化工程研究院 | Densification treatment method and application of spray-deposited ultrahigh-strength aluminum alloy and densified preform of ultrahigh-strength aluminum alloy |
| CN113102671A (en) * | 2021-04-06 | 2021-07-13 | 无锡透平叶片有限公司 | Die forging method for superhard aluminum alloy forging of cone-barrel-shaped revolving body |
| CN113802074A (en) * | 2021-08-04 | 2021-12-17 | 苏州奥拓博科新材料科技有限公司 | Hot isostatic pressing densification method suitable for spray deposition of high-strength aluminum alloy |
| CN114074167A (en) * | 2021-11-11 | 2022-02-22 | 上海工程技术大学 | Difficult-deformation aluminum alloy plate cake component and composite forming method thereof |
| CN113977207A (en) * | 2021-12-01 | 2022-01-28 | 天津双昊车用空调有限公司 | Processing technology of gas-liquid separator integrated barrel |
| CN115430836A (en) * | 2022-08-24 | 2022-12-06 | 广东省科学院资源利用与稀土开发研究所 | Preparation method and device of high-abundance rare earth cerium-based anisotropic nanocrystalline magnet |
| CN115430836B (en) * | 2022-08-24 | 2023-11-17 | 广东省科学院资源利用与稀土开发研究所 | Preparation method and device of high-abundance rare earth cerium-based anisotropic nanocrystalline magnet |
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