CN104785690B - The forging method of GH4169 alloy pole - Google Patents
The forging method of GH4169 alloy pole Download PDFInfo
- Publication number
- CN104785690B CN104785690B CN201510237521.3A CN201510237521A CN104785690B CN 104785690 B CN104785690 B CN 104785690B CN 201510237521 A CN201510237521 A CN 201510237521A CN 104785690 B CN104785690 B CN 104785690B
- Authority
- CN
- China
- Prior art keywords
- forging
- passage
- deflection
- blank
- width
- 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.)
- Active
Links
Landscapes
- Forging (AREA)
Abstract
The invention belongs to the forging field of high temperature alloy is and in particular to a kind of forging method of GH4169 pole.The present invention provides a kind of forging method of GH4169 alloy pole, and by the way of two fire are become a useful person, in the middle of the first fiery one-tenth using flat die hammer cogging, blank and the second fire adopt and beat specification product needed for top fuller head finish forge becomes.The inventive method solves the problems, such as the problem not enough using the unreasonable surface quality difference brought of the forging crack causing because temperature drop is too fast easily occurring in existing forging technology and forging coupling and the strain of whole forging process center, after making forging, pole perficial helical stricture of vagina is greatly reduced, and substantially increases flaw detection qualification rate.
Description
Technical field
The invention belongs to the forging field of high temperature alloy is and in particular to a kind of forging method of GH4169 pole.
Background technology
GH4169 alloy alloy is the γ with body-centered tetragonal " and the Ni-based height of face-centred cubic γ ' phase precipitation strength
Temperature alloy, has good combination property in -253～700 DEG C of temperature ranges, and less than 650 DEG C of yield strength occupies deformation height
The first place of temperature alloy, and there is good resisting fatigue, radioprotective, antioxidation, decay resistance, and good processing characteristics,
Welding performance and chronic tissue stability, can manufacture the parts of variously-shaped complexity, in Aeronautics and Astronautics, the energy, chemical industry etc.
Industrial department obtains a wide range of applications,
GH4169 alloy forging rod can be directly used for manufacturing the structural members such as the axle using in aviation it can also be used to manufacture pipe
Blank.Mainly using accurate radial forging unit, domestic more advanced equipment is mainly from Austria for the production of this alloy forging rod
GFM company and German western mark company introduce.Accurate radial forging is by four tups being arranged symmetrically up and down, tup one
As have two sets, flat die be used for cogging, top fuller head be used for finish forge finished product pole.
At present, the forging technology of GH4169 typically has two kinds, and the first is to adopt one-heating forming, that is, adopt and beat top fuller head,
Blank is directly forged into specification product；The method, due to being one-heating forming, simplifies production technology, but in forging process
Temperature drop is too fast, while so that forging force is increased, easily causes forging rod cracking, furthermore, this mode of texturing is saturating to the forging at ingot casting center
Property weaker, center deformation not cause excessive grain thick or metallurgical imperfection cannot seam and detect a flaw and do not conform to.Second side
Method is to be become a useful person using two fire, first adopts quick forging machine blank forging to be become middle base, then by middle base again after blank heating
The laggard finish forge unit of secondary heating, forges into specification product；This kind of mode improves the final quality forging pole, but due to wanting
Using different production units, increased logistics cost and time.Both the above forging mode all can in follow-up precision forging process
Cause the situation of surface quality difference due to the unreasonable coupling of technological parameter.
Content of the invention
The present invention is directed to drawbacks described above, provides a kind of forging method of GH4169 alloy pole, the method should drop
Too fast temperature drop during low forging, increases center portion eliminating deformation metallurgical imperfection again, finally also will obtain excellent surface quality.
Technical scheme：
The present invention provides a kind of forging method of GH4169 alloy pole, by the way of two fire are become a useful person, the first fire
Middle blank and the second fire are become using beating specification product needed for top fuller head finish forge becomes using flat die hammer cogging, wherein：
In first fiery hammer cogging operation, forged using radial forging unit, carried out 5～7 passages altogether, in forging
Under the passage deformation that power can bear, each passage thickness direction and width drafts alternately reach the maximum allowable change of single pass
Shape amount, passage second from the bottom needs after terminating to ensure that sotck thinkness is identical with width dimensions, last passage thickness and width side
Drafts is identical upwards；Before extreme trace time, tup does not rotate, and during extreme trace time, blank rotates 45 ° it is ensured that blank in the middle of after the completion of forging
Cross section is octagon；During whole hammer cogging, feed rate keeps constant；
Second fire adopts to be beaten in specification product operation needed for top fuller head finish forge becomes：Carry out 4～6 passages, feed rate control altogether
System is between 3.0～4.5m/min, and feed rate reduces by passage；The anglec of rotation the first two passage select 13 °～
14.0 °/time, afterwards several passages select 14.5 °/time～15 °/time, meanwhile, pass deformation controls between 30～55mm, front
The deflection of two passages is more than the deflection of rear several passages.
Preferably, radial forging unit includes at least 4 tups.
Further, described each passage short transverse and width drafts alternately reach the maximum allowable deflection of single pass
Refer to：First passage makes it deform from the pressure of the thickness direction of blank to reach the maximum allowable deflection of single pass, and width is hammered into shape
Motionless；Second passage makes it deform from the pressure of the width of blank to reach the maximum allowable deflection of single pass, thickness direction
Tup is motionless；Back pass is so repeatedly.
Further, the deflection of the relatively rear several passages of the deflection of the first two passage is more than or equal to 20mm.
Beneficial effects of the present invention：
The invention discloses a kind of forging method of GH4169 pole.The method uses radial forging unit, by formulating
Rational cogging and forging, solve using the forging causing because temperature drop is too fast easily occurring in general forging technology
Make problem of Cracking and the unreasonable surface quality difference brought of forging coupling and whole forging process center strains deficiency
Problem, after making forging, pole perficial helical stricture of vagina is greatly reduced, and substantially increases flaw detection qualification rate.
Specific embodiment
The present invention provides a kind of forging method of GH4169 alloy pole, by the way of two fire are become a useful person, the first fire
Middle blank and the second fire are become using beating specification product needed for top fuller head finish forge becomes using flat die hammer cogging, wherein：
In first fiery hammer cogging operation, forged using radial forging unit, carried out 5～7 passages altogether, in forging
Under the passage deformation that power can bear, each passage thickness direction and width drafts alternately reach the maximum allowable change of single pass
Shape amount, passage second from the bottom needs after terminating to ensure that sotck thinkness is identical with width dimensions, last passage thickness and width side
Drafts is identical upwards；Before extreme trace time, tup does not rotate, and during extreme trace time, blank rotates 45 ° it is ensured that blank in the middle of after the completion of forging
Cross section is octagon；During whole hammer cogging, feed rate keeps constant；
Second fire adopts to be beaten in specification product operation needed for top fuller head finish forge becomes：Carry out 4～6 passages, feed rate control altogether
System is between 3.0～4.5m/min, and feed rate reduces by passage；The anglec of rotation the first two passage select 13 °～
14.0 °/time, afterwards several passages select 14.5 °/time～15 °/time, meanwhile, pass deformation controls between 30～55mm, front
The deflection of two passages is more than the deflection of rear several passages.
In whole precision forging process, feed rate is preferably controlled between 3.0～4.5m/min, and reducing by passage is to control
Control surface quality, is first high based on the first passage deformation temperature soon, deforms easy feature, accelerates forging rhythm, controls temperature drop,
With the increase of forging passage, temperature reduces, and deformation is gradually difficult, reduces forging feed rate on the one hand, reduces forging force, separately
On the one hand it is ensuring that surface quality.
Feed rate is gradually lowered mainly for ensureing surface quality, and secondly forging passage increases, and forging temperature reduces, and becomes
Shape power is big, and feed rate reduces and can reduce forging force；The deformation of the first two passage is big, is on the one hand the deformation force because temperature is higher
Little, achievable moderate finite deformation, latter two passage deformation temperature is relatively low, need to reduce deflection to reduce deformation force, the opposing party
Face considers for control surface quality.
In the present invention, flat die work surface is a plane, and beating top fuller head work surface is arc surface.In the present invention, not special
The process conditions of not restriction adopt prior art.
Preferably, radial forging unit includes at least 4 tups.The present invention is using the radial direction forging at least containing 4 tups
Make unit, Forging Equipment Speed is fast, it is possible to resolve it is adaptable to the cogging of continuous casting billet the problems such as temperature drop.
Further, each passage thickness direction and width drafts alternately reach the maximum allowable deflection of single pass is
Refer to：First passage makes it deform from the pressure of the thickness direction of blank to reach the maximum allowable deflection of single pass, width tup
Motionless；Second passage makes it deform from the pressure of the width of blank to reach the maximum allowable deflection of single pass, and thickness direction is hammered into shape
Motionless；Back pass is so repeatedly.
Middle blank after hammer cogging process of the present invention makes to forge must is fulfilled for octagon, because octagon is more
Close to circle it is easy to forge circular through finish forge first passage.
Further, the deflection of the relatively rear several passages of the deflection of the first two passage is more than more than or equal to 20mm.
The present invention adopts radial forging, according to radial forging practical situation, initially with flat die to blank
Carry out hammer cogging, carry out 5～7 passages altogether, front 4～6 passage tups do not do and rotate, the 5th or the 7th passage blank rotates 45 °,
Ensure forging after the completion of in the middle of billet cross section be octagon, during whole cogging feed rate be held in same constant
Value；Then carry out finish forge using beating top fuller head, select rational processing parameter matching, main include feed rate and the anglec of rotation
Degree, can carry out 4～6 passages and be forged into specification pole.
During whole cogging, thickness direction and width alternately moderate finite deformation, the less side's control of deflection
System is spreaded, and pass deformation controls between 30～55mm, first big after small, after passage second from the bottom forging is over, thickness and width
Equivalently-sized on degree direction, in last passage both direction, drafts is identical, and blank rotates 45 ° and forged；Whole
In precision forging process, feed rate controls between 3.0～4.5m/min, and in addition to the first passage, single pass heavy deformation is first big after small,
Feed rate with forging carrying out by passage reduce (first big after small), the anglec of rotation in the first two rolling pass (high temperature section),
Select 14.0 °/hammer, several passages select 14.5 °/hammer afterwards.
The present invention carries out hammer cogging from flat die, under the passage deformation that forging force can bear, using Shi Ge road
Secondary thickness direction and width drafts alternately reach maximum；For example, for section be 360 (thick) × 330 (wide) blank,
First passage mainly depresses 50mm from thickness direction, and width tup is failure to actuate, and the second passage mainly deforms in the width direction,
For example equally depress 50mm, thickness direction is failure to actuate.So repeatedly, passage second from the bottom need to ensure that forging is over to back pass
Thickness is identical with width dimensions afterwards, i.e. 4 tup actions simultaneously, and final pass blank rotates 45° angle, 4 tup drafts phases
With.Whole cogging process, each forging passage feed rate can keep constant.Thickness and width be can achieve using above-mentioned deformation technique
The alternately moderate finite deformation in direction, is conducive to improving the forging permeability of center portion.
For forging, emphasis considers the coupling of feed rate and the anglec of rotation, it is possible to resolve the serious (table of perficial helical stricture of vagina
Face is of poor quality) and improve center deformation, thus improving flaw detection qualification rate further.
The present invention solves and forges that the temperature drop that occurs of GH4169 pole is too fast using common process, easy forging crack, spy
Not the problems such as wound does not conform to and finished surface is of poor quality.The present invention mainly passes through on existing forging equipment, new by formulating
Cogging technics and forging flow process, thus reach the purpose of solve problem.After the completion of forging, specification product surface quality is good
Good, do not find obvious spiral lamination, flaw detection does not find any defect waves, reaches Eligibility requirements.
Claims (5)
1. the forging method of GH4169 alloy pole is it is characterised in that by the way of two fire are become a useful person, the first fire is using flat
Tup hammer cogging becomes middle blank and the second fire using beating specification product needed for top fuller head finish forge becomes, wherein：
In first fiery hammer cogging operation, forged using radial forging unit, carried out 5～7 passages altogether, in forging force institute
Under the passage deformation that can bear, each passage thickness direction and width drafts alternately reach the maximum allowable deformation of single pass
Amount, passage second from the bottom needs after terminating to ensure that sotck thinkness is identical with width dimensions, last passage thickness and width
Upper drafts is identical；Before extreme trace time, tup does not rotate, during extreme trace time blank rotate 45 ° it is ensured that in the middle of after the completion of forging blank horizontal
Section is octagon；During whole hammer cogging, feed rate keeps constant；
Second fire adopts to be beaten in specification product operation needed for top fuller head finish forge becomes：Carry out 4～6 passages altogether, feed rate controls
Between 3.0～4.5m/min, and feed rate reduces by passage；The anglec of rotation selects 13 °～14 °/time in the first two passage,
Afterwards several passages select 14.5 °/time～15 °/time, meanwhile, pass deformation controls between 30～55mm, the first two passage
Deflection is more than the deflection of rear several passages.
2. the forging method of GH4169 alloy pole according to claim 1 is it is characterised in that described each passage is thick
Degree direction and width drafts alternately reach the maximum allowable deflection of single pass and refer to：First passage is from the thickness side of blank
So that it is deformed to pressure and reach the maximum allowable deflection of single pass, width tup is motionless；Second passage is from the width of blank
Direction pressure makes it deform to reach the maximum allowable deflection of single pass, and thickness direction tup is motionless；Back pass is so repeatedly.
3. the forging method of GH4169 alloy pole according to claim 1 and 2 is it is characterised in that radial forging
Unit includes at least 4 tups.
4. the forging method of GH4169 alloy pole according to claim 1 and 2 is it is characterised in that described finish forge
In operation, the deflection of the relatively rear several passages of deflection of the first two passage is more than or equal to 20mm.
5. the forging method of GH4169 alloy pole according to claim 3 is it is characterised in that described finish forge operation
In, the deflection of the relatively rear several passages of deflection of the first two passage is more than or equal to 20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510237521.3A CN104785690B (en) | 2015-05-12 | 2015-05-12 | The forging method of GH4169 alloy pole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510237521.3A CN104785690B (en) | 2015-05-12 | 2015-05-12 | The forging method of GH4169 alloy pole |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104785690A CN104785690A (en) | 2015-07-22 |
| CN104785690B true CN104785690B (en) | 2017-03-01 |
Family
ID=53551127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510237521.3A Active CN104785690B (en) | 2015-05-12 | 2015-05-12 | The forging method of GH4169 alloy pole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104785690B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105689613B (en) * | 2016-03-25 | 2017-11-07 | 大冶特殊钢股份有限公司 | A kind of extraordinary forging method suitable for super-duplex stainless steel bar |
| CN106424496A (en) * | 2016-11-17 | 2017-02-22 | 山西太钢不锈钢股份有限公司 | Forging method for conducting radial forging on preliminarily rolled square billet |
| CN106363117B (en) * | 2016-11-17 | 2019-03-15 | 攀钢集团攀枝花钢铁研究院有限公司 | The forging method of big specification GH1016 alloy pole |
| CN106378404B (en) * | 2016-11-28 | 2017-12-26 | 山西太钢不锈钢股份有限公司 | A kind of method of GFM1800 tons diameter forging machine forging |
| CN106734795A (en) * | 2016-12-14 | 2017-05-31 | 西部超导材料科技股份有限公司 | A kind of preparation method of niobium GH4169 alloy bar materials high |
| CN110614338B (en) * | 2019-10-30 | 2021-01-26 | 攀钢集团攀枝花钢铁研究院有限公司 | Forging method of GH4169 alloy steel round bar |
| CN111151693B (en) * | 2020-01-21 | 2022-02-22 | 建龙北满特殊钢有限责任公司 | Forming method for forging fillet square steel by precision forging machine |
| CN111922264A (en) * | 2020-06-22 | 2020-11-13 | 大冶特殊钢有限公司 | Radial forging non-rotating forging method |
| CN112453298B (en) * | 2020-11-03 | 2022-05-24 | 成都先进金属材料产业技术研究院有限公司 | Cold working method of high-temperature alloy rod and wire for fastener |
| CN114309409B (en) * | 2021-12-31 | 2024-01-23 | 中航上大高温合金材料股份有限公司 | GH4169 alloy wide flat blank tissue homogenizing forging process |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1402400A1 (en) * | 1985-11-04 | 1988-06-15 | Украинский Научно-Исследовательский Институт Специальных Сталей,Сплавов И Ферросплавов | Method of radial forging |
| SU1655644A1 (en) * | 1988-10-27 | 1991-06-15 | Украинский научно-исследовательский институт специальных сталей, сплавов и ферросплавов | Method of radial forging |
| RU2056205C1 (en) * | 1993-12-27 | 1996-03-20 | Виктор Андреевич ЛАЗОРКИН | Method of forging blank in four-siriker forging apparatus |
| CN102513483B (en) * | 2011-12-07 | 2014-11-05 | 芜湖新兴铸管有限责任公司 | Forging and striking production process for blank with rectangular section |
-
2015
- 2015-05-12 CN CN201510237521.3A patent/CN104785690B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104785690A (en) | 2015-07-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104785690B (en) | The forging method of GH4169 alloy pole | |
| CN103920846B (en) | A kind of high temperature alloy Step Shaft radial forging method | |
| CN1919530A (en) | Manufacturing technique of heavy caliber alloy seamless steel pipe | |
| EP3683006A1 (en) | Forming method for modular metal construction | |
| CN106180535B (en) | A kind of free forging method for improving rotor forging quality | |
| CN107520584A (en) | Profiled metal constructs manufacturing process | |
| WO2019051980A1 (en) | Manufacturing process for large annular forged piece | |
| CN104826968A (en) | GH4169 high-temperature alloy round rod finish forging method | |
| CN106670363A (en) | Manufacturing method for high-strength stainless steel forge piece | |
| CN107470353B (en) | A kind of device and its milling method producing lateral Varying-thickness sketch plate, lateral Varying Thickness Plates band | |
| CN110614338B (en) | Forging method of GH4169 alloy steel round bar | |
| CN105328096A (en) | Forming method of die forging clamps made of titanium alloy | |
| CN103691853B (en) | The roll forming of nickel base superalloy straight-flanked ring base is the method for special-shaped thin wall ring | |
| CN105499920A (en) | Manufacturing method for large-caliber and thick-wall seamless niobium pipes | |
| CN105568195A (en) | Preparation method for high-accuracy and high-strength titanium alloy seamless tubes | |
| CN116656994B (en) | Method for improving shrinkage strain ratio of TA18 titanium alloy seamless tube and TA18 titanium alloy seamless tube | |
| CN107185961A (en) | A kind of preparation method of big specification, thin cladding nickel-base alloy/pipeline steel composite board | |
| CN105397000A (en) | Rolling method of titanium alloy plate-shaped forgings | |
| CN104625627B (en) | A kind of preparation method of plasma rotating electrode titanium alloy electrode rod | |
| CN105441713A (en) | A titanium alloy seamless tube and a manufacturing method thereof | |
| CN103691854B (en) | The roll forming of cobalt base superalloy straight-flanked ring base is the method for special-shaped thin wall ring | |
| CN112536406B (en) | Forging drawing method for avoiding surface cracking | |
| CN115401156A (en) | Forging tool and forging method for semi-steel roller | |
| CN106424496A (en) | Forging method for conducting radial forging on preliminarily rolled square billet | |
| CN106350735B (en) | Think gauge Q450NQR1 steel plates and its roughing method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201113 Address after: 610306, Chengdu, Sichuan, China (Sichuan) free trade test area, Chengdu Town, Qingbaijiang District, Chengxiang Island, No. 1509, xiangdao Avenue, 13 (A1301-1311, 1319) of A District, railway tower. Patentee after: CHENGDU ADVANCED METAL MATERIALS INDUSTRY TECHNOLOGY RESEARCH INSTITUTE Co.,Ltd. Address before: 611731 Chengdu Sichuan hi tech Zone West Park Innovation Group Panzhihua Iron & Steel Group Research Institute Co., Ltd. Patentee before: Pangang Group Research Institute Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 610306 Chengdu City, Chengdu, Sichuan, China (Sichuan) free trade test zone, Chengdu City, Qingbaijiang District, xiangdao Boulevard, Chengxiang Town, No. 1509 (room 13, A District, railway port mansion), room 1319 Patentee after: Chengdu advanced metal material industry technology Research Institute Co.,Ltd. Address before: 610306 Chengdu City, Chengdu, Sichuan, China (Sichuan) free trade test zone, Chengdu City, Qingbaijiang District, xiangdao Boulevard, Chengxiang Town, No. 1509 (room 13, A District, railway port mansion), room 1319 Patentee before: CHENGDU ADVANCED METAL MATERIAL INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE Co.,Ltd. |