CN111283382A - Light-weight high-strength aluminum hub and manufacturing process - Google Patents
Light-weight high-strength aluminum hub and manufacturing process Download PDFInfo
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- CN111283382A CN111283382A CN201911259170.0A CN201911259170A CN111283382A CN 111283382 A CN111283382 A CN 111283382A CN 201911259170 A CN201911259170 A CN 201911259170A CN 111283382 A CN111283382 A CN 111283382A
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- strength aluminum
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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
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B3/00—Disc wheels, i.e. wheels with load-supporting disc body
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Abstract
The invention discloses a light-weight high-strength aluminum hub and a manufacturing process thereof, wherein the light-weight high-strength aluminum hub further comprises the following steps: a. aluminum plate pretreatment: rolling the aluminum plate into a cylinder, and welding the joint; b. prefabricating a half wheel: wrapping and forming a cylinder formed by rolling an aluminum plate to manufacture a half wheel; c. prefabricating a spoke plate, and punching an aluminum plate into the spoke plate in a stamping mode; d. and (4) manufacturing the hub, namely combining the two half wheels and the spoke plate and prefabricating the hub. The invention provides a light-weight high-strength aluminum hub and a manufacturing process thereof, and the light-weight high-strength aluminum hub has the advantages of simple manufacturing process, low manufacturing cost, less pollution, lower energy consumption, lighter weight of products, higher strength of the products and the like.
Description
Technical Field
The invention relates to the field of automobile hub manufacturing, in particular to a light-weight high-strength aluminum hub and a manufacturing process thereof.
Background
A hub is a cylindrical, centrally mounted metal part on a shaft that supports the tire within its inner contour. Also called rim, steel ring, wheel and tyre bell. The hub is of various kinds according to diameter, width, molding mode and material. Three manufacturing methods of aluminum alloy hubs in the current market are available, namely gravity casting, forging and low-pressure precision casting:
1. the gravity casting method comprises the steps of pouring an aluminum alloy solution into a mold by utilizing gravity, and processing and polishing the aluminum alloy solution by a lathe after forming to finish production. The manufacturing process is simple, a precise casting process is not needed, the cost is low, the production efficiency is high, but air bubbles (sand holes) are easily generated, the density is uneven, and the surface smoothness is not enough. The hub produced by the method is matched with a corresponding vehicle model, and is mainly a vehicle model produced in an early stage, and a new vehicle model is mostly replaced by a new hub;
2. the forging method, the monoblock aluminium ingot is directly extruded and formed on the mould by a kiloton press, the advantage is that the density is uniform, the surface is smooth and delicate, the hub wall is thin and light, the material strength is highest, and is higher than the casting method by more than three times, but because of needing more fine production equipment, the yield is only five to six times, the manufacturing cost is higher;
3. the low-pressure precision casting method is used for precision casting under the low pressure of 0.1Mpa, the casting mode has good formability, clear outline, uniform density and smooth surface, can achieve high strength, light weight and cost control, has the yield of more than nine percent, and is the mainstream manufacturing method of the high-quality aluminum alloy hub.
However, in casting, in order to ensure that the high-temperature molten metal can flow to each part of the casting mold, the product cannot be made too thin, otherwise, the product quality cannot be ensured, and the yield is reduced. Therefore, the thickness of the cast hub is relatively thick, and the hub is not light.
Chinese patent application publication No. CN107891137A, published as 2018, 04, month 10, entitled "a method for manufacturing a wheel hub", discloses a method for manufacturing a wheel hub, including the steps of: heating the blank, preheating the aluminum blank, maintaining for 0.5-1 hour, and continuously heating to melt the blank into molten metal solution; preheating the die, wherein the preheating temperature is 350-420 ℃, and keeping for 0.5-1.5 hours; injecting an aluminum metal solution into the preheated die, and carrying out die casting treatment on the die by using a casting press for 50-60 seconds; spraying cooling water to the die for cooling, wherein the cooling time is 20-40S; demoulding the hub to enable the hub casting to be separated from the lower die along with the upper die, and then separating the hub casting from the upper die by using an ejection mechanism; and after the cold hub casting is naturally cooled, machining. However, this method still uses a casting method to manufacture the hub, and the above problems still remain.
Disclosure of Invention
In order to overcome the defects that the strength of a wheel hub manufactured by adopting a casting process is not high enough, the light-weight degree of a product is not high, and the energy consumption is high and the pollution is high in the manufacturing process in the prior art, the invention provides the manufacturing process of the light-weight high-strength aluminum wheel hub, which has the advantages of simple manufacturing process, low manufacturing cost, less pollution, lower energy consumption, lighter weight of the product, higher strength of the product and the like.
The second object of the present invention is: the light-weight high-strength aluminum hub has the advantages of simple structure, lighter weight, higher strength and the like.
In order to achieve the purpose, the invention adopts the following technical scheme:
a manufacturing process of a lightweight high-strength aluminum hub comprises the following steps:
a. aluminum plate pretreatment: rolling the aluminum plate into a cylinder, and welding the joint;
b. prefabricating a half wheel: wrapping and forming a cylinder formed by rolling an aluminum plate to manufacture a half wheel;
c. prefabricating a spoke plate, and punching an aluminum plate into the spoke plate in a stamping mode;
d. and (4) manufacturing the hub, namely combining the two half wheels and the spoke plate and prefabricating the hub.
Through implementing above-mentioned technical scheme, can adopt aluminum plate forming process to make high strength wheel hub, and manufacturing process is simple, and raw and other materials acquire easily, and raw and other materials aluminum plate's quality is easy control. Compared with an aluminum hub casting process, the method has the advantages of less pollution and lower energy consumption; the product is not limited by the thickness during casting, can be lighter, and is lighter by 35% compared with the traditional cast aluminum wheel; compared with the cast product with the same specification, the strength of the product is higher by more than 50 percent.
Preferably, the step c may be provided before the step a or the step b. The prefabrication sequence of the web plate and the half wheel can be interchanged, and the manufacturing of the product is not influenced.
Preferably, the welding is performed by a friction stir welding process. The stirring friction welding process has the advantages that the residual stress is low, and a welding workpiece is not easy to deform; the operation process conveniently realizes mechanization, automation, and equipment is simple, and the energy consumption is low, and the efficiency is high, and is low to the operation environment requirement: the material sensitive to welding and hot cracking is suitable for welding dissimilar materials; the welding process has the advantages of safety, no pollution, no smoke, no radiation and the like, and is suitable for welding the aluminum wheel hub.
The utility model provides a light-weight type high strength aluminium matter wheel hub, includes radials and two half wheels, and two half wheels symmetry set up in radials both sides, and two half wheels and radials welded fastening.
Among the above-mentioned technical scheme, aluminium matter wheel hub simple structure adopts the welding to fix two half wheels and radials, has guaranteed the intensity of product, can realize the lightweight of product simultaneously, and is lighter 35% than traditional casting aluminium wheel weight.
Preferably, the radials are provided with hollow patterns. The light weight of the product can be realized, and the product can be more attractive.
Preferably, the side walls of the half wheels are folded outwards to form folded parts, and the two half wheel folded parts enclose a tire accommodating area. The tire receiving area is used for fixing a tire.
Preferably, the edge of the side of the half wheel far away from the wheel disk is bent towards the tire accommodating area to form an edge fixing structure. The edge fixing structure can increase the edge strength and fix the tire.
Preferably, the material of the web plate and the half wheel is aluminum alloy. The aluminum alloy has light weight, high strength and easy forming, and is convenient for realizing light weight of products.
The invention has the beneficial effects that: (1) the manufacturing process is simple, the manufacturing cost is low, and raw materials are easy to obtain; (2) compared with an aluminum hub casting process, the method has the advantages of less pollution and lower energy consumption; (3) the product can be lighter, and is 35% lighter than the traditional cast aluminum wheel; (4) compared with the cast product with the same specification, the strength of the product is higher by more than 50 percent.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure of the web of the present invention.
In the figure: the wheel disc comprises a wheel disc 1, hollow patterns 1.1, half wheels 2, turnover parts 2.1, a tire accommodating area 2.2 and an edge fixing structure 2.3.
Detailed Description
The invention is further described with reference to the following figures and specific embodiments.
Example 1:
a manufacturing process of a lightweight high-strength aluminum hub comprises the following steps:
a. aluminum plate pretreatment: rolling the aluminum plate into a cylinder, and welding the joint;
b. prefabricating a half wheel: wrapping and forming a cylinder formed by rolling an aluminum plate to manufacture a half wheel;
c. prefabricating a spoke plate, and punching an aluminum plate into the spoke plate in a stamping mode;
d. and (4) manufacturing the hub, namely combining the two half wheels and the spoke plate and prefabricating the hub.
The welding adopts a stirring friction welding process.
Through implementing above-mentioned technical scheme, can adopt aluminum plate forming process to make high strength wheel hub, and manufacturing process is simple, and raw and other materials acquire easily, and raw and other materials aluminum plate's quality is easy control. Compared with an aluminum hub casting process, the method has the advantages of less pollution and lower energy consumption; the product is not limited by the thickness during casting, can be lighter, and is lighter by 35% compared with the traditional cast aluminum wheel; compared with the cast product with the same specification, the strength of the product is higher by more than 50 percent.
Example 2:
as shown in fig. 1, the lightweight high-strength aluminum hub comprises a web 1 and two half wheels 2, wherein the web 1 and the half wheels 2 are made of aluminum alloy; the two half wheels 2 are symmetrically arranged on two sides of the spoke plate 1, and the two half wheels 2 are welded and fixed with the spoke plate 1; as shown in fig. 2, a hollow pattern 1.1 is arranged on the web 1; the side walls of the half wheels 2 are turned outwards to form folded parts 2.1, and the folded parts 2.1 of the two half wheels 2 enclose a tire accommodating area 2.2; the edge of the side of the half wheel 2 remote from the web 1 is bent towards the tyre receiving area 2.2 to form an edge fixing structure 2.3.
Among the above-mentioned technical scheme, aluminium matter wheel hub simple structure adopts the welding to fix two half wheel 2 and radials 1, has guaranteed the intensity of product, and the product is not restricted by the thickness when casting simultaneously, can be more lightweight. The hollow pattern 1.1 can make the product lighter, and can make the product more pleasing to the eye simultaneously. The aluminum alloy has light weight, high strength and easy forming, and is convenient for realizing light weight of products.
The invention has the beneficial effects that: the manufacturing process is simple, the manufacturing cost is low, and raw materials are easy to obtain; compared with an aluminum hub casting process, the method has the advantages of less pollution and lower energy consumption; the product can be lighter, and is 35% lighter than the traditional cast aluminum wheel; compared with the cast product with the same specification, the strength of the product is higher by more than 50 percent.
Claims (7)
1. A manufacturing process of a lightweight high-strength aluminum hub is characterized by comprising the following steps:
a. aluminum plate pretreatment: rolling the aluminum plate into a cylinder, and welding the joint;
b. prefabricating a half wheel: wrapping and forming a cylinder formed by rolling an aluminum plate to manufacture a half wheel;
c. prefabricating a spoke plate, and punching an aluminum plate into the spoke plate in a stamping mode;
d. and (4) manufacturing the hub, namely combining the two half wheels and the spoke plate and prefabricating the hub.
2. A process for manufacturing a lightweight high strength aluminum hub as claimed in claim 1, wherein step c is performed before step a or step b.
3. A process for manufacturing a lightweight high strength aluminum wheel hub as claimed in claim 1, wherein said welding is a friction stir welding process.
4. The light-weight high-strength aluminum hub is characterized by comprising a radial plate and two half wheels, wherein the two half wheels are symmetrically arranged on two sides of the radial plate and are welded and fixed with the radial plate.
5. A lightweight high strength aluminum hub as set forth in claim 4 wherein said webs are provided with a pattern of openings.
6. A lightweight high strength aluminum wheel hub as set forth in claim 4 wherein said wheel halves are folded outwardly to form turnups enclosing the tire receiving area.
7. A lightweight high strength aluminum hub as claimed in claim 6 wherein the edge of the wheel half on the side away from the web is bent towards the tire receiving area to form an edge securement structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911259170.0A CN111283382A (en) | 2019-12-10 | 2019-12-10 | Light-weight high-strength aluminum hub and manufacturing process |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911259170.0A CN111283382A (en) | 2019-12-10 | 2019-12-10 | Light-weight high-strength aluminum hub and manufacturing process |
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| CN111283382A true CN111283382A (en) | 2020-06-16 |
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| CN201911259170.0A Pending CN111283382A (en) | 2019-12-10 | 2019-12-10 | Light-weight high-strength aluminum hub and manufacturing process |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1150537A (en) * | 1967-02-24 | 1969-04-30 | Michelin & Cie | Improvements in and relating to Vehicle Wheels |
| CN1887607A (en) * | 2006-07-07 | 2007-01-03 | 徐嘉 | Composite aluminium-iron felly for vacuum tyre and its making process |
| CN101722401A (en) * | 2008-10-22 | 2010-06-09 | 上海保隆汽车科技股份有限公司 | Process for manufacturing magnesium alloy wheel and process for manufacturing wheel rim of magnesium alloy wheel |
| US20100270851A1 (en) * | 2008-08-13 | 2010-10-28 | Douglas Technologies Group, Inc. | Vehicle wheel with rock guard |
| CN102294575A (en) * | 2011-08-19 | 2011-12-28 | 苏竞 | Manufacturing method of light vehicle aluminium alloy hubs |
-
2019
- 2019-12-10 CN CN201911259170.0A patent/CN111283382A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1150537A (en) * | 1967-02-24 | 1969-04-30 | Michelin & Cie | Improvements in and relating to Vehicle Wheels |
| CN1887607A (en) * | 2006-07-07 | 2007-01-03 | 徐嘉 | Composite aluminium-iron felly for vacuum tyre and its making process |
| US20100270851A1 (en) * | 2008-08-13 | 2010-10-28 | Douglas Technologies Group, Inc. | Vehicle wheel with rock guard |
| CN101722401A (en) * | 2008-10-22 | 2010-06-09 | 上海保隆汽车科技股份有限公司 | Process for manufacturing magnesium alloy wheel and process for manufacturing wheel rim of magnesium alloy wheel |
| CN102294575A (en) * | 2011-08-19 | 2011-12-28 | 苏竞 | Manufacturing method of light vehicle aluminium alloy hubs |
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Effective date of registration: 20230614 Address after: 317511 southeast industrial cluster, Songmen Town, Wenling City, Taizhou City, Zhejiang Province Applicant after: ZHEJIANG FENGCHI MECHANICAL Co.,Ltd. Address before: No.1042, Jiulong Avenue, Wenling, Taizhou, Zhejiang 317500 Applicant before: Wang Zhengqing |
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