CN109604926A - Steel blank constructs interface healing method - Google Patents
Steel blank constructs interface healing method Download PDFInfo
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- CN109604926A CN109604926A CN201811350464.XA CN201811350464A CN109604926A CN 109604926 A CN109604926 A CN 109604926A CN 201811350464 A CN201811350464 A CN 201811350464A CN 109604926 A CN109604926 A CN 109604926A
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- steel blank
- pressure maintaining
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- interface
- deflection
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P6/00—Restoring or reconditioning objects
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
The present invention provides a kind of steel blanks to construct interface healing method.Method includes the following steps: step 1: the good steel blank of soldering and sealing being heated, and makes to construct interface and is located at horizontal direction；Step 2: smooth anvil upsetting is used, and avoids wrong anvil, the jumping-up mode is as follows: used disposable depressed fast first, then carry out pressure maintaining；Step 3: melting down, and is diffused connection by heating, keeps the temperature after samming；Step 4: forging and controls total deformation.Steel blank construction method of the invention is used in combination by special jumping-up mode and heating diffusion connection, is efficiently solved the healing problems that steel blank constructs interface, is significantly improved and subsequent construct molding yield rate.
Description
Technical field
The invention belongs to field of material processing, in particular to a kind of steel blank constructs interface healing method.
Background technique
Constructing forming technique is a kind of newly developed technology.During steel blank constructs molding, adopted between steel blank
It is linked together with soldering and sealing, but there are a large amount of intermittence interfaces for inside, these intermittence interfaces can quilt in subsequent forging process
It is considered as internal flaw, the healing of these internal flaws needs just to be able to achieve by the multiway forging of large deformation.However, large deformation is forged
It makes and steel blank is be easy to cause to generate forge crack, easily cause to crack, cause to construct molding failure, it is therefore necessary to develop one kind
The method for promoting steel blank to construct interface healing.
Summary of the invention
The above problem present in molding is constructed to solve current steel blank, the present invention provides a kind of steel blanks to construct boundary
Face healing process.Method includes the following steps:
Step 1: the good steel blank of soldering and sealing is heated, and is made to construct interface and be located at horizontal direction；
Step 2: smooth anvil upsetting is used, and avoids wrong anvil, the jumping-up mode is as follows: using disposable depressed fast first,
It pushes deflection and is greater than 30%, pressing time was less than 2 minutes；Then carry out pressure maintaining 20 minutes or more, the deformation in pressure maintaining period
Amount control is between 10~25%；
Step 3: melting down, and is diffused connection by heating, keeps the temperature 12 hours or more after samming；
Step 4: forging make it is each to total deformation not less than 20%, be finally reached required size.
According to one embodiment, can also be performed the following operation 1-2 times between the step 3 and the step 4: under
It pressure 20 minutes or more, melts down, connection is diffused by heating, keeps the temperature 12 hours or more after samming；Under in the operation 1-2 times
The sum of deflection in the total deformation of pressure and the step 2 in pressure maintaining period controls between 10~25%；At the same time,
Deflection in pressure maintaining period described in step 2 can be less than 10%.
According to one embodiment, when the shape of the steel blank is hourglass shape, the jumping-up mode can also use with
Under type replaces: using disposable depressed fast first, pushes deflection and be greater than 15%, pressing time was less than 2 minutes；Then into
Row pressure maintaining 20 minutes or more, the deformation amount controlling in pressure maintaining period was between 5~20%.
According to one embodiment, the steel blank can be stainless steel blank or carbon steel blank.
Further, the shape of the steel blank can be cuboid, cube or cylindrical body.
Steel blank construction method of the invention is used in combination by what special jumping-up mode and heating diffusion connected, is effectively solved
Steel blank of having determined constructs the healing problems at interface, significantly improves and subsequent constructs molding yield rate.
Detailed description of the invention
Fig. 1 is the jumping-up schematic diagram according to the embodiment of the present invention.
Fig. 2 is to construct the processed steel blank of interface healing method without steel blank of the invention to construct interface electron microscope.
Fig. 3 is to construct the processed steel blank of interface healing method without steel blank of the invention to construct interface micrograph.
Fig. 4 is to construct the processed steel blank of interface healing method by steel blank of the invention to construct interface electron microscope.
Appended drawing reference: the good steel blank of 1. soldering and sealing, flat anvil on 2., 3. lower flat anvils.
Specific embodiment
Below with reference to the embodiments and with reference to the accompanying drawing the technical solutions of the present invention will be further described.
In the following detailed description, for convenient for explain, elaborate many concrete details with provide to the present invention implement
The comprehensive understanding of example.It should be apparent, however, that one or more embodiments without these specific details can also be by reality
It applies.
Although in conjunction with attached drawing, the present invention is described, and embodiment disclosed in attached drawing is intended to reality of the invention
The mode of applying illustrates, and should not be understood as to a kind of limitation of the invention.
Steel blank of the invention construct interface healing method the following steps are included:
Step 1: the good steel blank of soldering and sealing is heated, and is made to construct interface and be located at horizontal direction；
Step 2: smooth anvil upsetting is used, and avoids wrong anvil, the jumping-up mode is as follows: using disposable depressed fast first,
It pushes deflection and is greater than 30%, pressing time was less than 2 minutes；Then carry out pressure maintaining 20 minutes or more, the deformation in pressure maintaining period
Amount control is between 10~25%；
Step 3: melting down, and is diffused connection by heating, keeps the temperature 12 hours or more after samming；
Step 4: forging make it is each to total deformation not less than 20%, be finally reached required size.
As Figure 2-3, before constructing the processing of interface healing method without steel blank of the invention, exist between steel blank
Sharp interface.Then, it constructs interface healing method using steel blank of the invention to be handled, with disposable quick large deformation
Pushing-pressure maintaining-heating diffusion connection alternating action, interface are faded away, and the oxide particle of interface gradually decreases, boundary
Face bond strength is continuously improved；Simultaneously because the generation of large deformation, can generate recrystallization.When total deformation is accumulative close to 50%
When, as shown in figure 4, interface completely disappears, recrystallization degree is abundant, and bond strength significantly improves.
Emphasis of the invention is the use of above-mentioned jumping-up mode and heating diffusion connection.By the study found that passing through one
The alternating action of connection is spread in secondary property large deformation depressed fast-pressure maintaining-heating, in addition the synergistic effect between each parameter, energy
Enough under the premise of ensuring that steel blank does not crack, promotes steel blank to construct interface and effectively healing occurs.
Since with the presence of a large amount of gaps and interface, wrong anvil will lead to distal end warping and cracking, therefore interface among steel blank
Wrong anvil should be strictly avoided in upsetting process before all healed.
In step 5, forging make it is each be conducive to inside not less than 20% to total deformation and homogenize, further decrease cracking
Risk.
It according to an example, can also perform the following operation 1-2 times: push between the step 3 and the step 4
It 20 minutes or more, melts down, connection is diffused by heating, keeps the temperature 12 hours or more after samming；It is pushed in the operation 1-2 times
Total deformation and the step 2 in the control of the sum of deflection in pressure maintaining period between 10~25%；At the same time, it walks
Deflection in pressure maintaining period described in rapid two can be conducive to preferably promote to construct interface healing less than 10%.
According to an example, when the shape of the steel blank is hourglass shape, the jumping-up mode can also use following
Mode replaces: using disposable depressed fast first, pushes deflection and be greater than 15%, pressing time was less than 2 minutes；Then it carries out
Pressure maintaining 20 minutes or more, the deformation amount controlling in pressure maintaining period was conducive to preferably promote to construct interface and be cured between 5~15%
It closes.
According to an example, the steel blank can be stainless steel blank or carbon steel blank.
Further, the shape of the steel blank can be cuboid, cube or cylindrical body, i.e., steel blank of the invention
It is relatively broad to construct the applicable blank shape of interface healing method.
Embodiment 1
It constructs interface healing method using steel blank of the invention to handle the stainless steel blank of certain cube, this is stainless
Steel blank long 1000mm, wide 1000mm, high 1500mm, processing step are as follows:
One, by the good stainless steel blank heating of soldering and sealing to 1240 ± 20 DEG C, and make to construct interface and be located at horizontal direction；
Two, stainless steel blank is placed on 10000 tons of hydraulic press stations for being equipped with heat-preservation cotton, with smooth anvil upsetting, and
Wrong anvil is avoided, the jumping-up mode is as follows: first using disposable depressed fast, pushing deflection 35%, pressing time 30 seconds；
Then pressure maintaining 30 minutes, the deflection in pressure maintaining period are 25%；
Three, it melts down, is heated to 1240 ± 20 DEG C and is diffused connection, keep the temperature 24 hours after samming；
Four, the total deformation 40% for making three directions of length, width and height by forging repeatedly, is finally reached required size.
Embodiment 2
It constructs interface healing method using steel blank of the invention to handle the stainless steel blank of certain cylindrical body, this is stainless
Steel blank basal diameter is 800mm, a height of 1600mm, and processing step is as follows:
One, by the good stainless steel blank heating of soldering and sealing to 1200 ± 20 DEG C, and make to construct interface and be located at horizontal direction；
Two, stainless steel blank is placed on 10000 tons of hydraulic press stations for being equipped with heat-preservation cotton, with smooth anvil upsetting, and
Wrong anvil is avoided, the jumping-up mode is as follows: first using disposable depressed fast, pushing deflection 35%, pressing time 1 divides
Clock；Then pressure maintaining 20 minutes, the deflection in pressure maintaining period are 10%；
Three, it melts down, is heated to 1200 ± 20 DEG C and is diffused connection, keep the temperature 12 hours after samming；
Four, it pushes 25 minutes, melts down, be heated to 1200 ± 20 DEG C and be diffused connection, keep the temperature 12 hours after samming；It pushes
Deflection is 10%；
Five, the total deformation 20% for making radial dimension and height by forging repeatedly, is finally reached required size.
Embodiment 3
It constructs interface healing method using steel blank of the invention to handle certain cuboid carbon steel blank, the carbon steel base
Expect long 1000mm, wide 800mm, high 1800mm, processing step is as follows:
One, by the good carbon steel blank heating of soldering and sealing to 1100 ± 20 DEG C, and make to construct interface and be located at horizontal direction；
Two, carbon steel blank is placed on 10000 tons of hydraulic press stations for being equipped with heat-preservation cotton, with smooth anvil upsetting, and is kept away
Fault-avoidance anvil, the jumping-up mode are as follows: first use disposable depressed fast, push deflection 30%, pressing time 1 minute；
Then pressure maintaining 25 minutes, the deflection in pressure maintaining period are 10%；
Three, it melts down, is heated to 1100 ± 20 DEG C and is diffused connection, keep the temperature 15 hours after samming；
Four, it performs the following operation 2 times: pushing 20 minutes, pushing deflection is 7%；Melt down, be heated to 1100 ± 20 DEG C into
Row diffusion connects, and keeps the temperature 15 hours after samming；
Five, the total deformation 30% for making three directions of length, width and height by forging repeatedly, is finally reached required size.
To embodiment 1-3, treated that steel blank is tested, as the result is shown: constructing interface through steel blank of the invention and be cured
After the processing of conjunction method, the interface inside steel blank is completely disappeared, and interface bond strength reaches base material matrix strength, while not occurring
Blank problem of Cracking obtains and good constructs interface healing effect.
Although some embodiments of general plotting have been shown and have illustrated according to the present invention, however, ordinary skill
Personnel should be understood that in the case where the principle and spirit without departing substantially from the present general inventive concept, can make to these embodiments
Change, the scope of the present invention is limited with claim and their equivalent.
Claims (6)
1. a kind of steel blank constructs interface healing method, it is characterised in that method includes the following steps:
Step 1: the good steel blank of soldering and sealing is heated, and is made to construct interface and be located at horizontal direction；
Step 2: smooth anvil upsetting is used, and avoids wrong anvil, the jumping-up mode is as follows: using disposable depressed fast first, pushed
Deflection is greater than 30%, and pressing time was less than 2 minutes；Then carry out pressure maintaining 20 minutes or more, the deflection control in pressure maintaining period
System is between 10~25%；
Step 3: melting down, and is diffused connection by heating, keeps the temperature 12 hours or more after samming；
Step 4: forging make it is each to total deformation not less than 20%, be finally reached required size.
2. steel blank according to claim 1 constructs interface healing method, it is characterised in that: the step 3 with it is described
It can also be performed the following operation 1-2 times between step 4: push 20 minutes or more, it melts down, connection is diffused by heating,
12 hours or more are kept the temperature after temperature；Change in the total deformation and the step 2 pushed in the operation 1-2 times in pressure maintaining period
The sum of shape amount controls between 10~25%；At the same time, the deflection in pressure maintaining period described in step 2 can be less than
10%.
3. steel blank according to claim 1 constructs interface healing method, it is characterised in that: when the shape of the steel blank
When for hourglass shape, the jumping-up mode can also replace in the following ways: use disposable depressed fast, lower compressive strain first
Amount is greater than 15%, and pressing time was less than 2 minutes；Then carry out pressure maintaining 20 minutes or more, the deformation amount controlling in pressure maintaining period is 5
Between~20%.
4. steel blank according to claim 3 constructs interface healing method, it is characterised in that: in the step 3 and institute
Stating can also perform the following operation 1-2 times between step 4: push 20 minutes or more, it melts down, connection is diffused by heating,
12 hours or more are kept the temperature after samming；In the total deformation and the step 2 pushed in the operation 1-2 times in pressure maintaining period
The sum of deflection controls between 5~20%；At the same time, the deflection in pressure maintaining period described in step 2 can be less than
5%.
5. steel blank described in -4 constructs interface healing method according to claim 1, it is characterised in that: the steel blank is stainless
Steel blank or carbon steel blank.
6. steel blank according to claim 1 or 2 constructs interface healing method, it is characterised in that: outside the steel blank
Shape is cuboid, cube or cylindrical body.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110458506.7A CN113523707B (en) | 2018-11-14 | 2018-11-14 | Method for healing deformation of construction interface |
| CN201811350464.XA CN109604926B (en) | 2018-11-14 | 2018-11-14 | Steel blank construction interface healing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811350464.XA CN109604926B (en) | 2018-11-14 | 2018-11-14 | Steel blank construction interface healing method |
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| CN202110458506.7A Division CN113523707B (en) | 2018-11-14 | 2018-11-14 | Method for healing deformation of construction interface |
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| CN109604926A true CN109604926A (en) | 2019-04-12 |
| CN109604926B CN109604926B (en) | 2021-10-15 |
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| CN201811350464.XA Active CN109604926B (en) | 2018-11-14 | 2018-11-14 | Steel blank construction interface healing method |
| CN202110458506.7A Active CN113523707B (en) | 2018-11-14 | 2018-11-14 | Method for healing deformation of construction interface |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111036812A (en) * | 2019-12-27 | 2020-04-21 | 天津重型装备工程研究有限公司 | Method for controlling oxide on bonding interface of metal composite product |
| CN112845744A (en) * | 2021-01-05 | 2021-05-28 | 中国第一重型机械股份公司 | Preparation method of metal solid-solid composite additive blank |
| CN112903954A (en) * | 2021-01-22 | 2021-06-04 | 大连理工大学 | Interface healing performance evaluation method for metal substrate construction forming |
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| CN111036812A (en) * | 2019-12-27 | 2020-04-21 | 天津重型装备工程研究有限公司 | Method for controlling oxide on bonding interface of metal composite product |
| CN111036812B (en) * | 2019-12-27 | 2022-03-01 | 天津重型装备工程研究有限公司 | Method for controlling oxide on bonding interface of metal composite product |
| CN112845744A (en) * | 2021-01-05 | 2021-05-28 | 中国第一重型机械股份公司 | Preparation method of metal solid-solid composite additive blank |
| CN112845744B (en) * | 2021-01-05 | 2022-04-08 | 中国第一重型机械股份公司 | Preparation method of metal solid-solid composite additive blank |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN113523707B (en) | 2022-05-13 |
| CN113523707A (en) | 2021-10-22 |
| CN109604926B (en) | 2021-10-15 |
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