US20080257004A1 - Bending Device Comprising Compensator Rollers - Google Patents

Bending Device Comprising Compensator Rollers Download PDF

Info

Publication number
US20080257004A1
US20080257004A1 US10/587,031 US58703105A US2008257004A1 US 20080257004 A1 US20080257004 A1 US 20080257004A1 US 58703105 A US58703105 A US 58703105A US 2008257004 A1 US2008257004 A1 US 2008257004A1
Authority
US
United States
Prior art keywords
bend
bending
roller
structural section
outside
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US10/587,031
Other languages
English (en)
Inventor
Walter Spaeth
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KLINGENLNBERG AG
Original Assignee
KLINGENLNBERG AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by KLINGENLNBERG AG filed Critical KLINGENLNBERG AG
Assigned to KLINGENLNBERG AG reassignment KLINGENLNBERG AG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SPAETH, WALTER
Publication of US20080257004A1 publication Critical patent/US20080257004A1/en
Abandoned legal-status Critical Current

Links

Images

Classifications

    • 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
    • B21D7/08—Bending rods, profiles, or tubes by passing between rollers or through a curved die

Definitions

  • the invention relates to a bending apparatus comprising oscillating forming rollers according to the precharacterizing portion of claim 1 .
  • the invention reveals a novel bending process, which will be referred to below also as cold flow forming and bending.
  • a four-roller bending machine is provided with a mandrel shank, which is positioned in the interior of the structural section in the bending zone.
  • the bending machine comprises a central roller that rests against the inside of the structural section being bent, a forming roller that rests against the outside of the bend, and a bending roller that is disposed at the outgoing side of the structural section, which acts upon the outside of the bend, namely counter to the supporting effect of a support roller that rests against the outside of the bend at the incoming side.
  • Stretching and upsetting are events that result from the introduction of forces to overcome the resistance moment of a structural section to be bent; these forces cause a grain flow of the material in the structural section to be bent.
  • the stretching and upsetting flow is caused by large tensile and pressure forces being created in the outside and inside region of a section bend when its elasticity limit is exceeded.
  • micro-cracks or macro-cracks it was nonetheless possible for so-called micro-cracks or macro-cracks to occur in the side wall of the structural section being bent, or shear forces in the transition areas between the rolled and unrolled wall, which could result in a separation of the material. The homogeneity of the structure was disturbed or even broken.
  • the invention is therefore based on the object of improving a bending apparatus of the above type in such a way that an optimal forming of a structural section is achieved without interfering with the homogeneity of the structure, while preventing micro-cracks or macro-cracks from forming in the side walls of the structural section.
  • the purpose of this is to achieve a clean and dimensionally accurate cross-section shape of the structural section being bent, and a clean surface.
  • the invention is characterized by the technical teaching of the claim.
  • the homogeneity of the stock during the bending process remains largely intact, or it is even improved due to the inventive compression of all walls (outside of the bend, inside of the bend, side wall on top, side wall at bottom).
  • the invention accordingly proposes additional rollers that rest against the upper and lower side wall, which will be referred to in the following text as oscillating forming rollers.
  • the invention is not limited to the term “oscillating forming roller”.
  • these forming rollers (with or without contour) are arranged non-oscillating but rigid.
  • the invention deals mainly with the induced grain flow, which extends from the outside of the bend of the structural section toward the inside of the bend, and it controls this grain flow by affixing upper and lower oscillating forming rollers at the upper and lower side walls, in order to thus deflect the grain flow from the outside of the bend to the inside of the bend and pass it into said inner bend.
  • the volume shift effects a longitudinal flow, resulting in a lengthening above the bending line.
  • an arc-shaped profile that lies in the xy-plane is obtained after the bending process. It is embodied by an outside of the bend and an inside of the bend, wherein the so-called forming roller rests against the outside of the bend while the so-called central roller rests against the inside of the bend.
  • the roll-out action of the forming roller on the outside of the bend causes a lengthening of the material, which is accompanied by a controlled material flow in a lengthwise direction, to thus create the outside of the bend.
  • the two walls which are usually arranged plane-parallel to each other
  • front walls The walls extending perpendicular to the former will be referred to as “side walls”.
  • the invention now deals with the material flows that are created in the front wall on the outside of the bend, which, according to the invention, are deflected by the novel oscillating forming rollers—which act upon the side walls—over the respective side walls to the front wall on the inside of the bend.
  • upper and lower oscillating forming rollers are now provided, which come to rest in each case against the upper and lower side wall. These absorb the material flow from the inside and outside of the bend and distribute it, depending on the penetration depth and incline of the oscillating forming rollers, into the entire contact surface of the upper and lower side wall.
  • the upper and lower oscillating forming rollers are positioned conically toward each other with respect to their axial position against the plane-parallelism of the structural section to be bent.
  • the inclined positioning of the axial position of the two upper and lower oscillating forming rollers is therefore such that the oscillating forming rollers have a relative penetration depth into the material at the upper and lower side wall at the outside of the bend, whereas this penetration depth may taper off adjusted to 0 toward the inside of the bend.
  • the invention is obviously not limited to the elimination of the bending roller. Provision may also be made for the bending roller to still exist and for the oscillating forming rollers that are provided here according to the invention, which act upon the upper and lower side wall of the structural section, to be provided in addition.
  • the bending line is moved to the inside of the bend and a grain flow from the outside of the bend is induced in this manner toward the inside of the bend. This is achieved by means of differently adjustable longitudinal axial angles of the oscillating forming rollers and their penetration depths into the material to be formed.
  • the penetration depth of the roller (forming roller) resting against the outside of the bend is absorbed by the oscillating forming rollers that are arranged perpendicular to the former and act upon the side walls, and it is deflected into the side walls and routed over the side walls toward the inside of the bend.
  • rollers It is important that no gap or free space between the roller (forming roller) located on the outside of the bend and the perpendicularly adjoining oscillating forming roller is created at the structural section to be formed. These rollers should therefore enclose the structural section to be formed in as form-fitting a manner as possible, in order to prevent any lateral yielding, bulging, and the like in this gap region.
  • the invention is not limited, in the case of the so-called roll-out bending, to only the oscillating rollers that rest against the side walls being positioned conically inclined toward each other. It may also be provided in an additional embodiment in the case of certain structural section shapes and special wall thicknesses, that the forming and central rollers that rest against the inside and outside of the bend are implemented correspondingly oscillating and can accordingly also be positioned toward each other at an incline.
  • the bending line remains in the gravity line, i.e., approximately in the center of the structural section to be bent, provided that the section is symmetrical.
  • the upper and lower oscillating forming rollers that rest against the upper and lower side walls can either be positioned slanted toward each other in an oscillating manner, or that they have a double-conical roller surface
  • Gravity bending describes a bending condition in which the structural section is subjected to a thinning and lengthening of the wall thickness over the neutral line, i.e., the gravity line, in the region of the outside of the bend by means of a stretching beyond the gravity line.
  • This rule applies to a structural section that is shaped symmetrically with respect to its cross-section and walls.
  • This physical process also produces a reduction in layout, even though minimal, due to the gravity line being displaced inward.
  • the gravity line i.e., the center of gravity, is shifted by the measure X toward the inside of the bend; caused by the material volume shift.
  • the inside cross section of the structural section remains largely intact because of the mandrel shank tool.
  • This realization forms the basis for the volume calculation for determining the various roller penetration depths at the section walls and the radii of a structural section to be bent, which, as a result, can be adjusted in a controlled manner.
  • the oscillating forming rollers are now adjusted in the front and side wall region in correspondence with the above physical shifting phenomena and the volume changes calculated therefrom.
  • roller upset bending As the third embodiment of the invention, the so-called roller upset bending will be described in more detail.
  • upper and lower oscillating forming rollers in combination with a bending roller that is disposed axially offset relative to the above-mentioned rollers.
  • the bending line in this case, is moved to the outside of the bend and the conical material thickening of the side walls are deflected into the inner wall of the bend.
  • the main upsetting forces are generated at the inner wall of the bend through shortening of the bend layout.
  • Roller upset bending uses decelerated opposed central and forming rollers, i.e., the speed of the respective roller resting against the outside and inside of the structural section is less than the speed of the structural section through the bending gap. Additionally arranged at the inside and outside of the bend are so-called brake-shoes that increase the resistance on the structural section to be bent, and a strong upsetting effect is thus created in the neutral axis.
  • all three bending methods are based on the realization that a disturbance of the structural composition is prevented through symmetrical or asymmetrical volume shifts of the cross section of a structural section by means of oscillating forming rollers that rest against the upper and lower side walls.
  • the internal geometry (i.e., the interior cross-sectional shape) of a structural section remains dimensionally unchanged.
  • the bending line in this case, is the line at which the forces for the stretching and upsetting build up and form the respective structural section.
  • the present invention is directed not only to a two-dimensional forming of a section, but that it can additionally also be achieved through the arrangement of either contoured or oscillating forming rollers that a spiral can be bent (in three-dimensional shape) from a two-dimensional section.
  • the bending roller and also the other known auxiliary means may even be eliminated, as this spiral shape is attained simply as a result of the volume shifting (due to the oscillating forming rollers).
  • the upper and lower oscillating forming rollers still serve to create the desired grain flow and radius of the bend.
  • the object of the present invention is derived not only from the subject matter of the individual claims, but also from the combination of the individual claims among each other.
  • FIG. 1 in a schematic illustration, the bending of a two-dimensional structural section
  • FIG. 2 the deformation of a structural section in the bending process according to FIG. 1 if a mandrel shank that is moved along in the bending zone is dispensed with;
  • FIG. 3 a schematic top view of a bending apparatus in a first embodiment
  • FIG. 4 a section along line A-A in FIG. 3 ;
  • FIG. 5 the enlarged depiction of the profile to be bent under the effect of the rollers in the gravity bending process
  • FIG. 6 the enlarged depiction of the section to be bent under the effect of the various rollers in the roll-out bending process
  • FIG. 7 the second embodiment of a bending apparatus in the top view
  • FIG. 8 a section along line A-A in FIG. 7 ;
  • FIG. 9 a section along line B-B in FIG. 7 ;
  • FIG. 10 an enlarged depiction of a section to be bent in the roller upset bending process using an apparatus according to FIGS. 7 through 9 ;
  • FIG. 11 a section through the roll bending zone of the structural section with the four rollers resting against it;
  • FIG. 12 a schematic depiction of the processes during the forming operations, shown in a sectional view.
  • a symmetrical hollow section (referred to as structural section 1 ) is formed into a curved structural section by means of a symmetrical forming and bending.
  • additional support rollers 5 , 6 according to FIG. 3 are disposed at the incoming side of the structural section 1 .
  • FIG. 1 An important aspect in the comparison of FIG. 1 to FIG. 3 is that a forming roller 4 rests against the outside of the bend (outer front wall), while a central roller 3 rests against the inside of the bend (inner front wall).
  • the two rollers are either both driven rotationally or only one of them is driven rotationally.
  • a mandrel rod 7 Extending inside the interior of the hollow section is a mandrel rod 7 , at the front end of which a mandrel shank 8 is disposed, which has corresponding support elements 9 , 10 .
  • These support elements 9 , 10 are highly wear-resistant support members that come to rest against the interior of the structural section 1 in the region of the bending zone.
  • the bending zone in this case, is created by the arrangement of the central rollers 3 and 4 across from each other.
  • the structural section may also be pushed through the bending zone in the direction of the arrow 2 by means of a sliding device that is not shown in detail.
  • FIG. 1 shows that the forming roller 4 rests against the outside 53 of the bend, whereas the central roller rests against the inside 52 of the bend. In this manner it is achieved, for example, that the inside of the bend is bent with a bending radius 15 , while the outside 53 of the bend is bent with a bending radius 14 .
  • a bending roller 11 is disposed at the outside 53 of the bend at an axial distance from the bending zone, said bending roller 11 being shiftable as illustrated into the position 11 ′ in order to thus act with an advancable force upon the outside 53 of the bend of the structural section to be bent.
  • the bending roller 11 acts against the resistance of the support rollers 5 , 6 , especially that of the support roller 6 , whereas the support roller 5 has only guiding functions.
  • an upper oscillating forming roller 12 to rest against the upper side wall 50 in a forming manner, while a lower oscillating forming roller 13 is in forming contact with the lower side wall 51 .
  • the arrangement of the upper and lower oscillating forming rollers 12 , 13 is also shown schematically in FIG. 1 .
  • the penetration depth is maximal at the outside 53 of the bend, whereas it tapers off toward 0 at the inside 52 of the bend.
  • the upper oscillating forming roller 12 is thus swiveled in a clockwise direction according to the direction of the arrow 18 against the upper side wall 50
  • the lower oscillating forming roller 13 is swiveled in a counter-clockwise direction (direction of the arrow 19 ) against the corresponding side wall 51 .
  • FIG. 2 now shows that when the structural section is formed under removal of the corresponding guide means, a structural section 1 turns into the undesirably deformed structural section 1 ′, which experiences, on the outside 53 of the bend, a corresponding denting with a corresponding shortening of the width dimensions, while a thinning of the material occurs at the same time.
  • a thickening of the cross-section of the structural section takes place in the region of the central roller 3 at the inside of the bend, whereas in the region of the outside of the bend a thinning of the structural section takes place.
  • the material is distributed conically.
  • FIG. 5 shows the forming of the structural section in an enlarged scale in the case of the gravity bending process.
  • the respective rollers 3 , 4 , 12 , 13 are shown only schematically in this case, and only in the region of their roller surfaces in their action upon the respective outsides of the structural section 1 being formed.
  • the translation of the drawing FIG. 5 to drawing FIG. 1 means that the section is bend upward, quasi out from the drawing plane of FIG. 5 , into the direction of the arrow 26 .
  • the forming roller 4 is moved in the direction of the arrow 46 (advancing direction) into the extrados 29 .
  • the neutral axis 54 extends through the zero-line 30 .
  • the previous, unformed extrados 29 is transformed into the formed extrados 29 ′.
  • the material thinning 43 results from the difference between the unformed extrados 29 and the post-bending extrados 29 ′. The stretching forces that are created during the forming process lead to said material thinning 43 .
  • a conical material thinning 31 results, which is depicted as thin, wedge-shaped areas 31 that extend perpendicularly from the vertical material thinning 43 at the outside of the bend toward the inside of the bend.
  • the roller surface 25 of the respective oscillating forming roller 12 , 13 is slanted in such a way that the roller surface portion 25 a rises conically, starting from the bending line 30 to the extrados 29 . This achieves a maximum penetration depth of the oscillating forming roller 12 , 13 acting in the extrados. This penetration depth enhances the lengthening of the bend, i.e., the increase in length on the outside 53 of the bend.
  • the roller surface 25 b of the respective oscillating forming roller 12 , 13 is designed exactly cylindrical. This has the result that the material increase 32 occurring in the side wall region 50 , 51 , is deflected in conical form in the direction of the arrow 33 into the intrados 28 . This is the result of the given oscillating forming rollers 12 , 13 , being positioned symmetrically and not inclined against the respective side wall 50 , 51 , causing the material increase 32 to be displaced in the direction of the arrow 33 into the intrados 28 where it assumes the later intrados shape 28 ′.
  • the central roller 3 has a shaping character only in such a way that the shape of the inside 52 of the bend is supported correspondingly.
  • the material increase 44 that is produced in the process results from the volume shift from the two wedges of the material increase 32 created in the side wall.
  • Reference numeral 35 marks the lateral demarcation of the roller surface 35 of the oscillating forming roller, which is displaced by the movement of the forming roller to the roller surface 35 ′.
  • FIG. 6 describes a setup for the roll-out forming process.
  • the bending line now shifts from the center of gravity in the center axis 23 toward the bending line 30 onto the intrados 28 .
  • the central roller 4 is moved in the direction of the arrow 36 (advancing direction) against the extrados 29 , which results in a material thinning 43 and this material thinning 43 is converted into an increase in length on the extrados 29 .
  • the material thinning 43 in the region of the side walls is converted into a material thinning 31 that extends in a wedge shape, said material thinning tapering off toward 0 toward the inside of the bend at the intrados 28 .
  • the bending line 30 is located on the inside of the bend of the intrados 28 .
  • the surface pressure of the forming roller 4 onto the extrados 29 is approximately 3 times greater than, by comparison, the surface pressure of the central roller 3 that rests against the intrados 28 . This results in a penetration depth of e.g., 4 mm in the region of the extrados 29 and a penetration depth of 1.3 mm in the region of the intrados 28 for the respective rollers 4 , 3 .
  • the example embodiment according to FIG. 6 is thus characterized in that that the upper oscillating forming roller 12 is positioned conically inclined relative to the lower oscillating forming roller 13 , so that a greater penetration depth of these two oscillating forming rollers 12 , 14 occurs at the extrados 29 than, by comparison, at the intrados 28 .
  • the penetration depth is 0 at the point where the bending line 30 extends.
  • the entire bending action takes place in the neutral axis 54 .
  • the force of action of the forming roller 4 is accordingly transferred to the central roller via the structural section and via the mandrel shank 8 that is held in the interior of the structural section.
  • the oscillating forming rollers 12 , 13 are likewise positioned against the corresponding side walls 50 , 51 of the structural section with an adjustable positioning force, said positioning force being in the range of 100 kN.
  • the positioning force of the forming roller 4 onto the extrados 29 could be in the range of 400 kN, whereas the central roller 3 experiences only a reaction force.
  • the central roller in this case, absorbs altogether 800 kN.
  • FIG. 7 shows a second example embodiment of a roller bending machine incorporating oscillating forming rollers, which describes the roller upset bending process.
  • FIG. 7 additionally shows that a link chain 39 , which links individual roller elements 40 in an articulated manner, is disposed at the free frontal end of the mandrel shank 8 .
  • roller elements 40 are arranged in the region of the neutral axis 54 and behind the neutral axis 54 in the discharge direction, in order to additionally support the interior cross section of the structural section 1 ′.
  • a strong upsetting force is caused by the fact that that the structural section is pushed into the bending zone in the direction of the arrow 2 , and the speed at which the central roller 3 and the forming roller 4 drive the structural section 1 is less than the thrust speed in the direction of the arrow 2 .
  • the brake shoe 37 rests against the outside 53 of the bend, whereas the brake shoe 38 rests against the inside 52 of the bend.
  • FIG. 8 additionally shows that not only the oscillating forming rollers 12 , 13 are designed swiveling, but that it is additionally possible to design the central roller 3 and forming roller 4 swiveling as well. These rollers 3 , 4 are designed swiveling in those cases when not only a two-dimensional bending of the structural section 1 is required, but when this structural section is to be bent in a spiral shape. This is symbolized by the directions of the arrows in FIG. 8 .
  • FIG. 9 shows a section in the direction of the line B-B in FIG. 7 , where it is apparent that the brake shoe rests against the inside 52 of the bend in a friction-increasing manner, and achieves a strong upsetting effect in the process.
  • Characterizing for this example embodiment is that the bending line 30 has now been moved onto the extrados 29 .
  • the bending line 30 in this context is understood to mean that no force acts upon the structural section 1 in this region. It is therefore a neutral line.
  • the oscillating forming rollers 12 , 13 have a straight cylindrical roller surface and they are oriented plane-parallel to the original unformed structural section 1 .
  • the previous unformed intrados 28 moves radially outward toward the intrados 28 ′, as shown in FIG. 10 .
  • this volume corresponds exactly to the volume of the material increase 32 ′ in the region of the intrados 28 ′.
  • the roller surface 57 of the central roller has a forming character, only with respect to forming the enlarged intrados 28 ′′.
  • the material increase 48 , 32 ′ on the intrados 28 does not interfere with the use of a structural section of this type.
  • the layout of a bend is generally always measured starting from a bending line 30 , which, in the depicted example embodiment, is located on the outside 29 of the bend.
  • a material roll-down effect does not occur at the outside of the bend (extrados 29 ) and the material displacement phenomena are displaced over the side walls 15 , 51 into the intrados 28 .
  • a roller upset bending of this type is used when the structural requirements of the bent structural section make it necessary for the wall thickness of the extrados 29 and wall thickness of the side walls 50 , 51 to remain the same also after the forming process.
  • the enlargement of the wall thickness in the region of the intrados 28 is harmless in this case and increases the resistance moment of the curved structural section.
  • FIGS. 11 and 12 show an example embodiment of the roll-out bending with volume shift based on the example of a square hollow section 200 ⁇ 200 ⁇ 20 mm:
  • the bending line is located at the intrados, i.e., the length layout does not change.
  • the side walls are rolled out conically in a symmetrical fashion from 4 mm at the outside toward 0 at the inside.
  • the penetration depth is marked with 60 and the roll-out depth with 61 .
  • the amount of penetration depth that is present at the incoming side is marked with 60
  • the amount (with opposite operational sign) at the discharge end is marked with 60 ′.
  • the shift of the gravity line 58 to the further inwardly situated gravity line 58 ′ takes place in the form of a small step 59 in the roll bending zone.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Metal Rolling (AREA)
  • Rolls And Other Rotary Bodies (AREA)
US10/587,031 2004-01-24 2005-01-11 Bending Device Comprising Compensator Rollers Abandoned US20080257004A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102004003681.0 2004-01-24
DE102004003681A DE102004003681A1 (de) 2004-01-24 2004-01-24 Biegevorrichtung mit Pendelwalzrollen
PCT/EP2005/000161 WO2005070580A1 (de) 2004-01-24 2005-01-11 Biegevorrichtung mit pendelwalzrollen

Publications (1)

Publication Number Publication Date
US20080257004A1 true US20080257004A1 (en) 2008-10-23

Family

ID=34745077

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/587,031 Abandoned US20080257004A1 (en) 2004-01-24 2005-01-11 Bending Device Comprising Compensator Rollers

Country Status (10)

Country Link
US (1) US20080257004A1 (zh)
EP (1) EP1706227A1 (zh)
JP (1) JP2007518570A (zh)
KR (1) KR20060126791A (zh)
CN (1) CN1909990A (zh)
CA (1) CA2553737A1 (zh)
DE (1) DE102004003681A1 (zh)
MX (1) MXPA06008167A (zh)
RU (1) RU2349405C2 (zh)
WO (1) WO2005070580A1 (zh)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120132036A1 (en) * 2008-05-05 2012-05-31 Eveready Battery Company Inc. Razor Blade and Method of Manufacture
US20130059167A1 (en) * 2009-08-25 2013-03-07 Sumitomo Pipe & Tube Co., Ltd. Bent member and an apparatus and method for its manufacture
US20130319602A1 (en) * 2012-05-31 2013-12-05 Kunststoff-Technik Scherer & Trier Gmbh & Co. Kg Method for roll-bending a profile, profile, method for manufacturing bent profile workpieces, bent profile workpiece, device for roll-bending a profile, and extrusion and roll-bending line

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE502006002139D1 (de) * 2006-10-06 2009-01-02 Klingelnberg Ag Vorrichtung zum maschinellen Fliessformbiegen von Profilen
EA017248B1 (ru) * 2007-04-04 2012-11-30 Сумитомо Метал Индастриз, Лтд. Способ производства гнутых изделий и устройство и линия для непрерывного производства гнутых изделий
DE102008006293A1 (de) * 2008-01-28 2009-07-30 Patentgesellschaft Maranatha Verfahren und Vorrichtung zum Biegen von Rundrohren und Profilen
DE102009025988A1 (de) * 2009-06-17 2010-12-30 Mewag Maschinenfabrik Ag Vorrichtung und Verfahren zum Freiformbiegen von Profilen
AT509197B1 (de) * 2010-03-10 2011-07-15 Hinterreither Ronald Tragprofil sowie verfahren zu seiner herstellung
DE102013103357B4 (de) * 2013-04-04 2015-02-05 Benteler Automobiltechnik Gmbh Vorrichtung und Verfahren zum Biegen eines metallischen Rohrs
JP2017060996A (ja) * 2015-09-24 2017-03-30 アイシン軽金属株式会社 ロール曲げ装置及びそれを用いた曲げ加工方法
DE102016013672A1 (de) 2016-11-10 2018-05-17 Technische Universität Dortmund Vorrichtung und Verfahren zum ebenen oder räumlichen Biegen von Profilen durch einen Walzvorgang
DE102016224837A1 (de) * 2016-12-13 2018-06-14 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Verfahren zur Biegeumformung von Strangprofilen
CN106680098A (zh) * 2017-02-10 2017-05-17 西南交通大学 一种测试防水涂料拉伸性能的试验装置及测试方法
FR3073780B1 (fr) * 2017-11-20 2019-11-29 Sogefi Suspensions Barre stabilisatrice pour vehicule et son procede de fabrication

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5253501A (en) * 1987-04-01 1993-10-19 Spath Walter E Mechanism and method for bending sheet metal
US6189354B1 (en) * 1997-04-25 2001-02-20 Suban Ag Method and modular-multistation device for folding profiles
US20040244453A1 (en) * 2001-05-21 2004-12-09 Peter Schule Device and method for bending profiles

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB624169A (en) * 1944-11-21 1949-05-30 Sncase Improvements in machines for bending angle and other metal rods, bars or the like
DE19956796A1 (de) * 1999-11-25 2001-06-13 Palima W Ludwig & Co Biegevorrichtung für das 2- und 3-dimensionale Profilbiegen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5253501A (en) * 1987-04-01 1993-10-19 Spath Walter E Mechanism and method for bending sheet metal
US6189354B1 (en) * 1997-04-25 2001-02-20 Suban Ag Method and modular-multistation device for folding profiles
US20040244453A1 (en) * 2001-05-21 2004-12-09 Peter Schule Device and method for bending profiles

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120132036A1 (en) * 2008-05-05 2012-05-31 Eveready Battery Company Inc. Razor Blade and Method of Manufacture
US10413962B2 (en) 2008-05-05 2019-09-17 Edgewell Personal Care Brands, Llc Method of making a bent razor blade
US20130059167A1 (en) * 2009-08-25 2013-03-07 Sumitomo Pipe & Tube Co., Ltd. Bent member and an apparatus and method for its manufacture
US8776568B2 (en) * 2009-08-25 2014-07-15 Nippon Steel & Sumitomo Metal Corporation Bent member and an apparatus and method for its manufacture
US20130319602A1 (en) * 2012-05-31 2013-12-05 Kunststoff-Technik Scherer & Trier Gmbh & Co. Kg Method for roll-bending a profile, profile, method for manufacturing bent profile workpieces, bent profile workpiece, device for roll-bending a profile, and extrusion and roll-bending line
US9643371B2 (en) * 2012-05-31 2017-05-09 Samvardhana Motherson Innovative Autosystems B.V. & KG Method for roll-bending a profile, profile, method for manufacturing bent profile workpieces, bent profile workpiece, device for roll-bending a profile, and extrusion and roll-bending line

Also Published As

Publication number Publication date
KR20060126791A (ko) 2006-12-08
EP1706227A1 (de) 2006-10-04
JP2007518570A (ja) 2007-07-12
CN1909990A (zh) 2007-02-07
WO2005070580A1 (de) 2005-08-04
RU2006130468A (ru) 2008-02-27
CA2553737A1 (en) 2005-08-04
MXPA06008167A (es) 2007-01-30
DE102004003681A1 (de) 2005-08-11
RU2349405C2 (ru) 2009-03-20

Similar Documents

Publication Publication Date Title
US20080257004A1 (en) Bending Device Comprising Compensator Rollers
US4033165A (en) Apparatus for controlling flatness of metal sheet during rolling
JPH0669578B2 (ja) 圧延機
EP1967299A1 (en) Extrusion-molded hollow material, and apparatus and method for molding same
JPH06106244A (ja) Ｈ形の異形梁材をくせ取りする方法および装置
IE56027B1 (en) Apparatus for flanging ventilation duct walls
US5245849A (en) Apparatus for forming a pipe from a sheet metal plate
EP1908536B1 (de) Vorrichtung zum maschinellen Fliessformbiegen von Profilen
DE19839614B4 (de) Metallbandbiegerollverfahren zur Herstellung eines elektrisch zu schweißenden Rohres aus einem flachen Metallband
JPH0342122B2 (zh)
US3402586A (en) Method of machining metal parts
KR950003539B1 (ko) H형강의 로울러 교정장치
JP4811031B2 (ja) 形鋼のユニバーサル圧延方法
JP4906986B2 (ja) ロール成形方法
JP2000140947A (ja) ベンディングロールによるパイプ成形方法及びパイプ
RU206957U1 (ru) Трубогиб
JP3202478B2 (ja) 圧延機及び圧延方法
AU634220B2 (en) Apparatus for forming a pipe from a sheet metal plate
RU2344888C1 (ru) Способ прокатки листовой стали
JPS6364243B2 (zh)
JP2001137957A (ja) 押し通し式曲げ加工装置
RU2201825C2 (ru) Универсальная четырехвалковая клеть для профилирования труб
JP2663806B2 (ja) Ｈ形鋼圧延用エッジャーミルとその圧延方法
JP2982639B2 (ja) Ｈ形鋼のローラ矯正方法及びその装置
JP4576724B2 (ja) 熱延用圧延ロールおよび熱間仕上げ圧延機列

Legal Events

Date Code Title Description
AS Assignment

Owner name: KLINGENLNBERG AG, SWITZERLAND

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SPAETH, WALTER;REEL/FRAME:021493/0560

Effective date: 20060902

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION