CN1909991A - Hot flow forming and bending method, and device for carrying out said method - Google Patents
Hot flow forming and bending method, and device for carrying out said method Download PDFInfo
- Publication number
- CN1909991A CN1909991A CNA2005800030843A CN200580003084A CN1909991A CN 1909991 A CN1909991 A CN 1909991A CN A2005800030843 A CNA2005800030843 A CN A2005800030843A CN 200580003084 A CN200580003084 A CN 200580003084A CN 1909991 A CN1909991 A CN 1909991A
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- Prior art keywords
- roll
- bending
- section bar
- roller
- zone
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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
- B21D9/00—Bending tubes using mandrels or the like
- B21D9/10—Bending tubes using mandrels or the like by passing between rollers
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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
- B21D7/00—Bending rods, profiles, or tubes
- B21D7/16—Auxiliary equipment, e.g. for heating or cooling of bends
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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
- B21D9/00—Bending tubes using mandrels or the like
- B21D9/01—Bending tubes using mandrels or the like the mandrel being flexible and engaging the entire tube length
- B21D9/03—Bending tubes using mandrels or the like the mandrel being flexible and engaging the entire tube length and built-up from loose elements, e.g. series of balls
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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
- B21D9/00—Bending tubes using mandrels or the like
- B21D9/16—Auxiliary equipment, e.g. machines for filling tubes with sand
- B21D9/18—Auxiliary equipment, e.g. machines for filling tubes with sand for heating or cooling of bends
Abstract
Disclosed is a method for hot flow forming and bending closed, half-open, and open profiled members. Said method uses a bending machine comprising at least two rollers (17, 18) which are disposed across from each other in the feeding direction of the bending profiled member and behind which at least one milling roller (14) and an opposite central roller (11) are arranged at an axial distance in the feeding direction, said at least one milling roller (14) and central roller (11) jointly embodying a roll bending zone for the profiled member that is to be shaped. At least one bending roller (13) which can be moved against and away from the profiled member that is to be bent is arranged at the discharge end. In order to be able to shape thin-walled and sensitive open, half-open, and closed profiled members, at least the rollers (11, 14) located in the roll bending zone are heated.
Description
Technical field
Content of the present invention is the hot flow forming and bending method and the device that is used for implementing this method by claim 1 and 11 preambles.
Background technology
Known by same patent applicant patent application early, also can crooked sensitivity and the sealing of thin-walled, semi-open type and section bar open type with so-called four bending machines.
Bending is carried out in the mould of bidimensional or three-dimensional modeling.
Actual proof when the section bar of for example being made up of magnesium alloy or high strength steel is out of shape, pure cold bend(ing) distortion is not enough, because the high strength and the relevant therewith fragility that causes of material to be out of shape, its deformability deficiency so that section bar be out of shape satisfactorily.Section bar cracking or cause the damage of other modes when the certain deformation degree, therefore section bar that up to now can not this sensitivity of bending.
Actual proof when thin-wall section particularly, these section bars are tended to expand, and can not be out of shape up to now.
Summary of the invention
Therefore the objective of the invention is, recommends the novel method for bending deformation of a kind of open type that is used for the sensitivity of thin-walled, the half-open and section bar that seals, it works reliablely.
In order to realize described purpose, feature of the present invention is the method by the technology contents of claim 1.
Importantly, heating is arranged on the interior roller of roll bending zone at least.
In a kind of preferred construction of the present invention, imagine, correspondingly heating be arranged in the roll bending zone opposed mutually, abut against the roller on the mutual opposed wall of section bar.
In the following description for the notion of at least one employing " roll " in these two rollers.But this can not understand from literal, because these rollers no longer only have the function of rolling task, but additionally be used in the rolling district of bending, guiding section bar, the bending of section bar reality is being carried out in the distance between the backing roll that is arranged on the front spaced apart along input direction in the bending roll of back and at least one along input direction.
But the present invention is not limited to the setting that the roll in the rolling district of bending is heated.Can certainly heat other rollers, particularly be arranged on the backing roll of roll bending zone front and be positioned at the respective roller on its opposite along input direction, it can make the section bar of song to be curved be bearing in along input direction to be positioned on the bending roll of front.
Therefore replace described four bending machines, also other roller type bending machines can be made heatable.Therefore the present invention only is illustrated by means of four bending machines for example.But be applicable to the bending method that all are known by know-why of the present invention.
Structure about heater has different forms of implementation equally, and they should all be comprised by summary of the invention of the present invention.
Imagine in first kind of preferred structure of the present invention, oppositely disposed roll in roll bending zone (that is topping roll and the intermediate calender rolls that is positioned at the opposite) is made (the high conduction) that can conduct electricity.Each roll band one is positioned at outside external conductive casing for this reason, and radially inwardly by a dead ring and inner base electric insulation, wherein matrix non-rotatably is connected with axle in a known way for it.
Use the same method and design the roller on opposite.If now on a roller, apply for example 1000 to 2000 amperes big electric current, just produce the conductive path of a series of different distributions so, they to small part by treating crooked section bar.Because corresponding resistance heated, section bar only is heated in roll bending zone efficiently on request.As mentioned above, these conductive paths partly pass and treat crooked section bar.But conductive path also part inwardly stretches towards the mandrel direction that is fixed in the roll bending zone, and some electric current is outwards drawn by its mandrel rod.Therefore in the section bar inner chamber, also carry out resistance heated.
Connect in the centre under the situation of the section bar that can conduct electricity, other electric currents directly flow through mutual aspectant roller, therefore only concentrate in the roll bending zone and with high efficient and heat with very high temperature.
When thin-walled magnesium section bar or magnesium being closed star-like material be out of shape, at this moment in roll bending zone, produce about 150 ℃ to 200 ℃ temperature.
And when deformation processing high strength steel profile material, then temperature is preferably in the scope between 700 ℃ to 900 ℃.
Importantly, higher heating only concentrates in the roll bending zone when this form of implementation.This heating preferably produces by described resistor current heating.
But the present invention is not limited thereto.The present invention it is contemplated that also mutual opposed roll is equipped with known heating, their pre-hot rolls.
Also can in mutual aspectant roll, put into the heating helix tube, so that make their heating by corresponding electric current equally.
Except resistor current heating described here with the single heating element heater heating, in a kind of improvement structure of the present invention, imagine, by other heating element heater heated roll, for example by the fluid heating element heater, they are introduced into the roll inner chamber, by acting directly on the hot air element on the roller, by the induction heating of infrared ray or roll.
These rolls also can heat by means of laser energy.Described existing heating means also can make up mutually.
The present invention also is not limited to roll and is positioned at the heating of the intermediate calender rolls on its opposite with respect to roll bending zone.
In a kind of improvement structure of the present invention, imagine, additionally also heat the so-called vertical roller that is provided with perpendicular to described two rollers, here adopt above-mentioned whole heating means, described vertical roller abuts against on the sidewall for the treatment of crooked section bar, and there the input of heat concentrated area is treated in the sidewall of crooked section bar.
If particularly adopt above-mentioned current flow heats, also produce the conductive path that extends by vertical roller.
The present invention is not limited to heated roll in roll bending zone, but imagines in a kind of improvement structure, and heating is positioned at the roller of front along input direction.Here involve backing roll and the respective roller that is positioned at the backing roll opposite, they are close on the mutual opposed sidewall of section bar equally.
These two rollers also can be by all above-mentioned heating arrangements heating.Heating in this zone is equivalent to the preheating of section bar, and is final concentrated to its heating with heat in roll bending zone then.Thereby significantly improve even the deformation processing of responsive section bar.
By in roll bending zone, being close on the section bar conductively mutual opposed roll, thereby form the in check layout of conductive path, obtain exactly determined conductive path thus, thereby can in ± 1 ℃ accuracy rating, adjust temperature in the roll bending zone by applying electric current.
In order to regulate, on mutual opposed roll, corresponding temperature sensor is set, they regulate the electric current by this structure.
This external of the present invention one improves in structure and imagines, at the input of section bar that is carry out another time preheating in machine bridge shape frame zone.Described this preheating can comprise a heat tunnel, and the heating station that a large amount of orders mutually are provided with is set in the chamber within it.
The heating that these heating stations can be predesignated section bar in any way.
But preferentially each heating station is designed to pharoid (infrared ray heating) here.But except that radiation, also can adopt other heating arrangements, for example eddy-current heating and preferably other noncontact heating means.
Obtain such advantage with the know-why that provides,, and do not cause section bar cracking or bulging even the highstrung magnesium of thin-walled and magnesium alloy or almag also can carry out deformation processing first reliably.
For from inboard support sections, a mandrel that is fixed on the mandrel rod is followed mobile in the section bar inner chamber.
Here be preferably in front end one ring chain is set, it extends in the section bar inner chamber with playing supporting role, and is stretched in the bending roll zone from buckled zone, so that provide one accordingly reply to be held to bending roll.
Realize the supporting of section bar thus, make bending roll that section bar also is out of shape with respect to bending roll.
Here imagine in a kind of improvement structure of the present invention, mandrel is heated.As mentioned above, heating is preferably undertaken by described current flow heats device.
But also can be separately and/or use above-mentioned every other heating arrangements, particularly radiation heating, fluid heating, LASER HEATING or similar heating arrangements in combination with one another.
Summary of the invention of the present invention is not only by the content of each claim, but also obtained by the mutual combination of each claim.
All information and feature that all the elements comprise in the summary being announced, the particularly space structure shown in the accompanying drawings, if they individually or its combination be new with respect to prior art, all protect as the summary of the invention prescription.
Description of drawings
Describe the present invention in detail by means of the accompanying drawing of only representing a kind of embodiment below.Here can see other main feature and advantage of the present invention by accompanying drawing and explanation thereof.
Accompanying drawing is represented:
Fig. 1 a: perspective illustration by hot-fluid distortion bending machine of the present invention;
Fig. 2: the local amplification view of crooked head;
Fig. 3: press the view of the hot flow forming and bending machine of Fig. 1 together with other details;
Fig. 4: the cutaway view of pressing IV-IV line among Fig. 3;
Fig. 5: the cutaway view of pressing V-V line among Fig. 3.
The specific embodiment
Expression one machine bridge shape frame 1 is fixed the guiding station 3,4,5 that row are provided with in proper order on it in Fig. 1.Fixedly station 2 of one mandrel that is used for fixing two mandrel rod 6,7 is set on the rear side of machine bridge shape frame.
Guiding station 3,4,5 not only had been used for guiding core axostylus axostyle 6,7 but also be used for guiding the section bar to be out of shape 21 that does not draw in detail.
This section bar 21 is clamped in one and one with the method for not drawing in detail and sends in the clamping head 8 that slide plate 9 is connected.
Send slide plate 9 to and pass through drive unit 10, treat that deformation section 21 moves in crooked 70 so that make along machine crane span structure frame 1 longitudinal driving.
Can see other details by Fig. 2 and 3.
Fig. 3 represents, importantly, is treated that deformation section 21 sets a heat tunnel 30 in a kind of form of implementation.
This heat tunnel is made up of the heating station 31,32,33 that row are provided with in proper order, and wherein each heating station has a plurality of radiators 34,35.
Secondly in heat tunnel 30, also be provided with guide roller 37, their swinging mountings, and lean against by means of flexible member 38 and to treat on the deformation section 21.
The cutaway view of expression heat tunnel 30 among Fig. 4.Represent above-mentioned each part with cutaway view there.
Replace 2 mandrel rod 6,7-is as shown in fig. 1-here only with a unique mandrel rod 6.
Describe in detail by novel bending of the present invention 70 by means of Fig. 2 and 3 now.
It mainly is made up of an intermediate calender rolls 11, and it can be rotated to support on the rotating shaft 12 and for example can drive along the direction of arrow 29 rotations.
On intermediate calender rolls 11 opposites-with treat crooked section bar relative-roll 14 arranged, feasible by these two rolls determine one be used to treat deformation section 21,21 ' roll bending zone 40.
Here in hollow profile inside one mandrel 25 is set in roll bending zone 40, it preferably is made up of many elements.
The rear end of mandrel 25 is made of first supporting member 26, and it is arranged in backing roll 17 and the middle cavity between the respective roller 18 on opposite.
In the zone of roll bending zone 40, mandrel 25 forms one second supporting member 27, and it prevents that section bar from collapsing at roll bending zone 40 regional sunken insides or pressure.
Be connected with a ring chain 28 in forward regional inner spindle 25, it is made up of the chain link that each is hinged, and chain link is fitted on the hollow profile inwall, and wherein ring chain 28 1 is in bending roll 13 zones.
That is to say and treat that the crooked of deformation section preferentially carries out in the effect on the deformation section 21 for the treatment of by bending roll 13, reaches the corresponding counter-pressure of the backing roll 17 that is arranged on its a distance, back thus.
But distortion (hot flow forming and bending) is carried out in roll bending zone 40 zones.
Fig. 5 represents, in roll bending zone 40 zones other rolls can also be set, and they are fitted on the top and bottom sidewall of section bar.In Fig. 5, represented vertical roller 15,16.
The effect of these vertical rollers is additionally to guide section bar and prevent jackknifing in this zone in sidewall areas.
Expression in detail in addition also can be provided with other vertical roller 19,20, as shown in Figure 2 in the plane vertical with them in backing roll and respective roller 17,18 zones.
Whole in addition section bar 21 is placed on the supporting table 22, sinks to prevent section bar.
This outside sweep head has a bottom surface 23 and a top cover 24.
The present importantly current flow heats in roll bending zone 40 zones, it is represented in detail by means of Fig. 2.
Can see that at first topping roll 14 can be rotated to support on one and sends on the slide plate 65, it is De Kechao and treats that crooked section bar direction sends to and retreat.
A present utmost point with power supply abuts against this and sends on the slide plate 25, and another utmost point of power supply is connected with intermediate calender rolls 11 conductions on opposite.
Therefore form conductive path 55-64, they specifically mark with conductive path A1 to A10 in the accompanying drawings.
For example conductive path A1 extends on section bar 21 surfaces through external conductive casings 41 from intermediate calender rolls 11, and quotes with the form of conductive path 62 (A8) there and flow out by section bar.
Conductive path A3 carries out the transition to conductive path A4.Conductive path A5 carries out the transition to conductive path A6.Conductive path A7 carries out the transition to conductive path A8.Conductive path A9 carries out the transition to conductive path A10.
All conductive paths are cross-linked with each other, and conduction connects mutually.
Flow on the section bar 21 that can conduct electricity and flow to the electric current on the external conductive casing 41 of intermediate calender rolls 11 produces the Gao Funeng that concentrates in roll bending zone 40 zones the thermal treatment zone from section bar by the bigger external conductive casing that passes through roll 14 41 of input, the section bar of feasible sensitivity only concentrates in this deformation processing district and heats.
Also show, the same heating arrangements that has conductive path also can be arranged in vertical roller 15,16 zones that are provided with perpendicular to it.
Also expression, mandrel 25 is designed to conduct electricity, and wherein supporting member 26,27 conducts electricity equally, and electric current conducts backward by mandrel 6 at last.
Fig. 2 represents in addition, the heating that also can use the same method of backing roll 17 and respective roller 18, and wherein corresponding electric current is introduced by sending slide plate 66 to, and counter electrode for example is connected with the shell conduction of respective roller 18.
So just the conductive path 45-54 that is had circular mark B1 to B10 in the accompanying drawings.
Here the diversified bifurcated of conductive path also occurs, wherein the current flow heats in backing roll 17 and respective roller 18 zones is regarded the preheating of heating intrinsic in roll bending zone 40 as.
Here also imagine, the vertical roller 19,20 perpendicular to above-mentioned backing roll and respective roller distribution is set, they can heat in the same way.
Beginning is mentioned, and is made up of an external conductive casing 41 by each roller 11,14,17,18,15,16,19,20 of current flow heats device heating, and it is by the dead ring 43 of an electric insulation and also matrix 42 insulation of conduction sometimes.Corresponding then matrix 42 non-rotatably is connected with one 44 respectively.
Should also be noted that for Fig. 3 the output at heat tunnel 30 is equipped with a cover plate 39, from heat tunnel 30, overflow impermissibly with the heat that prevents to produce there.
Whole heater sets the transformer of a corresponding size size, and it provides corresponding electric energy.
The main distinction by hot flow forming and bending method of the present invention and cold-extruded bending is that bending roll need be clamp-oned the certain degree of depth of material for the treatment of deformation section when the cold-extruded bending, flows to reach tissue.This tissue flows through rolling effect and realizes, and this clamp-ons by (roll) profile cross section and treats that the deformation section certain depth reaches.Here with have significantly difference by novel hot flow forming and bending of the present invention because just like such roll itself of representing previously, that is intermediate calender rolls 11 and roll 14 no longer carry out the rolling of section bar itself, and only bear supporting role and conduction.
Because being created in, the resistance heated in roll bending zone 40 treats the in-house heating of deformation section, so that tissue becomes flexible.Corresponding magnesium section bar non-deformable processing when room temperature.Here above-mentioned rotation heating in roll bending zone makes the tissue of magnesium alloy to flow, and can deformation processing in bending roll 13 and the zone between the backing roll 17 that it is provided with.
This means that for high strength steel this high strength steel must be heated to 700 to 1000 ℃ temperature range in roll bending zone,, realize for the first time the deformation processing of this section bar thus so that make and in roll bending zone, can organize mobilely equally.
List of numerals
1 machine bridge shape frame, 28 ring chains
2 mandrels are station 29 directions of arrow fixedly
3 guiding stations, 30 heat tunnels
4 guiding stations, 31 heating stations
5 guiding stations, 32 heating stations
6 mandrel rod, 33 heating stations
7 mandrel rod 34 (on) radiator
8 clamping head 35 (side) radiators
9 send slide plate 36 guide rails (sending slide plate 9 to) to
10 drive units, 37 guide rollers
11 intermediate calender rolls, 38 spring parts
12 rotating shafts, 39 cover plates
13 bending rolls 13 ', 13 " 40 roll bending zones
14 rolls, 41 shells
15 vertical rollers, 42 matrixes
16 vertical rollers, 43 dead rings
44 of 17 backing rolls
18 respective roller, 45 conductive path B1
19 vertical rollers, 46 conductive path B2
20 vertical rollers, 47 conductive path B3
21,21 ' section bar, 48 conductive path B4
22 supporting tables, 49 conductive path B5
23 bottom surfaces (the crooked headstock), 50 conductive path B6
24 cover plates, 51 conductive path B7
25 mandrels, 52 conductive path B8
26 supporting members (back), 53 conductive path B9
27 supporting members (preceding), 54 conductive path B10
55 conductive path A1
56 conductive path A2
57 conductive path A3
58 conductive path A4
59 conductive path A5
60 conductive path A6
61 conductive path A7
62 conductive path A8
63 conductive path A9
64 conductive path A10
65 send slide plate to
66 send slide plate to
67 send slide plate to
The 70 crooked headstocks
Claims (19)
1. one kind is utilized bending machine closed to thin-walled, the section bar of semi-open type or open type carries out the method for hot flow forming and bending, described bending machine comprises that at least two edges treat crooked section bar (21,21 ') the oppositely disposed roller (17 of input direction, 18), leave certain axial distance in described roller back along input direction the intermediate calender rolls (11) that at least one roll (14) and is arranged on this roll opposite is set, the common formation one of described roll and intermediate calender rolls is used to section bar to be out of shape (21,21 ') roll bending zone (40), wherein at the port of export at least one being set can be towards the bending roll (13) for the treatment of that crooked section bar is sent to and retreated, it is characterized by: heating is arranged on the roller (11,14) in the roll bending zone (40) at least.
2. by the method for claim 1, it is characterized by: other roller that also heats bending machine.
3. by the method for claim 1 or 2, it is characterized by: heating is arranged on roll bending zone backing roll and opposed respective roller before along input direction, and they make treats that crooked section bar is supported with respect to the bending roll that is positioned at the front along input direction.
4. by each method of claim 1 to 3, it is characterized by; Be arranged on mutual opposed roll in the roll bending zone and make and can conduct electricity, and flow through by a big electric current, described electric current passes section bar to be out of shape (21,21 ') at least in the roll bending zone zone.
5. by each method of claim 1 to 4, it is characterized by: the electric current that applies also passes on the section bar inboard to be out of shape, and passes on the mandrel that is arranged in the roll bending zone inner chamber.
6. by each method of claim 1 to 5, it is characterized by: roller is by the heating of fluid heating agent.
7. by each method of claim 1 to 6, it is characterized by: roller is by electrically heated heating and/or the heating of heating helix tube.
8. by each method of claim 1 to 7, it is characterized by: roller heats by radiation heating and/or by the induction heating.
9. by each method of claim 1 to 8, it is characterized by: that also heats other is arranged on vertical roller in the roll bending zone perpendicular to described heated roller.
10. by each method of claim 1 to 8, it is characterized by: at the input of section bar that is in machine bridge shape frame zone, carry out preheating.
11. one kind is utilized bending machine closed to thin-walled, section bar half-open or open type carries out the device of hot flow forming and bending, described bending machine comprises that at least two edges treat crooked section bar (21,21 ') the oppositely disposed roller (17 of input direction, 18), leave certain axial distance in described roller back along input direction at least one roll (14) and an intermediate calender rolls (11) that is arranged on this roll opposite are set, the common formation one of described roll and intermediate calender rolls is used to section bar to be out of shape (21,21 ') roll bending zone (40), wherein at the port of export at least one being set can be towards the bending roll (13) for the treatment of that crooked section bar is sent to and retreated, it is characterized by: heating is arranged on the roller (11,14) in the roll bending zone (40) at least.
12. the device by claim 11 is characterized by: described device is used for implementing by one of claim 1 to 10 item or multinomial described method.
13. the device by claim 10 or 11 is characterized by: heated roll bending zone (40) is made up of the intermediate calender rolls (11) that rotation drives at least, and roll (14) is positioned at described intermediate calender rolls opposite.
14. the device by claim 10 or 13 is characterized by: section bar to be out of shape (21,21 ') is additionally promoted to pass roll bending zone (40).
15. by claim 10 or 14 device, it is characterized by: mandrel (25) heats in rolling bending (40) zone, and forms a supporting member (27) that is used for the section bar inner chamber.
16. device by claim 15, it is characterized by: fix a ring chain (28) at mandrel (25) front end, it is made up of the chain link that each is hinged, and described chain link abuts against on the inwall of hollow profile, and ring chain (28) is in bending roll (13) zone here.
17. by the device of claim 10 or 16, it is characterized by: in roll bending zone (40) zone vertical roller (15,16) is set, they are close on the upper and lower sidewall of section bar.
18. the device by claim 17 is characterized by: also heat vertical roller (15,16).
19. by claim 10 or 18 device, it is characterized by: electric current treats that through what can conduct electricity deformation section (21) is mobile by the shell (41) of the conduction of roll (14), and passes to therefrom on the shell (41) of conduction of intermediate calender rolls (11).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102004003682.9 | 2004-01-24 | ||
| DE102004003682A DE102004003682A1 (en) | 2004-01-24 | 2004-01-24 | Method for hot-flow forming and a device for carrying out the method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1909991A true CN1909991A (en) | 2007-02-07 |
Family
ID=34745078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2005800030843A Pending CN1909991A (en) | 2004-01-24 | 2005-01-11 | Hot flow forming and bending method, and device for carrying out said method |
Country Status (10)
| Country | Link |
|---|---|
| EP (1) | EP1706228B1 (en) |
| JP (1) | JP2007518571A (en) |
| KR (1) | KR20060126790A (en) |
| CN (1) | CN1909991A (en) |
| AT (1) | ATE367875T1 (en) |
| CA (1) | CA2553738A1 (en) |
| DE (2) | DE102004003682A1 (en) |
| MX (1) | MXPA06008166A (en) |
| RU (1) | RU2006130467A (en) |
| WO (1) | WO2005070581A1 (en) |
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| CN113182404B (en) * | 2021-07-01 | 2021-09-03 | 江苏晶杰光电科技有限公司 | Bending device for thin-wall metal pipe |
| CN113941629B (en) * | 2021-10-09 | 2024-04-16 | 上海航天精密机械研究所 | Laser-assisted roll bending forming method for difficult-to-deform profile |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3368377A (en) * | 1965-09-17 | 1968-02-13 | Hirayama Atsuo | Methods of bending electrically conductive long materials such as bar, rod, and pipe, and means therefor |
| DE2546695B2 (en) * | 1975-10-17 | 1979-10-31 | Daiichi Koshuha Kogyo K.K., Tokio | Device for the continuous bending of elongated workpieces |
| IT8453880V0 (en) * | 1984-10-02 | 1984-10-02 | Mauro Meliga | BENDING MACHINE FOR PROFILED AND SIMILAR TUBES |
| JP2736629B2 (en) * | 1995-11-24 | 1998-04-02 | 矢崎化工株式会社 | Cold bending method of ribbed resin-coated steel pipe and bent ribbed resin-coated steel pipe |
| FR2770794B1 (en) * | 1997-11-07 | 2000-01-21 | Silfax | DEVICE FOR HEATING A SHAPING TOOL |
-
2004
- 2004-01-24 DE DE102004003682A patent/DE102004003682A1/en not_active Ceased
-
2005
- 2005-01-11 CN CNA2005800030843A patent/CN1909991A/en active Pending
- 2005-01-11 MX MXPA06008166A patent/MXPA06008166A/en not_active Application Discontinuation
- 2005-01-11 AT AT05700800T patent/ATE367875T1/en not_active IP Right Cessation
- 2005-01-11 CA CA002553738A patent/CA2553738A1/en not_active Abandoned
- 2005-01-11 EP EP05700800A patent/EP1706228B1/en not_active Not-in-force
- 2005-01-11 KR KR1020067017094A patent/KR20060126790A/en not_active Application Discontinuation
- 2005-01-11 RU RU2006130467/02A patent/RU2006130467A/en not_active Application Discontinuation
- 2005-01-11 WO PCT/EP2005/000162 patent/WO2005070581A1/en active IP Right Grant
- 2005-01-11 DE DE502005001095T patent/DE502005001095D1/en not_active Expired - Fee Related
- 2005-01-11 JP JP2006549960A patent/JP2007518571A/en not_active Withdrawn
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102941256A (en) * | 2012-09-29 | 2013-02-27 | 安徽省宁国市晨光汽车零部件有限公司 | Pipe bender |
| CN103331345A (en) * | 2013-07-10 | 2013-10-02 | 西北工业大学 | Stretch-bending forming device with insulated stretching head and forming method thereof |
| CN103331345B (en) * | 2013-07-10 | 2015-04-08 | 西北工业大学 | Stretch-bending forming device with insulated stretching head and forming method thereof |
| CN103752666A (en) * | 2014-01-08 | 2014-04-30 | 哈尔滨理工大学 | Bending method of pipes with flexible chained-ball mandrel |
| CN104646962B (en) * | 2015-01-08 | 2017-06-27 | 舟山市奥博管业有限公司 | The preparation method of oil return pipe of supercharger |
| CN106391777A (en) * | 2016-10-19 | 2017-02-15 | 中安安轩安全产业发展有限公司 | Guardrail bending device suitable for site construction |
| CN113617903A (en) * | 2021-06-15 | 2021-11-09 | 浙江大学 | Hot bending forming device suitable for multi-size rectangular pipes |
| CN113617903B (en) * | 2021-06-15 | 2022-06-10 | 浙江大学 | Hot bending forming device suitable for multi-size rectangular pipes |
| CN113560826A (en) * | 2021-08-13 | 2021-10-29 | 燕山大学 | Welded pipe forming method for comprehensively controlling springback through warm forming and light over bending |
Also Published As
| Publication number | Publication date |
|---|---|
| ATE367875T1 (en) | 2007-08-15 |
| DE102004003682A1 (en) | 2005-08-11 |
| EP1706228B1 (en) | 2007-07-25 |
| MXPA06008166A (en) | 2007-01-30 |
| CA2553738A1 (en) | 2005-08-04 |
| WO2005070581A1 (en) | 2005-08-04 |
| KR20060126790A (en) | 2006-12-08 |
| RU2006130467A (en) | 2008-02-27 |
| JP2007518571A (en) | 2007-07-12 |
| EP1706228A1 (en) | 2006-10-04 |
| DE502005001095D1 (en) | 2007-09-06 |
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