WO1999048631A1 - Matrice d'emboutissage, procede d'emboutissage dans lequel ladite matrice est utilisee et recipient embouti forme au moyen de ladite matrice - Google Patents

Matrice d'emboutissage, procede d'emboutissage dans lequel ladite matrice est utilisee et recipient embouti forme au moyen de ladite matrice Download PDF

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Publication number
WO1999048631A1
WO1999048631A1 PCT/JP1999/001310 JP9901310W WO9948631A1 WO 1999048631 A1 WO1999048631 A1 WO 1999048631A1 JP 9901310 W JP9901310 W JP 9901310W WO 9948631 A1 WO9948631 A1 WO 9948631A1
Authority
WO
WIPO (PCT)
Prior art keywords
container
drawing die
blank
friction reducing
drawn
Prior art date
Application number
PCT/JP1999/001310
Other languages
English (en)
Japanese (ja)
Inventor
Yasuyuki Ikeda
Keiichi Shimizu
Original Assignee
Toyo Kohan Co., Ltd.
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 Toyo Kohan Co., Ltd. filed Critical Toyo Kohan Co., Ltd.
Priority to AU28523/99A priority Critical patent/AU2852399A/en
Publication of WO1999048631A1 publication Critical patent/WO1999048631A1/fr

Links

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
    • B21D22/22—Deep-drawing with devices for holding the edge of the blanks
    • 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
    • B21D24/00—Special deep-drawing arrangements in, or in connection with, presses

Definitions

  • the present invention relates to a drawing die, a drawing method using the drawing die, and a drawing container formed by using the drawing die. More specifically, a drawing die capable of suppressing the occurrence of a portion (ear) in which the height of the container is higher than other portions during drawing, a drawing method using the drawing die, a drawing method using the drawing die, And a drawn container formed using the drawing die.
  • the inventors of the present invention have found that, for the purpose of reducing the occurrence of unnecessary portions in blanking, the generation of unnecessary portions is most likely to occur when blanking 5 is performed using a hexagonal shape with its corners rounded at a certain radius of curvature. It has been found that it is possible to continuously form a cylindrical container from a long metal plate with a high yield, but it is possible to continuously form a cylindrical container from a long metal plate. Even with the ranking, it was difficult to sufficiently suppress the occurrence of ears due to the rolling anisotropy of the metal plate.
  • the present invention relates to a drawing die capable of suppressing the occurrence of ears during drawing, a drawing method using the drawing die, and a method of suppressing the occurrence of ears formed using the drawing die. It is a technical object to provide a drawn drawing container. Disclosure of the invention
  • the die of the present invention is characterized in that the wrinkle suppressing surface is provided with a friction reducing portion.
  • the die is characterized in that the friction reducing portion is provided discontinuously in the circumferential direction of the wrinkle suppressing surface.
  • the friction reducing portion is used to suppress wrinkles that occur when the blank is drawn and the height of the container becomes higher than other portions (ears). Desirably, it is provided on a surface portion.
  • this die is characterized in that the friction reducing portion is a plurality of grooves provided in a direction perpendicular to the direction in which the blank is squeezed.
  • the friction reducing portions are provided radially at approximately every 60 ° on the wrinkle suppressing surface, and it is also preferable that the friction reducing portions are radially provided at approximately every 90 ° at the wrinkle suppressing surface.
  • the drawing method of the present invention is a drawing method for drawing a blank obtained by punching from a long rolled metal plate, wherein the drawing die is used.
  • the generation of the ears is suppressed by performing the drawing process so that a portion where an ear is generated when the blank is processed into a drawn container is brought into contact with the friction reducing portion.
  • the drawing method of the present invention is characterized in that a long-rolled metal plate has a hexagonal shape whose two opposite sides are substantially parallel to each other as a basic shape, and each corner around the hexagonal shape is an arc.
  • the blank is punched out so that a pair of two substantially parallel sides of the hexagon that are opposite to each other form an angle of 80 to 100 ° with respect to the rolling direction of the metal plate.
  • the drawing container of the present invention is characterized by using the drawing method according to claim 8 or 9 (5).
  • the drawn can and the re-drawn can mean both drawn only and those formed by drawing and ironing including ironing (the same applies hereinafter).
  • FIG. 1 is a schematic view showing an example of a drawing die having a friction reducing portion provided on a wrinkle suppressing surface according to the present invention.
  • FIG. 2 is a schematic perspective view of a conventional drawing die.
  • FIG. 3 is a schematic diagram showing a state where a metal plate is drawn.
  • FIG. 4 is a schematic diagram showing a state where ears of the squeeze container are generated.
  • FIG. 5 shows another example of a drawing die having a friction reducing portion provided on the wrinkle suppressing surface of the present invention.
  • Figure 6 shows a roughly hexagonal blank from a metal plate.
  • the present invention is intended to suppress the occurrence of ears when a metal plate is formed into a container by drawing, and to reduce the height of the container when drawing the blank on the wrinkle suppressing surface of the drawing die.
  • a circular opening 21 and a wrinkle suppressing surface 22 are provided. From 2 to 1 the drawing dies with shoulders 2 and 3 transitioning along the curve of local radius R
  • the drawing process is performed as shown in Fig. 3. That is, the metal plate 3 punched into a circular blank is drawn so that its center coincides with the center of the drawing die 2.
  • the punch 5 is placed on the wrinkle-suppressing surface 2 2 of the processing die 2.
  • the punch 5 is abutted on the punch 5 so that the punch 5 can penetrate freely, and the punch 5 is lowered from the through hole 4 1 in the direction of the arrow.
  • the metal plate 3 is pressed into the opening 21 of the drawing die 2 and drawn to form the metal plate 3 into a cylindrical container.
  • a shoulder 23 is provided from the wrinkle suppressing surface 22 to the opening 21, which transitions along a curve of the radius of curvature R.
  • a load that suppresses the generation of wrinkles on the metal plate 3 via the blank holder 1 (Wrinkle suppressing load) is applied.
  • a first object of the present invention is to provide a drawing die for suppressing generation of ears during drawing.
  • the drawing die of the present invention is applied to a case where a rolled metal plate is punched into a normal circular blank, and a hexagonal base is used to save a portion discarded as a scrap portion in blanking.
  • a certain range of radius of curvature There are two ways to apply when punching into a roughly hexagonal blank that blanks in a rounded shape. First, a description will be given of a drawing die used when punching a normal circular blank.
  • the material composition of the metal plate used hot rolling conditions, cold rolling conditions, annealing conditions, etc.
  • four or six ears may be generated.
  • the position where the ears are generated can be controlled so as to be generated at a position at a substantially constant angle with respect to the rolling direction of the metal plate.
  • a large amount of lubricant is applied to the metal plate and formed.
  • a plurality of grooves are provided on the wrinkle suppressing surface of the drawing die as a means for reducing friction only on the wrinkle suppressing surface portion of the drawing die where the metal plate in the portion where the ear is generated comes into contact. It has been found that reducing the area of contact between the metal plate and the drawing die is most effective.
  • an ear is generated when a metal plate is formed into a drawing container on a wrinkle suppressing surface 12 having an opening 11.
  • a plurality of grooves 13 (Fig. 1 shows the case where five grooves are provided) are formed in the direction perpendicular to the direction in which the blank is squeezed. (Parallel to the circumference of the opening).
  • a certain angle representing the area where the groove is provided Is preferably 30 to 60 °, more preferably 35 to 55 °. If six ears are generated, a groove centered on the direction in which the ears are generated should be provided approximately every 60 °.
  • the range of the fixed angle representing the range in which the groove is provided is preferably 15 to 45 °, and more preferably 20 to 40 °. When grooves are provided outside these ranges
  • No. 5 is not sufficiently effective in suppressing ear development.
  • the width and number of the grooves depend on the amount of the lubricant applied to the metal plate or the die and the wrinkle suppressing load to be applied, but it is preferable to provide 3 to 10 grooves with a width of 2 to 5 mm. If the width of the groove is less than 2 mm, it is difficult to sufficiently suppress the occurrence of ears even if one or more grooves are provided. On the other hand, if the groove width exceeds 5 mm, flaws may occur on the side wall of the molded container. In addition, if the number of grooves is less than 3, it is difficult to sufficiently suppress the occurrence of ears, and if more than 1 groove is provided, a sufficient container height cannot be obtained.
  • the height is lower than other parts, which is not desirable.
  • the groove depth depends on the processing conditions, but when machining a material with a plate thickness of about 0.2 mm, the friction is sufficiently reduced if it is 0.05 mm or more, preferably 0.1 mm or more. .
  • the upper limit of the depth of the groove is not particularly limited, but is preferably 1 mm or less from the point i for ease of processing.
  • a fixed angle 54 representing the range in which the groove is to be set is set approximately every 60 ° centering on the direction 55 where the height of the six containers is higher than the other parts.
  • the range of the fixed angle 54 representing the range in which the groove is provided, and the preferable range of the width, the number and the depth of the groove 53 are as described above when forming and forming the cylindrical container using a normal drawing die. As the same range as the dice used when 6 ears are generated
  • the friction reducing section is provided on the drawing die, but the friction reducing section is It may be provided on the rank holder.
  • the friction reducing portion may be provided on both the drawing die and the blank holder.
  • the occurrence of ears is suppressed by providing a friction reducing portion at a portion of the wrinkle suppressing surface of the drawing die where the ears are generated.
  • the wrinkling of the drawing die is conversely performed. It is also possible to increase the height of the container other than where the ears are generated by reducing the height of the container other than where the ears are generated by providing a friction increasing part at the part other than the part where the ears generate ⁇ .
  • a friction increasing portion may be provided on both the blank holder and the drawing die and the blank holder.
  • the friction increasing portion can be formed, for example, by making the surface of the friction increasing portion rougher than a portion other than the friction increasing portion.
  • ordinary surface roughening means such as mechanical grinding and chemical etching can be used.
  • the metal plate applied to the drawing die of the present invention includes a steel plate, a copper plate, a copper alloy plate, an aluminum plate, an aluminum alloy plate, a stainless steel plate, and at least one metal such as nickel, tin, and zinc. Species, and at least two of these I? Plated metal plates coated with an alloy consisting of the above metals, or surface-treated metal plates with a chemical conversion coating formed by chromic acid treatment or phosphoric acid treatment, or an oxide coating formed by steam treatment, etc. Further, an organic resin-coated metal plate in which an organic resin layer is provided on any one of the above-mentioned metal plates can be used.
  • Resin consisting of a low-carbon cold-rolled steel sheet with a thickness of 0.18 mm and a polyethylene terephthalate film with a thickness of 25 on one side, and a polyethylene terephthalate film with a thickness of 17 m on the other side.
  • a substantially hexagonal blank shown in Fig. 6 was punched out of the coated steel sheet to make a test piece. That is, blanking was performed so that a pair of parallel two sides of a substantially hexagon was parallel to the rolling direction of the steel sheet.
  • the shape was rounded with (R).
  • a test piece made of this approximately hexagonal resin-coated steel sheet was placed on a 17 m-thick polyethylene terephthalate film laminated surface on the outer side of the drawn container, with a drawn diameter of 10 lmm and a shoulder.
  • the grooves indicated by sample numbers 1 to 11 in Table 1 were drilled every 60 ° on the wrinkle suppressing surface of the drawing die with a local radius of 0.5 mm.
  • a wrinkle suppressing load of 6.5 ton was applied to form a drawn container.
  • the container height of the part (six places) where the container height of the obtained squeezed container was higher than the other parts was measured, and the maximum value was set as the maximum height.
  • the container height was measured at the lower part of the container (six places) between the parts where the container height was higher than the other parts, and the lowest value was taken as the minimum height.
  • a circular blank having a diameter of 166 mm was punched out of the same resin-coated steel sheet as in Example 1 to obtain a test piece. Circular blank test specimens were placed in a 17 m thick polyethylene terephthalate
  • the drawing die of the present invention is provided with a friction reducing portion on the wrinkle suppressing surface of the drawing die, where a portion (ear) where the container height becomes higher than other portions when the blank is drawn is formed.

Landscapes

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

Abstract

L'invention concerne une matrice d'emboutissage pouvant supprimer les oreilles lors de l'emboutissage, un procédé d'estampage dans lequel ladite matrice est utilisée et un récipient embouti formé au moyen de ladite matrice et dans lequel les oreilles sont supprimées. Des pièces de réduction du frottement sont prévues sur des parties de prévention de plis (12) de la matrice d'emboutissage (1) dans lesquelles des parties (oreilles) se trouvant plus haut sur la hauteur du récipient que les autres parties apparaissent lors de l'emboutissage de flans, un récipient embouti (40) étant formé au moyen de ladite matrice d'emboutissage.
PCT/JP1999/001310 1998-03-23 1999-03-17 Matrice d'emboutissage, procede d'emboutissage dans lequel ladite matrice est utilisee et recipient embouti forme au moyen de ladite matrice WO1999048631A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU28523/99A AU2852399A (en) 1998-03-23 1999-03-17 Drawing die, drawing method using drawing die, and drawn container formed using drawing die

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP10/92261 1998-03-23
JP9226198 1998-03-23

Publications (1)

Publication Number Publication Date
WO1999048631A1 true WO1999048631A1 (fr) 1999-09-30

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1999/001310 WO1999048631A1 (fr) 1998-03-23 1999-03-17 Matrice d'emboutissage, procede d'emboutissage dans lequel ladite matrice est utilisee et recipient embouti forme au moyen de ladite matrice

Country Status (2)

Country Link
AU (1) AU2852399A (fr)
WO (1) WO1999048631A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012140266A1 (fr) * 2011-04-15 2012-10-18 Ball Packaging Europe Gmbh Procédé et dispositif de fabrication de contenants métalliques ouverts sur une face
WO2014057737A1 (fr) 2012-10-10 2014-04-17 東洋鋼鈑株式会社 Procédé permettant de fabriquer un récipient cylindrique
US20170050232A1 (en) * 2015-08-20 2017-02-23 Anheuser-Busch, Llc Cupper draw pad

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02112830A (ja) * 1988-10-19 1990-04-25 Kobe Steel Ltd Ａｌ合金硬質板材の深絞り成形方法
JPH0788569A (ja) * 1993-09-17 1995-04-04 Nippon Steel Corp イヤリングが著しく小さい絞り成形法
JPH07112575B2 (ja) * 1986-10-30 1995-12-06 日本電装株式会社 円筒絞り加工方法
JP2507311Y2 (ja) * 1995-05-01 1996-08-14 三菱アルミニウム株式会社 円筒深絞り成形用工具

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07112575B2 (ja) * 1986-10-30 1995-12-06 日本電装株式会社 円筒絞り加工方法
JPH02112830A (ja) * 1988-10-19 1990-04-25 Kobe Steel Ltd Ａｌ合金硬質板材の深絞り成形方法
JPH0788569A (ja) * 1993-09-17 1995-04-04 Nippon Steel Corp イヤリングが著しく小さい絞り成形法
JP2507311Y2 (ja) * 1995-05-01 1996-08-14 三菱アルミニウム株式会社 円筒深絞り成形用工具

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012140266A1 (fr) * 2011-04-15 2012-10-18 Ball Packaging Europe Gmbh Procédé et dispositif de fabrication de contenants métalliques ouverts sur une face
WO2014057737A1 (fr) 2012-10-10 2014-04-17 東洋鋼鈑株式会社 Procédé permettant de fabriquer un récipient cylindrique
JP2014076462A (ja) * 2012-10-10 2014-05-01 Toyo Kohan Co Ltd 円筒容器の製造方法
CN104718031A (zh) * 2012-10-10 2015-06-17 东洋钢钣株式会社 圆筒容器的制造方法
KR20150068354A (ko) 2012-10-10 2015-06-19 도요 고한 가부시키가이샤 원통 용기의 제조 방법
CN104718031B (zh) * 2012-10-10 2019-04-19 东洋钢钣株式会社 圆筒容器的制造方法
US10441991B2 (en) 2012-10-10 2019-10-15 Toyo Kohan Co., Ltd Method of manufacturing cylindrical container
US20170050232A1 (en) * 2015-08-20 2017-02-23 Anheuser-Busch, Llc Cupper draw pad
US20180236525A1 (en) * 2015-08-20 2018-08-23 Anheuser-Busch, Llc Cupper Draw Pad
JP2018523582A (ja) * 2015-08-20 2018-08-23 アンハイザー−ブッシュ リミテッド ライアビリティ カンパニーＡｎｈｅｕｓｅｒ−Ｂｕｓｃｈ，Ｌｌｃ カッピング用絞りパッド
US10807139B2 (en) * 2015-08-20 2020-10-20 Anheuser-Busch, Llc Cupper draw pad

Also Published As

Publication number Publication date
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