EP3702061A1 - Procédé de fabrication d'objets métalliques coniques - Google Patents

Procédé de fabrication d'objets métalliques coniques Download PDF

Info

Publication number: EP3702061A1
Authority: EP; European Patent Office
Prior art keywords: conical; section; train; range; cylinder section
Prior art date: 2019-03-01
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

Application number

EP19160177.2A

Other languages

German (de)

English (en)

Other versions

EP3702061B1 (fr

EP3702061C0 (fr

Inventor

Daniel Moser

Markus Jost

Sandro BERTOGG

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Adval Tech Holding AG

Original Assignee

Adval Tech Holding AG

Priority date (The priority date 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 date listed.)

2019-03-01

Filing date

2019-03-01

Publication date

2020-09-02

2019-03-01 Application filed by Adval Tech Holding AG filed Critical Adval Tech Holding AG

2019-03-01 Priority to EP19160177.2A priority Critical patent/EP3702061B1/fr

2020-09-02 Publication of EP3702061A1 publication Critical patent/EP3702061A1/fr

2023-09-27 Application granted granted Critical

2023-09-27 Publication of EP3702061B1 publication Critical patent/EP3702061B1/fr

2023-09-27 Publication of EP3702061C0 publication Critical patent/EP3702061C0/fr

Status Active legal-status Critical Current

2039-03-01 Anticipated expiration legal-status Critical

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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
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/20—Deep-drawing
- B21D22/26—Deep-drawing for making peculiarly, e.g. irregularly, shaped articles
- 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
- B21D51/00—Making hollow objects
- B21D51/02—Making hollow objects characterised by the structure of the objects
- B21D51/10—Making hollow objects characterised by the structure of the objects conically or cylindrically shaped objects

Definitions

the present invention relates to a method for producing a component from a metal sheet, the component having an at least partially curved or linearly conical area and being shaped starting from a pot-shaped blank with an essentially cylindrical wall section, as well as devices for performing such a method and using components manufactured using the process.
the method is suitable for the production of aerosol dome elements or capsules, in particular for food, for example for coffee.
Pot-shaped objects made of metal can be formed from a flat sheet metal section in a cold forming process. Typically this takes place after a stamping process or combined with one in a single forming step (deep drawing) in which the finished component is given its final shape.
Such processes are used, for example, for the production of pots, spray cans, components in the automotive industry or in the furniture industry, for food packaging, etc.
aluminum and tinplate are used as materials.
the forming process must be carried out carefully in order to avoid the formation of cracks, wrinkles etc. and thus rejects or unsatisfactory quality. This applies above all to the formation of conical wall areas because, in contrast to the formation of axially cylindrical wall areas, guidance in the tool is not guaranteed to the same extent in such areas.
the object of the present invention to provide an improved method for producing a component from a sheet metal with at least one in sections curved or linearly conical area starting from a pot-shaped blank with an essentially cylindrical wall section, which can solve the problems mentioned at the beginning, in particular can prevent cracks or folds from forming during the forming process, in particular in the curved or linearly conical area, or Inhomogeneous wall areas, ie wall areas with variable wall thickness, which can then lead to cracks or deformations when the components are used, for example under increased pressure (in the case of coffee capsules, for example in the brewing process).
the present invention accordingly relates to a method for producing a component from a metal sheet, the component having an area that is curved or linearly conical at least in sections and is produced starting from a pot-shaped blank with an essentially cylindrical wall section.
a fold holder is to be understood as a tool element which, in the forming process, makes a significant contribution to preventing the formation of folds. This is done in such a way that the fold holder clamps the processed material against a counter-element, typically the drawing die, and during the forming process the material slides between the fold holder and the counter-element under this clamping, thus preventing or at least significantly reducing the formation of folds in the deep-drawing process.
a centering sleeve can take on the function of a fold holder if it is not only centered but also realizes the clamping described above at the same time.
the fold holder of the intermediate pull can stabilize the sheet metal, and with the following conical pull the free "frame" is inherently more stable due to the radii.
a first preferred embodiment of the proposed method is characterized in that the transition section runs essentially circumferentially and radially and the respective circumferential walls of the first and second cylinder sections run essentially circumferentially axially.
the conical centering sleeve can preferably also be designed as a fold holder, which clamps the first cylinder section and / or the transition section in the conical section at least in some areas between the conical fold holder and the conical draw die.
the ratio of the radius of the first cylinder section to the radius of the second cylinder section is preferably in the range of 2: 1-1.1: 1, in particular in the range of 1.6: 1-1.25: 1, particularly preferably in the range of 1.5: 1-1.3: 1 .
the ratio of the radius of the first cylinder section to the bottom radius of the second cylinder section is preferably in the range of 2.5: 1-1.2: 1, preferably in the range of 2.0: 1-1.4: 1, particularly preferably in the range of 1.9: 1-1.5: 1.
the bottom radius in the conical line preferably remains essentially unchanged, ie the bottom radius of the component made of sheet metal with an at least partially curved or linearly conical area corresponds to the bottom radius after the step line.
the ratio of the axial length L 1 of the first cylinder section to the axial length L 2 of the second cylinder section is preferably in the range of 4: 1-0.5: 1, in particular in the range of 3: 1-0.75: 1, particularly preferably in the range of 2.5: 1-1: 1.
the radii of curvature for the transitions from the flange to the axial cylindrical wall area of the blank and / or the transition radius from the second cylindrical area to the base of the component after the step is for sheet iron e.g. 5-20 x, especially preferably 7-13 x the material thickness.
the transition radius from the second cylindrical area to the floor of the component after the step can be selected in this area or also larger, e.g. 10-30 x the material thickness
the transition radii from the first axial cylindrical wall area to the radial wall area and / or from the radial wall area to the second axial cylindrical wall area for the component after the stepped train are e.g. 5-20 x, especially preferably 7-13 x the material thickness.
a preferably circular die cut for example in an alternating transversely offset manner, is punched from a flat sheet metal, preferably supplied in the form of a strip, in particular from a roll, before the stepped drawing.
this die cut becomes a pot-shaped blank with a cylindrical wall section is formed with blank radius R R.
the free circumferential edge of the pot-shaped blank is either folded over to form a radial flange or is designed to be curved and conically widening.
the outer diameter R F of the flange or the widening is preferably designed to be 1-50 times the material thickness of the sheet metal greater than the blank radius R R , preferably in the case of a curved, conically widening circumferential edge by 2-20 or 5- 15 times the material thickness of the sheet metal larger than the blank radius.
the components are preferably machined in that the opening of the cup-shaped workpieces is each directed upwards. But it is also possible to run the process so that the opening is directed downwards, the tools typically work in a vertical direction.
the blank or the sheet metal supplied preferably consists of aluminum or an aluminum alloy, preferably with a tensile strength R m , cf., for example, EN ISO 6892-1: 2009) in the range of 80-120 MPa.
Aluminum sheets of the following types EN AW-8011A, 8079, 8176, 8021, 8090, sintered 6061, sintered 2014 are possible.
Sheets made of iron or an iron alloy with a tensile strength R m see e.g. EN ISO 6892-1: 2009) of at least 500 MPa, preferably of at least 550 MPa, in particular tinplate of the following types are also possible: TH550, TH580, TH600, TH620, TH650, TH700.
lacquered form e.g. polyester lacquer, if necessary on primer and with a layer of hot-seal lacquer.
the at least partially curved or linearly conical area encloses an average angle in the range of 5-40 °, preferably in the range of 7-15 °, particularly preferably in the range of 8-12 °, with the symmetry axis of the component.
the formation of folds is particularly problematic for these angles when reshaping is carried out in one step, ie the method is as proposed for this Angle particularly suitable.
the at least partially curved or linearly conical area is preferably designed linearly conical at least partially; apart from any steps that may be present, it preferably has exclusively linearly conical areas, preferably all with essentially the same cone angle.
the method can be characterized in that a further cylindrical or conical area, preferably connected via a radial area, is formed on the bottom side adjoining the at least partially curved or linearly conical area in the conical section or in one or more subsequent forming steps.
a hole can also be punched out in the floor.
the conical line it is possible, particularly preferably in the conical line, to form a further conical area on the bottom side adjoining the at least partially curved or linearly conical area, this further conical area enclosing a larger mean angle with the axis of symmetry of the component than that which is curved at least partially or linear conical area.
the further conical area preferably forms a cone angle in the range of 30-80 °, particularly preferably in the range of 50-70 °.
the sheet metal that is fed in or from which the blank is made preferably has a thickness in the range from 0.05-0.4 mm, preferably in the range from 0.08-0.35 mm.
the method can preferably be carried out in a transfer station in several parallel processed tracks, with identical components being processed in parallel in the same stroke, preferably in at least two, particularly preferably 2-8, or 3-5 such parallel tracks.
Further processing steps typically follow the taper.
further forming steps in particular flange formation, optionally combined with grooving and / or edge rolling; Punching steps; Coating steps; Application steps, in particular application of inserts or application of closures; Filling steps; Quality control steps; Purification steps; Assembly steps on further components, these further steps preferably being carried out at least partially in the same transfer system as the step train and the cone train.
Such subsequent steps can in particular be designed in such a way, for example for the production of coffee capsules from aluminum sheet or tin plate, that a circumferential radial flange and an axial cylindrical edge area are formed in the cone line on the opening side, and a groove line is then formed on the cone line in a further step in the same transfer system is carried out, in which between a shaped piece and a die, optionally in combination with a further shaped piece, a bottom-side directed circumferential bead is formed.
the axial cylindrical edge area can be rolled on the bottom side into a rolled edge in an edge rolling with a roller die, the rolled edge preferably protruding over the plane of the flange both on the bottom side and on the opening side.
the present invention further relates to a device for carrying out a method as described above in the form of a transfer system with at least one station for the stepped train and a downstream station for the conical train.
a station for the punching step or a station for the production of the blank upstream in the same transfer system whereby these two stations can also be combined in one station, and in particular also subsequent stations for example for the above-described formation of a flange, one therein arranged bead, as well as a rolled edge.
stations can be provided in the same transfer system for the application of further elements, For example filter elements, or for filling in ingredients, for closing the capsule, or for quality control.
Other stations with punching operations can also follow, for example to punch a hole from the bottom of the cup-shaped component.
the tool for the stepped train preferably comprises a drawing die and a drawing punch guided displaceably in a fold holder, and the first cylinder section is clamped in the step train at least in some areas and in phases between the fold holder and the drawing die and the second cylinder section is formed by the drawing punch.
the tool preferably has a conical pulling die and a conical pulling punch guided displaceably in a conical pulling centering sleeve, and the first cylinder section is clamped in the conical pulling at least in some areas between the conical pulling centering sleeve and the conical pulling drawing die, and the transition section and the second cylinder section are formed between the conical pull drawing punch and the conical pull centering sleeve.
the present invention also relates to components produced in a method as described above or in a device as described above with an area that is curved or linearly conical at least in sections.
Figure 1 shows an axial section through the workpiece in the various machining phases.
the first phase in which the flat sheet metal section, a punched part, is presented and shaped is not shown.
this die cut is formed into the blank 1
this blank 1 is cylindrical, pot-shaped, it has a folded edge section 10 in the form of a radial flange, then a circumferential cylindrical section 7 with radius R 1 , followed by a curved section 9 this cylindrical section 7, and the blank 1 is closed off at the bottom by the bottom section 8, which runs perpendicular to the main axis 6, and therefore axially.
This blank 1 is initially formed into a stepped component 2 in a first forming step, the intermediate draw or step draw.
this stepped component now initially has a first cylinder section 12 with a radius R 1 , which merges via a curved transition section 14 into a second cylinder section 13 with a smaller radius R 2 .
the area of the transitions from 12 through 14 to 13 is also referred to as the stepped area 11.
Bottom side the second cylinder section 13 is followed by a short curved area and then the bottom 25 of the component after the stepped section with a bottom radius R B , which is defined as the radius of the flat area without the transition curve to the second cylinder section.
a second forming step now follows, in which this component 2 is formed into a conical component 3 in a first train, the actual conical train.
the previously stepped area 11 is reshaped in this conical section into a here curved conical area 15.
This curved, conical area 15 is in turn followed by a bottom area.
the bottom radius R B remains unchanged.
the component 4 is further deformed by deforming the cylindrical area 17 into a radial area 18, which is followed on the bottom by a cylindrical area 19, on the bottom the component is closed by the bottom 20.
This component 5 after the third Switzerland is typically then punched in the bottom area, and further operations can then follow, such as the formation of a rolled edge, etc.
the blank 1 is guided into a drawing die 23 by a punch.
the drawing die 23 forms the outer contour of the stepped area 11.
the punch is now made in two parts according to the invention.
An annular fold holder 21 is arranged in a circumferential area on the outside.
a cylindrical drawing punch 24 is arranged displaceably in this fold holder 23.
the front edge of the drawing punch 24 lies essentially flush with the front edge of the fold holder 21, and these lie with the front edge or plane essentially on the bottom section 8 of the blank 1.
the fold holder is in contact with the part at the beginning of this stepped train or at least in a phase of the stepped train, so that no creases can form during the deformation.
the train is basically cylindrical. In the end position of the step train, the sheet is held comprehensively.
the height of the intermediate pull can be adjusted as required.
the height of the intermediate train can be adjusted to the geometry of the following conical train.
the tool of the following cone train is in Figure 4 shown in the position in which the forming process is just beginning on the still stepped component 2.
a drawing die 27 and a radially outer annular fold holder 28 for the cone train and in this again a drawing punch 29 for the cone train is displaceably mounted.
the cylindrical first section 12 is already guided or even clamped between the centering sleeve 28 and the corresponding counter-contour with the cylindrical formation of the drawing die. Now the centering sleeve 28 and, parallel to it, the drawing punch 29 for the conical pulling into the drawing die, the first cylinder section 12 being guided and partially deformed at the same time, and above all the transition section 14 and the second cylinder section 13 through the conical contact surface 31 of the drawing punch 29 are reshaped.
the drawing punch then moves further than the centering sleeve 28 into the drawing die 27 until the conical contact surface 30 is reached, and consequently the conical area 15 between the surfaces 30 and 31 is reshaped, as shown in FIG Figure 5 can be seen.
the component Due to the two radii at the beginning of this conical section, the component is inherently more resistant to wrinkling.
the free frame is reduced in size by the two contact points of the drawing die and the drawing punch. In the end position, the component is formed without creases and is ready for the second pull.
a pot-shaped blank 1 is formed in a combined sequential punching and forming operation in a tool. It is also possible to first punch out only the flat punched part in a pure punching step 62 in a first tool and then to shape this into the blank 1 in a next tool.
the cup-shaped blank 1 has a closed bottom section 8 and an opening, the wall 8 of the blank is cylindrical and therefore runs axially circumferentially in a circular manner. In this step, a folded edge 47 is immediately formed on the free upper edge to stabilize the subsequent transport and to prepare for the rolling of the rolled edge.
This blank 1 is then formed into the stepped component 2 in an intermediate draw or stepped train 64.
This stepped component now still has the folded edge 47 on the free edge, a first cylinder section 12 with the same radius as the original radius of the blank 1, but this goes approximately halfway up over a transition section 14 into a second cylinder section 13 with a smaller radius.
This stepped component 2 is formed in a conical train 65 into the component 3 with a linear conical section.
a cylindrical edge area 52 remains, which has essentially the same radius as the original first cylinder section 12. This merges into the actual conical area 15 of the component 3 via a radial flange.
the bottom is also in one with a second cone angle further conical area 69 is formed. Both conical areas are formed in this conical train.
the overlying circumferential flange is further deformed in a groove train 66, as will be detailed below.
embossing step 68 in which further structures can be embossed, for example inscriptions but also special structuring of wall sections such as, for example, decorative grooves or the like.
the tool for a combined punching and forming step for producing the blank 1 from a supplied sheet metal is shown in FIG Figure 6 shown.
the tool is designed as a transfer station with an upper carrier plate 41 and a lower carrier plate 42, the plates are guided via guide cylinders 23 and can only be displaced relative to one another in the vertical direction.
Figure 6a shows the top dead center (TDC) of the tool.
the forming steps are carried out in such a way that the opening of the component is directed upwards.
the tape is fed in as a sheet metal strip and held by a hold-down pin 40 and a further hold-down pin 34 centered in the tool.
the drawing punch 35 for the drawing process is provided on the upper support plate, as is the associated fold holder 33, which radially surrounds the drawing punch. Furthermore, this fold holder 33 is now also enclosed by a cutting ring 36 or a cutting die, which has the task of providing the round, flat die-cut part before the deep-drawing process.
This cutting die 36 is carried by a support element 36a, this is at top dead center on a stop 36b of the corresponding guide 36d.
Cutting ring 36 and fold holder 33 are axially displaceable relative to one another to a small extent.
a lifting device 39 On the lower carrier plate 42 there is initially a lifting device 39 radially on the outside, which is braced upwards with a spring system 39. Following radially inward is the annular cutting punch 37 for the cutting train, which is at the same time a deep-drawing die for the train to form the blank. The ejector 38 for the cutting train then follows in the very center.
FIG. 6b now illustrates the position in which the circular die-cut 46 is being punched out of the sheet metal band.
the upper support plate 41 lowers downwards, the cutting punch 37 is fixed in its position, whereas the lifter 39 can be pushed down slightly by the suspension 39a.
the front surfaces of the fold holder 33 and cutting die 36 meet the surface of the sheet metal, the cutting die 36 is fixed by the stop on the support element 36a, the fold retainer 33, however, can yield slightly upwards.
the upper circumferential inner edge of the deep-drawing die 37 is convexly curved and the drawing height is set in such a way that the above-mentioned edge section 47, which is already slightly turned outwards, is formed on the blank 1, thus a short flange that widens in a trumpet-shaped manner to stabilize the blank 1 the top edge.
FIG. 7b there is an upper carrier plate 41 and a lower carrier plate 42.
the fold holder 21 for the stepped pull is provided on the upper carrier plate, and the drawing punch 24 is axially displaceably mounted in this.
a central recess of this drawing punch there is also a hold-down pin 48, which is mounted axially displaceably with its guide pin 48a in this central recess.
the front surface of the drawing punch 24 has a concave front surface contour 24a, which corresponds to the rear convex contour of the hold-down pin in the foremost extension area, so that when the hold-down pin 48 is in the completely retracted position in the drawing punch 24, these two elements together form a flush, radially extending front surface (compare Figure 7b ).
the lower drawing die 23 is provided as an annular element, axially immovable.
the ejector 49 is provided axially displaceably in this drawing die 23.
Figure 7a the tool for the stepped train is shown in top dead center.
the blank 1 is initially clamped between the ejector 49 and the front surface of the hold-down pin 48.
the fold holder 21 then first moves into the upper recess of the blank without having a deforming effect, which is facilitated by the slight enlargement 47.
the drawing punch 24 also begins to move further downwards than the front edge of the fold holder 21, and the stepped area is formed by the radial circumferential surface in the front region of the fold holder 21
the blank leads, the transition section 14 is formed on the upper edge of the drawing die and the second cylinder section through the radial outer surface of the drawing punch and the radial inner surface of the drawing die.
Figure 7b the tool for the stepped train is shown in the bottom dead center reached.
FIG 8 the tool for the cone pull is shown in top dead center.
a fold holder 28 on the upper carrier plate which is annular and whose position is not fixed relative to the upper carrier plate, but is axially displaceable.
the drawing punch 29 for the conical pull is formed in this fold holder 28; it has a double conical outer contour, the actual first cone 29a for the actual conical area and a further cone 29b for the conical formation of a bottom area 69.
a hold-down pin 15 is again provided, axially centered, which is mounted axially displaceably in the drawing punch.
the ring-shaped drawing die 27 On the lower support plate there is the ring-shaped drawing die 27, which, to a certain extent, provides the counter contour for the outer surface of the drawing punch 29.
the counter surface for the second cone 29b is provided by the lower conical surface 27b, and the counter surface for the formation of the actual conical area over the surface 29a of the drawing punch is provided by the area 27a of the drawing die.
an ejector 51 is again provided, which is displaceably provided, exactly as with the tool according to FIG Figure 7 Among other things, it also serves to push the finished component out of the tool from below when the top plate is pushed up again and make it available for the gripper of the transfer system.
the component after the step 2 is now between the hold-down pin 50 and the The ejector is clamped as soon as it has been moved to the position of this station by the transfer system, and then the upper part of the mold descends further.
FIG 8b the position is shown at which the actual forming process on component 2 is just beginning.
the fold holder 28 has already moved into the first cylindrical section 12 of the component 2, and the foremost surface of the drawing punch 29 is, as it were, shifted downwards onto the bottom of the component 2.
the actual forming process now begins when the tool is closed further and the drawing punch dips further into the drawing die 27.
the transition area 14 and the second cylinder section 13 are first reshaped, and then the second cylinder section 12 is drawn further down into the mold, so to speak, until only one cylindrical edge area 52 of the outer contour of the fold holder is in the completely closed position, as in FIG Figure 8c shown, is held.
Figure 9 shows only the flange area in the transfer tool for the grooved train 66.
the circumferential bead 53 is formed in this tool by a molding 59 from above, which dips into a die 58 with an internal molding 60. In this step, the cylindrical edge area 52 and likewise the folded edge 47 initially remain.
the in Figure 9 The rolled edge 55 shown is to be understood only schematically, it is only produced in the next tool or in a subsequent step in the same tool as that in FIG Figure 10 is shown.
a roller die 56 with a correspondingly designed roller contour 57 moves from above along a molded piece 56 downwards, can optimally start the rolling process through the already slightly expanded upper contour 47 and folds the rolled edge 55 into a completely closed edge.

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Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
Shaping Metal By Deep-Drawing, Or The Like (AREA)

EP19160177.2A 2019-03-01 2019-03-01 Procédé de fabrication d'objets métalliques coniques Active EP3702061B1 (fr)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
EP19160177.2A EP3702061B1 (fr)	2019-03-01	2019-03-01	Procédé de fabrication d'objets métalliques coniques

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
EP19160177.2A EP3702061B1 (fr)	2019-03-01	2019-03-01	Procédé de fabrication d'objets métalliques coniques

Publications (3)

Publication Number	Publication Date
EP3702061A1 true EP3702061A1 (fr)	2020-09-02
EP3702061B1 EP3702061B1 (fr)	2023-09-27
EP3702061C0 EP3702061C0 (fr)	2023-09-27

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CN112222272A (zh) *	2020-09-24	2021-01-15	中国航发贵州黎阳航空动力有限公司	一种头部外环的加工方法
CN114130882A (zh) *	2021-11-27	2022-03-04	徐州恒远高新技术有限公司	一种电子产品外壳集成组合冲压装置及其使用方法
CN114147421A (zh) *	2021-10-13	2022-03-08	浙江南龙工贸有限公司	防溢出可分类分时炖煮的多层微压锅的制备方法
EP4101558A1 (fr)	2021-06-10	2022-12-14	Adval Tech Holding AG	Procédé de fabrication d'un dôme d'aérosol
WO2023174757A1 (fr)	2022-03-14	2023-09-21	Adval Tech Holding Ag	Procédé de fabrication d'objets métalliques coniques en tôle mince
WO2024105098A1 (fr)	2022-11-18	2024-05-23	Adval Tech Holding Ag	Procédé de fabrication d'un dôme d'aérosol
WO2025201907A1 (fr)	2024-03-27	2025-10-02	Adval Tech Holding Ag	Procédé de production d'objets métalliques coniques constitués de tôle mince, et objets métalliques ainsi produits

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Publication number	Publication date
EP3702061B1 (fr)	2023-09-27
EP3702061C0 (fr)	2023-09-27

Publication	Publication Date	Title
EP3702061B1 (fr)	2023-09-27	Procédé de fabrication d'objets métalliques coniques
DE69901616T2 (de)	2002-09-12	Verfahren und vorrichtung zur herstellung eines dosendeckels mit einer verstärkungswulst
DE3783509T2 (de)	1993-08-05	Maschine und verfahren zum geregelten fliessdruecken von dosen.
DE69431845T2 (de)	2003-07-17	Verfahren zum formen eines metallbehälterkörpers
DE3736544C2 (de)	1999-05-20	Verfahren und Vorrichtung zur Herstellung eines Behälterdeckels
DE69616578T2 (de)	2002-05-29	Systeme und vorrichtung zur herstellung dekorativ geformter behälter
DE102015101715B4 (de)	2016-10-06	Verfahren und Umformvorrichtung zur Herstellung eines Hohlkörpers
DE2305029C2 (de)	1983-10-27	Verfahren zur spanlosen Herstellung von Stahlblechbehältern
DE10040173B4 (de)	2008-12-18	Verfahren zum Aufweiten und Verformen eines Dosenkörpers und Vorrichtung zur Durchführung des Verfahrens
EP0523215A1 (fr)	1993-01-20	Procede et dispositif de formage hydrostatique de corps creux en metal deformable a froid.
WO2023174757A1 (fr)	2023-09-21	Procédé de fabrication d'objets métalliques coniques en tôle mince
DE69118868T2 (de)	1997-01-02	Herstellung von einstückigen dosenkörpern mit kontrollierter seitenwandverlängerung
DD201858A5 (de)	1983-08-17	Verfahren fuer die herstellung duennwandiger, aus einem stueck gefertigter hohler metallkoerper
DE3416079A1 (de)	1984-11-08	Behaelter mit verjuengtem querschnitt sowie verfahren und vorrichtung zur herstellung derartiger behaelter
DE19818489B4 (de)	2007-08-30	Verfahren und Vorrichtung zum Herstellen eines Dosenspiegels
EP2344288A2 (fr)	2011-07-20	Procédé et dispositif pour réaliser un filetage extérieur sans enlèvement de matière sur des pièces creuses en métal
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DE102009001305B4 (de)	2017-08-17	Verfahren zur Herstellung eines Profils an einem Blechteil, Vorrichtung zur Durchführung des Verfahrens sowie Blechteil, herstellbar nach dem Verfahren
EP3509772A1 (fr)	2019-07-17	Procédé et dispositif de fabrication d'éléments en tôle formés, en particulier d'éléments en tôle à brides
WO2005023451A1 (fr)	2005-03-17	Procede de fabrication d'un objet en forme de cuvette
DE102015108768A1 (de)	2016-12-08	Verfahren und Vorrichtung zur Erzielung von großen Kragenlängen
DE19727599B4 (de)	2007-08-02	Verfahren zur Herstellung von Metallrädern
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DE69921961T2 (de)	2005-12-22	Verfahren zum Herstellen eines Behälters mit profiliertem Boden
DE2655639A1 (de)	1977-06-16	Verfahren zur herstellung eines ringes

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