EP2217393A1 - HERSTELLVERFAHREN HOCH MAßHALTIGER HALBSCHALEN - Google Patents
HERSTELLVERFAHREN HOCH MAßHALTIGER HALBSCHALENInfo
- Publication number
- EP2217393A1 EP2217393A1 EP08858046A EP08858046A EP2217393A1 EP 2217393 A1 EP2217393 A1 EP 2217393A1 EP 08858046 A EP08858046 A EP 08858046A EP 08858046 A EP08858046 A EP 08858046A EP 2217393 A1 EP2217393 A1 EP 2217393A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- shell
- preformed
- shells
- finished
- section
- 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
- 238000004519 manufacturing process Methods 0.000 title abstract description 9
- 238000000034 method Methods 0.000 claims abstract description 31
- 239000000463 material Substances 0.000 claims abstract description 18
- 238000003825 pressing Methods 0.000 claims abstract description 5
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 238000003698 laser cutting Methods 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 claims 1
- 238000002360 preparation method Methods 0.000 claims 1
- 230000009466 transformation Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 description 6
- 230000006835 compression Effects 0.000 description 5
- 238000003466 welding Methods 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
- B21J5/08—Upsetting
-
- 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
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/20—Deep-drawing
- B21D22/30—Deep-drawing to finish articles formed by deep-drawing
Definitions
- the invention relates to a method for the production of highly dimensionally stable, deep-drawn half-shells with a bottom portion and a frame, wherein first of all a preformed half-shell is formed from a blank, which is subsequently formed into the finished half-shell.
- closed hollow sections are used in motor vehicles, which have specially adapted to the application cross sections and material thicknesses. So far, closed hollow sections are usually prepared by first a tube is formed, the pipe is subjected to corresponding bends and Vorverformungen and then takes a hydroforming of the pre-bent or pre-formed tube to the final shape of the closed hollow profile. On the one hand, not all components can be produced in this way, since during hydraulic forming local strains of the material are exceeded and thus cracking can occur. In addition, uncontrollable wrinkling may occur during hydroforming. In addition, the previously used process steps for producing an application-adapted, closed hollow profile are very complicated and therefore expensive. Although a closed hollow profile can in principle also be produced from two deep-drawn half shells.
- a method for producing half-shells is known from published Japanese patent application JP 08/168830, in which a circuit board is first deep-drawn in a die and projecting flange areas. The flange areas are then simultaneously compressed and sheared off via a cutting and punching punch.
- the problem with the half-shells produced in this way is that they have irregularities at the edges and are therefore suitable for welding in an Shock are not particularly well suited.
- the half shells usually still restoring forces, which complicate the welding.
- EP 1 792 671 A1 discloses a method for press-forming half-shells, which are subsequently welded into a closed hollow profile.
- the object of said European patent application is to provide half-shells with thickened edge regions between the bottom region and the frame. For this reason, a preformed half-shell is initially produced from a circuit board, which provides excess material that is pressed from the bottom region into the edge regions between the frame and the bottom region of the half-shell during the forming into the final shape.
- the present invention is concerned with the reduction of the springback of deep-drawn half shells.
- the present invention has the object to provide a method for the production of highly dimensionally stable half shells, with which low equipment cost low dimensionally stable half shells can be produced that are easily welded together.
- the entire cross-section of the preformed half shell due to its geometric shape has excess board material, by the excess material during the Forming the preformed half-shell in its final shape by at least one further pressing operation, the entire cross-section is compressed to the finished half-shell and the finished half-shell substantially over the entire cross section has an increased wall thickness.
- Excess board material in the bottom area are provided by the fact that the bottom portion of the preformed half-shell is concave, convex or wavy shaped.
- the preformed half shell has flange regions and the frame is stretched over a flange braking action, the springback of the preformed half shell can already be reduced.
- Flange-free half-shells can be made available according to a further developed embodiment of the method according to the invention in that the flange areas are separated during and / or after the forming of the finished half-shell via cross slide or laser cutting or by other methods. Despite the preformed half shells with flange areas used, an economical method for the preferred production of high-dimensional, flange-less shells is thus provided.
- the strengths required, for example, for the use of the half shells in motor vehicle construction can be made available in that the board consists of steel or a steel alloy. At the same time good forming properties of the boards are provided.
- the inventive method in that the deformation of the board in the preformed half-shell and the deformation of the preformed half-shell in the final shape in a single device, preferably in a single die with exchangeable bottom takes place, for example, which can be realized in a progressive compound tool. Not only investment costs can be saved with it, but usually also cycle times for the production of half-shells, since transport paths between different dies omitted. This leads to a particularly high efficiency of the method according to the invention.
- FIG. 1 is a schematic sectional view of a preformed half-shell according to a first embodiment of the method according to the invention
- 3 is a schematic sectional view of a preformed half-shell according to a second embodiment of the method according to the invention
- FIG. 5 is a schematic sectional view of a preformed half-shell according to a third embodiment of the method according to the invention.
- a preformed half-shell 1 is shown in a schematic sectional view.
- the half-shell has a frame 2 and a bottom portion 3.
- the bottom portion 3 is slightly curved and the additional flanges 4 are provided.
- FIGS. 2a) and 2b A first embodiment of the method according to the invention is now shown in FIGS. 2a) and 2b).
- the figures show schematically a die 5 with a die 6, which together with the punch 7 the now flangeless half shell 1 can transform to the final shape.
- Fig. 2a) it can be seen that the punch 7 due to the preform of the half-shell 1 in the forming of the half-shell 1, the bottom portion 3 and the frame 2 upsets. Due to the compression process, a material flow is generated, which corresponds approximately to the arrows shown in Fig. 2a).
- the wall thickness of the finished half shell over the entire cross section is slightly increased by upsetting over the entire cross section. The increase in the wall thickness is not shown in the figures.
- this also means at the same time that stresses are generated in the horizontal direction in the bottom region 3 and in the vertical direction in the frame 2 during the deformation.
- the first preformed half-shell 1 initially has a convex bottom area 3 in order to provide additional board material for the compression.
- the preformed half-shell 1 'of FIG. 3 provides the additional blanking material for the upsetting because the preformed half-shell 1' has a convex bottom portion 3 '.
- the excess material from the convex bottom portion is pressed into the side regions or in the frame region of the half-shell, so that in the frame 2 'perpendicular to the bottom region extending and in the bottom region horizontally extending voltages are introduced, which for remindfederungsarmut the finished molded half-shell 1 'lead.
- the punch 7 ' is particularly simple and has no elements for compressing the frame. The compression of the frame 2 'is achieved via the hold-down 8', which cause a compression due to the flow of material from the bottom portion 3 '.
- Embodiment of the method according to the invention also during the forming flange 4 '' has.
- the flange portions 4 '' are held by hold-downs 8 '' during the forming according to a third embodiment of the method according to the invention, as can be seen with reference to FIGS. 6a) and 6b).
- the bottom portion 3 is convexly preformed in the third embodiment so that sufficient board material can be provided to compress the bottom portion 3" and the frame 2 "according to the invention. Subsequently, the flanges 4 '' can be cropped.
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007059251A DE102007059251A1 (de) | 2007-12-07 | 2007-12-07 | Herstellverfahren hoch maßhaltiger Halbschalen |
PCT/EP2008/065700 WO2009071437A1 (de) | 2007-12-07 | 2008-11-17 | HERSTELLVERFAHREN HOCH MAßHALTIGER HALBSCHALEN |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2217393A1 true EP2217393A1 (de) | 2010-08-18 |
EP2217393B1 EP2217393B1 (de) | 2012-03-14 |
Family
ID=40342737
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08858046A Active EP2217393B1 (de) | 2007-12-07 | 2008-11-17 | HERSTELLVERFAHREN HOCH MAßHALTIGER HALBSCHALEN |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP2217393B1 (de) |
CN (2) | CN101888908A (de) |
AT (1) | ATE549110T1 (de) |
DE (1) | DE102007059251A1 (de) |
WO (1) | WO2009071437A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102020202004A1 (de) | 2020-02-18 | 2021-08-19 | Thyssenkrupp Ag | Verfahren zum Herstellen von umgeformten Blechteilen und Vorrichtung |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009059197A1 (de) | 2009-12-17 | 2011-06-22 | ThyssenKrupp Steel Europe AG, 47166 | Verfahren und Vorrichtung zur Herstellung eines Halbschalenteils |
DE102011115219B4 (de) * | 2011-09-24 | 2020-11-05 | Audi Ag | Verfahren und Vorrichtung zur Herstellung eines Blechformteils unter Vermeidung von Nachlaufkanten |
DE102013103612B8 (de) | 2013-04-10 | 2023-12-28 | Thyssenkrupp Steel Europe Ag | Verfahren und Stauchwerkzeug zur Herstellung von hoch maßhaltigen Halbschalen |
DE102013103751A1 (de) * | 2013-04-15 | 2014-10-16 | Thyssenkrupp Steel Europe Ag | Verfahren zur Herstellung von hochmaßhaltigen Halbschalen und Vorrichtung zur Herstellung einer Halbschale |
DE102016205492A1 (de) | 2016-04-04 | 2017-10-05 | Thyssenkrupp Ag | Verfahren und Vorrichtung zum Umformen eines Halbzeugs |
DE102016116759A1 (de) | 2016-09-07 | 2018-03-08 | Thyssenkrupp Ag | Verfahren und Werkzeug zur Herstellung von Blechbauteilen |
DE102016116758A1 (de) | 2016-09-07 | 2018-03-08 | Thyssenkrupp Ag | Verfahren und Vorrichtung zur Herstellung von geformten, insbesondere flanschbehafteten Blechbauteilen |
DE102016118419A1 (de) * | 2016-09-29 | 2018-03-29 | Thyssenkrupp Ag | Verfahren und Vorrichtung zum Herstellen von Bauteilen mit angepasstem Bodenbereich |
DE102016118418A1 (de) * | 2016-09-29 | 2018-03-29 | Thyssenkrupp Ag | Verfahren zur Herstellung eines geformten Bauteils mit einem maßhaltigen Zargenbereich |
DE102016125671A1 (de) | 2016-12-23 | 2018-06-28 | Thyssenkrupp Ag | Verfahren und Vorrichtung zur Herstellung von Blechbauteilen |
DE102017200115A1 (de) | 2017-01-05 | 2018-07-05 | Thyssenkrupp Ag | Verfahren zum Herstellen von Blechbauteilen und Vorrichtung hierfür |
JP6527544B2 (ja) * | 2017-03-28 | 2019-06-05 | Jfeスチール株式会社 | プレス成形装置及びプレス成形品の製造方法 |
JP6527543B2 (ja) | 2017-03-28 | 2019-06-05 | Jfeスチール株式会社 | プレス成形装置及びプレス成形品の製造方法 |
CN111182979A (zh) | 2017-10-06 | 2020-05-19 | 蒂森克虏伯钢铁欧洲股份公司 | 借助于预成型构件制造成型板材构件的方法和装置 |
CN107794385B (zh) * | 2017-10-13 | 2019-09-10 | 烟台大丰轴瓦有限责任公司 | 一种大型船舶发动机主轴瓦的制备方法 |
CN107838638B (zh) * | 2017-11-03 | 2019-08-16 | 重庆跃进机械厂有限公司 | 一种大型薄壁轴瓦防变形成型方法 |
CN108098272B (zh) * | 2017-12-19 | 2019-07-12 | 中国航发南方工业有限公司 | 一种螺纹孔加工方法 |
CN108097797B (zh) * | 2017-12-19 | 2019-09-03 | 中国航发南方工业有限公司 | 一种电动机安装壳制备方法 |
DE102017131002B4 (de) | 2017-12-21 | 2022-06-15 | Benteler Automobiltechnik Gmbh | Verfahren zur Herstellung eines Schalenbauteils |
DE102018114653A1 (de) | 2018-06-19 | 2019-12-19 | Thyssenkrupp Ag | Verfahren zur Herstellung lastoptimierter Blechbauteile |
DE102018210174A1 (de) * | 2018-06-22 | 2019-12-24 | Thyssenkrupp Ag | Verfahren zur Herstellung eines Trägers und eines Leiter- oder Kastenrahmens |
CN110280613B (zh) * | 2019-07-02 | 2021-08-10 | 深圳市华科精密组件有限公司 | 一种金属薄料区域性挤厚装置及挤厚方法 |
DE102021121616B3 (de) | 2021-08-20 | 2022-10-06 | Thyssenkrupp Steel Europe Ag | Verfahren zur Herstellung von Blechbauteilen und Vorrichtung hierfür |
DE102021133789A1 (de) | 2021-12-20 | 2023-06-22 | Thyssenkrupp Steel Europe Ag | Verfahren zur Herstellung von Blechbauteilen und Vorrichtung hierfür |
DE102022100163B3 (de) | 2022-01-05 | 2023-02-09 | Thyssenkrupp Steel Europe Ag | Verfahren zur Herstellung von Blechbauteilen und Vorrichtung hierfür |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4437395A1 (de) * | 1994-10-19 | 1996-05-02 | Werdau Fahrzeugwerk | Verfahren zum Anstauchen von Rohrenden und Vorrichtung zur Durchführung des Verfahrens |
JP3579936B2 (ja) * | 1994-11-21 | 2004-10-20 | トヨタ自動車株式会社 | 有底筒状製品の成形方法 |
JP3518004B2 (ja) | 1994-12-19 | 2004-04-12 | 株式会社デンソー | 環状加工品の端面切断方法およびその端面切断方法に用いる端面成形用金型 |
DE19648091C2 (de) * | 1996-11-20 | 1999-10-28 | Daimler Chrysler Ag | Verfahren und Einrichtung zur Herstellung von Hohlprofilen mit endseitigen Querschnittserweiterungen |
JP3832927B2 (ja) * | 1997-06-02 | 2006-10-11 | プレス工業株式会社 | アクスルケースの製造方法 |
JP2001314921A (ja) * | 2000-04-28 | 2001-11-13 | Nissan Motor Co Ltd | プレス加工による局部肉厚増加方法 |
JP4697086B2 (ja) | 2005-12-01 | 2011-06-08 | 日産自動車株式会社 | 屈曲した角部を有する成形部品およびその製造方法並びに製造装置 |
DE102006020000B3 (de) * | 2006-04-26 | 2007-11-08 | Thyssenkrupp Steel Ag | Verfahren zur Herstellung von rückfederungsarmen Halbschalen |
-
2007
- 2007-12-07 DE DE102007059251A patent/DE102007059251A1/de not_active Withdrawn
-
2008
- 2008-11-17 CN CN2008801195809A patent/CN101888908A/zh active Pending
- 2008-11-17 CN CN201510404542.XA patent/CN104959442A/zh active Pending
- 2008-11-17 WO PCT/EP2008/065700 patent/WO2009071437A1/de active Application Filing
- 2008-11-17 EP EP08858046A patent/EP2217393B1/de active Active
- 2008-11-17 AT AT08858046T patent/ATE549110T1/de active
Non-Patent Citations (1)
Title |
---|
See references of WO2009071437A1 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102020202004A1 (de) | 2020-02-18 | 2021-08-19 | Thyssenkrupp Ag | Verfahren zum Herstellen von umgeformten Blechteilen und Vorrichtung |
WO2021165255A1 (de) | 2020-02-18 | 2021-08-26 | Thyssenkrupp System Engineering Gmbh | Verfahren zum herstellen von umgeformten blechteilen und vorrichtung |
Also Published As
Publication number | Publication date |
---|---|
CN104959442A (zh) | 2015-10-07 |
WO2009071437A1 (de) | 2009-06-11 |
ATE549110T1 (de) | 2012-03-15 |
EP2217393B1 (de) | 2012-03-14 |
CN101888908A (zh) | 2010-11-17 |
DE102007059251A1 (de) | 2009-06-10 |
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