CN106216952A - A kind of wheel hub forging method - Google Patents
A kind of wheel hub forging method Download PDFInfo
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- CN106216952A CN106216952A CN201610645304.2A CN201610645304A CN106216952A CN 106216952 A CN106216952 A CN 106216952A CN 201610645304 A CN201610645304 A CN 201610645304A CN 106216952 A CN106216952 A CN 106216952A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P2700/00—Indexing scheme relating to the articles being treated, e.g. manufactured, repaired, assembled, connected or other operations covered in the subgroups
- B23P2700/50—Other automobile vehicle parts, i.e. manufactured in assembly lines
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Abstract
The invention discloses a kind of wheel hub forging method, comprise the following steps: a. profile extrusion, the thickness set by extruder extrusion and the aluminum alloy plate materials of width；B. preheat, the aluminum alloy plate materials extruded from extruder by the continuous on-line heating of firing equipment；C. fervent, use the cutting of fervent technique from the most warmed-up good aluminum alloy plate materials of firing equipment and to cut into the length formation square block blank preset；D. forge, the blank after earnestly is put in mould and forges and presses so that it is form dish type；E. dish type blank is punched out bulging；F. the blank of punching bulging is put into spinning machine and carry out rotary press modelling；G. the blank of rotary press modelling is carried out heat treatment and machining, obtain wheel hub finished product；Make forged hub in hgher efficiency, raw material availability is higher and product consistency is higher.
Description
Technical field
The present invention relates to forging field, more specifically, it relates to the forging method of a kind of reflectal wheel hub.
Background technology
World Auto Industry just towards light weight, at a high speed, the direction light with environmental pollution safe, energy-conservation, comfortable develop, therefore
Aluminum alloy spare part consumption in the car is increasing.Wheel hub, as one of vitals in running car system, is also
A kind of require higher security personnel's part, the weight of its not only bearing automobile, also embodies the appearance and modeling of automobile simultaneously.In the past
10 years, the annual average rate of increase of whole world aluminium alloy automobile hub yield reached 7.6%.As can be seen here, along with the need of automotive light weight technology
Seeking expanding day, aluminium alloy wheel hub the most progressively replaces traditional steel wheel hub in Hyundai Motor manufacture and is answered by promoting widely
With.
Conventional reflectal wheel hub is fabricated by with columned as-cast aluminum alloy for raw material.Owing to as cast condition aluminum closes
Gold usually there will be the casting flaw such as tissue coarse grains and pore, shrinkage cavity, loose, micro-crack, thus before excellent suitability for press forming,
Jumping-up operation would generally be carried out, make as-cast structure be changed into threadiness Deformation structure, eliminate the microdefect that metal inside exists,
Improve the moulding of metal and compactness, provide suitable blank for follow-up forging and molding.But its complex procedures, energy consumption are big, forging
Part cost is high.
For the problems referred to above, Application No. 201510739083.0 entitled " manufacture method of reflectal wheel hub "
Chinese patent uses hot rolling aluminium alloy and the tabular aluminium alloy of bulk is cut in the way of sawing the side of blank size
Sheet or disc-shaped, put into blank afterwards and forge after being preheating to forging temperature in heating furnace, thus before instead of
Jumping-up operation, although have and conventional processes is significantly improved, but still there is problems in that
(1) using sawing mode, can produce a lot of aluminium scrap bits, raw material causes certain waste；
(2) use and aluminium sheet entirety is carried out crisscross mode sawing, long processing time；
(3) after cutting into the square of designed size, then carrying out transporting, preheating, technique step is played many, adds technique duration.
Summary of the invention
It is an object of the invention to provide a kind of wheel hub forging efficiency height, raw material availability height and product consistency high to forge
Method.
For achieving the above object, realized by techniques below means: a kind of wheel hub forging method, comprise the following steps:
A. profile extrusion, the thickness set by extruder extrusion and the aluminum alloy plate materials of width；
B. preheat, the aluminum alloy plate materials extruded from extruder by the continuous on-line heating of firing equipment；
C. fervent, use the cutting of fervent technique to preset from the most warmed-up good aluminum alloy plate materials of firing equipment cutting into
Length forms square block blank；
D. forge, the blank after earnestly is put in mould and forges and presses so that it is form dish type；
E. dish type blank is punched out bulging；
F. the blank of punching bulging is put into spinning machine and carry out rotary press modelling；
G. the blank of rotary press modelling is carried out heat treatment and machining, obtain wheel hub finished product.
By technique scheme, melting process uses the side of extruder extrusion aluminium alloy plate
Formula, compared to the mode of hot-roll forming, because sheet material rolling is emanant formed product mode, and extruded be to collect
The molding mode of formula, so the aluminium alloy plate squeezed out has more preferable consistency and grainiess than rolling aluminium sheet, so that
Follow-up forged aluminium wheel hub product, at tensile strength, yield strength, elongation percentage etc., has had more preferable product quality and performances
Promote；Use the aluminium alloy plate direct-fired method of long material squeezed out, long for the aluminium alloy plate material method laterally entering stove,
Heat, decrease the heat space that adds of burner hearth, and be directly in the preheating that the aluminium alloy plate squeezed out is carried out, burner hearth
Preheating temperature is little with the temperature difference of aluminium alloy plate to be preheated, thus needs aluminium alloy plate to reach the heat of preheating temperature offer relatively
Little, it is achieved that to save the effect of energy consumption, and realize continuous production effect, improve working (machining) efficiency；Aluminium alloy forging material is the warmmest
The method cut, at plug for outlet the aluminium alloy heated, is cut off by required specification, utilizes action of gravity, directly sliding by runner
Enter forging mold, forge, it is achieved that get the raw materials ready and the continuous online production of synchronization of preheating step, promote the same of work efficiency
Time, economization equipment volume, and by originally needing the mode of vertical-horizontal saw cutting, change into and have only to a cutter and longitudinally earnestly just can realize
The preparation of blank, not only economization operation and also avoid the waste of the aluminum scrap produced by sawing, improve raw-material profit
With rate, energy-saving and emission-reduction；Described spinning machine uses horizontal spinning machine or vertical spinning machine, and spinning machine is all that this area is conventional
Spinning machine；Described machining includes trimming, polishes, polishes and application etc. processes.
It is optimized for further: the extruding raw material in described step a derives from aluminium bar founding.
Being optimized for further: described step d is divided into just forging step and finish-forging step, described just section step is by after earnestly
Blank is put in first forging mould and forges just base, and first base is put in finish-forging die and forges whole base by described finish-forging step.
By technique scheme, forging and stamping blank is divided into just forging and two steps of finish-forging, it is achieved the substep of blank is forged
Make, conveniently blank during forging is controlled and case study.
It is optimized for further: the preheating temperature of described step b is 430-470 DEG C.
Being optimized for further: the fervent technique of described step c includes hydraulic cutter, support agency, described support agency is used
To be withstood by the aluminum alloy plate materials spread out of from firing equipment, hydraulic cutter is located at the exit site of firing equipment by preheated aluminum
Sheet alloy cuts off.
By technique scheme, using hydraulic cutter, the most hydraulically powered mode motion stabilization driving force is big, is cutting off
Shaking little during aluminium alloy plate, otch lines smooths；And mode aluminium alloy plate withstood with support agency, on coordinating
During hydraulic cutter, the aluminium alloy plate stretching out burner hearth is unlikely to deform when cutting, and the Forming Quality of blank improves, and has only to control
Make the distance of hydraulic cutter and support agency and just can determine that by the specifications and models of blank after earnestly, easy to control.
It is optimized for further: before just forging and finish-forging, first first forging mould and finish-forging die are heated to 420-460 DEG C.
It is optimized for further: the heat treatment of described step g is T6 heat treatment；T6 heat treatment refers to that solution heat treatment is laggard
Row artificially aged state.
It is optimized for further: described aluminium bar is selected from 6XXX system or 7XXX line aluminium alloy；Described 6XXX line aluminium alloy
Selected from 6061 or 6082 aluminium alloys；Described 7XXX line aluminium alloy selected from 7A04,7B04,7075,7475,7050 or
7055 aluminium alloys, 6XXX system or 7XXX line aluminium alloy are heat-treatable strengthened aluminum alloy, and after heat treatment its intensity can be big
Width improves.
Being optimized for further: in described step d, the forging temperature of 6XXX line aluminium alloy is 510～560 DEG C；7XXX
The forging temperature of line aluminium alloy is 420～470 DEG C.
It is optimized for further: the extrusion pressure of the extruder in described step a is 700-900T.
Present invention advantage compared with prior art is:
(1) compared to the mode of rolling and forming plate, aluminium alloy plate extruding is the molding mode of collective-type, so aluminium alloy plate ratio
Rolling aluminium sheet has more preferable consistency and grainiess, so that follow-up forged aluminium wheel hub product, in tensile strength, surrender by force
Degree, elongation percentage etc., had more preferable product quality and performances to promote；
(2) directly it is squeezed into the long billot of design width, thus has only to carry out the long billot of rip cutting and just can obtain designed size
Square blank, saves crosscutting processing step, economization processing duration, improves efficiency；
(3) use fervent technique, compare hard iron and cut, substantially without the generation causing aluminum to consider to be worth doing, improve raw-material utilization rate；
(4) during long billot is preheated, blank is directly carried out, it is achieved get the raw materials ready and pre-heating technique synchronizes to carry out, significantly
Improve working (machining) efficiency.
Accompanying drawing explanation
Fig. 1 is the wheel hub forging method sequence logic block diagram of the present embodiment.
Detailed description of the invention
Being described in further detail invention below in conjunction with the accompanying drawings and by specific embodiment, following example are descriptive
, it not determinate protection scope of the present invention.
Embodiment 1, a kind of wheel hub forging method, see accompanying drawing 1, its be broadly divided into get the raw materials ready, forge and press, spinning, heat treatment and
Machine these big steps, on the basis of the aluminium alloy wheel hub of 17 inches, by aluminium alloy extruded for the 7A04 that thickness is 65mm
Sheet material earnestly becomes the box-shaped blank of a size of 350mm × 350mm × 65mm；
Stage of getting the raw materials ready therein is continuous way production technology in the present embodiment, and a. will use extruder extrusion after aluminium bar founding
The aluminum alloy plate materials of 350mm × 65mm；B. the aluminum alloy plate materials of extrusion is transmitted online and be heated up to 440 DEG C into preheating burner hearth, in advance
Heat treatment 30 minutes；C. the one end of the aluminum alloy plate materials out preheated from burner hearth withstands on support agency, the outlet of burner hearth
The hydraulic cutter aluminium alloy to preheat at place directly carries out online the most fervent, scale off blank by the work at himself gravity
Fall directly under with on the feeding chute of lower section.So, it is achieved the on-line continuous production effect in melting process, preheating procedure
Directly complete in the stage of getting the raw materials ready.
When step d. forges and presses, use the mode that just forging and finish-forging substep are carried out, and first will before just forging and finish-forging
Just forging mould and finish-forging die were heated to 450 DEG C in 20 minutes, and spraying lubricant on die-face, described lubrication
Agent such as synthetic waxs etc., put into the blank after earnestly in first forging mould, forge and press with the forging press of 1500 tons and forge
Just base, first base is put in finish-forging die and forges whole base by finish-forging step.
Before flow-forming step, also need to carry out step e. and dish type blank (whole base) is punched out bulging；Walk afterwards
Rapid f. spinning, puts into spinning machine by the blank of punching bulging and carries out rotary press modelling, on horizontal spinning machine, is forged by aluminium alloy wheel hub
Dabbing base tail top holds out against on spinning machine core, main shaft drive plug and aluminium alloy wheel hub forging and stamping blank to rotate, revolve simultaneously
Material is squeezed in the core of rotation by pinch roller from aluminium alloy wheel hub forging and stamping blank side, during spinning, aluminium alloy wheel hub is forged and pressed hair
Base blank heating, makes generation continuous print plastic deformation by spinning, obtains forging rotation aluminium alloy wheel hub.
Finally carrying out step g. heat treatment and machining, heat treatment is T6 heat treatment, carries out the laggard pedestrian of solution heat treatment
Man-hour effect state, machining then carries out trimming, polishes, polishes and application etc. processes, finally packs warehouse-in.
Embodiment 2, a kind of wheel hub forging method, see accompanying drawing 1, its be broadly divided into get the raw materials ready, forge and press, spinning, heat treatment and
Machine these big steps, on the basis of the aluminium alloy wheel hub of 17 inches, by that thickness is 65mm is 6061 aluminium alloy extruded
Sheet material earnestly becomes the box-shaped blank of a size of 350mm × 350mm × 65mm；
Stage of getting the raw materials ready therein is continuous way production technology in the present embodiment, and a. will use extruder extrusion after aluminium bar founding
The aluminum alloy plate materials of 350mm × 65mm；B. the aluminum alloy plate materials of extrusion is transmitted online and be heated up to 470 DEG C into preheating burner hearth, in advance
Heat treatment 40 minutes；C. the one end of the aluminum alloy plate materials out preheated from burner hearth withstands on support agency, the outlet of burner hearth
The hydraulic cutter aluminium alloy to preheat at place directly carries out online the most fervent, scale off blank by the work at himself gravity
Fall directly under with on the feeding chute of lower section.So, it is achieved the on-line continuous production effect in melting process, preheating procedure
Directly complete in the stage of getting the raw materials ready.
When step d. forges and presses, use the mode that just forging and finish-forging substep are carried out, and first will before just forging and finish-forging
Just forging mould and finish-forging die were heated to 460 DEG C in 25 minutes, and spraying lubricant on die-face, described lubrication
Agent such as synthetic waxs etc., put into the blank after earnestly in first forging mould, forge and press with the forging press of 1500 tons and forge
Just base, first base is put in finish-forging die and forges whole base by finish-forging step.
Before flow-forming step, also need to carry out step e. and dish type blank (whole base) is punched out bulging；Walk afterwards
Rapid f. spinning, puts into spinning machine by the blank of punching bulging and carries out rotary press modelling, on horizontal spinning machine, is forged by aluminium alloy wheel hub
Dabbing base tail top holds out against on spinning machine core, main shaft drive plug and aluminium alloy wheel hub forging and stamping blank to rotate, revolve simultaneously
Material is squeezed in the core of rotation by pinch roller from aluminium alloy wheel hub forging and stamping blank side, during spinning, aluminium alloy wheel hub is forged and pressed hair
Base blank heating, makes generation continuous print plastic deformation by spinning, obtains forging rotation aluminium alloy wheel hub.
Finally carrying out step g. heat treatment and machining, heat treatment is T6 heat treatment, carries out the laggard pedestrian of solution heat treatment
Man-hour effect state, machining then carries out trimming, polishes, polishes and application etc. processes, finally packs warehouse-in.
Embodiment 3, a kind of wheel hub forging method, see accompanying drawing 1, its be broadly divided into get the raw materials ready, forge and press, spinning, heat treatment and
Machine these big steps, on the basis of the aluminium alloy wheel hub of 17 inches, by that thickness is 58mm is 6061 aluminium alloy extruded
Sheet material earnestly becomes the box-shaped blank of a size of 370mm × 370mm × 58mm；
Stage of getting the raw materials ready therein is continuous way production technology in the present embodiment, and a. will use extruder extrusion after aluminium bar founding
The aluminum alloy plate materials of 370mm × 58mm；B. the aluminum alloy plate materials of extrusion is transmitted online and be heated up to 450 DEG C into preheating burner hearth, in advance
Heat treatment 40 minutes；C. the one end of the aluminum alloy plate materials out preheated from burner hearth withstands on support agency, the outlet of burner hearth
The hydraulic cutter aluminium alloy to preheat at place directly carries out online the most fervent, scale off blank by the work at himself gravity
Fall directly under with on the feeding chute of lower section.So, it is achieved the on-line continuous production effect in melting process, preheating procedure
Directly complete in the stage of getting the raw materials ready.
When step d. forges and presses, use the mode that just forging and finish-forging substep are carried out, and first will before just forging and finish-forging
Just forging mould and finish-forging die were heated to 450 DEG C in 20 minutes, and spraying lubricant on die-face, described lubrication
Agent such as synthetic waxs etc., put into the blank after earnestly in first forging mould, forge and press with the forging press of 1500 tons and forge
Just base, first base is put in finish-forging die and forges whole base by finish-forging step.
Before flow-forming step, also need to carry out step e. and dish type blank (whole base) is punched out bulging；Walk afterwards
Rapid f. spinning, puts into spinning machine by the blank of punching bulging and carries out rotary press modelling, on horizontal spinning machine, is forged by aluminium alloy wheel hub
Dabbing base tail top holds out against on spinning machine core, main shaft drive plug and aluminium alloy wheel hub forging and stamping blank to rotate, revolve simultaneously
Material is squeezed in the core of rotation by pinch roller from aluminium alloy wheel hub forging and stamping blank side, during spinning, aluminium alloy wheel hub is forged and pressed hair
Base blank heating, makes generation continuous print plastic deformation by spinning, obtains forging rotation aluminium alloy wheel hub.
Finally carrying out step g. heat treatment and machining, heat treatment is T6 heat treatment, carries out the laggard pedestrian of solution heat treatment
Man-hour effect state, machining then carries out trimming, polishes, polishes and application etc. processes, finally packs warehouse-in.
Embodiment 4, a kind of wheel hub forging method, see accompanying drawing 1, its be broadly divided into get the raw materials ready, forge and press, spinning, heat treatment and
Machine these big steps, on the basis of the aluminium alloy wheel hub of 17 inches, by that thickness is 41mm is 6061 aluminium alloy extruded
Sheet material earnestly becomes the box-shaped blank of a size of 440mm × 440mm × 41mm；
Stage of getting the raw materials ready therein is continuous way production technology in the present embodiment, and a. will use extruder extrusion after aluminium bar founding
The aluminum alloy plate materials of 440mm × 41mm；B. the aluminum alloy plate materials of extrusion is transmitted online and be heated up to 455 DEG C into preheating burner hearth, in advance
Heat treatment 35 minutes；C. the one end of the aluminum alloy plate materials out preheated from burner hearth withstands on support agency, the outlet of burner hearth
The hydraulic cutter aluminium alloy to preheat at place directly carries out online the most fervent, scale off blank by the work at himself gravity
Fall directly under with on the feeding chute of lower section.So, it is achieved the on-line continuous production effect in melting process, preheating procedure
Directly complete in the stage of getting the raw materials ready.
When step d. forges and presses, use the mode that just forging and finish-forging substep are carried out, and first will before just forging and finish-forging
Just forging mould and finish-forging die were heated to 420 DEG C in 20 minutes, and spraying lubricant on die-face, described lubrication
Agent such as synthetic waxs etc., put into the blank after earnestly in first forging mould, forge and press with the forging press of 1500 tons and forge
Just base, first base is put in finish-forging die and forges whole base by finish-forging step.
Before flow-forming step, also need to carry out step e. and dish type blank (whole base) is punched out bulging；Walk afterwards
Rapid f. spinning, puts into spinning machine by the blank of punching bulging and carries out rotary press modelling, on horizontal spinning machine, is forged by aluminium alloy wheel hub
Dabbing base tail top holds out against on spinning machine core, main shaft drive plug and aluminium alloy wheel hub forging and stamping blank to rotate, revolve simultaneously
Material is squeezed in the core of rotation by pinch roller from aluminium alloy wheel hub forging and stamping blank side, during spinning, aluminium alloy wheel hub is forged and pressed hair
Base blank heating, makes generation continuous print plastic deformation by spinning, obtains forging rotation aluminium alloy wheel hub.
Finally carrying out step g. heat treatment and machining, heat treatment is T6 heat treatment, carries out the laggard pedestrian of solution heat treatment
Man-hour effect state, machining then carries out trimming, polishes, polishes and application etc. processes, finally packs warehouse-in.
Comparative example 1
The present embodiment is on the basis of the automobile forging rotation aluminium alloy wheel hub of 17 inches:
Size according to aluminium alloy wheel hub calculates the volume of required blank, and aluminum alloy hot rolling Blanking thick plank is become round pie blank；
In particular, the 6061 aluminum alloy hot rolling Blanking thick plank that thickness is 65mm are become the circle of a size of Φ 350mm × 65mm
Pie blank；Then, blank surface is carried out and degreasing processes；Preferably, described 6061 aluminum alloy hot rolling slabs
It is to use 6061 aluminium alloy cast ingots to process through hot rolling to make；
The round pie blank obtained by above-mentioned stamping-out is put into and is heated to 470 DEG C in heating furnace and carries out the pre-heat treatment 40 minutes；
Before excellent suitability for press forming, with 25 minutes, mould is preheated to 460 DEG C, makes the upper die and lower die of mould separate, and
Spraying lubricant on die-face, described lubricant such as synthetic wax etc.；Then, by the above-mentioned round pie blank through preheating
Putting into mould, forge and press with the forging press of 1500 tons, described forging and stamping number of times is 2 times, enables aluminum alloy to wheel hub preliminary
Formed, obtain aluminium alloy wheel hub forging and stamping blank；
The above-mentioned aluminium alloy wheel hub preliminarily formed forging and stamping blank is put into horizontal spinning machine carries out mould pressing, then through overheated place
Reason and machining, obtain finished product forging rotation aluminium alloy wheel hub；In particular, on horizontal spinning machine, preliminarily form above-mentioned
Aluminium alloy wheel hub forging and stamping blank tail top holds out against on horizontal spinning machine core, main shaft drive plug and aluminium alloy wheel hub forging and stamping
Blank rotates, and material is squeezed in the core of rotation by spinning wheel from aluminium alloy wheel hub forging and stamping blank side simultaneously, will during spinning
Aluminium alloy wheel hub forging and stamping blank blank heating, to 450 DEG C, makes generation continuous print plastic deformation by spinning, makes the wheel rim of wheel hub
Mould pressing, then through Overheating Treatment and machining, obtain finished product forging rotation aluminium alloy wheel hub.
Comparative example 2
Forge on the basis of rotation aluminium alloy wheel hub by the automobiles of 17 inches:
Size according to aluminium alloy wheel hub calculates the volume of required blank, and the aluminium alloy bar of the as cast condition by Φ 250mm being is cut
It is slit into cylindric blank；Clean blank, remove greasy dirt with 35 minutes by blank heating to 460 DEG C, be incubated 70 points
Clock, forges 3 times under 1000 tons of forcing presses, by blank jumping-up to Φ 350mm, obtains round pie blank；Described as cast condition
Aluminium alloy bar be 6061 aluminium alloys, described 6061 aluminium alloys include the chemical composition of consisting of: Si: 0.4～
0.8 ；Fe: 0～0.7；Cu: 0.15～0.4；Mn: 0～0.15；Mg: 0.8～1.2；Cr: 0.04
～0.35；Zn: 0～0.25；Ti: 0～0.15；Surplus is aluminum；
Round pie blank obtained above is placed again into in heating furnace is heated to 440 DEG C～460 DEG C and carries out the pre-heat treatment
35 minutes；
Before excellent suitability for press forming, with 20 minutes, mould is preheated to 420 DEG C, then, makes the upper die and lower die of mould divide
From, and spraying lubricant on die-face, described lubricant such as synthetic wax etc.；Then, by the above-mentioned cake through preheating
Shape blank is put into mould, forges and presses with the forging press of 1500 tons, and described forging and stamping number of times is 3 times, enables aluminum alloy to wheel
Hub preliminarily forms, and obtains aluminium alloy wheel hub forging and stamping blank；
The above-mentioned aluminium alloy wheel hub preliminarily formed forging and stamping blank is put into horizontal spinning machine carries out mould pressing, then through overheated place
Reason and machining, obtain finished product forging rotation aluminium alloy wheel hub；In particular, on horizontal spinning machine, preliminarily form above-mentioned
Aluminium alloy wheel hub forging and stamping blank tail top holds out against on horizontal spinning machine core, main shaft drive plug and aluminium alloy wheel hub forging and stamping
Blank rotates, and material is squeezed in the core of rotation by spinning wheel from aluminium alloy wheel hub forging and stamping blank side simultaneously, will during spinning
Aluminium alloy wheel hub forging and stamping blank blank heating, to 400 DEG C, makes generation continuous print plastic deformation by spinning, makes the wheel rim of wheel hub
Mould pressing, then through Overheating Treatment and machining, described heat treatment preferably employs T6 heat treatment, described machining includes
Limit, polish, polish and application etc. processes, obtain finished product forging rotation aluminium alloy wheel hub.
Choose above-described embodiment and forging rotation aluminium alloy wheel hub that comparative example obtains carries out corresponding Mechanics Performance Testing, respectively
Being sampled in wheel hub different piece, wheel rim and spoke position use pole degree of drawing sample, select d3 × 30；Wheel rim position is adopted
Using lamellar tensile sample, select width b10, thickness is wheel rim original thickness, specifically according to GB/T228-2002 examination criteria
Carrying out tension test, table 1 below is the forging rotation aluminum that the preparation method of embodiment 1 to embodiment 4 and comparative example 1 and 2 obtains
The test result of alloy wheel hub, concrete result of the test is as shown in table 1 below.
Table 1:
The above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-described embodiment,
All technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that, for the art
For those of ordinary skill, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (10)
1. a wheel hub forging method, it is characterised in that comprise the following steps:
A. profile extrusion, the thickness set by extruder extrusion and the aluminum alloy plate materials of width；
B. preheat, the aluminum alloy plate materials extruded from extruder by the continuous on-line heating of firing equipment；
C. fervent, use the cutting of fervent technique to preset from the most warmed-up good aluminum alloy plate materials of firing equipment cutting into
Length forms square block blank；
D. forge, the blank after earnestly is put in mould and forges and presses so that it is form dish type；
E. dish type blank is punched out bulging；
F. the blank of punching bulging is put into spinning machine and carry out rotary press modelling；
G. the blank of rotary press modelling is carried out heat treatment and machining, obtain wheel hub finished product.
A kind of wheel hub forging method the most according to claim 1, it is characterised in that the extruding raw material in described step a
Derive from aluminium bar founding.
A kind of wheel hub forging method the most according to claim 1, it is characterised in that described step d be divided into just forging step and
Finish-forging step, the blank after earnestly put into just in forging mould and forge just base by described just section step, and described finish-forging step will
Just base is put in finish-forging die and forges whole base.
A kind of wheel hub forging method the most according to claim 1, it is characterised in that the preheating temperature of described step b is
430-470℃。
A kind of wheel hub forging method the most according to claim 1, it is characterised in that the fervent technique of described step c includes
Hydraulic cutter, support agency, described support agency is in order to withstand the aluminum alloy plate materials spread out of from firing equipment, and hydraulic cutter sets
Preheated aluminum alloy plate materials is cut off by the exit site in firing equipment.
A kind of wheel hub forging method the most according to claim 3, it is characterised in that first will just forge before just forging and finish-forging
Mould and finish-forging die are heated to 420-460 DEG C.
A kind of wheel hub forging method the most according to claim 1, it is characterised in that the heat treatment of described step g is T6 heat
Process.
A kind of wheel hub forging method the most according to claim 2, it is characterised in that described aluminium bar selected from 6XXX system or
7XXX line aluminium alloy.
A kind of wheel hub forging method the most according to claim 8, it is characterised in that in described step d, 6XXX system aluminum closes
The forging temperature of gold is 510～560 DEG C；The forging temperature of 7XXX line aluminium alloy is 420～470 DEG C.
A kind of wheel hub forging method the most according to claim 1, it is characterised in that squeezing of the extruder in described step a
Going out pressure is 700-900T.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN109236866A (en) * | 2018-09-18 | 2019-01-18 | 新昌县超海轴承有限公司 | A kind of low ovality deep ditch ball bearing ring processing technology of thin-walled |
| CN109367321A (en) * | 2018-11-22 | 2019-02-22 | 江苏珀然股份有限公司 | Commercial automobile-used reflectal wheel of two panels assembly type and preparation method thereof |
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| CN110731685A (en) * | 2019-09-05 | 2020-01-31 | 浙江炊大王炊具有限公司 | Spray plating process for pots |
| CN112439855A (en) * | 2020-11-12 | 2021-03-05 | 宝武集团马钢轨交材料科技有限公司 | Large step wheel type part forming method |
| CN113319529A (en) * | 2021-05-29 | 2021-08-31 | 黄胜 | Production and processing technology of forged hub |
| CN114619213A (en) * | 2022-05-13 | 2022-06-14 | 鼎镁新材料科技股份有限公司 | Low-stress combined light alloy hub machining method |
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| CN109367321B (en) * | 2018-11-22 | 2023-11-28 | 江苏珀然股份有限公司 | Forged aluminum alloy wheel for two-piece assembled commercial vehicle and preparation method thereof |
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| CN114619213A (en) * | 2022-05-13 | 2022-06-14 | 鼎镁新材料科技股份有限公司 | Low-stress combined light alloy hub machining method |
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