CN106270270A - A kind of cold compaction process of L-shaped aluminum alloy ring forging - Google Patents
A kind of cold compaction process of L-shaped aluminum alloy ring forging Download PDFInfo
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- CN106270270A CN106270270A CN201610799038.9A CN201610799038A CN106270270A CN 106270270 A CN106270270 A CN 106270270A CN 201610799038 A CN201610799038 A CN 201610799038A CN 106270270 A CN106270270 A CN 106270270A
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- shaped
- forging
- ring forging
- aluminum alloy
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/16—Making other particular articles rings, e.g. barrel hoops
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
- B21H1/00—Making articles shaped as bodies of revolution
- B21H1/06—Making articles shaped as bodies of revolution rings of restricted axial length
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
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- Forging (AREA)
Abstract
The present invention relates to the cold compaction process of a kind of L-shaped aluminum alloy ring forging, the inventive method roll over ring time by L-shaped for annular forging piece Direct Rolling, to size before L-shaped aluminum alloy ring forging machining to cold deformation, it utilizes L-shaped frock to cold pressing, make annular forging piece along short transverse homogeneous deformation, the layout of isometry block can strictly control drafts after aluminum alloy solution, it is effectively increased stock utilization, save production cost, the mechanical property of material and the resistance to corrosion of aluminium alloy have been greatly improved.
Description
Technical field
The present invention relates to forging process field, particularly relate to the cold compaction process of a kind of L-shaped aluminum alloy ring forging.
Background technology
Along with developing rapidly of China's aerospace industry, modern national defense industry and transportation, important stressed member and knot
The lightweight of component, promotes with aluminum more and more higher for the cry of steel, and usage amount and the demand of aluminum alloy forge piece just incrementally increase.
The aluminium alloy condition of heat treatment of some trade mark is that (compression eliminates stress state to T_52 state.It is applicable to solution heat treatment or height
Cool down after temperature molding, eliminate stress by compression, to produce the product of the set deformation volume of 1%～5%), in solution treatment
After end, after needing to cold pressing, then carry out aging strengthening model, to eliminate the solid solution residual stress of aluminium alloy.
Current domestic L-shaped aluminum alloy ring forging is all made as rectangle forging, colds pressing, then carry out at timeliness heat after solid solution
Reason, finally machines L-shaped；So on the one hand, reduce stock utilization, improve production cost；On the other hand also result in
Forging flow lines is destroyed in follow-up machining process, reduces the mechanical property of material, also reduces the anti-corruption of aluminium alloy
Erosion ability.The most existing cold compaction process for L-shaped aluminum alloy ring forging is after rectangular aluminium alloy forging solid solution terminates, 3 hours
Inside carry out segmentation cold deformation, after cold deformation, carry out aging strengthening model, finally machine L-shaped.But above-mentioned cold compaction process one side
Face reduces stock utilization, improves production cost；On the other hand forging flow lines is also resulted in follow-up machining process
Destroyed, reduced the mechanical property of material, also reduced the resistance to corrosion of aluminium alloy.
Summary of the invention
The applicant, for above-mentioned existing issue, has carried out Improvement, it is provided that colding pressing of a kind of L-shaped aluminum alloy ring forging
Method, it not only increases the utilization rate of material, also a saving production cost.
The technical solution adopted in the present invention is as follows:
The cold compaction process of a kind of L-shaped aluminum alloy ring forging, it is characterised in that comprise the following steps:
The first step: blanking: by dimensions blanking on aluminium alloy cast ingot；
Second step: Forge Heating: be warming up to 440 DEG C～470 DEG C in blank is placed on heating furnace, is incubated 20h～25h；
3rd step: base: press WhF method upsetting pull twice, and the round as a ball cake part that is configured to vertically, then punching formed with
The annular forging piece of centre bore；
4th step: melt down for the first time: the 3rd step gained annular forging piece is put back in heating furnace again, heating-up temperature 420 DEG C
～450 DEG C, and it is incubated 4～7h；
5th step: saddle support reaming: utilize round mandrel by annular element reaming to preliminary dimension, make outside described annular forging piece
Circle, endoporus increase, and described annular forging piece height keeps constant；
6th step: second time is melted down: be returned in heating furnace by described annular forging piece, heating-up temperature 400 DEG C～430 DEG C,
And it is incubated 3～4h；
7th step: rolling ring: utilize L-shaped mould, by annular forging piece rolling ring to L-shaped size；
8th step: by the 7th step gained L-shaped annular forging piece air cooling to room temperature；
9th step: machining: by described L-shaped ring forging along each region processing of short transverse to size before colding pressing；
Tenth step: solid solution: described L-shaped ring forging is put into insulation 10～12h after heating furnace is heated to 530～550 DEG C, so
After described L-shaped ring forging is taken out water-cooled from heating furnace,
11st step: cold pressing: described L-shaped ring forging is transferred to 3600T hydraulic press, is carried out by L-shaped frock, isometry block
Segmentation is colded pressing, and colding pressing overlay region a length of 50～100mm in middle L-shaped ring forging surface of colding pressing for twice, until a circle of colding pressing completes, makes
L-shaped ring forging is along each region deformation of short transverse 2.6～3.6%；
12nd step: timeliness: the 11st step gained L-shaped ring forging is put into heating furnace and is heated to 140 DEG C～155 DEG C and protects
Temperature 20～25h, then takes out air cooling to room temperature by L-shaped ring forging from heating furnace；
13rd step: machining: the 12nd step gained L-shaped ring forging is machined to figure paper size.
Its further technical scheme is:
During the tenth step solid solution, described L-shaped ring forging is transferred to water time≤12s from heating furnace, when water-cooled
Water temperature is 70～80 DEG C, and the water time that enters of described L-shaped ring forging is 20～40min；
In the 11st step cold pressure procedure, L-shaped aluminum alloy ring forging, along the short transverse each several part amount of colding pressing be 2.6%～
3.6%；
Described L-shaped frock includes being connected to form one by frock body, the first boss, the second boss, described first boss
With the second boss all with an arc limit, make to be formed between the first boss, the second boss the arc groove for coordinating ring forging.
Accompanying drawing explanation
Fig. 1 is aluminum alloy ring forging structural representation before colding pressing in the present invention.
Fig. 2 is aluminum alloy ring forging structural representation after colding pressing in the present invention.
Fig. 3 is the front view of L-shaped frock in the present invention.
Fig. 4 is the top view of Fig. 3.
Wherein: 1, L-shaped ring forging；101, the first endoporus；2, L-shaped frock；201, the first boss；202, arc groove；
203, the second boss；204, frock body；205, arc limit；3, isometry block.
Beneficial effects of the present invention is as follows:
L-shaped aluminum alloy ring forging by L-shaped for annular forging piece Direct Rolling, is machined to the coldest by the inventive method when rolling over ring
Deforming front size, it utilizes L-shaped frock to cold pressing, makes annular forging piece along short transverse homogeneous deformation, and the layout of isometry block can
Strictly to control drafts after aluminum alloy solution, it is effectively increased stock utilization, has saved production cost, significantly carries
The mechanical property of high material and the resistance to corrosion of aluminium alloy.
Detailed description of the invention
The detailed description of the invention of the present invention is described below.
Embodiment:
The cold compaction process of a kind of L-shaped aluminum alloy ring forging comprises the following steps:
The first step: blanking: by dimensions blanking on aluminium alloy cast ingot；
Second step: Forge Heating: be warming up to 460 DEG C in blank is placed on heating furnace, is incubated 20h；
3rd step: base: press WhF twice shaping of method upsetting pull vertically, round as a ball for cake part, then punching formed with in
The annular forging piece of central hole；
4th step: melt down for the first time: the 3rd step gained annular forging piece is put back in heating furnace again, heating-up temperature 440 DEG C,
Insulation 4h；
5th step: saddle support reaming: utilize round mandrel to annular forging piece reaming to preliminary dimension, make outside annular forging piece
Circle, endoporus increase, and annular forging piece height keeps constant, and the excircle dimension of described annular forging piece is external diameter 1400, internal diameter 900, high
Degree 300mm.
6th step: second time is melted down: be returned in heating furnace by L-shaped ring forging, heating-up temperature 420 DEG C, is incubated 3h；
7th step: rolling ring: utilize L-shaped mould, to L-shaped rolling ring size and obtains L-shaped ring forging 1 by annular forging piece 1 rolling ring.
8th step: by the 7th step gained L-shaped ring forging 1 air cooling to room temperature；
9th step: machining: size before being machined to cold pressing along short transverse by L-shaped ring forging 1, as it is shown in figure 1, L-shaped ring
Forging 1 height value A be 280mm, height value B is 135mm, and before colding pressing, in L-shaped frock 2, the first boss 201 stretches into L-shaped ring
In first endoporus 101 of forging 1 and in hole basal surface formation spacing C of the first endoporus 101, spacing C is 4.35mm.
Tenth step: solid solution: L-shaped ring forging 1 is put into insulation 10h after heating furnace is heated to 530 DEG C, then by L-shaped ring rolling
Part 1 takes out water-cooled from heating furnace, and L-shaped ring forging 1 takes out from heating furnace and the transfer time≤10s of water-cooled, L-shaped ring forging 1
When water-cooled, water temperature is 80 DEG C, and the water time that enters of L-shaped ring forging 1 is 20min.
11st step: as shown in Fig. 2, Fig. 3 and Fig. 4, colds pressing: L-shaped ring forging 1 is transferred to 3600T hydraulic press, passes through L
Shape frock 2, isometry block 3 carry out segmentation and cold pressing, and as shown in Figure 3, Figure 4, above-mentioned L-shaped frock includes by frock body 204, first convex
Platform the 201, second boss 203 is connected to form one, and the first boss 201 and the second boss 203, all with an arc limit 205, make
The arc groove 202 for coordinating L-shaped ring forging 1, above-mentioned first boss 201 is formed between one boss the 201, second boss 203
Height more than the height of the second boss 203.The arc groove 202 of L-shaped frock 2 is coordinated first endoporus in L-shaped ring forging 1
Between the inwall of 101 and the outline of L-shaped ring forging 1, cold pressing for twice the middle L-shaped ring forging 1 surface a length of 50mm in overlay region, directly
To colding pressing, L-shaped ring forging 1 one circle completes；Make L-shaped ring forging 1 along each region deformation of short transverse, its height value A1 be 272mm,
Height value A2 is 131mm；
12nd step: timeliness: the 11st step gained L-shaped ring forging is put into heating furnace and is heated to 140 DEG C and is incubated 20h,
Then L-shaped ring forging 1 is taken out air cooling to room temperature from heating furnace；
13rd step: machining: the 12nd step gained L-shaped ring forging is machined to figure paper size.
Above description is explanation of the invention, is not the restriction to invention, and limited range of the present invention sees right
Requirement, in the case of the basic structure of the present invention, the present invention can make any type of amendment.
Claims (4)
1. the cold compaction process of a L-shaped aluminum alloy ring forging, it is characterised in that comprise the following steps:
The first step: blanking: by dimensions blanking on aluminium alloy cast ingot；
Second step: Forge Heating: be warming up to 440 DEG C～470 DEG C in blank is placed on heating furnace, is incubated 20h～25h；
3rd step: base: pressing WhF method upsetting pull twice, and the round as a ball cake part that is configured to vertically, then punching is formed with center
The annular forging piece in hole；
4th step: melt down for the first time: the 3rd step gained annular forging piece is put back in heating furnace again, heating-up temperature 420 DEG C～450
DEG C, and it is incubated 4～7h；
5th step: saddle support reaming: utilize round mandrel by annular element reaming to preliminary dimension, make described annular forging piece cylindrical,
Endoporus increases, and described annular forging piece height keeps constant；
6th step: second time is melted down: is returned in heating furnace by described annular forging piece, heating-up temperature 400 DEG C～430 DEG C, and protects
Temperature 3～4h；
7th step: rolling ring: utilize L-shaped mould, to L-shaped rolling ring size and obtains L-shaped ring forging by annular forging piece rolling ring；
8th step: by the 7th step gained L-shaped annular forging piece air cooling to room temperature；
9th step: machining: by described L-shaped ring forging along each region processing of short transverse to size before colding pressing；
Tenth step: solid solution: described L-shaped ring forging is put into and is incubated 10～12h after heating furnace is heated to 530～550 DEG C, then will
Described L-shaped ring forging takes out water-cooled from heating furnace,
11st step: cold pressing: described L-shaped ring forging is transferred to 3600T hydraulic press, carries out segmentation by L-shaped frock, isometry block
Colding pressing, colding pressing overlay region a length of 50～100mm in middle L-shaped ring forging surface of colding pressing for twice, until a circle of colding pressing completes, makes L-shaped
Ring forging is along each region deformation of short transverse 2.6～3.6%；
12nd step: timeliness: the 11st step gained L-shaped ring forging is put into heating furnace and is heated to 140 DEG C～155 DEG C and is incubated 20
～25h, then L-shaped ring forging is taken out air cooling to room temperature from heating furnace；
13rd step: machining: the 12nd step gained L-shaped ring forging is machined to figure paper size.
The cold compaction process of a kind of L-shaped aluminum alloy ring forging the most as claimed in claim 1, it is characterised in that: in the tenth step solid solution
During, described L-shaped ring forging is transferred to water time≤12s from heating furnace, and when water-cooled, water temperature is 70～80 DEG C, described L
The water time that enters of shape ring forging is 20～40min.
The cold compaction process of a kind of L-shaped aluminum alloy ring forging the most as claimed in claim 1, it is characterised in that: cold in the 11st step
During pressure, L-shaped aluminum alloy ring forging, is 2.6%～3.6% along the short transverse each several part amount of colding pressing.
The cold compaction process of a kind of L-shaped aluminum alloy ring forging the most as claimed in claim 1, it is characterised in that: described L-shaped frock bag
Including and be connected to form one by frock body, the first boss, the second boss, described first boss and the second boss are all with an arc
Limit, makes to be formed between the first boss, the second boss the arc groove for coordinating ring forging.
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| CN201610799038.9A CN106270270B (en) | 2016-08-31 | 2016-08-31 | A kind of cold compaction process of L-shaped aluminum alloy ring forging |
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| CN201610799038.9A CN106270270B (en) | 2016-08-31 | 2016-08-31 | A kind of cold compaction process of L-shaped aluminum alloy ring forging |
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| CN106270270B CN106270270B (en) | 2018-02-13 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108642410A (en) * | 2018-05-16 | 2018-10-12 | 江苏理工学院 | A kind of process improving aluminum alloy plate materials comprehensive mechanical property |
| CN108687160A (en) * | 2018-05-16 | 2018-10-23 | 江苏理工学院 | A kind of aluminum alloy plate materials treatment process |
| CN108746447A (en) * | 2018-05-16 | 2018-11-06 | 江苏理工学院 | A kind of anticorodal forge piece manufacturing process |
| CN108890218A (en) * | 2018-05-16 | 2018-11-27 | 江苏理工学院 | A kind of high strength heat resistant alloy forge piece manufacturing process |
| CN111618217A (en) * | 2020-06-09 | 2020-09-04 | 无锡派克新材料科技股份有限公司 | Large-size aluminum alloy bar outer diameter structure densification forging method |
| CN111644548A (en) * | 2020-06-12 | 2020-09-11 | 无锡派克新材料科技股份有限公司 | Forging-modifying technology for high-strength homogeneous aluminum alloy forging for spaceflight |
| CN112264565A (en) * | 2020-06-09 | 2021-01-26 | 无锡派克新材料科技股份有限公司 | Manufacturing method of high-performance aluminum alloy cylindrical forging for spaceflight |
| CN112828218A (en) * | 2020-12-31 | 2021-05-25 | 无锡派克新材料科技股份有限公司 | Method for forming large-size thick-section ultrahigh-strength aluminum alloy cylindrical part |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108642410A (en) * | 2018-05-16 | 2018-10-12 | 江苏理工学院 | A kind of process improving aluminum alloy plate materials comprehensive mechanical property |
| CN108687160A (en) * | 2018-05-16 | 2018-10-23 | 江苏理工学院 | A kind of aluminum alloy plate materials treatment process |
| CN108746447A (en) * | 2018-05-16 | 2018-11-06 | 江苏理工学院 | A kind of anticorodal forge piece manufacturing process |
| CN108890218A (en) * | 2018-05-16 | 2018-11-27 | 江苏理工学院 | A kind of high strength heat resistant alloy forge piece manufacturing process |
| CN108687160B (en) * | 2018-05-16 | 2020-02-14 | 江苏理工学院 | Aluminum alloy plate treatment process |
| CN111618217A (en) * | 2020-06-09 | 2020-09-04 | 无锡派克新材料科技股份有限公司 | Large-size aluminum alloy bar outer diameter structure densification forging method |
| CN112264565A (en) * | 2020-06-09 | 2021-01-26 | 无锡派克新材料科技股份有限公司 | Manufacturing method of high-performance aluminum alloy cylindrical forging for spaceflight |
| CN111644548A (en) * | 2020-06-12 | 2020-09-11 | 无锡派克新材料科技股份有限公司 | Forging-modifying technology for high-strength homogeneous aluminum alloy forging for spaceflight |
| CN111644548B (en) * | 2020-06-12 | 2022-04-01 | 无锡派克新材料科技股份有限公司 | Forging-modifying technology for high-strength homogeneous aluminum alloy forging for spaceflight |
| CN112828218A (en) * | 2020-12-31 | 2021-05-25 | 无锡派克新材料科技股份有限公司 | Method for forming large-size thick-section ultrahigh-strength aluminum alloy cylindrical part |
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