EP2845662B1 - Presse und Verfahren zur Herstellung eines Profils - Google Patents

Presse und Verfahren zur Herstellung eines Profils Download PDF

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Publication number
EP2845662B1
EP2845662B1 EP13182920.2A EP13182920A EP2845662B1 EP 2845662 B1 EP2845662 B1 EP 2845662B1 EP 13182920 A EP13182920 A EP 13182920A EP 2845662 B1 EP2845662 B1 EP 2845662B1
Authority
EP
European Patent Office
Prior art keywords
profile
bulge
press
upper die
workpiece
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.)
Active
Application number
EP13182920.2A
Other languages
English (en)
French (fr)
Other versions
EP2845662A1 (de
Inventor
Gökhan Dogan
Yavuz Kapsiz
Fatih Önhon
Emrah Bayrak
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.)
Ford Otomotiv Sanayi AS
Ford Motor Co
Original Assignee
Ford Otomotiv Sanayi AS
Ford Motor Co
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 Ford Otomotiv Sanayi AS, Ford Motor Co filed Critical Ford Otomotiv Sanayi AS
Priority to EP13182920.2A priority Critical patent/EP2845662B1/de
Publication of EP2845662A1 publication Critical patent/EP2845662A1/de
Application granted granted Critical
Publication of EP2845662B1 publication Critical patent/EP2845662B1/de
Active legal-status Critical Current
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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
    • B21D22/21—Deep-drawing without fixing the border of the blank
    • 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
    • B21D47/00—Making rigid structural elements or units, e.g. honeycomb structures
    • B21D47/01—Making rigid structural elements or units, e.g. honeycomb structures beams or pillars
    • 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
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/06—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/88—Making other particular articles other parts for vehicles, e.g. cowlings, mudguards

Definitions

  • the present invention relates to a press and a method for pressing a profile, as well as a method of manufacturing a vehicle. It is known and widely used to generate a profile from a sheet metal by using a press comprising an upper die and a lower die. The dies transfer their contours to the workpiece while closing the press.
  • US 4926676 A shows a forming process for producing sharp corners in sheet metal, and a press brake useful in carrying out such process.
  • the press brake involves a male forming die incorporating a nipple for extruding the sheet metal stock material into the adjacent region defined by the female coining die for forming a sharp corner in the workpiece.
  • JP S59220227 shows a forming method of a thin plate.
  • grooves are formed at specified positions of four faces of a hole of a forming die, and pressing tools that fit to the grooves are provided.
  • Recessed parts are formed at specified positions on four faces of a punch, and the periphery of the thin plate to be formed is pressed between a flat part of the die and a wrinkle presser. Then, it is drawn by the punch and a formed product is obtained. A straight side of the formed product is bent to the inside by the pressing tool and a pressure ram. The pressing tool is returned to the groove and the presser is raised and the formed product is removed. The straight side of the formed product is returned to a specified shape by spring back.
  • EP 1752984 A2 relates to a clamping plate, a cartridge case, an information medium, a mold, and a method of manufacturing the clamping plate.
  • the clamping plate includes a main body comprising: a recess circular in plan view formed in a central portion thereof, the recess having an inner peripheral wall inclined such that the recess is gradually reduced in diameter from an opening toward a bottom thereof; and an outer peripheral portion formed by an annular plate body such that the outer peripheral portion surrounds the opening, wherein the main body has a groove formed at an imaginary intersecting portion between an imaginary extended surface of a rear surface of the outer peripheral portion and an imaginary extended surface of a rear surface of the inner peripheral wall, along an imaginary line of intersection of the two imaginary extended surfaces the groove being recessed from the two imaginary extended surfaces.
  • a press according to claim 1 is provided.
  • the press includes an upper die and a lower die.
  • the upper die comprises at least one bulge at a front section.
  • the bulge protrudes from an intermediate portion and is convexly formed with a bulge radius.
  • the bulge merges into a transition radius at the intermediate portion, wherein the bulge radius and the transition radius have a ratio in a range of 2/3 to 1/2.
  • the press allows generating a profile with smaller tolerances. Additional processes are not necessary for achieving the desired shape.
  • the convex contour of the bulge prevents from increasing tensions inside the profile and from the formation of cracks. By the bulge an impression can be generated.
  • the bulge has two functions. Additional means for fixing the workpiece are not necessary. Costs can be reduced.
  • the at least one bulge is arranged at an edge of the upper die.
  • a method of manufacturing a profile according to claim 3 is provided.
  • the profile obtained includes at least one web and at least one flange, wherein the flange is substantially arranged transversal to the web.
  • the profile comprises at least one impression accommodated at a junction portion.
  • the profile is U-shaped.
  • a method of manufacturing a vehicle is provided.
  • the vehicle obtained includes at least one such profile, in particular as a side member.
  • the benefits of the profile will benefit the vehicle.
  • FIG. 1 shows an inventive press 10 while performing a pressing method 40.
  • the inventive press 10 includes an upper die 11 and a lower die 12. Between the upper die 11 and the lower die 12 a workpiece 13 is provided for performing the inventive pressing method 40.
  • the workpiece 13 is a thick sheet metal.
  • For closing the press 10 the upper die 11 is moved in a pressing direction 41.
  • For treating the workpiece 13 the upper die 11 is moved in the pressing direction 41.
  • the workpiece 13 is forced to change its shape according to the shape of the upper die 11 and the lower die 12.
  • the workpiece 13 becomes an inventive profile 20.
  • the press 10 is designed so as to form a U-profile 20.
  • the press 10 is designed for forming an I-profile or a T-profile etc.
  • the profile 20 obtained by the present invention includes at least one web 21 and at least one flange 22, wherein the web 21 is substantially accommodated transversal to the flange 21.
  • the upper die 11 of the inventive press 10 comprises a front section 19.
  • An exemplary embodiment of the front section 19 is shown in Fig. 2 .
  • the upper die 11 comprises at least one bulge 16.
  • the at least one bulge 16 is accommodated at an edge of the front section 19.
  • the bulge 16 has a height 15.
  • the bulge 16 protrudes from an intermediate portion 26 of the upper die 11 with the height 15.
  • the upper die 11 comprises a sidewall 27.
  • the sidewall 27 is inclined in a wall angle 14 as compared to the pressing direction.
  • the bulge 16 is convexly formed with a bulge radius 17.
  • the bulge 16 merges into a transition radius 18 at the intermediate portion 26 of the upper die 11.
  • the bulge radius 17 and the transition radius 18 have a ratio in a range of 2/3 to 1/2.
  • the bulge radius 17 may be 9 mm, for example.
  • the transition radius 18 may be 15 mm, for example.
  • the height 15 of the bulge 16 may be 7.5 mm, for example.
  • the wall angle 14 may be 2°, for example.
  • the upper die 11 is moved toward the workpiece 13 while the workpiece 13 is arranged on the lower die 12.
  • the front section 19 of the upper die 11 shows in the pressing direction 41.
  • the bulge 16 fixes the workpiece 13 before the bending process starts by continuing the movement of the upper die 11 in pressing direction 41.
  • the bulge 16 strains the workpiece 13.
  • the workpiece 13 is held in position and prevented from a springback.
  • the bulge 16 touches and squeezes the workpiece 13 slightly.
  • the closing of the press 10 the workpiece 13 is completely formed by the upper die 11.
  • the height 15 of the bulge 16 projects into the inside contour of the workpiece 13. Thereby, an impression 25 is generated in the workpiece 13 while closing the press 10.
  • Fig. 3 shows an embodiment of the obtained profile 20 in a cross-sectional view.
  • Said profile 20 comprises at least one web 21 and one flange 22.
  • the web 21 is substantially accommodated transversal to the flange 21.
  • the profile 20 has a U-shape as shown in Fig. 3 .
  • the area where the web 11 and the flange 22 merge is defined as a junction portion 28.
  • Said profile 20 comprises at least one impression 25 at the junction portion 28.
  • the at least one impression 25 is accommodated at an inner side 23 of the profile 20.
  • the inner side 23 is defined as the side enclosed by the flange 22.
  • the outer side 24 is defined as the side, which is not enclosed by a flange 22.
  • a double T-profile comprises two inner sides 23 and no outer side 24.
  • the profile 20 includes one web 21, two flanges 22, two junction portions 25 and two impressions 25 as shown in Fig. 3 .
  • Fig. 4 shows an exemplary embodiment of the obtained vehicle 30.
  • Said vehicle 30 includes at least one said profile 20.
  • the profile 20 may be arranged in a frame 32 of the vehicle.
  • the profile 20 is a side member of the frame 32.
  • the vehicle 30 is a lorry respectively a truck.
  • the present vehicle 30 according to Fig. 4 is a truck including a lead frame 32 and a passenger cabin 31.
  • the shown vehicle 30 comprises also wheel guards 33 fixed to the lead frame 32.

Landscapes

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

Claims (5)

  1. Presse (10), die ein oberes Gesenk (11) und ein unteres Gesenk (12) enthält, wobei das obere Gesenk (11) mindestens eine Auswölbung (16) an einem vorderen Abschnitt (19) umfasst, wobei die Auswölbung (16) von einem Zwischenteil (26) ragt und mit einem Auswölbungsradius (17) konvex ausgebildet ist, dadurch gekennzeichnet, dass die Auswölbung (16) am Zwischenteil (26) in einen Übergangsradius (18) übergeht, wobei der Auswölbungsradius (17) und der Übergangsradius (18) ein Verhältnis in einem Bereich von 2/3 bis 1/2 aufweisen.
  2. Presse (10) nach Anspruch 1, dadurch gekennzeichnet, dass die mindestens eine Auswölbung (16) an einem Rand des oberen Gesenks (11) angeordnet ist.
  3. Verfahren zur Herstellung eines Profils (20), wobei das Profil (20) mindestens einen Steg (21) und mindestens einen Flansch (22), der im Wesentlichen quer zu dem Steg (21) angeordnet ist, enthält, wobei das Profil (20) ferner mindestens einen Eindruck (25) umfasst, der an einem Verbindungsteil (28) davon aufgenommen ist, gekennzeichnet durch Erzeugen des Profils (20) mittels einer Presse nach Anspruch 1 oder 2.
  4. Verfahren zur Herstellung eines Fahrzeugs (30), dadurch gekennzeichnet, dass es die Herstellung mindestens eines Profils (20) nach dem Verfahren von Anspruch 3 umfasst.
  5. Verfahren zur Herstellung eines Fahrzeugs (30) nach Anspruch 4, dadurch gekennzeichnet, dass das mindestens eine Profil (20) ein Längsträger ist.
EP13182920.2A 2013-09-04 2013-09-04 Presse und Verfahren zur Herstellung eines Profils Active EP2845662B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP13182920.2A EP2845662B1 (de) 2013-09-04 2013-09-04 Presse und Verfahren zur Herstellung eines Profils

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP13182920.2A EP2845662B1 (de) 2013-09-04 2013-09-04 Presse und Verfahren zur Herstellung eines Profils

Publications (2)

Publication Number Publication Date
EP2845662A1 EP2845662A1 (de) 2015-03-11
EP2845662B1 true EP2845662B1 (de) 2018-11-14

Family

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Family Applications (1)

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EP13182920.2A Active EP2845662B1 (de) 2013-09-04 2013-09-04 Presse und Verfahren zur Herstellung eines Profils

Country Status (1)

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EP (1) EP2845662B1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105522049B (zh) * 2016-01-19 2018-02-09 张家港市旭骏机械部件有限公司 一种汽车天窗t型压条的成型设备
CN107377778B (zh) * 2017-09-06 2020-06-02 北京小米移动软件有限公司 一种冲头及冲压装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59220227A (ja) * 1983-05-30 1984-12-11 Mitsubishi Electric Corp 薄板の成形方法
US4926676A (en) * 1987-09-04 1990-05-22 Lane & Roderick, Inc. Forming process for producing sharp corners in sheet metal
JP2007048364A (ja) * 2005-08-09 2007-02-22 Tdk Corp チャッキングプレート、カートリッジケース、情報記録媒体、金型およびチャッキングプレート製造方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

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EP2845662A1 (de) 2015-03-11

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