CN101648329A - Manufacturing process of aluminum alloy wheel - Google Patents

Manufacturing process of aluminum alloy wheel Download PDF

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Publication number
CN101648329A
CN101648329A CN200810041788A CN200810041788A CN101648329A CN 101648329 A CN101648329 A CN 101648329A CN 200810041788 A CN200810041788 A CN 200810041788A CN 200810041788 A CN200810041788 A CN 200810041788A CN 101648329 A CN101648329 A CN 101648329A
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CN
China
Prior art keywords
blank
spinning
wheel
aluminum alloy
alloy wheel
Prior art date
Application number
CN200810041788A
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Chinese (zh)
Inventor
罗锦荣
彭文生
Original Assignee
六和轻合金(昆山)有限公司
昆山六丰机械工业有限公司
Priority date (The priority date 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 date listed.)
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Priority to CN200810041788A priority Critical patent/CN101648329A/en
Publication of CN101648329A publication Critical patent/CN101648329A/en

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Abstract

The invention discloses a manufacturing process of an aluminum alloy wheel, which comprises the following steps: step 1) forming a casting blank in a low-pressure casting mode; step 2) forming a positioning hole on a spoke blank of the casting blank; step 3) preheating the casting blank by a first heating device; step 4) cooling the spoke blank of the casting blank; step 5) mounting the casting blank to a spinning machine; step 6) spinning a wheel rim blank of the casting blank by the spinning machine, heating the wheel rim blank by a second heating device to sufficiently ensure that the spinning temperature is not reduced and simultaneously the wheel rim blank keeps certain plasticity to control the deformation and the deforming speed of the wheel rim blank in the hot spinning process soas to obtain a crude product with good appearance and mechanical properties; and step 7) to step 9) performing heat treatment, mechanical processing and arrangement on the crude product so as to obtain the aluminum alloy wheel with low cost, light weight and good mechanical properties.

Description

Manufacturing process of aluminum alloy wheel
[technical field]
The invention relates to a kind of manufacturing process of aluminum alloy wheel, particularly relevant for a kind of casting spinning process of aluminum-alloy wheel.
[background technology]
Wheel relates to one of parts of automotive safety, can be divided into steel wheel and aluminum-alloy wheel, because aluminum-alloy wheel is compared with the steel wheel, many advantages such as that aluminum-alloy wheel has is in light weight, intensity big, the brake compensation performance is good, precision is high, thermal conductivity is good, automobile fuel consumption is low, so aluminum-alloy wheel has the prospect of using widely.The manufacture of common aluminum-alloy wheel can be divided into 6 classes such as forging, semi-solid casting (extrusion casint, liquid forging), low pressure casting, gravitational casting, counter-pressure casting, assembling, and wherein rigidity is the strongest, and what weight was the lightest is the forging mode.The so-called forging exactly (made the aluminium ingot of monoblock pressure and can be reached 1.6 * 107 Ns/square centimeter via the disposable extrusion modling of mould that weight reaches more than the kiloton, and cast member density has only 2.2 kilograms/cubic centimetre), can make the global density equalization of wheel like this, the strength of materials also improves much, has alleviated weight simultaneously.With 15 inches aluminum-alloy wheels is example, the product that the wheel manufacturers of specialty is produced, and weight can be controlled at the 4-5 kilogram, and compared with other manufacture, the forging mode can be light more than 40%, but manufacturing cost exceeds 3~5 times of castings, and price is surprising.Low pressure casting then is the mode of comparatively compromising, manufacture process is that aluminium is become liquid with other metal alloys with high temperature melting, and the in-mold molding that reinjects can reach high strength, light-weighted purpose like this, can control manufacturing cost again, be the main flow manufacturing process of great majority repacking now with wheel.
But the low pressure casting technical products can't satisfy the demand of large scale, high load capacity (motor bus, load-carrying vehicle) and high-end product market, especially there be big gap in domestic enterprise with comparing abroad in the manufacturing of large scale wheel, but not forging type production still belongs to blank than big wheel at home.At present, advanced forming technique is a spinning process and since the spinning aluminum vehicle wheel be not subjected to size constrained, product attractive in appearance, functional, safe, save factor such as material, and have bright development prospect.
Chinese invention patent discloses CN 101020286A number and discloses a kind of process of making integral automobile wheel, whole automotive wheel is to be raw material with a continuous casting steel billet, wipe forging, hot spinning, smart spinning, general rotary pressing processing to sop up liquid by heat, and become spoke and the wheel that fuses.As seen, existing spinning aluminum vehicle wheel is the manufacture that has adopted forging and spinning to combine.Although adopt the properties of product of this compound mode better, as preceding described,, be not suitable for extensive use, so the compound mode of forging and spinning has defect of high cost too because the Forging Technology cost is very high.
Therefore, be necessary to study a kind of new manufacturing process of aluminum alloy wheel, to overcome the defective that exists in the prior art.
[summary of the invention]
Main purpose of the present invention is to provide a kind of manufacturing process of aluminum alloy wheel, its technology is controlled product quality simply, easily, the aluminum-alloy wheel of being made gained by this technology has the advantages that cost is low, in light weight, mechanical strength is high, and owing to this technology can be avoided using the large-tonnage press device, thereby make aluminum-alloy wheel to be produced in enormous quantities.
Other purpose of the present invention and advantage can be further understood from the disclosed technical characterictic of the present invention.
For reaching above-mentioned purpose or other purpose, the present invention adopts following technical scheme: a kind of manufacturing process of aluminum alloy wheel includes following steps:
1) mode with low pressure casting forms a cast blank, and this cast blank includes wheel rim blank and the spoke blank that integrally casting is shaped;
2) on the spoke blank of cast blank, form a locating hole;
3) use the first heater preheating cast blank to the spinning temperature;
4) the spoke blank of cooling casting blank;
5) cast blank is mounted on the spinning machine, wherein spinning machine includes positioner, spinning block and spinning metal wheel, positioner clamping spoke blank, spinning block is pressed in the inwall of wheel rim blank, and the spinning metal wheel is to press on the outer wall of wheel rim blank;
6) by spinning machine the wheel rim blank of cast blank is carried out spinning, and use at least one group second heater that the wheel rim blank is heated simultaneously, can not reduce and remain in the scope of spinning temperature with the temperature of wheel rim blank in the process that remains on spinning, spinning can obtain a semifinished product in this way;
7) semifinished product is heat-treated;
8) semifinished product is carried out machined; And
9) semifinished product is carried out arranging process, and obtain the finished product aluminum-alloy wheel.
According to an embodiment, above-mentioned steps 6) spinning block in can rotate along the main shaft of spinning block together with cast blank, and the spinning metal wheel is then carried out spinning with preset program to the outer wall of wheel rim blank.And be to have adopted three group of second heater in step 6).
Compared to prior art, the manufacturing process of aluminum-alloy wheel of the present invention has used at least one group second heater that the wheel rim blank is heated, can not reduce with the spinning temperature in the abundant assurance spinning process, simultaneously can make that again the wheel rim blank keeps certain plasticity, thereby help controlling the deflection and the deformation velocity of wheel rim blank in the hot spinning process, have good profile quality and favorable mechanical performance to guarantee final finished.As seen, because the forming technique that manufacturing process of aluminum alloy wheel of the present invention has adopted casting to combine with spinning, its technology is controlled product quality simply, easily, the aluminum-alloy wheel of making gained by this technology has that cost is low, in light weight, the characteristics of satisfactory mechanical property, and owing to this technology can be avoided using the large-tonnage press device, thereby make aluminum-alloy wheel to be produced in enormous quantities.
[description of drawings]
Figure 1A is the Facad structure schematic diagram of the aluminum-alloy wheel of one embodiment of the invention.
Figure 1B is the cross-sectional view of the aluminum-alloy wheel after the A-A line shown in Figure 1A is cut open.
Fig. 2 A is the cast blank Facad structure schematic diagram of the aluminum-alloy wheel of one embodiment of the invention.
Fig. 2 B is the cast blank cross-sectional view of the aluminum-alloy wheel after the B-B line shown in Fig. 2 A is cut open.
Fig. 3 is the cross-sectional view that gets out locating hole on the cast blank shown in Fig. 2 B.
Fig. 4 is installed on the schematic diagram that carries out mould pressing on the spinning machine with the cast blank shown in Fig. 3.
Fig. 5 is the cross-sectional view of the cast blank shown in Fig. 3 being carried out spinning aluminum-alloy wheel semifinished product afterwards.
[specific embodiment]
The explanation of following each embodiment is graphic with reference to what add, can be in order to the specific embodiment of implementing in order to illustration the present invention.The direction term that the present invention mentioned, for example " interior ", " outward " etc. only are the directions with reference to annexed drawings.Therefore, the direction term of being mentioned in following examples of the present invention is to be used for illustrating the present invention, but not is used for limiting the present invention.
Please refer to the aluminum-alloy wheel finished product structural representation of the one embodiment of the invention shown in Figure 1A and Figure 1B, aluminum-alloy wheel 1 includes wheel rim 10 and spoke 20, it makes shaping by the mode that foundry engieering combines with rotary pressure technology, wheel rim 10 is the structures that are integral type with spoke 20, make aluminum-alloy wheel 1 have safe and reliable performance, can also be applied on the heavy-load transport vehicles.Wheel rim 10 has outer rim 11, bcad seats 12 and inboard wheel rim 13, and spoke 20 has a plurality of radial engraved structures 21, a plurality of bolt hole 22, centre bore 23, a plurality of slug hole 24, and an air nozzle hole 25.
The manufacturing process of aluminum-alloy wheel 1 may further comprise the steps:
1) mode with low pressure casting forms a cast blank 3, shown in Fig. 2 A and Fig. 2 B.This cast blank 3 includes wheel rim blank 30 and the spoke blank 40 that integrally casting is shaped, wherein spoke blank 40 has a plurality of radial engraved structure 41, one and is positioned at the conical bore 42 of spoke blank 40 centers, a plurality of half through hole 43 that is positioned at conical bore 42 peripheries, and a plurality of slug hole 44;
2) on spoke blank 40, form a locating hole 45, as shown in Figure 3.In the present embodiment, thus locating hole 45 is conical bore 42 to be processed a circular hole that forms by drilling machine or drilling machine;
3) use first heater (not shown), heating furnace for example, preheating cast blank 3 is to the spinning temperature.In the present embodiment, need be preheated between 280 ℃ to 380 ℃, be preferably and be preheated between 300 ℃ to 320 ℃;
4) cooling spoke blank 40.Because spoke blank 40 will be as the clamping face of cast blank 3 in following spinning process, that is to say when cast blank 3 is loaded on the following spinning machine 5 (as shown in Figure 4), clamping device 50 these spoke blanks 40 of meeting clamping on the spinning machine 5 are to spinning block 51, so must cool off spoke blank 40, to prevent clamping position (being spoke blank 40) distortion.In the present embodiment, spoke blank 40 needs cooling can then carry out following steps in 5~10 seconds;
5) cast blank 3 is mounted on the spinning machine 5, as shown in Figure 4.In the present embodiment, spinning machine 5 includes clamping device 50, spinning block 51 and spinning metal wheel 52.In the present embodiment, clamping device 50 is anchor clamps, and these anchor clamps are connected on the push rod 53 of spinning machine 5,40 of spoke blanks by this clamp to spinning block 51; Spinning block 51 is to be connected on the transmission/control system 54 of spinning machine 5, and spinning block 51 is nested with and is pressed in the inwall of wheel rim blank 30; Spinning metal wheel 52 is the outer walls that press on wheel rim blank 30;
6) the wheel rim blank 30 by 5 pairs of cast blanks 3 of spinning machine carries out spinning, and use 6 pairs of wheel rim blanks 30 of at least one group second heater to heat simultaneously, can not reduce and remain in the scope (for example 300~320 ℃) of spinning temperature with the temperature of wheel rim blank 30 in the process that remains on spinning, spinning can obtain a semifinished product 7 in this way, as Fig. 4 and shown in Figure 5.In the spinning process of present embodiment, spinning block 51 can be with cast blank 3 to rotate along main shaft together, spinning metal wheel 52 is then carried out spinning with preset program to the outer wall of wheel rim blank 30, make the wall thickness of wheel rim blank 30 and the requirement that shape all reaches semifinished product 7, for example spinning metal wheel 52 is to be displaced on the outer wall of wheel rim blank 30 along certain curve, and, finish spinning process with safety along with wheel rim blank 30 backward rotation.In the present embodiment, second heater 6 is automatic ignitors, and present embodiment also adopted second heater 6 of three groups of quantity, can not reduce with abundant assurance spinning temperature, can make wheel rim blank 30 keep certain plasticity simultaneously again;
7) semifinished product 7 is carried out solid solution and artificial aging heat treatment, to improve the mechanical performance of entire product;
8) semifinished product 7 is carried out machined, for example on semifinished product 7, process a valve 25 (shown in Figure 1B), utilize lathe or drilling machine that locating hole 44 on the spoke blank 40 shown in Fig. 5 and half through hole 43 are processed for another example, its shape and diameter dimension are met the requirements, locating hole 44 among Fig. 5 is shaped as the centre bore 23 shown in Figure 1B after machined, and half through hole 43 among Fig. 5 is shaped as the bolt hole 22 shown in Figure 1B after machined, and slug hole 44 shapes among Fig. 5 are identical with the shape of the slug hole 24 of finished product shown in Figure 1B;
9) semifinished product 7 is carried out arranging process, and obtain finished product aluminum-alloy wheel 1 (shown in Figure 1B), for example the wheel rim 70 to semifinished product 7 carries out shaping, semifinished product 7 is carried out surface treatment (as polishing, plating or application etc.);
10) performance test for example applies certain bearing capacity to aluminum-alloy wheel 1 and carries out fatigue and burn-in test.
By above description as can be known, in the manufacturing process of aluminum-alloy wheel of the present invention, used 6 pairs of wheel rim blanks 30 of at least one group second heater to heat, can not reduce with the spinning temperature in the abundant assurance spinning process, can make simultaneously wheel rim blank 30 keep certain plasticity again, thereby help controlling the hot spinning process, for example can be controlled at the deflection and the deformation velocity of the wheel rim blank 30 in the hot spinning process easily, have good profile quality and favorable mechanical performance to guarantee final finished.As seen, because the forming technique that manufacturing process of aluminum alloy wheel of the present invention has adopted casting to combine with spinning, its technology is controlled product quality simply, easily, the aluminum-alloy wheel 1 of making gained by this technology has that cost is low, in light weight, the characteristics of satisfactory mechanical property, and owing to this technology can be avoided using the large-tonnage press device, thereby make aluminum-alloy wheel 1 to be produced in enormous quantities.

Claims (9)

1. manufacturing process of aluminum alloy wheel is characterized in that: include following steps:
1) mode with low pressure casting forms a cast blank, and this cast blank includes wheel rim blank and the spoke blank that integrally casting is shaped;
2) on the spoke blank of cast blank, form a locating hole;
3) use the first heater preheating cast blank to the spinning temperature;
4) the spoke blank of cooling casting blank;
5) cast blank is mounted on the spinning machine, wherein spinning machine includes positioner, spinning block and spinning metal wheel, positioner clamping spoke blank, spinning block is pressed in the inwall of wheel rim blank, and the spinning metal wheel is to press on the outer wall of wheel rim blank;
6) by spinning machine the wheel rim blank of cast blank is carried out spinning, and use at least one group second heater that the wheel rim blank is heated simultaneously, can not reduce and remain in the scope of spinning temperature with the temperature of wheel rim blank in the process that remains on spinning, spinning can obtain a semifinished product in this way;
7) semifinished product is heat-treated;
8) semifinished product is carried out machined; And
9) semifinished product is carried out arranging process, and obtain the finished product aluminum-alloy wheel.
2. manufacturing process of aluminum alloy wheel as claimed in claim 1, it is characterized in that: the spoke blank that forms in the step 1) has a plurality of radial engraved structures, a conical bore that is positioned at spoke blank center, and a plurality of bolt hole that is positioned at the conical bore periphery.
3. manufacturing process of aluminum alloy wheel as claimed in claim 2 is characterized in that: step 2) in the locating hole that forms be conical bore to be processed a boring that forms by drilling machine or drilling machine.
4. manufacturing process of aluminum alloy wheel as claimed in claim 1 is characterized in that: the spinning temperature described in the step 3) is between 280 to 380 ℃.
5. manufacturing process of aluminum alloy wheel as claimed in claim 1 is characterized in that: the spinning block in the step 6) can rotate along the main shaft of spinning block together with cast blank, and the spinning metal wheel is then carried out spinning with preset program to the outer wall of wheel rim blank.
6. manufacturing process of aluminum alloy wheel as claimed in claim 1 is characterized in that: adopted three group of second heater in the step 6).
7. manufacturing process of aluminum alloy wheel as claimed in claim 1 is characterized in that: need utilize lathe or drilling machine to process at locating hole on the spoke blank and periphery hole in the step 8), its shape and diameter dimension are met the requirements.
8. manufacturing process of aluminum alloy wheel as claimed in claim 1 is characterized in that: the arranging process in the step 9) comprises that the wheel rim to semifinished product carries out shaping, semifinished product is carried out surface treatment.
9. manufacturing process of aluminum alloy wheel as claimed in claim 1 is characterized in that: this manufacturing process of aluminum alloy wheel also includes step 10), and step 10) is that aluminum-alloy wheel is carried out performance test.
CN200810041788A 2008-08-15 2008-08-15 Manufacturing process of aluminum alloy wheel CN101648329A (en)

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Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101797611A (en) * 2010-03-16 2010-08-11 买联合 Spoke molding method and device
CN102166599A (en) * 2011-01-16 2011-08-31 中信戴卡轮毂制造股份有限公司 Lower die device for improved spinning dies
CN102189224A (en) * 2010-03-02 2011-09-21 旭技术株式会社 Wheel for vehicle and manufacturing method thereof
CN102274885A (en) * 2011-08-09 2011-12-14 中信戴卡轮毂制造股份有限公司 Aluminum wheel hot spinning process
CN102343404A (en) * 2010-08-04 2012-02-08 六和轻合金(昆山)有限公司 Manufacturing device of aluminum alloy wheel
CN102581103A (en) * 2011-09-29 2012-07-18 中信戴卡轮毂制造股份有限公司 Improved spinning method for aluminum wheels
CN102744573A (en) * 2012-07-12 2012-10-24 中信戴卡股份有限公司 Aluminum alloy wheel manufacturing method
CN103659164A (en) * 2012-09-06 2014-03-26 黄石鑫华轮毂有限公司 Automobile aluminum alloy rim machining technology
CN104428102A (en) * 2013-03-04 2015-03-18 丁玉武 Car steel ring spoke production and manufacture process and specific mould thereof
CN104439909A (en) * 2014-09-11 2015-03-25 连云港宝石精密重工科技有限公司 Aluminum alloy hub forging method
CN104439977A (en) * 2014-12-03 2015-03-25 北京航星机器制造有限公司 Rapid manufacturing method of symmetric apron board type casting aluminum alloy parts
WO2016026261A1 (en) * 2014-08-20 2016-02-25 上海兴浦旋压车轮有限公司 Integrated plate welded-joint-free vehicle wheel and forming method thereof
CN106311848A (en) * 2016-11-08 2017-01-11 浙江跃岭股份有限公司 Rotary pressing technology for high-strength lightweight aluminum alloy hub
CN106424406A (en) * 2016-12-26 2017-02-22 安庆迪力机械铸造有限公司 Heating spinning flaring device
CN106825232A (en) * 2016-11-25 2017-06-13 天津那诺机械制造有限公司 The mould and its method of work of a kind of direct rotary press modelling of cast aluminium alloy gold wheel hub blank
CN108381301A (en) * 2018-03-27 2018-08-10 大亚车轮制造有限公司 A kind of production method of full wire drawing aluminum-alloy wheel
CN108971903A (en) * 2018-08-15 2018-12-11 芜湖西诺普汽车零部件科技有限公司 A kind of method that wheel is made in wheel spoke barrel wheel compacting
US10919083B2 (en) * 2018-03-19 2021-02-16 Citic Dicastal Co., Ltd. Process for manufacturing aluminum alloy wheel

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102189224B (en) * 2010-03-02 2015-04-29 旭技术株式会社 Wheel for vehicle and manufacturing method thereof
CN102189224A (en) * 2010-03-02 2011-09-21 旭技术株式会社 Wheel for vehicle and manufacturing method thereof
CN101797611A (en) * 2010-03-16 2010-08-11 买联合 Spoke molding method and device
CN101797611B (en) * 2010-03-16 2012-08-29 买联合 Spoke molding method and device
CN102343404A (en) * 2010-08-04 2012-02-08 六和轻合金(昆山)有限公司 Manufacturing device of aluminum alloy wheel
CN102166599A (en) * 2011-01-16 2011-08-31 中信戴卡轮毂制造股份有限公司 Lower die device for improved spinning dies
CN102274885A (en) * 2011-08-09 2011-12-14 中信戴卡轮毂制造股份有限公司 Aluminum wheel hot spinning process
CN102581103A (en) * 2011-09-29 2012-07-18 中信戴卡轮毂制造股份有限公司 Improved spinning method for aluminum wheels
CN102744573A (en) * 2012-07-12 2012-10-24 中信戴卡股份有限公司 Aluminum alloy wheel manufacturing method
CN103659164A (en) * 2012-09-06 2014-03-26 黄石鑫华轮毂有限公司 Automobile aluminum alloy rim machining technology
CN104428102A (en) * 2013-03-04 2015-03-18 丁玉武 Car steel ring spoke production and manufacture process and specific mould thereof
WO2016026261A1 (en) * 2014-08-20 2016-02-25 上海兴浦旋压车轮有限公司 Integrated plate welded-joint-free vehicle wheel and forming method thereof
CN104439909A (en) * 2014-09-11 2015-03-25 连云港宝石精密重工科技有限公司 Aluminum alloy hub forging method
CN104439977A (en) * 2014-12-03 2015-03-25 北京航星机器制造有限公司 Rapid manufacturing method of symmetric apron board type casting aluminum alloy parts
CN106311848A (en) * 2016-11-08 2017-01-11 浙江跃岭股份有限公司 Rotary pressing technology for high-strength lightweight aluminum alloy hub
CN106825232A (en) * 2016-11-25 2017-06-13 天津那诺机械制造有限公司 The mould and its method of work of a kind of direct rotary press modelling of cast aluminium alloy gold wheel hub blank
CN106424406A (en) * 2016-12-26 2017-02-22 安庆迪力机械铸造有限公司 Heating spinning flaring device
US10919083B2 (en) * 2018-03-19 2021-02-16 Citic Dicastal Co., Ltd. Process for manufacturing aluminum alloy wheel
CN108381301A (en) * 2018-03-27 2018-08-10 大亚车轮制造有限公司 A kind of production method of full wire drawing aluminum-alloy wheel
CN108971903A (en) * 2018-08-15 2018-12-11 芜湖西诺普汽车零部件科技有限公司 A kind of method that wheel is made in wheel spoke barrel wheel compacting

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Application publication date: 20100217