CN102825208B - Forging and forming process of aluminum alloy car control arm - Google Patents
Forging and forming process of aluminum alloy car control arm Download PDFInfo
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- CN102825208B CN102825208B CN201210319094.XA CN201210319094A CN102825208B CN 102825208 B CN102825208 B CN 102825208B CN 201210319094 A CN201210319094 A CN 201210319094A CN 102825208 B CN102825208 B CN 102825208B
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Abstract
The invention discloses a forging and forming process of an aluminum alloy car control arm. The forging and forming process comprises the following procedures of: (1) cutting an extrusion bar; (2) heating for the first time; (3) forging a die for the first time; (4) heating for the second time; (5) forging the die for the second time and (6) hot trimming. According to the forging and forming process of the aluminum alloy car control arm, a large-section extruded section is replaced by a small-section extrusion bar, so that the extrusion cost and cutting cost of the raw material are reduced, and the production cost is greatly reduced; an electric induction heating mode is adopted for heating, so that the heating speed of a blank and the heating uniformity of the product are improved, and the product quality is improved; artificial free-forging stamping is replaced by die-forging stamping, so that the stamping quality is improved, the injury is reduced, a technology chain is shortened, and the production efficient is greatly improved; and the hot trimming mode is adopted for trimming, so that the trimmed section is more smooth and is less in burr, and the product quality is improved.
Description
Technical field
The present invention relates to the forging of automobile control arm, be specifically related to a kind of forging and forming technology of aluminium alloy automobile control arm.
Background technology
Automobile control arm belongs to the connection member in automobile chassis suspension system, is the connector for connecting wheel hub and subframe.Along with the requirement of automotive light weight technology, iron control arm progressively substitute by aluminum alloy control arm; Aluminum current alloy automobile control arm adopts forging and molding mostly.Fig. 5 is that 6XXX series alloys is applied to the technological process of the forging and molding of aluminium alloy car control arm in recent years, and concrete Forging Technology comprises following operation:
Operation 1 extrudate cuts: take aluminum alloy extrusion section bar as raw material, length as required carries out sawing;
Operation 2 once heats: be placed in electric furnace by the material cut and heat; Heating and temperature control at 420-480 DEG C, uniformity ± 10 DEG C of the heating-up temperature of material;
Operation 3 open die forging: by the material heated, manually carries out the distribution of material volume on pneumatic hammer;
Operation 4 die forgings: mold cavity forging and molding put into by the blank prepared by volume integral;
Operation 5 repaiies wound: owing to being adopt open die forging to carry out capacity distribution, blank being hammered into shape produce spread groove between hammer, blank die forging rear surface produces folding, removes to fold carry out repairing wound with hand grinding tool polishing;
Operation 6 post bake: the blank through repairing injury reason is carried out post bake, and post bake is carried out in electric furnace; Heating and temperature control is at 420-480 DEG C, and the uniformity of the heating-up temperature of material is ± 10 DEG C;
Operation 7 two die forgings: product will be heated and put into mold cavity forging and molding;
Operation 8 trimming: after the product cooling of secondary die-forging forming, adopt the mode deflashing of cold cut.
There is following problem in this aluminium alloy car control arm forging and forming technology: first, and raw material are heavy in section extrudate, raw-material extruding cost and cutting cost higher; Secondly, heating process adopts electric furnace to complete, and the firing rate of blank and heating uniformity are difficult to ensure, is difficult to ensure crudy; Thirdly, artificial open die forging base, blank surface is formed folding, needs to repair wound to folding, adds the complexity of technique, reduces production efficiency; Finally, the mode adopting cold cut to cut completes trimming, and the section of trimming easily occurs burr, affects the quality of production of control arm.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of production cost low, the high and forging and forming technology of the aluminium alloy automobile control arm of good product quality of production effect.
To achieve these goals, the technical solution used in the present invention is:
The forging and forming technology of described aluminium alloy automobile control arm, comprises following operation:
(1) extruded bars cutting, adopts extruding pole to be blank, and length as required carries out sawing to extruding pole, and removes burr; Band mill is adopted to carry out sawing to extruding pole;
(2) once heat, adopt induction furnace to heat blank good for sawing, heating-up temperature is 440-480 DEG C;
(3) die forgings: by the blank heated, put into Preform Die die cavity, carry out distribution and the preform of volume to blank, Preform Die adopts open die apparatus, is specially friction press or mechanical press;
(4) post bake: be placed in induction furnace by the first formed product of a die-forging forming and heat, heating-up temperature is 420-480 DEG C, the uniformity of the heating-up temperature of first formed product is ± 10 DEG C;
(5) secondary die forging: the first formed product of post bake is put into finish-forging die die cavity forging and molding; Finish-forging die adopts open die apparatus, is specially friction press or mechanical press;
(6) hot trimming: adopt fervent mode to carry out trimming to the product that secondary die forging is shaped eventually, trimming temperature controls more than 350 DEG C, trimming adopts mechanical press to complete, and completes the forging of aluminium alloy automobile control arm.
The forging and forming technology of described aluminium alloy automobile control arm, has the following advantages: first, adopts small bore extruded bars to substitute heavy in section extrudate, reduces raw-material extruding cost and cutting cost, considerably reduce production cost; Secondly, once heating and post bake all adopt electrical induction mode, improve the uniformity of blank heating speed and product heating, improve product quality; Thirdly, adopt die forging base to instead of artificial open die forging base, improve the quality of base, decrease and repair wound, shorten technology chain, increased substantially production efficiency; Finally, trimming adopts hot trimming mode, and the more smooth few burr of the section of trimming, improves product quality compared with cold-trim(ming); Comprehensive it, the present invention can simplify manufacturing procedure, enhances productivity, improves stock utilization, improve the quality of products, and reduces manufacturing cost.
Accompanying drawing explanation
Mark in the content expressed each width accompanying drawing of description of the present invention below and figure is briefly described:
Fig. 1 is the process chart of the forging and forming technology of aluminium alloy automobile control arm of the present invention;
Fig. 2 is the structural representation of aluminium alloy automobile control arm in the forging and forming technology of aluminium alloy automobile control arm of the present invention;
Fig. 3 is the structural representation of the extruding pole adopted in the forging and forming technology of aluminium alloy automobile control arm of the present invention;
Fig. 4 is the first shaped structure schematic diagram of automobile control arm in the forging and forming technology of aluminium alloy automobile control arm of the present invention;
Fig. 5 is the process chart of the forging and forming technology of aluminium alloy automobile control arm in prior art;
Detailed description of the invention
Contrast accompanying drawing below, by the description to optimum embodiment, the specific embodiment of the present invention is described in further detail.
Fig. 1 is the process chart of the forging and forming technology of aluminium alloy automobile control arm of the present invention, Fig. 2 is the product structure figure of automobile control arm that the forging and forming technology of aluminium alloy automobile control arm of the present invention makes, Fig. 3 by the forging and forming technology of aluminium alloy automobile control arm of the present invention is adopted raw material mix schematic diagram; Fig. 4 is the structural representation of just formed product in the forging and forming technology of aluminium alloy automobile control arm of the present invention.
Embodiment 1
The forging and forming technology of described aluminium alloy automobile control arm, comprises following operation:
(1) extruded bars cutting, adopts extruding pole to be blank, and length as required adopts band mill to carry out sawing to extruding pole, and removes burr;
(2) once heat, adopt induction furnace to heat blank good for sawing, heating-up temperature is 440 DEG C;
(3) die forgings: by the blank heated, put into friction press mold cavity, carry out distribution and the preform of volume to blank;
(4) post bake: be placed in induction furnace by the first formed product of a die-forging forming and heat, heating-up temperature is 420 DEG C, the uniformity of the heating-up temperature of first formed product is 10 DEG C;
(5) secondary die forging: the first formed product of post bake is put into friction press mold cavity forging and molding;
(6) hot trimming: adopt fervent mode to carry out trimming to the product that secondary die forging is shaped eventually, trimming is completed by punching machine, and trimming temperature controls, at 350 DEG C, namely to complete the forging of aluminium alloy automobile control arm.
Embodiment 2
The forging and forming technology of described aluminium alloy automobile control arm, comprises following operation:
(1) extruded bars cutting, adopts extruding pole to be blank, and length as required adopts band mill to carry out sawing to extruding pole, and removes burr;
(2) once heat, adopt induction furnace to heat blank good for sawing, heating-up temperature is 480 DEG C;
(3) die forgings: by the blank heated, put into mechanical press mold cavity, carry out distribution and the preform of volume to blank;
(4) post bake: be placed in induction furnace by the first formed product of a die-forging forming and heat, heating-up temperature is 450 DEG C, the uniformity of the heating-up temperature of first formed product is ﹣ 10 DEG C;
(5) secondary die forging: the first formed product of post bake is put into mechanical press mold cavity forging and molding;
(6) hot trimming: adopt fervent mode to carry out trimming to the product that secondary die forging is shaped eventually, trimming is completed by punching machine, and trimming temperature controls, at 400 DEG C, namely to complete the forging of aluminium alloy automobile control arm.
Embodiment 3
The forging and forming technology of described aluminium alloy automobile control arm, comprises following operation:
(1) extruded bars cutting, adopts extruding pole to be blank, and length as required adopts band mill to carry out sawing to extruding pole, and removes burr;
(2) once heat, adopt induction furnace to heat blank good for sawing, heating-up temperature is 460 DEG C;
(3) die forgings: by the blank heated, put into mechanical press mold cavity, carry out distribution and the preform of volume to blank;
(4) post bake: be placed in induction furnace by the first formed product of a die-forging forming and heat, heating-up temperature is 480 DEG C, the uniformity of the heating-up temperature of first formed product is ﹣ 10 DEG C;
(5) secondary die forging: the first formed product of post bake is put into mechanical press mold cavity forging and molding;
(6) hot trimming: adopt fervent mode to carry out trimming to the product that secondary die forging is shaped eventually, trimming is completed by punching machine, and trimming temperature controls, at 420 DEG C, namely to complete the forging of aluminium alloy automobile control arm.
Embodiment 4
The forging and forming technology of described aluminium alloy automobile control arm, comprises following operation:
(1) extruded bars cutting, adopts extruding pole to be blank, and length as required adopts band mill to carry out sawing to extruding pole, and removes burr;
(2) once heat, adopt induction furnace to heat blank good for sawing, heating-up temperature is 470 DEG C;
(3) die forgings: by the blank heated, put into friction press mold cavity, carry out distribution and the preform of volume to blank;
(4) post bake: be placed in induction furnace by the first formed product of a die-forging forming and heat, heating-up temperature is 440 DEG C, the uniformity of the heating-up temperature of first formed product is 10 DEG C;
(5) secondary die forging: the first formed product of post bake is put into friction press mold cavity forging and molding;
(6) hot trimming: adopt fervent mode to carry out trimming to the product that secondary die forging is shaped eventually, trimming is completed by punching machine, and trimming temperature controls, at 380 DEG C, namely to complete the forging of aluminium alloy automobile control arm.
By the forging and forming technology of aluminium alloy automobile control arm described in embodiment 1 to embodiment 4, not only increase production efficiency, reduce production cost, and increased substantially product quality, the aluminium alloy automobile control arm that the present invention makes, compared with prior art, not only quality is better, and the sensory effects such as product surface slickness have had very big raising on year-on-year basis.
Above to invention has been exemplary description; obvious specific implementation of the present invention is not subject to the restrictions described above; as long as have employed the improvement of the various unsubstantialities that method of the present invention is conceived and technical scheme is carried out; or design of the present invention and technical scheme directly applied to other occasion, all within protection scope of the present invention without to improve.
Claims (3)
1. a forging and forming technology for aluminium alloy automobile control arm, is characterized in that: comprise following operation:
(1) extruded bars cutting, adopt band mill to carry out sawing to extruding pole, adopt extruding pole to be blank, length as required carries out sawing to extruding pole, and removes burr;
(2) once heat, adopt induction furnace to heat blank good for sawing, heating-up temperature is 440-480 DEG C;
(3) die forgings: by the blank heated, put into Preform Die die cavity, carry out distribution and the preform of volume to blank;
(4) post bake: be placed in induction furnace by the first formed product of a die-forging forming and heat, heating-up temperature is 420-480 DEG C, the uniformity of first formed product heating-up temperature is ± 10 DEG C;
(5) secondary die forging: the first formed product of post bake is put into finish-forging die die cavity forging and molding;
(6) hot trimming: adopt fervent mode to carry out trimming to the product that secondary die forging is shaped eventually, trimming temperature controls more than 380 DEG C;
A die forging and secondary die forging all adopt open die apparatus, and open die apparatus is friction press or mechanical press; Trimming equipment is mechanical press.
2. according to the forging and forming technology of aluminium alloy automobile control arm according to claim 1, it is characterized in that: once heat, adopt induction furnace to heat blank, heating-up temperature is 440-460 DEG C; Post bake, first formed product is placed in induction furnace and heats, and heating-up temperature is 420-450 DEG C, and the uniformity of first formed product heating-up temperature is ± 10 DEG C; Hot trimming, trimming temperature controls more than 380 DEG C.
3. according to the forging and forming technology of aluminium alloy automobile control arm according to claim 1, it is characterized in that: once heat, adopt induction furnace to heat blank, heating-up temperature is 440-470 DEG C; Post bake, first formed product is placed in induction furnace and heats, and heating-up temperature is 420-440 DEG C, and the uniformity of first formed product heating-up temperature is ± 10 DEG C; Hot trimming, trimming temperature controls more than 400 DEG C.
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| CN105680393A (en) * | 2014-11-16 | 2016-06-15 | 江苏天南电力器材有限公司 | Extra-high voltage suspension clamp and production technology and equipment thereof |
| CN104972029B (en) * | 2015-05-26 | 2017-02-22 | 江苏亚太安信达铝业有限公司 | Forging method of wire clamp body for high voltage iron tower |
| CN106938310B (en) * | 2017-03-23 | 2018-06-05 | 遵义航天新力精密铸锻有限公司 | The finish forge processing method of aviation aircraft connecting seat |
| CN108097855B (en) * | 2017-12-21 | 2019-07-12 | 清华大学 | A kind of railway frog solid forging method |
| CN108443450B (en) * | 2018-02-28 | 2019-12-17 | 大道机械装备有限公司 | Production method of rotor for hydraulic coupler |
| CN110497154B (en) * | 2019-08-29 | 2020-10-27 | 浙江同兴金属锻件股份有限公司 | Method for processing automobile brake pad block |
| CN113894243A (en) * | 2021-12-10 | 2022-01-07 | 宁波旭升汽车技术股份有限公司 | Short-process forging process for automobile chassis forge piece |
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| CN102357628A (en) * | 2011-10-13 | 2012-02-22 | 北京机电研究所 | Method for forming aluminum alloy branch forgings |
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| KR20060021965A (en) * | 2004-09-06 | 2006-03-09 | 현대자동차주식회사 | Method for manufacturing aluminium lower arm of vehicle |
| US8152940B2 (en) * | 2006-03-31 | 2012-04-10 | Kobe Steel, Ltd. | Aluminum alloy forging member and process for producing the same |
| KR20100107771A (en) * | 2009-03-26 | 2010-10-06 | 현대제철 주식회사 | Lower arm of car and manufacturing method thereof |
| CN102152721B (en) * | 2011-03-23 | 2012-08-01 | 重庆大学 | Magnesium alloy automobile steering control arm |
| CN102319867A (en) * | 2011-09-29 | 2012-01-18 | 芜湖禾田汽车工业有限公司 | Forging forming process for control arm |
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| CN102500740A (en) * | 2011-09-29 | 2012-06-20 | 芜湖禾田汽车工业有限公司 | Manufacturing process for lambdoidal control arm |
| CN102357628A (en) * | 2011-10-13 | 2012-02-22 | 北京机电研究所 | Method for forming aluminum alloy branch forgings |
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