WO1996019306A1 - Tool for reshaping without stock removal at least two metal sheets of different thickness joined by butt-welding in a stepped area into a plate for use in car body construction, and car body part made of at least two metal sheets - Google Patents

Tool for reshaping without stock removal at least two metal sheets of different thickness joined by butt-welding in a stepped area into a plate for use in car body construction, and car body part made of at least two metal sheets Download PDF

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Publication number
WO1996019306A1
WO1996019306A1 PCT/EP1995/004918 EP9504918W WO9619306A1 WO 1996019306 A1 WO1996019306 A1 WO 1996019306A1 EP 9504918 W EP9504918 W EP 9504918W WO 9619306 A1 WO9619306 A1 WO 9619306A1
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WO
WIPO (PCT)
Prior art keywords
area
sheets
tool
metal sheets
car body
Prior art date
Application number
PCT/EP1995/004918
Other languages
German (de)
French (fr)
Inventor
Gerhard Neurohr
Original Assignee
Thyssen Industrie 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.)
Filing date
Publication date
Application filed by Thyssen Industrie Ag filed Critical Thyssen Industrie Ag
Priority to AU43439/96A priority Critical patent/AU4343996A/en
Publication of WO1996019306A1 publication Critical patent/WO1996019306A1/en

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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
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K11/00—Resistance welding; Severing by resistance heating
    • B23K11/02—Pressure butt welding

Definitions

  • Tool for post-processing by forming at least two through a butt weld in the area of one
  • the invention relates to a tool for reworking by reshaping at least two sheets of different thicknesses which are connected to one another by a butt weld in the area of a step jump to form a sheet metal blank for use in body construction in the motor vehicle industry and a body part consisting of at least two sheets.
  • the invention relates to a sheet metal blank as a structural part in the body shop of the motor vehicle industry, consisting of at least two sheets of different thicknesses connected to one another by a butt weld.
  • tailored blanks In car body construction in the automotive industry, welded sheet metal blanks with different sheet thicknesses are also referred to with the English term “tailored blanks”. Such “tailored blanks” are preferred in the automotive industry as body sheets, but also in other industrial areas, for example B. used in the household appliance industry.
  • the special feature of "tailored blanks” is the step jump in the area of the joining seam of the two sheets. Because of this visible joining seam and because of the step jump, "tailored blanks" are mainly used for body parts. For the use of "tailored blanks” it is important in which direction the step jump lies after the sheet metal forming.
  • the step jump points outwards, it can happen that the seam after the connection with the outer sheet is marked on it, for example in such cases, tailored blanks can no longer be used in the quality requirements applicable in the automotive industry.
  • this is not relevant, since the outer sheet in these areas is covered by seals, facings, etc. If such a cover is not provided, the step change after the sheet metal forming must in any case point inwards. In this case, however, there are sealing problems, since the necessary seals for protection against dust, water and air are not completely in place in the area of the step change. This can also cause acoustic problems (wind noise) and water ingress.
  • the invention has for its object to first design a tool according to the preamble of claim 1 such that "tailored blanks" can be produced without such a step change.
  • the invention has for its object to provide a welded sheet metal plate consisting of at least two sheets as a structural part z. B. for use in body construction in the automotive industry, which no longer has the step change in "tailored blanks".
  • the tool according to the invention is designed in such a way that a sheet metal plate consisting of two butt-welded metal sheets passes through Forming can be designed in such a way that after sheet metal forming, the step change in the contour area where seals are applied is shaped in such a way that the quality disadvantages that would otherwise arise can no longer occur.
  • there are mold inserts in the forming tool in which the material can flow away to the inside in a special space during the forming process. Due to the uniform transition created in this way, the seals later also lie completely against the sheet metal contour in this area.
  • a sheet metal board according to the invention is particularly advantageous to use as a body sheet.
  • the transition from one sheet to the other, which is considerably different in thickness, follows a smooth curve. There is no longer a step change.
  • the arrangement is such that the
  • Joining seam gradually increases the wall thickness to the full wall thickness of the other sheet.
  • the transition is therefore continuous, gradually without jumps and waves on the outside.
  • the material pushed away at the top can run along a curve or family of curves, the curvature of which is stronger, since this does not interfere with the design or the appearance.
  • the invention is illustrated - partly schematically - for example. Show it
  • FIG. 1 shows a partial cross section through a roof frame of a car, partly broken away and without hatching
  • Figure 2 shows a partial cross section, also partially broken off, in the transition area from a door to
  • FIG. 3 a sheet metal plate designed as “tailored blanks” according to the prior art
  • FIG. 4 shows a forming tool with a set of molds consisting of an upper part and a lower part, partly in section and broken away
  • FIG. 5 shows a sheet metal blank after its production in a tool according to the invention
  • Figure 6 installed a sheet metal plate according to the invention as a body sheet in a motor vehicle, shown partially broken.
  • the reference numeral 1 denotes a roof of a car, 2 a dust seal and 3 a trim strip. 4 shows a pane and 5 shows a window guide seal.
  • a locking plate is indicated at 6 and a door inner plate at 7 as "tailored blank", while 8 represents an inner frame cladding.
  • 8 represents an inner frame cladding.
  • an edge protection with an acoustic seal is provided, while 10 is a glued on the door frame Main seal represents.
  • FIG. 2 shows a window guide rail 12, an outer sheet 13 and again a door inner sheet 14 designed as a “tailored blank”.
  • 15 denotes a door seal in the area of the rain gutter
  • 16 represents a roof frame in the area of the A-pillar again shows a main seal.
  • the "tailored blank” is covered to the outside by a seal and the like. This is not the case in the construction according to FIG. 2. In this case the step change must point inwards.
  • sealing problems can arise here, since The seals required to protect dust, water and air are not fully in contact.
  • FIG. 3 since here the two sheets 18 and 19 forming a welded sheet metal plate, which form the sheet metal plate as "tailored blank" 14, in their wall thicknesses are very different and form a step at 20. As a result, a seal 21 is in the
  • Area of this step 20 is no longer full. Rather, an approximately triangular cavity 22 is formed here, into which water and dust can penetrate. In addition, wind noise may form in this area.
  • the tool 23 according to the invention has a set of molds which has an upper part 24 and a lower part 25.
  • recesses for receiving the sheets 18 and 19 are provided in the upper and lower part 24 and 25.
  • the lower part 25 is provided with a recess 31 into which the material formed by the step 20 and thus to be pushed away by the curve 28 can flow.
  • the contour 32 of the thicker sheet 18 with dashed lines and with solid lines the contour after the forming can be clearly seen from FIG. 5 with dashed lines.
  • the curve shape 28 corresponds to the curve of the upper part 24, during the Curve shape 31 corresponds to the contour of the lower part 25.
  • the gentle course of curve 28 and the pronounced curvature of curve 31 in the area of weld seam 26 can be clearly seen. This hump-shaped area 31 is displaced inwards.
  • the seal 21 can be arranged on the top of the sheet metal blank without any voids.
  • the cavity 22 has disappeared since the seal 21 now also lies completely against the sheet metal contour in the area of the previous step (FIG. 6).
  • the design of the forming tool according to FIG. 4 completely fulfills the requirements with regard to the tightness against air, dust and water.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

A tool is disclosed for reshaping without stock removal at least two metal sheets joined by butt-welding. The tool is designed to allow the use of so-called tailored blanks even on the outer side or in the area of the outer side without any disturbing steps.

Description

Werkzeug zum Nachbearbeiten durch Umformen von mindestens zwei durch eine Stumpfschweißnaht im Bereich eines Tool for post-processing by forming at least two through a butt weld in the area of one
Stufensprunges zu einer Blechplatine miteinander verbundenenStep jump connected to a sheet metal board
Blechen unterschiedlicher Dicke zur Verwendung im Karosseriebau der Kfz-Industrie und aus mindestens zwei Blechen bestehendesSheets of different thicknesses for use in body construction in the automotive industry and consisting of at least two sheets
KarosserieteilBody part
Die Erfindung bezieht sich auf ein Werkzeug zum Nachbearbeiten durch Umformen von mindestens zwei durch eine Stumpfschweißnaht im Bereich eines Stufensprunges zu einer Blechplatine miteinander verbundenen Blechen unterschiedlicher Dicke zur Verwendung im Karosseriebau der Kfz-Industrie und aus mindestens zwei Blechen bestehendes Karosserieteil.The invention relates to a tool for reworking by reshaping at least two sheets of different thicknesses which are connected to one another by a butt weld in the area of a step jump to form a sheet metal blank for use in body construction in the motor vehicle industry and a body part consisting of at least two sheets.
Des weiteren betrifft die Erfindung eine Blechplatine als Konstruktionsteil im Karosseriebau der Kfz-Industrie bestehend aus mindestens zwei durch eine Stumpfschweißnaht miteinander verbundenen Blechen unterschiedlicher Dicke.Furthermore, the invention relates to a sheet metal blank as a structural part in the body shop of the motor vehicle industry, consisting of at least two sheets of different thicknesses connected to one another by a butt weld.
Im Karosseriebau der Kfz-Industrie bezeichnet man geschweißte Blechplatinen mit unterschiedlichen Blechdicken auch mit dem englischen Begriff „tailored blanks". Derartige „tailored blanks" werden bevorzugt in der Automobilindustrie als Karosseriebleche, aber auch in anderen Industriebereichen, z. B. in der Hausgeräteindustrie, eingesetzt. Das besondere Merkmal von „tailored blanks" ist der Stufeπsprung im Bereich der Verbindungsnaht der beiden Bleche. Wegen dieser sichtbaren Verbindungsnaht und wegen des Stufensprungs werden „tailored blanks" vorwiegend bei Karosserieteilen eingesetzt. Für den Einsatz von „tailored blanks" ist es wichtig, in welcher Richtung der Stufensprung nach der Blechumformung liegt. Weist der Stufensprung nach außen, so kann es vorkommen, daß sich die Naht nach der Verbindung mit dem Außenblech auf diesem abzeichnet, z. B. beim Falzen oder Bördeln. In solchen Fällen sind „tailored blanks" bei den in der Automobilbranche geltenden Qualitätsansprüchen nicht mehr verwendbar. Allerdings gibt es auch Anwendungsfälle, bei denen dies nicht relevant ist, da das Außenblech in diesen Bereichen durch Dichtungen, Verblendungen usw. abgedeckt wird. Ist eine derartige Abdeckung nicht vorgesehen, so muß der Stufensprung nach der Blechumformung auf jeden Fall nach innen zeigen. In diesem Falle ergeben sich jedoch Dichtprobleme, da im Bereich des Stufensprungs die notwendigen Dichtungen zum Schutz vor Staub, Wasser und Luft nicht vollständig anliegen. Dadurch können auch Akustikprobleme (Windgeräusche) sowie Wassereinbrüche entstehen.In car body construction in the automotive industry, welded sheet metal blanks with different sheet thicknesses are also referred to with the English term “tailored blanks”. Such “tailored blanks” are preferred in the automotive industry as body sheets, but also in other industrial areas, for example B. used in the household appliance industry. The special feature of "tailored blanks" is the step jump in the area of the joining seam of the two sheets. Because of this visible joining seam and because of the step jump, "tailored blanks" are mainly used for body parts. For the use of "tailored blanks" it is important in which direction the step jump lies after the sheet metal forming. If the step jump points outwards, it can happen that the seam after the connection with the outer sheet is marked on it, for example in such cases, tailored blanks can no longer be used in the quality requirements applicable in the automotive industry. However, there are also applications in which this is not relevant, since the outer sheet in these areas is covered by seals, facings, etc. If such a cover is not provided, the step change after the sheet metal forming must in any case point inwards. In this case, however, there are sealing problems, since the necessary seals for protection against dust, water and air are not completely in place in the area of the step change. This can also cause acoustic problems (wind noise) and water ingress.
Der Erfindung liegt die Aufgabe zugrunde, zunächst ein Werkzeug gemäß dem Oberbegriff des Patentanspruches 1 derart auszubilden, daß „tailored blanks" ohne einen derartigen Stufensprung hergestellt werden können.The invention has for its object to first design a tool according to the preamble of claim 1 such that "tailored blanks" can be produced without such a step change.
Des weiteren liegt der Erfindung die Aufgabe zugrunde, eine aus mindestens zwei Blechen bestehende geschweißte Blechplatine als Konstruktionsteil z. B. zur Verwendung im Karosseriebau der Kfz-Industrie zu schaffen, die den Stufensprung bei „tailored blanks" nicht mehr aufweist.Furthermore, the invention has for its object to provide a welded sheet metal plate consisting of at least two sheets as a structural part z. B. for use in body construction in the automotive industry, which no longer has the step change in "tailored blanks".
Die Aufgabe betreffend das Werkzeug wird durch die in Patentanspruch 1 wiedergegebenen Merkmale gelöst.The object relating to the tool is achieved by the features set out in claim 1.
Das erfindungsgemäße Werkzeug ist so ausgeführt, daß eine aus zwei stumpf zusammengeschweißten Blechen bestehende Blechplatine durch Umformung so gestaltet werden kann, daß nach der Blechumformung der Stufensprung in dem Konturenbereich, wo Dichtungen anliegen, in einer solchen Art geprägt sind, daß die sonst entstehenden Qualitätsnachteile nicht mehr auftreten können. Erfindungsgemäß sind dazu im Umformwerkzeug Formeinsätze vorhanden, bei denen das Material in einen besonderen Raum beim Umformgang nach innen wegfließen kann. Aufgrund des so geschaffenen gleichförmigen Überganges liegen auch die Dichtungen später in diesem Bereich vollständig an der Blechkontur an. Durch diese Ausführung des Umformwerkzeuges werden die Anforderungen hinsichtlich der Dichtheit gegenüber Staub, Luft und Wasser voll erfüllt, so daß „tailored blanks" nun überall dort eingesetzt werden können, wo sie bisher wegen der nachteiligen Qualität nicht angewendet werden konnten.The tool according to the invention is designed in such a way that a sheet metal plate consisting of two butt-welded metal sheets passes through Forming can be designed in such a way that after sheet metal forming, the step change in the contour area where seals are applied is shaped in such a way that the quality disadvantages that would otherwise arise can no longer occur. According to the invention, there are mold inserts in the forming tool, in which the material can flow away to the inside in a special space during the forming process. Due to the uniform transition created in this way, the seals later also lie completely against the sheet metal contour in this area. Through this design of the forming tool, the requirements with regard to the tightness against dust, air and water are fully met, so that "tailored blanks" can now be used wherever they could not previously be used due to the disadvantageous quality.
In Patentanspruch 2 ist eine vorteilhafte Ausführungsform der Erfindung beschrieben.In claim 2, an advantageous embodiment of the invention is described.
Die Aufgabe betreffend die Blechplatine wird durch die in Patentanspruch 3 wiedergegebenen Merkmale gelöst.The object relating to the sheet metal board is achieved by the features set out in claim 3.
Eine erfindungsgemäße Blechplatine ist mit besonderem Vorteil als Karosserieblech zu verwenden. Der Übergang von dem einen auf das andere, in der Dicke erheblich unterschiedlich bemessene Blech verläuft nach einem sanften Kurvenverlauf. Ein Stufensprung ist nicht mehr vorhanden. Dabei ist die Anordnung so getroffen, daß sich an derA sheet metal board according to the invention is particularly advantageous to use as a body sheet. The transition from one sheet to the other, which is considerably different in thickness, follows a smooth curve. There is no longer a step change. The arrangement is such that the
Verbindungsnaht die Wanddicke allmählich bis auf die volle Wanddicke des anderen Bleches vergrößert. Der Übergang verläuft somit stetig, allmählich ohne Sprünge und Wellen an der Außenseite. An der Innenseite kann dagegen das oben weggedrückte Material nach einer Kurve oder Kurvenschar verlaufen, deren Krümmung stärker ist, da dieses hier weder optisch noch konstruktionsmäßig stört. In der Zeichnung ist die Erfindung - teils schematisch - beispielsweise veranschaulicht. Es zeigenJoining seam gradually increases the wall thickness to the full wall thickness of the other sheet. The transition is therefore continuous, gradually without jumps and waves on the outside. On the inside, on the other hand, the material pushed away at the top can run along a curve or family of curves, the curvature of which is stronger, since this does not interfere with the design or the appearance. In the drawing, the invention is illustrated - partly schematically - for example. Show it
Figur 1 einen Teilquerschnitt durch einen Dachrahmen eines Pkw, teils abgebrochen dargestellt und ohne Schraffuren,FIG. 1 shows a partial cross section through a roof frame of a car, partly broken away and without hatching,
Figur 2 einen Teilquerschnitt, ebenfalls teils abgebrochen dargestellt, im Übergangsbereich von einer Tür zumFigure 2 shows a partial cross section, also partially broken off, in the transition area from a door to
Dachrahmen eines Pkws, Figur 3 eine als „tailored blanks" ausgebildete Blechplatine gemäß dem Stand der Technik,Roof frame of a passenger car, FIG. 3 a sheet metal plate designed as “tailored blanks” according to the prior art,
Figur 4 ein Umformwerkzeug mit einem aus Oberteil und Unterteil bestehenden Formensatz, teils im Schnitt und abgebrochen dargestellt, Figur 5 eine Blechplatine nach ihrer Herstellung in einem erfindungsgemäßen Werkzeug und4 shows a forming tool with a set of molds consisting of an upper part and a lower part, partly in section and broken away, FIG. 5 shows a sheet metal blank after its production in a tool according to the invention and
Figur 6 eine erfindungsgemäße Blechplatine als Karosserieblech in einem Kraftfahrzeug eingebaut, teils abgebrochen dargestellt.Figure 6 installed a sheet metal plate according to the invention as a body sheet in a motor vehicle, shown partially broken.
In Figur 1 ist mit dem Bezugszeichen 1 ein Dach eines Pkws, mit 2 eine Staubdichtung und mit 3 eine Verkleidungsleiste bezeichnet. 4 stellt eine Scheibe und 5 eine Fensterführungsdichtung dar. Bei 6 ist ein Schließblech und bei 7 ein Türinnenblech als „tailored blank" angedeutet, während 8 eine innere Rahmenverkleidung darstellt. Bei 9 ist ein Kantenschutz mit Akustikdichtung vorgesehen, während 10 eine auf den Türrahmen geklebte Hauptdichtung darstellt.In Figure 1, the reference numeral 1 denotes a roof of a car, 2 a dust seal and 3 a trim strip. 4 shows a pane and 5 shows a window guide seal. A locking plate is indicated at 6 and a door inner plate at 7 as "tailored blank", while 8 represents an inner frame cladding. At 9 an edge protection with an acoustic seal is provided, while 10 is a glued on the door frame Main seal represents.
In Figur 2 erkennt man eine Fensterführungsschiene 12, ein Außeπblech 13 sowie wiederum ein als „tailored blank" ausgebildetes Türinnenblech 14. Mit 15 ist eine Türdichtung im Bereich der Regenrinne bezeichnet, während 16 einen Dachrahmen im Bereich der A-Säule darstellt. Mit 17 ist wiederum eine Hauptdichtung bezeichnet. Man erkennt aus Figur 1 , daß bei dieser Konstruktion das „tailored blank" durch Dichtung und dergleichen nach außen hin abgedeckt ist. Bei der Konstruktion nach Figur 2 ist dies nicht gegeben. In diesem Fall muß der Stufensprung nach innen zeigen. Hierbei können sich jedoch Dichtprobleme ergeben, da im Bereich des Stufensprunges die notwendigen Dichtungen zum Schutz von Staub, Wasser und Luft nicht vollständig anliegen. Dies ist deutlich aus Figur 3 zu erkennen, da hierbei die beiden eine geschweißte Blechplatine bildenden Bleche 18 und 19, die die Blechplatine als „tailored blank" 14 bilden, in ihren Wanddicken stark unterschiedlich ausgebildet sind und einen Stufenspruπg bei 20 bilden. Dadurch liegt eine Dichtung 21 imFIG. 2 shows a window guide rail 12, an outer sheet 13 and again a door inner sheet 14 designed as a “tailored blank”. 15 denotes a door seal in the area of the rain gutter, while 16 represents a roof frame in the area of the A-pillar again shows a main seal. It can be seen from FIG in this construction the "tailored blank" is covered to the outside by a seal and the like. This is not the case in the construction according to FIG. 2. In this case the step change must point inwards. However, sealing problems can arise here, since The seals required to protect dust, water and air are not fully in contact. This can be clearly seen from FIG. 3, since here the two sheets 18 and 19 forming a welded sheet metal plate, which form the sheet metal plate as "tailored blank" 14, in their wall thicknesses are very different and form a step at 20. As a result, a seal 21 is in the
Bereich dieses Stufensprunges 20 nicht mehr satt an. Vielmehr bildet sich hier ein etwa dreieckförmiger Hohlraum 22, in den Wasser und Staub eindringen können. Außerdem können sich in diesem Bereich gegebenenfalls Windgeräusche bilden.Area of this step 20 is no longer full. Rather, an approximately triangular cavity 22 is formed here, into which water and dust can penetrate. In addition, wind noise may form in this area.
Das erfindungsgemäße Werkzeug 23 besitzt einen Formensatz, der ein Oberteil 24 und ein Unterteil 25 aufweist. In das Ober- und Unterteil 24 und 25 sind Aussparungen zur Aufnahme der Bleche 18 bzw. 19 vorgesehen. Dabei ist eine derartige Anordnung getroffen worden, daß das Oberteil 24, beginnend im Bereich einer Schweißnaht 26 und der Ebene der Oberfläche 27 des Bleches 19 beginnen nach einer sanften Kurve 28 verlaufend bis auf die Oberfläche 29 des dickeren Bleches 18 ansteigt.The tool 23 according to the invention has a set of molds which has an upper part 24 and a lower part 25. In the upper and lower part 24 and 25 recesses for receiving the sheets 18 and 19 are provided. In this case, such an arrangement has been made that the upper part 24, beginning in the region of a weld seam 26 and the plane of the surface 27 of the sheet 19, begins to rise after a gentle curve 28 to the surface 29 of the thicker sheet 18.
An der Unterseite 30 des dünneren Bleches 19, und zwar ebenfalls im Bereich der Schweißnaht 26 beginnend ist das Unterteil 25 mit einer Ausnehmung 31 versehen, in die das durch den Stufensprung 20 gebildete und damit durch die Kurve 28 wegzudrückende Material hineinfließen kann. Deutlich ist aus Figur 5 mit gestrichelten Linien die Kontur 32 des dickeren Bleches 18 mit gestrichelten Linien und mit ausgezogenen Linien die Kontur nach der Umformung ersichtlich. Der Kurvenverlauf 28 entspricht der Kurve des Oberteils 24, während der Kurvenverlauf 31 der Kontur des Unterteils 25 entspricht. Deutlich erkennt man den sanften Verlauf der Kurve 28 und die stärke Krümmung der Kurve 31 im Bereich der Schweißnaht 26. Dieser buckeiförmige Bereich 31 wird nach innen verlagert. Nach dem Umformvorgang läßt sich die Dichtung 21 hohlraumfrei auf der Oberseite der Blechplatine anordnen. Der Hohlraum 22 ist verschwunden, da die Dichtung 21 nunmehr auch im Bereich des früheren Stufensprunges vollständig an der Blechkontur anliegt (Figur 6). Durch die Ausführung des Umformwerkzeugs gemäß Figur 4 werden die Anforderungen hinsichtlich der Dichtheit gegenüber Luft, Staub und Wasser vollständig erfüllt.On the underside 30 of the thinner sheet 19, also starting in the area of the weld seam 26, the lower part 25 is provided with a recess 31 into which the material formed by the step 20 and thus to be pushed away by the curve 28 can flow. The contour 32 of the thicker sheet 18 with dashed lines and with solid lines the contour after the forming can be clearly seen from FIG. 5 with dashed lines. The curve shape 28 corresponds to the curve of the upper part 24, during the Curve shape 31 corresponds to the contour of the lower part 25. The gentle course of curve 28 and the pronounced curvature of curve 31 in the area of weld seam 26 can be clearly seen. This hump-shaped area 31 is displaced inwards. After the forming process, the seal 21 can be arranged on the top of the sheet metal blank without any voids. The cavity 22 has disappeared since the seal 21 now also lies completely against the sheet metal contour in the area of the previous step (FIG. 6). The design of the forming tool according to FIG. 4 completely fulfills the requirements with regard to the tightness against air, dust and water.
Die in der Zusammenfassung, in der Beschreibung und in den Patentansprüchen beschriebenen sowie aus der Zeichnung ersichtlichen Merkmale können sowohl einzeln als auch in beliebigen Kombinationen für die Verwirklichung der Erfindung wesentlich sein. The features described in the summary, in the description and in the patent claims and evident from the drawing can be essential for realizing the invention both individually and in any combination.
BezuqszeichenlisteReference list
(1 ) Dach(1) roof
(2) Staubdichtung(2) dust seal
(3) Verkleidungsleiste (4) Scheibe(3) Trim strip (4) Washer
(5) Fensterführungsdichtung(5) Window guide seal
(6) Schließblech(6) Strike plate
(7) Türinnenblech(7) Inner door panel
(8) Rahmenverkleidung (9) Kantenschutz(8) Frame covering (9) Edge protection
(10) Hauptdichtung(10) main seal
(11) ~(11) ~
(12) Fensterführungsschiene(12) Window guide rail
(13) Außeπblech (14) Türinnenblech(13) outer sheet (14) inner door sheet
(15) Türdichtuπg(15) Door seal
(16) Dachrahmen(16) roof frame
(17) Hauptdichtung(17) main seal
(18) Blech (19) Blech(18) sheet (19) sheet
(20) Stufensprung(20) increment
(21) Dichtung(21) Seal
(22) Hohlraum(22) cavity
(23) Werkzeug (24) Oberteil(23) Tool (24) upper part
(25) Oberteil(25) top
(26) Schweißnaht(26) weld
(27) Oberfläche(27) surface
(28) Kurve (29) Oberfläche(28) curve (29) surface
(30) Unterseite(30) bottom
(31) Ausnehmung(31) recess
(32) Kontur (32) contour

Claims

Patentansprüche claims
1. Werkzeug zum Nachbearbeiten durch Umformen von mindestens zwei durch eine Stumpf Schweißnaht im Bereich eines Stufensprunges zu einer Blechplatine miteinander verbundenen1. Tool for reworking by reshaping at least two joined by a butt weld in the area of a step to a sheet metal plate
Blechen unterschiedlicher Dicke, insbesondere zur Verwendung als Karosseriebauteile in der Kfz-Industrie, mit einem aus Ober- und Unterteil bestehenden Formensatz, dadurch gekenn¬ zeichnet, daß ein Teil (24) des Formensatzes eine im Bereich eines Stufensprunges (20) beginnende, sich allmählich vertiefende und in Längsrichtung der Bleche (18, 19) allmählich bis auf die volle Wanddicke des dickeren der Bleche (18) ansteigende Vertiefung aufweist, während das andere Teil (25) eine im Bereich des Stufensprunges (20) beginnende, sich zunächst stärker vergrößernde und anschließend allmählich bis auf die Dicke des dicksten Bleches (18) verringerte Aussparung zur Aufnahme des beim Umformgang am Stufensprung (20) wegfließenden Materials aufweist.Sheets of different thicknesses, in particular for use as body components in the motor vehicle industry, with a set of molds consisting of an upper and lower part, characterized in that a part (24) of the set of molds gradually begins in the area of a step (20) deepening and in the longitudinal direction of the sheets (18, 19) gradually increasing to the full wall thickness of the thicker of the sheets (18), while the other part (25) begins in the area of the step (20), initially increasing and enlarging then has gradually reduced to the thickness of the thickest sheet (18) recess for receiving the material flowing away during the forming step at the step (20).
2. Werkzeug nach Anspruch 1, dadurch gekennzeichnet, daß die die Außenseite bildende Kurve (28) aus mehreren Kurvenabschnitten besteht, die allmählich, sanft verlaufen, während das andere Teil des Formensatzes (25) aus einem Kreisbogen mit anschließendem sanften Kurvenabschnitt besteht.2. Tool according to claim 1, characterized in that the curve forming the outside (28) consists of several curve sections which run gradually, gently, while the other part of the mold set (25) consists of a circular arc with a subsequent gentle curve section.
3. Blechplatiπe als Konstruktionsteil im Karosseriebau der Kfz- Industrie, bestehend aus mindestens zwei durch eine Stumpf Schweißnaht (26) miteinander verbundenen Blechen (18, 19) unterschiedlicher Dicke, dadurch gekennzeichnet, daß die Blechplatine an ihrer Ober(Außen-)seite im3. Blechplatiπe as a structural part in the bodywork of the automotive industry, consisting of at least two by a butt weld (26) interconnected sheets (18, 19) of different thickness, characterized in that the sheet metal plate on its upper (outer) side in
Schweißnahtbereich (26) nach einer sanften Kurve (28) bis auf die volle Dicke des dicksten Bleches (18) verläuft, während die Blechplatine an ihrer Unterseite buckeiförmig gestaltet ist, derart, daß sie im Bereich der Schweißnaht (26) einen nach einem Kreissektor verlaufenden Abschnitt aufweist, der durch eine sanfte, gestreckte Kurve in die Unterseite des dicksten Bleches (18) übergeht. Weld area (26) after a gentle curve (28) to the full thickness of the thickest sheet (18), while the The sheet metal plate is designed in the form of a hump on its underside, in such a way that it has a section in the region of the weld seam (26) which runs along a circular sector and merges into the underside of the thickest sheet (18) through a gentle, stretched curve.
PCT/EP1995/004918 1994-12-22 1995-12-13 Tool for reshaping without stock removal at least two metal sheets of different thickness joined by butt-welding in a stepped area into a plate for use in car body construction, and car body part made of at least two metal sheets WO1996019306A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU43439/96A AU4343996A (en) 1994-12-22 1995-12-13 Tool for reshaping without stock removal at least two metal sheets of different thickness joined by butt-welding in a stepped area into a plate for use in car body construction, and car body part made of at least two metal sheets

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19944445856 DE4445856C1 (en) 1994-12-22 1994-12-22 Tool for reworking by reshaping at least two sheets of different thicknesses which are connected to one another by a butt weld in the area of a step to form a sheet metal plate, in particular for use in body construction in the motor vehicle industry and by means of the tool body part consisting of at least two sheets
DEP4445856.8 1994-12-22

Publications (1)

Publication Number Publication Date
WO1996019306A1 true WO1996019306A1 (en) 1996-06-27

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PCT/EP1995/004918 WO1996019306A1 (en) 1994-12-22 1995-12-13 Tool for reshaping without stock removal at least two metal sheets of different thickness joined by butt-welding in a stepped area into a plate for use in car body construction, and car body part made of at least two metal sheets

Country Status (3)

Country Link
AU (1) AU4343996A (en)
DE (1) DE4445856C1 (en)
WO (1) WO1996019306A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100236316A1 (en) * 2009-03-23 2010-09-23 Thyssenkrupp Steel Europe Ag Sheet Metal Blank Having a Homogeneous Thickness Transition

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3330921B2 (en) * 2000-03-13 2002-10-07 菊池プレス工業株式会社 Tailored blank articles and method for producing the same
DE102009053534B4 (en) 2009-11-18 2019-12-19 Elisabeth Braun Device and method for forming and / or tempering sheet metal components and sheet metal part produced therewith
DE102011009890A1 (en) * 2011-01-31 2012-08-02 Benteler Automobiltechnik Gmbh Method for producing sheet metal components and forming tool

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0279866A1 (en) * 1986-12-22 1988-08-31 Thyssen Stahl Aktiengesellschaft Manufacturing method for a shaped body of sheet metal pieces with different thicknesses
EP0583188A1 (en) * 1992-08-04 1994-02-16 Sollac Process and arrangement for butt welding at least two steel sheets

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0279866A1 (en) * 1986-12-22 1988-08-31 Thyssen Stahl Aktiengesellschaft Manufacturing method for a shaped body of sheet metal pieces with different thicknesses
EP0583188A1 (en) * 1992-08-04 1994-02-16 Sollac Process and arrangement for butt welding at least two steel sheets

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100236316A1 (en) * 2009-03-23 2010-09-23 Thyssenkrupp Steel Europe Ag Sheet Metal Blank Having a Homogeneous Thickness Transition
CN101844185A (en) * 2009-03-23 2010-09-29 蒂森克虏伯钢铁欧洲股份公司 Metal slabs with thickness transition part
CN101844185B (en) * 2009-03-23 2014-04-09 蒂森克虏伯钢铁欧洲股份公司 Sheet metal blank having thickness transition part
US9908166B2 (en) * 2009-03-23 2018-03-06 Thyssenkrupp Steel Europe Ag Sheet metal blank having a homogeneous thickness transition

Also Published As

Publication number Publication date
AU4343996A (en) 1996-07-10
DE4445856C1 (en) 1996-06-27

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