CN1198691A - Method of molding cylindrical portion of central bore-carrying sheet metal - Google Patents
Method of molding cylindrical portion of central bore-carrying sheet metal Download PDFInfo
- Publication number
- CN1198691A CN1198691A CN 96197459 CN96197459A CN1198691A CN 1198691 A CN1198691 A CN 1198691A CN 96197459 CN96197459 CN 96197459 CN 96197459 A CN96197459 A CN 96197459A CN 1198691 A CN1198691 A CN 1198691A
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- rotating mould
- baseplate part
- centre bore
- tube portion
- sheet metal
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- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
A method of molding a cylindrical portion of a central bore-carrying sheet metal according to the present invention is used when a cylindrical portion at an outer circumferential region of a base part of a boss-carrying sheet metal is molded by pressing the cylindrical portion by a molding roller while retaining the sheet metal on a rotary mold and turning the sheet metal with the rotary mold. The pressing force applied to the cylindrical portion is received by a locking portion, which is engaged with a portion to be locked provided on the base part of the sheet metal, which is fitted at its shaft portion in a shaft portion of the rotary mold, is not forcibly pressed against the shaft portion of the rotary mold, and the precision, prior to the cylindrical portion molding operation, of the shape and size of the central bore is maintained even after the cylindrical portion molding operation has finished.
Description
Technical field
The present invention relates to have the tube portion manufacturing process of the metal sheet of a portion, in this one, form the coiling portion of belts such as flat belt, vee-belt, many vee-belts and make belt pulley or form tooth portion and make gear at the inner face side or the exterior side of tube portion.More particularly, the tube portion of metal sheet that relates to will have high centre bore of shape and size required precision or hub portion in central authorities of circular substrate portion with forming rolls is towards the baseplate part radial compression, and is configured as the method for reservation shape or length.
Background technology
In the prior art, tube portion manufacturing process with sheet metal material of centre bore is, be connected with the outstanding tubular hub portion that is being provided with of central authorities of the circular substrate portion of tube portion in periphery, form centre bore by this hub portion, such sheet metal material is supported in the rotating mould, and the axial region that will be arranged on the rotating mould is fitted in the above-mentioned centre bore, make the axis of rotation of rotating mould consistent with the center of baseplate part, the sheet metal material is rotated on one side with rotating mould, on one side with forming rolls with this one towards the baseplate part radial compression, formation tube portion like this.Because the influence of forming rolls extruding, baseplate part is towards the small changing of the relative positions is radially arranged, the part of above-mentioned hub portion Zhou Fangxiang is squeezed on the axial region powerfully, so, final products after tube portion is shaped are on the metal sheet, the centre bore that is formed by hub portion produces oblate distortion, and its shape and size etc. can not guarantee high accuracy.Therefore, in the prior art, machining centre bore once more after tube portion is shaped is to keep high accuracy.The circular open that use is offered in baseplate part central authorities forms the sheet metal material of above-mentioned centre bore, when implementing above-mentioned tube portion manufacturing process, also has same problem.
The present invention makes in view of the above problems, and its purpose is to provide a kind of tube portion manufacturing process with metal sheet of centre bore.Carry out a tin portion when being shaped with method of the present invention, the precision that can not cause being arranged on the centre bore of baseplate part central authorities because of the influence of forming rolls extruding reduces.
The summary of the invention summary
To achieve these goals, tube portion manufacturing process with metal sheet of centre bore of the present invention, to be supported on the rotating mould in the aforesaid substrate portion that circular substrate portion has a sheet metal material of centre bore, simultaneously, the concentric axial region of axis of rotation that is arranged on this rotating mould is fitted in the centre bore of sheet metal material, on one side the sheet metal material is rotated with rotating mould, with forming rolls will be connected with in the tube portion of baseplate part periphery and towards baseplate part footpath inwardly side push on one side, this one is shaped; It is characterized in that, make to be arranged on the rotating mould to overlap the junction surface at position with baseplate part and engage, baseplate part can not moved radially with joint on being arranged on baseplate part.
Above-mentioned centre bore comprises the hole that formed by the circular open that is opened in baseplate part central authorities or the hole that is formed by the tubular hub portion that is connected with in baseplate part central authorities.
According to above-mentioned tube portion manufacturing process, with forming rolls with the tube portion of sheet metal material the power during towards the baseplate part radial compression, by being arranged on the joint on the baseplate part, bear by the junction surface of the rotating mould side that is engaging with this joint, baseplate part does not almost have minute movement.Therefore, in shaping, the centre bore peritreme portion of the sheet metal material of the above-mentioned axial region of chimeric rotating mould side can be squeezed in by brute force because of the influence of forming rolls extruding and produce oblate distortion on the axial region, even after tube portion is shaped, also the shape and size of centre bore etc. can be remained the precision before a portion is shaped.
Among above-mentioned the present invention, adopt the 1st rotating mould and the 2nd rotating mould of chucking substrate portion as above-mentioned rotating mould, be preferably on the 1st and the 2nd rotating mould both sides junction surface is set, the joint that is separately positioned on baseplate part face side and rear side is engaged with above-mentioned junction surface, baseplate part can not moved radially.
So, forming rolls is the power during towards the baseplate part radial compression with the tube portion of sheet metal material, by being arranged on the joint of baseplate part face side and rear side, is born by each junction surface of the 1st rotating mould that is engaging with these joints and the 2nd rotating mould.Therefore, after being shaped, tube portion the shape and size of centre bore etc. can be remained precision before a portion is shaped more.
Among above-mentioned the present invention, above-mentioned junction surface and joint are preferably made and are annular.Like this, this extruding force can jointly be born by above-mentioned junction surface and joint during towards the baseplate part radial compression by the tube portion of the sheet metal material that will rotate with rotating mould at forming rolls.
The accompanying drawing simple declaration
The left-half of Fig. 1 is to be illustrated in the last process profile diagram that forms the operation of tube portion on the sheet metal material that is provided with hub portion integratedly.Right half part is to be illustrated in the sectional drawing that forms the operation of tube portion on the sheet metal material that is provided with hub portion integratedly.
The left-half of Fig. 2 is to be illustrated in the last process profile diagram that forms the operation of joint on the baseplate part of sheet metal material.Right half part is to be illustrated in the process profile diagram that forms the joint on the baseplate part of sheet metal material.
The left-half of Fig. 3 is the last process profile diagram of the 1st operation of the tube portion of expression shaping sheet metal material, and right half part is the 1st process profile diagram of representing the tube portion of shaping sheet metal material.
The left-half of Fig. 4 is the last process profile diagram of the 2nd operation of the tube portion of expression shaping sheet metal material, and right half part is the 2nd process profile diagram of representing the tube portion of shaping sheet metal material.
The left-half of Fig. 5 is to be illustrated in the last process profile diagram that forms the operation of inclined wall on the sheet metal material that is provided with hub portion integratedly, and right half part is to be illustrated in the process profile diagram that forms inclined wall on the sheet metal material that is provided with hub portion integratedly.
The left-half of Fig. 6 is to represent the inclined wall of sheet metal material is formed the last process profile diagram of the operation of a portion, and right half part is the sectional drawing that expression forms the inclined wall of sheet metal material the operation of a portion.
Fig. 7 is the enlarged drawing of Fig. 4 right half part.
Embodiment
Shown in the right half part of Fig. 2, as the sheet metal material 1 of the used mother metal of tube portion's manufacturing process of the present invention, its circular substrate portion 2 is provided with centre bore 4, and is provided with integratedly towards the extended cylindric tube of baseplate part 2 one sides portion 5 at these baseplate part 2 peripheral parts.Be provided with the circular recessed face 6 concentric in the face side of baseplate part 2, correspondingly be provided with circular the bloat face 7 concentric with centre bore 4 in its rear side with this recessed face 6 with centre bore 4.These recessed faces 6 and bloat face 7 and on baseplate part 2, form the circular bellying 8 that bloats towards baseplate part 2 rear side.The stepped portions that is positioned at recessed face 6 outer peripheral portions becomes junction surface 61,71 respectively with the stepped portions that is positioned at the face of bloating 7 circumferential portion.The centre bore 4 of above-mentioned sheet metal material 1 is the hole that tubular hub portion 3 that the central authorities at baseplate part 2 are connected with integratedly forms.This hub portion 3 is with formation such as plunging processing, is connected with integratedly on baseplate part 2.
Above-mentioned tube portion 5 forms by last operation and tube portion formation operation that tube portion shown in Figure 1 forms operation.Promptly, shown in the left-half of Fig. 1,, simultaneously that the axial region 120 of counterdie 100 is chimeric with hub portion 3 by the sheet metal material 11 that is provided with hub portion 3 integratedly being mounted at counterdie 100 and being provided on its movable counterdie 110 on every side, like this, with axial region 120 sheet metal material 11 is located.Then, shown in the right half part of Fig. 1, make pressure die 200 and be provided in its last extrusion die 210 on every side and shown in arrow a, b, descend, using pressure die 200 is pressed in baseplate part 2 on the counterdie 100, like this, use pressure die 200 and counterdie 100 crampings hold on baseplate part 2, simultaneously, use extrusion die 210 the outer peripheral portion bending of baseplate part 2 is formed tube portion 5.
Above-mentioned joint 61,71 for example forms through the last operation and the joint formation operation of formation operation in joint shown in Figure 2.That is, shown in the left-half of Fig. 2, the sheet metal material 12 that is provided with hub portion 3 is integratedly mounted on counterdie 300, simultaneously that the axial region 310 of counterdie 300 is chimeric with hub portion 3, like this, sheet metal material 12 is located with regard to available this axial region 310.Then, shown in the right half part of Fig. 2, make pressure die 410 and be provided in its last extrusion die 420 on every side and shown in arrow c, d, descend, use pressure die 410 pushing hub portion 3, hold on hub portion 3 by last pressure die 410 and counterdie 300 crampings, the circular protuberance 421 of using extrusion die 420 pushes the radially pars intermedia of baseplate part 2 downwards, and this pushing position is bloated in the circular recess 301 of counterdie 300.
Process Fig. 1 and the illustrated operation of Fig. 2 obtain the tube portion 5 of sheet metal material 1, then, and to this 5 enforcements tube of the present invention portion of forming process.In the present embodiment, this forming process is divided into the 1st operation (Fig. 3) and the 2nd operation (Fig. 4) thereafter.
In the 1st operation shown in Figure 3, adopt rotating mould 9 and forming rolls 10.This rotating mould 9 has the function of the baseplate part 2 of support plate gold copper-base alloy 1.Forming rolls 10 is used for the inside square extruding towards the footpath of baseplate part 2 with above-mentioned tube portion 5.As shown in Figure 3, rotating mould 9 is made of the 1st rotating mould 91 and the 2nd rotating mould 95, on the 1st rotating mould 91, have the ring-type recessed face 92 that overlaps with the face that bloats 7 of above-mentioned bellying 8 and the cylindric bearing-surface 93 chimeric, and be provided with the axial region 94 concentric with axis of rotation with tube portion 5.On the 2nd rotating mould 95, have the ring-type that overlaps with the recessed face 6 of above-mentioned bellying 8 and bloat face 96 and be positioned at the compressive plane 97 that this bloats face 96 both sides.On forming rolls 10, have columnar forming face 10a.
As shown in Figure 4, in the 2nd operation, also adopt rotating mould 9a and forming rolls 20.Rotating mould 9a has the function of the baseplate part 2 of support plate gold copper-base alloy 1.Forming rolls 20 is used for the inside square extruding towards the footpath of baseplate part 2 with above-mentioned tube portion 5.As shown in Figure 4, rotating mould 9a is made of the 1st rotating mould 91a and the 2nd rotating mould 95a.The 1st rotating mould 91a only is slightly littler than the 1st rotating mould 91 diameters with the difference of the 1st rotating mould 91 illustrated in fig. 3.On the 1st rotating mould 91a, have the recessed face 92a and the columnar bearing-surface 93a of ring-type, also be provided with axial region 94a.On the 2nd rotating mould 95a, with the 2nd rotating mould 95 illustrated in fig. 3 similarly, have the face that the bloats 96a and the compressive plane 97a of ring-type.On forming rolls 20, have the forming face 20a of oval tubular vertically.
In the 1st operation, shown in the left-half of Fig. 3, the sheet metal material 1 that is provided with hub portion 3 is integratedly mounted on the 1st rotating mould 91, the face that bloats 7 of baseplate part 2 is overlapped with the concave surface 92 of the 1st rotating mould 91 with being chimeric shape, simultaneously, the axial region 94 of hub portion 3 and the 1st rotating mould 91 is chimeric, with this axial region 94 sheet metal material 1 is located.Then, shown in Fig. 3 right half part, the 2nd rotating mould 95 is descended shown in arrow e, make it bloat face 96 overlaps in the recessed face 6 of baseplate part 2 with being chimeric shape, so, by the 1st rotating mould 91 and the 2nd rotating mould 95 usefulness energetically behind the baseplate part 2 of cramping sheet metal material 1, rotation is passed in the 1st rotating mould 91 or the 2nd rotating mould 95 any, make sheet metal material 1 with the 1st rotating mould 91 or 95 rotations of the 2nd rotating mould.
So, make 1 rotation of sheet metal material, and meanwhile forming rolls 10 is moved shown in arrow f, with the radial compression of tube portion 5 towards baseplate part 2.Like this, forming rolls 10 is followed the rotation of sheet metal material 1 ground, and tube portion 5 extends axially along it gradually.In the 1st operation, a portion 5 about the latter halfs are extended earlier.
In the 2nd operation, shown in the left-half of Fig. 4, make the sheet metal material 1 and the 2nd rotating mould 95a that have passed through the 1st operation opposed, then, shown in the right half part of Fig. 4, the 2nd rotating mould 95a is descended shown in arrow g, make it bloat face 96a and overlap in the recessed face 6 of baseplate part 2 with being chimeric shape.Behind the 1st rotating mould 91a and the 2nd rotating mould 95a baseplate part 2 with cramping sheet metal material 1 energetically, rotation is passed among the 1st rotating mould 91a or the 2nd rotating mould 95a any, sheet metal material 1 is rotated with the 1st rotating mould 91a or the 2nd rotating mould 95a.
Make on one side 1 rotation of sheet metal material, forming rolls 20 is moved on one side shown in arrow h, about first half of tube portion 5 is inwardly pushed the side towards baseplate part 2 footpaths the extension.Like this, forming rolls 20 is followed the rotation of sheet metal material 1 ground, and tube portion 5 is further towards extending axially, until predetermined length.
Fig. 7 is the expanded view of Fig. 4 right half part, as shown in Figure 7, in the 2nd operation of tube portion forming process, tube portion 5 is formed roll 20 during towards the radial compression of baseplate part 2, the step-like joint 61 of the recessed face 6 of baseplate part 2 engages with junction surface 98, this junction surface 98 is formed by the stepped portions of the face that the bloats 96a outer peripheral portion of the 2nd rotating mould 95a, in addition, the step-like joint 71 of the face that bloats 7 of baseplate part 2 engages with junction surface 99, and this junction surface 99 is formed by the stepped portions of circumferential portion in the recessed face 92a of the 1st rotating mould 91a.Therefore, forming rolls 20 with tube portion 5 (see figure 4)s the power (load) during towards baseplate part 2 radial compression by the joint 61,71 of two sides side in the table of baseplate part 2, junction surface 98,99 supportings by the 1st and the 2nd rotating mould 91a, 95a like this, can stop the minute movement of baseplate part 2.Therefore, can because of the extruding of forming rolls 20 influence make the axial region 94a institute of the 1st rotating mould 91a chimeric the peritreme portion of centre bore 4 of hub portion 3 be squeezed in axial region 94a by brute force and go up and produces oblateness and be out of shape.Therefore, after through the 2nd operation, also the shape and size of centre bore 4 can be remained on the precision before the 2nd operation.Therewith in the same manner, also carry out the 2nd operation of tube shown in Figure 3 portion forming process.Therefore, after through tube portion forming process, also the shape and size of centre bore 4 can be remained on the precision before portion's forming process.
In the tube portion 5 of the metal sheet A (right half part of Fig. 4) that has been shaped through above-mentioned tube portion's forming process, can form the coiling portion of belts such as flat belt, vee-belt, many vee-belts, also the tooth of face side or exterior side formation within it portion.
Fig. 5 and Fig. 6 are other examples that expression forms the operation of above-mentioned tube portion 5 and joint 61,71.
In the operation of Fig. 5, shown in the left-half of this figure, the sheet metal material 11 that is provided with hub portion 3 is integratedly mounted on counterdie 500, simultaneously that the axial region 510 of counterdie 500 is chimeric with hub portion 3, therefore, sheet metal material 11 is located with this axial region 510.Then, shown in the right half part of this figure, make pressure die 600 and be provided in its last extrusion die 610 on every side and shown in arrow i, j, descend, use pressure die 600 pushing hub portion 3, hold on hub portion 3 by last pressure die 600 and counterdie 500 crampings, the circular protuberance 611 of using extrusion die 610 pushes the radially pars intermedia of baseplate part 2 downwards, and this pushing position is bloated in the circular recess 501 of counterdie 500.In addition,, make its end be expansion and open shape ground, form inclined wall 52 by the preset range of counterdie 500 and last extrusion die 610 clamping plates gold copper-base alloys 11 peripheral parts.Through this operation, the two sides side forms joint 61,71 in the table of baseplate part 2.
In the operation of Fig. 6, the sheet metal material 13 that is formed with joint 61,71 and inclined wall 52 is mounted on counterdie 700, the axial region 710 and the hub portion 3 of counterdie 700 is chimeric, thus, sheet metal material 13 is located with axial region 710.Then, shown in the right half part of this figure, make pressure die 800 and be provided in its last extrusion die 810 on every side and shown in arrow k, 1, descend, use pressure die 800 pushing baseplate parts 2, thus, use pressure die 800 and counterdie 700 crampings hold on baseplate part 2, simultaneously, use extrusion die 810 baseplate part 2 bendings are formed tube portion 5.
So, to having formed the sheet metal material 1 of joint 61,71 and tube portion 5, implement Fig. 3 and the illustrated tube portion forming process of Fig. 4.
In the tube portion forming process of present embodiment, be that face side and the rear side at baseplate part 2 forms joint 61,71 respectively, make junction surface 98,99 the radial engagement of these joints and rotating mould 9,9a side, so that make baseplate part 2 inactive at baseplate part 2.But, also can form the joint in the face side of baseplate part 2 or in the rear side either party, this joint is being engaged towards baseplate part 2 direction radially with the junction surface of rotating mould side, make baseplate part 2 inactive.In addition, above-mentioned bellying 8 is bloated in the face side of baseplate part 2 and form joint 61,71.
In addition, the centre bore 4 of baseplate part 2 also can only be the circular port that is opened in baseplate part 2 central authorities.
The possibility of industrial utilization
If adopt the tube section manufacturing process of the metal sheet with centre bore relevant with the present invention, Power when then with forming rolls the tube section of sheet metal material being pushed towards inside side, baseplate part footpath, by The joint of baseplate part is by the junction surface supporting of the rotating mould that is engaging with the joint, institute With, can because of the extruding of forming rolls impact not make the rotating mould side axial region chimeric sheet metal The peritreme section in material center hole is squeezed in axial region by brute force. Therefore, after tube section is shaped, also can The shape and size of centre bore etc. are remained on a precision before a section is shaped.
Claims (8)
1. the tube portion manufacturing process that has the metal sheet of centre bore, be supported in the aforesaid substrate portion that circular substrate portion has the sheet metal material of centre bore with rotating mould, simultaneously, being located at being fitted in the centre bore of sheet metal material on this rotating mould with the concentric axial region of axis of rotation, the sheet metal material is rotated on one side with rotating mould, to be connected with in the tube portion of baseplate part periphery with forming rolls on one side and inwardly push the side towards above-mentioned baseplate part footpath, its one is shaped; It is characterized in that, make be arranged on the rotating mould, overlap the junction surface at position with baseplate part and engage with joint on being arranged on this baseplate part, baseplate part can not moved radially.
2. the tube portion manufacturing process with metal sheet of centre bore as claimed in claim 1 is characterized in that, above-mentioned centre bore is the hole that is formed by the tubular hub portion that is connected with in baseplate part central authorities.
3. the tube portion manufacturing process with metal sheet of centre bore as claimed in claim 1, it is characterized in that, above-mentioned rotating mould adopts clamps the 1st rotating mould and the 2nd rotating mould of aforesaid substrate portion, on the 1st and the 2nd rotating mould both sides, the junction surface is set, make be separately positioned on baseplate part face side and rear side the joint respectively with the corresponding joint in above-mentioned each junction surface, thereby baseplate part can not moved radially.
4. the tube portion manufacturing process with metal sheet of centre bore as claimed in claim 2, it is characterized in that, above-mentioned rotating mould adopts the 1st rotating mould and the 2nd rotating mould of chucking substrate portion, on the 1st and the 2nd rotating mould both sides, the junction surface is set, make the joint and the corresponding joint in above-mentioned each junction surface that are located at baseplate part face side and rear side respectively, thereby baseplate part can not moved radially.
5. the tube portion manufacturing process with metal sheet of centre bore as claimed in claim 1 is characterized in that above-mentioned junction surface and joint are circular.
6. the tube portion manufacturing process with metal sheet of centre bore as claimed in claim 2 is characterized in that above-mentioned junction surface and joint are circular.
7. the tube portion manufacturing process with metal sheet of centre bore as claimed in claim 3 is characterized in that above-mentioned junction surface and joint are circular.
8. the tube portion manufacturing process with metal sheet of centre bore as claimed in claim 4 is characterized in that above-mentioned junction surface and joint are circular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96197459 CN1198691A (en) | 1996-08-05 | 1996-08-05 | Method of molding cylindrical portion of central bore-carrying sheet metal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96197459 CN1198691A (en) | 1996-08-05 | 1996-08-05 | Method of molding cylindrical portion of central bore-carrying sheet metal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1198691A true CN1198691A (en) | 1998-11-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96197459 Pending CN1198691A (en) | 1996-08-05 | 1996-08-05 | Method of molding cylindrical portion of central bore-carrying sheet metal |
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| Country | Link |
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| CN (1) | CN1198691A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100374224C (en) * | 2002-11-20 | 2008-03-12 | 赫斯工程股份有限公司 | Method and apparatus for spinning to a constant length |
| CN101041172B (en) * | 2006-03-20 | 2012-04-04 | 先技精工(日本)有限公司 | Manufacturing method and device of caulking-assembled part |
| CN102632138A (en) * | 2012-04-21 | 2012-08-15 | 西北工业大学 | Splitting spinning mold with retainer stages and determination method for retainer stages |
| CN107159767A (en) * | 2017-07-13 | 2017-09-15 | 芜湖西诺普汽车零部件科技有限公司 | A kind of lift wheel processing spinning tool |
| CN111250931A (en) * | 2020-02-13 | 2020-06-09 | 广东领丰汽车科技实业有限公司 | Manufacturing method of aluminum alloy automobile hub |
-
1996
- 1996-08-05 CN CN 96197459 patent/CN1198691A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100374224C (en) * | 2002-11-20 | 2008-03-12 | 赫斯工程股份有限公司 | Method and apparatus for spinning to a constant length |
| CN101041172B (en) * | 2006-03-20 | 2012-04-04 | 先技精工(日本)有限公司 | Manufacturing method and device of caulking-assembled part |
| CN102632138A (en) * | 2012-04-21 | 2012-08-15 | 西北工业大学 | Splitting spinning mold with retainer stages and determination method for retainer stages |
| CN102632138B (en) * | 2012-04-21 | 2014-05-14 | 西北工业大学 | Splitting spinning mold with retainer stages and determination method for retainer stages |
| CN107159767A (en) * | 2017-07-13 | 2017-09-15 | 芜湖西诺普汽车零部件科技有限公司 | A kind of lift wheel processing spinning tool |
| CN111250931A (en) * | 2020-02-13 | 2020-06-09 | 广东领丰汽车科技实业有限公司 | Manufacturing method of aluminum alloy automobile hub |
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