CN109570230A - The forming method and equipment of aluminum alloy junction component - Google Patents
The forming method and equipment of aluminum alloy junction component Download PDFInfo
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- CN109570230A CN109570230A CN201811356281.9A CN201811356281A CN109570230A CN 109570230 A CN109570230 A CN 109570230A CN 201811356281 A CN201811356281 A CN 201811356281A CN 109570230 A CN109570230 A CN 109570230A
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- Prior art keywords
- aluminum alloy
- junction component
- alloy junction
- roller
- component
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/08—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling structural sections, i.e. work of special cross-section, e.g. angle steel
-
- 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
- C22F1/002—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working by rapid cooling or quenching; cooling agents used therefor
-
- 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
Abstract
The invention discloses the forming methods and equipment of a kind of aluminum alloy junction component.Wherein, this method comprises: being the aluminum alloy junction component of specified profile by aluminium alloy cast ingot hot rolling to be formed；The aluminum alloy junction component of specified profile is quenched；Aluminum alloy junction component after quenching treatment is subjected to chilling roller processing；Chilling roller treated aluminum alloy junction component is subjected to constraint aging processing.The embodiment of the present invention both can largely cut down aluminium alloy residual stress, can also reduce aluminium alloy molding and spend.
Description
Technical field
The present invention relates to aerospace technical fields, more particularly, to the forming method and equipment of a kind of aluminium alloy.
Background technique
For aluminium alloy due to the characteristic of lightweight, structural member is widely used in aerospace technical field.For example, aluminium alloy
It is commonly used for the trunk material of lightweight large-sized structural parts.Currently, aluminum alloy junction component forms the big of part by hot forging process first
Outer dimension is caused, then by improving its microstructure, final finishing molding.
Applicant it has been investigated that: usual hot forging process needs many moulding process steps, such as die forging, open die forging etc..
Entire forming process is very expensive.In addition, uniform microstructure hardly results in, weight caused by especially being forged in multi-section
Folded region.In addition to this, the generation of residual stress, the part that will lead to subsequent machining manufacture deform.In order to make material
Corresponding mechanical property is obtained, the material that needs a person with the qualifications of a general carries out solution treatment and quenching.Since part being quickly put into quenching process
In medium, this inevitably produces residual stress, this will lead to the severely deformed of part during following process.Meanwhile
Residual stress present in component can cause tired hidden danger in the follow-up process.
The problem of how removing stress in aluminum alloy junction component becomes this field technical problem urgently to be resolved.
Summary of the invention
In consideration of it, the present invention provides a kind of moldings of aluminum alloy junction component in order to remove stress in aluminum alloy junction component
Method and apparatus.
In a first aspect, the present invention provides a kind of forming methods of aluminum alloy junction component.This method comprises:
It is the aluminum alloy junction component of specified profile by aluminium alloy cast ingot hot rolling to be formed；
The aluminum alloy junction component of specified profile is quenched；
Aluminum alloy junction component after quenching treatment is subjected to chilling roller processing；
Chilling roller treated aluminum alloy junction component is subjected to constraint aging processing.
Second aspect, the present invention provides a kind of molding equipments of aluminum alloy junction component.The equipment includes:
Roller, for being the aluminum alloy junction component of specified profile by aluminium alloy cast ingot hot rolling to be formed；
Quenched member, for the aluminum alloy junction component of specified profile to be quenched；
Roller, the aluminum alloy junction component after being also used to be quenched carry out chilling roller processing；
Fixture, for chilling roller treated aluminum alloy junction component to be carried out constraint aging processing.
On the one hand, foregoing invention embodiment passes through the aluminum alloy junction component progress chilling roller processing after be quenched, can be with
The residual stress in aluminum alloy junction component after reducing quenching treatment.
On the other hand, foregoing invention embodiment is by carrying out chilling roller treated aluminum alloy junction component at constraint aging
Reason, the residual stress that can be further reduced chilling roller treated in aluminum alloy junction component.
Another aspect, foregoing invention embodiment is handled by hot-rolling and chilling roller processing substitutes traditional concora crush and handles, can be with
The size of processing equipment is greatly reduced, so that completing that structure is complicated, the structural member in large-scale thick section becomes using skinny device can
Can, which reduce equipment, the construction scale of workshop, simplify mode of operation, reduce the expense of machine-shaping.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, will make below to required in the embodiment of the present invention
Attached drawing is briefly described, it is therefore apparent that drawings described below is only some embodiments of the present invention, for this
For the technical staff in field, without creative efforts, it can also be obtained according to these attached drawings other attached
Figure.
Fig. 1 is the flow diagram of the forming method of the aluminum alloy junction component of one embodiment of the invention；
Fig. 2 (a) is the forging molding process curve synoptic diagram of one embodiment of the invention；
Fig. 2 (b) is the forging molding process rolling schematic diagram of one embodiment of the invention；
Fig. 3 (a) is the roller schematic diagram of one embodiment of the invention；
Fig. 3 (b) is the schematic diagram of the T-type component of one embodiment of the invention；
Fig. 4 (a) is the residual stress distribution schematic diagram to T-type component after quenching of one embodiment of the invention；
Fig. 4 (b) is the residual stress distribution schematic diagram to T-type component after chilling roller of one embodiment of the invention；
Fig. 5 is the structural schematic diagram of the molding equipment of the aluminum alloy junction component of one embodiment of the invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described.Obviously, described embodiment is
A part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiments of the present invention, those skilled in the art
Without making creative work, every other embodiment obtained, shall fall within the protection scope of the present invention.
It should be noted that in the absence of conflict, the feature in the embodiment of the present invention and embodiment can be tied mutually
It closes, each embodiment mutually can be referred to and be quoted.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
Fig. 1 is the flow diagram of the forming method of the aluminum alloy junction component of one embodiment of the invention.
As shown in Figure 1, this method may comprise steps of:
Aluminium alloy cast ingot hot rolling to be formed is the aluminum alloy junction component of specified profile by S101；
The aluminum alloy junction component of specified profile is quenched by S102；
Aluminum alloy junction component after quenching treatment is carried out chilling roller processing by S103；
Chilling roller treated aluminum alloy junction component is carried out constraint aging processing by S104.
In some embodiments, before quenching treatment (S102), it is specified outer that this method, which can also include: by hot rolling,
The aluminum alloy junction component of shape carries out solution treatment (sub-step S1).
In some embodiments, the forming method of aluminum alloy junction component can be the following steps are included: after to constraint aging
Aluminum alloy junction component carry out finishing processing, obtain preset profiles (as process needed for shape) aluminum alloy junction component.
In sub-step S1, by hot rolling be specified profile aluminum alloy junction component carry out solution treatment the step of can wrap
It includes following steps: being heated to the aluminum alloy junction component that hot rolling is specified profile to be more than or equal to 450 DEG C and be less than or equal to 600 DEG C
Temperature；Zn element and/or Mg element after dissolution heating in aluminum alloy junction component.
It is the aluminum alloy junction component of specified profile by aluminium alloy cast ingot hot rolling to be formed in above-mentioned steps S101
Step may include: using roller, would be heated to more than or equal to 380 DEG C and less than or equal to 420 °C by aluminium alloy cast ingot hot-rolling
Roll the aluminum alloy junction component for specified profile.
In above-mentioned steps S102, it may include following step that the aluminum alloy junction component of specified profile, which is carried out quenching treatment,
It is rapid: the aluminum alloy junction component of specified profile is being more than or equal to 20 DEG C and is being less than or equal in 100 DEG C of water quench.
In above-mentioned steps S103, it may include following step that the aluminum alloy junction component after quenching treatment, which is carried out chilling roller processing,
It is rapid: in the case where being more than or equal to 10 DEG C and being less than or equal to 100 DEG C of temperature environment, using roller, by the aluminum alloy junction after quenching treatment
Component carries out cold rolling processing.
In above-mentioned steps S104, the step of chilling roller treated aluminum alloy junction component is carried out constraint aging processing, can be with
Include the following steps: in the case where being more than or equal to 100 DEG C and being less than or equal to 300 DEG C of temperature environment, after being handled using fixture chilling roller
Aluminum alloy junction component be formed preset time.
In some embodiments, aluminum alloy junction component can be the aluminum alloy junction component of model 7050.Aluminium alloy structure
Part can be used for the structural member in the thick section of large size of aircraft.Aluminum alloy junction component can be the integral panel and/or machine of wing
The bulkhead component of body.It is appreciated that it is different sizes that aluminum alloy junction component, which can be machine-shaping according to actual needs,.
On the one hand, foregoing invention embodiment passes through the aluminum alloy junction component progress chilling roller processing after be quenched, can be with
The residual stress in aluminum alloy junction component after reducing quenching treatment.
On the other hand, foregoing invention embodiment is by carrying out chilling roller treated aluminum alloy junction component at constraint aging
Reason, the residual stress that can be further reduced chilling roller treated in aluminum alloy junction component.
Another aspect, foregoing invention embodiment is handled by hot-rolling and chilling roller processing substitutes traditional concora crush and handles, can be with
The size of processing equipment is greatly reduced, so that completing that structure is complicated, the structural member in large-scale thick section becomes using skinny device can
Can, which reduce equipment, the construction scale of workshop, simplify mode of operation, reduce the expense of machine-shaping.
It should be noted that above method content can carry out different degrees of combined application, for simplicity, repeating no more
The sequence of above-mentioned operating procedure can be carried out spirit according to actual needs by various combined implementations, those skilled in the art
Adjustment living, or above-mentioned steps are subjected to the operation such as flexible combination.
Fig. 2 (a) is the forging molding process curve synoptic diagram of one embodiment of the invention；Fig. 2 (b) is that the present invention one is real
Apply the forging molding process rolling schematic diagram of example.
The process of the present embodiment can form complicated thick big section, have meet design requirement mechanical property,
Accurate size and low residual stress.In the present embodiment, aluminum alloy junction component can be wing rib, beam etc. with curved form
Part, such as the section of T-type.
As shown in Fig. 2 (a) and Fig. 2 (b), above-mentioned technique (moulding process of aluminum alloy junction component) method may include as follows
5 steps:
S1, hot-rolling molding.
In S1, aluminium ingot casting first can be heated to hot-forming temperature, be then the T needed by ingot casting shaping by rolling
Font structure.T font structure is mainly to pass through the gap that two rollers occur in rolling to be formed.Therefore, in this step, structure
The shape of part can form substantially.The size of roller and the side of material are controlled by multiple rolling according to specified member profile
Formula can achieve ideal member profile.
S2, solution treatment+quenching.
In S2, after the molding of forging hot-rolling, then under solid solubility temperature (400-600 DEG C) solution treatment is carried out, then quickly
Cooling, quenching (20-100 DEG C).Supersaturated solid solution (SSSS) in order to obtain, it may appear that quick temperature gradient, this generates
Residual stress, the stress intensity depend on cooling velocity and component thickness.
S3, chilling roller cut down residual stress.
In S3, non-uniform plastic deformation is had occurred in quenching component, and decrement is controlled in 0.3%-3%, passes through chilling roller
Achieve the purpose that cut down residual stress.Herein with mold used in S1 step, it can cut down expenses and increase making for mold
With rate.By chilling roller technique, there may be a large amount of residual stress, this portion of residual stress can pass through subsequent people for component surface
Working hour effect and finishing removal.
S4, constraint aging.
In S4, constraint aging, which can be, is placed on heat-treatment furnace progress ageing treatment for chilling roller component.For example, passing through fixture
By component constraint (such as clamping) on mold, the temperature of artificial aging is at 100-250 DEG C.
During constraint aging, due to creep and stress release, residual stress can significantly be cut down.It is logical
Cross fixture be also able to maintain component shape it is constant.
S5, finishing.
In S5, the component after ageing treatment can reach the accurate dimension of final part by finishing.
The above method can have following advantage:
1, raw material are saved.The waste of raw material can be reduced to a certain extent by the relative complex component of rolling and forming.
2, equipment is cheap.The equipment size of this process requirement is smaller, cheaper, meanwhile, factory is convenient for purchasing and installing.
3, flexibility is big.A variety of member profiles can be formed by the size and shape that change roller.
4, utilization rate of equipment and installations is high.One set of die can be used in various technical processes, it is possible to reduce the expense of half.
5, constraint aging.The mechanical property that material not only can be improved in constraint aging can also cut down residual stress, simultaneously also
Can be indeformable with the shape of holding member, the workload of finishing can be greatly reduced.
6, uniform material property.By two technical process of hot-rolling and chilling roller, uniform formation and performance can be obtained
The problem of component, overlay region, can be resolved by the rolling of multi-step.
Fig. 3 (a) is the roller schematic diagram of one embodiment of the invention.
As shown in Fig. 3 (a), roller be can be at a temperature of 380-440 DEG C, complete the molding of 7050 aluminum alloy heats.Roller can
To use two rollers of 80mm diameter, one of roller is plane, the other is having the roller of form of grooves.
Fig. 3 (b) is the schematic diagram of the T-type component of one embodiment of the invention.
As shown in Fig. 3 (b), the thickness of T-type component along its length is variation.
Fig. 4 (a) is the remnants of the length direction obtained to the numerical simulation of T-type component after quenching of one embodiment of the invention
Stress distribution schematic diagram, Fig. 4 (b) are the length sides obtained to the numerical simulation of T-type component after chilling roller of one embodiment of the invention
To residual stress distribution schematic diagram.
Fig. 4 (a) and Fig. 4 (b) is that residual stress is obtained by test in quenching, chilling roller and constraint ag(e)ing process respectively
The regularity of distribution is the residual stress distribution rule obtained by the method for numerical simulation.T-type component carry out solution treatment after
It is quenched in 60 DEG C of hot water, then carries out the chilling roller technique that decrement is 1.5%, ageing treatment then is carried out extremely to component
T74 condition of heat treatment.
By the cloud atlas in Fig. 4 (a) and Fig. 4 (b) it is found that being cut down significantly by chilling roller technique residual stress, although surface is also
Abundant residues stress is retained, subsequent ageing treatment can reduce the surface residual stress of 13-40%.With the method, T-type structure
Part shape can be completed successfully by hot-rolling, and by subsequent technique process, residual stress is cut down to acceptable range, and
Obtain the component of high-precision and excellent mechanical property.
Fig. 5 is the structural schematic diagram of the molding equipment of the aluminum alloy junction component of one embodiment of the invention.
As shown in figure 5, the molding equipment of aluminum alloy junction component may include: roller, quenched member and fixture.Wherein, roller
Wheel can be used for the aluminum alloy junction component by aluminium alloy cast ingot hot rolling to be formed for specified profile；Quenched member can be used for
The aluminum alloy junction component of specified profile is quenched；Roller can be also used for the aluminum alloy junction component after being quenched
Carry out chilling roller processing；Fixture can be used for chilling roller treated aluminum alloy junction component carrying out constraint aging processing.
In some embodiments, the molding equipment of aluminum alloy junction component can also include: solid solution component, temperature controller and
Timer.Wherein, solid solution component can be used for the aluminum alloy junction component that hot rolling is specified profile carrying out solution treatment.Temperature
Controller can be used for controlling the temperature in aluminum alloy junction component forming process.Timer can be used for for aluminum alloy junction component at
Timing during type.
In some embodiments, roller may include: the first roller of plane and with reeded second roller.
In some embodiments, the diameter of the first roller is more than or equal to 60mm and is less than or equal to 100mm；And/or second roller
The diameter of wheel is more than or equal to 60mm and is less than or equal to 100mm.
It is appreciated that the terms "and/or", only a kind of incidence relation for describing affiliated partner, expression can be with
There are three kinds of relationships, for example, A and/or B, can indicate: individualism A exists simultaneously A and B, these three feelings of individualism B
Condition.
In some embodiments, the adjustable interval between the first roller and the second roller.The aluminum alloy junction processed as a result,
Component can be different with thickness, and can form curved surface.
It may comprise steps of using the molding equipment manufacture large aluminum alloy component manufacturing process of aluminum alloy junction component:
Aluminum alloy plate materials are heated to lower than solution heat treatment temperature by S1, at this temperature, by roller by aluminium alloy
Plate forming is the design outline needed.
In S1, required member cross-sections are obtained by roller rolling.It is available by changing roller surface shape
The component of varying cross-section form.Hot rolling process needs multi-pass to form.The temperature of solution treatment is 450-600 DEG C.Hot-rolling
Temperature is rolled lower than fusing point.Hot rolling compares solution treatment, more easily molded.
Forging is carried out solution heat treatment, is then quenched in thermal medium by S2.
It quenches rear part and cuts down residual stress by chilling roller technique.Hardening heat generates super saturated solid solution at 20-100 DEG C
Body and reduction residual stress generation.
S3 carries out chilling roller to component, generates plastic deformation with roller used in S1 step.
Thermoforming and cold forming process use identical roller.At 10 DEG C -100 DEG C, cold deformation control exists chilling roller temperature
0.3%-8%.
S4 carries out shaping component with fixture, and by slight deformation, adjusting fixture obtains it outside accurately component
Shape.By element heats to aging temp, required mechanical property is obtained.
By constraint aging, it can largely cut down remaining residual stress.Member profile obtains in ag(e)ing process
To control.Member profile is finely tuned and is controlled in ag(e)ing process.At 100-300 DEG C, heat treating regime includes aging temp
T6, T61, T7, T74, T7451 (retrogression heat treatment and again timeliness) other meet the requirement of tensile property.
It should be noted that above equipment can be used as the executing subject in the method for the various embodiments described above, may be implemented each
Corresponding process in a method, the content in above-mentioned each embodiment can be mutually with reference to using, for sake of simplicity, content in this respect
It repeats no more.
The above method and equipment can be adapted for 2xxx, 6xxx, the heat treatable aluminum alloy of 7xxx system.Above-mentioned molding aluminium
Alloy components can be adapted for aerospace structure part.
It should be noted that the implementation of function element shown in the present embodiment is (such as control temperature and control roller
Between spacing) can be hardware, software, firmware or their combination.When realizing in hardware, electricity may, for example, be
Sub-circuit, specific integrated circuit (ASIC), firmware appropriate, plug-in unit, function card etc..When being realized with software mode, this hair
Bright element is used to execute the program or code segment of required task.Program or code segment can store machine readable
In medium, either sent by the data-signal carried in carrier wave in transmission medium or communication links." machine readable Jie
Matter " may include any medium for capableing of storage or transmission information.The example of machine readable media includes electronic circuit, semiconductor
Memory devices, ROM, flash memory, erasable ROM (EROM), floppy disk, CD-ROM, CD, hard disk, fiber medium, radio frequency (RF) chain
Road etc..Code segment can be downloaded via the computer network of internet, Intranet etc..
Finally it should be noted that: the above embodiments are merely illustrative of the technical solutions of the present invention, but protection of the invention
Range is not limited thereto, and anyone skilled in the art in the technical scope disclosed by the present invention, can be thought easily
It is modified or replaceed to various equivalent, these, which are modified or replaceed, should all be included within the scope of the present invention.
Claims (19)
1. a kind of forming method of aluminum alloy junction component, comprising:
It is the aluminum alloy junction component of specified profile by aluminium alloy cast ingot hot rolling to be formed；
The aluminum alloy junction component of specified profile is quenched；
Aluminum alloy junction component after quenching treatment is subjected to chilling roller processing；
Chilling roller treated aluminum alloy junction component is subjected to constraint aging processing.
2. according to the method described in claim 1, before quenching treatment, further includes:
The aluminum alloy junction component that hot rolling is specified profile is subjected to solution treatment.
3. according to the method described in claim 2, the aluminum alloy junction component that hot rolling is specified profile is carried out solution treatment, packet
It includes:
The aluminum alloy junction component that hot rolling is specified profile is heated to the temperature for being more than or equal to 450 DEG C and being less than or equal to 600 DEG C；
The Zn element and/or Mg element in aluminum alloy junction component after dissolution heating.
4. according to the method described in claim 1, further include:
Finishing processing is carried out to the aluminum alloy junction component after constraint aging, obtains the aluminum alloy junction component of preset profiles.
5. according to the method described in claim 1, wherein, the aluminium that aluminium alloy cast ingot hot rolling to be formed is specified profile is closed
Golden structural member, comprising:
Using roller, would be heated to more than or equal to 380 DEG C and less than or equal to 420 DEG C is specified outer by aluminium alloy cast ingot hot rolling
The aluminum alloy junction component of shape.
6. according to the method described in claim 1, wherein, the aluminum alloy junction component of specified profile is quenched, comprising:
The aluminum alloy junction component of specified profile is being more than or equal to 20 DEG C and is being less than or equal in 100 DEG C of water quench.
7. according to the method described in claim 1, wherein, the aluminum alloy junction component after quenching treatment is carried out chilling roller processing, packet
It includes:
In the case where being more than or equal to 10 DEG C and being less than or equal to 100 DEG C of temperature environment, using roller, by the aluminum alloy junction after quenching treatment
Component carries out cold rolling processing.
8. according to the method described in claim 1, wherein, by chilling roller, treated that aluminum alloy junction component carries out at constraint aging
Reason, comprising:
It is being more than or equal to 100 DEG C and less than or equal under 300 DEG C of temperature environment, using fixture to chilling roller treated aluminum alloy junction
Component sizing preset time.
9. according to the method described in claim 1, wherein:
The aluminum alloy junction component is the aluminum alloy junction component of model 7050.
10. method described in any one of -9 according to claim 1, in which:
The aluminum alloy junction component is the structural member in the thick section of large size for aircraft.
11. according to the method described in claim 10, wherein, the structural member in the large-scale thick section includes in following structural member
It is one or more kinds of:
Integral panel, wing rib and the fuselage beam of wing.
12. according to the method described in claim 10, wherein, the structural member in the large-scale thick section includes:
T-type component.
13. a kind of molding equipment of aluminum alloy junction component, comprising:
Roller, for being the aluminum alloy junction component of specified profile by aluminium alloy cast ingot hot rolling to be formed；
Quenched member, for the aluminum alloy junction component of specified profile to be quenched；
Roller, the aluminum alloy junction component after being also used to be quenched carry out chilling roller processing；
Fixture, for chilling roller treated aluminum alloy junction component to be carried out constraint aging processing.
14. equipment according to claim 13, the roller include:
First roller of plane,
With reeded second roller.
15. equipment according to claim 13, in which:
The diameter of first roller is more than or equal to 60mm and is less than or equal to 100mm；
And/or
The diameter of second roller is more than or equal to 60mm and is less than or equal to 100mm.
16. equipment according to claim 13, in which:
Adjustable interval between first roller and second roller.
17. equipment according to claim 13, further includes:
It is dissolved component, for the aluminum alloy junction component that hot rolling is specified profile to be carried out solution treatment.
18. equipment according to claim 13, further includes:
Temperature controller, for controlling the temperature in the aluminum alloy junction component forming process.
19. equipment described in any one of 3-18 according to claim 1, further includes:
Timer, for being timing in the aluminum alloy junction component forming process.
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| CN201811356281.9A CN109570230A (en) | 2018-11-14 | 2018-11-14 | The forming method and equipment of aluminum alloy junction component |
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