CN114179563A - Aluminum alloy wheel Udermut weight reduction structure and strengthening processing method - Google Patents
Aluminum alloy wheel Udermut weight reduction structure and strengthening processing method Download PDFInfo
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- CN114179563A CN114179563A CN202111592729.9A CN202111592729A CN114179563A CN 114179563 A CN114179563 A CN 114179563A CN 202111592729 A CN202111592729 A CN 202111592729A CN 114179563 A CN114179563 A CN 114179563A
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- weight
- wheel
- reducing structure
- weight reduction
- udermut
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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
- B60B3/001—Lightweight wheels, e.g. for strollers or toys
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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
- B60B21/00—Rims
- B60B21/02—Rims characterised by transverse section
- B60B21/025—Rims characterised by transverse section the transverse section being hollow
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
Abstract
The invention relates to a motor vehicle aluminum alloy wheel with an undercut weight-reducing structure on the inner side of a wheel rim and a processing and reinforcing method thereof. Compared with the traditional spoke weight reduction structure, the Udermut weight reduction structure has the advantages that the processing technology is more advanced, and the weight reduction is more remarkable. Moreover, the fatigue life of the Udercut weight-reducing structure wheel is superior to that of a spoke weight-reducing wheel through test verification. The machining method is to increase a special groove cutter and obtain the Udermut weight-reducing structure by adopting special machining technological parameters. A spinning method is added, and a roller spinning process is adopted, so that the strength and hardness of the Udercut weight reduction structure are improved, and perfect balance between weight reduction and mechanical strength is achieved. Compared with the traditional spoke weight reduction structure, the Udermut weight reduction structure has the advantages that the processing technology is more advanced, and the weight reduction is more remarkable. Moreover, the fatigue life of the Udercut weight-reducing structure wheel is superior to that of a spoke weight-reducing wheel through test verification.
Description
Technical Field
The invention relates to the technical field of automobile parts, in particular to an aluminum alloy wheel Udermut weight reduction structure and a strengthening processing method.
Background
The aluminum alloy wheel is popular with more and more private car owners due to the characteristics of elegant appearance, safety, comfort and the like. The aluminum alloy wheel has light weight and high manufacturing precision, so the aluminum alloy wheel has small deformation and small inertia resistance during high-speed rotation. The aluminum alloy wheel has the metal characteristics of absorbing vibration and rebounding force, and is machined by a numerical control machine tool to have high dimensional accuracy, high roundness, small bounce and good balance, so that the automobile runs stably and comfortably.
When the aluminum alloy wheel of the motor vehicle is subjected to modeling design, the design result of the front wheel disc may have a certain distance from the optimal weight result. When the face disc covers an excessively large area, the overall wheel has an excessively large disc weight, which offsets the advantage of the aluminum alloy wheel in terms of weight reduction. To overcome this problem, weight reduction structures are typically provided on the back of the spokes of the wheel disc to reduce the overall weight of the wheel disc. However, the weight reduction structure is separately provided, and the weight reduction effect on the aluminum alloy wheel is still poor.
Therefore, the aluminum alloy wheel has the advantages that the weight reduction effect is improved by adding an undercut weight reduction structure on the inner side of the wheel rim.
Meanwhile, on the premise of ensuring the strength of the aluminum alloy wheel, a wheel strengthening process is added, the surface roughness of an undersut weight reducing structure is optimized, machining knife lines of the undersut weight reducing structure are reduced, positive pressure is formed on aluminum alloy surface crystal grains under the action of spinning, the surface hardness, the roughness and the fatigue life of the undersut weight reducing structure wheel are improved under the condition of light weight as much as possible, and perfect balance between weight reduction and mechanical strength is achieved.
Compared with the traditional spoke weight reduction structure, the Udermut weight reduction structure has the advantages that the processing technology is more advanced, and the weight reduction is more remarkable. Moreover, the fatigue life of the Udercut weight-reducing structure wheel is superior to that of a spoke weight-reducing wheel through test verification.
Disclosure of Invention
It is therefore an object of the present invention to provide a wheel including an undercut weight reduction structure inboard of the rim.
In one aspect of the invention, an aluminum alloy wheel of a motor vehicle with an undercut weight-reducing structure and a processing method thereof are provided.
The wheel comprises a wheel disc and a rim, wherein the wheel disc comprises a flange plate, a peripheral part of the flange plate and a spoke;
the outer side of the flange plate is connected to the spokes and the peripheral part of the flange plate, and the peripheral part of the flange plate is positioned between the adjacent spokes;
the rim comprises a valve hole;
4 or 5 or 6 bolt holes are uniformly distributed in the flange plate;
one end of the spoke is connected to the outer side of the flange plate, the other end of the spoke is connected to the rim, and the spoke is in a trapezoid or rectangular shape;
the width of the peripheral part of the flange plate along the radial direction of the wheel is 230-280mm, and the thickness of the peripheral part of the flange plate is 5-10 mm;
the side edge of the adjacent spoke and the rim enclose a round-corner triangle or trapezoid window;
in the Udercut weight reducing structure of the wheel, the Udercut weight reducing structure is in a deep arc shape, the depth of an arc groove is 0-20mm, the two ends of the Udercut weight reducing structure are respectively 7-10 mm away from the edge of a spoke, the width of the Udercut weight reducing structure is 3-10 mm, and the length of the Udercut weight reducing structure is 0-20 mm;
in a preferred aspect of the invention, the method for machining the Udermut weight-reducing structure adopts a specially-machined groove cutter, and the arc angle of the groove cutter is R3 mm-R10 mm.
In a preferred aspect of the invention, the method for machining the Udermut weight-reducing structure adopts a specially-machined groove cutter, and the arc angle of the groove cutter is R3 mm-R10 mm.
In a preferred aspect of the invention, the method for machining the Udermut weight-reducing structure adopts a specially machined groove cutter, and the feed rate of the groove cutter is 0.3-0.5 mm/r.
In a preferred aspect of the invention, the method for machining the Udermut weight-reducing structure adopts a specially machined groove cutter, and the cutting amount (0.5-3.5) mm of the groove cutter is adopted.
In a preferred aspect of the invention, the spindle rotating speed (1200-.
In a preferred aspect of the invention, the method for machining the Udermut weight-reducing structure adopts a spinning strengthening process, and the arc angle of a spinning roller is R3 mm-R10 mm.
In the preferable aspect of the invention, the method for processing the Udermut weight-reducing structure adopts a spinning strengthening process, and the cutting depth of a spinning roller is (0.1-1.0) mm.
In a preferable aspect of the invention, the method for machining the Udermut weight-reducing structure adopts a spinning strengthening process, and the feeding rate of a spinning roller is (0.1-1.0) mm/r.
In a preferred aspect of the invention, the rotary speed (300-.
The underservt weight reduction structure on the inner side of the wheel outer rim of the wheel in a specific shape is designed according to a specific front modeling of the wheel, and the size of the underservt weight reduction structure is selected, so that the weight of the wheel is reduced. And the wheel after weight reduction still has excellent mechanical properties, meets the standards of the American wheels SAE J175 and SAE J328-2005, namely the requirements of 13-degree impact strength, radial fatigue and bending fatigue performance, and can also meet the requirements of national standards GB/T5334-.
Drawings
Embodiments of the invention are described in detail below with reference to the attached drawing figures, wherein:
FIG. 1: an undercut weight reduction structure schematic diagram of a wheel of embodiment 1 of the invention;
FIG. 2: a schematic view of a special groove cutter for a wheel of embodiment 1 of the present invention;
FIG. 3: the spinning schematic diagram of the special roller of the wheel of the embodiment 1 of the invention;
in the figure: the wheel comprises 1-wheels without an Udercut weight reducing structure, 2-wheels with the Udercut weight reducing structure, 3-groove tool handles, 4-groove tools, 5-spinning rollers and 6-spinning tool handles.
Detailed Description
Example 1
In the embodiment, the aluminum alloy wheel 2 of the motor vehicle with the undersut weight-reducing structure on the inner side of the wheel rim is provided, the wheel comprises a wheel disc and a wheel rim, and the wheel disc comprises a flange plate, a flange plate peripheral part and a spoke; the outer side of the flange plate is connected to the spokes and the peripheral part of the flange plate, and the peripheral part of the flange plate is positioned between the adjacent spokes; one end of the spoke is connected to the outer side of the flange plate, the other end of the spoke is connected to the rim, and the spoke is in a trapezoid or rectangular shape; the width of the peripheral part of the flange along the radial direction of the wheel is 230 mm and 280mm, and the thickness of the peripheral part of the flange is 5-10 mm. The side edges of adjacent spokes and the rim enclose a rounded triangle or trapezoid window. The inner side of the wheel rim of the wheel comprises an undercut weight reducing structure, the arc groove depth of the undercut weight reducing structure of the wheel is 0-20mm, the two ends of the undercut weight reducing structure are 7-10 mm away from the edge of a spoke, the width of the undercut weight reducing structure is 3-10 mm, the length of the undercut weight reducing structure is 0-20mm, and the arc angle of the undercut weight reducing structure is R3 mm-R10 mm.
Tests prove that the weight reducing structure of Udermut is not 11.0kg, the weight is 10.0 kg after weight reduction, and the weight reducing effect is 9.1%.
Example 2
For the motor vehicle wheel 2 in the embodiment 1, a special processing method is needed, and the wheel 1 without the undersut weight-reducing structure is processed into the wheel 2 with the undersut weight-reducing structure.
In the embodiment, a special groove machining tool 4 is adopted, and the arc angle of the groove machining tool 4 is R3mm to R10 mm.
In the embodiment, a special groove machining tool 4 is adopted, and the feed rate of the groove machining tool 4 is (0.1-1.0) mm/r.
In the embodiment, a special groove machining tool 4 is adopted, and the cutting amount of the groove machining tool 4 is (0.5-3.5) mm.
In the embodiment, a numerical control processing machine tool is adopted, and the rotating speed of a main shaft is (1200-2000) r/min.
In the embodiment, the wheel 1 without the underscut weight-reducing structure is arranged on a main shaft of a numerical control machine tool, and is processed according to the processing technology to obtain the wheel 2 with the underscut weight-reducing structure.
Example 3
For the motor vehicle wheel 2 of the embodiment 2, a special spinning strengthening processing method is needed, and the strength and the hardness of the wheel 2 with the Udermut weight-reducing structure are improved.
In the embodiment, a special spinning roller 5 is adopted, and the arc angle of the spinning roller 5 is R3 mm-R10 mm.
In the embodiment, a special spinning roller 5 is adopted, and the cutting depth of the spinning roller 5 is (0.1-1.0) mm.
In the embodiment, a special spinning roller 5 is adopted, and the feeding rate of the spinning roller 5 is (0.3-0.5) mm/r.
In the embodiment, a numerical control processing machine tool is adopted, and the rotating speed of a main shaft is (1200-2000) r/min.
In the embodiment, the wheel 2 with the undersut weight reducing structure is arranged on a main shaft of a numerical control machine tool, and is processed according to the spinning process, so that the wheel 2 with the undersut weight reducing structure with improved strength and service life is obtained.
Example 4
Various performance tests were performed on the vehicle wheel of example 1. The above wheels were subjected to 13-degree impact strength, radial fatigue, bending fatigue, and other wheel strength and fatigue tests at the test center of the central camkiu corporation. Tests show that the wheel meets the standards of the United states wheels SAE J175 and SAE J328-2005, namely the requirements of 13-degree impact strength, radial fatigue and bending fatigue performance, and can also meet the requirements of national standards GB/T5334-.
Claims (4)
1. The weight reducing structure of the aluminum alloy wheel Udercut is characterized in that the weight reducing structure is positioned in a rim on the outer side of the aluminum alloy wheel and is in the shape of an arc groove, the depth of the arc groove of the weight reducing structure of the wheel Udercut is 0-20mm, the distance between the two ends of the weight reducing structure of the Udercut and the edge of a spoke is 7-10 mm, the width of the weight reducing structure of the Udercut is 3-10 mm, the length of the weight reducing structure of the Udercut is 0-20mm, and the arc angle of the weight reducing structure of the Udercut is R3 mm-R10 mm.
2. The strengthening processing method of the aluminum alloy wheel Udermut weight-reducing structure is characterized in that a special groove processing cutter is adopted, the arc angle of the groove cutter is R3 mm-R10 mm, the feed rate of the groove cutter (4) is (0.1-1.0) mm/R, and the rotating speed of a main shaft is (1200-.
3. The method for strengthening the weight-reducing structure of the aluminum alloy wheel Udermut of claim 2, wherein the cutting amount of a groove cutter is 0.1-1.0 mm.
4. The strengthening processing method of the aluminum alloy wheel Udermut weight reducing structure as recited in claim 2, further comprising a spinning strengthening process, wherein the arc angle of the spinning roller is R3 mm-R10 mm, the cutting depth is (0.1-1.0) mm, the feed rate is (0.3-0.5) mm/R, and the main shaft rotation speed is (1200- > 2000) R/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111592729.9A CN114179563A (en) | 2021-12-24 | 2021-12-24 | Aluminum alloy wheel Udermut weight reduction structure and strengthening processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111592729.9A CN114179563A (en) | 2021-12-24 | 2021-12-24 | Aluminum alloy wheel Udermut weight reduction structure and strengthening processing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114179563A true CN114179563A (en) | 2022-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111592729.9A Pending CN114179563A (en) | 2021-12-24 | 2021-12-24 | Aluminum alloy wheel Udermut weight reduction structure and strengthening processing method |
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| Country | Link |
|---|---|
| CN (1) | CN114179563A (en) |
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2021
- 2021-12-24 CN CN202111592729.9A patent/CN114179563A/en active Pending
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