WO2002096579A2 - Procede de fabrication de profiles metalliques - Google Patents
Procede de fabrication de profiles metalliques Download PDFInfo
- Publication number
- WO2002096579A2 WO2002096579A2 PCT/FR2002/001819 FR0201819W WO02096579A2 WO 2002096579 A2 WO2002096579 A2 WO 2002096579A2 FR 0201819 W FR0201819 W FR 0201819W WO 02096579 A2 WO02096579 A2 WO 02096579A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- elements
- profile
- cut
- welding
- assembly
- Prior art date
Links
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
- B21D47/00—Making rigid structural elements or units, e.g. honeycomb structures
- B21D47/04—Making rigid structural elements or units, e.g. honeycomb structures composite sheet metal profiles
-
- 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
Definitions
- the invention relates to a method for manufacturing metal profiles and, more specifically, to a method for manufacturing metal profiles of complex shape, having for example a three-dimensional geometry, an evolving radius of curvature, a variable thickness and / or wings forming between them, in section, evolutionary angles.
- profiles of complex shape is meant profiles whose different constituent elements have a non-planar shape.
- a first known manufacturing process for metal profiles consists in extruding a metal bar. Straight profiles are thus obtained. These profiles can then be shaped, if necessary, for example by bending. For certain materials such as titanium, forming must be carried out at high temperature. As it is difficult to obtain directly by this process a part having the desired dimensions, a part is generally produced having dimensions slightly greater than these and the manufacture is finished by machining this part. This process has several drawbacks.
- This • method has the disadvantage of requiring as many molds to manufacture, as one wishes to produce parts of different shapes and sizes.
- the cost of the molds is high.
- the metal may then not cool uniformly throughout its volume, which has the consequence of creating weak points in the structure of the profile.
- a third known method consists in producing the profiles directly by mass machining of a metal block.
- This method has the disadvantage of being long to implement, due to the importance of the machining cycle. In addition, it requires specific machining machines, which represents a significant investment. Thus, the manufacture of profiles more than 5m long requires large machines with 5-axis numerical control. Finally, this process mainly has the disadvantage of generating a lot of metal losses (about 95% of the metal block is transformed into chips). This is very disadvantageous, especially when the profile is made of an expensive metal such as, for example, titanium.
- the subject of the invention is precisely a new process for manufacturing metal profiles, of complex shapes, which does not have the drawbacks of existing manufacturing processes and which in particular makes it possible to manufacture long profiles in a relatively simple, rapid and inexpensive manner, without significant loss of metal.
- this result is obtained by a method of manufacturing a metal profile having in cross section at least two distinct non-aligned parts, said method being characterized in that it is applied to the manufacture of a profile of complex shape only formed of non-planar parts forming between them an angle which can be any and evolving according to profile length, and in that it consists in cutting from at least one metal sheet elements to dimensions corresponding to those of each of said parts, then assembling these elements together to obtain said metal profile.
- the edge of at least one of the elements is advantageously cut at a bevel, before being assembled with the other element.
- the various elements constituting the profile are cut flat, in flat metal sheets, then shaped before being assembled.
- the elements can however be shaped before being cut from the metal sheet.
- the deformations (elongation or shrinking) which will be induced during its shaping are advantageously calculated in each element intended to be shaped.
- This element is then cut to dimensions which are corrected by taking into account the abovementioned deformations.
- the different elements are assembled to each other by welding.
- This assembly can then be done by means of at least one laser beam, preferably without adding material.
- the assembly by welding can be carried out either at points distributed along a contact zone between the elements, ie continuously along said zone.
- the elements are advantageously kept in contact with each other by a clamping tool, according to a predetermined relative positioning.
- the identical elements are advantageously cut simultaneously from a stack of sheets.
- Recesses which may or may not be through holes, are optionally machined in at least some of the elements, before or during their cutting.
- the cutting of the different elements of the profile is preferably made either by high speed laser beam, or by abrasive water jet, or by traditional mechanical machining.
- Figure 4 schematically illustrates, in cross section, a first technique of assembly by welding of the two elements forming the T-profile of Figures 1 to 3;
- Figure 5 is a view comparable to Figure 4, which illustrates a second joining technique by welding;
- Figure G is a view comparable to Figures 4 and 5, which illustrates a third assembly technique by welding;
- Figure 7 is a sectional view comparable to Figures 4 to 6, which illustrates the assembly of two elements of a T-profile, not orthogonal to each other.
- drawings are made which represent the various elements whose assembly will then make it possible to manufacture the profile.
- Each of these drawings represents in three-dimensional form one of the constituent elements of the profile. Separation of the overall drawing into as many individual drawings as the profile has of constituent elements is also carried out, preferably, using CAD tools.
- Each of the elements thus defined is then developed in order to obtain the flat outline of a part called upon to constitute said element, after forming.
- This contour is established by taking into account the elongations or contractions likely to occur during the forming process.
- the deformations which will be induced in the element considered during its shaping are calculated and the corrected dimensions of the flat contour from which said element will be cut out are established, taking these deformations into account. Any suitable method can be used for this purpose, preferably using computer means.
- the different metal elements forming the profile are cut from a thin sheet, according to the flat contours previously determined.
- sheets with a thickness of between 0.5 mm and 2.5 mm it is possible in particular to use sheets with a thickness of between 0.5 mm and 2.5 mm.
- these elements can possibly be cut simultaneously from a panoply of stacked sheets.
- the various elements to be cut are placed in the sheet to be cut according to a nesting method, so as to optimize their placement and to minimize metal falls. This arrangement is particularly advantageous when using an expensive metal such as titanium.
- the cuts can be made by any known means and in particular by using a high speed laser beam, an abrasive water jet cutting machine or a traditional machining machine.
- the different metallic elements can be cut directly to the dimensions of the finished parts, with an accuracy of the order of two tenths of a millimeter.
- certain parameters of the laser beam are advantageously adjusted, such as its intensity and its speed of movement, according to the characteristics of the sheet to be cut.
- the same laser beam can also be used to carry out a preliminary marking of the contour on each of the elements to be cut.
- the laser beam parameters are then set differently to provide this function.
- the contours of the elements to be cut can also be identified on the sheet by means of a light beam.
- the cutting of the different elements is made from a flat sheet.
- plane metallic elements These are then formed, for example by forming, bending, etc. in a direction perpendicular to their thickness.
- the elements can also be directly cut from a sheet previously shaped, such as a curved sheet, or the like.
- the cutting step or the step of forming the constituent elements of the profile can be followed by a complementary step of surface treatment such as a degreasing step, ie ; clogging, etc.
- each of the constituent elements of the profile has a uniform thickness and a constant width over its entire length.
- this arrangement should not be considered as limiting the method according to the invention. So some at. fewer of said elements may have a non-uniform thickness (depending on the length and / or depending on the width of the element) and / or a variable width (continuously and progressively or discontinuously) depending on its length.
- this characteristic can in particular be obtained by chemical or mechanical machining, preferably after its cutting.
- these elements can be kept in contact, in said relative position, by a clamping tool.
- the elements thus positioned are then assembled together.
- the assembly can be carried out by any suitable means such as, preferably, by welding.
- the positioning and assembly steps are repeated as many times as necessary, taking into account in particular the accessibility of the parts to be welded, until the profile under consideration is completely produced.
- the steps thus repeated can relate to either at least two isolated elements, or at least one isolated element and at least one sub-assembly - made up of several already assembled elements, - or even at least two • sub-assemblies made up of several already assembled elements .
- Figure 1 the manufacture of a straight profile is shown: PI with a T-shaped cross section.
- the PI profile is manufactured by assembling two planar and rectangular elements Al and Bl.
- Element Al (view (a) in Figure 1) forms the lower wing of T and element Bl (view (b) in Figure 1) forms the upper wing of T.
- Element Bl is arranged perpendicular to one of the faces of the element Al, so that one f B ⁇ of the longitudinal edges of the element Bl is in contact with the aforementioned face of the element Al along a longitudinal axis x A1 of this face (view (c) in Figure 1).
- the assembly of elements A1 and B1 is preferably carried out by welding.
- Figure 2 there is shown the manufacture of a section P2 with a T-shaped cross section, bent in a single spatial direction.
- the section P2 is also manufactured by assembling two elements A2 and B2.
- the element A2 forming the lower wing of the T is planar and substantially in the shape of a crown arc
- the element B2 forming the upper wing of the T is obtained by. cutting of a rectangular element in a flat sheet (view (b) in figure 2), then bending of: this rectangular element according to a curvature identical to that of an axis
- the method according to the invention is applied to the manufacture of a profile P3 with a T-shaped cross section, bent in two spatial directions orthogonal to one another.
- the profile is produced by assembling, preferably by welding, two elements A3 and B3.
- the element A3 which forms the lower wing of the T, is obtained by cutting a planar element and substantially in the form of a crown arc in a flat metal sheet (view (a) in FIG. 3). This one is then bent, in a direction perpendicular to its thickness, as shown in view (b) in Figure 3.
- Element B3 which forms the upper wing of the T, is obtained by cutting an element of suitable shape from a flat sheet (view (c) in Figure 3). This element is then bent along a curvature identical to that of a longitudinal axis x A3 of the element A3 (view (d) in FIG. 3). As illustrated in (e) on the right of FIG. 3, the assembly is then carried out, .. v, th. preferably by welding, placing the element '.' B3. perpendicular to the - '. one of the faces of the element A3, -' so that one f B3 of the longitudinal edges of. the element B3 is in contact with the aforementioned face of the element A3 along one axis. • longitudinal x A3 of this face.
- This clamping tool may in particular include wedges, presses, clamps, etc.
- the weld bead is advantageously produced continuously, without the addition of material, by means of a laser beam.
- welding can also be carried out at points situated at suitable locations along the contact zone between the elements to be assembled. As illustrated diagrammatically by arrows in (a) and (b) in FIG. 4, the welding can be carried out in two stages by means of a laser beam
- the welding can also be carried out at once, by means of two laser beams (double flux) used simultaneously and placed on either side of the junction zone. between .elements A and B to be assembled.
- the welding can also be carried out in a single pass (by transparency), by means of a single laser beam ', when the element A forming. , the lower element of the T has a sufficiently small thickness (at most about 2.5 mm). Welding is then carried out through this element A. In this case, it is preferably used a clamping tool ensuring correct maintenance of all the parts to be welded, to avoid any deformation. It is then possible to control the direction of the laser beam on the element B to be welded, so that the laser beam follows the joint line even in the event that a deviation of the part B occurs, for any reason.
- the elements such as A and B forming the profile P must be assembled together in a non-orthogonal direction.
- the edge of the part B is then bevelled to be assembled with the part A, so as to form a chamfer.
- the edge of the part B is in contact with the opposite face of the part A over the entire surface of the chamfer.
- the angle formed between the elements such as A and B forming the profile P can also be variable depending on the length of the profile.
- the angle of the chamfer machined on the edge of part B. scheduled to be assembled in part A is also evolving.
- One or more of the elements intended to form the profile can be the object of additional machining such as the cutting of recesses in this element.
- These recesses can fulfill different functions, without departing from the scope of the invention.
- they may be holes intended for the subsequent fixing of the profile or for the fixing of other elements on the profile, fixing holes or passage of cables, or recesses intended to reduce the weight of the finished profile. while retaining sufficient characteristics of resistance to mechanical stresses to which it may be subjected.
- the aforementioned recesses and holes can be made, directly to the finished diameter, preferably during the cutting phase of the element considered.
- the recesses are preferably made using the same laser.
- Hl'.invention presents the great: at.vantage to allow the production of profiles of complex shapes, directly to • desired dimensions and • with good precision
- the method according to the invention also makes it possible to minimize material losses. Indeed, these are limited to the scrap produced during the cutting of the sheets. As previously observed, these drops can be reduced by optimizing the positioning of the various elements when cutting the sheet.
- the manufacturing method according to the invention makes it possible to produce profiles of complex shapes at a lower cost than the methods of the prior art.
- the mechanical stresses in the profile structure are minimized since there is no no forming of a three-dimensional profile, but only thin sheets depending on their thickness. Since this is small compared to the other dimensions of the shaped elements, and also generally compared to the radii of curvature used during forming, the mechanical stresses induced in the various constituent elements of the profile are therefore low.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2002317208A AU2002317208B2 (en) | 2001-06-01 | 2002-05-30 | Method for the production of metal profiles |
EP02745470A EP1399278A2 (fr) | 2001-06-01 | 2002-05-30 | Procede de fabrication de profiles metalliques |
CA2449005A CA2449005C (fr) | 2001-06-01 | 2002-05-30 | Procede de fabrication de profiles metalliques |
US10/181,235 US8507827B2 (en) | 2001-06-01 | 2002-05-30 | Method for the production of metal profiles |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR01/07230 | 2001-06-01 | ||
FR0107230A FR2825302B1 (fr) | 2001-06-01 | 2001-06-01 | Procede de fabrication de profiles metalliques |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2002096579A2 true WO2002096579A2 (fr) | 2002-12-05 |
WO2002096579A3 WO2002096579A3 (fr) | 2003-12-24 |
Family
ID=8863888
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2002/001819 WO2002096579A2 (fr) | 2001-06-01 | 2002-05-30 | Procede de fabrication de profiles metalliques |
Country Status (6)
Country | Link |
---|---|
US (1) | US8507827B2 (fr) |
EP (1) | EP1399278A2 (fr) |
AU (1) | AU2002317208B2 (fr) |
CA (1) | CA2449005C (fr) |
FR (1) | FR2825302B1 (fr) |
WO (1) | WO2002096579A2 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT509197B1 (de) * | 2010-03-10 | 2011-07-15 | Hinterreither Ronald | Tragprofil sowie verfahren zu seiner herstellung |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040194275A1 (en) * | 2003-04-02 | 2004-10-07 | Dreistern-Werk Maschinenbau Gmbh & Co. Kg | Method and device for the production of a metal profile |
GB0511311D0 (en) * | 2005-06-03 | 2005-07-13 | Henley Consultants Ltd | Fabricating a metal beam |
US8334477B1 (en) | 2008-07-21 | 2012-12-18 | Roll Forming Corporation | Method and apparatus for laser welding elongated workpieces |
CN102248298B (zh) * | 2011-07-08 | 2015-11-25 | 中国商用飞机有限责任公司 | 用于减少t型接头焊接变形的双激光束焊接方法 |
WO2013010267A1 (fr) * | 2011-07-19 | 2013-01-24 | Magna International Inc. | Procédé de soudage de pièces de travail l'une à l'autre |
CN103962720B (zh) * | 2014-04-24 | 2016-07-13 | 中国航空工业集团公司北京航空制造工程研究所 | 双光束激光焊接的同步控制方法及装置 |
NL2016454B1 (en) * | 2016-03-18 | 2017-10-04 | Remko Mark B V | Method for manufacturing a support structure. |
EP3379001B1 (fr) * | 2017-03-22 | 2020-01-08 | Marte and Marte Limited Zweigniederlassung Österreich | Structure portante en forme courbe quelconque |
RU2671783C1 (ru) * | 2017-12-04 | 2018-11-06 | Общество с ограниченной ответственностью "Межобластной финансовый центр оценки и экспертиз" (ООО "МФЦО") | Способ уменьшения остаточных деформаций металлических листов при сварке |
NL2025470B1 (en) * | 2020-04-30 | 2021-11-18 | Remko Mark B V | Method and apparatus for manufacturing a system configured to receive a panel |
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FR833804A (fr) * | 1938-02-16 | 1938-11-02 | Budd Edward G Mfg Co | Perfectionnements aux structures composities faites de métal en feuilles et à leurs procédés de fabrication |
FR1442875A (fr) * | 1965-08-03 | 1966-06-17 | American Mach & Foundry | Procédé et machine pour la fabrication de profilés soudés |
US4041270A (en) * | 1974-06-14 | 1977-08-09 | Kawasaki Steel Corporation | Methods of welding corner joints |
US4097716A (en) * | 1976-09-27 | 1978-06-27 | Aluminum Company Of America | Welding method |
US4288895A (en) * | 1976-11-10 | 1981-09-15 | The Glacier Metal Company, Limited | Bearings |
US4514613A (en) * | 1981-05-21 | 1985-04-30 | Lucas Industries Plc, Great King St. | Method of an apparatus for welding together metal components |
EP0531139A1 (fr) * | 1991-09-05 | 1993-03-10 | Toyota Jidosha Kabushiki Kaisha | Méthode de soudage au laser de tôles d'épaisseur différente |
US5393956A (en) * | 1992-08-04 | 1995-02-28 | Sollac | Method for butt welding at least two metal sheets |
DE19533831C1 (de) * | 1995-09-13 | 1997-01-30 | Howaldtswerke Deutsche Werft | Verfahren zum Heften von in T-Form aneinanderstoßenden Bauteilen |
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USRE22952E (en) * | 1947-12-23 | Magnesium basic carbonate | ||
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JP3479503B2 (ja) * | 2000-08-29 | 2003-12-15 | 株式会社ミハル | 曲げ加工品および曲げ加工方法およびそれに用いる曲げ加工装置 |
US6886251B1 (en) * | 2001-01-31 | 2005-05-03 | Vp Buildings, Inc. | Beam fabrication system |
-
2001
- 2001-06-01 FR FR0107230A patent/FR2825302B1/fr not_active Expired - Lifetime
-
2002
- 2002-05-30 WO PCT/FR2002/001819 patent/WO2002096579A2/fr not_active Application Discontinuation
- 2002-05-30 EP EP02745470A patent/EP1399278A2/fr not_active Withdrawn
- 2002-05-30 US US10/181,235 patent/US8507827B2/en not_active Expired - Fee Related
- 2002-05-30 AU AU2002317208A patent/AU2002317208B2/en not_active Ceased
- 2002-05-30 CA CA2449005A patent/CA2449005C/fr not_active Expired - Fee Related
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
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FR833804A (fr) * | 1938-02-16 | 1938-11-02 | Budd Edward G Mfg Co | Perfectionnements aux structures composities faites de métal en feuilles et à leurs procédés de fabrication |
FR1442875A (fr) * | 1965-08-03 | 1966-06-17 | American Mach & Foundry | Procédé et machine pour la fabrication de profilés soudés |
US4041270A (en) * | 1974-06-14 | 1977-08-09 | Kawasaki Steel Corporation | Methods of welding corner joints |
US4097716A (en) * | 1976-09-27 | 1978-06-27 | Aluminum Company Of America | Welding method |
US4288895A (en) * | 1976-11-10 | 1981-09-15 | The Glacier Metal Company, Limited | Bearings |
US4514613A (en) * | 1981-05-21 | 1985-04-30 | Lucas Industries Plc, Great King St. | Method of an apparatus for welding together metal components |
EP0531139A1 (fr) * | 1991-09-05 | 1993-03-10 | Toyota Jidosha Kabushiki Kaisha | Méthode de soudage au laser de tôles d'épaisseur différente |
US5393956A (en) * | 1992-08-04 | 1995-02-28 | Sollac | Method for butt welding at least two metal sheets |
DE19533831C1 (de) * | 1995-09-13 | 1997-01-30 | Howaldtswerke Deutsche Werft | Verfahren zum Heften von in T-Form aneinanderstoßenden Bauteilen |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT509197B1 (de) * | 2010-03-10 | 2011-07-15 | Hinterreither Ronald | Tragprofil sowie verfahren zu seiner herstellung |
AT509197A4 (de) * | 2010-03-10 | 2011-07-15 | Hinterreither Ronald | Tragprofil sowie verfahren zu seiner herstellung |
Also Published As
Publication number | Publication date |
---|---|
US8507827B2 (en) | 2013-08-13 |
FR2825302B1 (fr) | 2004-11-26 |
FR2825302A1 (fr) | 2002-12-06 |
US20040069755A1 (en) | 2004-04-15 |
CA2449005A1 (fr) | 2002-12-05 |
CA2449005C (fr) | 2012-05-15 |
WO2002096579A3 (fr) | 2003-12-24 |
EP1399278A2 (fr) | 2004-03-24 |
AU2002317208B2 (en) | 2007-12-20 |
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