CN107876674A - Manufacturing process is constructed in metal classification - Google Patents
Manufacturing process is constructed in metal classification Download PDFInfo
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- CN107876674A CN107876674A CN201710981005.0A CN201710981005A CN107876674A CN 107876674 A CN107876674 A CN 107876674A CN 201710981005 A CN201710981005 A CN 201710981005A CN 107876674 A CN107876674 A CN 107876674A
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- 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
- B21J5/002—Hybrid process, e.g. forging following casting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J1/00—Preparing metal stock or similar ancillary operations prior, during or post forging, e.g. heating or cooling
- B21J1/04—Shaping in the rough solely by forging or pressing
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- 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
- B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
- B21J5/08—Upsetting
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Abstract
The present invention discloses metal classification and constructs manufacturing process：One-level is carried out first by conventional construction method to construct, and obtains the blank primitive that next stage is constructed.N levels are carried out afterwards to construct, and two blank primitives are stacked to predetermined shape；Two blank primitives for being stacked to predetermined shape are packaged into prefabricated blank；By the interfacial weld between two blank primitives of smithwelding so that prefabricated blank is made into blank；By blank forging to required shape, the blank primitive constructed as N+1 levels；Above step is repeated to realize that multistage is constructed, prepares larger blank.When the execution N levels construct step, if during by the interfacial weld between two blank primitives of smithwelding so that prefabricated blank is made into blank, interface between two blank primitives could not reach complete soldering, two blank primitive forgings can be returned to the size of blank primitive at the end of 1 grade of N is constructed, with progress constructing again again.An interface is only existed in prefabricated blank during each N levels are constructed.
Description
Technical field
The present invention relates to a kind of metal material manufacture method, specifically realizes metal or gold by being classified the mode of constructing
Belong to the processing method of sill shaping.This method is not only applicable to the manufacture that homogenizes of homogeneous material, but also suitable for heterogeneous
The composite manufacturing of material.
Background technology
Metal material is material most indispensable in development of human history, advantageous cheapness, tough based on its
The features such as property, durability, metal occupies leading position all the time in contemporary material industry.By thousands of years of accumulation, Ren Leiyi
A whole set of quite ripe metal material production technology, such as the production of traditional steel are grasped after smelting, casting, pressure processing
And heat treatment step, product quality is stable, cheap.The metal-base composites occurred in recent years combine metal material with
The advantages of nonmetallic materials, have the characteristics that proportion is small, specific strength is high, further widened the application of metal material.
Some key areas require higher to the bond strength of compound interface, and traditional Explosion composite mode is due in normal temperature
Lower pressure bonding, microscopic defect be present on interface, be difficult to meet to require, it is necessary to develop relatively reliable, safer new
Metal composite method.
Metal constructs manufacturing process, and being a kind of metal base smaller using polylith volume as constructing primitive is made Big Gold
Belong to the increasing material manufacturing method of base.This method by prepare multiple primitives, multiple primitives are stacked to predetermined shape, will be stacked to it is pre-
Multiple primitives of setting shape are packaged into prefabricated blank, by the interfacial weld between the multiple primitives of smithwelding so that prefabricated blank to be made
The steps such as blank realize the purpose using less strand, forging stock or strip plate manufacture large forgings.However, constructing blank manufacture
During, due to accidentalia such as interface pollution or welding seam failure cause the interface vacuum breaker between primitive and cause to scrap can
Energy property is very big.For more than 100t ultra-large type forging, the loss that the failure at single interface causes forging integrally to be scrapped is huge, urgently
It need to be avoided risk by effective method.
The content of the invention
It is an object of the invention to provide a kind of classification for preparing band large-scale metal material or composite material to construct shaping
Method, constructing for more ingot blanks, forging stock or strip plate is carried out using conventional construction method first, obtained after blank smithwelding will be constructed
Blank.Wherein smithwelding refers to during high temperature forging, makes the abundant soldering in interface by the atoms permeating between different primitives and reality
The process of existing metallurgical connection.After completing routine and constructing process, by blank forging into required shape, blank primitive is obtained.By its
After carrying out Surface Machining and cleaning, two blank primitives are packaged together, and interface internal is kept high vacuum state, then
Apply the forge welding process with the characteristics of jumping-up large deformation, two primitives is combined together into blank.Can be repeated several times by
Two pieces blank primitive smithwelding constructs referred to as one-level each time into the process of a bigger blank.Carry out after multistage constructs, can be with
Realize the manufacture of ultra-large type forging.
Manufacturing process is constructed in a kind of metal classification disclosed by the invention, it is characterised in that including：
One-level is constructed constructs with N levels,
The one-level, which is constructed, to be comprised the following steps：
Prepare multiple blank primitives；
Multiple blank primitives are stacked to predetermined shape；
The multiple blank primitives for being stacked to predetermined shape are packaged into prefabricated blank；
By the interfacial weld between the multiple blank primitives of smithwelding so that prefabricated blank is made into blank；
By blank forging to required shape, the blank primitive constructed as next stage；
The N levels are constructed (N >=2) and comprised the following steps：
The blank primitive to be formed is constructed by the N-1 levels by two and is stacked to predetermined shape；
By be stacked to predetermined shape it is described two by the N-1 levels construct the blank primitive to be formed be packaged into it is prefabricated
Base；
By the described two interfacial welds constructed by the N-1 levels between the blank primitive to be formed of smithwelding to incite somebody to action
Blank is made in prefabricated blank；
By blank forging to required shape, the blank primitive constructed as N+1 levels；
The step of N levels are constructed is repeated to prepare larger blank so that prefabricated during being constructed at follow-up every grade
An interface is only existed in base.The process of constructing is repeated after billet weight reaches target weight by blank forging to final forging
Size.
The technical scheme is that：
Manufacturing process is constructed in a kind of metal classification, is comprised the following steps：
One-level is carried out first by conventional construction method to construct, and prepares blank primitive：(can be by polylith small dimension metal base
Strand, forging stock or strip plate) Vacuum Package is carried out after stacking, apply the forge welding process with the characteristics of jumping-up large deformation to it afterwards,
Polylith small dimension metal base is set to be combined together into blank.By blank forging into cylinder or cuboid, blank base is obtained
Member；
Then blank primitive is constructed, soldering and sealing is into prefabricated blank：Two pieces of blank primitives are stacked to big specification cuboid or circle
Cylinder, the blank overall package after being constructed using cheap metal plate is into case, and to vacuumize process in case；Or using vacuum welding
Mode is connect respectively by the interface between each blank primitive；Blank after encapsulation is referred to as prefabricated blank；
Then by prefabricated blank smithwelding into blank：Prefabricated blank after encapsulation is heated into assigned temperature to come out of the stove, on a hydraulic press
Forged, implement the measure of jumping-up large deformation, make the abundant soldering in interface, realize metallurgical connection, the blank for being integrally formed；
Blank is made into blank primitive to repeat to construct process：Blank primitive is made in the blank being integrally formed after smithwelding, weight
Process is constructed by what blank primitive was manufactured into blank more than multiple, the process of constructing is repeated every time and is referred to as one-level, until blank weight reaches
To target weight.
Finally it is configured to device：Blank is further shaped using pressure processing modes such as forging, rollings, using machining
Mode Accurate Shaping is final specification size.
This method comprises the following steps that：
The first step, carry out one-level using conventional construction method and construct, manufacture blank primitive；
Second step, processing, cleaning blank primitive surface；
3rd step, by two pieces of blank primitive stackings；
4th step, the blank primitive after stacking is encapsulated, each contact interface is in vacuum state；
5th step, heated before implementing forging to the prefabricated blank after encapsulation；
6th step, Upsetting is implemented to prefabricated blank, obtains blank；
7th step, blank is made as blank primitive, second step is repeated to the process of the 6th step, until blank weight reaches
Target weight；
8th step, blank is shaped to final specification size.
Construct in the first step of manufacturing process in metal classification, using conventional construction technology, metal base is cut, surface adds
Blank is made after work cleaning, stacking, encapsulation, smithwelding, this process is referred to as the first order and constructed.By blank forging into cylinder or rectangular
The bodily form, obtain blank primitive.The ratio of height and the width/thickness/diameter of every piece of blank primitive is no more than 1.5: 1, is easy to reality
Apply Upsetting.
Constructed in metal classification in the second step of manufacturing process, ground using angle, steel brush polishing blank primitive surface, go deoxygenation
Change skin, if necessary using milling machine finished surface.Then using the organic solvents such as acetone, alcohol cleaning surface, apparent height is ensured
Cleaning, exposes fresh metal.
Constructed in metal classification in the 3rd step of manufacturing process, two pieces of blank primitives are stacked to big specification cuboid or circle
Cylinder, edge is set to align, total height and the ratio of width/thickness/diameter are no more than 3: 1 after stacking.
Constructed in metal classification in the 4th step of manufacturing process, it is using cheap metal plate that the blank primitive after stacking is overall
Case is packaged into, casing is reserved to vacuumize interface, to blocking interface again after vacuumize process in case；Or by the blank primitive after stacking
Entirety is put into vacuum chamber, then is by the interface between two primitives, the depth of weld of package interface using vacuum welding mode
10~50mm.Prefabricated blank is obtained after the completion of encapsulation.
Constructed in metal classification in the 5th step of manufacturing process, the prefabricated blank for welding completion is sent into heating stove heat, added
Hot temperature is 0.8 to 0.9Tm, and Tm is the fusing point of material, and unit is DEG C.Preferable temperature is 0.85Tm.
Constructed in metal classification in the 6th step of manufacturing process, it is flat that the blank after heating is placed horizontally at into forging press operation
On platform, jumping-up is carried out along short transverse (i.e. perpendicular to interface direction) to blank using upset plate；Depress the 10- of blank total height
50%, this process is referred to as smithwelding, and smithwelding obtains blank after terminating, and this process is referred to as the second level and constructed.In forging process, if
Interface between two blank primitives could not reach complete soldering, then two blank primitives are separated and forged and return to hair in the first step
The size of base primitive, constructed with re-starting the second level.
Constructed in metal classification in the 7th step of manufacturing process, blank be further forged into cylinder or cuboid,
Obtain blank primitive.The blank primitive of two pieces of identical sizes is subjected to Surface Machining, cleaning, stacking, encapsulation, smithwelding again, i.e.,
Second step is repeated to the process of the 6th step, this process is referred to as the third level and constructed.This process can be repeated several times, repeat structure every time
Build referred to as one-level.Construct blank primitive weight before rear blank weight is constructed for this time every time 2 times, carry out multistage and construct until hair
Untill base weight reaches target weight.
Constructed in metal classification in the 8th step of manufacturing process, the blank after multistage is constructed is by forging, rolling equipressure
Power processing mode further shapes, and uses machining mode Accurate Shaping as final specification size.
The present invention breaches the Traditional Thinking that the mother metal of metal device can only be larger than, using quality is more excellent, cost more
Low micro metal base constructs shaping, has the following advantages and advantages：
1st, the manufacture that homogenizes of large scale metal device is realized.It is used as using the smaller metal base of polylith volume and constructs base
Member, because setting rate is fast, therefore its homogeneity of ingredients is far better than the band large-scale metal base of traditional monoblock cast, on this basis
Significant gross segregation is not present in the large scale metal device constructed.
2nd, the densification manufacture of large scale metal device is realized.It is used as using the smaller metal base of polylith volume and constructs base
Member, because setting rate is fast, can almost realize while solidify, thus blank it is inner integrated shrinkage cavity it is loose few.Soldering interface
Through deform, be incubated and multiway forging after, compactness is higher than forging made of the overall strand of tradition.
3rd, the sublimate manufacture of large scale metal device is realized.It is used as using the smaller metal base of polylith volume and constructs base
Member, it is low due to preparing cost, difficulty, therefore the sublimate of primitive can be realized using various flexible method of refining, it is basic herein
On the large scale metal device high purity constructed in forging made of the overall strand of tradition.
4th, the low cost manufacture of large scale metal device is realized.Because the metal base for preparing small volume can use continuous casting etc.
The big means of production, the molding means that its manufacturing cost metal base larger far below preparation volume must use, therefore can be significantly
Reduce manufacturing cost.In addition, using continuous casting billet as primitive is constructed, rising head, mouth of a river loss without traditional steel ingot, material can be lifted
Expect utilization rate more than 15%.
5th, cleaning, stabilizing manufacture for large scale metal device is realized.Conventional die castings method prepares metal base and needed manually
Prepare mould, running channel, insulation material, while riser compound and coverture have larger environmental pollution after cast.Using gold
Category classification construct manufacturing process, process can realize full automation, can not only improve work situation, and reduce it is artificial because
Element influences, and product quality will more be stablized.
6th, the high reliability graded m anufacturing of super-large component is realized.Traditional construction method is directly to enter polylith metal base
Row is constructed, in blank manufacturing process is constructed, because accidentalia such as interface pollution or welding seam failure cause interface vacuum breaker
Cause the possibility scrapped very big.For example, for more than 100t ultra-large type forging, continuous casting billet is used using traditional construction method
Constructed, the number of plies of continuous casting billet stacking more than 10 layers, between any two layers the failure at single interface forging will be caused integrally to report
Useless, loss is huge.By classification construct manufacturing process can realize it is progressively big with small system, only the first order construct during blank
In multiple interfaces be present, follow-up multistage only exists an interface every time during constructing, can effectively reduce interface vacuum breaker
Cause the risk that forging is integrally scrapped.
Brief description of the drawings
Fig. 1 a to Fig. 1 h are present invention process flow chart, wherein, Fig. 1 a displays are obtained prefabricated using conventional construction technology
Base；Prefabricated blank smithwelding into blank, and is further manufactured into blank primitive by Fig. 1 b；Fig. 1 c, which are shown, equals blank primitive Surface Machining
It is whole, expose fresh metal, and cleaned；Fig. 1 d are shown under vacuum bad border and the interface surrounding between blank primitive are sealed
Weldering, to obtain prefabricated blank；Fig. 1 e show prefabricated blank being put into high temperature furnace and heated；Fig. 1 f, which are shown on forging press, uses upset plate
Along the short transverse jumping-up of prefabricated blank；Fig. 1 g show Upsetting in place, the abundant soldering of defect is obtained blank；Fig. 1 h are shown
Blank is further forged, is processed into final part shape and size.
Fig. 2 is the construction technology schematic diagram of the embodiment of the present invention 1, and the first order is constructed prepares second using conventional construction technology
Level constructs the cuboid blank primitive used；The two pieces length that the first order is constructed to acquisition using the method for the present invention is constructed in the second level
Cube blank primitive is made the third level and constructs the cuboid blank primitive used, and the third level constructs method using the present invention by the
The cuboid blank primitive that two level constructs acquisition is prepared into larger blank.
Fig. 3 is the construction technology schematic diagram of the embodiment of the present invention 2, and the first order is constructed prepares second using conventional construction technology
Level constructs the cylinder blank primitive used, and the two pieces circle that the first order is constructed to acquisition using the method for the present invention is constructed in the second level
Cylinder blank primitive is made the third level and constructs the cylinder blank primitive used, and the third level constructs method using the present invention by the
The cylinder blank primitive that two level constructs acquisition is prepared into larger blank.
Embodiment
Fig. 1 a to Fig. 1 h are present invention process flow chart, wherein, Fig. 1 a displays are obtained prefabricated using conventional construction technology
Base；Prefabricated blank smithwelding into blank, and is further manufactured into blank primitive by Fig. 1 b；Fig. 1 c, which are shown, equals blank primitive Surface Machining
It is whole, expose fresh metal, and cleaned；Fig. 1 d are shown under vacuum bad border and the interface surrounding between blank primitive are sealed
Weldering, to obtain prefabricated blank；Fig. 1 e show prefabricated blank being put into high temperature furnace and heated；Fig. 1 f, which are shown on forging press, uses upset plate
Along the short transverse jumping-up of prefabricated blank；Fig. 1 g show Upsetting in place, the abundant soldering of defect is obtained blank；Fig. 1 h are shown
Blank is further forged, is processed into final part shape and size.
Fig. 2 is the construction technology schematic diagram of the embodiment of the present invention 1, and the first order is constructed prepares second using conventional construction technology
Level constructs the cuboid blank primitive used；The two pieces length that the first order is constructed to acquisition using the method for the present invention is constructed in the second level
Cube blank primitive is made the third level and constructs the cuboid blank primitive used, and the third level constructs method using the present invention by the
The cuboid blank primitive that two level constructs acquisition is prepared into larger blank.
It is advantageous that this classification, which is constructed, if constructed without classification, it is contemplated that to obtain the final 40t in Fig. 2
Level blank, 9 pieces of the continuous casting billet that size is 1400 × 1400 × 300mm need to be adopted and once constructed, which includes 8 interfaces,
If one of interface vacuum breaker, will cause forging integrally to be scrapped.However, constructed by classification, in the first order is constructed
Interface has been reduced to 3, and it is only 1 that the interface in being constructed in the second level and the third level, which has been reduced to,.This is greatly reduced
The possibility that large-scale blank is scrapped during constructing, greatly improved qualification rate.
Embodiment 1
The target product of the present embodiment is 316 stainless steel annular elements.Use continuous casting mode first, cast width 1000mm,
Thickness 300mm continuous casting steel billet, its steel grade are 316H.Then the continuous casting billet primitive that length is 1000mm is cut, after processing, cleaning
Soldering and sealing is into prefabricated blank in vacuum chamber.10t level blank primitives are obtained after prefabricated blank is carried out into smithwelding.By 4 10t level blank primitives
2 20t level blanks are obtained after carrying out Surface Machining, cleaning, stacking, encapsulation, smithwelding.Using 2 20t levels blanks as blank primitive
1 40t level blank is obtained after carrying out Surface Machining, cleaning, stacking, encapsulation, smithwelding.Blank forging is finally circularized into part.Tool
Body step is as follows：
The first step, blank primitive is manufactured using conventional construction method.It is 1000 × 1000 × 300mm continuous casting billets to cut specification
16 pieces, continuous casting billet is processed, after cleaning in vacuum chamber prefabricated blank of every 4 pieces of stacking soldering and sealing into 1000 × 1000 × 1200mm.
10t level blanks are obtained after prefabricated blank is carried out into smithwelding, by blank forging to 1050 × 1050 × 1050mm of size, turn into 10t levels
Blank primitive.4 pieces of 10t level blank primitives are obtained altogether.
Second step, process, clean surface to be welded.Using planer-type milling machine processing 10t level blank primitives surface, then use
Acetone cleans, and ensures apparent height cleaning, exposes fresh metal.
3rd step, stacking is carried out to 10t level blanks primitive.Two pieces of 10t level blanks primitives are subjected to stackings, size after stacking
For 1050 × 1050 × 2100mm, weight is about 20t.
4th step, vacuum electron beam welding is carried out to 10t level blanks primitive.By the 10t level blank primitive surroundings after stacking
Vacuum electron beam welding is carried out, depth of weld 50mm, 20t level prefabricated blanks are obtained after the completion of welding.
5th step, heated before implementing forging to 20t levels prefabricated blank.The prefabricated blank feeding heating stove heat completed will be welded, added
Hot temperature is 1200 DEG C.
6th step, jumping-up large deformation is implemented to prefabricated blank.It is flat that 20t level prefabricated blanks after heating are positioned over forging press operation
On platform, make 20t level prefabricated blanks short transverse vertically.Jumping-up, pressure are carried out to prefabricated blank along short transverse using upset plate
The 50% of lower prefabricated blank total height.20t level blanks are obtained after the completion of deformation.By blank forging to size 1320 × 1320 ×
1320mm, turn into 20t level blank primitives.2 pieces of 20t level blank primitives are obtained altogether.
7th step, carry out the manufacture of 40t level blanks.By 2 pieces of 20t level blanks primitives carry out Surface Machinings, cleaning, stacking,
40t level prefabricated blanks are obtained after encapsulation.40t level blanks will be turned into after prefabricated blank smithwelding, that is, repeat second step to the process of the 6th step.
8th step, 40t level blank forgings are shaped to final forging's block dimension.Forging is annular, internal diameter 1030mm, external diameter
It is highly 1000mm for 2630mm.
Fig. 3 is the construction technology schematic diagram of the embodiment of the present invention 2, and the first order is constructed prepares second using conventional construction technology
Level constructs the cylinder blank primitive used, and the two pieces circle that the first order is constructed to acquisition using the method for the present invention is constructed in the second level
Cylinder blank primitive is made the third level and constructs the cylinder blank primitive used, and the third level constructs method using the present invention by the
The cylinder blank primitive that two level constructs acquisition is prepared into larger blank.
It is advantageous that this classification, which is constructed, if constructed without classification, it is contemplated that to obtain the final 160t in Fig. 3
Level blank, 14 pieces of the continuous casting billet that size is 2300 × 2300 × 300mm need to be adopted and once constructed, which includes 13 boundaries
Face, if one of interface vacuum breaker, will cause forging integrally to be scrapped.However, constructed by classification, in the first order is constructed
Interface be reduced to 6, and it is only 1 that the interface in being constructed in the second level and the third level, which has been reduced to,.This is substantially reduced
The possibility that large-scale blank is scrapped during constructing, greatly improved qualification rate.
Embodiment 2
The target product of the present embodiment is rotor forging.Continuous casting mode, cast width 1600mm, thickness are used first
300mm continuous casting steel billet, its steel grade are 16Mn.Then the continuous casting billet primitive that length is 1600mm is cut, true after processing, cleaning
Soldering and sealing is into prefabricated blank in empty room.40t level blank primitives are obtained after prefabricated blank is carried out into smithwelding.4 40t level blanks primitives are carried out
2 80t level blanks are obtained after Surface Machining, cleaning, stacking, encapsulation, smithwelding.Carried out 2 80t levels blanks as blank primitive
1 160t level blank is obtained after Surface Machining, cleaning, stacking, encapsulation, smithwelding.Finally by blank forging into rotor.Specific steps
It is as follows：
The first step, blank primitive is manufactured using conventional construction method.It is 1600 × 1600 × 300mm continuous casting billets to cut specification
28 pieces, continuous casting billet is processed, after cleaning in vacuum chamber prefabricated blank of every 7 pieces of stacking soldering and sealing into 1600 × 1600 × 2100mm.
40t level blanks are obtained after prefabricated blank is carried out into smithwelding, by blank forging to size 1930 × 1800mm of φ, turn into 40t level blanks
Primitive.4 pieces of 40t level blank primitives are obtained altogether.
Second step, process, clean surface to be welded.Using planer-type milling machine processing 40t level blank primitives surface, then use
Acetone cleans, and ensures apparent height cleaning, exposes fresh metal.
3rd step, stacking is carried out to 40t level blanks primitive.Two pieces of 40t level blanks primitives are subjected to stackings, size after stacking
For 1930 × 3600mm of φ, weight is about 80t.
4th step, vacuum electron beam welding is carried out to 40t level blanks primitive.By the 40t level blank primitive surroundings after stacking
Vacuum electron beam welding is carried out, depth of weld 50mm, 80t level prefabricated blanks are obtained after the completion of welding.
5th step, heated before implementing forging to 80t levels prefabricated blank.The prefabricated blank feeding heating stove heat completed will be welded, added
Hot temperature is 1200 DEG C.
6th step, jumping-up large deformation is implemented to prefabricated blank.It is flat that 80t level prefabricated blanks after heating are positioned over forging press operation
On platform, make 80t level prefabricated blanks short transverse vertically.Jumping-up, pressure are carried out to prefabricated blank along short transverse using upset plate
The 50% of lower prefabricated blank total height.80t level blanks are obtained after the completion of deformation.By blank forging to size 2400 × 2200mm of φ,
As 80t level blank primitives.2 pieces of 80t level blank primitives are obtained altogether.
7th step, carry out the manufacture of 160t level blanks.By 2 pieces of 80t level blanks primitives carry out Surface Machinings, cleaning, stacking,
80t level prefabricated blanks are obtained after encapsulation.160t level blanks will be turned into after prefabricated blank smithwelding, that is, repeat second step to the mistake of the 6th step
Journey.
8th step, 160t level blank forgings are shaped to final forging's block dimension, total length 9000mm, maximum gauge
3000mm, minimum diameter 700mm.
Claims (11)
1. manufacturing process is constructed in a kind of metal classification, it is characterised in that including：
One-level is constructed constructs with N levels, wherein N >=2,
The one-level, which is constructed, to be comprised the following steps：
Prepare multiple blank primitives；
Multiple blank primitives are stacked to predetermined shape；
The multiple blank primitives for being stacked to predetermined shape are packaged into prefabricated blank；
By the interfacial weld between the multiple blank primitives of smithwelding so that prefabricated blank is made into blank；
By blank forging to required shape, the blank primitive constructed as next stage；
The N levels, which are constructed, to be comprised the following steps：
The blank primitive to be formed is constructed by the N-1 levels by two and is stacked to predetermined shape；
Described two the blank primitive to be formed is constructed by the N-1 levels it are packaged into prefabricated blank by be stacked to predetermined shape；
By the described two interfacial welds constructed by the N-1 levels between the blank primitive to be formed of smithwelding with will be prefabricated
Blank is made in base；
By blank forging to required shape, the blank primitive constructed as N+1 levels；
The step of N levels are constructed is repeated to prepare larger blank so that during follow-up every grade is constructed, in prefabricated blank
Between only exist an interface, repeat the process of constructing until billet weight reaches blank forging to final forging after target weight
Size.
2. manufacturing process is constructed in metal classification according to claim 1, it is characterised in that the blank primitive can be casting
It is integrally formed and is forged to required shape after base, strip plate, forging stock or smithwelding and constructs base.
3. manufacturing process is constructed in metal classification according to claim 1, it is characterised in that two or more blank primitive heaps
Pile into predetermined shape total height and width/thickness/diameter ratio be no more than 3: 1.
4. manufacturing process is constructed in metal classification according to claim 1, it is characterised in that the predetermined shape is cylinder
Or rectangular shape.
5. manufacturing process is constructed in metal classification according to claim 1, it is characterised in that by two or more hairs of stacking
The step of base primitive is packaged into prefabricated blank is completed by vacuum electron beam welding.
6. manufacturing process is constructed in metal classification according to claim 1, it is characterised in that by two or more hairs of stacking
The step of base primitive is packaged into prefabricated blank is realized by overall package into casing.
7. manufacturing process is constructed in metal classification according to claim 1, it is characterised in that passes through smithwelding two or more
The step of the step of interfacial weld between individual blank primitive by prefabricated blank to be made blank includes heating preforms, heating-up temperature
For scope between 0.8-0.9Tm, Tm is the fusing point of material, and unit is DEG C, it is preferable that heating-up temperature 0.85Tm.
8. manufacturing process is constructed in metal classification according to claim 7, it is characterised in that also including will be prefabricated after heating
Base, which is positioned on forging press operating platform, forges and presses prefabricated blank so that prefabricated blank deforms.
9. manufacturing process is constructed in metal classification according to claim 8, it is characterised in that deflection is that prefabricated blank is deforming
The 20%-50% of total length on direction.
10. metal according to claim 8 constructs manufacturing process, it is characterised in that deformation direction is prefabricated blank height side
To the direction at interface that is, between two or more blank primitives.
11. manufacturing process is constructed in metal classification according to claim 1, it is characterised in that constructs step performing the N levels
When rapid, during by the interfacial weld between two blank primitives of smithwelding so that prefabricated blank is made into blank, if
Interface between two blank primitives could not reach complete soldering, can separate two blank primitives and forge and return to N-1 level structures
The size of blank primitive at the end of building, constructed with the N levels carried out again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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