CN109759783A - A kind of nearly same sex high-performance aluminium alloy cylindrical forged piece manufacturing process of three-dimensional - Google Patents
A kind of nearly same sex high-performance aluminium alloy cylindrical forged piece manufacturing process of three-dimensional Download PDFInfo
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- CN109759783A CN109759783A CN201811615234.1A CN201811615234A CN109759783A CN 109759783 A CN109759783 A CN 109759783A CN 201811615234 A CN201811615234 A CN 201811615234A CN 109759783 A CN109759783 A CN 109759783A
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Abstract
The present invention provides a kind of three-dimensional nearly same sex high-performance aluminium alloy cylindrical forged piece manufacturing process, the specific steps are as follows: raw materials size design；Ingot quality detection；Heating before ingot casting forging；Multiway forging；Melt down heating；Z-direction jumping-up, punching；Melt down heating；Fullering with the core bar；Melt down heating；Saddle support reaming；Machining；Roll preceding heating；Looping mill rolling；Solution treatment；Ageing treatment；Quality testing.The present invention realizes nearly impartial deformation to three directions of aluminium alloy cylindrical forged piece, makes the nearly same sex of product three-dimensional performance.Coarse remaining crystalline phase, provides tissue for the second phase even dispersion distribution in heat treatment process and prepares in the sufficiently broken as-cast structure of the present invention.The present invention dissolves the second phase in tissue sufficiently, improves degree of super saturation, utmostly excavated material potential, plays the performance boundary of material.The present invention uses small Soft reduction rate, improves the stress in quenching water temperature reduction manufacture course of products, makes the residual stress control of forging in a certain range.
Description
Technical field
The present invention relates to aluminum alloy forged cylinder technology field more particularly to a kind of nearly same sex high-performance aluminium alloys of three-dimensional
Cylindrical forged piece manufacturing process.
Background technique
As China's aerospace industry develops, enlargement, integration, high reliability have become space product developing direction and
General trend.In recent years, the demand of large aluminum alloy revolving body solid forging is increasing, requirement of performance of being on active service to it
Higher and higher, traditional monoblock cast is formed with advantage at low cost, that the period is short, but loose, stomata defect easily occurs, and produces
Product comprehensive performance is relatively low, is unable to satisfy service demand.Forging and molding is thick in as-cast structure by smashing to blank pyroplastic deformation
Big remaining crystalline phase improves structural homogenity, and the second phase even dispersion in follow-up heat treatment process is precipitated, improves product
Performance indicator.
Aluminium alloy cylindrical forged piece outer diameter Φ 1000-2000mm, height 800-2000mm, relatively narrow with deformation temperature section,
Technique guarantees the manufacture difficult points such as difficulty is big.Hammer cogging process is to influence the key link of product final performance, traditional cogging
Cheng Caiyong axial direction single jumping-up or two upsettings one, which are pulled out, shapes pie blank, then the ring billet of middle with hole is obtained by punching, though it is raw
It is higher to produce efficiency, but is only axially carrying out a degree of deformation, keeps the deformation of blank different location uneven, structure property is uniform
Property it is poor, and unidirectional deformation keeps ring billet anisotropy serious, and causing product in certain direction, there are performance short slabs, influence product and integrally may be used
By property.Using free forging to the final desired size of forging, production efficiency is low, forming accuracy is low, causes the production cycle long, machine
Processing capacity is big, and stock utilization is low.Looping mill rolling technology is the currently manufactured most common method of rotary type component, passes through diameter-axial direction
Cooperative transformation realizes that small process allowance precisely shapes to ring billet different location homogeneous deformation.
For heat-treatable strengthened aluminum alloy, heat treatment process is the important procedure for regulating and controlling product strength and plasticity index,
Traditional heat treatment parameter can not excavated material potential, the performance boundary of material is played, to limit the application range of material.?
Increase cold deformation process between solid solution and timeliness, product overall performance index can be improved by introducing dislocation, while reducing residual
Residue stress.Cylindrical forged piece short transverse is oversized, can not carry out cold deformation by the way of axially cold pressing or cold expanding shape, can only
Outer diameter is set to grow up 2-3% by cold rolling, but this requires looping mill capacity of equipment high, and can lose radial direction to a certain extent
Elongation percentage index.
Summary of the invention
Present invention seek to address that the deficiencies in the prior art, and provide a kind of three-dimensional nearly same sex high-performance aluminium alloy cylindrical forged piece
Manufacturing process.
The present invention to achieve the above object, using following technical scheme:
A kind of nearly same sex high-performance aluminium alloy cylindrical forged piece manufacturing process of three-dimensional, the specific steps are as follows:
Step 1: raw materials size design:
Raw material use the aluminium alloy round cast ingot of semi-continuous casting method production, consider that design of part size, forging technology disappear
Consumption, machining allowance factor, it is desirable that ingot casting ratio of height to diameter L/D=2-3；
Step 2: ingot quality detection:
As-ingot is annealed state, is carrying out quality control to ingot casting；
Step 3: heating before ingot casting forging:
Ingot casting room temperature shove charge, heating process are divided into two stages, the first stage: are warming up to 430-450 from room temperature through 2h
DEG C, and keep the temperature 1h；Second stage, then 480 DEG C are warming up to 1h, in 475-485 DEG C of heat preservation 18-25h；
Step 4: multiway forging:
To three mutually orthogonal directions of ingot casting, i.e. X, Y, Z axis in right hand fix duty, a jumping-up, pulling are carried out respectively
Deformation carries out three upsettings altogether, three pulls out, and blank final forging temperature >=420 DEG C are made；If the axial direction of starting ingot is Z-direction, then deformation sequence
Are as follows: for Z-direction jumping-up-X to pulling-X to jumping-up-Y-direction pulling-Y-direction jumping-up-Z-direction pulling, wherein Upsetting amount is 55-65%, is pulled out
Long deflection is 40-50%；
Step 5: heating is melted down:
By blank in 475-485 DEG C of heat preservation 3-5h；It is preheated between upper and lower hammer anvil with hot steel ingot；
Step 6: Z-direction jumping-up, punching:
Blank carries out Z-direction jumping-up again after coming out of the stove, press Soft reduction rate is controlled in 10-12mm/s, and adjusts blank axis
Direction, guarantees the verticality of blank, after jumping-up to H=900-1200mm, carries out chamfered edge, round as a ball, then jumping-up prepares to round pie
Punching；Contact preheating is carried out to formed punch before punching, cake is placed on to the center of lower anvil face using press centralising device, is used
Pre- primary drying blind hole in a state of excitement divides 4-6 pressure, pushes 80-100mm every time, and graphite lubrication is smeared before formed punch pushes every time
Agent, final Web thickness 100-150mm depress to blank end face smooth after pre- punching, then sweeps away gross weight with end stamping punch,
To obtain the ring billet with centre bore, ring billet final forging temperature >=420 DEG C；
Step 7: heating is melted down:
By ring billet in 475-485 DEG C of heat preservation 3-5h；
Step 8: fullering with the core bar:
Ring billet heats plug and V-shape anvil before coming out of the stove, and in 400 DEG C of heat preservation 10-12h, ring billet carries out core on V-shape anvil
Graphitic lubricant is smeared in axis pulling on upper hammer anvil and V-shape anvil before forging, after pulling to desired size, clamping blank to lower flat anvil
On, carry out flat end face, ring billet final forging temperature >=420 DEG C；
Step 9: heating is melted down:
By ring billet in 475-485 DEG C of heat preservation 3-5h；
Step 10: saddle support reaming:
Saddle is heated before reaming, in 400 DEG C of heat preservation 10-12h, several circles of saddle support reaming point are carried out,
The control of single depression amount replaces the saddle of suitable dimension according to blank internal diameter in 60-80mm, until reaming extremely
Ring billet desired size clamps blank to lower flat anvil, flat end face, ring billet final forging temperature >=420 DEG C after reaming；
Step 11: machining:
Ring billet inner and outer surfaces and upper and lower end face are machined out, it is desirable that the defect that surface is visible by naked eyes, surface are thick
Rugosity Ra12.5；
Step 12: preceding heating is rolled:
Ring billet is heated using electric furnace, ring billet room temperature shove charge keeps the temperature 3-8h after being warming up to 445-455 DEG C；
Step 13: looping mill rolling:
Roll is preheated before rolling, 250-300 DEG C is preheated to, ring billet is rolled on diameter-axial NC looping mill
The operation of rolling is divided into four-stage by system, king roller linear velocity 900-1300mm/s, and the diameter growth rate of each stage ring billet is not
Same: breaking down stage diameter rate of rise is set as 3mm/s；Transition rolling sequence improves diameter growth rate, is improved by 3mm/s
To 5mm/s, then transit to 8mm/s；Main rolling sequence,
It is the Main Stage that ring diameter is grown up, material deformation is more violent, and diameter rate of rise is set as 8mm/s；Subtract
The speed rolling stage need to increase ring surface temperature early period in the second half of rolling and be adjusted, reduce diameter growth rate extremely
1mm/s；Rolling reduction 20-40%, a fire time complete rolling, and finishing temperature >=400 DEG C roll rear air cooler cooling, cylinder is made
Shape Forging；
Step 14: solution treatment:
Aluminium alloy upright quenching furnace furnace temperature is risen to 502 DEG C, cylindrical forged piece room temperature shove charge, in 499-505 DEG C of heat preservation 4-6h,
Water temperature heating is opened into water circulation system, quenching shift time before entering water to 30 DEG C before quenching
< 10s, cooling time in water is no less than 20min, and moves up and down and quench tooling, to guarantee interior hole site
Cooling effect is transferred in aging furnace within 3min after water outlet；
Step 15: ageing treatment:
Cylindrical forged piece is warming up to 160-165 DEG C with furnace, keeps the temperature 10-15h, comes out of the stove after timeliness air-cooled, the nearly same sex of three-dimensional is made
High-performance aluminium alloy cylindrical forged piece；
Step 10 six: quality testing:
It requires to carry out ultrasonic examination according to the A grade in GJB1580A-2004 standard, cuts sampling ring at one end, respectively
For 4 quadrants, each quadrant cuts tangential, axial direction, radial each one of sample, carries out room temperature tensile properties detection, in sampling ring
Any position cut that a high power sample detects the presence of burning and a coarse micro-grain sample detects the presence of defect.
Preferably, quality control standard is as follows in step 2:
A, chemical component: the chemical component of ingot casting different location should meet GB/T3190-2008 " deformation aluminium and aluminium alloying
Study point ", it is desirable that at detection core, R/2, edge position, the Cu element mass fraction absolute value of ingot casting edge and core position
Difference must not exceed 0.3%；
B, surface quality: being not allow for drawing crack, bubble and corrosion pit, does not allow there are metal tumor, draws trace, stratification or cold
Every the defect of, shrinkage cavity；
C, it mirco structure: is gradually detected by GB/T3246 regulation, is not allow for burning；
D, it macrostructure: is gradually detected by the detection of GB/T3246 regulation, does not allow there are crackle, stomata, is mingled with, compound
Segregation is assembled, feather is brilliant and the defect of bright crystal, loose≤1 grade, grain size≤2 grade；
E, hydrogen content: ingot casting melt hydrogen content controls within 0.10ml/100g.
Preferably, upper and lower hammer anvil is heated before multidirectional forging in step 4, it is desirable that in 400 DEG C of heat preservation 10- 12h, open
Begin to be lubricated before forging in upper and lower anvil face smearing graphite, so that blank Uniform Flow.
Preferably, in the multidirectional forging process in step 4 with asphalt blocks blank surface mark " Z ", " X ",
" Y " to prevent certain direction upsetting, pulls out the twice or finally axial non-Z-direction of blank.
Preferably, in the multidirectional forging process in step 4 control push speed, ingot casting come out of the stove after first time jumping-up, press
In 10-12mm/s, other upsetting pulls deform Soft reduction rate control in 10- for Soft reduction rate control
15mm/s。
The beneficial effects of the present invention are:
1) of the invention by respectively carrying out upsetting to ingot casting axial direction, radial direction, circumferential direction in multidirectional forging process, pulling out deformation, and in core
Axis pulling, saddle support reaming carry out three-phase main transformer shape to ring billet respectively in looping mill rolling process, in entire forming process, to aluminium alloy
Nearly impartial deformation is realized in three directions of cylindrical forged piece, makes the nearly same sex of product three-dimensional performance.
2) present invention is coarse in sufficiently broken as-cast structure by carrying out high temperature large deformation to blank during cogging
Remaining crystalline phase, so that it sufficiently dissolved, be uniformly distributed in tissue, mentioned for the second phase even dispersion distribution in heat treatment process
Prepare for tissue.
3) present invention uses high temperature solid solution, low temperature aging heat treatment process: solution treatment is being only below alloy burnt temperature 5
DEG C or so at a temperature of carry out, dissolve the second phase in tissue sufficiently, improve degree of super saturation.When carrying out at a lower temperature
Effect processing, obtains higher peak strength, and with plasticity index matched well, utmostly excavated material potential, plays material
Performance boundary.
4) oversized for cylindrical forged piece short transverse, it is difficult to residual stress to be reduced by cold deformation, the present invention proposes
Small Soft reduction rate is used during hammer cogging, and reduces product manufacturing mistake in the mode that solid solution process improves quenching water temperature
Stress in journey enables aluminum alloy to the residual stress control of cylindrical forged piece in a certain range.
Detailed description of the invention
Fig. 1 is the flow chart of multiway forging of the present invention；
It is described in detail below with reference to the embodiment of the present invention referring to attached drawing.
Specific embodiment
Below with reference to embodiment, the invention will be further described:
A kind of nearly same sex high-performance aluminium alloy cylindrical forged piece manufacturing process of three-dimensional, the specific steps are as follows:
Step 1: raw materials size design:
Raw material use the aluminium alloy round cast ingot of semi-continuous casting method production, consider that design of part size, forging technology disappear
Consumption, machining allowance factor, it is desirable that ingot casting ratio of height to diameter L/D=2-3；
Step 2: ingot quality detection:
As-ingot is annealed state, is carrying out quality control to ingot casting；
Step 3: heating before ingot casting forging:
Ingot casting room temperature shove charge, heating process are divided into two stages, the first stage: are warming up to 430-450 from room temperature through 2h
DEG C, and keep the temperature 1h；Second stage, then 480 DEG C are warming up to 1h, in 475-485 DEG C of heat preservation 18-25h；
Step 4: multiway forging:
To three mutually orthogonal directions of ingot casting, i.e. X, Y, Z axis in right hand fix duty, a jumping-up, pulling are carried out respectively
Deformation carries out three upsettings altogether, three pulls out, and blank final forging temperature >=420 DEG C are made；If the axial direction of starting ingot is Z-direction, then deformation sequence
Are as follows: for Z-direction jumping-up-X to pulling-X to jumping-up-Y-direction pulling-Y-direction jumping-up-Z-direction pulling, wherein Upsetting amount is 55-65%, is pulled out
Long deflection is 40-50%；
Step 5: heating is melted down:
By blank in 475-485 DEG C of heat preservation 3-5h；It is preheated between upper and lower hammer anvil with hot steel ingot；
Step 6: Z-direction jumping-up, punching:
Blank carries out Z-direction jumping-up again after coming out of the stove, press Soft reduction rate is controlled in 10-12mm/s, and adjusts blank axis
Direction, guarantees the verticality of blank, after jumping-up to H=900-1200mm, carries out chamfered edge, round as a ball, then jumping-up prepares to round pie
Punching；Contact preheating is carried out to formed punch before punching, cake is placed on to the center of lower anvil face using press centralising device, is used
Pre- primary drying blind hole in a state of excitement divides 4-6 pressure, pushes 80-100mm every time, and graphite lubrication is smeared before formed punch pushes every time
Agent, final Web thickness 100-150mm depress to blank end face smooth after pre- punching, then sweeps away gross weight with end stamping punch,
To obtain the ring billet with centre bore, ring billet final forging temperature >=420 DEG C；
Step 7: heating is melted down:
By ring billet in 475-485 DEG C of heat preservation 3-5h；
Step 8: fullering with the core bar:
Ring billet heats plug and V-shape anvil before coming out of the stove, and in 400 DEG C of heat preservation 10-12h, ring billet carries out core on V-shape anvil
Graphitic lubricant is smeared in axis pulling on upper hammer anvil and V-shape anvil before forging, after pulling to desired size, clamping blank to lower flat anvil
On, carry out flat end face, ring billet final forging temperature >=420 DEG C；
Step 9: heating is melted down:
By ring billet in 475-485 DEG C of heat preservation 3-5h；
Step 10: saddle support reaming:
Saddle is heated before reaming, in 400 DEG C of heat preservation 10-12h, several circles of saddle support reaming point are carried out, single depression
Amount control replaces the saddle of suitable dimension according to blank internal diameter in 60-80mm, until reaming to ring billet desired size, expands
Blank is clamped behind hole to lower flat anvil, flat end face, ring billet final forging temperature >=420 DEG C；
Step 11: machining:
Ring billet inner and outer surfaces and upper and lower end face are machined out, it is desirable that the defect that surface is visible by naked eyes, surface are thick
Rugosity Ra12.5；
Step 12: preceding heating is rolled:
Ring billet is heated using electric furnace, ring billet room temperature shove charge keeps the temperature 3-8h after being warming up to 445-455 DEG C；
Step 13: looping mill rolling:
Roll is preheated before rolling, 250-300 DEG C is preheated to, ring billet is rolled on diameter-axial NC looping mill
The operation of rolling is divided into four-stage by system, king roller linear velocity 900-1300mm/s, and the diameter growth rate of each stage ring billet is not
Same: breaking down stage diameter rate of rise is set as 3mm/s；Transition rolling sequence improves diameter growth rate, is improved by 3mm/s
To 5mm/s, then transit to 8mm/s；Main rolling sequence is the Main Stage that ring diameter is grown up, and material deformation is more violent, will be straight
Diameter rate of rise is set as 8mm/s；Deceleration rolling sequence need to increase ring surface temperature early period in the second half of rolling and carry out
Adjustment reduces diameter growth rate to 1mm/s；Rolling reduction 20-40%, a fire time are completed to roll, finishing temperature >=400 DEG C,
It is cooling to roll rear air cooler, cylindrical forged piece is made；
Step 14: solution treatment:
Aluminium alloy upright quenching furnace furnace temperature is risen to 502 DEG C, cylindrical forged piece room temperature shove charge, in 499-505 DEG C of heat preservation 4-6h,
By water temperature heating to 30 DEG C before quenching, enters and open water circulation system before water, quenching shift time < 10s, when cooling in water
Between no less than 20min, and move up and down and quench tooling, with the cooling effect of hole site in guaranteeing, shifted within 3min after water outlet
Into aging furnace；
Step 15: ageing treatment:
Cylindrical forged piece is warming up to 160-165 DEG C with furnace, keeps the temperature 10-15h, comes out of the stove after timeliness air-cooled, the nearly same sex of three-dimensional is made
High-performance aluminium alloy cylindrical forged piece；
Step 10 six: quality testing:
It requires to carry out ultrasonic examination according to the A grade in GJB1580A-2004 standard, cuts sampling ring at one end, respectively
For 4 quadrants, each quadrant cuts tangential, axial direction, radial each one of sample, carries out room temperature tensile properties detection, in sampling ring
Any position cut that a high power sample detects the presence of burning and a coarse micro-grain sample detects the presence of defect.
Preferably, quality control standard is as follows in step 2:
A, chemical component: the chemical component of ingot casting different location should meet GB/T3190-2008 " deformation aluminium and aluminium alloying
Study point ", it is desirable that at detection core, R/2, edge position, the Cu element mass fraction absolute value of ingot casting edge and core position
Difference must not exceed 0.3%；
B, surface quality: being not allow for drawing crack, bubble and corrosion pit, does not allow there are metal tumor, draws trace, stratification or cold
Every the defect of, shrinkage cavity；
C, it mirco structure: is gradually detected by GB/T3246 regulation, is not allow for burning；
D, it macrostructure: is gradually detected by the detection of GB/T3246 regulation, does not allow there are crackle, stomata, is mingled with, compound
Segregation is assembled, feather is brilliant and the defect of bright crystal, loose≤1 grade, grain size≤2 grade；
E, hydrogen content: ingot casting melt hydrogen content controls within 0.10ml/100g.
Preferably, upper and lower hammer anvil is heated before multidirectional forging in step 4, it is desirable that in 400 DEG C of heat preservation 10- 12h, open
Begin to be lubricated before forging in upper and lower anvil face smearing graphite, so that blank Uniform Flow.
Preferably, " Z ", " X ", " Y " are marked in blank surface with asphalt blocks in the multidirectional forging process in step 4, to prevent certain
The twice or finally axial non-Z-direction of blank is pulled out in direction upsetting.
Preferably, in the multidirectional forging process in step 4 control push speed, ingot casting come out of the stove after first time jumping-up, press
In 10-12mm/s, other upsetting pulls deform Soft reduction rate control in 10- 15mm/s for Soft reduction rate control.
Use method proposed by the present invention by taking T6 state aluminum alloy materials as an example, the T6 state aluminium alloy cylindrical forged piece produced
(outer diameter Φ 1000-2000mm, height 800-2000mm), the mechanical performance index reached is as follows: tangential: Rm=440-
460MPa, Rp0.2=380-400MPa, A=10.5-13.5%；It is axial: Rm=440- 460MPa, Rp0.2=370-390MPa, A
=10-13.5%；It is radial: Rm=450-460MPa, Rp0.2=380- 390MPa, A=8.5-10%.It cuts, the intensity of axis, radial direction
It is close with plasticity index, the nearly same sex in three directions, and the far super domestic and international common forging acceptance criteria of performance indicator, reach domestic
Outer top standard.
Embodiment one
By taking the key component 2A14 aluminium alloy cylindrical forged piece in certain air force's emphasis model as an example, 1040 × Φ of finished size Φ
870 × 1000mm, comprising the following steps:
Step 1: raw materials size design:
Raw material use the aluminium alloy round cast ingot of semi-continuous casting method production, consider that design of part size, forging technology disappear
Consumption, machining allowance factor, it is desirable that ingot casting ratio of height to diameter L/D=2, ingot diameters Φ 600mm, height 1200mm；
Step 2: ingot quality detection:
As-ingot is annealed state, is carrying out quality control to ingot casting；
Step 3: heating before ingot casting forging:
Ingot casting room temperature shove charge, heating process are divided into two stages, the first stage: 430 DEG C are warming up to from room temperature through 2h, and
Keep the temperature 1h；Second stage, then 480 DEG C are warming up to 1h, in 475 DEG C of heat preservation 18h；
Step 4: multiway forging:
To three mutually orthogonal directions of ingot casting, i.e. X, Y, Z axis in right hand fix duty, a jumping-up, pulling are carried out respectively
Deformation carries out three upsettings altogether, three pulls out, and 420 DEG C of blank final forging temperature is made；If the axial direction of starting ingot is Z-direction, then deformation sequence
Are as follows: Z-direction jumping-up-X is to pulling-X to jumping-up-Y-direction pulling-Y-direction jumping-up-Z-direction pulling, and wherein Upsetting amount is 55%, pulling
Deflection is 40%；
Step 5: heating is melted down:
By blank in 475 DEG C of heat preservation 3h；It is preheated between upper and lower hammer anvil with hot steel ingot；
Step 6: Z-direction jumping-up, punching:
Blank carries out Z-direction jumping-up again after coming out of the stove, press Soft reduction rate is controlled in 10mm/s, and adjusts blank axis side
To guaranteeing the verticality of blank, after jumping-up to H=900mm, carry out chamfered edge, round as a ball, then jumping-up prepares punching to round pie；Punching
Contact preheating is carried out to formed punch before hole, cake is placed on to the center of lower anvil face using press centralising device, in advance in a state of excitement
Primary drying blind hole, point 4 pressures, pushes 80mm, and graphitic lubricant, final gross weight are smeared before formed punch pushes every time every time
Thickness 100mm, depress to blank end face smooth after pre- punching, then gross weight is swept away with whole stamping punch, to obtain with centre bore
Ring billet, 420 DEG C of ring billet final forging temperature；
Step 7: heating is melted down:
By ring billet in 475 DEG C of heat preservation 3h；
Step 8: fullering with the core bar:
Ring billet heats plug and V-shape anvil before coming out of the stove, and in 400 DEG C of heat preservation 10h, ring billet carries out mandrel on V-shape anvil
Graphitic lubricant is smeared in pulling on upper hammer anvil and V-shape anvil before forging, after pulling to desired size, clamped on blank to lower flat anvil,
Progress flat end face, 420 DEG C of ring billet final forging temperature；
Step 9: heating is melted down:
By ring billet in 475 DEG C of heat preservation 3h；
Step 10: saddle support reaming:
Saddle is heated before reaming, in 400 DEG C of heat preservation 10h, several circles of saddle support reaming point are carried out, single depression amount control
System clamps after reaming according to the saddle that blank internal diameter replaces suitable dimension until reaming to ring billet desired size in 60mm
Blank is to lower flat anvil, flat end face, and 420 DEG C of ring billet final forging temperature；
Step 11: machining:
Ring billet inner and outer surfaces and upper and lower end face are machined out, it is desirable that the defect that surface is visible by naked eyes, surface are thick
Rugosity Ra12.5；
Step 12: preceding heating is rolled:
Ring billet is heated using electric furnace, ring billet room temperature shove charge keeps the temperature 3h after being warming up to 445 DEG C；
Step 13: looping mill rolling:
Roll is preheated before rolling, 250 DEG C is preheated to, ring billet is rolled on diameter-axial NC looping mill, it is main
The operation of rolling is divided into four-stage by roll linear velocity 900mm/s, and the diameter growth rate of each stage ring billet is different: breaking down rank
Section diameter rate of rise is set as 3mm/s；Transition rolling sequence improves diameter growth rate, is improved by 3mm/s to 5mm/s, then
Transit to 8mm/s；Main rolling sequence is the Main Stage that ring diameter is grown up, and material deformation is more violent, by diameter rate of rise
It is set as 8mm/s；Deceleration rolling sequence need to increase ring surface temperature early period in the second half of rolling and be adjusted, reduce
Diameter growth rate is to 1mm/s；Rolling reduction 20%, a fire time complete rolling, 400 DEG C of finishing temperature, roll rear air cooler cooling,
Cylindrical forged piece is made；
Step 14: solution treatment:
Aluminium alloy upright quenching furnace furnace temperature is risen to 502 DEG C, cylindrical forged piece room temperature shove charge is quenched in 499 DEG C of heat preservation 4- 6h
Water temperature heating is opened into water circulation system, quenching shift time 5s, cooling time in water before entering water to 30 DEG C before fiery
20min, and move up and down and quench tooling, to guarantee the cooling effect of interior hole site, aging furnace is transferred within 3min after water outlet
In；
Step 15: ageing treatment:
Cylindrical forged piece is warming up to 160 DEG C with furnace, keeps the temperature 10h, comes out of the stove after timeliness air-cooled, the nearly same sex high-performance aluminum of three-dimensional is made
Alloy cylindrical forged piece；
Step 10 six: quality testing:
It requires to carry out ultrasonic examination according to the A grade in GJB1580A-2004 standard, cuts sampling ring at one end, respectively
For 4 quadrants, each quadrant cuts tangential, axial direction, radial each one of sample, carries out room temperature tensile properties detection, in sampling ring
Any position cut that a high power sample detects the presence of burning and a coarse micro-grain sample detects the presence of defect.
Preferably, quality control standard is as follows in step 2:
A, chemical component: the chemical component of ingot casting different location should meet GB/T3190-2008 " deformation aluminium and aluminium alloying
Study point ", it is desirable that at detection core, R/2, edge position, the Cu element mass fraction absolute value of ingot casting edge and core position
Difference must not exceed 0.3%；
B, surface quality: being not allow for drawing crack, bubble and corrosion pit, does not allow there are metal tumor, draws trace, stratification or cold
Every the defect of, shrinkage cavity；
C, it mirco structure: is gradually detected by GB/T3246 regulation, is not allow for burning；
D, it macrostructure: is gradually detected by the detection of GB/T3246 regulation, does not allow there are crackle, stomata, is mingled with, compound
Segregation is assembled, feather is brilliant and the defect of bright crystal, loose≤1 grade, grain size≤2 grade；
E, hydrogen content: ingot casting melt hydrogen content controls within 0.10ml/100g.
Preferably, upper and lower hammer anvil is heated before multidirectional forging in step 4, it is desirable that in 400 DEG C of heat preservation 10h, start to forge
It smears graphite in upper and lower anvil face before making to be lubricated, so that blank Uniform Flow.
Preferably, " Z ", " X ", " Y " are marked in blank surface with asphalt blocks in the multidirectional forging process in step 4, to prevent certain
The twice or finally axial non-Z-direction of blank is pulled out in direction upsetting.
Preferably, control pushes speed, jumping-up after ingot casting is come out of the stove, press Soft reduction rate in the multidirectional forging process in step 4
Control is in 10mm/s.
It is as follows to measure mechanical performance index: tangential: Rm=452MPa, Rp0.2=394MPa, A=12%；It is axial: Rm=
453.5MPa, Rp0.2=389.3MPa, A=12.1%；It is radial: Rm=458.3MPa, Rp0.2=382MPa, A=9%.
Embodiment two
By taking the key component 2A14 aluminium alloy cylindrical forged piece in certain air force's emphasis model as an example, 1040 × Φ of finished size Φ
870 × 1000mm, comprising the following steps:
Step 1: raw materials size design:
Raw material use the aluminium alloy round cast ingot of semi-continuous casting method production, consider that design of part size, forging technology disappear
Consumption, machining allowance factor, it is desirable that ingot casting ratio of height to diameter L/D=3, ingot diameters Φ 600mm, height 1800mm；
Step 2: ingot quality detection:
As-ingot is annealed state, is carrying out quality control to ingot casting；
Step 3: heating before ingot casting forging:
Ingot casting room temperature shove charge, heating process are divided into two stages, the first stage: 450 DEG C are warming up to from room temperature through 2h, and
Keep the temperature 1h；Second stage, then 480 DEG C are warming up to 1h, in 485 DEG C of heat preservation 25h；
Step 4: multiway forging:
To three mutually orthogonal directions of ingot casting, i.e. X, Y, Z axis in right hand fix duty, a jumping-up, pulling are carried out respectively
Deformation carries out three upsettings altogether, three pulls out, and 421 DEG C of blank final forging temperature is made；If the axial direction of starting ingot is Z-direction, then deformation sequence
Are as follows: Z-direction jumping-up-X is to pulling-X to jumping-up-Y-direction pulling-Y-direction jumping-up-Z-direction pulling, and wherein Upsetting amount is 65%, pulling
Deflection is 50%；
Step 5: heating is melted down:
By blank in 485 DEG C of heat preservation 5h；It is preheated between upper and lower hammer anvil with hot steel ingot；
Step 6: Z-direction jumping-up, punching:
Blank carries out Z-direction jumping-up again after coming out of the stove, press Soft reduction rate is controlled in 12mm/s, and adjusts blank axis side
To guaranteeing the verticality of blank, after jumping-up to H=1200mm, carry out chamfered edge, round as a ball, then jumping-up prepares punching to round pie；
Contact preheating is carried out to formed punch before punching, cake is placed on to the center of lower anvil face using press centralising device, with pre- punching
Formed punch rushes blind hole, and point 6 pressures push 100mm, and smear graphitic lubricant before formed punch pushes every time every time, finally connect
Skin thickness 150mm, depress to blank end face smooth after pre- punching, then gross weight is swept away with whole stamping punch, to obtain with center
The ring billet in hole, 421 DEG C of ring billet final forging temperature；
Step 7: heating is melted down:
By ring billet in 485 DEG C of heat preservation 5h；
Step 8: fullering with the core bar:
Ring billet heats plug and V-shape anvil before coming out of the stove, and in 400 DEG C of heat preservation 12h, ring billet carries out mandrel on V-shape anvil
Graphitic lubricant is smeared in pulling on upper hammer anvil and V-shape anvil before forging, after pulling to desired size, clamped on blank to lower flat anvil,
Progress flat end face, 421 DEG C of ring billet final forging temperature；
Step 9: heating is melted down:
By ring billet in 485 DEG C of heat preservation 5h；
Step 10: saddle support reaming:
Saddle is heated before reaming, in 400 DEG C of heat preservation 12h, several circles of saddle support reaming point are carried out, single depression amount control
System clamps after reaming according to the saddle that blank internal diameter replaces suitable dimension until reaming to ring billet desired size in 80mm
Blank is to lower flat anvil, flat end face, ring billet final forging temperature >=420 DEG C；
Step 11: machining:
Ring billet inner and outer surfaces and upper and lower end face are machined out, it is desirable that the defect that surface is visible by naked eyes, surface are thick
Rugosity Ra12.5；
Step 12: preceding heating is rolled:
Ring billet is heated using electric furnace, ring billet room temperature shove charge keeps the temperature 3-8h after being warming up to 455 DEG C；
Step 13: looping mill rolling:
Roll is preheated before rolling, 300 DEG C is preheated to, ring billet is rolled on diameter-axial NC looping mill, it is main
The operation of rolling is divided into four-stage by roll linear velocity 1300mm/s, and the diameter growth rate of each stage ring billet is different: breaking down rank
Section diameter rate of rise is set as 3mm/s；Transition rolling sequence improves diameter growth rate, is improved by 3mm/s to 5mm/s, then
Transit to 8mm/s；Main rolling sequence is the Main Stage that ring diameter is grown up, and material deformation is more violent, by diameter rate of rise
It is set as 8mm/s；Deceleration rolling sequence need to increase ring surface temperature early period in the second half of rolling and be adjusted, reduce
Diameter growth rate is to 1mm/s；Rolling reduction 40%, a fire time complete rolling, 401 DEG C of finishing temperature, roll rear air cooler cooling,
Cylindrical forged piece is made；
Step 14: solution treatment:
Aluminium alloy upright quenching furnace furnace temperature is risen to 502 DEG C, cylindrical forged piece room temperature shove charge, in 505 DEG C of heat preservation 6h, quenching
It is preceding by water temperature heating to 30 DEG C, enter and open water circulation system before water, quenching shift time 8s, 21min cooling time in water,
And move up and down and quench tooling, to guarantee the cooling effect of interior hole site, it is transferred in aging furnace within 3min after water outlet；
Step 15: ageing treatment:
Cylindrical forged piece is warming up to 165 DEG C with furnace, keeps the temperature 15h, comes out of the stove after timeliness air-cooled, the nearly same sex high-performance aluminum of three-dimensional is made
Alloy cylindrical forged piece；
Step 10 six: quality testing:
It requires to carry out ultrasonic examination according to the A grade in GJB1580A-2004 standard, cuts sampling ring at one end, respectively
For 4 quadrants, each quadrant cuts tangential, axial direction, radial each one of sample, carries out room temperature tensile properties detection, in sampling ring
Any position cut that a high power sample detects the presence of burning and a coarse micro-grain sample detects the presence of defect.
Preferably, quality control standard is as follows in step 2:
A, chemical component: the chemical component of ingot casting different location should meet GB/T3190-2008 " deformation aluminium and aluminium alloying
Study point ", it is desirable that at detection core, R/2, edge position, the Cu element mass fraction absolute value of ingot casting edge and core position
Difference must not exceed 0.3%；
B, surface quality: being not allow for drawing crack, bubble and corrosion pit, does not allow there are metal tumor, draws trace, stratification or cold
Every the defect of, shrinkage cavity；
C, it mirco structure: is gradually detected by GB/T3246 regulation, is not allow for burning；
D, it macrostructure: is gradually detected by the detection of GB/T3246 regulation, does not allow there are crackle, stomata, is mingled with, compound
Segregation is assembled, feather is brilliant and the defect of bright crystal, loose≤1 grade, grain size≤2 grade；
E, hydrogen content: ingot casting melt hydrogen content controls within 0.10ml/100g.
Preferably, upper and lower hammer anvil is heated before multidirectional forging in step 4, it is desirable that in 400 DEG C of heat preservation 12h, start to forge
It smears graphite in upper and lower anvil face before making to be lubricated, so that blank Uniform Flow.
Preferably, " Z ", " X ", " Y " are marked in blank surface with asphalt blocks in the multidirectional forging process in step 4, to prevent certain
The twice or finally axial non-Z-direction of blank is pulled out in direction upsetting.
Preferably, in the multidirectional forging process in step 4 control push speed, ingot casting come out of the stove after first time jumping-up, press
In 12mm/s, other upsetting pulls deform Soft reduction rate control in 15mm/s for Soft reduction rate control.
It is as follows to measure mechanical performance index: tangential: Rm=459.1MPa, Rp0.2=394.4MPa, A=13%；It is axial: Rm
=450.8MPa, Rp0.2=389.8MPa, A=10.9%；It is radial: Rm=455.8MPa, Rp0.2=386.5MPa, A=
8.5%.
Embodiment three
By taking the key component 2A14 aluminium alloy cylindrical forged piece in certain air force's emphasis model as an example, 1040 × Φ of finished size Φ
870 × 1000mm, comprising the following steps:
Step 1: raw materials size design:
Raw material use the aluminium alloy round cast ingot of semi-continuous casting method production, consider that design of part size, forging technology disappear
Consumption, machining allowance factor, it is desirable that ingot casting ratio of height to diameter L/D=2.5, ingot diameters Φ 600mm, height 1500mm；
Step 2: ingot quality detection:
As-ingot is annealed state, is carrying out quality control to ingot casting；
Step 3: heating before ingot casting forging:
Ingot casting room temperature shove charge, heating process are divided into two stages, the first stage: 440 DEG C are warming up to from room temperature through 2h, and
Keep the temperature 1h；Second stage, then 480 DEG C are warming up to 1h, in 480 DEG C of heat preservation 19h；
Step 4: multiway forging:
To three mutually orthogonal directions of ingot casting, i.e. X, Y, Z axis in right hand fix duty, a jumping-up, pulling are carried out respectively
Deformation carries out three upsettings altogether, three pulls out, and 422 DEG C of blank final forging temperature is made；If the axial direction of starting ingot is Z-direction, then deformation sequence
Are as follows: Z-direction jumping-up-X is to pulling-X to jumping-up-Y-direction pulling-Y-direction jumping-up-Z-direction pulling, and wherein Upsetting amount is 60%, pulling
Deflection is 45%；
Step 5: heating is melted down:
By blank in 480 DEG C of heat preservation 4h；It is preheated between upper and lower hammer anvil with hot steel ingot；
Step 6: Z-direction jumping-up, punching:
Blank carries out Z-direction jumping-up again after coming out of the stove, press Soft reduction rate is controlled in 11mm/s, and adjusts blank axis side
To guaranteeing the verticality of blank, after jumping-up to H=1000mm, carry out chamfered edge, round as a ball, then jumping-up prepares punching to round pie；
Contact preheating is carried out to formed punch before punching, cake is placed on to the center of lower anvil face using press centralising device, with pre- punching
Formed punch rushes blind hole, and point 5 pressures push 90mm, and smear graphitic lubricant before formed punch pushes every time every time, finally connect
Skin thickness 130mm, depress to blank end face smooth after pre- punching, then gross weight is swept away with whole stamping punch, to obtain with center
The ring billet in hole, 422 DEG C of ring billet final forging temperature；
Step 7: heating is melted down:
By ring billet in 480 DEG C of heat preservation 4h；
Step 8: fullering with the core bar:
Ring billet heats plug and V-shape anvil before coming out of the stove, and in 400 DEG C of heat preservation 11h, ring billet carries out mandrel on V-shape anvil
Graphitic lubricant is smeared in pulling on upper hammer anvil and V-shape anvil before forging, after pulling to desired size, clamped on blank to lower flat anvil,
Progress flat end face, 422 DEG C of ring billet final forging temperature；
Step 9: heating is melted down:
By ring billet in 480 DEG C of heat preservation 4h；
Step 10: saddle support reaming:
Saddle is heated before reaming, in 400 DEG C of heat preservation 11h, several circles of saddle support reaming point are carried out, single depression amount control
System clamps after reaming according to the saddle that blank internal diameter replaces suitable dimension until reaming to ring billet desired size in 70mm
Blank is to lower flat anvil, flat end face, and 422 DEG C of ring billet final forging temperature；
Step 11: machining:
Ring billet inner and outer surfaces and upper and lower end face are machined out, it is desirable that the defect that surface is visible by naked eyes, surface are thick
Rugosity Ra12.5；
Step 12: preceding heating is rolled:
Ring billet is heated using electric furnace, ring billet room temperature shove charge keeps the temperature 3-8h after being warming up to 450 DEG C；
Step 13: looping mill rolling:
Roll is preheated before rolling, 260 DEG C is preheated to, ring billet is rolled on diameter-axial NC looping mill, it is main
The operation of rolling is divided into four-stage by roll linear velocity 1000mm/s, and the diameter growth rate of each stage ring billet is different: breaking down rank
Section diameter rate of rise is set as 3mm/s；Transition rolling sequence improves diameter growth rate, is improved by 3mm/s to 5mm/s, then
Transit to 8mm/s；Main rolling sequence is the Main Stage that ring diameter is grown up, and material deformation is more violent, by diameter rate of rise
It is set as 8mm/s；Deceleration rolling sequence need to increase ring surface temperature early period in the second half of rolling and be adjusted, reduce
Diameter growth rate is to 1mm/s；Rolling reduction 30%, a fire time complete rolling, 402 DEG C of finishing temperature, roll rear air cooler cooling,
Cylindrical forged piece is made；
Step 14: solution treatment:
Aluminium alloy upright quenching furnace furnace temperature is risen to 502 DEG C, cylindrical forged piece room temperature shove charge, in 500 DEG C of heat preservation 5h, quenching
It is preceding by water temperature heating to 30 DEG C, enter and open water circulation system before water, quenching shift time 9s, 22min cooling time in water,
And move up and down and quench tooling, to guarantee the cooling effect of interior hole site, it is transferred in aging furnace within 3min after water outlet；
Step 15: ageing treatment:
Cylindrical forged piece is warming up to 163 DEG C with furnace, keeps the temperature 12h, comes out of the stove after timeliness air-cooled, the nearly same sex high-performance aluminum of three-dimensional is made
Alloy cylindrical forged piece；
Step 10 six: quality testing:
It requires to carry out ultrasonic examination according to the A grade in GJB1580A-2004 standard, cuts sampling ring at one end, respectively
For 4 quadrants, each quadrant cuts tangential, axial direction, radial each one of sample, carries out room temperature tensile properties detection, in sampling ring
Any position cut that a high power sample detects the presence of burning and a coarse micro-grain sample detects the presence of defect.
Preferably, quality control standard is as follows in step 2:
A, chemical component: the chemical component of ingot casting different location should meet GB/T3190-2008 " deformation aluminium and aluminium alloying
Study point ", it is desirable that at detection core, R/2, edge position, the Cu element mass fraction absolute value of ingot casting edge and core position
Difference must not exceed 0.3%；
B, surface quality: being not allow for drawing crack, bubble and corrosion pit, does not allow there are metal tumor, draws trace, stratification or cold
Every the defect of, shrinkage cavity；
C, it mirco structure: is gradually detected by GB/T3246 regulation, is not allow for burning；
D, it macrostructure: is gradually detected by the detection of GB/T3246 regulation, does not allow there are crackle, stomata, is mingled with, compound
Segregation is assembled, feather is brilliant and the defect of bright crystal, loose≤1 grade, grain size≤2 grade；
E, hydrogen content: ingot casting melt hydrogen content controls within 0.10ml/100g.
Preferably, upper and lower hammer anvil is heated before multidirectional forging in step 4, it is desirable that in 400 DEG C of heat preservation 11h, start to forge
It smears graphite in upper and lower anvil face before making to be lubricated, so that blank Uniform Flow.
Preferably, " Z ", " X ", " Y " are marked in blank surface with asphalt blocks in the multidirectional forging process in step 4, to prevent certain
The twice or finally axial non-Z-direction of blank is pulled out in direction upsetting.
Preferably, in the multidirectional forging process in step 4 control push speed, ingot casting come out of the stove after first time jumping-up, press
In 11mm/s, other upsetting pulls deform Soft reduction rate control in 12mm/s for Soft reduction rate control.
It is as follows to measure mechanical performance index: tangential: Rm=449.5MPa, Rp0.2=380.5MPa, A=12.8%；It is axial:
Rm=447.8MPa, Rp0.2=375MPa, A=11.5%；It is radial: Rm=454.3MPa, Rp0.2=385MPa, A=9.1%.
The present invention is exemplarily described above in conjunction with specific embodiment, it is clear that the present invention implements not by upper
The limitation of mode is stated, as long as using the various improvement that the inventive concept and technical scheme of the present invention carry out, or not improved straight
It scoops out for other occasions, it is within the scope of the present invention.
Claims (5)
1. a kind of nearly same sex high-performance aluminium alloy cylindrical forged piece manufacturing process of three-dimensional, which is characterized in that specific step is as follows:
Step 1: raw materials size design:
Raw material use the aluminium alloy round cast ingot of semi-continuous casting method production, consider design of part size, forging technology consumption, machine
Machining allowance factor, it is desirable that ingot casting ratio of height to diameter L/D=2-3；
Step 2: ingot quality detection:
As-ingot is annealed state, is carrying out quality control to ingot casting；
Step 3: heating before ingot casting forging:
Ingot casting room temperature shove charge, heating process are divided into two stages, the first stage: being warming up to 430-450 DEG C from room temperature through 2h, and protect
Warm 1h；Second stage, then 480 DEG C are warming up to 1h, in 475-485 DEG C of heat preservation 18-25h；
Step 4: multiway forging:
To three mutually orthogonal directions of ingot casting, i.e. X, Y, Z axis in right hand fix duty, a jumping-up, pulling deformation are carried out respectively,
Three upsettings are carried out altogether, three are pulled out, and blank final forging temperature >=420 DEG C are made；If the axial direction of starting ingot is Z-direction, then deformation sequence are as follows: Z
To jumping-up-X to pulling-X to jumping-up-Y-direction pulling-Y-direction jumping-up-Z-direction pulling, wherein Upsetting amount is 55-65%, and pulling becomes
Shape amount is 40-50%；
Step 5: heating is melted down:
By blank in 475-485 DEG C of heat preservation 3-5h；It is preheated between upper and lower hammer anvil with hot steel ingot；
Step 6: Z-direction jumping-up, punching:
Blank carries out Z-direction jumping-up again after coming out of the stove, press Soft reduction rate is controlled in 10-12mm/s, and adjusts blank axis direction,
The verticality for guaranteeing blank after jumping-up to H=900-1200mm, carries out chamfered edge, round as a ball, then jumping-up prepares punching to round pie；
Contact preheating is carried out to formed punch before punching, cake is placed on to the center of lower anvil face using press centralising device, with pre- punching
Formed punch rushes blind hole, divides 4-6 pressure, pushes 80-100mm every time, and graphitic lubricant is smeared before formed punch pushes every time, most
Whole Web thickness 100-150mm, depress to blank end face smooth after pre- punching, then gross weight is swept away with end stamping punch, to obtain
Obtain the ring billet with centre bore, ring billet final forging temperature >=420 DEG C；
Step 7: heating is melted down:
By ring billet in 475-485 DEG C of heat preservation 3-5h；
Step 8: fullering with the core bar:
Ring billet heats plug and V-shape anvil before coming out of the stove, and in 400 DEG C of heat preservation 10-12h, ring billet carries out mandrel on V-shape anvil and pulls out
It is long, graphitic lubricant is smeared before forging on upper hammer anvil and V-shape anvil, after pulling to desired size, is clamped on blank to lower flat anvil, into
Row flat end face, ring billet final forging temperature >=420 DEG C；
Step 9: heating is melted down:
By ring billet in 475-485 DEG C of heat preservation 3-5h；
Step 10: saddle support reaming:
Saddle is heated before reaming, in 400 DEG C of heat preservation 10-12h, several circles of saddle support reaming point are carried out, single depression amount control
System replaces the saddle of suitable dimension according to blank internal diameter, until reaming to ring billet desired size, after reaming in 60-80mm
Blank is clamped to lower flat anvil, flat end face, ring billet final forging temperature >=420 DEG C；
Step 11: machining:
Ring billet inner and outer surfaces and upper and lower end face are machined out, it is desirable that the defect that surface is visible by naked eyes, surface roughness
Ra12.5；
Step 12: preceding heating is rolled:
Ring billet is heated using electric furnace, ring billet room temperature shove charge keeps the temperature 3-8h after being warming up to 445-455 DEG C；
Step 13: looping mill rolling:
Roll is preheated before rolling, 250-300 DEG C is preheated to, ring billet is rolled on diameter-axial NC looping mill, it is main
The operation of rolling is divided into four-stage by roll linear velocity 900-1300mm/s, and the diameter growth rate of each stage ring billet is different: just
It rolls stage diameter rate of rise and is set as 3mm/s；Transition rolling sequence improves diameter growth rate, is improved by 3mm/s to 5mm/
S, then transit to 8mm/s；Main rolling sequence is the Main Stage that ring diameter is grown up, and material deformation is more violent, and diameter is increased
Rate is set as 8mm/s；Deceleration rolling sequence need to increase ring surface temperature early period in the second half of rolling and be adjusted,
Diameter growth rate is reduced to 1mm/s；Rolling reduction 20-40%, a fire time complete rolling, finishing temperature >=400 DEG C, sky after rolling
Cooler is cooling, and cylindrical forged piece is made；
Step 14: solution treatment:
Aluminium alloy upright quenching furnace furnace temperature is risen to 502 DEG C, cylindrical forged piece room temperature shove charge, in 499-505 DEG C of heat preservation 4-6h, quenching
It is preceding by water temperature heating to 30 DEG C, open water circulation system before entering water, quenching shift time < 10s, cooling time in water is not
It less than 20min, and moves up and down and quenches tooling, to guarantee the cooling effect of interior hole site, when being transferred within 3min after water outlet
It imitates in furnace；
Step 15: ageing treatment:
Cylindrical forged piece is warming up to 160-165 DEG C with furnace, keeps the temperature 10-15h, comes out of the stove after timeliness air-cooled, the high property of the nearly same sex of three-dimensional is made
It can aluminium alloy cylindrical forged piece；
Step 10 six: quality testing:
It requires to carry out ultrasonic examination according to the A grade in GJB1580A-2004 standard, cuts sampling ring at one end, be divided into 4
Quadrant, each quadrant cuts tangential, axial direction, radial each one of sample, carries out room temperature tensile properties detection, in any of sampling ring
Position cuts that a high power sample detects the presence of burning and a coarse micro-grain sample detects the presence of defect.
2. the nearly same sex high-performance aluminium alloy cylindrical forged piece manufacturing process of three-dimensional according to claim 1, which is characterized in that step
Quality control standard is as follows in rapid two:
A, chemical component: the chemical component of ingot casting different location should meet GB/T3190-2008, and " deformation aluminium and aluminium alloying study
Point ", it is desirable that detection core, the place R/2, edge position, the Cu element mass fraction absolute difference of ingot casting edge and core position is not
It obtains more than 0.3%；
B, surface quality: being not allow for drawing crack, bubble and corrosion pit, do not allow there are metal tumor, draw trace, stratification or cold shut,
The defect of shrinkage cavity；
C, it mirco structure: is gradually detected by GB/T3246 regulation, is not allow for burning；
D, macrostructure: gradually being detected by the detection of GB/T3246 regulation, is not allowed there are crackle, stomata, is mingled with, compound segregation
Assemble, feather is brilliant and the defect of bright crystal, loose≤1 grade, grain size≤2 grade；
E, hydrogen content: ingot casting melt hydrogen content controls within 0.10ml/100g.
3. the nearly same sex high-performance aluminium alloy cylindrical forged piece manufacturing process of three-dimensional according to claim 1, which is characterized in that step
Upper and lower hammer anvil is heated before multidirectional forging in rapid four, it is desirable that in 400 DEG C of heat preservation 10-12h, it is preceding in upper and lower anvil face to start forging
It smears graphite to be lubricated, so that blank Uniform Flow.
4. the nearly same sex high-performance aluminium alloy cylindrical forged piece manufacturing process of three-dimensional according to claim 1, which is characterized in that step
" Z ", " X ", " Y " are marked in blank surface with asphalt blocks in multidirectional forging process in rapid four, to prevent certain direction upsetting, is pulled out twice or most
The axial non-Z-direction of whole blank.
5. the nearly same sex high-performance aluminium alloy cylindrical forged piece manufacturing process of three-dimensional according to claim 1, which is characterized in that step
In multidirectional forging process in rapid four control push speed, ingot casting come out of the stove after first time jumping-up, press Soft reduction rate control in 10-
12mm/s, other upsetting pulls deform Soft reduction rate control in 10-15mm/s.
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