CN109128701A - A kind of wheel hub spinning pushing technique - Google Patents

A kind of wheel hub spinning pushing technique Download PDF

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Publication number
CN109128701A
CN109128701A CN201811020182.3A CN201811020182A CN109128701A CN 109128701 A CN109128701 A CN 109128701A CN 201811020182 A CN201811020182 A CN 201811020182A CN 109128701 A CN109128701 A CN 109128701A
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CN
China
Prior art keywords
spinning
wheel
technique
pushes
wheel hub
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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
Application number
CN201811020182.3A
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Chinese (zh)
Inventor
骆耀斌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ANHUI STRONG AUTO PARTS Co Ltd
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ANHUI STRONG AUTO PARTS Co Ltd
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.)
Filing date
Publication date
Application filed by ANHUI STRONG AUTO PARTS Co Ltd filed Critical ANHUI STRONG AUTO PARTS Co Ltd
Priority to CN201811020182.3A priority Critical patent/CN109128701A/en
Publication of CN109128701A publication Critical patent/CN109128701A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00Making specific metal objects by operations not covered by a single other subclass or a group in this subclass

Abstract

The present invention relates to wheel hub processing technology fields, more particularly to a kind of wheel hub spinning pushes technique, the following steps are included: low pressure casting: metal former material is cleaned up, it is put into boiler, it is melted at 700-1200 DEG C, metal liquid is pressed into sealed mold with air, cooling 30-60s obtains spinning idiosome;Rotary press modelling: then spinning idiosome is fixed on spinning machine by the spinning idiosome the pre-heat treatment that will be obtained, and the spinning roller of spinning machine carries out spinning to both ends along wheel rim precursor and push operation since the centre of side wheel rim precursor, cooling, obtains pushing wheel semi-finished product;Heat treatment: heat treatment process is carried out to pushing after molding wheel semi-finished product;Machining: to hub surface, screw hole carries out retrofit, obtains finished product.Of the invention is preferentially: this production efficiency is high, and technique plasticity is strong, the wheel hub light weight obtained by this technique, and intensity is high, stable mechanical performance.

Description

A kind of wheel hub spinning pushing technique
Technical field
The present invention relates to wheel hub processing technology fields more particularly to a kind of wheel hub spinning to push technique.
Background technique
The wheel hub of automobile, car or truck must expect that rate is relatively low using casting or forging molding, material.Casting hub has Stomata has pollution, working environment severe to environment.Forged hub is all that first embryo processed machines again, wastes material, and process compares It is more, higher cost.Currently, manufacture wheel hub is largely to saw material, heating, forging, trimming, heat treatment, surface by rough forging Processing, obtains material rate between 40%~50%.Spinning process technology (FlowForming) is led under specific pressure and temperature Lasting rotary motion and squeezing action are crossed, the structure at wheel hub wheel rim position is constantly extended in the rolling process.Spinning wheel Hub can greatly reduce the thickness of material, also just alleviate hub weight while guaranteeing sufficient intensity.Application No. is The patent of CN201810045723.1, using being forged into embryo, the mode of rotary press modelling, to improve the tissue density and just of product Property, shorten the production cycle, however technique main body is still forged, and supplemented by spinning, production cost is higher, the production cycle compared to spinning compared with It is long.
Summary of the invention
In view of the above problems, the present invention proposes that a kind of wheel hub spinning pushes technique, using casting come embryo processed, rotary press modelling, Production cost is low, high production efficiency and wheel hub more excellent performance.
In order to achieve the above object, the present invention is realized by following scheme: a kind of wheel hub spinning pushing technique, including it is following Step:
(a) low pressure casting: metal former material being cleaned up, boiler is put into, and is melted at 700-1200 DEG C, with air by molten metal Body is pressed into sealed mold, and cooling 30-60s obtains spinning idiosome;
(b) rotary press modelling: then spinning idiosome is fixed on spinning machine, spinning machine by the spinning idiosome the pre-heat treatment that will be obtained Spinning roller since the centre of side wheel rim precursor, carry out spinning to both ends along wheel rim precursor and push operation, it is cooling, pushed Take turns semi-finished product;
(c) it is heat-treated: heat treatment process is carried out to pushing after molding wheel semi-finished product;
(d) machine: to hub surface, screw hole carries out retrofit, obtains finished product.
Preferably, the spinning machine includes symmetrical spinning roller, synchronizes and processes to spinning idiosome.
Preferably, the spinning idiosome includes spoke and the wheel rim precursor that the spoke Zhou Duan is arranged in.
Preferably, the wheel rim precursor is in upper and lower symmetrical structure, and wheel rim is extended from the middle to both ends by the wheel rim precursor It forms.
Preferably, the wheel rim for pushing wheel semi-finished product is with a thickness of 2mm-4mm.
Preferably, the revolving speed of the spinning roller is 4000-6000r/min.
Preferably, the reduction of the rotary press modelling is 40-50%.
Preferably, the rotary press modelling operates at room temperature.
Preferably, the heat treatment includes: higher temperature solid solution: keeping the temperature 2-5h at 350-465 DEG C;Hardening processing: Water cooling in warm water at 60-80 DEG C;Low temperature aging processing: 3-7h is placed at room temperature.
Preferably, the temperature of the spinning idiosome preheating is 280-500 DEG C, time 0.5-1h.
The present invention manufactures wheel hub at embryo, then the mode of rotary press modelling using first low pressure casting, and low pressure casting does not need riser, The utilization rate of metal liquid can be improved, while casting structure is fine and close, good mechanical property obtains spinning idiosome after cooling, revolving Before press operation, preheated first, by spread under high temperature eliminate or reduce under practical crystallization condition transgranular uneven components with The structural state for deviating from balance, improves the processing performance and service performance of metal material, and spinning idiosome side is similar dumbbell Shape, the spoke of interlude provides that monosymmetric spinning roller pushes (rotation from wheel rim precursor interlude to both ends by spinning machine Pressure stretches) operation, wheel rim precursor extends form wheel rim under pressure, have again more while obtaining thinner wheel rim thickness Good intensity and toughness, the present invention control the reduction of rotary press modelling in 25-30%, and reduction is excessive to will cause casting material Easily there is peeling in flow unstable accumulation, surface, and too small that thickness of workpiece deformation can be caused uneven, workpiece surface deformation is insufficient. Casting is heat-treated after rotary press modelling, higher temperature solid solution and hardening handle the intensity and modeling that aluminium alloy can be improved Shape dissolves various phases in alloy sufficiently, Intensive intervention body, and improves toughness and etch resistant properties, eliminates stress and softening, is convenient for Continue to process and form;The intensity and hardness of casting can be improved in low temperature aging processing, improves the mechanical performance of casting.
Of the invention is preferentially: this production efficiency is high, and technique plasticity is strong, the wheel hub matter obtained by this technique Amount is light, and intensity is high, stable mechanical performance.
Detailed description of the invention
Attached drawing 1 is process schematic representation of the invention;
1- spoke, 2- wheel rim precursor, 3- wheel rim, 4- spinning roller, 5- spinning idiosome, 6- push wheel semi-finished product.
Specific embodiment
This specific implementation method is only explanation of the invention, is not limitation of the present invention.Those skilled in the art Member's any change made after having read specification of the invention, as long as within the scope of the claims, it all will be by To the protection of Patent Law.
Embodiment 1:
As shown in Fig. 1, a kind of wheel hub spinning pushes technique, comprising the following steps:
(a) low pressure casting: metal former material being cleaned up, boiler is put into, and is melted at 700 DEG C, with air by metal liquid pressure Enter into sealed mold, cooling 30s obtains spinning idiosome 5, including spoke 1 and the wheel rim precursor that 1 week end of the spoke is arranged in 2, the wheel rim precursor 2 is in upper and lower symmetrical structure, and wheel rim 3 is extended from the middle to both ends by the wheel rim precursor 2;
(b) rotary press modelling: 5 the pre-heat treatment of spinning idiosome that will be obtained, the temperature of preheating are 280 DEG C, time 1h, then will wheel Spoke 1 is fixed on spinning machine, and wheel hub itself rotates under spinning machine drive around axis 8, and spinning machine includes symmetrical spinning roller 4, it synchronizes and is processed at left and right sides of spinning idiosome 5, spinning roller revolving speed is 4000r/min, and spinning roller 4 is from side wheel rim precursor 2 Centre starts, and carries out spinning to both ends along wheel rim precursor 2 and pushes operation, cooling, obtains pushing wheel semi-finished product 6, wheel rim 3 with a thickness of 2mm, reduction 40%;
(c) it is heat-treated: heat treatment process being carried out to pushing after molding wheel semi-finished product 6, comprising: higher temperature solid solution: at 350 DEG C Lower heat preservation 5h;Hardening processing: the water cooling in warm water at 60 DEG C;Low temperature aging processing: 3h is placed at room temperature.;
(d) machine: to hub surface, screw hole carries out retrofit, obtains finished product.
Embodiment 2:
A kind of wheel hub spinning pushing technique, comprising the following steps:
(a) low pressure casting: metal former material being cleaned up, boiler is put into, and is melted at 1000 DEG C, with air by metal liquid pressure Enter into sealed mold, cooling 50s obtains spinning idiosome 5, including spoke 1 and the wheel rim precursor that 1 week end of the spoke is arranged in 2, the wheel rim precursor 2 is in upper and lower symmetrical structure, and wheel rim 3 is extended from the middle to both ends by the wheel rim precursor 2;
(b) rotary press modelling: 5 the pre-heat treatment of spinning idiosome that will be obtained, the temperature of preheating are 400 DEG C, time 0.8h, then will Spoke 1 is fixed on spinning machine, and wheel hub itself rotates under spinning machine drive around axis 8, and spinning machine includes symmetrical rotation Wheel 4, synchronizes and processes at left and right sides of spinning idiosome 5, and spinning roller revolving speed is 5000r/min, and spinning roller 4 is from side wheel rim precursor 2 Centre start, carry out spinning to both ends along wheel rim precursor 2 and push operation, it is cooling, obtain pushing wheel semi-finished product 6,3 thickness of wheel rim For 3mm, reduction 45%;
(c) it is heat-treated: heat treatment process being carried out to pushing after molding wheel semi-finished product 6, comprising: higher temperature solid solution: at 400 DEG C Lower heat preservation 3h;Hardening processing: the water cooling in warm water at 70 DEG C;Low temperature aging processing: 5h is placed at room temperature.;
(d) machine: to hub surface, screw hole carries out retrofit, obtains finished product.
Embodiment 3:
A kind of wheel hub spinning pushing technique, comprising the following steps:
(a) low pressure casting: metal former material being cleaned up, boiler is put into, and is melted at 1200 DEG C, with air by metal liquid pressure Enter into sealed mold, cooling 60s obtains spinning idiosome 5, including spoke 1 and the wheel rim precursor that 1 week end of the spoke is arranged in 2, the wheel rim precursor 2 is in upper and lower symmetrical structure, and wheel rim 3 is extended from the middle to both ends by the wheel rim precursor 2;
(b) rotary press modelling: 5 the pre-heat treatment of spinning idiosome that will be obtained, the temperature of preheating are 500 DEG C, time 0.5h, then will Spoke 1 is fixed on spinning machine, and wheel hub itself rotates under spinning machine drive around axis 8, and spinning machine includes symmetrical rotation Wheel 4, synchronizes and processes at left and right sides of spinning idiosome 5, and spinning roller revolving speed is 6000r/min, and spinning roller 4 is from side wheel rim precursor 2 Centre start, carry out spinning to both ends along wheel rim precursor 2 and push operation, it is cooling, obtain pushing wheel semi-finished product 6,3 thickness of wheel rim For 4mm, reduction 50%;
(c) it is heat-treated: heat treatment process being carried out to pushing after molding wheel semi-finished product 6, comprising: higher temperature solid solution: at 465 DEG C Lower heat preservation 5h;Hardening processing: the water cooling in warm water at 80 DEG C;Low temperature aging processing: 7h is placed at room temperature.;
(d) machine: to hub surface, screw hole carries out retrofit, obtains finished product.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.

Claims (10)

1. a kind of wheel hub spinning pushes technique, which comprises the following steps:
Low pressure casting: metal former material being cleaned up, boiler is put into, and is melted at 700-1200 DEG C, with air by metal liquid It is pressed into sealed mold, cooling 30-60s obtains spinning idiosome;
Rotary press modelling: then spinning idiosome is fixed on spinning machine, the rotation of spinning machine by the spinning idiosome the pre-heat treatment that will be obtained Wheel carries out spinning to both ends along wheel rim precursor and pushes operation since the centre of side wheel rim precursor, cooling, obtains pushing wheel half Finished product;
Heat treatment: heat treatment process is carried out to pushing after molding wheel semi-finished product;
Machining: to hub surface, screw hole carries out retrofit, obtains finished product.
2. a kind of wheel hub spinning according to claim 1 pushes technique, it is characterised in that: the spinning machine includes left and right pair The spinning roller of title is synchronized and is processed to spinning idiosome.
3. a kind of wheel hub spinning according to claim 1 pushes technique, it is characterised in that: the spinning idiosome includes spoke With the wheel rim precursor that the spoke Zhou Duan is arranged in.
4. a kind of wheel hub spinning according to claim 1 pushes technique, it is characterised in that: the wheel rim precursor is in right up and down Claim structure, wheel rim is extended from the middle to both ends by the wheel rim precursor.
5. a kind of wheel hub spinning according to claim 1 pushes technique, it is characterised in that: the wheel for pushing wheel semi-finished product Rim is with a thickness of 2mm-4mm.
6. a kind of wheel hub spinning according to claim 1 pushes technique, it is characterised in that: the revolving speed of the spinning roller is 4000-6000r/min。
7. a kind of wheel hub spinning according to claim 1 pushes technique, it is characterised in that: the reduction of the rotary press modelling For 40-50%.
8. a kind of wheel hub spinning according to claim 1 pushes technique, it is characterised in that: the rotary press modelling is at room temperature Operation.
9. a kind of wheel hub spinning according to claim 1 pushes technique, it is characterised in that: the heat treatment includes: high temperature Solution treatment: 2-5h is kept the temperature at 350-465 DEG C;Hardening processing: the water cooling in warm water at 60-80 DEG C;Low temperature aging processing: 3-7h is placed at room temperature.
10. a kind of wheel hub spinning according to claim 1 pushes technique, it is characterised in that: the spinning idiosome preheating Temperature is 280-500 DEG C, time 0.5-1h.
CN201811020182.3A 2018-09-03 2018-09-03 A kind of wheel hub spinning pushing technique Pending CN109128701A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811020182.3A CN109128701A (en) 2018-09-03 2018-09-03 A kind of wheel hub spinning pushing technique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811020182.3A CN109128701A (en) 2018-09-03 2018-09-03 A kind of wheel hub spinning pushing technique

Publications (1)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2319509A1 (en) * 1975-08-01 1977-02-25 Durand Francois Wheel hub with reduction gearing - rotates on solid axle casing and has crown ring with planet link to pinion on drive shaft end
US6149244A (en) * 1998-05-29 2000-11-21 Consolidated Metco Inc. Wheel hub assembly and method of installing a hub on an axle
CN1739911A (en) * 2005-09-23 2006-03-01 嘉兴市四通车轮制造有限公司 No-seam steel felly making process
CN103056611A (en) * 2012-12-20 2013-04-24 河北立中有色金属集团有限公司 Magnesium alloy automobile hub casting spinning compound molding method
CN104117656A (en) * 2014-07-14 2014-10-29 内蒙古华唐都瑞轮毂有限公司 Low-pressure side-casting spinning process for aluminum alloy hub suitable for exclusive truck and bus
CN104128743A (en) * 2014-06-16 2014-11-05 内蒙古华唐都瑞轮毂有限公司 Low-pressure cast spinning short process of aluminum alloy hubs

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2319509A1 (en) * 1975-08-01 1977-02-25 Durand Francois Wheel hub with reduction gearing - rotates on solid axle casing and has crown ring with planet link to pinion on drive shaft end
US6149244A (en) * 1998-05-29 2000-11-21 Consolidated Metco Inc. Wheel hub assembly and method of installing a hub on an axle
CN1739911A (en) * 2005-09-23 2006-03-01 嘉兴市四通车轮制造有限公司 No-seam steel felly making process
CN103056611A (en) * 2012-12-20 2013-04-24 河北立中有色金属集团有限公司 Magnesium alloy automobile hub casting spinning compound molding method
CN104128743A (en) * 2014-06-16 2014-11-05 内蒙古华唐都瑞轮毂有限公司 Low-pressure cast spinning short process of aluminum alloy hubs
CN104117656A (en) * 2014-07-14 2014-10-29 内蒙古华唐都瑞轮毂有限公司 Low-pressure side-casting spinning process for aluminum alloy hub suitable for exclusive truck and bus

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Application publication date: 20190104