CN105269258A - Manufacturing method for forging aluminum alloy hub - Google Patents
Manufacturing method for forging aluminum alloy hub Download PDFInfo
- Publication number
- CN105269258A CN105269258A CN201510739083.0A CN201510739083A CN105269258A CN 105269258 A CN105269258 A CN 105269258A CN 201510739083 A CN201510739083 A CN 201510739083A CN 105269258 A CN105269258 A CN 105269258A
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- China
- Prior art keywords
- forging
- blank
- wheel hub
- manufacture method
- aluminum alloy
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B27/00—Hubs
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
The invention discloses a manufacturing method for forging an aluminum alloy hub. The method comprises the following steps: (1) the volume of a needed blank is calculated according to an aluminum hub part drawing; and an aluminum alloy hot-rolled thick plate is sawed to a square or circular blank; (2) the blank is put in a heating furnace for preheating to the forging temperature; (3) the preheated blank is forged to a disc shape by open type die forging; (4) the disc-shaped extrusion blank is punched and expanded; (5) the punched and expanded blank is put in a spanning machine for spinning formation; and (6) the spun blank is thermally treated and machined to obtain a finished hub. The method has such advantages as small needed forging machine tonnage, simple process, few procedures, high production efficiency, less needed equipment, high material utilization rate, low cost and large-batch production.
Description
Technical field
The present invention relates to a kind of manufacture method of wheel hub, be specifically related to a kind of manufacture method of reflectal wheel hub.
Background technology
World Auto Industry just towards light weight, at a high speed, safe, energy-conservation, the comfortable future development light with environmental pollution, therefore aluminum alloy spare part consumption is in the car increasing.Wheel hub, as one of vitals in running car system, is also a kind ofly require higher security personnel's part, and 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 global aluminium alloy automobile hub output reached 7.6%.As can be seen here, along with the demand expanding day of automotive light weight technology, aluminium alloy wheel hub just progressively replaces traditional steel wheel hub and is greatly expanded in Hyundai Motor manufacture.
Aluminium alloy wheel hub adopts the method for casting or die cast to produce usually, conventional cast moulding method, no matter be counter-pressure casting, low pressure casting or gravitational casting, all because the high velocity turbulent flow of its aluminium alloy filling die mould moves, the gas in mold cavity cannot be drained, and cause product blank institutional framework not fine and close, easy generation is loosened, the casting flaws such as folder hole, its manufacturing cost is high, the energy and raw materials consumption larger.The mechanical property of product and the surface quality of foundry goods can not be fully up to expectations.
Conventional reflectal wheel hub with columned as-cast aluminum alloy for raw material manufacture forms.The casting flaw such as coarse grains and pore, shrinkage cavity, loose, micro-crack is organized because as-cast aluminum alloy can exist usually; thus before excellent suitability for press forming; usually jumping-up operation can be carried out; as-cast structure is made to change fibrous Deformation structure into; eliminate the microdefect that metal inside exists; improve the moulding of metal and compactness, for follow-up forging and molding provides suitable blank.But its complex procedures, energy consumption are large, forging cost is high.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of manufacture method of reflectal wheel hub, and it can adopt the forging press of low tonnage to carry out open die forging, impressing forging to aluminium alloy thick plate blank.
For solving the problems of the technologies described above, the technical solution of the manufacture method of reflectal wheel hub of the present invention is comprise the following steps:
Step one, calculates the volume of required blank, the sawing of aluminum alloy hot rolling slab is become square piece shape or disc-shaped blank according to aluminium wheels part drawing;
Aluminum alloy hot rolling slab adopts ingot casting to make through hot rolling process.
Aluminum alloy hot rolling slab is selected from 6XXX system or 7XXX line aluminium alloy.
The thickness of aluminum alloy hot rolling slab is 70 ~ 200mm.
Step 2, puts into blank in heating furnace and is preheating to forging temperature;
Wherein, the forging temperature of 6XXX line aluminium alloy is 510 ~ 560 DEG C; The forging temperature of 7XXX line aluminium alloy is 420 ~ 470 DEG C.
Step 3, adopts open die forging, impressing forging to forge and press preheated blank, makes it become dish type;
The number of times of forging and stamping is once.
Forging and stamping are open die forging, impressing forging.
The forging press pressure of forging and stamping is 15 ~ 60MN; The pressure of preferred forging press is 20 ~ 40MN.
Step 4, carries out punching bulging to dish type extrusion billet;
Step 5, puts into spinning machine by the blank of punching bulging and carries out mould pressing;
Step 6, heat-treats the blank of mould pressing and machined, obtains wheel hub finished product.
The technique effect that the present invention can reach is:
The invention solves the problems such as required forging press tonnage in conventional reflectal wheel hub technique is large, complex process, energy consumption are high.The aluminium alloy automobile hub adopting the present invention to produce, can not only reach that finished product rate is high, stable mechanical property, but also obviously can reduce energy-output ratio, enhances productivity.
The present invention has the advantages such as required forging press tonnage is little, technique is simple, operation is few, production efficiency is high, equipment needed thereby is few, stock utilization is high, cost is low, applicable production in enormous quantities.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation:
Fig. 1 is the schematic diagram of aluminum alloy hot rolling slab sawing square piece in forming process of the present invention;
Fig. 2 is the schematic diagram of forging mold and rough forging in forming process of the present invention;
Fig. 3 is the blank schematic diagram in forming process of the present invention after aluminium alloy forging and stamping blank punching bulging;
Fig. 4 is the spinning blank schematic diagram in forming process of the present invention after aluminium alloy punching bulging blank spinning.
Detailed description of the invention
The manufacture method of reflectal wheel hub of the present invention, comprises the following steps:
Step one, calculates the volume of required blank, the sawing of aluminum alloy hot rolling slab is become square piece shape or disc-shaped blank according to aluminium wheels part drawing;
Described aluminum alloy hot rolling slab adopts ingot casting to make through hot rolling process;
Adopt the process of pole jumping-up preform relative to routine, The present invention reduces jumping-up, rough forge production process, reduce energy consumption, improve production efficiency; Manufacture disk forging blank relative to employing Blanking thick plank, slab sawing square piece blank material utilization rate is high, and sawing fineness is high, effectively can improve lumber recovery and the yield rate of subsequent product.
Described aluminum alloy hot rolling slab is selected from 6XXX system or 7XXX line aluminium alloy;
6XXX, 7XXX aluminium alloy that the present invention adopts is heat treatment type alloy, after shaping is revolved in aluminium alloy wheel hub forging, can be obtained the aluminium alloy wheel hub product of high-strength and high-ductility by heat treatment.
The thickness of described aluminum alloy hot rolling slab is 70 ~ 200mm;
Step 2, puts into blank in heating furnace and is preheating to forging temperature;
The forging temperature of 6XXX line aluminium alloy is 510 ~ 560 DEG C;
The forging temperature of 7XXX line aluminium alloy is 420 ~ 470 DEG C;
The present invention adopts higher initial forging temperature, can improve the mobility in thick aluminum alloy plate square piece forging process.
Step 3, adopts open die forging, impressing forging to forge and press preheated blank, makes metal be full of most of die cavity, make it become dish type;
The number of times of described forging and stamping is once;
The present invention adopts a forging and molding, not only can enhance productivity, and also can be that aluminium alloy wheel hub obtains evenly tiny crystal grain simultaneously.
The forging press pressure of described forging and stamping is 15 ~ 60MN, and the pressure of preferred forging press is 20 ~ 40MN.
Because the present invention adopts open die forging, impressing forging, open die forging, impressing forging mould is not totally enclosed, major part metal is full of impression in the mode of Upsetting, the interface of mould and metal material do not have extra shearing, thus the distortion frictional resistance that in forging and stamping process, metal flow is subject to is less than traditional closed die forging, thus forging and stamping needed for pressure lower.But, when pressure is less than 15MN, required hypotony, blank is difficult to be pressed into required form; And when pressure is greater than 60MN, though blank can be compressing, needed for establish pressure large, device fabrication cost is high.Therefore the pressure of the preferred forging press of the present invention is 15 ~ 60MN, and further preferably the pressure of forging press is 20 ~ 40MN.
Step 4, carries out punching bulging to dish type extrusion billet;
Step 5, puts into spinning machine by the blank of punching bulging and carries out mould pressing;
Step 6, heat-treats the blank of mould pressing and machined, obtains wheel hub finished product.
Embodiment
Provide below a wheel hub specification be 22.5 × 9 forging revolve the manufacture method embodiment of aluminium alloy wheel hub:
By the slab square piece that the thick 7B04 aluminum alloy hot rolling band sawing for 140mm cun is 140 × 340 × 340, as shown in Figure 1;
Slab square piece is preheating to 430 ~ 450 DEG C; Before forging and stamping work, with 20 minutes by mould and die preheating to 400 DEG C, upper die and lower die are separated, spraying lubricant on die-face, puts into mould by the slab square piece through high temperature preheating, extrudes with 20MN forging press, make forging and stamping blank, as shown in Figure 2;
Forging and stamping blank is delivered in punching expanding die and carries out punching bulging, as shown in Figure 3;
Again punching bulging blank is delivered to and carry out spinning on wheel hub spinning machine, manufacture wheel hub spinning blank, as shown in Figure 4;
Again spinning blank is carried out T73 heat treatment, heat treatment is complete carries out machined and polishing afterwards to heat treatment blank, can become forging and revolve aluminium alloy wheel hub product.
Specific embodiment described in the present invention is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.
Claims (9)
1. a manufacture method for reflectal wheel hub, is characterized in that, comprises the following steps:
Step one, calculates the volume of required blank, the sawing of aluminum alloy hot rolling slab is become square piece shape or disc-shaped blank according to aluminium wheels part drawing;
Step 2, puts into blank in heating furnace and is preheating to forging temperature;
Step 3, adopts open die forging, impressing forging to forge and press preheated blank, makes it become dish type;
Step 4, carries out punching bulging to dish type extrusion billet;
Step 5, puts into spinning machine by the blank of punching bulging and carries out mould pressing;
Step 6, heat-treats the blank of mould pressing and machined, obtains wheel hub finished product.
2. the manufacture method of reflectal wheel hub according to claim 1, is characterized in that, the aluminum alloy hot rolling slab in described step one adopts ingot casting to make through hot rolling process.
3. the manufacture method of reflectal wheel hub according to claim 1, is characterized in that, the aluminum alloy hot rolling slab in described step one is selected from 6XXX system or 7XXX line aluminium alloy.
4. the manufacture method of reflectal wheel hub according to claim 3, is characterized in that, in described step 2, the forging temperature of 6XXX line aluminium alloy is 510 ~ 560 DEG C; The forging temperature of 7XXX line aluminium alloy is 420 ~ 470 DEG C.
5. the manufacture method of reflectal wheel hub according to claim 1, is characterized in that, the thickness of the aluminum alloy hot rolling slab in described step one is 70 ~ 200mm.
6. the manufacture method of reflectal wheel hub according to claim 1, is characterized in that, the number of times forged and pressed in described step 3 is once.
7. the manufacture method of reflectal wheel hub according to claim 1, is characterized in that, the forging and stamping in described step 3 are open die forging, impressing forging.
8. the manufacture method of reflectal wheel hub according to claim 1, is characterized in that, the forging press pressure forged and pressed in described step 3 is 15 ~ 60MN.
9. the manufacture method of reflectal wheel hub according to claim 1, is characterized in that, the pressure of the forging press forged and pressed in described step 3 is 20 ~ 40MN.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510739083.0A CN105269258A (en) | 2015-11-04 | 2015-11-04 | Manufacturing method for forging aluminum alloy hub |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510739083.0A CN105269258A (en) | 2015-11-04 | 2015-11-04 | Manufacturing method for forging aluminum alloy hub |
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| CN105269258A true CN105269258A (en) | 2016-01-27 |
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| CN201510739083.0A Pending CN105269258A (en) | 2015-11-04 | 2015-11-04 | Manufacturing method for forging aluminum alloy hub |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106216952A (en) * | 2016-08-06 | 2016-12-14 | 宁波路威汽车轮业有限公司 | A kind of wheel hub forging method |
| CN108057994A (en) * | 2017-12-12 | 2018-05-22 | 江苏珀然股份有限公司 | A kind of forging method of wheel hub |
| CN113649578A (en) * | 2019-10-23 | 2021-11-16 | 璞奔(常州)新材料科技有限公司 | Hub manufacturing system and hub carrier |
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| CN1864915A (en) * | 2006-06-13 | 2006-11-22 | 中北大学 | A labor-saving automobile hub forming method and device |
| CN101653901A (en) * | 2009-09-15 | 2010-02-24 | 丁松伟 | Swaging manufacturing method of light aluminum alloy rim |
| CN102814621A (en) * | 2011-06-07 | 2012-12-12 | 韦光东 | Automobile hub isothermal forging and spinning forming process |
| CN103817495A (en) * | 2014-03-05 | 2014-05-28 | 浙江巨科实业有限公司 | Manufacturing method of aluminum alloy hub |
| CN103990947A (en) * | 2014-06-13 | 2014-08-20 | 浙江巨科实业有限公司 | Manufacturing method for Al-Mg alloy hub |
| CN104015011A (en) * | 2014-06-13 | 2014-09-03 | 浙江巨科实业有限公司 | Manufacturing method of Al-Mg-Si alloy hub |
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2015
- 2015-11-04 CN CN201510739083.0A patent/CN105269258A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1864915A (en) * | 2006-06-13 | 2006-11-22 | 中北大学 | A labor-saving automobile hub forming method and device |
| CN101653901A (en) * | 2009-09-15 | 2010-02-24 | 丁松伟 | Swaging manufacturing method of light aluminum alloy rim |
| CN102814621A (en) * | 2011-06-07 | 2012-12-12 | 韦光东 | Automobile hub isothermal forging and spinning forming process |
| CN103817495A (en) * | 2014-03-05 | 2014-05-28 | 浙江巨科实业有限公司 | Manufacturing method of aluminum alloy hub |
| CN103990947A (en) * | 2014-06-13 | 2014-08-20 | 浙江巨科实业有限公司 | Manufacturing method for Al-Mg alloy hub |
| CN104015011A (en) * | 2014-06-13 | 2014-09-03 | 浙江巨科实业有限公司 | Manufacturing method of Al-Mg-Si alloy hub |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106216952A (en) * | 2016-08-06 | 2016-12-14 | 宁波路威汽车轮业有限公司 | A kind of wheel hub forging method |
| CN108057994A (en) * | 2017-12-12 | 2018-05-22 | 江苏珀然股份有限公司 | A kind of forging method of wheel hub |
| CN113649578A (en) * | 2019-10-23 | 2021-11-16 | 璞奔(常州)新材料科技有限公司 | Hub manufacturing system and hub carrier |
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Application publication date: 20160127 |