EP0345241B1 - Verfahren zum Herstellen eines gewalzten Stahlprofils mit einem gewellten Teil und Einrichtung, bestimmt für dieses Verfahren - Google Patents
Verfahren zum Herstellen eines gewalzten Stahlprofils mit einem gewellten Teil und Einrichtung, bestimmt für dieses Verfahren Download PDFInfo
- Publication number
- EP0345241B1 EP0345241B1 EP89870077A EP89870077A EP0345241B1 EP 0345241 B1 EP0345241 B1 EP 0345241B1 EP 89870077 A EP89870077 A EP 89870077A EP 89870077 A EP89870077 A EP 89870077A EP 0345241 B1 EP0345241 B1 EP 0345241B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- section
- corrugated
- rollers
- folding
- shaping
- 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.)
- Expired - Lifetime
Links
- 238000009434 installation Methods 0.000 title claims description 12
- 238000004519 manufacturing process Methods 0.000 title description 12
- 238000005096 rolling process Methods 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 16
- 238000007493 shaping process Methods 0.000 claims description 9
- 230000004323 axial length Effects 0.000 claims 1
- 239000000463 material Substances 0.000 description 4
- 238000005482 strain hardening Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 241000287107 Passer Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229940082150 encore Drugs 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
- E04C3/06—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with substantially solid, i.e. unapertured, web
-
- 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
- B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
- B21D3/02—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts by rollers
- B21D3/05—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts by rollers arranged on axes rectangular to the path of the work
-
- 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
- B21D47/00—Making rigid structural elements or units, e.g. honeycomb structures
- B21D47/01—Making rigid structural elements or units, e.g. honeycomb structures beams or pillars
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
- E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
- E04C2003/0408—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by assembly or the cross-section
- E04C2003/0421—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by assembly or the cross-section comprising one single unitary part
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
- E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
- E04C2003/0426—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by material distribution in cross section
- E04C2003/0434—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by material distribution in cross section the open cross-section free of enclosed cavities
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
- E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
- E04C2003/0443—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by substantial shape of the cross-section
- E04C2003/0452—H- or I-shaped
Definitions
- the present invention relates to a process for the manufacture of laminated sections such as a U or a beam, more particularly an I-beam, comprising a corrugated part in particular a wing or a core.
- a beam is known by having a corrugated core welded to the flanges.
- a manufacturing process in which a planar core is welded to a pair of flanges and the beam thus formed passes between two cylinders stamping the soul of the beam in a desired manner.
- a beam of the aforementioned type is however subjected to significant internal stresses.
- the weld creates tensions in the beam which risk deforming it and / or warping the soles.
- the rolling of a part of the core implies an elongation thereof with the consequence of a reduction in its thickness.
- This also results in high tensions on the welds between the core and the soles and internal tensions in the core, given the differential deformations.
- These tensions also risk deforming the finished beam and / or warping it.
- these tensions can have an unfavorable influence on the behavior of the beam and in particular on its mechanical resistance to the various forces to which it may be subjected during its use.
- this process necessarily involves a weldable steel.
- Document LU-A-83 044 discloses a method of manufacturing an I-beam, with a corrugated core in its middle, according to which corrugations are formed in a median part of the core of a beam in ordinary 1 finished by means of two cylinders which mesh in a complementary way.
- the increase in the developed length of the corrugated core from the straight length of a flat core before formation of the corrugations is ensured by the reduction in the thickness of the core under the effect of the wave formation work.
- the beam in 1 with corrugated core is obtained from a finished ordinary beam and this by means of one or more rolling operations between two opposite structured cylinders.
- the additional length is provided by the reduction in the thickness of the core thanks to the action of two structured cylinders, which obviously causes internal tensions and a significant work hardening of the material and, therefore, a camber or a twist of the I-beam.
- the holder of the aforementioned patent attempts to remedy this drawback by forming the corrugations in the core in two or more passes.
- the problem of internal tensions is not at all resolved and, moreover, the process is quite expensive.
- Document FR-A-744 933 discloses metal sections with a locally reduced cross-sectional core, obtained by simple rolling.
- the latter seeks to provide a simple method for the manufacture of a profile of the aforementioned type, and of a cost practically equivalent to that of a normal beam.
- Another object of the present invention is to provide a method of manufacturing a profile of the aforementioned type which does not have the drawbacks of the methods known in the prior art and which allows, more particularly, the easy manufacture of laminated profiles comprising a corrugated part which has a minimum of residual tensions and internal stresses.
- the invention aims to provide an installation of a new type for the manufacture of said profiles.
- the rolled profile treated in accordance with the present invention is particularly resistant in particular to bending and buckling. As a result, for a desired mechanical strength, the weight of said profile can be reduced. Furthermore, given the simplicity of the process and the various steps used, the price of the profile obtained is lower than that of the other known types.
- the method of the invention makes it possible to obtain a profile, a part of which has an undulation without the individual stresses or the internal tensions being significant. Indeed, during the passage of the blank obtained in the first stage of the process between two cylinders or rollers, one of which at less has a larger diameter over part of its length, the space between the two cylinders or rollers is therefore reduced locally. The local rolling of the core thus obtained, over a distance less than its height between the flanges, prevents the creep of said flanges. In addition, unwanted wing deformations are avoided.
- the percentage of additional elongation to be given to the portion of the profile part to be corrugated is substantially equal to the percentage of excess length of the corrugation desired relative to the straight line.
- the shaping is carried out by folding between two rollers which are situated in a plane essentially perpendicular to the direction of travel of the profile and which have a structured surface, in particular rollers with grooved surface or grooved in the axial direction over a length essentially corresponding to the portion of the largest diameter of the roller or cylinder of the second step and, therefore, to the height portion of the section portion which is corrugated.
- the opposed structured rollers or rollers only mesh partially so that the rolled product is folded like a beam on two supports supporting a point load in the middle of its span.
- the profiles according to the present invention are particularly suitable in applications requiring high strength and low weight.
- the local rolling of the core over a distance less than its height between the two flanges prevents the creep of said flanges.
- unwanted wing deformations are also avoided.
- the shaping step is carried out by folding in a straightener which, moreover, makes it possible to straighten the profile obtained in a conventional manner.
- the folding-forming device essentially comprises two cylinders or rollers which are situated in a plane essentially perpendicular to the direction of travel of the profile and which have a structured surface, preferably grooved or grooved, in the axial direction over a length corresponding essentially to the height portion of the corrugated part of the profile to be manufactured.
- the opposite structured cylinders or rollers only partially mesh with one another.
- a section 1 1 is shown comprising a core 3 and two flanges 5 and 7, laminated in one piece with the core 3.
- the core 3 comprises, over a portion 9 of its height, a corrugation 11 in the longitudinal direction of the I-shaped.
- a profile in 1 For the purpose of manufacturing a profile in 1 according to the invention, said profile 1 is passed between two cylinders 21 and 23 arranged in a plane essentially perpendicular to the plane of the core 3 and forming part of a cage rolling 20.
- the diameter of each of the two cylinders 21 and 23 is greater on a portion 9 than at the ends 25 and 27.
- the profile 1 is further further laminated by vertical cylinders 28 and 29 which maintain the external dimensions of the profile 1.
- the profile thus obtained can then pass through a straightener 31, for example equipped with straightening rollers 33 to 38 arranged in a manner known per se to make the laminated profile straight.
- said dressing cage comprises two rollers 41 and 43 which are arranged in a plane 39 essentially perpendicular to the plane of travel of the profile 1 and which have a surface grooved in the axial direction, adapting one to the other in the manner of a gear while only partially entangling so as to produce a folding (FIG. 3).
- one of the two rollers can be rotated while the other is free to rotate.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Metal Rolling (AREA)
- Exhaust Gas After Treatment (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
- Air Bags (AREA)
- Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
- Laminated Bodies (AREA)
- Heat Treatment Of Steel (AREA)
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT89870077T ATE73515T1 (de) | 1988-06-03 | 1989-05-30 | Verfahren zum herstellen eines gewalzten stahlprofils mit einem gewellten teil und einrichtung, bestimmt fuer dieses verfahren. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE8800636A BE1001122A3 (fr) | 1988-06-03 | 1988-06-03 | Profile lamine comportant une partie ondulee, procede pour la fabrication de ceux-ci et installation destinee a leur fabrication. |
BE8800636 | 1988-06-03 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0345241A1 EP0345241A1 (de) | 1989-12-06 |
EP0345241B1 true EP0345241B1 (de) | 1992-03-11 |
EP0345241B2 EP0345241B2 (de) | 1996-10-23 |
Family
ID=3883447
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP89870077A Expired - Lifetime EP0345241B2 (de) | 1988-06-03 | 1989-05-30 | Verfahren zum Herstellen eines gewalzten Stahlprofils mit einem gewellten Teil und Einrichtung, bestimmt für dieses Verfahren |
Country Status (7)
Country | Link |
---|---|
US (1) | US4967581A (de) |
EP (1) | EP0345241B2 (de) |
AT (1) | ATE73515T1 (de) |
BE (1) | BE1001122A3 (de) |
CA (1) | CA1313315C (de) |
DE (1) | DE68900960D1 (de) |
ES (1) | ES2029566T5 (de) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10246164B4 (de) * | 2002-10-02 | 2014-03-20 | Benteler Automobiltechnik Gmbh | Verfahren zum Herstellen von Strukturbauteilen |
US6834525B2 (en) * | 2002-11-18 | 2004-12-28 | The Boeing Company | Adjustable corrugation apparatus and method |
US20070046428A1 (en) * | 2005-08-24 | 2007-03-01 | Wayne-Dalton Corporation | System and methods for automatically moving access barriers initiated by mobile transmitter devices |
US7327107B2 (en) | 2005-08-24 | 2008-02-05 | Wayne-Dalton Corp. | System and methods for automatically moving access barriers initiated by mobile transmitter devices |
US8058970B2 (en) * | 2005-08-24 | 2011-11-15 | Homerun Holdings Corporation | System and methods for automatically moving access barriers initiated by mobile transmitter devices |
US7327108B2 (en) * | 2005-08-24 | 2008-02-05 | Wayne-Dalton Corp. | System and methods for automatically moving access barriers initiated by mobile transmitter devices |
US7642481B2 (en) * | 2006-08-15 | 2010-01-05 | The Boeing Company | Apparatus and method for forming corrugated members |
WO2008024842A2 (en) * | 2006-08-24 | 2008-02-28 | Ltc Roll & Engineering Co. | Apparatus and process for reducing profile variations in sheet metal stock |
WO2012155953A1 (de) * | 2011-05-13 | 2012-11-22 | Mannstaedt Gmbh | VERFAHREN UND VORRICHTUNG ZUR HERSTELLUNG VON METALLPROFILEN MIT ENG TOLERIERTEM KAMMERMAß |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR744933A (de) * | 1933-04-27 | |||
US1106172A (en) * | 1914-05-02 | 1914-08-04 | Johann Martin Wetcke | Rolling-mill for sheet metal. |
DE2447554A1 (de) * | 1974-10-02 | 1976-04-08 | Mannesmann Ag | Verfahren zum richten von insbesondere rohren |
CA1150986A (en) * | 1979-08-24 | 1983-08-02 | Masami Hamada | Method for producing i-beam having centrally corrugated web and rolls for producing such i-beam |
US4251973A (en) * | 1980-04-07 | 1981-02-24 | Paik Young J | I-Beam construction and process therefor |
GB2074916B (en) * | 1980-05-09 | 1983-09-07 | Sumitomo Metal Ind | Method for producing i-beam having centrally corrugated web |
AT368725B (de) * | 1981-01-30 | 1982-11-10 | Evg Entwicklung Verwert Ges | Kombinierte richt- und biegemaschine |
JPS58107222A (ja) * | 1981-12-21 | 1983-06-25 | Hitachi Ltd | 帯板の一部にひだを成形する方法 |
JPS5916844A (ja) * | 1982-07-21 | 1984-01-28 | Asahi Chem Ind Co Ltd | 新規な光学活性化合物 |
-
1988
- 1988-06-03 BE BE8800636A patent/BE1001122A3/fr not_active IP Right Cessation
-
1989
- 1989-05-30 ES ES89870077T patent/ES2029566T5/es not_active Expired - Lifetime
- 1989-05-30 DE DE8989870077T patent/DE68900960D1/de not_active Expired - Lifetime
- 1989-05-30 AT AT89870077T patent/ATE73515T1/de not_active IP Right Cessation
- 1989-05-30 EP EP89870077A patent/EP0345241B2/de not_active Expired - Lifetime
- 1989-06-02 US US07/360,409 patent/US4967581A/en not_active Expired - Lifetime
- 1989-06-05 CA CA000601812A patent/CA1313315C/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0345241A1 (de) | 1989-12-06 |
US4967581A (en) | 1990-11-06 |
EP0345241B2 (de) | 1996-10-23 |
ES2029566T3 (es) | 1992-08-16 |
CA1313315C (en) | 1993-02-02 |
ES2029566T5 (es) | 1997-01-01 |
ATE73515T1 (de) | 1992-03-15 |
BE1001122A3 (fr) | 1989-07-25 |
DE68900960D1 (de) | 1992-04-16 |
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