EP1933997A1 - Verfahren zum erzeugen einer abkantung an einem blechelement - Google Patents
Verfahren zum erzeugen einer abkantung an einem blechelementInfo
- Publication number
- EP1933997A1 EP1933997A1 EP06792019A EP06792019A EP1933997A1 EP 1933997 A1 EP1933997 A1 EP 1933997A1 EP 06792019 A EP06792019 A EP 06792019A EP 06792019 A EP06792019 A EP 06792019A EP 1933997 A1 EP1933997 A1 EP 1933997A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- metal element
- sheet metal
- embossing
- fold
- embossing roller
- 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
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 85
- 239000002184 metal Substances 0.000 title claims abstract description 84
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 31
- 238000005452 bending Methods 0.000 claims abstract description 23
- 238000004049 embossing Methods 0.000 claims description 49
- 239000011324 bead Substances 0.000 claims description 17
- 239000000463 material Substances 0.000 abstract description 10
- 230000002093 peripheral effect Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000004886 process control Methods 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
- B21D7/00—Bending rods, profiles, or tubes
- B21D7/06—Bending rods, profiles, or tubes in press brakes or between rams and anvils or abutments; Pliers with forming dies
-
- 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
- B21D11/08—Bending by altering the thickness of part of the cross-section 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
- B21D53/00—Making other particular articles
- B21D53/74—Making other particular articles frames for openings, e.g. for windows, doors, handbags
Definitions
- the present invention relates to a method for producing a fold on a sheet metal element.
- the outer bending radius of the produced fold is predetermined by the material thickness of the sheet metal element. This results in the bending process of a sheet metal element with a material thickness of 1 mm, a fold with an outer radius of about 3.5 mm. When bending a sheet metal element with a greater material thickness of, for example, 1.5 mm creates a fold with a larger outer radius of about 4 mm.
- the present invention has for its object to provide a method for producing a fold on a sheet metal element, in which the outer radius of the fold is largely independent of the material thickness of the sheet metal element predetermined.
- Vorprofilprofil of the sheet metal element such that on a first side of the sheet metal element along a desired Abkantline extending recess and on a second side of the sheet metal element of the recess opposite, also along the desired Abkantline extending projection is generated; and Bending the sheet metal element at the Abkantline, along which the recess and the projection extend, to produce the fold.
- the invention is thus based on the concept of pre-profiling the sheet metal element before the actual bending process so that the desired outer radius is generated.
- the inventively provided Vorprofilieren the subsequent bending process is also facilitated;
- the contact force required for the bending of the sheet metal element in the method according to the invention is less than the contact force that would be required to produce a correspondingly small outer radius by means of conventional press bending without pre-profiling.
- the projection is located on the (convexly curved) outside of the generated fold.
- the sheet metal element is advantageously pre-profiled so that the protrusion produced during pre-profiling has an outer radius which corresponds to the desired outer radius of the fold or greater than the desired outer radius of the fold.
- the outer radius of the projection is at most about ten times, in particular at most about five times, the desired outer radius of the fold.
- the outer radius of the protrusion may be in the range up to about 10 mm.
- the pre-profiling of the sheet metal element is preferably carried out by means of at least one embossing roller.
- This embossing roller may have a wedge-shaped in cross section recupergewulst.
- the embossing bead has a wedge angle, i. having an included by the adjacent boundary surfaces of the embossment bead angle, of approximately 90 °.
- the embossing roller is preferably pressed against the sheet metal member to produce the recess and the opposing projection with a pressing force of about 5 kN to about 250 kN.
- the sheet metal element can be guided past the embossing roll at a speed which substantially corresponds to the rotational speed of the embossing roll on its outer circumference.
- the speed at which the sheet metal element passes the embossing roll may be, for example, from about 0.5 meters per minute to about 40 meters per minute.
- the sheet metal element is guided past in the pre-profiling on a support roller, which has a recess, in particular a circumferential groove for receiving the projection produced in the pre-profiling.
- the width of the recess, in particular the circumferential groove for example, from about 1 mm to about 10 mm.
- the sheet-metal element is guided in the pre-profiling between an embossing roller and a support roller opposite the embossing roller.
- the outer radius of the protrusion produced in the pre-profiling is preferably at most 10 mm, for example about 5 mm.
- the outer radius of the folded edge produced on the sheet metal element is preferably at most 2 mm, for example approximately 1 mm.
- the pre-profiling of the sheet metal element is preferably carried out by means of an embossing roller with a Crugewulst and the embossing roller opposite support roller with a circumferential groove opposite the procurgewulst, wherein the groove width (B) of the circumferential groove is smaller than the width (b) of the embossment bead.
- Claim 15 is directed to a sheet metal element with at least one fold, which has been produced by the method according to the invention.
- Such a sheet metal element with one or more inventively produced folds is particularly suitable for use as part of a countertop, a flushing module, a kitchen back wall or a kitchen front.
- the present invention has the further object of providing a device which makes it possible to produce a fold on a sheet metal element with a thickness of the material of the sheet metal element largely independent outer radius.
- a device for Vorprofilie- tion of a sheet metal element before a Abkantvorgang which comprises a stamping roller with a preparatgewulst and one of the embossing roller opposite support roller with a recess opposite the procurgewulst, in particular a circumferential groove.
- the inventive method and the device according to the invention make it possible to produce folds on a sheet metal element with a particularly small outer radius in a simple manner.
- a small outer radius of a fold leads to particular conciseness of the overall impression of the optical design.
- a smaller outer radius of a fold further facilitates the design and definition of bevels along the fold.
- FIG. 1 shows a schematic section through ahomkantendes sheet metal element in an initial state.
- FIG. 2 shows a schematic front view of a pre-profiling device for pre-profiling the sheet-metal element before the fold
- FIG. 3 shows a schematic side view of the pre-profiling device from FIG. 2, with the viewing direction in the direction of the arrow 3 in FIG. 2;
- Fig. 4 is a schematic front view of a folding device for
- Fig. 5 is a schematic front view of the folding device
- Fig. 6 is a schematic plan view of the folded sheet metal element.
- 100radal or functionally equivalent elements are denoted by the same reference numerals in all figures.
- the illustrated in Fig. 1, designated 100radalende metal sheet member is formed as a substantially flat sheet metal plate having a material thickness d in the range of, for example, about 0.5 mm to about 2 mm.
- the sheet metal element 100 may be formed, for example, as a stainless steel sheet metal element, in particular as a chromium-nickel-steel sheet metal element.
- the sheet metal element 100 may be formed of the steel with the material number 1.4301 (according to DIN EN 10088).
- the sheet-metal element 100 to be folded is pre-profiled in a pre-profiling device 102 shown in FIGS. 2 and 3 such that a depression 106 extending along the desired bending line and having a wedge-shaped cross section is formed on a first main surface 104 and on a first opposite to the second major surface 108 of the recess 106 opposite, also along the desired Abkantline extending projection 110 is generated, wherein the projection 110 has an outer radius R, which corresponds to the desired outer radius R A of the folded sheet metal element 100 at the fold or greater than that desired outer radius R A of the fold.
- the pre-profiling device 102 comprises a substantially cylindrical embossing roller 112 which is provided at its periphery with a recupergewulst 114 which projects beyond the cylindrical peripheral surface 116 of the embossing roller 112 by a height h of, for example, about 0.2 mm to about 1 mm.
- the embossing bead 114 has a wedge-shaped cross section with a wedge angle ⁇ of approximately 92 °, so that the two boundary surfaces 118a, 118b of the embossing bead 114 with each other an angle of about 92 °.
- the width b of the embossment bead 114 i. its extent in the axial direction of the embossing roll 112 is, for example, from about 1 mm to about 3 mm.
- the embossing roller 112 is rotatably supported about its longitudinal axis 118 and can be driven to rotate in the direction of rotation 120 (clockwise in FIG. 3).
- Vorprofilleiters worn 102 comprises a parallel to the embossing roller 112 aligned, spaced from the same support roller 122 which is formed substantially cylindrical and has a the embossing bead 114 of the embossing roller 112 opposite circumferential groove 124.
- the width B of the circumferential groove 124 i. the extent thereof in the axial direction of the support roller 122 is, for example, from about 1 mm to about 10 mm.
- the groove width B is smaller than the width b of the embossment bead 114.
- the depth of the circumferential groove 124 is selected such that the projection 110 formed in the pre-profiling can extend into the circumferential groove 124.
- the support roller 122 is rotatably mounted about its longitudinal axis 128 in a rotational direction 126 (counterclockwise in FIG. 3).
- the gap width s of the gap between the peripheral surfaces of the embossing roller 112 on the one hand and the support roller 122 on the other hand is slightly larger than the material thickness d of the sheet metal element 100, so that the sheet metal element 100 inserted into the gap between the embossing roller 112 and the support roller 122 and the sheet metal element 100 in the direction of movement 130 can be moved through this gap.
- the direction of movement 130 of the sheet metal element 100 coincides at the contact point of the sheet metal element 100 with the embossing roller 112 with the direction of rotation 120 of the embossing roller 112 and at the contact point of the sheet metal element 100 with the support roller 122 with the direction of rotation 126 of the support roller 122.
- the moving speed of the plate member 100 is identical to the rotational speed of the embossing roller 112 at the peripheral surface thereof and the rotational speed of the support roller 122 at the peripheral surface thereof, for example, from about 0.5 m per minute to about 40 m per minute.
- the embossing roller 112 is pressed with a contact force in the range of about 5 kN to about 250 kN against the sheet metal element 100 and impresses so by means of the Regewulstes 114, the recess 106 in the sheet metal element 100, wherein at the same time in the circumferential groove 124 of the support roller 122 protruding projection 110 is formed.
- the shape of the embossing bead 114 and the contact pressure are selected so that the protrusion 110 generated has the desired outer radius R, which corresponds to the desired outer radius R A of the later fold or greater than the desired outer radius R A of the fold.
- R A of the bend of 1 mm with a material thickness of the sheet metal element 100 of 1.25 mm for example, an embossment bead 114 is used which has a width b of 1.78 mm and a height h of 0.5 mm.
- the speed of movement of the sheet metal element 100 and the rotational speed of the embossing roller 112 at its periphery are in this case about 4 m per minute.
- the pressing force with which the embossing roller 112 is pressed against the sheet metal element 100 is in this case about 50 kN.
- the folding device 132 comprises a die 134 with a recess 136 whose boundary surfaces 138a, 138b enclose an angle of, for example, approximately 30 ° with each other.
- a recess 140 may be provided with a rectangular cross-section.
- the folding device 132 comprises a die 142 which faces the die 134 and has a tip 134a, 144b facing the die 134, which likewise enclose an angle of, for example, approximately 30 ° with each other and substantially parallel to the boundary surfaces 138a and 138b of the die 134 are aligned.
- the punch 142 of the folding device 132 is movable in a vertical direction 146 relative to the die 134. After the pre-profiled sheet member 100 has been inserted into the space between the punch 142 and the die 134 (with the punch 142 moved away from the die 134) (see FIG.
- the punch 142 becomes relative to the die 134 along the direction 146 moves the die 134, deforming the intermediate sheet metal member 100 such that the portions of the first major surface 104 lying outside the recess 106 enclose an angle of approximately 90 ° with each other, and the portions of the second major surface 108 located outside the projection 110 also include one another Include angles of approximately 90 °, so that the sheet metal element 100 along the recess 106 and the projection 110 is bent by an angle of approximately 90 °, as shown in Fig. 5.
- the projection 110 is not substantially deformed during the bending process, so that its outer radius R produced in the pre-profiling essentially remains, or is stretched, so that its outer radius generated in the pre-profiling decreases.
- the sheet metal element 100 shown in FIG. 6 therefore has, on its bending line 150, an outer radius R A of approximately 1 mm, which corresponds to or is smaller than the outer radius R of the projection 110 produced during the pre-profiling.
- the bent sheet metal element 100 can be used in this form or be further processed by further Abkantvor réelle or other forming operations.
- the provided with the fold sheet metal element 100 is particularly suitable for use as part of a countertop, a sink module, a kitchen back wall or a kitchen front.
- the bevel produced in the manner described above on the sheet metal element 100 for example by chamfering and / or polishing, can be further processed.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
- Manufacture Or Reproduction Of Printing Formes (AREA)
- Wire Bonding (AREA)
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL06792019T PL1933997T3 (pl) | 2005-09-16 | 2006-09-13 | Sposób wytwarzania załamania krawędzi na elemencie blaszanym, za pomocą tego sposobu wytwarzany element blaszany oraz urządzenie do wstępnego profilowania elementu blaszanego |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005044423A DE102005044423A1 (de) | 2005-09-16 | 2005-09-16 | Verfahren zum Erzeugen einer Abkantung an einem Blechelement |
PCT/EP2006/008900 WO2007031289A1 (de) | 2005-09-16 | 2006-09-13 | Verfahren zum erzeugen einer abkantung an einem blechelement |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1933997A1 true EP1933997A1 (de) | 2008-06-25 |
EP1933997B1 EP1933997B1 (de) | 2012-03-21 |
Family
ID=37441042
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06792019A Active EP1933997B1 (de) | 2005-09-16 | 2006-09-13 | Verfahren zum erzeugen einer abkantung an einem blechelement, durch dieses verfahren hergestelltes blechelement sowie vorrichtung zum vorprofilieren eines blechelements |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP1933997B1 (de) |
AT (1) | ATE550116T1 (de) |
DE (1) | DE102005044423A1 (de) |
DK (1) | DK1933997T3 (de) |
ES (1) | ES2384394T3 (de) |
PL (1) | PL1933997T3 (de) |
WO (1) | WO2007031289A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2972653B1 (fr) * | 2011-03-14 | 2013-03-15 | Nexter Systems | Procede de mise en forme de toles mecano soudees de forte epaisseur et structure obtenue par ce procede |
JP5454619B2 (ja) | 2012-05-28 | 2014-03-26 | Jfeスチール株式会社 | 閉断面構造体の成形方法及び閉断面構造体の成形装置 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB160238A (en) * | 1919-12-12 | 1921-03-14 | Frederick Brian Underwood | Improvements in rolling sections in metal |
US3850019A (en) * | 1972-11-28 | 1974-11-26 | Anaconda American Brass Co | Method of producing a metal strip including a longitudinal channel by roll-form reduction of a multi-gage strip |
CH616093A5 (en) * | 1977-12-23 | 1980-03-14 | Schwab Louis Sa | Method for obtaining a sharp edge formed by bending a metal sheet |
AT359805B (de) * | 1979-07-10 | 1980-12-10 | Zeman & Co | Verfahren zum biegen von blechen und vor- richtung zur durchfuehrung des verfahrens |
SE8102351L (sv) * | 1981-04-13 | 1982-10-14 | Plannja Ab | Forfarande for att astadkomma bockning |
WO1989001833A1 (en) * | 1987-09-04 | 1989-03-09 | Lane & Roderick, Inc. | Forming process for producing sharp corners in sheet metal and apparatus useful therein |
-
2005
- 2005-09-16 DE DE102005044423A patent/DE102005044423A1/de not_active Withdrawn
-
2006
- 2006-09-13 ES ES06792019T patent/ES2384394T3/es active Active
- 2006-09-13 DK DK06792019.9T patent/DK1933997T3/da active
- 2006-09-13 AT AT06792019T patent/ATE550116T1/de active
- 2006-09-13 WO PCT/EP2006/008900 patent/WO2007031289A1/de active Application Filing
- 2006-09-13 EP EP06792019A patent/EP1933997B1/de active Active
- 2006-09-13 PL PL06792019T patent/PL1933997T3/pl unknown
Non-Patent Citations (1)
Title |
---|
See references of WO2007031289A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2007031289A1 (de) | 2007-03-22 |
ES2384394T3 (es) | 2012-07-04 |
DE102005044423A1 (de) | 2007-03-22 |
EP1933997B1 (de) | 2012-03-21 |
ATE550116T1 (de) | 2012-04-15 |
PL1933997T3 (pl) | 2012-08-31 |
DK1933997T3 (da) | 2012-04-30 |
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