CN106391986A - Manufacturing method for car yoke forged piece - Google Patents
Manufacturing method for car yoke forged piece Download PDFInfo
- Publication number
- CN106391986A CN106391986A CN201610711914.8A CN201610711914A CN106391986A CN 106391986 A CN106391986 A CN 106391986A CN 201610711914 A CN201610711914 A CN 201610711914A CN 106391986 A CN106391986 A CN 106391986A
- Authority
- CN
- China
- Prior art keywords
- forging
- blank
- hours
- car
- stock
- Prior art date
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K7/00—Making railway appurtenances; Making vehicle parts
- B21K7/12—Making railway appurtenances; Making vehicle parts parts for locomotives or vehicles, e.g. frames, underframes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/002—Hybrid process, e.g. forging following casting
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
The invention relates to a manufacturing method for a car yoke forged piece. The manufacturing method comprises the following steps of: (a) extruding a cast aluminum rod raw material so as to increase the sectional area of the cast aluminum rod raw material by twice to five times, and saw-cutting the cast aluminum rod raw material into sections, thereby obtaining blank; (b) putting the blank at a temperature being 450-500 DEG C to heat for more than 3 hours, and pre-forging the blank while the blank is hot; (c) putting the pre-forged blank at a temperature being 450-500 DEG C to heat for more than 3 hours, and carrying out finish forging on the blank while the blank is hot; (d) putting the finish-forged blank at a temperature being 525-530 DEG C to heat for 2-5 hours, and then, carrying out ageing treatment; and (e), carrying out shot blasting treatment on the blank subjected to the ageing treatment to form a rough surface, and machining the rough surface, thereby obtaining the car yoke forged piece. According to the manufacturing method, the blank is heated, forged, subjected to ageing treatment and subjected to shot blasting treatment in sequence, so that strength, plasticity and hardness of the yoke forged piece can be improved.
Description
Technical field
The present invention relates to a kind of preparation method of auto parts and components is and in particular to a kind of car connects the preparation side of fork forging
Method.
Background technology
Car connects fork and generally includes connecting portion 1, the bar portion 2 being integrally formed at connecting portion 1 both sides and shape as shown in Figure 1
Become the projection 3 in bar portion 2 end.In prior art, car connects the forging technology process pitched is substantially：With round steel as raw material, first
Heating forges into crude green body, and then heating forges as finished product again.Heating typically adopts gas furnace heating.And gas furnace heating
Temperature uneven, because combustion of natural gas is really oxidation reaction process, be also easy to lead to decarburization simultaneously.Whole process is multiple
Miscellaneous, long flow path, makes metal inside tissue change uneven and difference is moved, and crystal grain increases；The toughness of product, plasticity, tensile strength etc. are all
Influenced to different extents, so that product quality and service life is had a certain impact.And so heating twice forges
Process is simple, the product obtaining is easy to cannot be used for because of insufficient strength in car, increased the cost of enterprise.
Content of the invention
The invention aims to overcoming the deficiencies in the prior art and providing a kind of car to connect the preparation method of fork forging.
For reaching above-mentioned purpose, the technical solution adopted in the present invention is：A kind of car connects the preparation method of fork forging,
It comprises the following steps：
A () carries out extruding to aluminium casting rod raw material makes its area of section increase 2～5 times, and subsequently it being carried out being sawed into section with obtaining
Stock；
B described stock is placed in 450～500 DEG C and heats more than 3 hours by (), subsequently carry out blocking to it while hot；
C described stock after blocking is placed in 450～500 DEG C and heats more than 3 hours by () again, subsequently carry out end to it while hot
Forging；
D described stock after finish-forging is placed in 525～530 DEG C of heating 2～5 hours by () after, carry out Ageing Treatment；
E described stock after Ageing Treatment is carried out bead by (), be machined out after forming rough surface.
Optimally, in step (c), described stock is carried out carry out trimming process after finish-forging to remove unnecessary rim charge.
Optimally, in step (d), before carrying out Ageing Treatment, shaping is carried out to described stock using mould.
Optimally, in step (d), described Ageing Treatment is to be incubated 5～10 hours at 170～180 DEG C.
Optimally, in step (e), residing bead uses the shot of 0.3～0.5mm.
Because technique scheme is used, the present invention compared with prior art has following advantages：Car of the present invention connects
The preparation method of fork forging, stock priority is carried out heat, forging, timeliness, shot-peening, so can improve and connect the strong of fork forging
Degree, plasticity and hardness.
Brief description
Fig. 1 connects the structural representation of fork forging for car of the present invention；
Wherein, 1, connecting portion；2nd, bar portion；3rd, raised.
Specific embodiment
Below in conjunction with accompanying drawing, the preferred embodiment of the invention is described in detail.
Embodiment 1
The present embodiment provides a kind of car to connect the preparation method of fork forging, and it comprises the following steps：
A () carries out extruding compacting to aluminium casting rod raw material makes 2～5 times of its area of section increase (specifically increase multiple by car
The size connecting fork forging determines, will not produce impact to the performance of final products), with improve aluminium casting rod raw material packing and
Performance, subsequently carries out being sawed into section obtaining stock to it；
B stock is placed in 450 DEG C and heats 3 hours by (), carry out blocking to it while hot followed by mould, be forged into similar sedan-chair
Car connects the shape of fork；
C stock after blocking is placed in 450 DEG C and heats 3 hours by () again, carry out finish-forging to it while hot followed by mould, forging
Cause the shape being connected fork with car basically identical, then carry out trimming to process to remove unnecessary rim charge；
(to form the strengthening such as Si-Mg alloy, almag d stock after finish-forging is placed in 525 DEG C of heating 5 hours by () after
Phase), carry out within 10 hours Ageing Treatment (to improve hardness) in 170 DEG C of insulations；
E stock after Ageing Treatment is carried out bead using the shot of 0.3mm by (), carry out machine after forming rough surface
Process.
Embodiment 2
The present embodiment provides a kind of car to connect the preparation method of fork forging, and it comprises the following steps：
A () carries out extruding compacting to aluminium casting rod raw material makes 2～5 times of its area of section increase (specifically increase multiple by car
The size connecting fork forging determines, will not produce impact to the performance of final products), with improve aluminium casting rod raw material packing and
Performance, subsequently carries out being sawed into section obtaining stock to it；
B stock is placed in 500 DEG C and heats 5 hours by (), carry out blocking to it while hot followed by mould, be forged into similar sedan-chair
Car connects the shape of fork；
C stock after blocking is placed in 500 DEG C and heats 5 hours by () again, carry out finish-forging to it while hot followed by mould, forging
Cause the shape being connected fork with car basically identical, then carry out trimming to process to remove unnecessary rim charge；
(to form the strengthening such as Si-Mg alloy, almag d stock after finish-forging is placed in 530 DEG C of heating 2 hours by () after
Phase), carry out within 5 hours Ageing Treatment (to improve hardness) in 180 DEG C of insulations；
E stock after Ageing Treatment is carried out bead using the shot of 0.5mm by (), carry out machine after forming rough surface
Process.
Embodiment 3
The present embodiment provides a kind of car to connect the preparation method of fork forging, and it comprises the following steps：
A () carries out extruding compacting to aluminium casting rod raw material makes 2～5 times of its area of section increase (specifically increase multiple by car
The size connecting fork forging determines, will not produce impact to the performance of final products), with improve aluminium casting rod raw material packing and
Performance, subsequently carries out being sawed into section obtaining stock to it；
B stock is placed in 460 DEG C and heats 10 hours by (), carry out blocking to it while hot followed by mould, be forged into similar
Car connects the shape of fork；
C stock after blocking is placed in 480 DEG C and heats 6 hours by () again, carry out finish-forging to it while hot followed by mould, forging
Cause the shape being connected fork with car basically identical, then carry out trimming to process to remove unnecessary rim charge；
(to form the strengthening such as Si-Mg alloy, almag d stock after finish-forging is placed in 528 DEG C of heating 3 hours by () after
Phase), carry out within 8 hours Ageing Treatment (to improve hardness) in 175 DEG C of insulations；
E stock after Ageing Treatment is carried out bead using the shot of 0.4mm by (), carry out machine after forming rough surface
Process.
Car in embodiment 1 to embodiment 3 is connected with fork forging and carries out performance test, the results are shown in Table 1 for it.
Above-described embodiment only technology design to illustrate the invention and feature, its object is to allow person skilled in the art
Scholar will appreciate that present disclosure and implements according to this, can not be limited the scope of the invention with this.All according to the present invention
Equivalence changes or modification that Spirit Essence is made, all should be included within the scope of the present invention.
Claims (5)
1. a kind of car connects the preparation method of fork forging it is characterised in that it comprises the following steps：
A () carries out extruding to aluminium casting rod raw material makes its area of section increase 2～5 times, and subsequently it being carried out being sawed into section with obtaining stock；
B described stock is placed in 450～500 DEG C and heats more than 3 hours by (), subsequently carry out blocking to it while hot；
C described stock after blocking is placed in 450～500 DEG C and heats more than 3 hours by () again, subsequently carry out finish-forging to it while hot；
D described stock after finish-forging is placed in 525～530 DEG C of heating 2～5 hours by () after, carry out Ageing Treatment；
E described stock after Ageing Treatment is carried out bead by (), be machined out after forming rough surface.
2. car according to claim 1 connect fork forging preparation method it is characterised in that：In step (c), to described
Stock carries out trimming and processes to remove unnecessary rim charge after carrying out finish-forging.
3. car according to claim 1 connect fork forging preparation method it is characterised in that：In step (d), carrying out
Before Ageing Treatment, shaping is carried out to described stock using mould.
4. car according to claim 1 connect fork forging preparation method it is characterised in that：In step (d), when described
Effect is processed as being incubated 5～10 hours at 170～180 DEG C.
5. car according to claim 1 connect fork forging preparation method it is characterised in that：In step (e), residing spray
Ball processes the shot using 0.3～0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610711914.8A CN106391986A (en) | 2016-08-16 | 2016-08-16 | Manufacturing method for car yoke forged piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610711914.8A CN106391986A (en) | 2016-08-16 | 2016-08-16 | Manufacturing method for car yoke forged piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106391986A true CN106391986A (en) | 2017-02-15 |
Family
ID=58004384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610711914.8A Pending CN106391986A (en) | 2016-08-16 | 2016-08-16 | Manufacturing method for car yoke forged piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106391986A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108284137A (en) * | 2017-12-25 | 2018-07-17 | 常州市胜彪标准件模具有限公司 | A kind of cold extruding processing method of machine components shape requirement straight slot |
| CN111957877A (en) * | 2020-07-14 | 2020-11-20 | 沈阳和世泰通用钛业有限公司 | Forging forming method for vehicle cross arm |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005031605A (en) * | 2003-07-11 | 2005-02-03 | Umemoto Seisakusho:Kk | Ball joint and universal tripod head |
| CN101279354A (en) * | 2008-05-15 | 2008-10-08 | 宁夏天地奔牛实业集团有限公司 | Method for producing connecting pin forging |
| CN203257860U (en) * | 2013-04-27 | 2013-10-30 | 南京亨发达汽配制造有限公司 | Connecting fork forged blank for universal joint |
| CN204004036U (en) * | 2014-01-20 | 2014-12-10 | 永嘉县正菱精密锻造有限公司 | Fork is in transmission connection |
-
2016
- 2016-08-16 CN CN201610711914.8A patent/CN106391986A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005031605A (en) * | 2003-07-11 | 2005-02-03 | Umemoto Seisakusho:Kk | Ball joint and universal tripod head |
| CN101279354A (en) * | 2008-05-15 | 2008-10-08 | 宁夏天地奔牛实业集团有限公司 | Method for producing connecting pin forging |
| CN203257860U (en) * | 2013-04-27 | 2013-10-30 | 南京亨发达汽配制造有限公司 | Connecting fork forged blank for universal joint |
| CN204004036U (en) * | 2014-01-20 | 2014-12-10 | 永嘉县正菱精密锻造有限公司 | Fork is in transmission connection |
Non-Patent Citations (1)
| Title |
|---|
| 杜方孟等: ""高速列车用扭转臂脱碳层控制方法研究", 《机车车辆工艺》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108284137A (en) * | 2017-12-25 | 2018-07-17 | 常州市胜彪标准件模具有限公司 | A kind of cold extruding processing method of machine components shape requirement straight slot |
| CN111957877A (en) * | 2020-07-14 | 2020-11-20 | 沈阳和世泰通用钛业有限公司 | Forging forming method for vehicle cross arm |
| CN111957877B (en) * | 2020-07-14 | 2022-05-03 | 沈阳和世泰通用钛业有限公司 | Forging forming method for vehicle cross arm |
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Application publication date: 20170215 |
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