CN110696551A - Lightweight composite hub, hub unit assembly and hub manufacturing method - Google Patents
Lightweight composite hub, hub unit assembly and hub manufacturing method Download PDFInfo
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- CN110696551A CN110696551A CN201911069831.3A CN201911069831A CN110696551A CN 110696551 A CN110696551 A CN 110696551A CN 201911069831 A CN201911069831 A CN 201911069831A CN 110696551 A CN110696551 A CN 110696551A
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- hub
- rudder
- sleeve
- cast iron
- bolt mounting
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- 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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- 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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- 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
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Abstract
The invention discloses a light-weight composite hub, a hub unit assembly and a manufacturing method of the hub, and relates to the technical field of commercial vehicle hubs, wherein the light-weight composite hub comprises a cast iron framework body and an aluminum alloy cladding body, and the aluminum alloy cladding body is cast and wrapped on the outer side of the cast iron framework body; the cast iron framework body comprises a sleeve-shaped framework body and a rudder-shaped framework, the rudder-shaped framework is integrally arranged on the outer side of the sleeve-shaped framework body, the aluminum alloy cladding body comprises a sleeve-shaped framework cladding body cast on the sleeve-shaped framework body and a rudder-shaped framework cladding body cast on the rudder-shaped framework, and the sleeve-shaped framework cladding body and the rudder-shaped framework cladding body are integrally cast and molded; the rudder-shaped framework comprises a plurality of rudders and a rudder ring connecting the rudders together, one end of each rudders is integrally arranged with the sleeve-shaped framework body, wheel bolt mounting holes are formed in the other end of each rudders, and half-axle bolt mounting holes or end cover bolt mounting holes are formed in the sleeve-shaped framework body. This compound wheel hub of lightweight can realize the lightweight of wheel hub, and its structure has higher intensity again.
Description
Technical Field
The invention relates to the technical field of commercial vehicle hubs, in particular to a light composite hub, a hub unit assembly and a hub manufacturing method.
Background
With the rapid increase of Chinese economy, high-end logistics represented by electricity merchants, dangerous chemicals, cold chains and the like are rapidly developed, and the requirements on the light weight of vehicles are more outstanding; taking 1 tractor as an example (operating about 20 kilometers per year), each weight is reduced by 1Kg, and the annual earning cost is nearly 200 yuan; therefore, the demand of commercial vehicle users and whole vehicle factories for light weight is urgent.
The conventional hub of the commercial vehicle is made of nodular cast iron, so that the product is heavy in quality and has a large light-weight space; however, the hub is an important safety part for bearing and rotating the vehicle, and the bearing capacity and other performance indexes of the hub are high.
The density of the common nodular cast iron is about 7.2 to 7.3Kg/m3The density of the aluminium is only 2.7Kg/m3About 37.5% of nodular cast iron; therefore, the aluminum alloy is used for replacing cast iron to become an important method for lightening the hub; but at the same time maintaining the corresponding fatigue strength of the hub. In other words, the problem that needs to be solved urgently in the hub production at present is to ensure the fatigue strength of the hub while realizing the lightweight of the hub.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a light-weight composite hub, which can realize the light weight of the hub and has higher strength in structure.
The invention also aims to solve the technical problem of providing a manufacturing method of the light composite hub.
As a same inventive concept, a further technical problem to be solved by the present invention is to provide a hub unit assembly.
In order to solve the technical problems, the invention adopts the following technical scheme:
compound wheel hub of lightweight includes: the aluminum alloy cladding body is cast and wraps the outer side of the cast iron framework body; the cast iron skeleton body comprises a sleeve-shaped skeleton body and a rudder-shaped skeleton, the rudder-shaped skeleton is integrally arranged on the outer side of the sleeve-shaped skeleton body, the aluminum alloy cladding body comprises a sleeve-shaped skeleton cladding body cast on the sleeve-shaped skeleton body and a rudder-shaped skeleton cladding body cast on the rudder-shaped skeleton, and the sleeve-shaped skeleton cladding body and the rudder-shaped skeleton cladding body are integrally cast and molded; the rudder-shaped framework comprises a plurality of rudders and rudder rings which are connected together, one ends of the rudders are integrally arranged with the sleeve-shaped framework body, wheel bolt mounting holes are formed in the other ends of the rudders, and half shaft bolt mounting holes or end cover bolt mounting holes are formed in the sleeve-shaped framework body.
Preferably, the part of the sleeve-shaped framework body provided with the half-shaft bolt mounting hole or the end cover bolt mounting hole protrudes outwards to form a protruding part, and a groove part is formed between every two adjacent protruding parts.
Preferably, the outer side wall of the protruding part is provided with a machined step.
Preferably, the outer side wall of the groove part is provided with a casting step.
Preferably, the part of the rudder-shaped framework, where the wheel bolt mounting hole is formed, is provided with a bolt mounting end face, and the bolt mounting end face exposes out of the rudder-shaped framework cladding body.
Preferably, the rudder-shaped framework is provided with an anti-rotation blocking platform for preventing the wheel bolt from rotating.
Preferably, a first bearing hole, a hub inner cavity, a second bearing hole and a first oil seal mounting hole are formed in the cast iron framework body, the first bearing hole and the second bearing hole are respectively located on two sides of the hub inner cavity, and the first oil seal mounting hole is located on the outer side of the first bearing hole.
In order to solve the second technical problem, the hub manufacturing method adopted by the invention comprises the following steps:
A. casting and molding the cast iron framework body by a sand casting method;
B. shot blasting and polishing the cast iron framework body;
C. processing a positioning end face on the cast iron framework body, wherein the positioning end face is used for positioning the cast iron framework body in an aluminum casting die;
D. pickling and preheating the machined cast iron framework body;
E. placing the cast iron framework body in the step D in the cast aluminum mold, and wrapping an aluminum alloy on the cast iron framework body by a casting method to form a composite hub;
F. e, carrying out heat treatment on the composite hub in the step E to improve the strength of the aluminum alloy part;
G. and F, processing the composite hub in the step F to a finished product.
Preferably, in the step C, a step is machined on the protruding portion of the sleeve-shaped framework body, where the half-shaft bolt mounting hole or the end-cap bolt mounting hole is formed.
In order to solve the third technical problem, the invention provides a hub unit assembly, which adopts the light-weight composite hub.
After the technical scheme is adopted, the invention has the beneficial effects that:
the composite hub comprises a cast iron framework body and an aluminum alloy cladding body which is cast and wrapped on the cast iron framework body, wherein the cast iron framework body is integrally and integrally provided with a part with higher requirements on fatigue strength and hardness, most of load of the hub acts on the cast iron framework body, the cast iron framework body and the aluminum alloy cladding body are tightly combined and are not easy to separate, and the bearing capacity of the hub is stronger.
According to the hollow-structure rudder-shaped framework, on the premise that the hardness and the fatigue strength of a hub are guaranteed, the weight reduction effect can be guaranteed to the maximum extent.
In addition, the bearing of the hub unit assembly can generate larger friction heat and the oil seal can also generate larger heat when bearing and rotating, the highest temperature can reach 120 ℃, and the high temperature can influence the hardness of the bearing rolling body, the sealing effect of the oil seal rubber part and the aging speed. The heat conduction coefficient of the aluminum is much higher than that of cast iron, so the aluminum alloy cladding body not only has the weight reduction effect, but also enhances the heat dissipation effect.
In conclusion, compared with the traditional cast iron hub, the lightweight hub has the advantages that the overall weight is light, the lightweight can reach 28-35%, the structural strength is high compared with the hub made of light materials such as aluminum alloy and the like, the requirement of the hub as a vehicle bearing part on high bearing capacity is met, the cost is low, the cost is saved by about 20-30% compared with that of a pure aluminum hub, the requirement of the fatigue strength of the hub is met while the lightweight of the hub is realized, and the heat dissipation effect is good.
Drawings
FIG. 1 is a perspective view of a lightweight composite hub of the present invention;
FIG. 2 is a schematic cross-sectional view of FIG. 1;
FIG. 3 is an exploded view of the lightweight composite hub of FIG. 1;
FIG. 4 is a schematic structural view of a cast iron skeleton body;
FIG. 5 is a schematic cross-sectional view of FIG. 4;
FIG. 6 is a perspective view of the hub unit assembly of the present invention;
FIG. 7 is a schematic cross-sectional view of FIG. 6;
in the figure: 1-cast iron skeleton body, 11-sleeve-shaped skeleton body, 110-bulge, 1101-machining step, 111-groove, 1110-casting step, 12-rudder-shaped skeleton, 121-anti-rotation stop table, 123-tiller, 124-rudder ring, 2-aluminum alloy cladding, 21-sleeve-shaped skeleton cladding, 22-rudder-shaped skeleton cladding, 31-wheel bolt mounting hole, 32-bolt mounting end face, 33-bolt mounting end face, 41-first bearing hole, 42-hub inner cavity, 43-second bearing hole, 44-half axle bolt mounting hole, 45-first oil seal mounting hole, 46-second oil seal mounting hole, 51-first bearing, 52-second bearing, 53-first oil seal, 54-second oil seal, 55-snap ring, 56-sealing ring, 57-ABS ring gear, and 58-wheel bolt.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
The lightweight composite hub as shown in fig. 1 to 3 comprises a cast iron frame body 1 and an aluminum alloy cladding body 2, wherein the aluminum alloy cladding body 2 is cast and wraps the outer side of the cast iron frame body 1;
the cast iron skeleton body 1 comprises a sleeve-shaped skeleton body 11 and a rudder-shaped skeleton 12, the rudder-shaped skeleton 12 is integrally arranged on the outer side of the sleeve-shaped skeleton body 11, the aluminum alloy cladding body 2 comprises a sleeve-shaped skeleton cladding body 21 cast on the sleeve-shaped skeleton body 11 and a rudder-shaped skeleton cladding body 22 cast on the rudder-shaped skeleton 12, and the sleeve-shaped skeleton cladding body 21 and the rudder-shaped skeleton cladding body 22 are integrally cast and formed.
As shown in fig. 4, the rudder-like frame 12 includes a plurality of rudder shanks 123 and a rudder ring 124 connecting the plurality of rudder shanks 123 together, one end of the rudder shank 123 is integrally provided with the sleeve-like frame body 11, the other end of the rudder shank 123 is provided with a wheel bolt mounting hole 31, and the sleeve-like frame body 11 is provided with a half axle bolt mounting hole 44 or an end cap bolt mounting hole. The cast iron hollowed-out integrated structure of the rudder-shaped framework 12 not only ensures the strength, but also is compatible with the weight reduction effect.
The hub structure mounted on the drive shaft and the hub structure mounted on the non-drive shaft differ only slightly in the position of the connection flange in the axial direction, and in the present embodiment, the rudder-like skeleton 12 and the rudder-like skeleton cover 22 together form the connection flange. When the wheel hub is mounted on the driving shaft, the sleeve-shaped framework body 11 is provided with a half shaft bolt mounting hole 44, a flange at the end part of the half shaft is provided with a corresponding half shaft bolt mounting hole, and the half shaft bolt is connected with the wheel hub and the half shaft; when the hub is mounted on a non-driving shaft, the sleeve-shaped framework body 11 is provided with end cover bolt mounting holes, the end cover of the hub is also provided with corresponding end cover bolt mounting holes, and the end cover bolts are connected with the end cover and the hub. The hub shown in fig. 1 to 7 in this embodiment is a hub mounted on a drive shaft.
As shown in fig. 4 and 5, the portions of the sleeve-like skeleton body 11 where the axle bolt mounting holes 44 are opened are projected outward to form projecting portions 110, and groove portions 111 are formed between adjacent projecting portions 110. The outlet portion 110 and the groove portion 111 can prevent the sleeve-shaped framework body 11 from rotating circumferentially relative to the sleeve-shaped framework cladding body 21, further prevent the cast iron framework body 1 and the aluminum alloy cladding body 2 from rotating circumferentially, increase the integrity of the light-weight composite hub, and prevent the cast iron framework body 1 and the aluminum alloy cladding body 2 from disengaging.
Correspondingly, the surface of the aluminum alloy cladding body 2 is also provided with a convex part and a concave part corresponding to the convex part 110 and the concave part 111 of the sleeve-shaped framework body 11, and the concave-convex fluctuation can increase the heat dissipation area of the aluminum alloy cladding body 2. After the hub unit assembly is installed on a vehicle, when the vehicle runs, a bearing in the hub unit assembly bears rotation, the bearing can generate large friction heat when bearing rotation is carried out, the oil seal can also generate large heat, the temperature can reach 120 ℃ at the highest temperature, and the hardness of a bearing rolling body and the sealing effect and the aging speed of an oil seal rubber part can be influenced by high temperature. The heat conduction coefficient of the aluminum is much higher than that of cast iron, so the aluminum alloy cladding body not only has the weight reduction effect, but also enhances the heat dissipation effect.
The outer side wall of the projection 110 is provided with a machined step 1101. The outer side wall of groove portion 111 is provided with a cast step 1110. The surface area of the cast iron frame body can be increased by arranging the machining step 1101 and the casting step 1110, so that the adhesive force between the joint surfaces is improved when the aluminum alloy cladding body 2 and the cast iron frame body 1 are combined, in addition, the machining step 1101 and the casting step 1110 can also prevent the aluminum alloy cladding body 2 and the cast iron frame body from sliding in an axial relative dislocation manner, the integrity of the light-weight composite hub is improved, the cast iron frame body 1 and the aluminum alloy cladding body 2 are prevented from being separated, and the reliability of the combination of the light-weight composite hub is improved.
As shown in fig. 1 and 2, bolt attachment end surfaces (32,33) are provided at portions of the rudder-like frame 12 where the wheel bolt attachment holes 31 are opened, and the bolt attachment end surfaces (32,33) are exposed from the rudder-like frame coating body 22. The fatigue strength of the cast iron material is high, the bolt mounting end surfaces (32,33) of the cast iron material are exposed, after the wheel bolt 58 is pressed, the bolt mounting end surfaces (32,33) are directly contacted with the wheel bolt, the pressure transmitted from the wheel bolt can be received, and the bolt mounting end surfaces (32,33) of the cast iron material are not easy to be extruded and deformed or even crushed.
The rudder-like frame 12 is provided with an anti-rotation block 121 for preventing rotation of the wheel bolt.
As shown in fig. 5, a first bearing hole 41, a hub inner cavity 42, a second bearing hole 43 and a first oil seal mounting hole 45 are formed in the cast iron frame body 1, the first bearing hole 41 and the second bearing hole 43 are respectively located on two sides of the hub inner cavity 42, and the first oil seal mounting hole 45 is located on the outer side of the first bearing hole 41, namely, on the side close to the axle shaft bolt hole 44.
The reason why the half-shaft bolt mounting hole 44, the first bearing hole 41, the second bearing hole 43, the anti-rotation block 121 and the first oil seal mounting hole 45 are provided in the cast iron skeleton body 1 is analyzed as follows:
a large torque is required for tightening the side bolt, and therefore the position of the side bolt mounting hole 44 needs to be made of cast iron material to improve the thread strength there.
The first bearing hole 41 and the second bearing hole 43 are main bearing areas, and therefore, high strength and hardness are required, so that the positions are made of cast iron.
The wheel bolt mounting hole 31 and the bolt mounting end surface (32,33) of the portion of the rudder-like frame 12 where the wheel bolt mounting hole 31 is opened are made of cast iron in order to prevent the wheel bolt mounting hole 31 and the bolt mounting end surface (32,33) from being crushed when the wheel bolt 58 is subjected to a force, and therefore, the position is required to have high strength and hardness.
The rotation prevention table 121 receives a large pressing force when preventing the rotation of the wheel bolt 58, and thus requires a high hardness and a certain thickness of material, so that the position is made of cast iron.
First oil blanket mounting hole 45 need assemble the oil blanket, therefore need be higher to the requirement of this position to keeping cylindricity, intensity, and first oil blanket mounting hole 45 is located wheel hub's inboard simultaneously, and the heat that the inner part produced is difficult for effluvium when wheel hub moves, and the heat altered volume requirement of this department is more stable, and the easy thermal deformation of aluminum alloy can lead to the emergence of oil leak, consequently, first oil blanket mounting hole 45 department adopts the cast iron material to make.
Parts with higher requirements on strength and hardness, such as a bearing hole, a wheel bolt mounting position, an oil seal mounting position and the like, are connected into a whole in a centralized manner to form a cast iron framework body through casting, the structure of the integrated type ensures good structural performance, and other parts with relatively lower requirements on strength and hardness are cast by adopting aluminum alloy and are coated outside the cast iron framework body, so that the weight of the wheel hub is reduced on the whole. Therefore, the light composite hub can realize the light weight of the hub and has higher strength.
The manufacturing method of the light composite hub comprises the following steps:
A. casting and molding the cast iron framework body 1 by a sand casting method;
B. shot blasting and polishing the cast iron framework body 1;
C. processing a positioning end face on the cast iron framework body 1, wherein the positioning end face is used for positioning the cast iron framework body 1 in an aluminum casting die;
D. pickling and preheating the machined cast iron framework body 1;
E. placing the cast iron framework body in the step D in the cast aluminum mold, and wrapping an aluminum alloy on the cast iron framework body by a casting method to form a composite hub;
F. e, carrying out heat treatment on the composite hub in the step E to improve the strength of the aluminum alloy part;
G. and F, processing the composite hub in the step F to a finished product.
In the step C, a machining step 1101 is machined on the protruding portion 110 of the sleeve-shaped framework body 1, where the half-axle bolt mounting hole or the end-cap bolt mounting hole is opened. The machining step 1101 can enhance the axial clamping position of the aluminum alloy cladding body 2, prevent the aluminum alloy cladding body 2 from axially separating from the cast iron framework body 1, and increase the bonding strength
The positioning end face can be one of the bolt mounting end face 32 and the bolt mounting end face 33 formed in a machining mode, the bolt mounting end face 33 is selected as the positioning end face in the embodiment, the reason is that the area of the bolt mounting end face 33 is larger, the end face is used as the positioning end face during casting to be more stable, and the cast iron framework body 1 is not prone to shaking and inclining.
According to different vehicle types and road environment changes. The weight ratio of the cast iron framework body to the aluminum alloy cladding body can be adjusted to meet different requirements.
The invention also provides a hub unit assembly which comprises the light-weight composite hub.
The hub unit including the lightweight hub in fig. 6 and 7 will be described in detail:
the wheel hub unit assembly includes light-weighted compound wheel hub and the relevant spare part of its assembly, and relevant spare part mainly includes: a first bearing 51, a second bearing 52, a first oil seal 53, a second oil seal 54, a snap ring 55, a seal ring 56, an ABS ring gear 57, a wheel bolt 58 and a half-shaft bolt; the wheel bolt mounting hole 31 is provided with a wheel bolt 58 in a pressing mode, the first bearing hole 41 is provided with a first bearing 51 in a pressing mode, the second bearing hole 43 is provided with a second bearing 52 in a pressing mode, a joint of an inner ring of the first bearing 51 and an inner ring of the second bearing 52 is provided with a clamping ring 55 and a sealing ring 56, a first oil seal 53 is arranged in a first oil seal mounting hole 45 in a pressing mode, a second oil seal 54 is arranged in a second oil seal mounting hole 46 on the outer side of the second bearing hole in a pressing mode, a half-axle bolt is arranged in a half-axle bolt mounting hole 44 in a pressing mode, and an ABS gear ring 57 is fixed on the outer peripheral face of.
Other configurations of the related components described above are possible, and the above description is only a preferred embodiment of the present invention, and other hub unit assemblies including the lightweight composite hub of the present invention are also within the scope of the present invention.
Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. Compound wheel hub of lightweight, its characterized in that includes:
the aluminum alloy cladding body is cast and wraps the outer side of the cast iron framework body;
the cast iron skeleton body comprises a sleeve-shaped skeleton body and a rudder-shaped skeleton, the rudder-shaped skeleton is integrally arranged on the outer side of the sleeve-shaped skeleton body, the aluminum alloy cladding body comprises a sleeve-shaped skeleton cladding body cast on the sleeve-shaped skeleton body and a rudder-shaped skeleton cladding body cast on the rudder-shaped skeleton, and the sleeve-shaped skeleton cladding body and the rudder-shaped skeleton cladding body are integrally cast and molded;
the rudder-shaped framework comprises a plurality of rudders and rudder rings which are connected together, one ends of the rudders are integrally arranged with the sleeve-shaped framework body, wheel bolt mounting holes are formed in the other ends of the rudders, and half shaft bolt mounting holes or end cover bolt mounting holes are formed in the sleeve-shaped framework body.
2. The lightweight composite hub according to claim 1, wherein the portion of said sleeve-like skeleton body on which said axle bolt mounting holes or said end-cap bolt mounting holes are formed protrudes outward to form a protruding portion, and a groove portion is formed between adjacent protruding portions.
3. The lightweight composite hub of claim 2, wherein the outboard wall of said lobes is provided with a machined step.
4. The lightweight composite hub of claim 2, wherein an outer sidewall of said groove portion is provided with a cast step.
5. The lightweight composite hub according to claim 1, wherein a portion of the rudder-like skeleton where the wheel bolt mounting hole is opened is provided with a bolt mounting end surface, and the bolt mounting end surface exposes the rudder-like skeleton cover.
6. The lightweight composite hub of claim 1, wherein said rudder-like frame is provided with an anti-rotation stop for preventing rotation of a wheel bolt.
7. The lightweight composite hub according to claim 1, wherein a first bearing hole, a hub inner cavity, a second bearing hole and a first oil seal mounting hole are formed in the cast iron skeleton body, the first bearing hole and the second bearing hole are respectively located on two sides of the hub inner cavity, and the first oil seal mounting hole is located on the outer side of the first bearing hole.
8. A method of manufacturing a lightweight composite hub as set forth in claim 1, including the steps of:
A. casting and molding the cast iron framework body by a sand casting method;
B. shot blasting and polishing the cast iron framework body;
C. processing a positioning end face on the cast iron framework body, wherein the positioning end face is used for positioning the cast iron framework body in an aluminum casting die;
D. pickling and preheating the machined cast iron framework body;
E. placing the cast iron framework body in the step D in the cast aluminum mold, and wrapping an aluminum alloy on the cast iron framework body by a casting method to form a composite hub;
F. e, carrying out heat treatment on the composite hub in the step E to improve the strength of the aluminum alloy part;
G. and F, processing the composite hub in the step F to a finished product.
9. The method of manufacturing a lightweight composite wheel hub according to claim 8, wherein in step C, a step is machined on the projecting portion of the sleeve-like skeleton body on which the half-axle bolt mounting hole or the end-cap bolt mounting hole is bored.
10. A hub unit assembly comprising a lightweight composite wheel hub according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911069831.3A CN110696551A (en) | 2019-11-05 | 2019-11-05 | Lightweight composite hub, hub unit assembly and hub manufacturing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911069831.3A CN110696551A (en) | 2019-11-05 | 2019-11-05 | Lightweight composite hub, hub unit assembly and hub manufacturing method |
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| CN110696551A true CN110696551A (en) | 2020-01-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111979381A (en) * | 2020-08-26 | 2020-11-24 | 合肥工业大学 | Heat treatment method for preventing quenching cracks of aluminum-iron composite casting hub |
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2019
- 2019-11-05 CN CN201911069831.3A patent/CN110696551A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111979381A (en) * | 2020-08-26 | 2020-11-24 | 合肥工业大学 | Heat treatment method for preventing quenching cracks of aluminum-iron composite casting hub |
| CN111979381B (en) * | 2020-08-26 | 2021-11-09 | 合肥工业大学 | Heat treatment method for preventing quenching cracks of aluminum-iron composite casting hub |
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