CN107442714A - Structural steel aluminum alloy dual-metal ring parts rolling forming method - Google Patents
Structural steel aluminum alloy dual-metal ring parts rolling forming method Download PDFInfo
- Publication number
- CN107442714A CN107442714A CN201710704367.5A CN201710704367A CN107442714A CN 107442714 A CN107442714 A CN 107442714A CN 201710704367 A CN201710704367 A CN 201710704367A CN 107442714 A CN107442714 A CN 107442714A
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- China
- Prior art keywords
- structural steel
- ring
- rolling
- aluminium alloy
- billet
- Prior art date
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- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 52
- 238000005096 rolling process Methods 0.000 title claims abstract description 46
- 229910000746 Structural steel Inorganic materials 0.000 title claims abstract description 43
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 22
- 239000002184 metal Substances 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000004080 punching Methods 0.000 claims abstract description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 229910045601 alloy Inorganic materials 0.000 claims description 8
- 239000000956 alloy Substances 0.000 claims description 8
- 238000009413 insulation Methods 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 2
- 241000208340 Araliaceae Species 0.000 claims 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 claims 1
- 235000003140 Panax quinquefolius Nutrition 0.000 claims 1
- 235000008434 ginseng Nutrition 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 description 5
- 229910052729 chemical element Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical group 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
Abstract
The invention discloses a kind of structural steel aluminum alloy dual-metal ring parts rolling forming method, its step is：First respectively by structural steel, rods and bars of aluminium alloy jumping-up, punching, pre-rolling into structural steel ring billet and aluminium alloy ring billet, the outside that structural steel ring billet is enclosed on to aluminium alloy ring billet is placed on looping mill and rolled together, obtains structural steel aluminum alloy dual-metal ring.This method derives rolling deformation drag ratio by bimetallic rolling ratio, determines rolling deformation temperature, carries out roll forming so as to be heated separately to corresponding temperature, obtains the good bimetallic ring of performance, size.This method is used for bimetallic ring parts rolling forming.
Description
Technical field
The present invention relates to a kind of looping mill rolling roll-forming method, is rolled more particularly to structural steel-aluminum alloy dual-metal ring
Manufacturing process processed.
Background technology
Bimetallic ring is the compound ring being made up of two kinds of different metals, passes through various modifications and connection skill between ring
Art is combined closely, and inside and outside ring will not separate under external force.Compared with single ferrule piece, bimetallic ring can be abundant
Two kinds of respective optimum performances of metal are played, not only with combination properties such as excellent physics, chemistry, mechanics, can also be saved
A large amount of precious metals, reduce production cost, thus bimetallic ring be widely used in machinery, automobile, train, ship, metallurgy,
The industrial circles such as chemical industry, the energy, Aero-Space.At present, the main manufacture methods of bimetallic ring are to first pass through ring rolling work
Skill distinguishes two monometallic rings of roll forming, then two monometallic ring combinations are assembled into bimetallic ring.Due to two
Monometallic ring separates roll forming, causes this method process more, wastes time and energy, low production efficiency.And two of roll forming
When monometallic ring is combined assembling, elastic deformation or small plastic deformation only occur for ring contact interface, so as to cause the party
The bimetallic ring interracial contact of method manufacture is of poor quality, and bonding strength is low, it is impossible to meets high performance double metal ring military service performance
With the requirement of service life.
Bimetallic ring rolling, which refers to two kinds of metal ring billets being nested together, to be rolled, in the operation of rolling, due to metal
The factor such as characteristic of the resistance of deformation with temperature and material in itself it is relevant, it is easy to cause deformation uneven, and cause rolling to be lost
Lose.
The content of the invention
The technical problem to be solved in the present invention is to provide it is a kind of using control deformation process in metal material deformation temperature,
The roll forming of bimetallic ring is realized, obtains the good bimetallic ring of performance, size.
In order to solve the above technical problems, structural steel of the present invention-aluminum alloy dual-metal ring parts rolling forming method, its skill
Art scheme comprises the following steps：
Structural steel, aluminium alloy are cutting into bar by certain specification respectively, then by jumping-up, punching, pre-rolling into knot
Structure steel loop base and aluminium alloy ring billet, the internal diameter of structural steel ring billet are equal to the external diameter of aluminium alloy ring billet；Structural steel ring billet is added respectively
Aluminium alloy ring billet is heated to 420 ± 10 DEG C of insulations by heat to 820 ± 10 DEG C of insulations；Structural steel ring billet is enclosed on aluminium alloy ring billet
Outside be placed on looping mill and rolled together, obtain structural steel-aluminum alloy dual-metal ring, wherein, structural steel ring
It is K to roll ratio1, aluminium alloy rings rolling compare for K2；K1/K2=σs/σs', in formula, σsResist for structural steel ring billet rolling deformation
Power, σs' it is aluminium alloy ring billet rolling deformation drag.
The structural steel ring billet rolling deformation drag is σs=n σ0, wherein, n is structural steel at a temperature of corresponding deformation is rolled
Thermal parameter coefficient, σ0For the resistance of deformation of structural steel at normal temperatures.
The aluminium alloy ring billet rolling deformation drag is σs'=n ' σ0', wherein, n ' is aluminium alloy in rolling corresponding deformation temperature
Thermal parameter coefficient under degree, σ0' it is the resistance of deformation of aluminium alloy at normal temperatures.
The structural steel is 40CrNiMoA steel.
The aluminium alloy is 2A70 alloys.
Compared with prior art, beneficial effects of the present invention are as follows：
Structural steel of the present invention-aluminum alloy dual-metal ring parts rolling forming method, first according to bimetallic ring most
Whole size, design structure steel loop base and aluminium alloy ring billet, and determine that K is compared in the rolling of structural steel ring and aluminium alloy rings respectively1、
K2, further according to K1/K2=σs/σs' determine structural steel ring billet and aluminum alloy rolled resistance of deformation σs、σs', so that it is determined that structure steel loop
The heating-up temperature of part and aluminium alloy rings.At the corresponding temperature, structural steel ring billet and aluminium alloy ring billet are nested together rolling, from
And obtain the good bimetallic ring of performance, size.
Brief description of the drawings
The present invention is described in further detail with reference to the accompanying drawings and detailed description.
Fig. 1 is bi-metal rolling process schematic.
Embodiment
Implementing structural steel of the present invention-aluminum alloy dual-metal ring parts rolling forming method needs to provide Forge Heating
The equipment such as stove, forcing press, manipulator.For so that China's material trademark is 40CrNiMoA structural steel and 2A70 aluminium alloys as an example
The embodiment of bright this method：
The main chemical elements content (percentage by weight) of the 40CrNiMoA steel is：C content 0.36%~0.44%, contain
Mn amounts 0.50%~0.80%, si content 0.17%~0.37%, amount containing S≤0.020%, P content≤0.020%, amount containing Cr
0.60%~0.90%, ni content 1.25%~1.75%, amount containing Mo 0.15%~0.25%, surplus Fe.
The main chemical elements content (percentage by weight) of the 2A70 alloys is：Amount containing Mn≤0.2%, si content≤
0.35%th, ni content 0.9%~1.5%, amount containing Ti 0.02%~0.1%, amount containing Cu 1.9%~2.5%, amount containing Fe 0.9%
~1.5%, amount containing Mg 1.4%~1.8%, amount containing Zn≤0.3%, surplus Al.
The step of this method, is as follows：
40CrNiMoA steel, 2A70 alloys are cutting into bar by certain specification respectively, then by jumping-up, punching, roll in advance
40CrNiMoA steel loops base 4 and 2A70 alloys ring billet 5 is made, the internal diameter of 40CrNiMoA steel loops base 4 is equal to 2A70 alloys ring billet 5
External diameter；40CrNiMoA steel loops base 4 is heated to 820 ± 10 DEG C of insulations respectively, 2A70 alloys ring billet 5 is heated to 420 ± 10 DEG C
Insulation；The outside that 40CrNiMoA steel loops base 4 is enclosed on to 2A70 alloys ring billet 5 is placed on looping mill and rolled together, such as Fig. 1
It is shown, structural steel-aluminum alloy dual-metal ring is obtained, wherein, the rolling of structural steel ring is compared for K1, aluminium alloy rings rolling
Than for K2；K1/K2=σs/σs', in formula, σsFor structural steel ring billet rolling deformation drag, σs' resist for aluminium alloy ring billet rolling deformation
Power.
The rolling deformation drag of structural steel ring billet 4 is σs=n σ0, wherein, n is structural steel in rolling corresponding deformation temperature
Under thermal parameter coefficient, σ0For the resistance of deformation of structural steel at normal temperatures.
The rolling deformation drag of aluminium alloy ring billet 5 is σs'=n ' σ0', wherein, n ' is aluminium alloy in rolling corresponding deformation
At a temperature of thermal parameter coefficient, σ0' it is the resistance of deformation of aluminium alloy at normal temperatures.
Claims (5)
1. a kind of structural steel-aluminum alloy dual-metal ring parts rolling forming method, it is characterised in that comprise the following steps：
Structural steel, aluminium alloy are cutting into bar by certain specification respectively, then by jumping-up, punching, pre-rolling into structural steel
Ring billet and aluminium alloy ring billet, the internal diameter of structural steel ring billet are equal to the external diameter of aluminium alloy ring billet；Structural steel ring billet is heated to respectively
820 ± 10 DEG C of insulations, aluminium alloy ring billet is heated to 420 ± 10 DEG C of insulations；Structural steel ring billet is enclosed on the outer of aluminium alloy ring billet
Face is placed on looping mill and rolled together, obtains structural steel-aluminum alloy dual-metal ring, wherein, the rolling of structural steel ring
Than for K1, aluminium alloy rings rolling compare for K2；K1/K2=σs/σs', in formula, σsFor structural steel ring billet rolling deformation drag, σs′
For aluminium alloy ring billet rolling deformation drag.
2. structural steel according to claim 1-aluminum alloy dual-metal ring parts rolling forming method, it is characterised in that described
Structural steel ring billet rolling deformation drag is σs=n σ0, wherein, n is thermal parameter system of the structural steel at a temperature of corresponding deformation is rolled
Number, σ0For the resistance of deformation of structural steel at normal temperatures.
3. structural steel according to claim 1-aluminum alloy dual-metal ring parts rolling forming method, it is characterised in that described
Aluminium alloy ring billet rolling deformation drag is σs'=n ' σ0', wherein, n ' is heating power ginseng of the aluminium alloy at a temperature of corresponding deformation is rolled
Number system number, σ0' it is the resistance of deformation of aluminium alloy at normal temperatures.
4. structural steel according to claim 1-aluminum alloy dual-metal ring parts rolling forming method, it is characterised in that described
Structural steel is 40CrNiMoA steel.
5. structural steel according to claim 1-aluminum alloy dual-metal ring parts rolling forming method, it is characterised in that described
Aluminium alloy is 2A70 alloys.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611093593 | 2016-12-01 | ||
| CN2016110935936 | 2016-12-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107442714A true CN107442714A (en) | 2017-12-08 |
Family
ID=60491331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710704367.5A Pending CN107442714A (en) | 2016-12-01 | 2017-08-16 | Structural steel aluminum alloy dual-metal ring parts rolling forming method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107442714A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54102278A (en) * | 1978-01-31 | 1979-08-11 | Mitsubishi Heavy Ind Ltd | Composite working device for ring body |
| SU822960A1 (en) * | 1979-07-04 | 1981-04-23 | Предприятие П/Я Г-4585 | Method of expanding shaped rings |
| CN1586754A (en) * | 2004-09-21 | 2005-03-02 | 武汉理工大学 | Process for rolling and forming external step section ring piece |
| CN101829745A (en) * | 2010-04-23 | 2010-09-15 | 武汉理工大学 | Cold ring rolling forming method for double-flute section ring |
| CN102125972A (en) * | 2010-12-10 | 2011-07-20 | 贵州安大航空锻造有限责任公司 | Method for rolling and shaping structural steel high cylindrical ring forged piece |
| CN103042142A (en) * | 2013-01-15 | 2013-04-17 | 武汉理工大学 | Precise roll forming method for bimetallic rings |
| CN103111564A (en) * | 2013-02-06 | 2013-05-22 | 武汉理工大学 | Precise roll forming method of bimetal tubular part |
| CN105195714A (en) * | 2015-09-23 | 2015-12-30 | 太原科技大学 | Method for casting, rolling and forming inner layer Q345B and outer layer 40 chromium (Cr) composite rings |
-
2017
- 2017-08-16 CN CN201710704367.5A patent/CN107442714A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54102278A (en) * | 1978-01-31 | 1979-08-11 | Mitsubishi Heavy Ind Ltd | Composite working device for ring body |
| SU822960A1 (en) * | 1979-07-04 | 1981-04-23 | Предприятие П/Я Г-4585 | Method of expanding shaped rings |
| CN1586754A (en) * | 2004-09-21 | 2005-03-02 | 武汉理工大学 | Process for rolling and forming external step section ring piece |
| CN101829745A (en) * | 2010-04-23 | 2010-09-15 | 武汉理工大学 | Cold ring rolling forming method for double-flute section ring |
| CN102125972A (en) * | 2010-12-10 | 2011-07-20 | 贵州安大航空锻造有限责任公司 | Method for rolling and shaping structural steel high cylindrical ring forged piece |
| CN103042142A (en) * | 2013-01-15 | 2013-04-17 | 武汉理工大学 | Precise roll forming method for bimetallic rings |
| CN103111564A (en) * | 2013-02-06 | 2013-05-22 | 武汉理工大学 | Precise roll forming method of bimetal tubular part |
| CN105195714A (en) * | 2015-09-23 | 2015-12-30 | 太原科技大学 | Method for casting, rolling and forming inner layer Q345B and outer layer 40 chromium (Cr) composite rings |
Non-Patent Citations (2)
| Title |
|---|
| 程懿麒: "轧制变形抗力的计算", 《科技资讯》 * |
| 贺毓辛等: "《轧制理论若干问题》", 31 January 1983 * |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20171208 |