EP3068558A1 - Method for producing a steel section, in particular a steel girder - Google Patents
Method for producing a steel section, in particular a steel girderInfo
- Publication number
- EP3068558A1 EP3068558A1 EP14796081.9A EP14796081A EP3068558A1 EP 3068558 A1 EP3068558 A1 EP 3068558A1 EP 14796081 A EP14796081 A EP 14796081A EP 3068558 A1 EP3068558 A1 EP 3068558A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- steel
- wall portion
- metal workpiece
- bending
- recess
- 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.)
- Granted
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 108
- 239000010959 steel Substances 0.000 title claims abstract description 108
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 23
- 238000005452 bending Methods 0.000 claims abstract description 55
- 239000002184 metal Substances 0.000 claims abstract description 52
- 238000000034 method Methods 0.000 claims abstract description 30
- 230000003313 weakening effect Effects 0.000 claims description 21
- 238000003801 milling Methods 0.000 claims description 12
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000003466 welding Methods 0.000 description 36
- 210000002414 leg Anatomy 0.000 description 13
- 239000000463 material Substances 0.000 description 10
- 230000007704 transition Effects 0.000 description 6
- 238000013461 design Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 4
- 210000001503 joint Anatomy 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- GNFTZDOKVXKIBK-UHFFFAOYSA-N 3-(2-methoxyethoxy)benzohydrazide Chemical compound COCCOC1=CC=CC(C(=O)NN)=C1 GNFTZDOKVXKIBK-UHFFFAOYSA-N 0.000 description 1
- FGUUSXIOTUKUDN-IBGZPJMESA-N C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 Chemical compound C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 FGUUSXIOTUKUDN-IBGZPJMESA-N 0.000 description 1
- 241000272201 Columbiformes Species 0.000 description 1
- 206010020675 Hypermetropia Diseases 0.000 description 1
- YTAHJIFKAKIKAV-XNMGPUDCSA-N [(1R)-3-morpholin-4-yl-1-phenylpropyl] N-[(3S)-2-oxo-5-phenyl-1,3-dihydro-1,4-benzodiazepin-3-yl]carbamate Chemical compound O=C1[C@H](N=C(C2=C(N1)C=CC=C2)C1=CC=CC=C1)NC(O[C@H](CCN1CCOCC1)C1=CC=CC=C1)=O YTAHJIFKAKIKAV-XNMGPUDCSA-N 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000003414 extremity Anatomy 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000003698 laser cutting Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- 210000000689 upper leg Anatomy 0.000 description 1
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
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/03—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of sheet metal otherwise than by folding
- B21D39/037—Interlocking butt joints
-
- 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
- B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
- B21D11/10—Bending specially adapted to produce specific articles, e.g. leaf springs
-
- 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
- B21D51/00—Making hollow objects
- B21D51/16—Making hollow objects characterised by the use of the objects
- B21D51/52—Making hollow objects characterised by the use of the objects boxes, cigarette cases, or the like
Definitions
- the invention is in the field of steel processing and steel production, in particular the production of steel beams.
- the invention relates to a method for producing a steel profile, comprising the steps of providing a metal workpiece, in particular a strip steel workpiece, which preferably has a thickness of at least 5 mm, forming a weakening in the region of an intended bend of the metal part. Workpiece and bending the metal workpiece to create a bend on the metal workpiece.
- the invention further relates to a steel profile.
- the invention is based on the finding that the known methods for producing steel profiles, in particular steel beams, have several disadvantages.
- the known processes for the production of steel profiles are energy-intensive, labor-intensive and involve high set-up or start-up costs. This results in high minimum order quantities and comparatively long delivery times, so that a far-sighted production planning and a high inventory level are necessary in order to be able to react flexibly to customer orders.
- An advantage of the method according to the invention is that an autonomous, flexible and fully automatic production of steel profiles, preferably directly from a coil or a strip steel roll or starting from flat steel workpieces, is made possible.
- production costs are kept low due to comparatively low set-up costs, low labor costs and low material losses.
- the needs-based and timely production achieved by using the method also allows low storage costs.
- the process works energy-efficient, clean and environmentally friendly. Energy is saved especially when processing thick-walled steel.
- Another significant advantage of the invention is that steel profiles, especially steel beams can be produced with high precision.
- the formation of the weakening leads to the fact that the behavior of the workpiece during bending is predictable.
- a closed steel profile is preferably created, which can be used as a steel beam.
- the present invention further encompasses the recognition that the steel beams of the present invention, which are preferably designed as hollow steel profiles, offer the correct cross-section for every load case.
- the steel carrier according to the invention which is preferably designed as a hollow steel profile
- the requirements customary in the industry in particular those made in the English terms "made to measure (load)” and “mass customization "(in German: Customized mass production) known requirements are met.
- the present invention encompasses the recognition that the steel beams preferably designed as hollow steel profiles according to the invention, in particular the substantially square hollow steel profiles, give the architect more freedom in design due to their tight outer radii, since, for example, profiles lying flush against each other only provide relatively narrow joints exhibit.
- the present invention also encompasses the recognition that the sharp-edged inner edges of a steel carrier, which is preferably designed as a hollow steel profile and more preferably as a square hollow steel profile, make it possible to produce accurately fitting inserts, for example connecting elements, with relatively little effort.
- the metal workpiece is preferably formed by a band steel workpiece.
- the weakening of the workpiece runs along an intended bend of the workpiece. More preferably, the weakening is formed by forming a recess in the workpiece. This represents a particularly expedient and simple variant for forming a weakening in the region of an intended bend of the workpiece.
- the term notch is to be understood in the context of the present invention as a recess which is formed in the workpiece in such a way that it forms an open end , in particular directed to a bending inside, has.
- the weakening after bending is enhanced by welding, in particular laser welding, preferably by a laser hybrid welding method.
- welding is used to completely close a partially closed recess during bending.
- abutting ends of the recess of the workpiece can be permanently connected by welding.
- laser welding is to be understood in the context of the present invention, the permanent connection of two ends of a steel profile using an optically focused laser beam with high intensity.
- the welding is effected by means of a focused laser beam, which is directed from the outside of the bending of the workpiece to the bending inside, in particular along a zero gap formed by the recess after bending, the focus is preferably within the workpiece.
- the term zero gap is to be understood in the context of the present invention such that the legs of the recess after bending against each other, for. B. have contact without forming a chemical compound. Basically, in a single bend of the workpiece welding from the bending outside of the workpiece to Bend inside as well as from the bending inside to the bending outside possible regardless of the bending angle.
- some bends can not be welded starting from the bend inside, since individual inner bends or zero gaps are concealed by adjacent strips of the workpiece and thus are not accessible to a laser beam.
- welding can be carried out particularly easily by means of a laser beam, which is directed from the bending outside to the bending inside.
- a single focused laser beam is used instead of an oscillating beam or two partial laser beams.
- a recess forming the weakening is provided in the workpiece, wherein the recess formed on a bending inner side of the workpiece is closed after being bent by welding, in particular laser welding.
- a method is specified, with which a recess, which is first reduced in bending, is closed by welding to reinforce the steel profile. Even more preferably, limbs which delimit a recess forming the weakening are permanently connected. Thus, an intended for bending weakening is additionally reinforced after bending.
- the bending is done by free bending, swivel bending or Gesenkbiegen.
- the provision of the workpiece takes place by unrolling a strip steel roll, in particular a coil.
- the term coil is to be understood in the context of the present invention, a wound metal strip, for example in the form of a strip steel roll.
- a recess is introduced before bending, which is aligned transversely to the longitudinal direction of the strip blank and is open to a lateral boundary of the strip blank.
- the recess may for example be formed as a slot-like recess, which is introduced laterally into the band steel blank, for example by means of a punching tool, a high-energy laser beam or a steel saw.
- the longitudinal direction of the strip steel blank is preferably the direction in which the strip steel blank moves during the production process, for example on a conveyor belt or a roller conveyor. This may in particular also be the direction in which a strip steel unwound from a strip steel roll is fed to the assembly line.
- the recesses make it possible to carry out work steps in the production process in a first region of the strip steel blank without this having any influence to a second region of the strip blank, which is separated from the first region by the recess. More preferably, the recess protrudes into the band steel blank in such a way that a bending moment in a first region of the band steel blank, which delimits a first section of the recess, does not transfer to a second region of the band steel blank which delimits a second section of the recess. This achieves a considerable simplification of the production process of a steel profile when using strip steel blanks.
- the bends made in accordance with the method of the present invention can be made without the need to completely separate individual sections of the strip blank prior to bending.
- the recesses are each introduced with a predetermined depth in the strip blank so that a bending moment in a first region of the strip blank does not transfer to a second region of the strip blank, but the two areas still remain connected in a predetermined portion of the strip blank.
- the first region of the strip steel blank is located, for example, in a bending device, so that the workpiece can be bent therein.
- the recess serves in this case to the fact that the bend does not transfer to a second region of the strip steel blank, which is for example still in the attenuation device.
- the weakening in particular of a recess forming the weakening, is formed by milling.
- a recess forming the weakening has a W-shaped region before bending.
- the W-shaped region is formed in a central region of the recess, viewed in a longitudinal direction of the workpiece.
- Two inner legs of the W-shaped region are preferably aligned at an angle of approximately 90 ° to each other.
- An embodiment of the recess with a W-shaped area is particularly advantageous for the formation of the recess by milling, since Disadvantages that occur when milling a V-shaped recess overcome.
- a first tapered region adjoins the ends of the W-shaped region.
- two legs of the tapered portion are preferably aligned at an angle of about 50 ° to 1 10 °, in particular about 90 ° to each other.
- the first bevelled area transitions into a second bevelled area, which preferably has a larger opening angle than the first bevelled area.
- a second bevelled area which preferably has a larger opening angle than the first bevelled area.
- two legs of the second tapered portion form the opening angle. Therefore, the two legs of the second tapered portion are aligned at an angle to each other which is greater than the angle between the two legs of the first tapered portion, in particular greater than 90 °, more preferably about 122 °.
- the term "transition into” is to be understood as a direct or indirect transition
- the first bevelled region is indirectly transferred, in particular by means of a step, into the second beveled region
- the penetration depth can advantageously also be influenced by the deflection of 90 ° Laser beam source - the penetration depth or component thickness in the edges can be defined via the U-shaped gap
- the U-shaped gap can also be used as weld preparation for another weld, for example MIG (metal inert gas welding), MAG (metal active gas welding), MSG (Metal inert gas welding) or laser hybrid welding, serve the a is executed from the inside.
- a curved recessed portion connects to the ends of the W-shaped region of the recess or to the ends of the first bevelled region of the recess.
- the two curved recessed sections together form a U-shaped gap on a bending inside of the workpiece, which serves as corrosion protection.
- the curved recessed portions extend from the ends of the W-shaped portion or from the ends Ends of the legs of the tapered portion of the recess initially with a large curvature, which gradually decreases toward the end of the recess portion.
- the steps b) and c) are carried out twice or four times in order to provide a triangular or quadrangular support structure by step c).
- the metal workpiece in a state after forming the weakening and before bending, has a weakening recess having a W-shaped portion.
- a first bevelled area adjoins the ends of the W-shaped region of the recess.
- the first bevelled area transitions into a second bevelled area, which preferably has a larger opening angle than the first bevelled area.
- a further preferred embodiment of the steel profile comprises a first wall section, a second wall section which extends from a first end of the first wall section and is oriented at an angle in the range of 30 ° to 150 ° to the first wall section, and a third wall section, which extends from a second end of the first wall portion and is oriented at an angle in the range of 30 ° to 150 ° to the first wall portion, wherein one end of the first wall portion and one end of the second wall portion for connection abut each other.
- a cross-section substantially triangular steel beam is preferably achieved.
- the angle between the first and second wall portion and the angle between the first and third wall portion is about 60 °, in particular in a cross-sectionally equilateral triangular design.
- Another preferred embodiment of the steel profile comprises first, second and third wall sections, the second and third wall sections each extending from the first wall section and oriented at an angle of approximately 90 ° to the first wall section, a first connection section extends from the second wall portion and is oriented at an angle of about 90 ° to the second wall portion, and a second connecting portion which extends from the third wall portion and is oriented at an angle of about 90 ° to the third wall portion, wherein one end of the first connection portion and one end of the second connection portion abut each other for connection.
- the two connecting portions form a fourth wall of the steel profile, which is aligned at an angle of approximately 90 ° to the second and third wall section.
- the steel profile seen in cross-section is preferably closed, rectangular. More preferably, the abutting ends of the second Vietnamesesab- section are joined together by welding.
- the end of the first connecting portion has at least one groove, wherein the end of the second connecting portion has at least one spring which is formed corresponding to the groove.
- the tongue and groove connection is formed along the longitudinal extent of the steel profile. More preferably, the ends of the connecting portions are connected to each other after bending the metal workpiece by welding.
- the first and second connecting portions are connected to each other by means of at least one dovetail joint.
- a substantially approximately dovetail-shaped spring of the first connection section preferably engages in a corresponding recess of the second connection section.
- a dovetail joint or else a pigeon tail connection is preferably cut by means of laser beams, while a tongue and groove joint is preferably milled.
- FIG. 1 shows an intermediate state of a metal workpiece for a first embodiment of a steel profile according to the invention in a side view
- FIG. 2 shows the metal workpiece shown in Fig. 1 in a plan view
- FIG. 3 shows the metal workpiece shown in Figures 1 and 2 in a perspective view
- Fig. 4 shows the first embodiment of a steel profile according to the invention in one
- FIG. 5 shows the steel profile shown in Fig. 4 in a plan view
- FIG. 7 shows a section of the metal workpiece according to the first exemplary embodiment of a steel profile according to the invention in a side view
- FIG. 8 shows the section of the metal workpiece shown in FIG. 7 in a plan view
- FIG. 10 shows an intermediate state of a metal workpiece for a second embodiment of a steel profile according to the invention in a side view, 1 1, the metal workpiece shown in Fig. 10 in a plan view,
- FIG. 12 is a perspective view of the metal workpiece shown in FIGS. 10 and 11; FIG.
- FIG. 16 shows a section of the metal workpiece according to the second exemplary embodiment of the steel profile according to the invention in a side view
- FIG. 17 shows the section of the metal workpiece shown in FIG. 16 in a plan view
- FIG. 30 shows page 2 of the booklet issued by "Steeltube Institute of North America” under the title “Hollow Structural Sections, Column Load Tables” in July 1997.
- FIGS. 1 to 18 are not true to scale illustrations.
- the depth of the steel profile 10 shown in FIGS. 4-6 and FIGS. 13-15 in the direction 20 of a bending edge 30 is not true to scale.
- the steel profile, in particular for use as a steel beam be formed deeper than shown.
- Figures 1, 2 and 3 respectively show, in a side view, plan view and perspective view, a metal workpiece in an intermediate state after being provided in a first process step A in the form of a strip steel workpiece having a thickness of at least 5 mm and after In a second method step B, recesses 3, 5, 7 and 9 have been formed by milling in the region of an intended bend of the metal workpiece 1.
- the metal workpiece 1 has a first wall section 11, a second wall section 13 and a third wall section 15.
- the second and third wall sections 13 and 15 extend from the first wall section 11 and are aligned at an angle of 90 ° to the first wall section 11.
- the metal workpiece 1 also has a first connecting portion 17, which extends from the second wall portion 13 and is aligned at an angle of 90 ° to the second wall portion 13.
- the metal workpiece 1 has a second connecting section 19, which extends from the third wall section 15 and is oriented at an angle of approximately 90 ° to the third wall section 15.
- the ends of the first connection portion 17 and the second connection portion 19 abut each other for connection.
- the second connecting portion 19, a spring 21 which is dovetail-shaped.
- the first connecting portion 17 has a groove 23 corresponding to the spring.
- FIGS. 7, 8 and 9 show a section of a metal workpiece 1 in an intermediate state, in which the recess 9 is shown before bending, while the spring 21 and the groove 23 engage in one another.
- Figs. 7, 8 and 9 serve to illustrate preferred angular dimensions of the metal workpiece.
- the spring 21 and groove 23 engage each other only when the metal workpiece 1 is bent in the region of the recesses 3 and 9.
- the recess 9 is mirror-symmetrical to an axis 12.
- the recess 9 has a mirror-symmetrical to the axis 12 arranged W-shaped portion 31 and a first tapered portion 33.
- the first tapered region 33 merges via a step 34 into a second tapered region 35.
- the W-shaped portion 31 and the first tapered portion 33 each form a zero gap.
- the second tapered portion 35 forms a U-shaped groove after bending.
- Two legs 37 forming the first bevelled area 33 are aligned at an angle of approximately 90 ° to each other before bending C.
- Two legs 39 forming the second tapered region 35 are aligned at an angle of approximately 122 ° to each other before bending.
- the spring 21 and groove 23 are formed substantially corresponding to each other.
- the spring 21 and groove 23 lie substantially in positive engagement with one another.
- the groove 23 is chamfered, so that in a transition region between the spring 21 and groove 23, a channel 55 is formed.
- the channel 55 is preferably used on the one hand as a clearance over which the opposite leg is restricted, and on the other hand preferably as a weld preparation for the following welding or butt joint with additional material, preferably for example by means of a laser hybrid welding process.
- the intermediate states of a metal workpiece 61 shown in FIGS. 10 to 18 are substantially similar to the intermediate states shown in FIGS. 1 to 9. The same and functionally identical elements are provided with the same reference numerals.
- Figs. 10 to 18 show a recess 63 with a W-shaped portion 65 and a tapered portion 67.
- the tapered portion closes each outside lying end of the W-shaped portion 65 at.
- the tapered portion 67 does not transition into a further tapered, but connects directly to a Wandungsinnenseite 69 of the metal workpiece 61 at.
- Two inner legs of the W-shaped portion 65 are aligned at an angle of about 90 ° to each other prior to bending of the metal workpiece 61.
- Two legs of the tapered portion 67 are aligned at an angle of about 90 ° to each other prior to bending of the metal workpiece 61.
- FIGS. 19 to 28 show further embodiments of the invention.
- the same or functionally identical parts or sections are denoted by the same reference numerals.
- Fig. 19a shows a cross section of a board (10 mm thick) of a square steel hollow body, as produced by the method according to the invention.
- FIG. 19b shows an enlarged detail A of FIG. 19a.
- FIG. 19c shows an illustration of a workpiece folded on the basis of a blank according to FIGS. 19a and 19b according to the present invention.
- FIG. 20a shows a further variant of a cross-section of a board according to the invention (in this case 20 mm thick) of a square hollow steel body according to the invention.
- the board material shown in FIG. 20a is a stronger board material.
- 28.28 mm steel would have to be welded through at a unwinding of 90 degrees.
- the further embodiment of the board material according to the invention shown in FIG. 20a and also in the enlarged section A of FIG. 20b advantageously has a notch geometry according to the invention in order to overcome these disadvantages, which in comparison to the notch geometry illustrated in FIG.
- Figure 21 a shows an embodiment of a folded according to the invention profile with a board thickness of 10 mm, which profile is connected in the shock with a Puzzleverklinkung according to Figure 21d, which Verklinkung was designed for a laser hybrid butt welding / HV.
- a pure laser welding with I-seam shape would be possible here welding technology;
- the invention has recognized that for folding the Puzzleverklinkung according to Figure 19b and also Figure 19c, a phase is necessary. Without this phase, due to the recognition of the invention, the side parts can not be latched or swung in the last step, see also the "flower" described below
- the profile edges of this embodiment according to the invention are preferably welded through from outside with a laser beam welding.
- FIG. 22a shows another embodiment of a folded profile according to the invention with a board thickness of 10 mm, which profile was designed in the butt with a preparation for a butt joint in I-seam shape.
- the profile edges of this embodiment are preferably each welded through with a laser beam welding from the outside.
- FIGS. 22b and 22c of this embodiment See also the further views in FIGS. 22b and 22c of this embodiment.
- FIGS. 23a, 23b and 23c The illustrated in Figures 23a, 23b and 23c embodiment of a profile according to the invention with a board material thickness of 20 mm has been produced in the jolt with a puzzle Verklinkung for a laser hybrid butt welding / HV (half V-seam). It should be noted that both the present board thickness and the board thicknesses described above and below are only approximate millimeter indications to describe the conceptual orientation of the corresponding embodiment.
- the profile edges are preferably each welded through with a laser beam welding from the outside.
- FIGS. 24a, 24b and 24c show in various views an embodiment of a profile according to the invention with a board material thickness of approximately 20 mm, which profile was prepared in the butt for a laser hybrid butt weld / HV (half V seam).
- the particular notch geometry according to the invention which has again been described in detail above with reference to FIGS. 20a, 20b and 20c, with an additional taper, advantageously and according to the invention provides a weldable seam area in the corners.
- the profile edges of this embodiment of the invention are preferably each welded through with a laser beam welding from the outside.
- FIGS. 25a, 25b, 25c, 25d, 25e and 25f show embodiments according to the invention of design possibilities of folding according to the invention which are possible by the system according to the invention described in the present patent application.
- 25a shows an embodiment forming an angle
- FIG. 25b shows an embodiment forming a U-steel
- FIG. 25c shows an embodiment forming a rectangular hollow profile
- FIG. 25d shows an embodiment forming a triangular hollow profile
- Figure 25e is an embodiment forming a square hollow profile
- Figure 25f is a hexagonal hollow profile forming embodiment of the present invention.
- Figures 26a, 26b, 26c, 26d, 26e and 26f show the embodiments according to the invention of profiles according to the invention shown in Figures 25a, 25b, 25c, 25d, 25e and 25f respectively in a perspective view.
- FIGS 27a, 27b, 27c, 27d, 27e and 27f show in the above sequence an embodiment of a bending process according to the invention in the production of a substantially square hollow column
- step a shows the laser cutting
- step b the further transport to step c
- step c the edge milling
- step d the joint milling
- step e the joint milling
- Step f the joint milling
- step g the joint milling
- step h the further transport to step i, step i the folding / bending, step j the folding / bending, step k the folding / bending, step I the finish folding / finish bending
- step m laser beam welding step n laser beam welding
- step o the laser beam welding
- step p the laser beam welding
- step q the laser beam welding
- Figure 29 shows a study by the company "IWF Ingenieur remember Uwe fundamentalmann” on 26 August 2013, in which prior art profiles have been compared with embodiments of the invention with the aid of the finite element method of pages 1 to 16 of FIG. 29.
- a calculation of a square "HSS Column” according to the invention was compared with a commercially available product
- commercially available products are those such as those disclosed, for example, on page 2, shown in FIG. 30, of the "Steeltube Institute of North America” entitled “Hollow Structural Sections, Column Load Tables", July 1997 Brochure are shown.
- REFERENCE CHARACTERS REFERENCE CHARACTERS
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
- Rod-Shaped Construction Members (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201310222899 DE102013222899A1 (en) | 2013-11-11 | 2013-11-11 | Method for producing a steel profile, in particular a steel beam |
PCT/EP2014/074097 WO2015067780A1 (en) | 2013-11-11 | 2014-11-07 | Method for producing a steel section, in particular a steel girder |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3068558A1 true EP3068558A1 (en) | 2016-09-21 |
EP3068558B1 EP3068558B1 (en) | 2022-11-02 |
Family
ID=51871036
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14796081.9A Active EP3068558B1 (en) | 2013-11-11 | 2014-11-07 | Method for producing a steel section, in particular a steel girder |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3068558B1 (en) |
DE (1) | DE102013222899A1 (en) |
WO (1) | WO2015067780A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102019217509A1 (en) * | 2019-11-13 | 2021-05-20 | Thyssenkrupp Steel Europe Ag | Process for the production of a sheet metal profile which is closed at least in some areas from metal |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2982030B2 (en) * | 1991-09-26 | 1999-11-22 | 横河電機株式会社 | Case forming method and device |
JPH07100528A (en) * | 1993-10-05 | 1995-04-18 | Nisshin Steel Co Ltd | Production of special shaped tube excellent in shape property |
JP4040840B2 (en) * | 2000-02-04 | 2008-01-30 | 株式会社リコー | Pipe body forming method using sheet metal for pipe body |
DE102011100633A1 (en) | 2011-05-05 | 2012-11-08 | Pilepro Llc | Method for producing a steel profile |
-
2013
- 2013-11-11 DE DE201310222899 patent/DE102013222899A1/en active Pending
-
2014
- 2014-11-07 EP EP14796081.9A patent/EP3068558B1/en active Active
- 2014-11-07 WO PCT/EP2014/074097 patent/WO2015067780A1/en active Application Filing
Non-Patent Citations (2)
Title |
---|
None * |
See also references of WO2015067780A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE102013222899A1 (en) | 2015-05-13 |
EP3068558B1 (en) | 2022-11-02 |
WO2015067780A1 (en) | 2015-05-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2709778B1 (en) | Method and device for producing a steel profiled element and said type of steel profiled element | |
EP3221202B1 (en) | Longitudinal support and transverse support for a chassis frame of a rail vehicle | |
EP1479842A1 (en) | Hollow section | |
EP3362336B1 (en) | Arrangement for connecting two vehicle body components and method for producing a sheet metal component having a doubled joining flange | |
DE19622661A1 (en) | Process for manufacturing vehicle frame | |
DE102009004798A1 (en) | Sheet metal component with a laser-welding-compatible triangular corner, associated sheet metal blank and method for producing and optimizing the sheet metal blank | |
WO2012171875A1 (en) | Method for producing slit hollow profiles | |
DE102005046843B3 (en) | Device for manufacturing an installation-ready component has rolling path to reshape flat blank into rolled profile with a connecting station mounted where subsequently inaccessible area of profile is still accessible for modification | |
EP3068558B1 (en) | Method for producing a steel section, in particular a steel girder | |
DE102008016633A1 (en) | Supporting structure for use in rail vehicle, has two intersecting profile parts designed as Z-profile with bars and belts, where one belt is adapted to vertical elongation of slot, such that sliding seat is formed between profile parts | |
DE102015001151A1 (en) | Method for producing a welded joint | |
DE19753653B4 (en) | Sheet steel door | |
EP3030360A1 (en) | Steel profile, supporting profile and method for producing a steel profile | |
DE102018115166A1 (en) | Process for the production of motor vehicle drivers and motor vehicle drivers | |
EP2311611A2 (en) | Procedure and tool for producing cuts from sheet material | |
EP3227157B1 (en) | Chassis frame of a rail vehicle with a ttansverse beam | |
DE10204638B4 (en) | Method of making a sheet metal door leaf | |
DE102013226093B4 (en) | Deformation element | |
DE102010035617B4 (en) | Rung bag and method of making a pillbox | |
WO2005030562A1 (en) | Frame structure and method for producing the same | |
DE102008059152A1 (en) | Connecting nodes for commercial vehicle, have two pairs of walls aligned perpendicular to each other, where distance between parallel walls of one of pairs of walls exceeds distance between another parallel walls of other pair of walls | |
EP1127776A2 (en) | Arrangement of a carrying structure in the body of a motor vehicle | |
DE102018122877B4 (en) | Assembly with a first component and a second component connected thereto | |
EP1758707A1 (en) | Method for the production of a frame structure having at least two hollow profile elements | |
DE102021106434A1 (en) | Production line and process for the production of short tubes made of metallic material |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20160613 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
DAX | Request for extension of the european patent (deleted) | ||
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
17Q | First examination report despatched |
Effective date: 20180921 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: GRANT OF PATENT IS INTENDED |
|
INTG | Intention to grant announced |
Effective date: 20220513 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE PATENT HAS BEEN GRANTED |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP Ref country code: AT Ref legal event code: REF Ref document number: 1528384 Country of ref document: AT Kind code of ref document: T Effective date: 20221115 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 502014016428 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: LANGUAGE OF EP DOCUMENT: GERMAN |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: FP |
|
REG | Reference to a national code |
Ref country code: LT Ref legal event code: MG9D |
|
RAP4 | Party data changed (patent owner data changed or rights of a patent transferred) |
Owner name: ORIGAMI STEEL CORP. |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20221102 Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230302 Ref country code: NO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230202 Ref country code: LT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20221102 Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20221102 Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20221102 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: RS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20221102 Ref country code: PL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20221102 Ref country code: LV Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20221102 Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230302 Ref country code: HR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20221102 Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230203 |
|
P01 | Opt-out of the competence of the unified patent court (upc) registered |
Effective date: 20230524 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
REG | Reference to a national code |
Ref country code: BE Ref legal event code: MM Effective date: 20221130 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SM Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20221102 Ref country code: RO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20221102 Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20221130 Ref country code: EE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20221102 Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20221102 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20221130 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 502014016428 Country of ref document: DE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20221102 Ref country code: AL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20221102 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20230803 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20221107 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20221102 Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20221130 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 20231122 Year of fee payment: 10 Ref country code: LU Payment date: 20231120 Year of fee payment: 10 |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: MM01 Ref document number: 1528384 Country of ref document: AT Kind code of ref document: T Effective date: 20221107 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20231123 Year of fee payment: 10 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20221107 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20231123 Year of fee payment: 10 Ref country code: DE Payment date: 20231205 Year of fee payment: 10 Ref country code: CZ Payment date: 20231027 Year of fee payment: 10 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: HU Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO Effective date: 20141107 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CY Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20221102 |