CN108723162A - A kind of method that Fluid pressure induction shapes tangential non-close variable cross-section tubular member - Google Patents
A kind of method that Fluid pressure induction shapes tangential non-close variable cross-section tubular member Download PDFInfo
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- CN108723162A CN108723162A CN201710569573.XA CN201710569573A CN108723162A CN 108723162 A CN108723162 A CN 108723162A CN 201710569573 A CN201710569573 A CN 201710569573A CN 108723162 A CN108723162 A CN 108723162A
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- hair
- pipe
- cut somebody
- fluid pressure
- tubular member
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
- B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
- B21D26/033—Deforming tubular bodies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
- B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
- B21D26/033—Deforming tubular bodies
- B21D26/041—Means for controlling fluid parameters, e.g. pressure or temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
- B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
- B21D26/033—Deforming tubular bodies
- B21D26/045—Closing or sealing means
Abstract
The present invention relates to the methods that a kind of induction of Fluid pressure shapes tangential non-close variable cross-section tubular member, for the tangential non-close tubular member of variable cross-section labyrinth in aerospace field, it is proposed that new forming process and original blank state.First against tangential non-close tubular member, plank is selected then roll up curved, tubular blank of the formation with scrap (bridge) surplus, there are rubber seal casing, realization sealing in inside.It cuts somebody's hair and is moved at a certain distance from outer surface of tube blank at difficult formed features, apply Fluid pressure, realize the reversed poly- material in part；Then proceed to charging fluid pressure, left and right sides continuation of cutting somebody's hair feeds feed supplement toward middle part in an axial direction, and side is cut somebody's hair retrogressings at difficult formed features, is kept in contact always with blank, is realized the final forming of the shaping and hardly possible deformation behaviour of small feature.The manufacturing process has the characteristics that material compatibility range is wide, part forming precision is high, design of part complexity is high, equipment tonnage is small, mold tooling is few, saves production cost.
Description
Technical field
The invention belongs to hydroforming technology field, especially a kind of Fluid pressure induction shapes tangential non-close change and cuts
The method of face tubular member.
Background technology
Structure lightened is one of the main means that the means of transports such as automobile, aircraft save fuel, reduce exhaust gas discharge.Tool
There is the hollow non-uniform member of structure function part generally use of specific use, you can mitigating quality can make full use of material strong again
Degree.Internal high pressure forming is using tubing as blank, by forming tubular product is required shape under the internal pressure and axial supplement synergy
Advanced manufacturing technology.The realization of internal high pressure forming part is solid with hollow replacement, replaces with variable cross-section substitution cross-section, with closed cross-section
Welded section, the Mass lost 15%~30% of specific impulse weldment, and the rigidity and fatigue strength of part can be increased substantially.These
All so that hydroforming technology has a wide range of applications on the tubular member for being formed with complicated variable cross-section.
The essence of internal high pressure forming is that closing shell changes and is plastically deformed by various intermediate shapes under internal pressure effect
It is thickened shape shell by cylindrical shell, since intermediate shape variation and mold engagement sequence are by load path and the factors such as rub
It influences, so, the plastic deformation of Internal High Pressure Forming is sufficiently complex.Compared with traditional punch welding technique, interior high pressure at
Shape major advantage has：(1) mitigate quality and save material.40%-50% can be mitigated for hollow shaft type parts, some parts are reachable
75%；(2) part and number of molds are reduced, die cost is reduced.Internal high pressure forming part is usually only necessary to one set of die, and punching press
Part needs multiple sets of molds mostly；(3) subsequent mechanical processing and assembly welding amount can be reduced, productivity is improved；(4) improve intensity and
Rigidity；(5) production cost is reduced.
Internal high pressure forming pipe fitting under normal conditions is all the welding homogeneous tube tangentially sealed, however on aerospace field because
Contour structures for the demand of particular job environment, some structure function parts are more complicated, for example tangential non-close, there are certain
The labyrinth tubular member of scrap (bridge) surplus, variable cross-section.Because the tangential misclosure of part, causes the selection of blank to be limited
System, selection welding homogeneous tube carry out internal high pressure forming, and the later stage also needs to the aided processes such as cutting, to influence formed genius loci
Form accuracy and dimensional accuracy；Select plank, using it is traditional rush Welding it is difficult to ensure that each local feature positional precision
And the form accuracy of final products, and Sheet Metal Forming Technology shapes each small feature in position and needs multiple working procedure, tedious process, equipment
Tonnage is big, and production cost is high.The limitation of traditional forming technology also limits the more complicated aerospace structure part of structure
Design and research and development.Since the radial dimension of local feature on different cross section is larger, deflection is big, and forming difficulty is big, and material is radial
Flowing requires uniformly, to cause to utilize traditional internal high pressure forming, even if axial supplement is abundant, it is also difficult to which forming is in place.
Invention content
The purpose of the present invention is to solve the above problems, it is proposed that a kind of tangential non-close of Fluid pressure induction forming becomes
The method of cross section tubular part.
In order to achieve the above object, a kind of Fluid pressure induction provided by the invention shapes tangential non-close variable cross-section tubulose
The method of part includes the following steps carried out in order：
1) cavity for clearing up upper die and lower die, ensures the cleaning of mold cavity, prevents in Bulging Process, makees in Fluid pressure
Under, the impurity such as fine particle in cavity are embedded in the outer surface of blank, the serious surface quality for reducing part.Simultaneously by plate
Be rolled into tubular, control certain scrap (bridge) surplus, prevent in Bulging Process, because of the circumferential flow of material, cannot timely feed supplement, make
It can not be shaped at part or forming dimension is unable to reach necessary requirement.
2) caulking gum casing is put into pipe, the outer diameter of caulking gum casing and the internal diameter of pipe are consistent, shape
It at assembling structure, prevents in forming process, the two is detached from, the sealing function of loss of seal gum sleeve.Then pipe is put
Enter drag intracavitary, upper mold moves downward, and is closed with lower die.A left side, which cuts somebody's hair to cut somebody's hair with the right side, is separately connected two side push oil cylinder, and side pushes away
Oil cylinder feed motion drives left and right two to cut somebody's hair and is moved to middle part respectively along pipe axis.It cuts somebody's hair and pipe and rubber seal
The assembly of casing is realized the connection and sealing cut somebody's hair between pipe, is prevented from cutting somebody's hair in Bulging Process using interference fit
With the disengaging of pipe, the failure of an experiment.
3) cut somebody's hair on and under cut somebody's hair and be separately connected two side push oil cylinder, side push oil cylinder by feed motion, while drive it is upper,
It cuts somebody's hair for lower two and moves along a straight line to apart from the position of pipe surface certain distance, the position is according to the office of part difficulty deformation behaviour
Reversely poly- doses determines in portion.
4) the oil pipe road during fluid media (medium) is cut somebody's hair by the right side flows into pipe, with the load path of optimization to internal surface of bloom
Apply uniformly distributed interior pressure.In Bulging Process, left and right continuation of cutting somebody's hair is moved along pipe axis to middle part, increases axial material
The amount of feeding supplements circumferential material deformation.In order to fully realize the reversed poly- material in part at difficult deformation behaviour, ensure subsequent zero
The requirement of part form accuracy, Fluid pressure cannot be too small；Prevent pressure excessive simultaneously, extra blank flows into mold and pushes away above and below
The gap of head, causes the accumulation and corrugation of material, therefore, the final fluid medium pressure in this stage is determined as P1。
5) in Fluid pressure P1Under effect, the small feature distortion on pipe fitting is insufficient, without complete pad pasting, needs to increase and flow
Body pressure realizes high pressure shaping.It cuts somebody's hair above and below simultaneously and realizes setback respectively, it is fully formed to ensure that difficult formed features carry out.
Left and right continuation of cutting somebody's hair is moved toward middle part, converts the axial feed of pipe to circumferential feed supplement, realizes turning for the different parts of material
It moves.In this stage, the load path of fluid media (medium) needs Proper Match with the setback track cut somebody's hair above and below, ensures difficult become
Material forming speed at shape feature is moderate.It cuts somebody's hair above and below simultaneously and needs to remain in fallback procedures and contacted with pipe
State ensures the form accuracy requirement of difficult deformation behaviour.Finally, the final Fluid pressure in this stage reaches P2(P2> P1), it realizes
The function and effect of the fully deformed of the difficult deformation behaviour of the small feature of high pressure shaping and part.
6) finally, system release, left and right retrogressing of cutting somebody's hair, retrogressing of cutting somebody's hair above and below, upper and lower mould separation take out part, by rubber
Glue sealing sleeve pipe is taken out, and clears up part, carries out subsequent machining.
The method that a kind of Fluid pressure induction provided by the invention shapes tangential non-close variable cross-section tubular member, with plate
For raw material, fluid hydraulic expanding-forming process is carried out after pipe crimping, is substantially the combination of sheet metal hydroforming and forming high pressure in pipe.
This is for shaping tangential closed tubular member or the non-enclosed tubular member with scrap (bridge) surplus, the range of choice of material
More extensively, can be that plate blank directly rolls to tubular blank with scrap (bridge) surplus or flat blank material volume is curved, then
Tangentially sealed tube base is welded, or is tube-blank finished-product part.This method breaches tradition using the manufacturing process of high pressure in pipe fitting
It is stamping with rolling up in the curved technique being combined, the shortcomings of equipment tonnage is big, manufacturing procedure is more, mold tooling is complicated, a set of
The forming that complex parts can be realized in mold by different stations, saves production cost, improves work efficiency.It is based on
The final size of tube blank size and deformation, according to theory analysis it is found that part hardly possible formed features, deflection is considerably beyond material
Maximum elongation percentage, the reversed poly- material in part increases the material stock at difficult deformation behaviour, along with left and right in Bulging Process
The movement that side is cut somebody's hair realizes that the axial feed of material is converted to circumferential filling mold cavity, sequentially fills up the material of different parts
Transfer, possibility is provided for the production and trial-production of the more complicated variable cross-section tubular member of structure.
The method that a kind of Fluid pressure induction provided by the invention shapes tangential non-close variable cross-section tubular member, utilizes one
Final forming can be completed in mold tooling, reduces conventional ones forming and combines and rolls to shape such tangential non-enclosed pipe fitting
Multi-step positioning problem in technique, reduces the accumulation for the form error that part feature comes because of positioning belt, and one-time positioning ensures
The form accuracy of product requires and dimension precision requirement.Pipe fitting is isolated with high-pressure fluid using rubber seal casing, rubber
The assembling form of sealing sleeve pipe and pipe fitting is simple, and easily operated and replacement reduces production cost.Side is cut somebody's hair at the difficult deformation of control
Cross sectional shape and movement locus, you can the difficult formed features in part for obtaining different shape and deflection increase complex section
The diversity of characteristic product.The manufacture of complex component in the fields such as aerospace, automobile and national defense industry especially has small
Forming and shaping of the complex component of feature and difficult deformation behaviour etc. have broad application prospects.
Description of the drawings
Fig. 1 is the method original that tangential non-close variable cross-section tubular member is shaped using Fluid pressure provided by the invention induction
Manage schematic diagram.
Fig. 2 is the method pair that tangential non-close variable cross-section tubular member is shaped using Fluid pressure provided by the invention induction
The schematic diagram in reversed poly- material stage is carried out at the hardly possible formed features of part.
Fig. 3 is the method height that tangential non-close variable cross-section tubular member is shaped using Fluid pressure provided by the invention induction
The schematic diagram of the small feature of repoussage shape and abundant bulging difficulty formed features process.
Fig. 4 is plate blank and the pipe crimping direction of tangential non-close variable cross-section tubular member.
Fig. 5 is the pipe shape being put into mold cavity.
Fig. 6 is the axial view of tangential non-close variable cross-section tubular member.
In figure：1- rubber seal casings, 2- cut somebody's hair on a left side, 3- lower dies, cut somebody's hair under 4-, 5- non-tight pipes, 6- fluid media (medium)s,
7- oil-through-holes road, 8- cut somebody's hair on the right side, 9- upper molds, cut somebody's hair on 10-.
Specific implementation mode
In the following with reference to the drawings and specific embodiments to a kind of tangential non-close of Fluid pressure induction forming provided by the invention
The method of variable cross-section tubular member is described in detail.
As shown in Fig. 1-Fig. 6, a kind of Fluid pressure induction provided by the invention shapes tangential non-close variable cross-section tubulose zero
The method of part includes the following steps carried out in sequence：
1) cavity for clearing up upper mold 9 and lower die 3, ensures the cleaning of mold cavity, prevents in Bulging Process, in Fluid pressure
Under effect, the impurity such as fine particle in cavity are embedded in the outer surface of blank, the serious surface quality for reducing part.Simultaneously by plate
Material 5 is rolled into tubular, controls certain scrap (bridge) surplus, prevents in Bulging Process, because of the circumferential flow of material, cannot mend in time
Material, causes that part can not shape or forming dimension is unable to reach necessary requirement.
2) caulking gum casing 1 is put into pipe 5, the outer diameter of caulking gum casing 1 keeps one with the internal diameter of pipe 5
It causes, 5 outside auxiliary winding plastic film of pipe forms assembling structure, prevents in forming process, the two is detached from, loss of seal rubber
The sealing function of gum cover pipe 1.Then pipe 5 is put into the cavity of lower die 3, upper mold 9 moves downward, and is closed with lower die 3, makes pipe
Base 5 is in closed mold cavity.A left side cut somebody's hair 2 and the right side cut somebody's hair and 8 be separately connected two side push oil cylinder, side push oil cylinder feeding fortune
It is dynamic, it drives left and right two to cut somebody's hair and is moved to middle part respectively along 5 axis of pipe.A left side cut somebody's hair 2 and right 8 head of cutting somebody's hair be machined with spiral shell
Line structure, a left side cut somebody's hair 2 and and it is right cut somebody's hair 8 with the assembly of pipe 5 and rubber seal casing 1 using interference fit, realize and push away
Connection and sealing between head and pipe, prevent the disengaging cut somebody's hair in Bulging Process with pipe, the failure of an experiment.
3) cut somebody's hair on 10 and under cut somebody's hair and 4 be separately connected two side push oil cylinder, side push oil cylinder is pushed away in drive by feed motion
First 10 and under cut somebody's hair and 4 move along a straight line to apart from the position of 5 surface certain distance of pipe, the position is according to part difficulty deformation behaviour
The reversed poly- doses in part determine.
4) fluid media (medium) 6 flows into pipe 5 by the right side oil pipe road 7 in 8 of cutting somebody's hair, with the load path of optimization to pipe 5
Inner surface applies uniformly distributed interior pressure P.Pipe 5 is moved in the circumferential direction at Fluid pressure P, fills cavity, realizes variable section structure
Forming.In Bulging Process, a left side cut somebody's hair 2 and the right side 8 continuation of cutting somebody's hair moved to middle part along 5 axis of pipe, increase axial material feeding
Amount supplements circumferential material deformation.In order to fully realize the reversed poly- material in part at difficult deformation behaviour, ensure outside subsequent part
Shape required precision, Fluid pressure cannot be too small；Prevent pressure excessive simultaneously, the seam that extra blank flows into mold and cuts somebody's hair up and down
Gap causes the accumulation and corrugation of material, therefore the final Fluid pressure in the stage is determined as P1。
5) in Fluid pressure P1Under effect, the small feature distortion on pipe fitting is insufficient, without complete pad pasting, needs to increase and flow
Body pressure realizes high pressure shaping.Cut somebody's hair on simultaneously 10 and under cut somebody's hair and 4 realize setback respectively, ensure that difficult formed features carry out
It is fully formed.Continuation is cut somebody's hair toward middle part movement in left and right, converts the axial feed of pipe 5 to circumferential feed supplement, realizes material not
With the transfer at position.In this stage, the load path of fluid media (medium) and above cut somebody's hair 10 and under cut somebody's hair 4 setback track needs
Proper Match ensures that the material deformation velocity at difficult deformation behaviour is moderate, and it is excessive to prevent bulging amount, and rupture or swollen occurs
Shape amount is inadequate, deforms the defects of uneven.Cut somebody's hair on simultaneously 10 and under cut somebody's hair and 4 need to remain in fallback procedures and pipe
The state of 5 contacts ensures that the form accuracy requirement of difficult deformation behaviour, final Fluid pressure reach P2(P2> P1), realize high repoussage
The function and effect of the fully deformed of the difficult deformation behaviour of the small feature of shape and part.
6) finally, system release, a left side cut somebody's hair 2 and the right side cut somebody's hair 8 retrogressings, above cut somebody's hair 10 and under cut somebody's hair 4 retrogressings, upper and lower mould point
From rubber seal casing 1 is taken out, clears up part, carry out subsequent machining by taking-up part.
Claims (7)
1. a kind of method that Fluid pressure induction shapes tangential non-close variable cross-section tubular member, it is characterised in that：The stream
The method that body pressure inducement shapes tangential non-close variable cross-section tubular member includes the following steps carried out in order：
1) cavity for clearing up upper mold 9 and lower die 3, ensures the cleaning of mold cavity, prevents in Bulging Process, is acted in Fluid pressure
Under, the impurity such as fine particle in cavity are embedded in the outer surface of blank, the serious surface quality for reducing part.Simultaneously by plate 5
Be rolled into tubular, control certain scrap (bridge) surplus, prevent in Bulging Process, because of the circumferential flow of material, cannot timely feed supplement, make
It can not be shaped at part or forming dimension is unable to reach necessary requirement.
2) caulking gum casing 1 is put into pipe 5, the internal diameter of the outer diameter and pipe 5 of caulking gum casing 1 is consistent, pipe
5 outside auxiliary winding plastic film of base forms assembling structure, prevents in forming process, the two is detached from, loss of seal rubber sleeve
The sealing function of pipe 1.Then pipe 5 is put into the cavity of lower die 3, upper mold 9 moves downward, and is closed with lower die 3, makes pipe 5
In closed mold cavity.A left side cut somebody's hair 2 and the right side cut somebody's hair and 8 be separately connected two side push oil cylinder, side push oil cylinder feed motion, band
Dynamic left and right two, which is cut somebody's hair, to be moved respectively along 5 axis of pipe to middle part.A left side cut somebody's hair 2 and right 8 head of cutting somebody's hair be threaded knot
Structure, a left side cut somebody's hair 2 and and it is right cut somebody's hair 8 with the assembly of pipe 5 and rubber seal casing 1 using being interference fitted, realize cut somebody's hair and
Connection between pipe and sealing prevent the disengaging cut somebody's hair in Bulging Process with pipe, the failure of an experiment.
3) cut somebody's hair on 10 and under cut somebody's hair and 4 be separately connected two side push oil cylinder, side push oil cylinder cuts somebody's hair 10 by feed motion in drive
It cuts somebody's hair and 4 moves along a straight line to apart from the position of 5 surface certain distance of pipe under, the position is according to the office of part difficulty deformation behaviour
Reversely poly- doses determines in portion.
4) fluid media (medium) 6 flows into pipe 5 by the right side oil pipe road 7 in 8 of cutting somebody's hair, with the load path of optimization into pipe 5 table
Face applies uniformly distributed interior pressure P.Pipe 5 is moved in the circumferential direction at Fluid pressure P, fills cavity, realizes variable section structure forming.
In Bulging Process, a left side cut somebody's hair 2 and the right side 8 continuation of cutting somebody's hair moved to middle part along 5 axis of pipe, increase the axial material amount of feeding, mend
Fill circumferential material deformation.In order to fully realize the reversed poly- material in part at difficult deformation behaviour, ensure subsequent External Shape essence
Degree requires, and Fluid pressure cannot be too small；Prevent pressure excessive simultaneously, the gap that extra blank flows into mold and cuts somebody's hair up and down,
The accumulation and corrugation of material are caused, therefore the final Fluid pressure in the stage is determined as P1。
5) in Fluid pressure P1Under effect, the small feature distortion on pipe fitting is insufficient, without complete pad pasting, needs larger fluid pressure
Power realizes high pressure shaping.Cut somebody's hair on simultaneously 10 and under cut somebody's hair and 4 realize setback respectively, it is abundant to ensure that difficult formed features carry out
Forming.Continuation is cut somebody's hair toward middle part movement in left and right, converts the axial feed of pipe 5 to circumferential feed supplement, realizes the different portions of material
The transfer of position.In this stage, the load path of fluid media (medium) and above cut somebody's hair 10 and under cut somebody's hair 4 setback track need rationally
Matching ensures that the material deformation velocity at difficult deformation behaviour is moderate, and it is excessive to prevent bulging amount, and rupture or bulging amount occurs
Not enough, the defects of uneven is deformed.Cut somebody's hair on simultaneously 10 and under cut somebody's hair and 4 need to remain in fallback procedures and connect with pipe 5
Tactile state ensures that the form accuracy requirement of difficult deformation behaviour, final Fluid pressure reach P2(P2> P1), realize high pressure shaping
The function and effect of the fully deformed of the difficult deformation behaviour of small feature and part.
6) finally, system release, a left side cut somebody's hair 2 and the right side cut somebody's hair 8 retrogressings, above cut somebody's hair 10 and under cut somebody's hair 4 retrogressings, upper and lower mould separation takes
Go out part, rubber seal casing 1 is taken out, part is cleared up, subsequent machining is carried out.
2. the method that Fluid pressure induction according to claim 1 shapes tangential non-close variable cross-section tubular member, special
Sign is：For shaping circumferentially closed formula tubular member or the non-enclosed tubular member with scrap (bridge) surplus, the choosing of material
It selects that range is more extensive, can be that plate blank directly rolls to tubular blank or flat blank material volume with scrap (bridge) surplus
It is curved, tangentially seal pipe base is then welded, or be tube-blank finished-product part.
3. the method that Fluid pressure induction according to claim 1 shapes tangential non-close variable cross-section tubular member, special
Sign is：This method using high-pressure fluid medium shape variable cross-section labyrinth tubular member, breach tradition forming such zero
Part it is stamping with roll up in the curved technique being combined, equipment tonnage is big, manufacturing procedure is more, mold tooling is complicated the shortcomings of,
The forming that complex parts can be realized in one set of die by different stations, saves production cost, improves work efficiency.
4. the method that Fluid pressure induction according to claim 1 shapes tangential non-close variable cross-section tubular member, special
Sign is：Based on initial pipe tangential dimension and final each deformed sections size, according to theory analysis it is found that the difficult forming in part
Feature, for deflection considerably beyond the maximum elongation percentage of material, part is reversed to gather the material storage expected to increase at difficult deformation behaviour
Movement that is standby, cutting somebody's hair along with left and right in Bulging Process, the axial feed for realizing material radially fill mold cavity
Process sequentially fills up different structure cavities, is provided for the production and trial-production of the more complicated variable cross-section tubular member of structure
It may.
5. the method that Fluid pressure induction according to claim 1 shapes tangential non-close variable cross-section tubular member, special
Sign is：The method that a kind of Fluid pressure induction provided by the invention shapes tangential non-close variable cross-section tubular member, utilizes one
The forming of final part can be completed in mold tooling, reduces the combination process that conventional ones forming combines volume curved and shapes such
Multiple bearing problem in tangential non-enclosed pipe fitting technique reduces part function feature and structure feature because positioning belt comes
Form error accumulation.One-time positioning ensure that form accuracy requirement and the dimension precision requirement of product.
6. the method that Fluid pressure induction according to claim 1 shapes tangential non-close variable cross-section tubular member, special
Sign is：Pipe is isolated with high-pressure fluid medium using rubber seal casing, rubber seal casing be put into roll up it is curved after pipe
In, using plastic film package pipe outside to which the two be assembled together, realize the fixation of the two.Rubber seal casing with
Pipe assembling form is simple, easily operated, and rubber seal casing is cheap, is easily changed, and reduces production cost.
7. the method that Fluid pressure induction according to claim 1 shapes tangential non-close variable cross-section tubular member, special
Sign is：The cross sectional shape and movement locus that side is cut somebody's hair at the difficult deformation of control, you can obtain the part of different shape and deflection
Difficult formed features increase the diversity of complex section characteristic product.
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| CN201710569573.XA CN108723162B (en) | 2017-07-13 | 2017-07-13 | Method for forming tangential non-closed variable cross-section tubular part by fluid pressure induction |
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| CN109894508A (en) * | 2019-03-08 | 2019-06-18 | 苏州事达同泰汽车零部件有限公司 | The interior high-pressure molding technique of thin-wall pipe |
| CN110976608A (en) * | 2019-12-02 | 2020-04-10 | 隆昌山川精密焊管有限责任公司 | Pipe beam internal high-pressure forming method |
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| CN113020391A (en) * | 2021-03-04 | 2021-06-25 | 北京航空航天大学 | Ultrahigh-pressure forming method and device for high-temperature alloy fluid medium |
| CN114309229A (en) * | 2021-12-27 | 2022-04-12 | 中国科学院金属研究所 | Forming-punching-flanging integrated impact hydraulic forming die and method |
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| CN109894508A (en) * | 2019-03-08 | 2019-06-18 | 苏州事达同泰汽车零部件有限公司 | The interior high-pressure molding technique of thin-wall pipe |
| CN110976608A (en) * | 2019-12-02 | 2020-04-10 | 隆昌山川精密焊管有限责任公司 | Pipe beam internal high-pressure forming method |
| CN111168407A (en) * | 2020-01-13 | 2020-05-19 | 大连理工大学 | Integrated manufacturing method of high-temperature-resistant thin-wall component by laying metal foil tape for blank making |
| CN111168407B (en) * | 2020-01-13 | 2021-06-22 | 大连理工大学 | Integrated manufacturing method of high-temperature-resistant thin-wall component by laying metal foil tape for blank making |
| CN112756473A (en) * | 2020-12-17 | 2021-05-07 | 重庆虎溪电机工业有限责任公司 | Method for making copper thin-wall skeleton |
| CN112756473B (en) * | 2020-12-17 | 2023-02-17 | 重庆虎溪电机工业有限责任公司 | Method for making copper thin-wall skeleton |
| CN113020391A (en) * | 2021-03-04 | 2021-06-25 | 北京航空航天大学 | Ultrahigh-pressure forming method and device for high-temperature alloy fluid medium |
| CN113020391B (en) * | 2021-03-04 | 2022-05-03 | 北京航空航天大学 | Ultrahigh-pressure forming method and device for high-temperature alloy fluid medium |
| CN114309229A (en) * | 2021-12-27 | 2022-04-12 | 中国科学院金属研究所 | Forming-punching-flanging integrated impact hydraulic forming die and method |
| CN114309229B (en) * | 2021-12-27 | 2022-12-02 | 中国科学院金属研究所 | Forming-punching-flanging integrated impact hydraulic forming die and method |
| CN114700388A (en) * | 2022-04-28 | 2022-07-05 | 太原理工大学 | Forming method for thin-wall multi-way composite pipe fitting |
| CN114700388B (en) * | 2022-04-28 | 2023-09-08 | 太原理工大学 | Forming method for thin-wall multi-way composite pipe fitting |
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