CN102764808A - Hydraulic forming device and method of reducing cylindrical part - Google Patents
Hydraulic forming device and method of reducing cylindrical part Download PDFInfo
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- CN102764808A CN102764808A CN201210257436XA CN201210257436A CN102764808A CN 102764808 A CN102764808 A CN 102764808A CN 201210257436X A CN201210257436X A CN 201210257436XA CN 201210257436 A CN201210257436 A CN 201210257436A CN 102764808 A CN102764808 A CN 102764808A
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Abstract
A hydraulic forming device and method of a reducing cylindrical part relate to a hydraulic forming device and method of a metal plate. Aiming at the bottleneck problems of high cost, long cycle and poor forming property in a roll welding process used due to the fact that the reducing cylindrical part, the section of an axis part of which is of a bottle shape with a small upper part and a big lower part, is difficult to machine by using the traditional plate hydraulic forming method, the device comprises a lower concave die and an upper concave die; a blank holder and a convex die are arranged above the upper concave die; the shape of a cavity in the concave die is in accordance with the shape of the outer outline of a finally-formed cylindrical part, namely the cavity is configured into a reducing cylinder with the aperture gradually reduced from the bottom to the top or reducing in a stepped form; and the lower concave die and the convex die are respectively provided with an injection hole. The forming method sequentially comprises the following steps of: injecting medium in the cavity, arranging blanks, pressing the blanks, applying backpressure, downwards moving the convex die, and pressing in the inner cavity of a pre-formed part in order to close to the die. The blanks are under the action of a pressure difference of inner and outer dynamic fluids in the forming process due to the injection holes arranged in the convex die, the die-close forming of the blanks is finished at one step, and the formed part can be smoothly taken out due to the design of the combined concave die.
Description
Technical field
The present invention relates to a kind of hydroforming equipment and method of sheet metal; Be specifically related to a kind of hydraulic means and method of the reducing cylindrical member that is used to be shaped, particularly a kind ofly reduce gradually or the hydroforming equipment and the method for the stepped reducing cylindrical member that reduces to top external diameter by the bottom.
Background technology
In order to realize energy-saving and emission-reduction, the meaning of light-weight design is highlighted day by day.Realize that light-weighted approach has two kinds: material lightweight and light in structure quantize.Technological liquid water or the oil of adopting of sheet metal hydroforming replaces traditional rigid punch or die as the power transmission medium, makes blank applying die or punch shaping under the effect of power transmission pressure medium.The hydroforming technology is in the weak point that all can overcome traditional handicraft aspect sheet material or the forming tubular product; Be easy to realize that flexibility is shaped; Improved the crystallized ability of sheet material or tubing effectively; Reduced the surface scratch of part, under the prerequisite that structural strength and function application etc. all increases, reduced the gross weight of part, made light in structure quantize to be achieved.
The hydroforming technology is suitable for the comparatively complicated thin-walled hollow class A of geometric unitA of processing and manufacturing profile in one procedure, and the larger ratio of height to diameter cylindrical member consistent with the punch shape that be shaped had significant advantage.Need multiple working procedure than common sheet material drawing and forming, adopt the hydroforming technology can realize once-forming.Be primarily characterized in that and adopt water or emulsion, be injected in the concave die cavity, in die cavity, apply interior pressure through external booster as liquid power transmission medium; The fluid pressure action that is produced is on shaped sheet; Make it be adjacent to punch, the frictional force between shaped sheet and the punch increases under the effect of fluid back pressure gradually, forms useful friction; Improve of the influence of punch-nose angle place tension, thereby avoid this place's material production attenuate even defective such as break this place's material flow behavior.The fluid at flanging position, flange place plays copious oil supply between sheet material and sealing ring, thereby has guaranteed to improve the purpose of sheet material forming performance and surface quality.Based on above-mentioned advantage, the sheet metal hydroforming technology has obtained extensive use in fields such as Aero-Space and automobiles, and under this promotes, has obtained fast development.
Along with the development of advanced field product design at the aspects such as hommization of complicated, the design concept of the diversification of instructions for use, geometric properties, having more, the product of labyrinth profile has also brought challenge for current forming technology.Ampuliform reducing cylindrical member drawing and forming like the stepped variation of external diameter; Such cylindrical member can be achieved in the sheet metal hydroforming technology through the punch shape is optimized design, and the cylindrical member to the stepped increase of top external diameter is shaped but this method only limits to from the bottom.When if the external diameter that the reducing cylindrical member is made progress by the bottom reduces gradually, the conventional hydraulic manufacturing process then is difficult to be shaped, and in other words, can't realize through the punch shape is designed at all; For this class A of geometric unitA; Can earlier sheet metal bending be processed into steppedly, be welded into shape through volume and go out straight-arm and stepped portion, be connected into shape with the tube back welding again; Shortcomings such as not only operation is various, and the part after the welding exists residual stress, poor reliability simultaneously, cost is high, efficient is low.
Summary of the invention
The present invention is in order to solve to being reduced gradually or the stepped reducing cylindrical member that reduces adopts conventional panels hydro-drawing manufacturing process to be difficult to shape to top external diameter by the bottom; And adopt volume welder skill to have that cost is higher, the cycle long, the bottleneck problem of forming property difference, and then a kind of hydroforming equipment and method of reducing cylindrical member are provided.
The present invention solves the problems of the technologies described above the technical scheme of taking to be:
The hydroforming equipment of reducing cylindrical member according to the invention comprises combined die, punch, blank holder, die hand-hole and punch hand-hole; Said punch is columned drift and cooperates with blank holder is airtight; Said combined die is made up of with lower cavity die upper cavity die and the two airtight connection of joint face, and the die cavity in the die is a power transmission medium cavity; Die cavity in the said die is consistent with the outer contour shape of whole shaping cylindrical member, is to be made progress by the bottom that the aperture reduces gradually or the stepped reducing tubular that reduces; Blank holder places the top of upper cavity die and the gap between the two to be used to insert and put the sheet material blank; Have the die hand-hole that communicates with power transmission medium cavity on the sidewall of lower cavity die, in power transmission medium cavity, inject the power transmission medium through the die hand-hole and apply fluid pressure dorsad with outer surface to the preform cylindrical member; Have the punch hand-hole on the said punch, in preform cylindrical member cavity, inject the power transmission medium, thereby make the power transmission medium apply hydraulic expanding-forming power initiatively the sheet material blank in the forming process through the punch hand-hole.
The method of utilizing above-mentioned building mortion to carry out hydroforming, said method realizes according to following steps: step 1, by designing requirement upper cavity die and lower cavity die are connected, form complete reducing tubular die cavity; Step 2, the die hand-hole on the lower cavity die and the punch hand-hole on the punch are linked to each other with external booster through high-pressure oil pipe respectively; Independent control; Then through die hand-hole injected media in power transmission medium cavity; Make medium be full of power transmission medium cavity, in the punch hand-hole, inject a small amount of power transmission medium until differing certain distance with the upper cavity die upper surface; Step 3, the sheet material blank is placed on the upper cavity die that close second seal is installed; Step 4, blank holder, punch are connected with the forcing press device for exerting respectively; Through the adjusting forcing press blank holder being come downwards to the sheet material blank comes in contact; Apply certain pressure-pad-force (shown in figure acceptance of the bid F) this moment; Second sealing ring is fully contacted with the sheet material blank, form flooded lubrication, produce fold when the shaping feeding to avoid blank flange district; The control of pressure-pad-force size is looked specific requirement and is decided; Step 5, through controlled pressure machine master slider motion punch is come downwards to the sheet material blank to come in contact; The contact continued presses down; Apply interior pressure through external booster this moment in power transmission medium cavity; The sheet material blank is produced fluid pressure dorsad, and the excessive sheet material blank that causes of pressure caves in to hand-hole in order to avoid dorsad, makes through regulating external booster that homalographic pressure equates in punch hand-hole section hydrostatic pressure and the power transmission medium cavity, in the opposite direction; After treating that punch comes downwards to the bottom surface slight distance in the lower cavity die, the stop motion of forcing press master slider; Step 6, through the slowly injected media pressurization in the punch hand-hole of external booster; Control simultaneously that hydraulic pressure keeps constant dynamic pressure differential with the interior hydraulic pressure of preform cylindrical member cavity in the power transmission medium cavity; Make the sheet material blank under the effect of dynamic pressure differential, paste contour forming, process finishes; Step 7, shed the pressure in power transmission medium cavity, the preform cylindrical member cavity through external booster, it is up that master slider drives punch, makes blank holder up through forcing press unloading pressure-pad-force, and combined die is separated, and takes out formation of parts.
The present invention has following beneficial effect:
The present invention has realized that the up-small and down-big ampuliform reducing cylindrical member in cross section adopts the sheet metal hydroforming method to process; Promptly realize shaping of reducing cylindrical member (reducing gradually or the stepped reducing cylindrical member that reduces to top external diameter), thereby reach the requirement of raising the efficiency, reduce cost, improve the part total quality by the bottom through one procedure.
Innovation part of the present invention just is through on punch, opening hand-hole, and die is processed the split type conventional panels hydroforming method of having captured is difficult to into up-small and down-big this technical barrier of reducing cylindrical member of tee section.Through boring oilhole at the punch axis part and linking to each other with external booster by high-pressure oil pipe.At first carry out the sheet material liquid filling deep-drawing forming; When punch is reduced to smaller value with sheet material pull and stretch to matrix cavity when bottom with the matrix cavity internal pressure or shed; Inject the power transmission medium and begin supercharging to the sheet material upper surface through the punch hand-hole, under the mating reaction of matrix cavity inner fluid back pressure, realize the shaping of reducing cylindrical member simultaneously.Shed punch and matrix cavity internal pressure after the shaping respectively, remove punch and combined die is separated the taking-up formation of parts.Utilize the shape of the hydroforming part that the present invention realizes to depend on the shape of concave die cavity fully.
Punch external diameter according to the invention is formation of parts external diameter value minimum of a value position, guarantees that punch can get in the concave die cavity smoothly.Adopt the combined die structure to be convenient to split, and be beneficial to be shaped back taking-up part and die cavity cleaning.Use device and method according to the invention can be implemented in the mold device and one-stroke internal shaping reducing cylindrical part, thereby improved production efficiency and total quality.
The concrete advantage of the inventive method is following: one, can realize shaping of reducing cylindrical member that the cross section is up-small and down-big through first hydro-mechanical drawing-back hydraulic expansion method; At the bottom of can successively making when two, utilizing this method to be shaped tin and sidewall position sheet material produce the moderate finite deformation amount, compare than the conventional panels forming technology, be easy to improve the uniformity and the forming property of the whole wall thickness of part; Three, on punch, open hand-hole and link to each other separately, can realize the independent accurately control of difference of hydraulic pressure in this road hydraulic pressure and the matrix cavity, the once-forming of realization reducing cylindrical member under the two rational Match effect with booster; Four, the design of combined die cavity structure is beneficial to the reducing cylindrical member shaping of this category feature and is easy to the demoulding.Apparatus of the present invention are simple and reliable for structure, and manufacturing technology is ripe, are easy to implement aborning, promotion and application.
Description of drawings
Fig. 1 is building mortion and a blank position relation condition sketch map (being full of the power transmission medium in the power transmission medium cavity 4) before the specific embodiment one is shaped; Fig. 2 is building mortion and a blank position relation condition sketch map (punch 1 has come downwards to ultimate range) in the specific embodiment one forming process; Fig. 3 utilizes the specific embodiment of the invention one to be shaped back hydraulic device structure sketch map (through the slowly injected media pressurization in punch hand-hole 11 of external booster; Control power transmission medium cavity 4 interior hydraulic pressure and the interior hydraulic pressure of preform cylindrical member cavity 4-2 simultaneously and keep constant dynamic pressure differential, make sheet material blank 9 under the effect of dynamic pressure differential, paste contour forming); Provide concave die cavity among Fig. 1～Fig. 3 and serve as reasons that upwards to be reducing ladder angle be the stepped reducing tubulars that reduce of 45 degree in the aperture in the bottom.
Fig. 4 is building mortion and a blank position relation condition sketch map (being full of the power transmission medium in the power transmission medium cavity 4) before the specific embodiment two is shaped, and building mortion and blank position relation condition sketch map omit in the specific embodiment two forming processes, and be similar with Fig. 2; Fig. 5 utilizes the specific embodiment of the invention two to be shaped back hydraulic device structure sketch map (through the slowly injected media pressurization in punch hand-hole 11 of external booster; Control power transmission medium cavity 4 interior hydraulic pressure and the interior hydraulic pressure of preform cylindrical member cavity 4-2 simultaneously and keep constant dynamic pressure differential, make sheet material blank 9 under the effect of dynamic pressure differential, paste contour forming); Provide concave die cavity among Fig. 4 and Fig. 5 and serve as reasons that upwards to be reducing ladder angle be the stepped reducing tubulars that reduce of 30 degree in the aperture in the bottom.
Fig. 6 is building mortion and a blank position relation condition sketch map (being full of the power transmission medium in the power transmission medium cavity 4) before the specific embodiment three is shaped, and building mortion and blank position relation condition sketch map omit in the specific embodiment three forming processes, and be similar with Fig. 2; Fig. 7 utilizes the specific embodiment of the invention three to be shaped back hydraulic device structure sketch map (through the slowly injected media pressurization in punch hand-hole 11 of external booster; Control power transmission medium cavity 4 interior hydraulic pressure and the interior hydraulic pressure of preform cylindrical member cavity 4-2 simultaneously and keep constant dynamic pressure differential, make sheet material blank 9 under the effect of dynamic pressure differential, paste contour forming); Provide the concave die cavity upwards reducing tubular that reduces gradually of aperture of bottom of serving as reasons among Fig. 6 and Fig. 7.
The specific embodiment
The specific embodiment one: specify this embodiment below in conjunction with Fig. 1, Fig. 2 and Fig. 3.This device comprises lower cavity die 5, and said lower cavity die 5 is provided with the hand-hole 6 that communicates with power transmission medium cavity 4, in lower cavity die 5, injects the power transmission medium through hand-hole 6 during work; Lower cavity die 5 open upper end; Said lower cavity die 5 adopts with upper cavity die 3 and is connected; Form complete stepped reducing cylindrical mould; Wherein upper cavity die 3 place's reducing ladder angles are 45 ° (the ladder angle is the angle of cascaded surface axis and vertical direction), between lower cavity die 5 and upper cavity die 3, are provided with sealing ring 7, prevent dielectric leakage; Said upper cavity die 3 tops are equipped with blank holder 2 and punch 1; Blank 9 is folded between upper cavity die 3 and the blank holder 2; Between upper cavity die 3 and blank holder 2, leave certain interval and be provided with sealing ring 8, after purpose is upper cavity die 3 and blank holder 2 matched moulds, avoid the media in the cavity 4 outwards to overflow; Play copious oil supply simultaneously, thereby guarantee feeding and improve the drip molding surface accuracy; Said punch 1 sidewall position is provided with the hand-hole 11 that communicates with its lower surface axis part; The sidewall drill hole links to each other with external booster through high-pressure oil pipe; In preform cylindrical member cavity 4-2, inject the power transmission medium through hand-hole 11 during work, thereby make medium apply hydraulic expanding-forming power blank 9; On said upper cavity die 3 and blank holder 2, be equipped with the endoporus that supplies punch 1 to pass through; The external diameter of said punch 1 is simultaneously less than the internal orifice dimension of upper cavity die 3 with blank holder 2; Difference in size is slightly larger than the preform panel thickness between said punch 1 external diameter and upper cavity die 3 internal orifice dimensions; Be provided with sealing ring 10 between said punch 1 and the blank holder 2, when purpose is that the power transmission medium applies hydraulic expanding-forming power to blank 9, avoid the medium in the preform cylindrical member cavity 4-2 outwards to overflow.
The specific embodiment two: specify this embodiment below in conjunction with Fig. 4, Fig. 5.This embodiment is that with the difference of the specific embodiment one upper cavity die 3 place's reducing ladder angles are 30 °, and it is identical with the specific embodiment one that other forms structure.
The specific embodiment three: specify this embodiment below in conjunction with Fig. 6, Fig. 7.The difference of this embodiment and the specific embodiment one cylindrical member that is to be shaped is the conically shaped that external diameter is linear increment from top to bottom; Said lower cavity die 5 forms complete taper die with upper cavity die 3; Wherein upper cavity die 3 is provided with the medium hand-hole, and it is identical with the specific embodiment one that other forms structure.
The specific embodiment four: the detailed process of utilizing said apparatus to form is following:
One, by designing requirement upper cavity die 3 and lower cavity die 5 are connected, form complete reducing tubular die cavity;
Two, the hand-hole 11 on hand-hole on the lower cavity die 56 and the punch 1 is linked to each other with external booster through high-pressure oil pipe respectively; Independent control; Then through hand-hole 6 injected media in cavity 4; Make medium be full of cavity 4, in hand-hole 11, inject a small amount of medium until differing certain distance with upper cavity die 3 upper surfaces;
Three, sheet material blank 9 is placed on the upper cavity die 3 that sealing ring 8 is installed;
Four, blank holder 2, punch 1 are connected with the forcing press device for exerting respectively; Through the adjusting forcing press blank holder being come downwards to blank 9 comes in contact; Apply certain pressure-pad-force (shown in figure acceptance of the bid F) this moment; Sealing ring 8 is fully contacted with blank 9, form flooded lubrication, also when the shaping feeding, produce fold for fear of blank 9 flange districts; The control of pressure-pad-force size is looked specific requirement and is decided;
Five, through the motion of controlled pressure machine master slider punch 1 being come downwards to blank 9 comes in contact; The contact continued presses down; Apply interior pressure through external booster to cavity 4 this moment; Sheet material blank 9 is produced fluids pressure dorsad, and the excessive blank that causes of pressure caves in to hand-hole 11 in order to avoid dorsad, through regulate external booster make hand-hole 11 section hydrostatic pressures equate with cavity 4 interior homalographic pressure, in the opposite direction; Treat that punch 1 comes downwards to after lower cavity die 5 bottom surface slight distance the stop motion of forcing press master slider;
Six, through the slowly injected media pressurization in hand-hole 11 of external booster; Control cavity 4 interior hydraulic pressure and the interior hydraulic pressure of preform cylindrical member cavity 4-2 simultaneously and keep constant dynamic pressure differential; Make blank 9 under the effect of dynamic pressure differential, paste contour forming, process finishes;
Seven, shed cavity 4, preform cylindrical member cavity 4-2 internal pressure through external booster, it is up that master slider drives punch 1, makes blank holder 2 up through forcing press unloading pressure-pad-force, and combined die is separated, and takes out formation of parts and get final product.
The hydroforming equipment of the specific embodiment five: 7, a kind of reducing cylindrical member according to claim 6 is characterized in that: in step 2, make medium be full of power transmission medium cavity 4 until differing the distance of 1～5mm with upper cavity die 3 upper surfaces.Other operating procedure is identical with the specific embodiment four.
The hydroforming equipment of the specific embodiment six: 8, a kind of reducing cylindrical member according to claim 7 is characterized in that: in step 5, treat that punch 1 comes downwards to the distance of the bottom surface 1～20mm in the lower cavity die 5 after, the stop motion of forcing press master slider.Can avoid punch 1 and the bottom surface in the preform cylindrical member directly to touch like this, make the subsides contour forming of preform cylindrical member rely on the interior power transmission medium that injects of preform cylindrical member cavity 4-2 to accomplish, thereby improve the quality of whole shaping cylindrical member.Other operating procedure is identical with the specific embodiment five.
Claims (8)
1. the hydroforming equipment of a reducing cylindrical member; It is characterized in that: said building mortion comprises combined die, punch (1), blank holder (2), die hand-hole (6) and punch hand-hole (11); Said punch (1) be columned drift and with airtight cooperation of blank holder (2); Said combined die is by upper cavity die (3) and lower cavity die (5) formation and airtight connection of joint face of the two, and the die cavity in the die is a power transmission medium cavity (4); Die cavity in the said die is consistent with the outer contour shape of whole shaping cylindrical member, is to be made progress by the bottom that the aperture reduces gradually or the stepped reducing tubular that reduces; Blank holder (2) places the top of upper cavity die (3) and the gap between the two to be used to insert and put sheet material blank (9); Have the die hand-hole (6) that communicates with power transmission medium cavity (4) on the sidewall of lower cavity die (5), in power transmission medium cavity (4), inject the power transmission medium through die hand-hole (6) and apply fluid pressure dorsad with outer surface to the preform cylindrical member; Have punch hand-hole (11) on the said punch (1), in preform cylindrical member cavity (4-2), inject the power transmission medium, thereby make the power transmission medium apply hydraulic expanding-forming power initiatively the sheet material blank (9) in the forming process through punch hand-hole (11).
2. the hydroforming equipment of a kind of reducing cylindrical member according to claim 1 is characterized in that: said building mortion also comprises first sealing ring (10), is provided with first sealing ring (10) between said punch (1) and the blank holder (2).
3. the hydroforming equipment of a kind of reducing cylindrical member according to claim 2; It is characterized in that: said building mortion also comprises second sealing ring (8) and the 3rd sealing ring (7); Between upper cavity die (3) and blank holder (2), be provided with second sealing ring (8), between lower cavity die (5) and upper cavity die (3), be provided with the 3rd sealing ring (7).
4. according to the hydroforming equipment of claim 1,2 or 3 described a kind of reducing cylindrical member; It is characterized in that: said punch hand-hole (11) is a through hole; One end opening of punch hand-hole (11) is positioned at punch (1) sidewall position; The other end opening of punch hand-hole (11) is positioned at punch (1) lower surface axis part, and the one section axial location place that is opened in punch (1) that is positioned at outlet of punch hand-hole (11).
5. the hydroforming equipment of a kind of reducing cylindrical member according to claim 4 is characterized in that: said punch hand-hole (11) is L shaped through hole, and the vertical section in the L shaped through hole is positioned at the axial location place of punch (1).
6. one kind is utilized above-mentioned any method that the described building mortion of claim carries out hydroforming; It is characterized in that: said method realizes according to following steps: step 1, by designing requirement upper cavity die (3) and lower cavity die (5) are connected, form complete reducing tubular die cavity; Step 2, the die hand-hole (6) on the lower cavity die (5) and the punch hand-hole (11) on the punch (1) are linked to each other with external booster through high-pressure oil pipe respectively; Independent control; Then through die hand-hole (6) injected media in power transmission medium cavity (4); Make medium be full of power transmission medium cavity (4), in punch hand-hole (11), inject a small amount of power transmission medium until differing certain distance with upper cavity die (3) upper surface; Step 3, sheet material blank (9) is placed on the upper cavity die (3) that close second seal (8) is installed; Step 4, blank holder (2), punch (1) are connected with the forcing press device for exerting respectively; Through the adjusting forcing press blank holder (2) being come downwards to sheet material blank (9) comes in contact; Apply certain pressure-pad-force this moment; Second sealing ring (8) is fully contacted with sheet material blank (9), form flooded lubrication, produce fold when the shaping feeding to avoid blank (9) flange district; The control of pressure-pad-force size is looked specific requirement and is decided; Step 5, through controlled pressure machine master slider motion punch (1) is come downwards to sheet material blank (9) to come in contact; The contact continued presses down; Apply interior pressure through external booster this moment in power transmission medium cavity (4); Sheet material blank (9) is produced fluid pressure dorsad, and the excessive sheet material blank (9) that causes of pressure caves in to hand-hole (11) in order to avoid dorsad, through regulate external booster make punch hand-hole (11) section hydrostatic pressure equate with the interior homalographic pressure of power transmission medium cavity (4), in the opposite direction; After treating that punch (1) comes downwards to the bottom surface slight distance in the lower cavity die (5), the stop motion of forcing press master slider; Step 6, through external booster to punch hand-hole (11) in slowly injected media pressurize; Control the interior hydraulic pressure of power transmission medium cavity (4) simultaneously and the interior hydraulic pressure of preform cylindrical member cavity (4-2) keeps constant dynamic pressure differential; Make sheet material blank (9) under the effect of dynamic pressure differential, paste contour forming, process finishes; Step 7, shed the pressure in the power transmission medium cavity (4), preform cylindrical member cavity (4-2) through external booster; It is up that master slider drives punch (1); Make blank holder (2) up through forcing press unloading pressure-pad-force, combined die is separated, take out formation of parts.
7. the hydroforming method of a kind of reducing cylindrical member according to claim 6 is characterized in that: in step 2, make medium be full of power transmission medium cavity (4) until differing the distance of 1～5mm with upper cavity die (3) upper surface.
8. the hydroforming method of a kind of reducing cylindrical member according to claim 7 is characterized in that: in step 5, treat that punch (1) comes downwards to after the distance of the interior bottom surface 1～20mm of lower cavity die (5) stop motion of forcing press master slider.
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| CN201210257436.XA CN102764808B (en) | 2012-07-24 | 2012-07-24 | Hydraulic forming device and method of reducing cylindrical part |
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| CN201210257436.XA CN102764808B (en) | 2012-07-24 | 2012-07-24 | Hydraulic forming device and method of reducing cylindrical part |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61253129A (en) * | 1985-05-02 | 1986-11-11 | Mitsubishi Heavy Ind Ltd | Hydraulic pressure forming |
| CN1033760A (en) * | 1987-12-25 | 1989-07-12 | 陶开土 | Sealed negative-camber moulding method using high-pressure liquid |
| DE10028804A1 (en) * | 2000-06-15 | 2001-12-20 | Schuler Smg Gmbh & Co Kg | Hydro-forming of sheet with forming press halts punch once to raise medium pressure and then re-set with sheetholder force reduced during punch movement. |
| CN100418658C (en) * | 2006-07-28 | 2008-09-17 | 哈尔滨工业大学 | Procesing equipment capable of improving plate part formation limitation and method therefor |
| CN101422797A (en) * | 2007-10-31 | 2009-05-06 | 中国科学院金属研究所 | Metal sheet forming method |
| CN102248056A (en) * | 2011-06-13 | 2011-11-23 | 北京航空航天大学 | Method for improving sheet forming limit |
| CN102284588A (en) * | 2011-06-13 | 2011-12-21 | 北京航空航天大学 | Device for improving forming limit of plate |
-
2012
- 2012-07-24 CN CN201210257436.XA patent/CN102764808B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61253129A (en) * | 1985-05-02 | 1986-11-11 | Mitsubishi Heavy Ind Ltd | Hydraulic pressure forming |
| CN1033760A (en) * | 1987-12-25 | 1989-07-12 | 陶开土 | Sealed negative-camber moulding method using high-pressure liquid |
| DE10028804A1 (en) * | 2000-06-15 | 2001-12-20 | Schuler Smg Gmbh & Co Kg | Hydro-forming of sheet with forming press halts punch once to raise medium pressure and then re-set with sheetholder force reduced during punch movement. |
| CN100418658C (en) * | 2006-07-28 | 2008-09-17 | 哈尔滨工业大学 | Procesing equipment capable of improving plate part formation limitation and method therefor |
| CN101422797A (en) * | 2007-10-31 | 2009-05-06 | 中国科学院金属研究所 | Metal sheet forming method |
| CN102248056A (en) * | 2011-06-13 | 2011-11-23 | 北京航空航天大学 | Method for improving sheet forming limit |
| CN102284588A (en) * | 2011-06-13 | 2011-12-21 | 北京航空航天大学 | Device for improving forming limit of plate |
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