CN106825496A - A kind of wrought aluminium alloy workpiece casting forging unification moulding process - Google Patents
A kind of wrought aluminium alloy workpiece casting forging unification moulding process Download PDFInfo
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- CN106825496A CN106825496A CN201611170446.4A CN201611170446A CN106825496A CN 106825496 A CN106825496 A CN 106825496A CN 201611170446 A CN201611170446 A CN 201611170446A CN 106825496 A CN106825496 A CN 106825496A
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- aluminium alloy
- wrought aluminium
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D18/00—Pressure casting; Vacuum casting
- B22D18/02—Pressure casting making use of mechanical pressure devices, e.g. cast-forging
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/09—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting by using pressure
- B22D27/11—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting by using pressure making use of mechanical pressing devices
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Abstract
The present invention relates to Al alloy parts manufacturing technology field, a kind of wrought aluminium alloy workpiece casting forging unification moulding process is disclosed, comprised the following steps：A, mould matched moulds, the wrought aluminium alloy injection die cavity of liquid；Wrought aluminium alloy first time natural cooling in b, die cavity, forcing press is logical to carry out first time extrusion forming, is made workpiece crude green body；Second natural cooling of wrought aluminium alloy in c, die cavity, the heating arrangements heating in mould；Liquid wrought aluminium alloy third time natural cooling in d, die cavity, forcing press carries out second extrusion forming, is made wrought aluminium alloy workpiece；E, wrought aluminium alloy workpiece natural cooling, upper die and lower die depart from, and take out wrought aluminium alloy workpiece.The complete wrought aluminium alloy workpiece for meeting mechanical property requirements that the technique of present invention casting forging unification is directly produced, eliminate semi-finished product link, subsequent mechanical processing link is eliminated, the manufacture efficiency of wrought aluminium alloy product is greatly improved, manufacturing cost is reduced.
Description
Technical field
Unify into the present invention relates to Al alloy parts manufacturing technology field, more particularly to a kind of casting forging of wrought aluminium alloy workpiece
Type technique.
Background technology
Aluminium alloy can be divided into cast aluminium alloy gold and wrought aluminium alloy according to processing mode difference.Cast aluminium alloy gold can lead to
Casting is crossed, precision workpiece does not use cast aluminium alloy gold casting typically, and the content ratio of silicon becomes in cast aluminium alloy gold
Height in shape aluminium alloy, cast aluminium alloy gold is more crisp, therefore the intensity of cast aluminium alloy gold and poor, the advantage of cast aluminium alloy gold of reviving
It is direct casting, is molded low cost；Wrought aluminium alloy items mechanical property is superior to cast aluminium alloy gold, but deforms aluminium
Alloy needs, by hot procedures such as melting, cast, ingot, extruding, forgings, to produce wrought aluminium alloy semi-finished product, then
Finished workpart, the mechanical property of the finished workpart that wrought aluminium alloy is made are processed into by lathe, milling machine, cutting, engraving etc. again
The workpiece of cast aluminium alloy gold casting can be better than.The characteristics of aluminium alloy also has light weight, therefore it is usually used in field of aerospace.Example
If the seat support on aircraft is exactly to be manufactured using wrought aluminium alloy, wrought aluminium alloy is made sheet material, then by cutting, engraving
Machine engraving is made seat support, and the various mechanical properties of seat support can meet requirement.
But wrought aluminium alloy needs first to manufacture semi-finished product, finished product is then made by following process, production efficiency is than casting
Cause type much lower, subsequent machining cost is very big；If by wrought aluminium alloy directly using casting by the way of straight forming, into
Workpiece mechanical property after type is remarkably decreased, it is impossible to meet strength demand.Therefore, the shaping effect of wrought aluminium alloy how is improved
Rate, reduction processing cost are an emphasis and difficult point.
The content of the invention
The present invention is in order to solve the problems, such as that wrought aluminium alloy processing efficiency of the prior art is low, high processing costs, there is provided
A kind of wrought aluminium alloy workpiece casting forging unification moulding process, is directly produced by the technique and meets the complete of mechanical strength
Workpiece, eliminates semi-finished product manufacture and its subsequent processing operations, greatly improves the manufacture efficiency of workpiece while reducing processing
Cost.
To achieve these goals, the present invention is adopted the following technical scheme that：
A kind of wrought aluminium alloy workpiece casting forging unification moulding process, it is characterized in that, comprise the following steps：A, mould matched moulds, 750 DEG C
The wrought aluminium alloy injection die cavity of liquid above；Mould includes lower mould, upper mould, forms die cavity after upper mould and lower mould matched moulds, institute
The bottom for stating lower mould is provided with feed liquor runner, and die cavity adjusting slider is provided with upper mould, and outer end and the forcing press of die cavity adjusting slider connect
Connect, upper mould is provided with some spout holes with the junction of lower mould, and heating arrangements and temperature sensor, temperature sensor are provided with mould
For detecting the temperature at mould intracavity wall；Wrought aluminium alloy first time natural cooling in b, die cavity, temperature sensor is detected
When temperature is 480 DEG C -500 DEG C, forcing press carries out first time extrusion forming by die cavity adjusting slider to wrought aluminium alloy, is made
Workpiece crude green body, unnecessary wrought aluminium alloy is extruded from spout hole in die cavity；Second nature of wrought aluminium alloy in c, die cavity
Cooling, temperature sensor detect temperature for 420 DEG C -440 DEG C when, forcing press is remained stationary as, the heating of heating arrangements in mould,
When temperature sensor detects temperature and reaches 500 DEG C -520 DEG C, heating arrangements stop heating；Liquid deformation aluminium in d, die cavity is closed
Golden third time natural cooling, temperature sensor detect temperature for 400 DEG C -420 DEG C when, forcing press by promote die cavity adjust slide
Block carries out second extrusion forming to wrought aluminium alloy, is made wrought aluminium alloy workpiece；E, wrought aluminium alloy workpiece natural cooling
During to less than 50 DEG C, die cavity adjusting slider resets, and upper die and lower die depart from, and takes out wrought aluminium alloy workpiece.
Liquid wrought aluminium alloy injection die cavity after, first time natural cooling temperature to 480 DEG C -500 DEG C, the temperature be by
Temperature at near-lying mode cavity wall, the temperature of wrought aluminium alloy middle part is 530 DEG C or so, and wrought aluminium alloy mixes in solid-liquid
State, first time extrusion forming, mainly to workpiece pre-setting, while unnecessary raw material is squeezed out；Naturally cool to for the second time
At 420 DEG C -440 DEG C, the temperature of wrought aluminium alloy middle part is 470 DEG C or so, then to the quick heating of mould, near die cavity
Wrought aluminium alloy at inwall preferentially absorbs heat intensification, is 500 DEG C -520 DEG C, wrought aluminium alloy when temperature sensor detects temperature
The temperature of middle part is 500 DEG C or so, then carries out third time and naturally cools to 400 DEG C -420 DEG C, the now change in die cavity
The temperature at each position of shape aluminium alloy tends to uniform, then carries out second extrusion forming；The deformation that secondary extrusion shaping is made
Al alloy parts interior mechanics stable performance, disclosure satisfy that mechanical requirements, and wrought aluminium alloy workpiece accuracy is high, without follow-up
Processing, greatly improves manufacture efficiency, reduces manufacturing cost.
Preferably, forcing press first time extrusion forming pressure is 50-60MPa, second extrusion forming pressure of forcing press
It is 70-75MPa.Second when extruding, and has deformed that aluminium alloy temperature is relatively low, pressure increase, so as to improve wrought aluminium alloy workpiece
Precision.
Preferably, in step d, post forming is made after wrought aluminium alloy workpiece, wrought aluminium alloy workpiece nature
When being cooled to 300 DEG C -320 DEG C, forcing press carries out third time extruding by die cavity adjusting slider to wrought aluminium alloy workpiece.3rd
Before secondary extruding, the wrought aluminium alloy in die cavity be fully cured it is qualitative, by third time extrude so that wrought aluminum alloy surface
Dimensional accuracy improve.
Preferably, forcing press third time squeeze pressure is 80-100MPa.
Preferably, in step a, the pre-heat treatment is carried out after mould matched moulds, preheating temperature is 220 DEG C -250 DEG C, preheating
Time is 30s-50s.By mould the pre-heat treatment, prevent liquid wrought aluminium alloy enter after die cavity quickly with mould heat exchange,
Wrought aluminium alloy is caused to be close to the excessive temperature differentials at mould intracavity wall with middle part.
Preferably, it is the grain refiner of 0.3%-0.5% that mass ratio is added in liquid wrought aluminium alloy.Crystal grain refinement
Agent makes crystal grain refinement during wrought aluminium alloy cooled and solidified, can improve dense structure's property, improve mechanical property.
Preferably, described grain refiner is AlTi.AlTi reacts with the aluminium in the wrought aluminium alloy of liquid
TiAl3 particles are formed, TiAl3 particles are distributed in whole alloy solution under the convection action of alloy solution, aobvious so as to play
The Grain refinement of work.
Preferably, mould outside is provided with supersonic generator, whole mould is placed in ultrasonic wave.Ultrasonic wave is deformation aluminium
Alloy solution provides energy so that the grain movement in wrought aluminium alloy is more violent, and crystal grain distribution is more uniform, after shaping
Mechanical property, the mechanical performance of wrought aluminium alloy workpiece are more stablized.
Therefore, the complete wrought aluminium alloy workpiece that directly produces of technique of present invention casting forging unification, eliminate partly into
Product link, eliminates subsequent mechanical processing link, greatly improves the manufacture efficiency of wrought aluminium alloy product, reduces manufacture
Cost, the wrought aluminium alloy workpiece that traditional handicraft is manufactured is reached by the mechanical property of wrought aluminium alloy workpiece obtained in this technique
Performance.
Brief description of the drawings
Fig. 1 is the structural representation of mould in the present invention.
In figure：Lower mould 1, upper mould 2, die cavity 3, feed liquor runner 4, die cavity adjusting slider 5, forcing press 6, spout hole 7, heater
Structure 8, temperature sensor 9.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and detailed description：
Embodiment 1：A kind of wrought aluminium alloy workpiece casting forging unification moulding process, comprises the following steps：
A, mould matched moulds, carry out the pre-heat treatment after mould matched moulds, preheating temperature is 220 DEG C -250 DEG C, and preheating time is 30s-
50s, the wrought aluminium alloy injection die cavity of more than 750 DEG C of liquid；As shown in figure 1, mould include lower mould 1, upper mould 2, upper mould with
Die cavity 3 is formed after lower mould matched moulds, the bottom of lower mould is provided with feed liquor runner 4, die cavity adjusting slider 5, die cavity regulation are provided with upper mould
The outer end of sliding block is connected with forcing press 6, and upper mould is provided with some spout holes 7 with the junction of lower mould, and heating arrangements 8 are provided with mould
With temperature sensor 9, temperature sensor is for detecting the temperature at mould intracavity wall；
Wrought aluminium alloy first time natural cooling in b, die cavity, temperature sensor detect temperature for 480 DEG C -500 DEG C when, this
When die cavity centre wrought aluminium alloy temperature be 530 DEG C or so, forcing press by die cavity adjusting slider to deformation aluminium close
Gold carries out first time extrusion forming, is made workpiece crude green body, and forcing press first time extrusion forming pressure is 50-60MPa, many in die cavity
Remaining wrought aluminium alloy is extruded from spout hole；Second natural cooling of wrought aluminium alloy in c, die cavity, temperature sensor inspection
Measure temperature for 420 DEG C -440 DEG C when, now the temperature of the wrought aluminium alloy in die cavity centre be 470 DEG C or so, forcing press
Remain stationary as, the heating of heating arrangements in mould, when temperature sensor detects temperature and reaches 500 DEG C -520 DEG C, heating arrangements
Stop heating, now the temperature of the wrought aluminium alloy in die cavity centre is 500 DEG C or so；Liquid deformation aluminium in d, die cavity is closed
Golden third time natural cooling, temperature sensor detect temperature for 400 DEG C -420 DEG C when, the now deformation aluminium in die cavity centre
The temperature of alloy is 410 DEG C or so, and the temperature at each position of wrought aluminium alloy in chamber tends to uniform, and forcing press is by promoting mould
Chamber adjusting slider carries out second extrusion forming to wrought aluminium alloy, is made wrought aluminium alloy workpiece, and forcing press is extruded for second
Briquetting pressure is 70-75MPa；Post forming is made after wrought aluminium alloy workpiece, and wrought aluminium alloy workpiece naturally cools to 300
At DEG C -320 DEG C, forcing press carries out third time extruding to wrought aluminium alloy workpiece by die cavity adjusting slider, and forcing press is for the third time
Squeeze pressure is 80-100MPa；When e, wrought aluminium alloy workpiece naturally cool to less than 50 DEG C, die cavity adjusting slider resets, on
Mould, lower mould depart from, and take out wrought aluminium alloy workpiece.
Embodiment 2：It is the crystal grain refinement of 0.3%-0.5% that mass ratio is added in liquid wrought aluminium alloy in melting furnace
Agent, grain refiner is AlTi, and supersonic generator is set on the outside of mould, and whole mould is placed in ultrasonic wave；To contain
The liquid wrought aluminium alloy injection die cavity of grain refiner, remaining step is same as Example 1.
The complete wrought aluminium alloy workpiece that the technique of present invention casting forging unification is directly produced, eliminates semi-finished product ring
Section, eliminates subsequent mechanical processing link, greatly improves the manufacture efficiency of wrought aluminium alloy product, reduces and is manufactured into
This, the wrought aluminium alloy workpiece that traditional handicraft is manufactured is reached by the mechanical property of wrought aluminium alloy workpiece obtained in this technique
Performance.
Claims (8)
1. moulding process is unified in a kind of wrought aluminium alloy workpiece casting forging, it is characterized in that, comprise the following steps：
A, mould matched moulds, the wrought aluminium alloy injection die cavity of more than 750 DEG C of liquid；Mould includes lower mould, upper mould, and upper mould is with
Die cavity is formed after mould matched moulds, the bottom of the lower mould is provided with feed liquor runner, die cavity adjusting slider is provided with upper mould, die cavity regulation is slided
The outer end of block is connected with forcing press, and upper mould is provided with some spout holes with the junction of lower mould, and heating arrangements and temperature are provided with mould
Degree sensor, temperature sensor is used to detect the temperature at mould intracavity wall；
Wrought aluminium alloy first time natural cooling in b, die cavity, temperature sensor detect temperature for 480 DEG C -500 DEG C when, pressure
Power machine carries out first time extrusion forming by die cavity adjusting slider to wrought aluminium alloy, is made workpiece crude green body, unnecessary in die cavity
Wrought aluminium alloy is extruded from spout hole；
Second natural cooling of wrought aluminium alloy in c, die cavity, temperature sensor detect temperature for 420 DEG C -440 DEG C when, pressure
Power machine is remained stationary as, the heating of heating arrangements in mould, when temperature sensor detects temperature and reaches 500 DEG C -520 DEG C, heating
Mechanism stops heating；
Liquid wrought aluminium alloy third time natural cooling in d, die cavity, temperature sensor detects temperature for 400 DEG C -420 DEG C
When, forcing press carries out second extrusion forming by promoting die cavity adjusting slider to wrought aluminium alloy, is made wrought aluminium alloy work
Part；
When e, wrought aluminium alloy workpiece naturally cool to less than 50 DEG C, die cavity adjusting slider resets, and upper die and lower die depart from, and takes out
Wrought aluminium alloy workpiece.
2. a kind of wrought aluminium alloy workpiece casting forging unification moulding process according to claim 1, it is characterized in that, forcing press the
Extrusion forming pressure is 50-60MPa, and second extrusion forming pressure of forcing press is 70-75MPa.
3. moulding process is unified in a kind of wrought aluminium alloy workpiece casting forging according to claim 1 and 2, it is characterized in that, in step
In rapid d, post forming is made after wrought aluminium alloy workpiece, when wrought aluminium alloy workpiece naturally cools to 300 DEG C -320 DEG C, pressure
Power machine carries out third time extruding by die cavity adjusting slider to wrought aluminium alloy workpiece.
4. a kind of wrought aluminium alloy workpiece casting forging unification moulding process according to claim 3, it is characterized in that, forcing press the
Three squeeze pressures are 80-100MPa.
5. moulding process is unified in a kind of wrought aluminium alloy workpiece casting forging according to claim 1, it is characterized in that, in step a
In, the pre-heat treatment is carried out after mould matched moulds, preheating temperature is 220 DEG C -250 DEG C, and preheating time is 30s-50s.
6. moulding process is unified in a kind of wrought aluminium alloy workpiece casting forging according to claim 1, it is characterized in that, liquid deformation
It is the grain refiner of 0.3%-0.5% that mass ratio is added in aluminium alloy.
7. moulding process is unified in a kind of wrought aluminium alloy workpiece casting forging according to claim 6, it is characterized in that, described crystalline substance
Grain fining agent is AlTi.
8. moulding process is unified in a kind of wrought aluminium alloy workpiece casting forging according to claim 6 or 7, it is characterized in that, mould
Outside is provided with supersonic generator, and whole mould is placed in ultrasonic wave.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107866541A (en) * | 2017-11-22 | 2018-04-03 | 昆山篙陵兴金属制品有限公司 | A kind of metal shock-proof dynamic pressure casting device |
| CN109420765A (en) * | 2017-08-25 | 2019-03-05 | 波音公司 | The high-strength aluminum alloy manufactured for addition is modified using grain refiner |
| CN111014579A (en) * | 2019-12-31 | 2020-04-17 | 浙江嘉兴南湖电子器材集团有限公司 | Magnetic steel blank forming device |
| CN111715863A (en) * | 2020-07-01 | 2020-09-29 | 深圳市北工实业有限公司 | Extrusion casting and micro-forging integrated forming method and die casting system |
| CN111790894A (en) * | 2019-04-08 | 2020-10-20 | 巧新科技工业股份有限公司 | Forming method of aluminum alloy cast-forged rim for mobile carrier and casting mold thereof |
| CN116020983A (en) * | 2022-12-08 | 2023-04-28 | 中国原子能科学研究院 | Solidification characteristic simulation device for neutron residual stress spectrometer |
| CN117161351A (en) * | 2023-09-08 | 2023-12-05 | 常州市凯宏铝业有限公司 | Extrusion molding process of liquid forging deformed aluminum alloy |
| CN117300627A (en) * | 2023-11-03 | 2023-12-29 | 陕西多伦科技发展有限公司 | Metal integrated processing device, method and equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109420765A (en) * | 2017-08-25 | 2019-03-05 | 波音公司 | The high-strength aluminum alloy manufactured for addition is modified using grain refiner |
| CN107866541A (en) * | 2017-11-22 | 2018-04-03 | 昆山篙陵兴金属制品有限公司 | A kind of metal shock-proof dynamic pressure casting device |
| CN111790894A (en) * | 2019-04-08 | 2020-10-20 | 巧新科技工业股份有限公司 | Forming method of aluminum alloy cast-forged rim for mobile carrier and casting mold thereof |
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| CN111014579B (en) * | 2019-12-31 | 2022-01-04 | 浙江嘉兴南湖电子器材集团有限公司 | Magnetic steel blank forming device |
| CN111715863A (en) * | 2020-07-01 | 2020-09-29 | 深圳市北工实业有限公司 | Extrusion casting and micro-forging integrated forming method and die casting system |
| CN116020983A (en) * | 2022-12-08 | 2023-04-28 | 中国原子能科学研究院 | Solidification characteristic simulation device for neutron residual stress spectrometer |
| CN116020983B (en) * | 2022-12-08 | 2023-08-18 | 中国原子能科学研究院 | Solidification characteristic simulation device for neutron residual stress spectrometer |
| CN117161351A (en) * | 2023-09-08 | 2023-12-05 | 常州市凯宏铝业有限公司 | Extrusion molding process of liquid forging deformed aluminum alloy |
| CN117161351B (en) * | 2023-09-08 | 2024-03-01 | 常州市凯宏铝业有限公司 | Extrusion molding process of liquid forging deformed aluminum alloy |
| CN117300627A (en) * | 2023-11-03 | 2023-12-29 | 陕西多伦科技发展有限公司 | Metal integrated processing device, method and equipment |
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Denomination of invention: A Forming Process of Casting Forging Integration for Deformed Aluminum Alloy Workpieces Effective date of registration: 20230904 Granted publication date: 20180803 Pledgee: Zhejiang Tailong Commercial Bank Co.,Ltd. Jinhua Lanxi Sub branch Pledgor: ZHEJIANG TIANYA JIANGTAO POWER Co.,Ltd. Registration number: Y2023980055073 |
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