CN109365731A - A kind of die forging method of high temperature alloy precision forged blade - Google Patents
A kind of die forging method of high temperature alloy precision forged blade Download PDFInfo
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- CN109365731A CN109365731A CN201811511200.8A CN201811511200A CN109365731A CN 109365731 A CN109365731 A CN 109365731A CN 201811511200 A CN201811511200 A CN 201811511200A CN 109365731 A CN109365731 A CN 109365731A
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- forging
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K3/00—Making engine or like machine parts not covered by sub-groups of B21K1/00; Making propellers or the like
- B21K3/04—Making engine or like machine parts not covered by sub-groups of B21K1/00; Making propellers or the like blades, e.g. for turbines; Upsetting of blade roots
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Abstract
The present invention relates to a kind of forging methods of high temperature alloy precision forged blade, it is characterized in that, shown forging method includes the preparation of extruding, heading, blocking, finish-forging die, the specification and size of famine shape needed for determining blank size, squeezing rod size, heading part size i.e. blocking, the control of the preforming under-voltage amount of die forging, it forges to the size of waste base needed for finish-forging, the whole process of finish-forging.The beneficial effects of the present invention are: by extruding, heading base the stability of waste shape size and interior tissue can be promoted, and improve stock utilization；Blocking is that finish-forging evenly distributes deflection, and nonuniform organization caused by avoiding the final forging of high temperature alloy precision forged blade forging due to deflection is uneven, residual stress are uneven.Precision forged blade forging comprehensive performance and fatigue life are improved, streamline is able to produce out and is distributed along forging shape, the precision forged blade forging of even tissue, excellent combination property reduces the machine-finish allowance of blade and the waste of valuable high-temperature alloy material.
Description
Technical field
The present invention relates to high temperature alloy precision forged blade forging molding technical fields, close more particularly to Ni-based deformation high temperature
The mold design and die-forging forming method of golden precision forged blade.
Background technique
Blade precision forging process technology, in occupation of critical role, has significant economical in contemporary aviation parts machining field
Benefit can foretell that in following production practices, blade precision forging process technology will be more widely applied.With
Equipment, the continuous development of technique and technology and perfect, can be continuously improved using the leaf quality of precision forging.Currently, the world
Various countries generally use the method processing blade of precision forging, using the blade of forging manufacture, after being processed into finished product, blade stream
Line is not influenced by processing, and the integrality of streamline is relatively good, meanwhile, deformation distribution is uniform, can obtain uniform crystal grain, part
Overall mechanical properties it is good.Compared with common blade forging processing technology, the blade shaped using finish forge, streamline edge
The distribution of forging shape, stock utilization is high, reduces the waste of valuable high-temperature alloy material, and forging type face machining allowance is small or zero
Surplus effectively reduces the machining cost of blade.High temperature alloy precision forged blade forming process is complicated, with common die forging phase
Realized in blade than, precision forged blade, back arc, the die forging of the blade forging of tenon and zero surplus of blade tip inner platform or small surplus at
Shape, it is needed using the forging equipment of higher precision, optimal forging technology and forging parameter, and selects optimal deformation technique
Parameter, to obtain optimal mechanical performance and interior tissue.
Summary of the invention
The technical problems to be solved by the present invention are: 1) mold design and service life；2) forming of precision forged blade；3) it keeps away
Exempt from high temperature alloy precision forged blade forging, because more fire time blocking, deflection it is uneven caused by final forging nonuniform organization, residual
Residue stress is uneven.
To solve the above problems, the technical scheme is that extruding+heading+blocking+finish-forging forging method, specifically
Content is as follows:
A kind of forging method of high temperature alloy precision forged blade, the preparation including extruding, heading, blocking, finish-forging die determine
Blank size squeezes rod size, heading part size (specification and size of famine shape needed for blocking), the control of the preforming under-voltage amount of die forging
System is forged to the size of waste base needed for finish-forging, the whole process of finish-forging.
1. preparing finish-forging die, the type chamber of finish-forging die is corresponding to forging shape, is made of upper die and lower die, die joint position
In the centerline of leaf cross-section, such point of mould belongs to curve parting line, and die boundary dimensions are according to equipment die holder type chamber size
And forging largest contours size, choose 180 × 120 × 120mm.
2. the waste shape shape needed for determining blocking according to the design feature of high temperature alloy finish forge turbo blade forging, such as attached drawing
1, attached drawing 2.In extrusion molding, the cross-sectional area of bar is indicated with Ft before squeezing, with the cross-sectional area ∑ for squeezing rear rod portion
Ft indicates that the ratio of Ft and ∑ Ft, referred to as extrusion ratio are indicated with Ψ:The numerical value of ∑ Ft is by finish forge turbo blade
The blade the maximum cross-section area of forging can be obtained multiplied by coefficient 1.15, choose suitable extrusion ratio 4, can calculate bar before squeezing
Cross-sectional area Ft, and then can be calculated the diameter specifications of required bar, it is isometric to convert, the length specification of required bar can be obtained.
3. preparing Preform Die, Preform Die is made of upper die and lower die, and die joint is located at the center line of leaf cross-section
Place.The lower die of Preform Die is equipped with Φ 10 × 10mm positioning pin installation groove, and for installing positioning pin, corresponding is pre-
The upper mold position machine of forging mould adds the groove of 16 × 10mm of Φ out, in order to avoid positioning pin interference forging molding.Type chamber fillet design ratio
Corresponding finish-forging die fillet increases 1.5~3mm, blade cavity design principle: evenly distributes deflection, die shape ruler for finish-forging
Very little same finish-forging die；
4. upset head mould is prepared, each+1mm design of the length and width of famine shape head sizes needed for cavity impression size presses blocking, punching
Head is derived from formed punch, unilateral 0.1~0.3mm with former gap.
5. preparing extrusion die, cavity impression size is designed by selected bar diameter size+1mm, formed punch and former gap
It is derived from formed punch, unilateral 0.1~0.3mm.
6. by high temperature alloy bar one end chamfering, spraying high temperature glass lubrication protective agent is heated to 960~1060 DEG C, will
High temperature alloy bar has one end of chamfering to be put into extrusion die, carries out extrusion forming, takes out extrusion.
7. polish extrusion end face burr, after being reheated to 960~1060 DEG C, in upset head mould carry out heading at
Type forges the dimensions required to waste shape.
8. spraying high temperature glass lubrication protective agent after pair famine shape is polished and is surface-treated, reheats waste shape extremely
960~1060 DEG C, the waste shape after heating is forged Preform Die type is intracavitary, controls under-voltage amount, forging to suitable finish-forging
Size.
9. spraying high temperature glass lubrication protective agent after pair pre- forging is polished and is surface-treated, reheats pre- forging
To 960~1060 DEG C, the pre- forging after heating is forged finish-forging die type is intracavitary, vertical dimension is forged to high temperature alloy whirlpool
In the margin of tolerance required by impeller blade forging drawing.
Blocking and finish-forging die select one kind to have high rigidity and excellent toughness, and surface has outstanding polishing performance, fit
Mould steel for coating and nitrogen treatment.It squeezes and upset head mould is selected a kind of has good whole plasticity, toughness, wear-resisting
The hot die steel of property, harden ability and machining property.
The preheating temperature of all molds is 180 DEG C~230 DEG C, and the duration is 4h or more, related high temperature alloy material
The heating time of material determines according to the heating coefficient and specification of material.
Compared with prior art, the beneficial effects of the present invention are: by squeeze, heading base, can be promoted waste shape size and
The stability of interior tissue, and improve stock utilization；Blocking is that finish-forging evenly distributes deflection, avoids high temperature alloy finish forge
The final forging of blade forging due to deflection is uneven caused by nonuniform organization, residual stress it is uneven.Improve finish forge leaf
Piece forging comprehensive performance and fatigue life are able to produce out streamline and are distributed along forging shape, even tissue, excellent combination property
Precision forged blade forging reduces the machine-finish allowance of blade and the waste of valuable high-temperature alloy material.
Detailed description of the invention
Fig. 1 is waste shape right view before design；
Fig. 2 is waste shape main view before design.
Specific embodiment:
The manufacturing process for implementing nickel base superalloy precision forged blade of the present invention needs to provide forging hot stove, pressure
The equipment such as machine, manipulator.The tool for illustrating this method so that material trademark is the deformation nickel base superalloy of GH4169 as an example below
Body implementation process.
The blade is as follows from the processing step of producing qualified precision forged blade forging is designed into:
Step 1: extruding, heading, blocking, finish-forging die are prepared according to foliar characteristics, shape.
Step 2: base, one end chamfer of GH4169 alloy bar material for pressing specification blanking, the protection of spraying high temperature glass lubrication
Agent is heated to 960~1060 DEG C, and one end that high temperature alloy bar has chamfering is put into extrusion die, carries out extrusion forming, is taken out
Extrusion.Polishing end face burr after being reheated to 960~1060 DEG C, carries out heading molding in upset head mould, forges to required
The size and specification of waste shape；
In step 2 above, it using extruding+heading mode of texturing, can get the waste shape of even tissue, be conducive to final
Forging obtains good tissue and performance.
Step 3: blocking, spraying high temperature glass lubrication protective agent after which is polished and be surface-treated, again plus
Hot famine shape is forged to 960~1060 DEG C, by the waste shape after heating Preform Die type is intracavitary, is forged to the ruler of suitable finish-forging
It is very little.
In above-mentioned steps 3, the main purpose of blocking is to reserve certain under-voltage amount, is the evenly distributed deformation of finish-forging
Amount.
Step 4: spraying high temperature glass lubrication protective agent after the pre- forging is polished and is surface-treated；It reheats pre-
Forging is to 960~1060 DEG C；Pre- forging after heating is forged finish-forging die type is intracavitary, vertical dimension is forged to high temperature and closed
In the margin of tolerance required by golden turbo blade forging drawing.
The GH4169 alloy precision forged blade forging prepared using forging method of the invention, size detection are met drawing and wanted
It asks, is detected through dissection, vertically and horizontally high and low times of section tissue meets agreement and standard requirements to precision forged blade.
Claims (5)
1. a kind of forging method of high temperature alloy precision forged blade, which is characterized in that shown forging method include extrudings, heading, in advance
Forging, the preparation of finish-forging die, the specification and ruler of famine shape needed for determining blank size, squeezing rod size, heading part size i.e. blocking
Very little, the control of the preforming under-voltage amount of die forging is forged to the size of waste base needed for finish-forging, the whole process of finish-forging.
2. forging method as described in claim 1, which is characterized in that specific step is as follows:
Step 1: preparing finish-forging die, the type chamber of finish-forging die is corresponding to forging shape, is made of upper die and lower die, die joint position
In the centerline of leaf cross-section, such point of mould belongs to curve parting line, and die size is according to equipment die holder type chamber size and forging
Part largest contours size determines；
Step 2: the waste shape needed for determining blocking according to the design feature of high temperature alloy finish forge turbo blade forging, in extrusion molding
When, the cross-sectional area of bar is indicated with Ft before squeezing, and is indicated with the cross-sectional area for squeezing rear rod portion with ∑ Ft, the ratio of Ft and ∑ Ft
Value, referred to as extrusion ratio, are indicated with Ψ:The numerical value of ∑ Ft is transversal by the blade maximum of finish forge turbo blade forging
Area can be obtained multiplied by coefficient 1.15, choose Ψ=4, calculate the cross-sectional area Ft of bar before squeezing, and then can be calculated required
The diameter specifications of bar, it is isometric to convert, the length specification of required bar can be obtained；
Step 3: preparing Preform Die, Preform Die is made of upper die and lower die, and die joint is located at the center line of leaf cross-section
The lower die at place, Preform Die is equipped with Φ 10 × 10mm positioning pin installation groove, and for installing positioning pin, corresponding is pre-
The upper mold position machine of forging mould adds the groove of 16 × 10mm of Φ out, in order to avoid positioning pin interference forging molding；Type chamber fillet design ratio
Corresponding finish-forging die fillet increases 1.5~3mm, and blade cavity design principle is that finish-forging evenly distributes deflection, outside Preform Die
The same finish-forging die of shape size；
Step 4: preparing upset head mould, each+1mm design of the length and width of famine shape head sizes needed for cavity impression size presses blocking, punching
Head is derived from formed punch, unilateral 0.1~0.3mm with upset head mould former gap；
Step 5: preparing extrusion die, cavity impression size is designed by selected bar diameter size+1mm, formed punch and extrusion die
Former gap is derived from formed punch, unilateral 0.1~0.3mm；
Step 6: by high temperature alloy bar one end chamfering, spraying high temperature glass lubrication protective agent is heated to 960~1060 DEG C, will
High temperature alloy bar has one end of chamfering to be put into extrusion die, carries out extrusion forming, takes out extrusion；
Step 7: polishing extrusion end face burr, after being reheated to 960~1060 DEG C, in upset head mould carry out heading at
Type forges the dimensions required to waste shape；
Step 8: spraying high temperature glass lubrication protective agent after the famine shape is polished and is surface-treated reheats waste shape extremely
960~1060 DEG C, the waste shape after heating is forged Preform Die type is intracavitary, controls under-voltage amount, forging to suitable finish-forging
Size；
Step 9: spraying high temperature glass lubrication protective agent after the pre- forging is polished and is surface-treated reheats pre- forging
To 960~1060 DEG C, the pre- forging after heating is forged finish-forging die type is intracavitary, vertical dimension is forged to high temperature alloy whirlpool
In the margin of tolerance of impeller blade forging design requirement.
3. forging method as claimed in claim 2, which is characterized in that blocking and finish-forging die, which are selected, has high rigidity and excellent
Toughness, surface have outstanding polishing performance, suitable for the mould steel of coating and nitrogen treatment.
4. forging method as claimed in claim 2, which is characterized in that squeeze and upset head mould is selected with good whole modeling
The hot die steel of property, toughness, wearability, harden ability and machining property.
5. forging method as claimed in claim 2, which is characterized in that the preheating temperature of all molds is 180 DEG C~230 DEG C,
Duration is 4h or more, and the heating time of related high-temperature alloy material determines according to the heating coefficient and specification of material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811511200.8A CN109365731B (en) | 2018-12-11 | 2018-12-11 | Die forging method for high-temperature alloy precision-forged blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811511200.8A CN109365731B (en) | 2018-12-11 | 2018-12-11 | Die forging method for high-temperature alloy precision-forged blade |
Publications (2)
| Publication Number | Publication Date |
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| CN109365731A true CN109365731A (en) | 2019-02-22 |
| CN109365731B CN109365731B (en) | 2020-10-20 |
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| CN201811511200.8A Active CN109365731B (en) | 2018-12-11 | 2018-12-11 | Die forging method for high-temperature alloy precision-forged blade |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110369670A (en) * | 2019-08-08 | 2019-10-25 | 无锡航亚科技股份有限公司 | A kind of forging technology of the blade of aviation engine based on titanium alloy |
| CN112108597A (en) * | 2020-07-22 | 2020-12-22 | 北京钢研高纳科技股份有限公司 | Deformed high-temperature alloy blade forging and precision forging method thereof |
| CN112247037A (en) * | 2020-09-29 | 2021-01-22 | 中国航发动力股份有限公司 | High-temperature alloy die forging forming method |
| CN112743021A (en) * | 2020-12-24 | 2021-05-04 | 陕西宏远航空锻造有限责任公司 | Blank making method for forging compressor rotor blade |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102310154A (en) * | 2011-09-20 | 2012-01-11 | 沈阳黎明航空发动机(集团)有限责任公司 | Die in alloy blade precision forging process |
| CN103009018A (en) * | 2011-09-20 | 2013-04-03 | 沈阳黎明航空发动机(集团)有限责任公司 | Manufacture method for ultra-fine grain and high-intensity alloy blade forged piece |
| CN106507725B (en) * | 2010-12-27 | 2014-04-23 | 沈阳黎明航空发动机(集团)有限责任公司 | A kind of method of high-temperature alloy blades precision form |
| CN107363202A (en) * | 2017-06-30 | 2017-11-21 | 陕西宏远航空锻造有限责任公司 | A kind of forming method of the small surplus blade of nickel base superalloy |
| EP3372700A1 (en) * | 2017-03-10 | 2018-09-12 | MTU Aero Engines GmbH | Method for making forged tial components |
-
2018
- 2018-12-11 CN CN201811511200.8A patent/CN109365731B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106507725B (en) * | 2010-12-27 | 2014-04-23 | 沈阳黎明航空发动机(集团)有限责任公司 | A kind of method of high-temperature alloy blades precision form |
| CN102310154A (en) * | 2011-09-20 | 2012-01-11 | 沈阳黎明航空发动机(集团)有限责任公司 | Die in alloy blade precision forging process |
| CN103009018A (en) * | 2011-09-20 | 2013-04-03 | 沈阳黎明航空发动机(集团)有限责任公司 | Manufacture method for ultra-fine grain and high-intensity alloy blade forged piece |
| EP3372700A1 (en) * | 2017-03-10 | 2018-09-12 | MTU Aero Engines GmbH | Method for making forged tial components |
| CN107363202A (en) * | 2017-06-30 | 2017-11-21 | 陕西宏远航空锻造有限责任公司 | A kind of forming method of the small surplus blade of nickel base superalloy |
Non-Patent Citations (1)
| Title |
|---|
| 李立安: "TC4钛合金静子叶片锻造及成形过程仿真", 《中国优秀硕士学位论文全文数据库 工程科技II辑》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110369670A (en) * | 2019-08-08 | 2019-10-25 | 无锡航亚科技股份有限公司 | A kind of forging technology of the blade of aviation engine based on titanium alloy |
| CN112108597A (en) * | 2020-07-22 | 2020-12-22 | 北京钢研高纳科技股份有限公司 | Deformed high-temperature alloy blade forging and precision forging method thereof |
| CN112247037A (en) * | 2020-09-29 | 2021-01-22 | 中国航发动力股份有限公司 | High-temperature alloy die forging forming method |
| CN112743021A (en) * | 2020-12-24 | 2021-05-04 | 陕西宏远航空锻造有限责任公司 | Blank making method for forging compressor rotor blade |
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| CN109365731B (en) | 2020-10-20 |
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