CN108284701A - A kind of stamping forming automobile hub unit and its manufacturing method - Google Patents
A kind of stamping forming automobile hub unit and its manufacturing method Download PDFInfo
- Publication number
- CN108284701A CN108284701A CN201810192628.4A CN201810192628A CN108284701A CN 108284701 A CN108284701 A CN 108284701A CN 201810192628 A CN201810192628 A CN 201810192628A CN 108284701 A CN108284701 A CN 108284701A
- Authority
- CN
- China
- Prior art keywords
- spoke
- wheel
- wheel hub
- forming
- stamping
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
- B60B3/12—Means of reinforcing disc bodies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/02—Stamping using rigid devices or tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/16—Heating or cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/26—Making other particular articles wheels or the like
-
- 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
- B60B3/14—Attaching disc body to hub ; Wheel adapters
- B60B3/16—Attaching disc body to hub ; Wheel adapters by bolts or the like
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The present invention provides a kind of stamping forming automobile hub units, including wheel rim, spoke and wheel hub, there are five spoke settings, wheel hub is arranged in wheel rim, wheel rim is arranged by spoke on wheel hub, bolt hole there are five being opened on wheel hub, wheel rim, spoke and wheel hub are integrally formed by integral plate punching press.After the metal material of the automobile hub unit is heated to Ac3 or more, austenitizing is completed or is partially completed, material softening, is easy plastic forming, is facilitated plate stamping machine-shaping.It should cool down at once after workpiece plastic forming, workpiece is because of high temperature and softening transform after preventing molding, after cooling, the metallographic of workpiece material is converted into martensite by austenite, Tensile strength is increased to 23 times before quenching, tensile strength is increased to 1500MPa or more, substantially increases product usage safety performance.
Description
Technical field
The invention belongs to automotive hub manufacturing technology field, it is related to a kind of stamping forming automobile hub unit and its manufacture
Method.
Background technology
Wheel hub is one of most important breaking piece on automobile, is divided into steel wheel hub and aluminum wheel hub, wheel hub to subject
The pressure of automobile and loading mass action, by vehicle, when starting, braking, dynamic torque is acted on, and is being travelled also subject to automobile
The irregular alternation stress that turning, concave-convex road surface, road obstacle impact etc. are generated from different directions dynamic load in the process.
The q＆r of wheel hub is not only related to the safety of vehicle and passengers inside the car's goods and materials, also affects vehicle under steam
The performances such as stationarity, maneuverability, comfort, that this requires wheel hub dynamic-balances is good, fatigue strength is high, the rigidity that has had and elasticity,
Size and shape precision height, light weight etc., aluminium wheels meet above-mentioned requirements with its good comprehensive performance, in safety, relax
Adaptive and lightweight etc. are had outstanding performance, and have been won market favor, just gradually steel wheel hub have been replaced to become optimal selection.
More, the most important technological process of production of automobile aluminum wheel hub that existing automotive hub is all that aluminum alloy materials are made
It is：Fusing → refining → the examination of materials → low pressure casting → x-ray inspection → heat treatment → mechanical processing → dynamic balancing inspection →
Air tight test → application.
Such as application No. is 201410263566.3 patent of invention, a kind of steel plate forming wheel hub structure of the disclosure of the invention,
Its main composition is：Wheel rim, spoke and torque fastener, spoke are inlaid hollow structure with torque fastener, and spoke is weldering with wheel rim
Binding structure.Wheel rim be annealed state hot forming high-strength steel sheet formed with known traditional handicraft, spoke be annealed state heat at
The inside and outside wall of shape high-strength steel plate stamping and forming, spoke spoke is formed centrally necessary distance away from spoke spoke shape, with to
The moment of inertia and static moment of spoke, spoke and wheel greatly improved through the chimeric with torque fastener for the anti-load structure of bending resistance square load
Enter quenching in shape control glowing furnace after rim welding, with the stress intensity of 1500MPa or more.Form ultralight amount,
The automotive hub of high intensity, low cost.
The hot forming high-strength steel plate stamping and forming of above-mentioned automotive hub annealed state, and automotive hub currently on the market
Used material is the conventional ones technique of common iron, without using reinforcement process, is easy during high-speed impact broken
It splits.
Invention content
The purpose of the present invention is there is the above problem in view of the prior art, it is proposed that a kind of stamping forming automotive hub
Unit and its manufacturing method, stamping cracking caused by reshaping can avoid cold punching technology well after heating and softening are pulled
The defects of, especially for the workpiece of corner radius very little, this technique is it is possible to prevente effectively from cracking.
Object of the invention can be realized by the following technical scheme：A kind of stamping forming automobile hub unit, including
Wheel rim, spoke and wheel hub, which is characterized in that there are five spoke settings, and wheel hub is arranged in wheel rim, and wheel rim is arranged by spoke
Bolt hole there are five being opened on wheel hub, on wheel hub, wheel rim, spoke and wheel hub are integrally formed by integral plate punching press.
Further, raised reinforcing rib on the spoke.
A kind of manufacturing method of stamping forming automobile hub unit, which is characterized in that be as follows：
One, steel alloy is heated and softened：Alloy steel material is heated to Ac3 to the temperature between fusing point, Ovshinsky occurs for metallographic
Bodyization changes, and 0.5min-10min is kept the temperature in Ac3 or more；
Two, plastic forming：It is quickly transferred on hub unit punch-forming mold, completes punching press plastic forming；
Three, rapid cooling：Workpiece drastically cools down quenching while completing punching press plastic forming, and cooling velocity is needed more than 20
DEG C/s, it is cooled to Ms temperature or less.
After metal material is heated to Ac3 or more, austenitizing is completed or is partially completed, material softening, is easy plastic forming,
Facilitate plate stamping machine-shaping.It should cool down at once after workpiece plastic forming, workpiece is because high temperature softens again after preventing molding
Deformation, after cooling, the metallographic of workpiece material is converted into martensite by austenite, and Tensile strength is increased to the 2-3 before quenching
Times, tensile strength is increased to 1500MPa or more, substantially increases product usage safety performance.
In above-mentioned steps one, the alloy steel material is Mn-B series alloys steel, Mn-Mo-B series alloys steel, Mn-
Any one in Cr-B series alloys steel, Mn-W-Ti-B series alloys steel, Cr-Mn series alloy steel.
In above-mentioned steps two, the punch-forming mold is stamping die, there is the pipeline of rapid cooling fluid inside stamping die,
Stamping die is arranged on a hydraulic press.
Compared with prior art, can be one time punching molded using the stamping forming automobile hub unit of this technique productions,
Two times punch is not needed, it is avoided that usually plank leads to cracking, intentional deformation because of two times punch, is realized simultaneously yet
Lighting reduces energy consumption.
Material softens completely after this technique medium alloy steel material is heated to Ac3 or more, can be very easy to punching press or forging and stamping
Be molded labyrinth workpiece, including molding depth, angle, bending curved surface etc..
Stamping cracking caused by reshaping can avoid cold punching technology well after softening, the defects of pulling, especially
For the workpiece at corner radius very little (right angle), this technique improves the firmness of automobile hub unit it is possible to prevente effectively from cracking
And leakproofness.
Description of the drawings
Fig. 1 is the front elevation of automobile hub unit.
Fig. 2 is the reverse side figure of automobile hub unit.
Fig. 3 is the sectional view of automobile hub unit.
In figure, 1, wheel rim；2, spoke；3, wheel hub；4, bolt hole；5, reinforcing rib.
Specific implementation mode
As shown in Figure 1, Figure 2, Figure 3 shows, this stamping forming automobile hub unit includes wheel rim 1, spoke 2 and wheel hub 3, wheel
Spoke 2 setting there are five, wheel hub 3 be arranged in wheel rim 1, wheel rim 1 by spoke 2 be arranged on wheel hub 3, opened on wheel hub 3 there are five
Bolt hole 4, wheel rim 1, spoke 2 and wheel hub 3 are integrally formed by integral plate punching press.
Specifically, raised reinforcing rib 5 on the spoke 2.
The present invention also provides a kind of manufacturing methods of stamping forming automotive hub Unit 3, are as follows：
One, steel alloy is heated and softened：Alloy steel material is heated to Ac3 to the temperature between fusing point, Ovshinsky occurs for metallographic
Bodyization changes, and 0.5min-10min is kept the temperature in Ac3 or more；
Two, plastic forming：It is quickly transferred on 3 unit punch-forming mold of wheel hub, completes punching press plastic forming；
Three, rapid cooling：Workpiece drastically cools down quenching while completing punching press plastic forming, and cooling velocity is needed more than 20
DEG C/s, it is cooled to Ms temperature or less.
After metal material is heated to Ac3 or more, austenitizing is completed or is partially completed, material softening, is easy plastic forming,
Facilitate plate stamping machine-shaping.It should cool down at once after workpiece plastic forming, workpiece is because high temperature softens again after preventing molding
Deformation, after cooling, the metallographic of workpiece material is converted into martensite by austenite, and Tensile strength is increased to the 2-3 before quenching
Times, tensile strength is increased to 1500MPa or more, substantially increases product usage safety performance.
In above-mentioned steps one, the alloy steel material is Mn-B series alloys steel, Mn-Mo-B series alloys steel, Mn-
Any one in Cr-B series alloys steel, Mn-W-Ti-B series alloys steel, Cr-Mn series alloy steel.
In above-mentioned steps two, the punch-forming mold is stamping die, there is the pipeline of rapid cooling fluid inside stamping die,
Stamping die is arranged on a hydraulic press.
Claims (5)
1. a kind of stamping forming automobile hub unit, including wheel rim, spoke and wheel hub, which is characterized in that spoke is provided with
Five, wheel hub is arranged in wheel rim, and wheel rim is arranged by spoke opens on wheel hub, on wheel hub that there are five bolt hole, wheel rim, spokes
And wheel hub is integrally formed by integral plate punching press.
2. a kind of stamping forming automobile hub unit according to claim 1, which is characterized in that have on the spoke
The reinforcing rib of protrusion.
3. a kind of manufacturing method of stamping forming automobile hub unit, which is characterized in that be as follows：
One, steel alloy is heated and softened：Alloy steel material is heated to Ac3 to the temperature between fusing point, austenitizing occurs for metallographic
Transformation, 0.5min-10min is kept the temperature in Ac3 or more；
Two, plastic forming：It is quickly transferred on hub unit punch-forming mold, completes punching press plastic forming；
Three, rapid cooling：Workpiece drastically cools down quenching while completing punching press plastic forming, cooling velocity need more than 20 DEG C/
S is cooled to Ms temperature or less.
4. a kind of manufacturing method of stamping forming automobile hub unit according to claim 3, which is characterized in that described
Alloy steel material is Mn-B series alloys steel, Mn-Mo-B series alloys steel, Mn-Cr-B series alloys steel, Mn-W-Ti-B series
Any one in steel alloy, Cr-Mn series alloy steel.
5. a kind of manufacturing method of stamping forming automobile hub unit according to claim 3, which is characterized in that upper
It states in step 2, the punch-forming mold is stamping die, has the pipeline of rapid cooling fluid, stamping die setting to exist inside stamping die
On hydraulic press.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810192628.4A CN108284701A (en) | 2018-03-09 | 2018-03-09 | A kind of stamping forming automobile hub unit and its manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810192628.4A CN108284701A (en) | 2018-03-09 | 2018-03-09 | A kind of stamping forming automobile hub unit and its manufacturing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108284701A true CN108284701A (en) | 2018-07-17 |
Family
ID=62833200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810192628.4A Pending CN108284701A (en) | 2018-03-09 | 2018-03-09 | A kind of stamping forming automobile hub unit and its manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108284701A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110834176A (en) * | 2018-08-17 | 2020-02-25 | 浙江金固股份有限公司 | Rim manufacturing method and wheel manufacturing method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1835816A (en) * | 2003-08-11 | 2006-09-20 | 鹫兴产株式会社 | Method of producing wheel and the wheel |
| CN104191900A (en) * | 2014-08-20 | 2014-12-10 | 上海兴浦旋压车轮有限公司 | Integrated plate welded-joint-free vehicle wheel and forming method of integrated plate welded-joint-free vehicle wheel |
| CN105705271A (en) * | 2013-09-05 | 2016-06-22 | 通用汽车环球科技运作有限责任公司 | Methods and apparatus to produce high performance axisymmetric components |
| CN206030938U (en) * | 2016-06-12 | 2017-03-22 | 东风汽车车轮随州有限公司 | One type of lightweight molding steel wheel |
| CN107507941A (en) * | 2017-08-16 | 2017-12-22 | 浙江中硅新材料有限公司 | A kind of battery protection case and its manufacture method |
-
2018
- 2018-03-09 CN CN201810192628.4A patent/CN108284701A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1835816A (en) * | 2003-08-11 | 2006-09-20 | 鹫兴产株式会社 | Method of producing wheel and the wheel |
| CN105705271A (en) * | 2013-09-05 | 2016-06-22 | 通用汽车环球科技运作有限责任公司 | Methods and apparatus to produce high performance axisymmetric components |
| CN104191900A (en) * | 2014-08-20 | 2014-12-10 | 上海兴浦旋压车轮有限公司 | Integrated plate welded-joint-free vehicle wheel and forming method of integrated plate welded-joint-free vehicle wheel |
| CN206030938U (en) * | 2016-06-12 | 2017-03-22 | 东风汽车车轮随州有限公司 | One type of lightweight molding steel wheel |
| CN107507941A (en) * | 2017-08-16 | 2017-12-22 | 浙江中硅新材料有限公司 | A kind of battery protection case and its manufacture method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110834176A (en) * | 2018-08-17 | 2020-02-25 | 浙江金固股份有限公司 | Rim manufacturing method and wheel manufacturing method |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20181030 Address after: 314408 Room 105, Bottom Building, No. 12 Weisan Road, Haining High-tech Industrial Park, Chang'an Town, Haining City, Jiaxing City, Zhejiang Province Applicant after: Zhejiang Zhi Cheng thermal molding technology Co., Ltd. Address before: 314416 Zhejiang Jiaxing Haining Zhejiang Haining warp knitting industrial park Hongqi Avenue 50 Applicant before: Zhejiang silicon New Material Co., Ltd. |
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| TA01 | Transfer of patent application right | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180717 |
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| RJ01 | Rejection of invention patent application after publication |