CN107234197B - Near net-shaped manufacturing method - Google Patents
Near net-shaped manufacturing method Download PDFInfo
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- CN107234197B CN107234197B CN201610187768.3A CN201610187768A CN107234197B CN 107234197 B CN107234197 B CN 107234197B CN 201610187768 A CN201610187768 A CN 201610187768A CN 107234197 B CN107234197 B CN 107234197B
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- preformed member
- deformation
- deformed
- forging
- increasing material
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 claims abstract description 97
- 239000000463 material Substances 0.000 claims abstract description 51
- 239000013078 crystal Substances 0.000 claims abstract description 48
- 230000008569 process Effects 0.000 claims description 58
- 238000005242 forging Methods 0.000 claims description 55
- 238000000151 deposition Methods 0.000 claims description 6
- 230000008021 deposition Effects 0.000 claims description 5
- 238000010275 isothermal forging Methods 0.000 claims description 5
- 230000008859 change Effects 0.000 claims description 3
- 238000009826 distribution Methods 0.000 claims description 3
- 125000004122 cyclic group Chemical group 0.000 claims 8
- 239000000047 product Substances 0.000 description 30
- 238000005516 engineering process Methods 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 8
- 239000002184 metal Substances 0.000 description 8
- 239000000843 powder Substances 0.000 description 7
- 238000012545 processing Methods 0.000 description 6
- 238000013461 design Methods 0.000 description 3
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 238000007596 consolidation process Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000001186 cumulative effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 229910000883 Ti6Al4V Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
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- 229910000816 inconels 718 Inorganic materials 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 229910001120 nichrome Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 239000010955 niobium Substances 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/02—Die forging; Trimming by making use of special dies ; Punching during forging
- B21J5/025—Closed die forging
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/20—Direct sintering or melting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y10/00—Processes of additive manufacturing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/20—Direct sintering or melting
- B22F10/25—Direct deposition of metal particles, e.g. direct metal deposition [DMD] or laser engineered net shaping [LENS]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/60—Treatment of workpieces or articles after build-up
- B22F10/66—Treatment of workpieces or articles after build-up by mechanical means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
A kind of method comprising: a preformed member is formed with increasing material manufacturing method, which includes a plurality of column crystals with long axis；And it is deformed the preformed member at the deformation direction of certain deformation angle along the long axis with the column crystal.Wherein, range of the deformation angle at 60 degree to 120 degree.
Description
Technical field
It include that preformed member is formed with increases material manufacturing technology and the preformed member is made to generate certain become the present invention relates to one kind
The near net-shaped manufacturing method of the step of shape.
Background technique
After near-net-shape technology refers to part forming, it is only necessary to which a small amount of processing is not necessarily to processing, so that it may as mechanical component
Forming technique.Compared to traditional processing method, near-net-shape technology has machine-finish allowance small, and stock utilization is high, raw
The production period is short, the advantages such as fabrication design flexibility ratio height, so as to substantially reduce manufacturing cost, improves manufacture efficiency and processing
Quality.Based on these technical characterstics, the near-net-shapes such as increasing material manufacturing method technology can meet the high-tech sectors pair such as aerospace
Structural member high-performance, lightweight, integration, the urgent need of Precision Forming Technology are shown in aerospace industry manufacture
Various advantages.
But for certain productions for the very high structural member of performance requirement, directly manufactured with increasing material manufacturing method
The performance of product may be not met by requirement, thus also need the subsequent processing of further progress to improve its performance.However, right
Met more in how to carry out subsequent processing to the preformed member that increasing material manufacturing obtains with obtaining the better product of institutional framework
High performance requirement, there is presently no carry out many research.
Therefore, it is necessary to a kind of new near net-shaped manufacturing methods, to obtain the good product of heterogeneous microstructure.
Summary of the invention
An aspect of of the present present invention provides a method, in the method, forms a preformed member with increasing material manufacturing method,
The preformed member includes a plurality of column crystals with long axis, then makes the preformed member along the long axis with the column crystal
It is deformed at the deformation direction of certain deformation angle.Wherein, range of the deformation angle at 60 degree to 120 degree.
Detailed description of the invention
The embodiment of the present invention is described in conjunction with the accompanying drawings, the present invention may be better understood, in the accompanying drawings:
Fig. 1 shows a kind of process that the cricoid preformed member of vertebra is formed with increasing material manufacturing method.
Fig. 2 shows the crystal grain arrangement of the preformed member formed with method shown in FIG. 1.
Fig. 3 shows the process forged with closed forging die to preformed member shown in Fig. 2.
Fig. 4 shows the product that forging process shown in Fig. 3 is formed.
Fig. 5 shows a kind of process that discoid preformed member is formed with increasing material manufacturing method.
Fig. 6 shows the crystal grain arrangement of the preformed member formed with method shown in Fig. 4.
Fig. 7 shows the process forged with closed forging die to preformed member shown in fig. 5.
Fig. 8 shows the product that forging process shown in Fig. 7 is formed.
Specific embodiment
Unless otherwise defined, the technical term or scientific term used in the present specification and claims is should be
The ordinary meaning that personage in the technical field of the invention with general technical ability is understood.This specification and claims
Used in " first " either " second " and similar word are not offered as any sequence, quantity or importance, and be
For distinguishing different component parts.The similar word such as "one" or " one " is not offered as quantity limitation, but indicates exist
At least one.The language of approximation used herein can be used for quantitative expression, show the case where not changing basic function
Permissible quantity has certain variation down.Therefore, the exact value is not limited to the modified numerical value of the language such as " about ", " left and right " institute
Itself.In addition, " about " corrects the first numerical value and second value two simultaneously in the statement of " the about first numerical value to second value "
Numerical value.In some cases, approximating language may be related with the precision of measuring instrument.Numerical value mentioned in the present invention includes
The increased all numerical value of one unit of a unit from low to high, it is assumed herein that being spaced at least between any lower value and high value
Two units.
All numerical value between minimum to peak enumerated herein, refer to when between minimum and peak
When differing two units or more, all numerical value for being obtained using a unit as increment between minimum and peak.For example, as temperature
The quantity of the similar component such as degree, air pressure, time and the numerical value of process etc., when we say 1 to 90, reference is such as 15 to arrive
85, the similar enumerated value such as 22 to 68,43 to 51,30 to 32.When numerical value is less than 1, a unit can be 0.0001,
0.001,0.01 or 0.1.Here only illustrate as particular examples.The number enumerated herein refers to similar side
The all possible combinations of values between a minimum value and a maximum value that method obtains.
Microstructure and the good product of comprehensive performance are obtained near net-shaped manufacturing method the present embodiments relate to a kind of
Process.In this process, first preforming with the formation one of increasing material manufacturing (additive manufacturing, AM) method
Then part, the shape of the preformed member make the preformed member generate certain deformation close to final products, described pre- to improve
The microstructure and comprehensive performance of molded part, and obtain the shape of required product.
" increasing material manufacturing " as described herein is related to a kind of method manufacture successively to add up based on CAD design data using material
The technology of entity components.The example of specific increasing material manufacturing includes but is not limited to laser energizing method (Laser
Engineered Net Shaping, LENS), rapid manufacturing method (Direct Metal Forming, DMF), laser
Direct manufacturing method (Direct Laser Fabrication, DLF) etc. is related to using high energy beam, such as high-power laser beam,
Powder or silk material are melted, successively up accumulated, realizes the method that material successively adds forming.The direct root of these methods
It is shaped according to the CAD model time processing of component, part microstructure obtained is very thin, and mechanical property is fine.
In embodiments of the present invention, the deformation for making the generation of the preformed member certain is that the material of preformed member is instigated to be sent out
Raw certain flowing.The deformation can be the thermal deformation occurred at high temperature, can also at room temperature or lower than room temperature temperature
Lower " cold " deformation occurred of degree.Making the preformed member that the concrete mode of " cold " deformation occur includes but is not limited to cold pier, cold pressing
Deng.Making the preformed member that the concrete mode of thermal deformation occur includes but is not limited to forge, squeeze out, rolling.Wherein, forging can
So that the densifying materials of the preformed member, and improve the microstructure and comprehensive performance of the preformed member.It can be by appointing
What suitable forging method forges the preformed member, the die forging including but not limited to carried out using mold.Some
In embodiment, the closed die forging (closed die forging) of single step can be carried out to the preformed member with closed forging die.
During the closed die forging, compressing force can be evenly applied to the preformed member by closed forging die, so as to
In the case where keeping the shape of the preformed member to be basically unchanged, improve the performance and/or acquisition of material by mechanically deform
Required shape feature.In some embodiments, using isothermal forging technology, i.e., mold is heated to and is forged
The identical temperature of the deformation temperature of preformed member carries out die forging with low strain rate.Isothermal forging can guarantee in forging process
The plasticity and mobility of material, residual force is small, is formed by preformed member especially suitable for the difficult molding material such as nickel-base alloy.
In embodiments of the present invention, described the process of preformed member and described can be formed with increasing material manufacturing method by controlling
At least one during being deformed preformed member is come so that the forming process of preformed member and the process being deformed
Between cooperation can farthest optimize the microstructure and comprehensive performance of final product obtained.For example, in some realities
Apply in example, can by control the increasing material manufacturing process and it is described be deformed during at least one so that preforming
Column crystal is formed in part, and at certain between the deformation direction (material flow direction) in column crystal long axis direction and deformation process
Angle (deformation angle) obtain metallurgical structure more so that the deformation in deformation process can sufficiently smash column crystal
Uniformly, the more tiny product of crystal grain.In some embodiments, range of the deformation angle at 60 degree to 120 degree, or further
Ground, in 75 degree to 105 degree of range.In some specific embodiments, the deformation angle is about 90 degree, that is, the column
The long axis direction of shape crystalline substance is approximately perpendicular to the deformation direction.
It in some embodiments, can be on the basis of predicting the deformation direction in deformation process, by controlling the increasing material
Manufacturing process meets expected preformed member to obtain column crystal trend and distribution etc., to ensure in preformed member obtained
Shape has a certain degree between deformation direction in the long axis direction of column crystal and the deformation process of precognition, so that subsequent deformation
Process can farthest optimize the microstructure in preformed member.Wherein, the control to increasing material manufacturing process includes pair
The control in stack layers direction, stack layers sequence and at least one of deposition parameter during increasing material manufacturing.For example, with increase material system
In the preformed member for making method acquisition, column crystal would generally be grown along stack layers direction, therefore can be manufactured by controlling material
Stack layers direction in journey controls the trend of column crystal in preformed member, so that the long axis direction of column crystal prolongs along stack layers direction
It stretches.Therefore, can by control increasing material manufacturing during stack layers direction and deformation process in deformation direction between angle,
To control the angle between the trend of column crystal and deformation direction." stack layers direction " described herein refers to during increasing material manufacturing
The direction that material successively adds up." trend of column crystal " described herein refer to column crystal long axis direction either with the long axis
The parallel direction in direction.
In some embodiments, the increasing material manufacturing process can control to make in the preformed member at least 50% volume
In column crystal trend and deformation process in deformation direction between at the deformation angle, or further, at least 60%
At the deformation angle between column crystal trend in volume and the deformation direction in deformation process.
In some embodiments, control can also be passed through on the basis of predicting the column crystal trend and distribution of preformed member
Subsequent deformation process meets expected deformation direction to obtain, crystal grain in the preformed member to ensure the deformation direction and precognition
Shape has a certain degree between trend, and the deformation process is enabled farthest to optimize the microstructure in preformed member.Its
In, the control to deformation process includes the direction etc. of preformed member stress in control deformation process.Make institute by forging
During stating preformed member generation thermal deformation, the control to deformation process may include the design of controlled forge process equipment, forging
Step and preformed member are made with respect at least one of position of forging die etc..
In some embodiments, the deformation process that can control the preformed member, come so that deformation direction and it is described it is pre- at
At least trend of the column crystal of 50% volume is at the deformation angle in type part, or further, in the preformed member extremely
The trend of the column crystal of few 60% volume is at the deformation angle.
In some embodiments, it can control the deformation process of the preformed member, to make in the preformed member at least
The material of 50% volume is along the Direction distortion with column crystal trend at the deformation angle, or further, at least 60%
The material of volume is along the Direction distortion with column crystal trend at the deformation angle.
The preformed member formed with increasing material manufacturing method can be suitable for the increasing material manufacturing process and deformation by any
The material of process is formed, including but not limited to titanium, aluminium, nickel metal or alloy, various steel and stainless steel etc..In some embodiments
In, the preformed member is the semi-finished product or precursor of the components (for example, casing, turbine disk) for aerospace field.In
In some specific embodiments, the preformed member includes titanium alloy (such as Ti6Al4V) the either precipitation hardenable containing niobium, molybdenum
Nichrome (such as Inconel718).
The preformed member can have any suitable shape formed with increasing material manufacturing method, including but not limited to ring
Shape, column, plate-like, cup-shaped or other complicated shapes.In the deformation process, changing for shape may occur for the preformed member
Become, it is also possible to the change of shape not occur substantially.In some embodiments, the product obtained after the deformation process has and institute
State preformed member same shape and size.In some embodiments, the product obtained after the deformation process have with
The preformed member same shape, but its size is reduced than the size of preformed member.In some embodiments, institute
Stating the product obtained after deformation has the shape different from the preformed member.
Fig. 1 shows a kind of process that the cricoid preformed member 110 of vertebra is formed with laser direct deposition method.In the process
In, the preformed member 110 is formed in the outer of jatharapanvartanasana matrix 120 by way of the consolidated metal powder material that successively adds up
On the conical surface 121.Specifically, layer-by-layer along the wall thickness direction (stack layers direction) 111 of preformed member 110 with metal powder nozzle 130
Cumulative metal powder material simultaneously rotates the jatharapanvartanasana base by its consolidation, while along the axial direction 123 of the jatharapanvartanasana matrix 120
Body 120 can ultimately form the preformed member 110 that crystal grain is arranged as shown in Figure 2.As shown in Fig. 2, the preformed member 110 includes edge
Its wall thickness direction arrangement column crystal 113, i.e., the long axis direction of these column crystals 113 is substantially along the wall thickness of preformed member 110
Direction extends.
Fig. 3 shows the process forged with closed forging die 140 to the preformed member 110.The closed forging die 140 wraps
The outer mold piece 143 and 145 of internal module 141 and two-piece type is included, wherein outer mold piece 143 and 145 is pressed together on vertebra ring-type preformed member 110
Outer surface on, internal module 141 can be downwardly against on the inner surface of the vertebra ring-type preformed member 110, and be generated to it certain
It squeezes, so that the vertebra ring-type preformed member 110 generates backward extrusion deformation in forging process, i.e., material is along opposite with extruding
Direction 160 flowing generate deformation.The direction 160 is a week for being approximately perpendicular to the conical ring shape preformed member 110
To, and extend to from the axial first end of the conical ring shape preformed member 110 direction of axial second end.The direction 160 is also substantially
Perpendicular to the wall thickness direction of the preformed member 110.Therefore, deformation direction of the preformed member 110 in forging process be substantially
Perpendicular to the long axis direction of its column crystal 113, so as to farthest smash the column crystal 113, realize by forging zero
The dynamic of component recrystallizes, so that big crystal grain becomes smaller uniformly, obtains the crystal structure of more fine uniform.
It is substantially closed in addition, in the forging process one will can be formed after the module 141,143 and 145 pressing
Die cavity, the die cavity have the shape of required product.Therefore, the forging process is it is also possible that preformed member 110 in die cavity
It is deformed into the shape of die cavity, to obtain the shape of required product.In concrete operations, the internal module 141 and outer mold piece
143 and 145 can be moved by the coupled driving of driving device 151,153 and 155 respectively.Wherein, the external mold
Block 143 and 145 can moving radially along the preformed member 110, the internal module 141 can be along the preformed member 110
Axial movement.When being forged, outer mold piece 143 and 145 can be radially-inwardly pressed on preformed member along preformed member 110
110 outer surface, by internal module 141 along the inner surface for being axially downwardly pressed in preformed member 110 of preformed member 110.It has forged
Cheng Hou, can be along the internal module of removal axially upwards 141 of preformed member 110, along the radially outward opening outer mold piece of preformed member 110
143 and 145.
By the combination of laser direct deposition forming process and forging process shown in Fig. 3 as shown in Figure 1, tool can get
Just like the product 170 of shape shown in Fig. 4, the texture in the product 170 compares the more fine uniform of preformed member 110.
Fig. 5 shows a kind of process that discoid preformed member 210 is formed with laser direct deposition.In this process,
Successively add up consolidated metal powder material by way of by the preformed member 210 be formed in the upper of tabular matrix 220
On surface 221.Specifically, with metal powder nozzle 230 along axial height direction (the stack layers side of discoid preformed member 210
To) 211 layer-by-layer cumulative metal powder materials and by its consolidation, it is as shown in FIG. 6 preforming that crystal grain arrangement can be ultimately formed
Part 210.As shown in fig. 6, the preformed member 210 includes the column crystal 213 of short transverse arrangement axially along, i.e. these columns
The long axis direction of crystalline substance 213 substantially extends along the axial height direction of preformed member 210.
Fig. 7 shows the process forged with closed forging die 240 to the preformed member 210.The closed forging die 240 wraps
Include upper module 241 and lower module 243.In forging process, the upper module 241 and lower module 243 are pressed together on described pre- respectively
On the upper and lower surfaces of molded part 210, and certain extruding is generated to it, so that the preformed member 210 is generated along preforming
The material flowing of radial the 260 of part 210, to be deformed.The direction 260 is approximately perpendicular to the axial direction of the preformed member 210
Short transverse, therefore, deformation direction of the preformed member 210 in forging process are approximately perpendicular to the length of its column crystal 213
Axis direction, so as to farthest smash the column crystal 213, realization is recrystallized by the dynamic of forging components, is made
It obtains big crystal grain to become smaller uniformly, obtains the crystal structure of more fine uniform.In addition, will be described upper and lower in the forging process
Module 241 and 243 can form the die cavity being substantially closed after pressing, which has the shape of required product.Therefore, described
Forging process is it is also possible that the preformed member 210 in die cavity is deformed into the shape of die cavity, to obtain the shape of required product.
By the combination of laser direct deposition forming process and forging process shown in Fig. 7 as shown in Figure 5, tool can get
Just like the product 270 of shape shown in Fig. 8, the texture in the product 270 compares the more fine uniform of preformed member 210.
In some embodiments, the forging process can will be forged using isothermal forging technology before implementing forging
Mould and preformed member to be forged are heated to identical temperature, for example, the temperature of a transformation temperature lower than the preformed member.
Therefore, forging process, which can comprise the following steps that, is heated to one lower than the transformation temperature for the preformed member and forging die respectively
Forging temperature；And die closing forging is carried out to the preformed member under the forging temperature and under certain pressure with the forging die
It makes to obtain required product.Wherein, the transformation temperature of the preformed member can be measured by the methods of metallographic method.
In some embodiments, it to the product obtained after the forging and can also post-process, with further improvement production
The microstructure of product promotes the comprehensive performance of product.It therefore, after forging can also be by following steps to forging production obtained
Product are handled: the product after the forging being kept to a period of time under the forging temperature and pressure, to remove in product
Segmental defect；The product is cooling；The product of the cooling is heated to the temperature for being lower than the forging temperature, and
Kept for a period of time；And the product is cooled to room temperature again.
This specification is described to invent with specific embodiment, including optimal mode, and can help any to be familiar with this hair
The people of bright technique carries out experimental implementation.These operations include using any device and system and using the side of any materialization
Method.The scope of the patents of the invention is defined by claims, and may include other examples occurred in the art.Such as
Other examples described in fruit are in structure from the written language of claims that different or they have and claims
The comparable structure of description, is considered as in the scope of the claims of the invention.
Claims (18)
1. a kind of method for being used to form preformed member comprising:
Preformed member is formed with increasing material manufacturing method, which includes a plurality of column crystals with long axis；And
It is deformed the preformed member at the deformation direction of certain deformation angle along the long axis with the column crystal,
In,
By control the increasing material manufacturing process and it is described be deformed during at least one, come so that the increasing material system
The cooperation between process and the process being deformed is made, the preformed member is allowed to include at least having and institute for 50% volume
Deformation direction is stated into the column crystal of the long axis of the deformation angle, and the deformation angle is in 60 degree to 120 degree of range.
2. the method for claim 1, wherein described the step of forming preformed member with increasing material manufacturing method includes: In
On the basis of predicting the deformation direction in deformation process, moved towards by controlling the increasing material manufacturing process to control the column crystal
And distribution, so that the preformed member having with the deformation direction into the length of the deformation angle including at least 50% volume
The column crystal of axis.
3. method according to claim 2, wherein the step of controlling the increasing material manufacturing process includes controlling the increasing material system
Make at least one of stack layers direction, stack layers sequence and the deposition parameter of method.
4. the method for claim 1, wherein the preformed member includes at least having and the deformation for 60% volume
Column crystal of the direction at the long axis of the deformation angle, range of the deformation angle at 75 degree to 105 degree.
5. the step of being deformed preformed member described in the method for claim 1, wherein includes will be described preforming
Part is between the deformation direction in the long axis and the deformation process for being positioned so that the column crystal in forging die at the deformation
Angle.
6. the method for claim 1, wherein described the step of forming preformed member includes the wall along a cyclic structure
Thick direction stack layers form the cyclic structure, and described the step of being deformed preformed member includes making the preformed member along one
A circumferential direction for being approximately perpendicular to the cyclic structure, and extend to from the axial first end of the cyclic structure side of axial second end
To being deformed.
7. the method for claim 1, wherein described the step of forming preformed member includes the axis along a disk-like structure
The disk-like structure is formed to short transverse stack layers, described the step of being deformed preformed member includes making the preformed member edge
The radial direction of the disk-like structure is deformed.
8. the method for claim 1, wherein described the step of being deformed preformed member includes to described preforming
Part is forged.
9. method according to claim 8, wherein the forging includes closed die forging.
10. method according to claim 8, wherein the forging includes isothermal forging.
11. method according to claim 2, wherein the preformed member includes at least having and the change for 60% volume
Shape direction at the long axis of the deformation angle column crystal.
12. method according to claim 2, wherein range of the deformation angle at 75 degree to 105 degree.
13. method according to claim 2, wherein described the step of being deformed preformed member include by it is described it is pre- at
Type part is between the deformation direction in the long axis and the deformation process for being positioned so that the column crystal in forging die at the change
Shape angle.
14. method according to claim 2, wherein described the step of forming preformed member with increasing material manufacturing method includes edge
The wall thickness direction stack layers of a cyclic structure form the cyclic structure, described the step of being deformed preformed member includes making institute
The circumferential direction that preformed member is approximately perpendicular to the cyclic structure along one is stated, and is extended from the axial first end of the cyclic structure
It is deformed to the direction of axial second end.
15. method according to claim 2, wherein described the step of forming preformed member with increasing material manufacturing method includes edge
The axial height direction stack layers of a disk-like structure form the disk-like structure, described the step of being deformed preformed member includes
It is deformed the preformed member along the radial direction of the disk-like structure.
16. method according to claim 2, wherein described the step of being deformed preformed member include to it is described it is pre- at
Type part is forged.
17. the method described in claim 16, wherein the forging includes closed die forging.
18. the method described in claim 16, wherein the forging includes isothermal forging.
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| CN105108142A (en) * | 2015-06-18 | 2015-12-02 | 航星利华(北京)科技有限公司 | Method for manufacturing monocrystalline and directional solidified part through laser 3D printer |
| CN105121712A (en) * | 2013-04-19 | 2015-12-02 | 联合工艺公司 | Regenerating an additively manufactured component to cure defects and alter microstructure |
| CN105358270A (en) * | 2013-07-10 | 2016-02-24 | 美铝公司 | Methods for producing forged products and other worked products |
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| US9498919B2 (en) * | 2014-01-14 | 2016-11-22 | Adobe Systems Incorporated | 3D printing with small geometric offsets to affect surface characteristics |
| US9435211B2 (en) * | 2014-05-09 | 2016-09-06 | United Technologies Corporation | Method for forming components using additive manufacturing and re-melt |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105121712A (en) * | 2013-04-19 | 2015-12-02 | 联合工艺公司 | Regenerating an additively manufactured component to cure defects and alter microstructure |
| CN105358270A (en) * | 2013-07-10 | 2016-02-24 | 美铝公司 | Methods for producing forged products and other worked products |
| CN105108142A (en) * | 2015-06-18 | 2015-12-02 | 航星利华(北京)科技有限公司 | Method for manufacturing monocrystalline and directional solidified part through laser 3D printer |
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