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公开(公告)号：EP2933034B1
公开(公告)日：2016-06-29
申请号：EP13865147.6
申请日：2013-10-28
发明人： URABE, Masaki
摘要： A press forming method according to the present invention is a press forming method of press forming a formed part 1, which has: a top portion 5 having a concave outer edge 3 with a part of the outer edge being concave inwards; and a flange portion 7 subjected to bending forming along the concave outer edge 3 of the top portion 5, the press forming method including: a first forming process S1 of forming a preformed shape part 15, which includes, at a part where the flange portion 7 is formed in a blank material 9, a vertical wall portion 11 that becomes a part of the flange portion 7, and a mountain shaped portion 13 that is bent outwards from the vertical wall portion 11 and is convex towards the top portion 5; and a second forming process S2 of forming the flange portion 7 by performing bending forming on a part including the mountain shaped portion 13 of the preformed shape part 15 formed in the first forming process S1 along a bending line that is a boundary from the vertical wall portion 11.
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2.发明公开
公开(公告)号：EP2652162A1
公开(公告)日：2013-10-23
申请号：EP11776180.9
申请日：2011-10-28
发明人： KAMP, Arjen , SPANGEL, Sabine Maria
摘要： The invention relates to a method of producing a shaped aluminium alloy panel, preferably for aerospace or automotive applications, from 5000-series alloy sheet, the method comprising the steps of: providing a sheet made of 5000-series alloy having a thickness of about 0.05 to 10mm and a length in the longest dimension of at least 800mm; and stretch forming the sheet at a forming temperature between - 100°C and -25°C, to obtain a shaped aluminium alloy panel. The invention is also directed to a shaped article formed by the above method.
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公开(公告)号：EP1976651A1
公开(公告)日：2008-10-08
申请号：EP07700085.9
申请日：2007-01-23
发明人： FORSYTH, Ross
CPC分类号： B21D37/10 , B21D11/085 , B21D25/00 , B21D25/02 , B21D31/04 , B21D37/02 , B21D37/04 , B21D53/00 , B21D53/883
摘要： This invention concerns an active reconfigurable stretch forming tool, and in another aspect the invention is a method of stretch forming. The tool comprises an array of extensible shape forming elements which are driven in extension to produce the same force per unit area across a workpiece during shape forming. An array of limit switches are located in front of the array of shape forming elements, such that each shape forming element is driven in extension towards a respective limit switch during shape forming. In use, each limit switch is activated by the workpiece as it is shaped and each switch, upon activation, prevents further extension of the respective driven element. The tool and method are useful in the forming of three dimensional shapes in solid sheet metal or mesh, to produce panels for reflector antennas.
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4.发明公开METHOD AND APPARATUS FOR IN-SITU LEVELING OF PROGRESSIVELY FORMED SHEET METAL 有权方法和设备的渐进成型片的原位JUDGE
公开(公告)号：EP1585608A1
公开(公告)日：2005-10-19
申请号：EP04702989.7
申请日：2004-01-16
申请人： GenCell Corporation
摘要： A stretch-forming press (10) for stamping continuously fed sheet metal (32) includes a ram (14), a base member (44), and a feed mechanism (20) configured to advance a strip of sheet metal through the stretch-forming press. A forming station (58) has a die (59) configured to form a desired pattern in the strip of sheet metal. A leveling station (86) has a pair of opposed jaws (88, 90) slidably received in corresponding recesses (92, 102) of the stretch-forming press, with the jaws oriented at an angle with respect to a direction of travel for the strip of sheet metal as it passes through the leveling station (86).
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公开(公告)号：EP2558228A1
公开(公告)日：2013-02-20
申请号：EP11713843.8
申请日：2011-04-12
发明人： MONRO, Stuart , PRESSET, Alain , RILEY, Jonathan , VINCENT, Keith
摘要： A method and apparatus are disclosed which are suitable for use in the manufacture of two-piece metal containers. In particular, a way of making cups from metal sheet is disclosed using a combination of stretching and drawing operations. The resulting cups have the advantage of having a base thickness that is thinner relative to the ingoing gauge of the metal sheet.
摘要翻译： 公开了一种适用于制造两件式金属容器的方法和设备。 特别地，使用拉伸和拉伸操作的组合来公开一种由金属片制造杯子的方式。 所得到的杯具有相对于金属片的浇铸规格而言较薄的基础厚度的优点。
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6.发明公开
公开(公告)号：EP2259883A1
公开(公告)日：2010-12-15
申请号：EP09730365.5
申请日：2009-03-31
摘要： The invention relates to a method for controlling the flow of material when deep-drawing a workpiece. The aim of the invention is to devise a method which better utilizes the drawing capacity of a workpiece and produces a more accurate shape, particularly at the bottom of the drawn part. Said aim is achieved by a method in which the deep-drawing process is performed incrementally and in which at least one bead is incorporated into the flange zone of the workpiece prior to each increment of the deep-drawing process, thus allowing the bottom to be more accurately shaped while preventing material from accumulating in the flange zone. The invention further relates to a deep-drawing device (2).
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公开(公告)号：EP0928648A3
公开(公告)日：2001-01-24
申请号：EP98310519.8
申请日：1998-12-21
申请人： Alstom USA Inc.
IPC分类号： B21D25/00
摘要： A stretch-forming machine of the type wherein a pair of opposed curving jaws grips (24,25) opposing ends of a metal sheet to be stretch-formed in a curved configuration. Each of the jaws (24,25) are formed of an array of adjacent grippers movable relative to each other by respective hydraulic cylinders to define a part of the curve of the jaw. The improvement to the stretch-forming machine which is the subject of this application comprises a closed-loop servo-control means for moving each one of the grippers into a predetermined position relative to each other. Each of the servo-control means comprises a hydraulic cylinder position controller carried by the hydraulic cylinder of the one gripper for controlling hydraulic fluid flow to the hydraulic cylinder responsive to stored data representing the desired predetermined position of one of the grippers. A motor is provided for actuating the position controller in response to the data received by the position controller to move the hydraulic cylinder. Hydraulic cylinder position feedback means is positioned on the hydraulic cylinder for sensing the position of the hydraulic cylinder and communicating a signal representing the position of the hydraulic cylinder to the position controller.
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公开(公告)号：EP0140739A1
公开(公告)日：1985-05-08
申请号：EP84401816.8
申请日：1984-09-13
CPC分类号： C30B13/18 , B21D25/00 , Y10T117/1088
摘要： Il comprend au moins deux ensembles (6) comprenant chacun des moyens (18) de traction sur une extrémité (8) de la plaque (5) et des moyens (19) de rotation de l'extrémité autour d'un axe (A) perpendiculaire au plan de la plaque. Lorsque cet axe ne passe pas par le milieu de l'extrémité, on ajoute avantageusement à l'ensemble des moyens de translation transverse de l'extrémité. Les ensembles sont disposés de façon que la plaque soit en équilibre sous l'effet des tractions.
Application à la mise en tension d'un résistor plan pour l'élaboration de matéraux.-
9.发明公开
公开(公告)号：EP3335813A1
公开(公告)日：2018-06-20
申请号：EP17306795.0
申请日：2017-12-18
申请人： ACB
发明人： BOURRIAU, Benoît , CLERGEAU, Julien
IPC分类号： B21D25/04
摘要： L'invention concerne une machine de formage de tôle par étirage longitudinal, laquelle machine (1) comprend deux têtes d'étirage (2) situées de part et d'autre d'un outil de formage pour la tôle, lesquelles têtes d'étirage (2) comprennent chacune une ligne de mors (5) solidaire d'une structure support (8) qui est associée à des moyens d'étirage (9) et qui est montée sur un châssis (10) par l'intermédiaire d'un axe de basculement (11), au moins un vérin de basculement (12) étant interposé entre ledit châssis (10) et ladite structure support (8), pour permettre la manoeuvre en rotation de ladite structure support (8) autour dudit axe de basculement (11), et ledit châssis (10) étant porté par un bâti support (3).
Conformément à l'invention, cette machine d'étirage (1) comprend des moyens (13, 14), interposés entre ledit bâti support (3) et ledit châssis (10), agencés pour permettre un réglage du positionnement vertical dudit axe de basculement (11). Un procédé de mise en oeuvre d'une telle machine d'étirage est aussi décrit.-
公开(公告)号：EP2933034A4
公开(公告)日：2015-12-16
申请号：EP13865147
申请日：2013-10-28
申请人： JFE STEEL CORP
发明人： URABE MASAKI
摘要： A press forming method according to the present invention is a press forming method of press forming a formed part 1, which has: a top portion 5 having a concave outer edge 3 with a part of the outer edge being concave inwards; and a flange portion 7 subjected to bending forming along the concave outer edge 3 of the top portion 5, the press forming method including: a first forming process S1 of forming a preformed shape part 15, which includes, at a part where the flange portion 7 is formed in a blank material 9, a vertical wall portion 11 that becomes a part of the flange portion 7, and a mountain shaped portion 13 that is bent outwards from the vertical wall portion 11 and is convex towards the top portion 5; and a second forming process S2 of forming the flange portion 7 by performing bending forming on a part including the mountain shaped portion 13 of the preformed shape part 15 formed in the first forming process S1 along a bending line that is a boundary from the vertical wall portion 11.
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