CN101912944A - Method for machining aluminum alloy hub - Google Patents
Method for machining aluminum alloy hub Download PDFInfo
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- CN101912944A CN101912944A CN 201010242759 CN201010242759A CN101912944A CN 101912944 A CN101912944 A CN 101912944A CN 201010242759 CN201010242759 CN 201010242759 CN 201010242759 A CN201010242759 A CN 201010242759A CN 101912944 A CN101912944 A CN 101912944A
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Abstract
The invention discloses a method for machining an aluminum alloy hub. The method mainly comprises the following steps of: taking a semi-solid alloy thixoformed bar stock as a manufacturing material; remelting and heating the bar stock to the temperature of 585 +/-10 DEG C in an electromagnetic induction heating furnace; spraying a lubricant in a spoke molding mould before forging and pressing; putting the heated bar stock into a lower mould; pushing an upper mould to perform closed extrusion downwards by using a 20MN-hydraulic machine; keeping a pressure for 5 to 10 seconds; ejecting a forge piece out by using a lower ejector rod; expanding the forge piece by putting the forge piece into a small-tonnage press machine; after putting the forge piece into the lower mould of a spinning mould, closely pressing the forge piece on the lower mould; driving the lower mould and the upper mould to rotate integrally at a high speed by using a motor at the bottom of a spinning machine; and spinning three rotating wheels of the spinning machine downwards from the side surface of the forge piece so as to finish hub molding of the forge piece. The method has the characteristics of low tonnage of required equipment, less forging processes, low energy consumption, low forge piece cost and long mould service life.
Description
Technical field the present invention relates to the forming method of a kind of method of metal forming, particularly wheel hub.
The background technology aluminium alloy wheel hub is the vitals on the car, because the importance of its geometric complexity and serviceability, thereby has increased the difficulty of its forging and molding.At present, the process for making of aluminium alloy wheel hub routine is: (1) adopts the wrought aluminium alloy bar is manufactured materials; (2) the aluminium alloy bar is heated to about 480 ℃; (3) on the forcing press of swaging, carry out prefabricated bad; (4) blocking on the 40MN hotdie forging press; (5) finish-forging is shaped on an other 40MN hotdie forging press; (6) enlarging is cut edge on baby press; (7) last mould pressing at the enterprising road wheel rim of spinning machine.Though the aluminium alloy wheel hub that this method is produced has mechanical property preferably, stock utilization can reach 55%, needs expensive large-tonnage hotdie forging press, complex procedures, and energy consumption is big, forging cost height, the mould load is big, the life-span is low.
Summary of the invention the object of the present invention is to provide that a kind of equipment needed thereby tonnage is low, forging process is few, the processing method of less energy consumption, the forging cost is low, die life is long aluminium alloy wheel hub.The present invention adopts the semi-solid die casting material, add and man-hour this semisolid bar is carried out the remelting heating, on the 20MN forcing press, carry out forging and molding, the shaping spoke part, on baby press, carry out enlarging again, be shaped at the enterprising road wheel rim of spinning machine then.
Concrete grammar is as follows:
1, raw material remelting heating: adopt the manufactured materials of semi-solid alloy thixotropic forming bar, and this bar is put into electromagnetic induction heating furnace carry out remelting and be heated to 585 ℃ ± 10 ℃ as aluminium alloy wheel hub.
2, spoke part is shaped:
(1) mould: this spoke mould mainly is made up of Upper Die-sleeve, patrix, upper bolster, last ejector beam, lower die-sleeve, counterdie, die shoe, bottom knockout bar and securing member.Wherein, upper shed grooved lower die-sleeve bottom is fixed on the die shoe by securing member, be positioned at the counterdie of above-mentioned grooved lower die-sleeve, its lower end also is fixed on the die shoe by securing member, be provided with the bottom knockout bar in addition in the central through hole of die shoe and counterdie, this counterdie working face is corresponding with wheel hub spoke front and center flange; The limit, upper end of annular Upper Die-sleeve is fixed on the upper bolster by securing member, be positioned at the patrix of above-mentioned annular Upper Die-sleeve, its upper end also is fixed on the upper bolster by securing member, in the central through hole of upper bolster and patrix, be provided with ejector beam in addition, this patrix working face is not only corresponding with the wheel hub spoke back side and center flange, and is roughly corresponding with the wheel rim part again simultaneously.
(2) forging and pressing: before the forging and pressing work, upper die and lower die separate, spraying lubricant on die-face, the above-mentioned cylindrical bar that heats is put into counterdie, promote patrix with 20MN hydraulic press top hydraulic cylinder and carry out Closed Extrusion downwards, and pressurize 5～10 seconds, patrix opened afterwards, by the bottom knockout bar forging is ejected, finish the shaping at positive shaping of wheel hub spoke and center flange, the spoke back side and the preform of spoke window position and wheel rim part.
3, enlarging operation: take out above-mentioned forging, put on the enlarging forcing press of little tonnage and finish above-mentioned forging enlarging.
4, mould pressing:
(1) mould: this mould pressing mould mainly is made up of die shoe, counterdie, ejector, backstay, material returned holder and patrix and connecting rod.Wherein, upper shed circular groove shape counterdie bottom links to each other with die shoe by securing member, and the counterdie side is corresponding with the wheel rim shape.The material returned jacking portion corresponding with the counterdie upper shed is provided with the center slotted eye corresponding with wheel hub, the evagination anchor ring that this material returned filler ring shape end face and counterdie end face are formed, and its curvature is corresponding with wheel hub spoke back surface curvature.Be provided with central through hole at above-mentioned die shoe, counterdie middle part, establish the ejector corresponding in it with it, vertical backstay lower end links to each other with ejector, the central through hole of material returned holder is passed in the upper end, place in the central through hole of patrix, this time working face links to each other with connecting rod with its upper end of the positive corresponding patrix of wheel hub spoke.
(2) spinning: upper and lower mould is in released state before the spinning, after forging is put on the counterdie, last hydraulic cylinder promotes patrix downwards, forging is pressed on the counterdie, the whole rotation at a high speed of the bottom motor drives upper and lower mould of spinning machine afterwards, 3 spinning rollers of spinning machine spin down from the forging side, the wheel rim of finally finishing forging is shaped, upwards promote material returned holder by ejector afterwards, forging is ejected from counterdie, all operation finishes.
The present invention compared with prior art has following advantage:
1, be semi-solid alloy thixotropic forming bar owing to what adopt, has good thixotropy, when the remelting of semisolid bar is heated to about 50% solid rate, when carrying out thixotropic forming again, its deformation force is much smaller during than solid-state forging, and metal flow is good, therefore forging only needs once to forge just and is shaped substantially, simplified forging process, saved material, stock utilization can reach 70%.
2, common relatively solid-state Forging Technology has been saved two operations of prefabricated ring and blocking, has reduced production cost, and since when forging required deformation force little, thereby the service life that can improve mould significantly.
3, the aluminium alloy wheel hub that adopts the inventive method to produce under the T6 condition of heat treatment, has more excellent mechanical property than conventional cast aluminium alloy wheel hub, and can be close with the performance of solid-state reflectal wheel hub.
4, reduce the tonnage of equipment needed thereby, saved the expensive expense of purchasing the large-tonnage hot die forging press, also reduced energy consumption simultaneously.
Description of drawings
Fig. 1 looks generalized section for spoke mould master of the present invention.
Fig. 2 looks generalized section for mould pressing mould master of the present invention.
Fig. 3 a is the three-dimensional forging drawing (front) of aluminium alloy wheel hub of the present invention.
Fig. 3 b is the three-dimensional forging drawing (back side) of aluminium alloy wheel hub of the present invention.
The specific embodiment is calculated the volume of required blank according to the wheel hub part drawing, choose A356/A357 semi-solid alloy thixotropic forming bar, and this bar is put into electromagnetic induction heating furnace carry out remelting and be heated to 585 ℃ ± 10 ℃, forge and press then spoke part is shaped.This spoke forming mould as shown in Figure 1, its upper shed grooved lower die-sleeve 1 bottom is fixed on the die shoe 2 by securing member, be positioned at the counterdie 3 of above-mentioned grooved lower die-sleeve, its lower end also is fixed on the die shoe by securing member, be provided with bottom knockout bar 4 in addition in the central through hole of die shoe and counterdie, this counterdie working face is corresponding with wheel hub spoke front and center flange; The limit, upper end of annular Upper Die-sleeve 5 is fixed on the upper bolster 6 by securing member, be positioned at the patrix 7 of above-mentioned annular Upper Die-sleeve, its upper end also is fixed on the upper bolster by securing member, in the central through hole of upper bolster and patrix, be provided with ejector beam 8 in addition, this patrix working face is not only corresponding with the wheel hub spoke back side and center flange, and is roughly corresponding with the wheel rim part again simultaneously.Before the forging and pressing, upper die and lower die separate, on die-face, spray graphitic lubricant, the cylindrical bar that heats is put into counterdie with the robot gripping, promote patrix with 20MN hydraulic press top hydraulic cylinder and carry out Closed Extrusion downwards, and pressurize opens patrix after 8 seconds, by the bottom knockout bar forging ejected, and finishes the shaping at positive shaping of wheel hub spoke and center flange, the spoke back side and the preform of spoke window position and wheel rim part.Take out above-mentioned forging by robot again, put on the enlarging forcing press of the little tonnage of 3.5MN and finish the enlarging operation.Carry out mould pressing then, this mould pressing mould as shown in Figure 2, its upper shed circular groove shape counterdie 9 bottoms link to each other with die shoe 10 by securing member, the counterdie side is corresponding with the wheel rim shape.Material returned holder 11 tops corresponding with the counterdie upper shed are provided with the center slotted eye corresponding with wheel hub, the evagination anchor ring that this material returned filler ring shape end face and counterdie end face are formed, and its curvature is corresponding with wheel hub spoke back surface curvature.Be provided with central through hole at above-mentioned die shoe, counterdie middle part, establish the ejector corresponding 12 in it with it, vertical backstay 13 lower ends link to each other with ejector, the central through hole upper end that material returned holder is passed on top places in the central through hole of patrix 14, and this time working face links to each other with connecting rod 15 with its upper end of the positive corresponding patrix of wheel hub spoke.Upper and lower mould is in released state before the spinning, after forging 16 is put on the counterdie, last hydraulic cylinder promotes patrix downwards, forging is pressed on the counterdie the whole rotation at a high speed of the bottom motor drives upper and lower mould of spinning machine afterwards, 3 spinning rollers of spinning machine spin down from the forging side, the wheel rim of finally finishing forging is shaped, and upwards promotes material returned holder by ejector afterwards, and forging is ejected from counterdie, obtain the aluminium alloy wheel hub forging, as shown in Figure 3.
Claims (3)
1. the processing method of an aluminium alloy wheel hub is characterized in that:
(1) adopts semi-solid alloy thixotropic forming bar as manufactured materials, and this bar is put into electromagnetic induction heating furnace carry out remelting and be heated to 585 ℃ ± 10 ℃;
(2) the above-mentioned bar that will heat is put into the counterdie of spoke mould, promote patrix with the 20MN hydraulic press and carry out Closed Extrusion downwards, and pressurize opens patrix after 5～10 seconds, by the bottom knockout bar forging is ejected;
(3) take out above-mentioned forging, put on the enlarging forcing press of little tonnage and finish above-mentioned forging enlarging;
(4) after being put into above-mentioned forging on the spinning lower mould, last hydraulic cylinder promotes patrix downwards, forging is pressed on the counterdie, the whole rotation at a high speed of the bottom motor drives upper and lower mould of spinning machine afterwards, 3 spinning rollers of spinning machine spin down from the forging side, the wheel rim of finally finishing forging is shaped, and upwards promotes material returned holder by ejector afterwards, and forging is ejected from counterdie.
2. the processing method of aluminium alloy wheel hub according to claim 1, it is characterized in that: its upper shed grooved lower die-sleeve bottom of this spoke mould is fixed on the die shoe by securing member, be positioned at the counterdie of above-mentioned grooved lower die-sleeve, its lower end also is fixed on the die shoe by securing member, be provided with the bottom knockout bar in addition in the central through hole of die shoe and counterdie, this counterdie working face is corresponding with wheel hub spoke front and center flange; The limit, upper end of annular Upper Die-sleeve is fixed on the upper bolster by securing member, be positioned at the patrix of above-mentioned annular Upper Die-sleeve, its upper end also is fixed on the upper bolster by securing member, in the central through hole of upper bolster and patrix, be provided with ejector beam in addition, this patrix working face is not only corresponding with the wheel hub spoke back side and center flange, and is roughly corresponding with the wheel rim part again simultaneously.
3. the processing method of aluminium alloy wheel hub according to claim 1, it is characterized in that: its upper shed circular groove shape counterdie bottom of this mould pressing mould links to each other with die shoe by securing member, the counterdie side is corresponding with the wheel rim shape, the material returned jacking portion corresponding with the counterdie upper shed is provided with the center slotted eye corresponding with wheel hub, the evagination anchor ring that this material returned filler ring shape end face and counterdie end face are formed, its curvature is corresponding with wheel hub spoke back surface curvature, at above-mentioned die shoe, the counterdie middle part is provided with central through hole, establish the ejector corresponding in it with it, vertical backstay lower end links to each other with ejector, the central through hole upper end that material returned holder is passed on top places in the central through hole of patrix, and this time working face links to each other with connecting rod with its upper end of the positive corresponding patrix of wheel hub spoke.
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| CN2010102427592A CN101912944B (en) | 2010-08-03 | 2010-08-03 | Method for machining aluminum alloy hub |
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| CN2010102427592A CN101912944B (en) | 2010-08-03 | 2010-08-03 | Method for machining aluminum alloy hub |
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| CN101912944A true CN101912944A (en) | 2010-12-15 |
| CN101912944B CN101912944B (en) | 2012-07-25 |
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Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102133607A (en) * | 2011-01-16 | 2011-07-27 | 中信戴卡轮毂制造股份有限公司 | Upper die jacking device of improved spinning die |
| CN102228951A (en) * | 2011-04-26 | 2011-11-02 | 哈尔滨哈飞工业有限责任公司 | Chambering-forging forming method for aluminum alloy hub with complex structure and die thereof |
| CN102632185A (en) * | 2012-01-14 | 2012-08-15 | 秦皇岛燕大现代集成制造技术开发有限公司 | Magnesium alloy wheel forging forming method and die |
| CN102744570A (en) * | 2012-06-29 | 2012-10-24 | 宁波宝通轮业有限公司 | Three-step aluminum alloy hub producing method and forging dies and spinning dies used by same |
| CN102814621A (en) * | 2011-06-07 | 2012-12-12 | 韦光东 | Automobile hub isothermal forging and spinning forming process |
| CN103331575A (en) * | 2013-06-07 | 2013-10-02 | 南通福乐达汽车配件有限公司 | Forming technique of hub with bidirectional cylindrical boss |
| CN103624235A (en) * | 2012-08-28 | 2014-03-12 | 昆山拓卡自动化设备制造有限公司 | Method for manufacturing wheel hub by adopting liquid forging and spinning processes in combined mode |
| CN103920782A (en) * | 2014-03-03 | 2014-07-16 | 江苏天宏自动化科技有限公司 | Special hub spinning cutter combination |
| CN104097029A (en) * | 2014-06-16 | 2014-10-15 | 内蒙古华唐都瑞轮毂有限公司 | Forging and rotating type short process technology |
| CN104625633A (en) * | 2014-12-26 | 2015-05-20 | 西安交通大学 | Semisolid manufacturing technology for mold ring spinning strain inducing method for submarine ring rib cylindrical shell |
| CN102873252B (en) * | 2012-09-27 | 2015-07-15 | 天津市天锻压力机有限公司 | Forging process of large aluminum alloy hub |
| CN104874626A (en) * | 2015-04-24 | 2015-09-02 | 中北大学 | Process and device for forming magnesium alloy loading wheel disc through combined extruding in radial direction and reverse direction |
| CN105014314A (en) * | 2015-06-24 | 2015-11-04 | 陈文建 | Wheel hub forging technology |
| WO2015188546A1 (en) * | 2014-06-13 | 2015-12-17 | 浙江巨科实业股份有限公司 | Method for manufacturing aluminium alloy wheel hub |
| CN105397011A (en) * | 2015-12-24 | 2016-03-16 | 镇江奥兰迪汽车部件有限公司 | Wheel hub forging mold |
| 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 |
| CN106166595A (en) * | 2016-03-16 | 2016-11-30 | 上海运良锻压机床有限公司 | Aluminium alloy wheel hub of vehicle forging rotation method |
| CN106424406A (en) * | 2016-12-26 | 2017-02-22 | 安庆迪力机械铸造有限公司 | Heating spinning flaring device |
| CN106734669A (en) * | 2016-12-26 | 2017-05-31 | 安庆迪力机械铸造有限公司 | A kind of forklift hub spinning enlarging device |
| CN106825272A (en) * | 2016-12-26 | 2017-06-13 | 安庆迪力机械铸造有限公司 | A kind of forklift hub expanding device |
| CN107297601A (en) * | 2017-07-04 | 2017-10-27 | 蚌埠市福沃特车轮制造科技有限公司 | The hot lathe turner's skill of acid resistance aluminium alloy wheel hub |
| CN109590430A (en) * | 2019-01-31 | 2019-04-09 | 福州金锻工业有限公司 | A kind of wheel hub structure automatic charging cold forging assembly line and forging method |
| CN110814245A (en) * | 2019-11-06 | 2020-02-21 | 江阴市恒润环锻有限公司 | Forging method of aluminum alloy forging |
| CN116274788A (en) * | 2023-05-15 | 2023-06-23 | 山西银光华盛镁业股份有限公司 | Magnesium alloy forging forming method and equipment |
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| CN101480670A (en) * | 2009-01-19 | 2009-07-15 | 中北大学 | Squeezing-revolving shaping method of magnesium alloy wheel and device thereof |
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| JP2004106055A (en) * | 2002-07-23 | 2004-04-08 | Ube Machinery Corporation Ltd | Forging die for half-melted metal and forming method using such die |
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Cited By (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102133607A (en) * | 2011-01-16 | 2011-07-27 | 中信戴卡轮毂制造股份有限公司 | Upper die jacking device of improved spinning die |
| CN102228951A (en) * | 2011-04-26 | 2011-11-02 | 哈尔滨哈飞工业有限责任公司 | Chambering-forging forming method for aluminum alloy hub with complex structure and die thereof |
| CN102228951B (en) * | 2011-04-26 | 2012-11-14 | 哈尔滨哈飞工业有限责任公司 | Chambering-forging forming method for aluminum alloy hub with complex structure and die thereof |
| CN102814621A (en) * | 2011-06-07 | 2012-12-12 | 韦光东 | Automobile hub isothermal forging and spinning forming process |
| CN102632185A (en) * | 2012-01-14 | 2012-08-15 | 秦皇岛燕大现代集成制造技术开发有限公司 | Magnesium alloy wheel forging forming method and die |
| CN102744570A (en) * | 2012-06-29 | 2012-10-24 | 宁波宝通轮业有限公司 | Three-step aluminum alloy hub producing method and forging dies and spinning dies used by same |
| CN103624235A (en) * | 2012-08-28 | 2014-03-12 | 昆山拓卡自动化设备制造有限公司 | Method for manufacturing wheel hub by adopting liquid forging and spinning processes in combined mode |
| CN102873252B (en) * | 2012-09-27 | 2015-07-15 | 天津市天锻压力机有限公司 | Forging process of large aluminum alloy hub |
| CN103331575B (en) * | 2013-06-07 | 2015-11-25 | 南通福乐达汽车配件有限公司 | A kind of moulding process of two-way tubular boss wheel hub |
| CN103331575A (en) * | 2013-06-07 | 2013-10-02 | 南通福乐达汽车配件有限公司 | Forming technique of hub with bidirectional cylindrical boss |
| 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 |
| CN103920782A (en) * | 2014-03-03 | 2014-07-16 | 江苏天宏自动化科技有限公司 | Special hub spinning cutter combination |
| WO2015188546A1 (en) * | 2014-06-13 | 2015-12-17 | 浙江巨科实业股份有限公司 | Method for manufacturing aluminium alloy wheel hub |
| CN104097029A (en) * | 2014-06-16 | 2014-10-15 | 内蒙古华唐都瑞轮毂有限公司 | Forging and rotating type short process technology |
| CN104625633A (en) * | 2014-12-26 | 2015-05-20 | 西安交通大学 | Semisolid manufacturing technology for mold ring spinning strain inducing method for submarine ring rib cylindrical shell |
| CN104874626A (en) * | 2015-04-24 | 2015-09-02 | 中北大学 | Process and device for forming magnesium alloy loading wheel disc through combined extruding in radial direction and reverse direction |
| CN105014314A (en) * | 2015-06-24 | 2015-11-04 | 陈文建 | Wheel hub forging technology |
| CN105397011A (en) * | 2015-12-24 | 2016-03-16 | 镇江奥兰迪汽车部件有限公司 | Wheel hub forging mold |
| CN106166595A (en) * | 2016-03-16 | 2016-11-30 | 上海运良锻压机床有限公司 | Aluminium alloy wheel hub of vehicle forging rotation method |
| CN106424406A (en) * | 2016-12-26 | 2017-02-22 | 安庆迪力机械铸造有限公司 | Heating spinning flaring device |
| CN106734669A (en) * | 2016-12-26 | 2017-05-31 | 安庆迪力机械铸造有限公司 | A kind of forklift hub spinning enlarging device |
| CN106825272A (en) * | 2016-12-26 | 2017-06-13 | 安庆迪力机械铸造有限公司 | A kind of forklift hub expanding device |
| CN107297601A (en) * | 2017-07-04 | 2017-10-27 | 蚌埠市福沃特车轮制造科技有限公司 | The hot lathe turner's skill of acid resistance aluminium alloy wheel hub |
| CN109590430A (en) * | 2019-01-31 | 2019-04-09 | 福州金锻工业有限公司 | A kind of wheel hub structure automatic charging cold forging assembly line and forging method |
| CN109590430B (en) * | 2019-01-31 | 2024-02-06 | 福州金锻工业有限公司 | Automatic feeding and cold forging assembly line for hub structure and forging method |
| CN110814245A (en) * | 2019-11-06 | 2020-02-21 | 江阴市恒润环锻有限公司 | Forging method of aluminum alloy forging |
| CN110814245B (en) * | 2019-11-06 | 2021-05-14 | 江阴市恒润环锻有限公司 | Forging method of aluminum alloy forging |
| CN116274788A (en) * | 2023-05-15 | 2023-06-23 | 山西银光华盛镁业股份有限公司 | Magnesium alloy forging forming method and equipment |
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| CN101912944B (en) | 2012-07-25 |
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