CN109570258A - A kind of wide cut sheet with rib material and its integral forming method - Google Patents
A kind of wide cut sheet with rib material and its integral forming method Download PDFInfo
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- CN109570258A CN109570258A CN201811357309.0A CN201811357309A CN109570258A CN 109570258 A CN109570258 A CN 109570258A CN 201811357309 A CN201811357309 A CN 201811357309A CN 109570258 A CN109570258 A CN 109570258A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/02—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of sheets
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/06—Making non-ferrous alloys with the use of special agents for refining or deoxidising
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C23/00—Alloys based on magnesium
- C22C23/02—Alloys based on magnesium with aluminium as the next major constituent
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
- C22C9/04—Alloys based on copper with zinc as the next major constituent
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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
- C22F1/06—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of magnesium or alloys based thereon
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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
- C22F1/08—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of copper or alloys based thereon
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- Crystallography & Structural Chemistry (AREA)
- Extrusion Of Metal (AREA)
Abstract
The present invention relates to a kind of wide cut sheet with rib material and its integral forming methods, alloy blank, extrusion die, extrusion cylinder are first heated to target preheating temperature respectively, after heat preservation, the extrusion die is installed on extruder, extrusion forming processing is carried out to alloy blank, obtains band muscle cylindrical element；Drawing reduction processing is carried out to band muscle cylindrical element again, reduces the wall thickness of cylinder and the height of rib；It will split, flatten with muscle cylindrical element along the axis direction with muscle cylindrical element, and by creep ageing Shape correction, obtain wide cut sheet with rib material finished product.The present invention realizes the integrally formed target of wide cut sheet with rib material for the first time with lower ton extruder, solves the bottleneck problem that wide cut sheet with rib material manufacture difficulty is big, equipment investment is big, at high cost.Method of the invention can be widely applied to the forming of nonferrous metal and alloy wide cut sheet with rib material.
Description
Technical field
The present invention relates to a kind of wide cut sheet with rib material and its integral forming methods, belong to non-ferrous metal plastic deformation technology neck
Domain.
Background technique
With the development of aerospace and transportation equipment manufacturing technology, non-ferrous metal or alloy large-size curved surface are used
The overall performance and dimensions of sheet with rib material require higher and higher.And current aerospace military project and traffic equipment aluminium alloy
Large-scale curved component is riveted using thin plate sinew adding strip or the manufacture of slab entirety milling manufacturing process.Riveting forming reduces wide-thin
The performance uniformity of siding increases overall weight and reduces assembly efficiency；Whole milling manufacturing process makes raw material sharp
Low with rate, yield rate is low, and the residual stress generated increases the torsional deformation tendency of curved surface member, and then influences high-performance
The total quality of equipment.
In extrusion process due to wide cut sheet with rib material, cross-sectional shape, size difference are huge, the easy unstability of flow of metal,
Cause profile occur in extrusion process distortion, fold, cracking the defects of, or even will appear fracture, it is shapeless phenomena such as.Generally
Ground, wide cut sheet with rib material include the rib that plate and Duo Gen are distributed in plate surface.
Under the conditions of existing extrusion equipment, 125MN extruder can only meet the profile extrusion that breadth is MAX800mm or so
Demand, 225MN extruder only has the sheet with rib material that production breadth is 1000mm, and large-size extruder manufactures mold and requires
Height causes product processing cost high.Meanwhile domestic large-size extruder (10,000 tons or more) quantity is few, general extruder specification is small
In 75MN.Not yet discovery has extruding breadth ability in the extruder of 1100mm or more at present.
It is limited by current design level and technique production technique, aerospace military project and communications and transportation non-ferrous metal or conjunction
Golden ultra-wide band muscle light sheet monolithic molding technology is not yet formed.
Summary of the invention
The invention patent In view of the above shortcomings of the prior art, provides a kind of wide cut sheet with rib material and its monolithic molding
Method has lower manufacturing cost compared with prior art, and can produce performance more preferably wide cut sheet with rib material, realizes low
Tonnage extruding/drawing equipment (75MN extruder) carries out the target of inexpensive monolithic molding manufacture wide cut sheet with rib material.
In order to solve the above-mentioned technical problem, technical scheme is as follows:
A kind of integral forming method of wide cut sheet with rib material, includes the following steps:
S1, alloy blank, extrusion die, extrusion cylinder be heated to target preheating temperature respectively, after keeping the temperature 1-8h, by the extruding
Mold is installed on extruder, carries out extrusion forming processing to alloy blank, obtains band muscle cylindrical element；
Wherein, it is described with muscle cylindrical element include cylinder and Duo Gen and cylinder integrally connected rib, the rib is along cylinder
The length direction of body extends and is distributed on the inner wall and/or outer wall of cylinder；
S2, drawing reduction processing is carried out to the band muscle cylindrical element that step S1 is obtained, reduces the wall thickness and rib of cylinder
Thickness；
S3, along step S2, treated that the axis direction with muscle cylindrical element will be splitted with muscle cylindrical element, passes through creep ageing shaping
Flattening is realized in processing, obtains wide cut sheet with rib material finished product.
Further, the alloy blank is obtained by founding, and specifically, fusion-casting process includes ingredient, feeds intake, heats up and melt
The processes such as change, stirring, melt treatment, casting.
Further, before step S1, further include the steps that carrying out alloy blank homogenization, it is inclined to reduce ingot casting
It analyses, eliminate coarse eutectic phase.
Further, when alloy blank is aluminum alloy blank, homogenizing temperature is 450-475 DEG C, time 15-30h；When
When alloy blank is magnesium alloy blank, homogenizing temperature is 450-520 DEG C, time 6-15h；When alloy blank is copper alloy blank
When, homogenizing temperature is 820-870 DEG C, time 2-6h.
Further, the alloy blank is bar.
Further, in step S1, extruder is low tonnage extruder, it is preferable that the tonnage of extruder is lower than 5000 tons.
Forming process of the invention can be completed using low tonnage extruder, can reduce production cost.
Further, in step S1, when the alloy blank is aluminum alloy blank, the target preheating temperature is 440-
480 DEG C, soaking time 4-6h；When the alloy blank is magnesium alloy blank, the target preheating temperature is 350-400
DEG C, soaking time 3-4h；When the alloy blank is copper alloy blank, the target preheating temperature is 650-850 DEG C, is protected
The warm time is 3-5h.
Further, when extrusion molding is handled in step S1, when the alloy blank is aluminum alloy blank, extruder
Squeezing temperature is 440-480 DEG C, and the fltting speed of pressure ram is 0.2-0.6mm/s；When the alloy blank is magnesium alloy blank
When, the extruding temperature of extruder is 350-400 DEG C, and the fltting speed of pressure ram is 0.1-0.3mm/s；When the alloy blank is
When copper alloy blank, the extruding temperature of extruder is 650-850 DEG C, and the fltting speed of pressure ram is 0.2-0.5mm/s.
Further, in step S1, the wall thickness of the cylinder is 2.5-6mm, and rib is that height is 30-100mm；It is described
The internal diameter of cylinder is 100-230mm.
Further, the more ribs are uniformly distributed along the circumferential direction of cylinder.
Further, in step S2, before and after drawing reduction processing, the wall thickness deformation amount of cylinder is 1.5-4.0mm.It is practical
On, after drawing reduction processing, the perimeter of cylinder is the breadth that may be regarded as wide cut sheet with rib material.
Further, in step S3, when the alloy blank is aluminum alloy blank, creep ageing temperature is 100-150
DEG C, stress 250-300MPa, the processing time is 20-50h；When the alloy blank is magnesium alloy blank, creep ageing temperature
Degree is 200-250 DEG C, stress 180-250MPa, and the processing time is 40-60h；When the alloy blank is copper alloy blank,
Creep ageing temperature is 300-500 DEG C, stress 250-350MPa, and the processing time is 10-30h.
Further, in step S3, wide cut sheet with rib material finished product with a thickness of 1-3mm, rib height is 30-100mm.
Based on the same inventive concept, the present invention also provides a kind of wide cut sheet with rib materials, integral forming method from the above mentioned
It is made.
Compared with prior art, beneficial effects of the present invention are as follows:
First, method of the invention wide cut sheet with rib material produced is much larger than same tonnage extruder on its width to give birth to
The high muscle thin-walled plate of the wide cut of production can use (5000 tons or less) realization wide cut sheet with rib material extrusion molding mesh of low tonnage extruder
Mark.
Second, method of the invention not only greatly reduces production cost, but also low tonnage production equipment (5000 is widened
Ton or less) use scope, and control materials microstructure and performance well.Matched by squeezing with drawing reduction process
It closes, in conjunction with the processing of creep ageing Accurate Shaping, heat treatment and accurate shaping can be achieved at the same time, greatly save the energy, improve production
Efficiency and quality.Wide cut can be greatly reduced compared with the riveting of thin plate sinew adding strip or whole milling manufacturing process in the method for the present invention
Sheet with rib material overall weight improves plate property homogeneity, improves assembly efficiency and utilization rate of raw materials.
Third, method of the invention can be widely used in non-ferrous metal or the integrally formed process of alloy wide cut sheet with rib material
Among.
Detailed description of the invention
Fig. 1 is cross-sectional view after two kinds of band muscle cylindrical element extrusion moldings, and (a) rib is located at cylinder inner wall, (b) muscle
Item is located at cylinder outer wall.
Fig. 2 is cross-sectional view after two kinds of band muscle cylindrical element drawings are thinned, and (a) rib is located at cylinder inner wall, (b) muscle
Item is located at cylinder outer wall.
Fig. 3 is the cross-sectional view for splitting the wide cut sheet with rib material after flattening.
Specific embodiment
The present invention provides a kind of integral forming method of high muscle thin-walled plate of wide cut, below by embodiment come to the present invention into
Row is further described.
Embodiment 1
A kind of integral forming method of aluminium alloy large-sized wide cut sheet with rib material, including founding, extruding/drawing process, creep
The accurate shaping process of timeliness.The founding includes ingredient, feed intake, heat up fusing, stirring, melt treatment, casting, to acquisition
Casting rod carry out timely homogenization.
(1) founding: carrying out ingredient according to alloying component, feeds intake into melting furnace, heating fusing, uniform using electromagnetic agitation
Afterwards, it is sampled simultaneously analysis ingredient.The melt treatment includes injection refining, concrete operations are as follows: when aluminum water temperature in smelting furnace
When degree reaches 730 DEG C~750 DEG C or so, first time argon gas injection refining is carried out, refining agent is packed into dedicated fining pot, is with argon gas
Refining agent is blown to furnace by carrier by refining pipe, and refining pipe end refines in Guan Lu apart from 80 ~ 120mm of furnace bottom and makees " M "
Type slowly moves；Powdery refining agent is no sodium solid-state refining agent, dosage 5Kg, and refining time is 20 minutes, when refining in furnace
There cannot be dead angle, it is necessary to which in place, the wave height that when refining starts is between 50~100mm for whole aluminum anodizings；And record essence
Refining front and back temperature.The melt treatment includes CCl4Refining, concrete operations are as follows: when melt temperature is 735 DEG C, made with argon gas
Carrier is by CCl4Furnace refining is imported, refining tube head is slowly moved close to melt bottom and according to " M " shape in furnace as far as possible, controlled
Argon flow processed makes metal wave be less than 100mm, cannot there is dead angle；CCl4Dosage is two bottles, refining time 10min.Refining
After the completion, melt stands 15min, then skims.CCl twice is carried out according to same process4Refining.The melt treatment includes
Online crystal grain refinement processing, grain refiner use aluminium Ti, B grain graining agent (Al-5Ti-B), and point of addition enters for degasification tank
Mouthful, additive amount is 1kg ~ 2kg/tAl.The melt treatment includes online degasification, the hydrogen content control after degasification in melt
System is below 0.10ml/100g aluminium.The melt treatment contains online twin-stage plate-type filtering.The casting temperature 690-710
℃.The homogeneous heat treating regime are as follows: (390 DEG C -420 DEG C) × 15h+ (460 DEG C -475 DEG C) × for 24 hours.
(2) it squeezes preheating: the aluminium alloy cast ingot after Homogenization Treatments is heated to 440-480 DEG C, preferably 460 DEG C, and
And heat preservation 4-6 hours, preferably 5h；Extrusion die is preheating to 445-485 DEG C, preferably 465 DEG C simultaneously；Extrusion cylinder is preheated
To 430-470 DEG C, preferably 445 DEG C.Hot extrusion is carried out after carrying out the related preparation of extruding；
(3) extrusion molding: extruding rate is 0.2-0.6 mm/s, preferably 0.3mm/s；It is 440-480 DEG C that aluminium ingot, which squeezes temperature,
Preferably 460 DEG C.As shown in Figure 1, being formed by band muscle cylindrical element internal diameter after squeezing is R, R=L/2 π=100-230mm；Wall thickness is
3.5-4.5mm, the height of rib are 35-45mm.
(4) drawing is thinned: axially carrying out drawing to the band muscle tubular exemplar edge that extruding obtains and is thinned, as shown in Fig. 2, drawing
Cylinder 1 wall thickness deformation amount in front and back is 2.0-3.0mm, preferably 2.5mm, and forming wall thickness is 1.2-1.7mm, the height of rib 2
For 35-45mm, circular cylinder radius R constant band muscle cylindrical element.
(5) flattening and finishing/heat treatment are splitted: as shown in figure 3, cuing open to the band muscle tubular exemplar formed after drawing along axis
It opens, flatten, and by creep ageing Shape correction, creep ageing temperature is 100-150 DEG C, preferably 120 DEG C, stress 250-
300MPa, preferably 280MPa；The processing time is 20-50h, preferably 30h；Finally obtaining breadth is L, the π of L=2 R=700-
1440mm；Cylinder wall thickness is 1.2-1.7mm；The wide cut sheet with rib material 3(of a height of 35-45mm of rib is shown in Fig. 3).
Embodiment 2
A kind of integral forming method of magnesium alloy large-sized wide cut sheet with rib material, includes the following steps:
(1) it squeezes preheating: the magnesium alloy ingot after Homogenization Treatments being heated to 350-400 DEG C, preferably 380 DEG C, and is protected
Warm 3-4h, preferably 3h；Extrusion die is preheating to 360-410 DEG C simultaneously, extrusion cylinder is preheating to 350-410 DEG C, preferably
390℃.Hot extrusion is carried out after carrying out the related preparation of extruding；
Wherein, in magnesium alloy ingot, Al content 8.7wt%, Zn content is 0.7wt%, and Mn content is 0.15wt%, surplus Mg；
(2) extrusion molding: extruding rate 0.1-0.3mm/s, preferably 0.2mm/s, the extruding temperature for squeezing embryo material is 350-
400 DEG C, preferably 380 DEG C；As shown in Figure 1, squeeze after be formed by the high muscle thin-walled plate exemplar internal diameter of tubular be R, R=L/2 π=
150-300mm；Wall thickness is 3-4mm, the high 35-50mm of muscle.
(3) drawing is thinned: drawing is axially carried out along cylinder to compressive zone muscle tubular exemplar and is thinned, it is cylinder-shaped high before and after drawing
Muscle thin-walled plate wall thickness deformation amount 2.0-3.0mm, forming wall thickness m is 1.0-1.5mm, and the high h of muscle is 35-50mm, and barrel bore R is constant
The high muscle thin-walled cylinder of cylindrical shape, as shown in Figure 2.
(4) flattening and finishing/heat treatment are splitted: as shown in figure 3, cuing open to the high muscle thin-walled cylinder formed after drawing along axis
It opens, flatten, and by creep ageing Shape correction, creep ageing temperature is 200-250 DEG C, preferably 210 DEG C, stress 180-
250MPa, preferably 200MPa；The processing time is 40-60h, preferably 50h；Finally obtaining breadth is L, the π of L=2 R=1000-
1880mm；Wall thickness is 1.0-1.5mm；The wide cut sheet with rib material of a height of 35-50mm of muscle.
Embodiment 3
The integral forming method of one Albatra metal large size wide cut sheet with rib material, manufacturing process are as follows:
(1) it squeezes preheating: the copper alloy casting ingot after Homogenization Treatments being heated to 650-850 DEG C, preferably 800 DEG C, and is protected
Warm 3-5h, preferably 4h；Simultaneously by extrusion die, it is preheating to 660-860 DEG C, extrusion cylinder is preheating to 640-840 DEG C, preferably
790℃.Hot extrusion is carried out after carrying out the related preparation of extruding；
Wherein, in copper alloy, Cu content be 60wt%, Zn content be 36wt%, Pb content be 2.9wt%, Al content 0.7wt%,
Fe content is 0.2wt%；
(2) extrusion molding: extruding rate 0.2-0.5mm/s, preferably 0.2mm/s, the extruding temperature for squeezing embryo material are
650-850 DEG C, preferably 800 DEG C,；As shown in Figure 1, being formed by the high muscle thin-walled plate exemplar radius of tubular after squeezing is R, R=L/
2π=150-200mm；Wall thickness is 3-4mm, the high 45-50mm of muscle.
(3) drawing is thinned: drawing is axially carried out along cylinder to compressive zone muscle tubular exemplar and is thinned, it is cylinder-shaped high before and after drawing
Muscle thin-walled plate wall thickness deformation amount is 1.5-4.0mm, and forming wall thickness is 1.0-1.5mm, and muscle a height of 40-50mm, barrel bore R is constant
The high muscle thin-walled cylinder of cylindrical shape, as shown in Figure 2.
(4) flattening and finishing/heat treatment are splitted: as shown in figure 3, to the band muscle cylindrical sample piece formed after drawing along axis
It splits, flatten, and by creep ageing Shape correction, creep ageing temperature is 300-500 DEG C, preferably 400 DEG C.Stress is
250-350MPa, preferably 280MPa；The processing time is 10-30h, preferably 15h.Finally obtain breadth be L, the π of L=2 R=
1000-1256mm；Wall thickness is 1.0-1.5mm；The wide cut sheet with rib material of a height of 40-50mm of muscle.
To sum up, it is squeezed it is a feature of the present invention that replacing straight panel shape sheet with rib material to reach reduction by cylindrical strip gusset material
The purpose of mouth breadth is extruded, the degree of dependence to large-tonnage extruder is reduced, to reduce production cost；The present invention, which uses, to be squeezed
Pressure+drawing manufacturing process replaces an extrusion molding, can reduce high muscle thin-walled plate extrusion molding difficulty and equip ton to squeezing
The requirement of position reduces Extrusion Die Design and manufacturing cost；The used creep ageing precise forming technique of the present invention, can effectively drop
Low strap muscle sheet deformation residual stress greatly improves sheet with rib material forming accuracy, and realizes finishing and heat treatment simultaneously, simplifies work
Skill process.Present invention firstly provides with the technique of lower tonnage equipment (being lower than 5000 tons) extrusion molding, non-ferrous metal is realized
And the integrally formed target of alloy wide cut sheet with rib material, solve that wide cut sheet with rib material manufacture difficulty is big, equipment investment is big, cost
High bottleneck problem.This production method can be widely applied to the forming of nonferrous metal and alloy wide cut sheet with rib material.
The content that above-described embodiment illustrates should be understood as that these embodiments are only used for being illustrated more clearly that the present invention, without
For limiting the scope of the invention, after the present invention has been read, those skilled in the art are to various equivalent forms of the invention
Modification each fall within the application range as defined in the appended claims.
Claims (9)
1. a kind of integral forming method of wide cut sheet with rib material, which comprises the steps of:
S1, alloy blank, extrusion die, extrusion cylinder be heated to target preheating temperature respectively, after keeping the temperature 1-8h, by the extruding
Mold is installed on extruder, carries out extrusion forming processing to alloy blank, obtains band muscle cylindrical element；
Wherein, the band muscle cylindrical element includes cylinder (1) and the more ribs (2) with cylinder integrally connected, the rib
(2) extend along the length direction of cylinder (1) and be distributed on the inner wall and/or outer wall of cylinder；
S2, drawing reduction processing is carried out to the band muscle cylindrical element that step S1 is obtained, reduces the wall thickness and rib of cylinder (1)
(2) thickness；
S3, along step S2, treated that the axis direction with muscle cylindrical element will be splitted with muscle cylindrical element, passes through creep ageing shaping
Flattening is realized in processing, obtains wide cut sheet with rib material finished product.
2. integral forming method according to claim 1, which is characterized in that further include to alloy preform before step S1
Material carries out the step of homogenization.
3. integral forming method according to claim 1, which is characterized in that when extrusion molding is handled in step S1, work as institute
When to state alloy blank be aluminum alloy blank, the extruding temperature of extruder is 440-480 DEG C, and the fltting speed of pressure ram is 0.2-
0.6mm/s；When the alloy blank is magnesium alloy blank, the extruding temperature of extruder is 350-400 DEG C, the propulsion of pressure ram
Speed is 0.1-0.3mm/s；When the alloy blank is copper alloy blank, the extruding temperature of extruder is 650-850 DEG C, is squeezed
The fltting speed of compression bar is 0.2-0.5mm/s.
4. integral forming method according to claim 1, which is characterized in that in step S1, the wall thickness of the cylinder (1)
For 2.5-6mm, rib (2) is that height is 30-100mm；The internal diameter of the cylinder is 100-230mm.
5. integral forming method according to claim 1, which is characterized in that the more ribs (2) are along cylinder (1)
Circumferentially it is uniformly distributed.
6. integral forming method according to claim 1, which is characterized in that in step S2, before and after drawing reduction processing, circle
The wall thickness deformation amount of cylinder is 1.5-4.0mm.
7. integral forming method according to claim 1, which is characterized in that in step S3, when creep ageing Shape correction,
When the alloy blank is aluminum alloy blank, creep ageing temperature is 100-150 DEG C, stress 250-300MPa, when processing
Between be 20-50h；When the alloy blank is magnesium alloy blank, creep ageing temperature is 200-250 DEG C, stress 180-
250MPa, processing time are 40-60h；When the alloy blank is copper alloy blank, creep ageing temperature is 300-500 DEG C,
Stress is 250-350MPa, and the processing time is 10-30h.
8. integral forming method according to claim 1, which is characterized in that in step S3, wide cut sheet with rib material finished product
With a thickness of 1-3mm, rib height is 30-100mm.
9. a kind of wide cut sheet with rib material, which is characterized in that made by the described in any item integral forming methods of such as claim 1-8
It forms.
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Cited By (9)
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|---|---|---|---|---|
| CN110202015A (en) * | 2019-07-15 | 2019-09-06 | 太原科技大学 | A kind of method of the compound near-net-shape of titanium alloy thin wall profile extrusion drawing |
| CN110900120A (en) * | 2019-10-30 | 2020-03-24 | 太原科技大学 | Integral forming method of wide-width high-rib thin-wall metal wall plate |
| CN113351676A (en) * | 2021-06-09 | 2021-09-07 | 湖北美科精毅科技有限公司 | Technique for controlling organization performance and size uniformity of wide-width integrally-extruded wallboard and board |
| CN113909329A (en) * | 2021-12-13 | 2022-01-11 | 中国航发北京航空材料研究院 | Preparation method of aluminum alloy wide-width ribbed wallboard |
| CN114042779A (en) * | 2021-11-30 | 2022-02-15 | 一重集团大连工程技术有限公司 | Aluminum alloy cylinder flattening process with rib plate formed by integral extrusion molding |
| CN114309108A (en) * | 2021-12-09 | 2022-04-12 | 山东兖矿轻合金有限公司 | Extrusion forming method of oversized aluminum alloy integral wallboard for ships |
| CN114309226A (en) * | 2021-12-27 | 2022-04-12 | 山东兖矿轻合金有限公司 | Seamless pipe flattening device and seamless aluminum alloy plate production process |
| CN114346611A (en) * | 2022-01-06 | 2022-04-15 | 中南大学 | Manufacturing method of multidirectional rib-containing aluminum alloy plate |
| CN115228959A (en) * | 2022-07-18 | 2022-10-25 | 山东大学 | Integral extrusion forming equipment for large-size component |
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| CN110900120A (en) * | 2019-10-30 | 2020-03-24 | 太原科技大学 | Integral forming method of wide-width high-rib thin-wall metal wall plate |
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| CN114309226A (en) * | 2021-12-27 | 2022-04-12 | 山东兖矿轻合金有限公司 | Seamless pipe flattening device and seamless aluminum alloy plate production process |
| CN114346611B (en) * | 2022-01-06 | 2023-09-19 | 中南大学 | Manufacturing method of multidirectional reinforced aluminum alloy plate |
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