WO1999048631A1 - Drawing die, drawing method using drawing die, and drawn container formed using drawing die - Google Patents

Drawing die, drawing method using drawing die, and drawn container formed using drawing die Download PDF

Info

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
French (fr)
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/en

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

A drawing die capable of suppressing the occurrence of earings in drawing, a drawing method using the drawing die, and a drawn container which is formed using the drawing die and in which the occurrence of earings is suppressed, wherein friction reducing parts are provided on the portions of the wrinkle preventing surfaces (12) of the drawing die (1) where portions (earings) higher in container height than the other portions occur when a blank is drawn, and a drawn container (40) is formed using the drawing die (1).

Description

明 細 書 絞り加工用ダイス、 その絞り加工用ダイスを用いる絞り加工方法、 およびその絞 り加工用ダイスを用いて成形した絞り容器 Description Drawing Dies, Drawing Method Using the Drawing Dies, and Drawing Containers Formed Using the Drawing Dies
" "
技術分野  Technical field
本発明は、 絞り加工用ダイス、 その絞り加工用ダイスを用いる絞り加工方法、 およびその絞り加工用ダイスを用いて成形した絞り加工容器に関する。 より詳細 には、 絞り加工時に容器高さが他の部分より高くなる部分 （耳） の発生を抑制す ί θ ることが可能な絞り加工用ダイス、 その絞り加工用ダイスを用いる絞り加工方法、 およびその絞り加工用ダイスを用いて成形した絞り加工容器に関する。 背景技術  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. Background art
圧延された長尺の金属板から容器を絞り加工する場合、 金属板から打ち抜かれ5" たブランクを絞り容器に成形加工するが、 得られた絞り容器においては、 金属板 の圧延の異方性に基づいて、 容器高さが他の部分より高くなる部分 （耳） が必然 的に発生し、 容器高さが不揃いになることは避けられない。 この不揃い部分を切 り捨てることにより一定の容器高さにするが、 切り捨て部分を可能な限り少なく することは、 容器の大量生産における歩留まりの向上に重大な影響を与える。  When drawing a container from a rolled long metal plate, a blank punched from the metal plate and punched 5 "is formed into a drawn container. In the obtained drawn container, the anisotropy of rolling of the metal plate is obtained. Inevitably, there will be a part (ear) where the height of the container is higher than the other parts, and the height of the container will not be uniform. Making it as tall as possible but with as little truncation as possible has a significant impact on improving yields in mass production of containers.
ΖΌ また、 長尺の金属板から円板などのブランクを打ち抜く場合、 打ち抜かれるブ ランク同士が千鳥状になるように配列し、 隣接するブランク同士の間隙となる不 要部分が最も少なくなるように配列しても、 略三角形の不要部分がスクラップ部 分として必然的に生じる。 そのため、 長尺の金属板から円板ブランクを連続的に 打ち抜き、 引き続いて円筒容器に成形加工する場合、 スクラップ部分として捨て られる部分は決して少ないものではなく、 容器の製造歩留まりに重大な影響を与 えている。 したがって、 上記のように長尺の金属板から円筒容器を連続的に成形 加工する場合においても、 このスクラップ部分を減少させ、 容器の製造歩留まり を向上させることは、 容器の価格を低減させるためにも極めて重要である。 打 ち When blanks, such as discs, are punched from a long metal plate, the blanks to be punched are arranged in a staggered manner, so that the unnecessary portions that become gaps between adjacent blanks are minimized. Even if they are arranged, a substantially triangular unnecessary part is inevitably generated as a scrap part. For this reason, when continuously punching a disk blank from a long metal plate and subsequently forming it into a cylindrical container, the amount discarded as scrap is not small, and it has a significant effect on the container production yield. I have. Therefore, a cylindrical container is continuously formed from a long metal plate as described above. Even in the case of processing, reducing this scrap and improving the production yield of containers is extremely important for reducing the price of containers.
本発明者等は、 ブランキングにおける不要部分の発生率の低減を目的として、 六角形を基本とし、 一定範囲の曲率半径でその角部を丸めた形状でブランキング 5 すると不要部分の発生が最も少なくなり、 かつ絞り加工における耳の発生が抑制 され、 高歩留まりで長尺の金属板から円筒容器を連続的に成形加工することが可 能であることを見出したが、 この略六角形のブランキングをもってしても、 金属 板の圧延異方性に基づく耳の発生を十分に抑制することは困難であった。  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.
本発明は、 絞り加工時に耳の発生を抑制することが可能な絞り加工用ダイス、 1 0 その絞り加工用ダイスを用いる絞り加工方法、 およびその絞り加工用ダイスを用 いて成形した耳発生が抑制された絞り加工容器を提供することを技術課題とする。 発明の開示  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
本発明のダイスは、 しわ抑え面に摩擦軽減部を設けてなることを特徴とする。  The die of the present invention is characterized in that the wrinkle suppressing surface is provided with a friction reducing portion.
I？ そしてこのダイスは、 摩擦軽減部をしわ抑え面の周方向に不連続に設けてなるこ とを特徴とする。  I? The die is characterized in that the friction reducing portion is provided discontinuously in the circumferential direction of the wrinkle suppressing surface.
さらに、 円形の開口部を有する円筒容器成形用に用いることが望ましく、 摩擦軽減部を、 ブランクを絞り加工した際に容器高さが他の部分より高くなる部 分 （耳） が発生するしわ抑え面の部分に設けてなることが望ましい。 Furthermore, it is desirable to use it for molding a cylindrical container having a circular opening. 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.
Ό さらにこのダイスは、 摩擦軽減部が、 ブランクが絞られる方向に対して垂直方向 に設けられた複数の溝であることをを特徴とする。  Ό Further, 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.
そしてこのダイスでは、 摩擦軽減部をしわ抑え面において略 6 0 ° 毎に放射状 に設けることが望ましく、 しわ抑え面において略 9 0 ° 毎に放射状に設けてるこ とも好ましい。  In this die, it is preferable that 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.
^ 本発明の絞り加工方法は、 長尺の圧延加工された金属板から打ち抜いて得られ たブランクを絞り加工する絞り加工方法において、 前記の絞り加工用ダイスを用 い、 ブランクを絞り容器に加工した際に耳が発生する部分が摩擦軽減部に当接す るようにして絞り加工することにより、 前記耳の発生を抑制することを特徴とす る。 ^ 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. In addition, 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.
また、 本発明の絞り加工方法は、 長尺の圧延加工された金属板の、 互いに相対 する 2辺が実質的に平行な六角形を基本形状とし、 六角形の周辺の各角部が円弧 状に形成された形状のブランクを、 六角形の互いに相対する実質的に平行な 2辺 の 1対が、 金属板の圧延方向に対して 8 0〜 1 0 0 ° の角度をなすように打ち抜 いて得られたブランクを絞り容器に加工する絞り加工方法において、 請求項 6に 記載の絞り加工用ダイスを用い、 ブランクの六角形の周辺の各角部が円弧状に形 ( 0 成された部分が摩擦軽減部に当接するようにして絞り加工することにより、 六角 形の周辺の各角部が円弧状に形成された形状のブランクを絞り容器に加工した際 に、 容器高さが他の部分より高くなる部分の容器高さが、 他の部分の容器高さよ り高くなることを抑制することを特徴とする。  Further, 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. A drawing method for processing the blank obtained by the above into a drawing container, wherein each of the corners around the hexagon of the blank is formed in an arc shape using the drawing die according to claim 6. When the blank is formed into a drawn container in which each corner around the hexagon is formed into an arc shape by drawing in contact with the friction reducing part, the height of the container is changed to other parts. The height of the container in the higher part is higher than the height of the container in the other part It is characterized in that it is suppressed.
本発明の絞り加工容器は、 請求項 8又は 9の絞り加工方法を用いることを特徴 (5 とする。  The drawing container of the present invention is characterized by using the drawing method according to claim 8 or 9 (5).
なお、 ここでいう絞り缶、 および再絞り缶は、 絞り加工のみ、 およびしごき加 ェを含む絞り · しごき加工により成形されたものの両方を意味する （以下同様） 。 図面の簡単な説明  Here, 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). BRIEF DESCRIPTION OF THE FIGURES
vo 図 1は、 本発明のしわ抑え面に摩擦軽減部を設けた絞り加工用ダイスの 1例を 示す概略図である。 図 2は、 従来の絞り加工用ダイスの概略斜視図である。 図 3 は、 金属板が絞り加工される状態を示す概略図である。 図 4は、 絞り容器の耳の 発生状態を示す概略図である。 図 5は、 本発明のしわ抑え面に摩擦軽減部を設け た絞り加工用ダイスの他の 1例を示す。 図 6は、 金属板から略六角形のブランクvo 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.
^ を打ち抜く方法を示す概略図である。 発明を実施するための最良の形態 It is the schematic which shows the method of punching out ^. BEST MODE FOR CARRYING OUT THE INVENTION
本発明は、 金属板を絞り加工により容器に成形する際の耳の発生を抑制するた めに、 絞り加工用ダイスのしわ抑え面の、 ブランクを絞り加工した際に容器高さ が他の部分より高くなる部分 （耳） が発生する部分に、 摩擦軽減部を設けること 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. Provide a friction reducing part in the part where the higher part (ear) occurs
5 により、 絞り加工により発生する耳を抑制し、 均一な容器高さの絞り容器を得る ものである。 以下、 本発明を詳細に説明する。 According to Fig. 5, ears generated by drawing are suppressed, and a drawn container having a uniform container height is obtained. Hereinafter, the present invention will be described in detail.
従来、 金属の圧延板を円筒容器に絞り成形するためには、 図 2に示すように円 形の開口部 2 1としわ抑え面 2 2とを有し、 さらにしわ抑え面 2 2から開口部 2 1にかけては局率半径 Rの曲線で移行する肩部 2 3を有する絞り加工用ダイスが Conventionally, to form a rolled metal plate into a cylindrical container by drawing, as shown in FIG. 2, 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
(0 用いられている。 絞り加工は図 3に示すようにして行われる。 すなわち、 円形ブ ランクに打ち抜かれた金属板 3は、 その中心が絞り加工用ダイス 2の中心と一致 するように絞り加工ダイス 2のしわ抑え面 2 2上に置かれる。 その上にポンチ 5 が貫通自在となるように穿孔されたブランクホルダ一 4を当接し、 貫通孔 4 1か らポンチ 5を矢印方向に下降させ、 金属板 3を絞り加工ダイス 2の開口部 2 1に 圧入して絞り加工することにより、 金属板 3を円筒容器に絞り加工する。 絞り加 ェ用ダイス 2には、 金属板 3が絞り加工用ダイス 2の開口部 2 1に円滑に圧入す るように、 しわ抑え面 2 2から開口部 2 1にかけては局率半径 Rの曲線で移行す る肩部 2 3が設けられている。 また、 金属板 3にはブランクホルダ一 4を介して しわ発生を抑制する荷重 （しわ抑え荷重） が負荷されている。 このようにして図(0 is used. 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. In order to smoothly press-fit the opening 21 of the processing die 2, 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. In addition, a load that suppresses the generation of wrinkles on the metal plate 3 via the blank holder 1 (Wrinkle suppressing load) is applied.
^ 4に示す円筒絞り容器 4 0が得られる。 ^ 4 is obtained.
図 3のようにして絞り成形された絞り容器には、 図 4に示すように容器高さが 他の部分より高くなる部分 （耳） 4 2が不可避的に発生する。 本発明の第 1の目 的は、 絞り加工時の耳の発生を抑制する絞り加工用ダイスを提供することである。 本発明の絞り加工用ダイスは、 金属の圧延板を通常の円形のブランクに打ち抜い た場合に適用するものと、 ブランク取りに際してスクラップ部分として捨てられ る部分を節減するために、 六角形を基本とし、 一定範囲の曲率半径でその角部を 丸めた形状でブランキングする略六角形のブランクに打ち抜いた場合に適用する ものの 2通りがある。 まず、 通常の円形のブランクに打ち抜いた場合に適用する 絞り加工用ダイスについて説明する。 As shown in FIG. 4, in the drawn container formed by drawing as shown in FIG. 3, a portion (ear) 42 where the container height is higher than other portions is inevitably generated. 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. , With 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.
金属の圧延板から打ち抜いた円形ブランクを、 通常の絞り加工用ダイスを用い b て円筒容器に成形加工する場合、 用いる金属板の材料成分、 熱間圧延条件、 冷間 圧延条件、 焼鈍条件などの諸条件により 4個、 または 6個の耳が発生する。 この 耳の発生位置は前記諸条件を制御することにより、 金属板の圧延方向に対してほ ぼ一定角度の位置に発生させるように制御可能である。 一方、 同一の絞り加工用 ダイスを用いて成形加工した場合、 金属板に潤滑剤を多めに塗布して成形加工し When a circular blank punched from a rolled metal plate is formed into a cylindrical container using ordinary drawing dies, the material composition of the metal plate used, hot rolling conditions, cold rolling conditions, annealing conditions, etc. Depending on conditions, four or six ears may be generated. By controlling the above conditions, 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. On the other hand, when forming is performed using the same drawing die, a large amount of lubricant is applied to the metal plate and formed.
1 0 たり、 しわ抑え荷重を小さくして、 金属板と絞り加工用ダイスの摩擦を軽減させ ることにより、 絞り加工容器の高さが低くなることが経験的に知られている。 本 発明の発明者等は、 耳が発生する部分の金属板が当接する絞り加工用ダイスのし わ抑え面の部分のみ摩擦を軽減させることにより、 耳の発生を抑制することが可 能ではないかと考え、 その具体的手段について鋭意研究した結果、 本発明に至つ i たものである。 It has been empirically known that the height of the drawing container is reduced by reducing the friction between the metal plate and the drawing die by reducing the wrinkle suppressing load by 10 or less. The inventors of the present invention cannot suppress the occurrence of the ear by reducing the friction only on the wrinkle suppressing surface of the drawing die in contact with the metal plate where the ear is generated. As a result of intensive research on the specific means, the present invention has been made.
本発明においては、 耳が発生する部分の金属板が当接する絞り加工用ダイスの しわ抑え面の部分のみ摩擦を軽減させる手段として、 絞り加工用ダイスのしわ抑 え面に複数の溝を設け、 金属板と絞り加工ダイスが接触する面積を減少させるこ とが最も有効であることを見出した。 図 1に示すように、 本発明の絞り加工用ダ D イス 1は、 開口部 1 1を有するしわ抑え面 1 2上に、 金属板を絞り加工容器に成 形加工した際に耳が発生する方向 1 0 (図 1は 4個の耳が発生する場合を示す） を中心とする溝を （4個の耳が発生する場合は略 9 0 ° 毎に） 設ける範囲を表す 一定角度 1 4内に、 開口部 1 1からダイス外縁部 1 6に向かって複数個 （図 1は 5個の溝を設ける場合を示す） の溝 1 3を、 ブランクが絞られる方向に対して垂 直方向 （ダイス開口部の周と平行方向） に穿設することを特徴とする。  In the present invention, 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. As shown in FIG. 1, in the drawing die 1 of the present invention, an ear is generated when a metal plate is formed into a drawing container on a wrinkle suppressing surface 12 having an opening 11. Within a fixed angle 14 that indicates the range in which a groove centered on direction 10 (Fig. 1 shows the case where four ears are generated) is provided (about every 90 ° when four ears are generated) At the same time, 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).
4個の耳が発生する場合を示す図 1において、 溝を設ける範囲を表す一定角度 の範囲は 3 0〜6 0 ° であることが好ましく、 3 5〜5 5 ° がより好ましい。 6 個の耳が発生する場合は、 耳が発生する方向を中心とする溝を略 6 0 ° 毎に設け る。 この場合、 溝を設ける範囲を表す一定角度の範囲は 1 5〜4 5 ° であること が好ましく、 2 0〜4 0 ° がより好ましい。 これらの範囲外まで溝を設けた場合In Fig. 1 showing the case where four ears are generated, 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 °. In this case, 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
5 は耳の発生を抑制する効果が十分に発揮されない。 溝の幅および個数は金属板ま たはダイスに塗布する潤滑剤の量や負荷するしわ抑え荷重にもよるが、 2〜 5 m mの幅で 3〜 1 0個設けることが好ましい。 溝の幅が 2 mm未満の場合は、 溝を 1 1個以上設けても耳の発生を十分に抑制することが困難である。 一方、 溝の幅 が 5 mmを越えると成形した容器の側壁に疵を生じることがある。 また、 溝の個 ι θ 数が 3個未満では耳の発生を十分に抑制することが困難であり、 1 1個以上設け た場合は十分な容器高さが得らえず、 その部分の容器高さが他の部分よりも低く なり、 好ましくない。 溝の深さは加工条件にもよるが、 板厚が 0 . 2 mm程度の 材料を加工する場合は 0 . 0 5 mm以上、 好ましくは 0 . 1 mm以上であれば十分 に摩擦が軽減する。 溝の深の上限は特に限定する必要はないが、 加工のし易さの i 点から l mm以下であることが好ましい。 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.
つぎに、 六角形を基本とし、 一定範囲の曲率半径でその角部を丸めた形状でブ ランキングする略六角形のブランクに打ち抜いた場合に適用する絞り加工用ダイ スについて説明する。 略六角形のブランクを絞り容器に成形加工すると、 六角形 の頂点 （角部） に相当する部分の容器高さが他の部分より高くなるため、 図 5に Next, a description will be given of a drawing die applied to the case where a hexagonal blank is punched into a substantially hexagonal blank that is blanked with a rounded corner at a certain radius of curvature with a certain radius of curvature. When a substantially hexagonal blank is formed into a drawn container, the height of the container corresponding to the apex (corner) of the hexagon becomes higher than the other portions.
IV 示すように、 溝を設ける範囲を表す一定角度 5 4を 6個の容器高さが他の部分よ り高くなる方向 5 5を中心として略 6 0 ° 毎に設定し、 この範囲内に図 1と同様 にして溝を設ける。 溝を設ける範囲を表す一定角度 5 4の範囲、 溝 5 3の幅、 個 数および深さの好適範囲は、 通常の絞り加工用ダイスを用いて円筒容器に成形加 ェする際に、 前述の 6個の耳が発生する場合に用いるダイスと同様の範囲としてIV As shown in the figure, 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. Provide grooves in the same way as 1. 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
25- 差し支えない。 25- No problem.
本発明においては、 摩擦軽減部を絞り加工ダイスに設けたが、 摩擦軽減部はブ ランクホルダ一に設けても差し支えない。 また、 摩擦軽減部は絞り加工用ダイス とブランクホルダ一の両方に設けても差し支えない。 さらに、 本発明においては 絞り加工用ダイスのしわ抑え面の耳が発生する部分に摩擦軽減部を設けて耳の発 生を抑制しているが、 これとは逆に、 絞り加工用ダイスのしわ抑え面の耳が発生 ^ する部分以外の部分に摩擦増大部を設け、 耳が発生する部分以外の容器高さを高 め、 耳の部分との高さの相違を減少させることも可能である。 ブランクホルダ一 および絞り加工用ダイスとブランクホルダ一の両方に摩擦増大部を設けても差し 支えないことは言うまでもない。 摩擦増大部は、 例えば摩擦増大部の表面を、 摩 擦増大部以外の部分より粗面化するなどして形成させることができる。 粗面化の 1 0 手段としては、 機械研削、 化学エッチングなど、 通常の粗面化手段を用いること ができる。 In the present invention, 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. Further, in the present invention, 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. On the contrary, 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 ^ . It goes without saying that 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. As the 10 means for surface roughening, ordinary surface roughening means such as mechanical grinding and chemical etching can be used.
本発明の絞り加工ダイスに適用される金属板としては、 鋼板、 銅板、 銅合金板、 アルミニウム板、 アルミニウム合金板、 ステンレス鋼板、 これらの金属板にニッ ケル、 錫、 亜鉛などの金属も少なくとも 1種、 およびこれらの少なくとも 2種以 I？ 上の金属からなる合金をめつきしためっき金属板、 またはこれらの金属板にクロ ム酸処理、 リン酸処理などによる化成処理皮膜や、 水蒸気処理などによる酸化皮 膜を形成させた表面処理金属板、 さらに前記のいずれかの金属板に有機樹脂層を 設けた有機樹脂被覆金属板などを挙げることができる。  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.
以下、 実施例にて本発明をさらに詳細に説明する。  Hereinafter, the present invention will be described in more detail with reference to Examples.
^ (実施例 1 ) ^ (Example 1)
板厚 0. 1 8 mmの低炭素冷延鋼板の片面に厚さ 2 5 のポリエチレンテ レフ夕レートフィルムを、 他の片面に厚さ 1 7 mのポリエチレンテレフ夕レー トフイルムを積層してなる樹脂被覆鋼板から、 図 6に示す略六角形のブランクを 打ち抜き、 試験片とした。 すなわち、 略六角形の 1組の平行な 2辺が鋼板の圧延 方向と平行となるようにブランキングした。 略六角形の大きさは、 図 6において 2 X = 1 7 1 mm、 2 Y = 1 6 3 mmとし、 各角部は R = 5 1 mmの局率半径 ( R ) で丸めた形状とした。 この略六角形の樹脂被覆鋼板からなる試験片を、 厚 さ 1 7 mのポリエチレンテレフタレ一トフイルムを積層した面が絞り容器の外 面側となるようにして、 絞り径 1 0 l mm、 肩部の局率半径 0 . 5 mmの絞り加 ェ用ダイスのしわ抑え面に、 6 0 ° 毎に表 1に試料番号 1から 1 1で示す溝を穿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 approximate hexagon size is 2 X = 17 1 mm and 2 Y = 16 3 mm in Fig. 6, and each corner has a local radius of R = 51 mm. 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.
5 設した絞り加工用ダイスと、 1 0 0 mm径のポンチを用い、 6 . 5 t o n のしわ 抑え荷重を負荷して絞り容器に成形した。 得られた絞り容器の容器高さが他の部 分より高い部分 （6個所） の容器高さを測定し、 その最大値を最高高さとした。 また、 容器高さが他の部分より高い部分の間の、 容器高さが低い部分 （6個所） の容器高さを測定し、 その最低値を最低高さとした。 さらに、 最高高さと最低高Using a drawing die and a punch having a diameter of 100 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. In addition, 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. In addition, the highest and lowest height
( 0 さの差も求めた。 これらの結果を表 1に示す。 さらに、 成形した絞り容器の外観 を肉眼で評価した。 結果を表 1に示す。 (The difference in 0 was also determined. The results are shown in Table 1. Further, the appearance of the formed squeezed container was visually evaluated. The results are shown in Table 1.
(実施例 2 )  (Example 2)
実施例 1と同様の樹脂被覆鋼板から、 直径 1 6 6 mmの円ブランクを打ち抜き、 試験片とした。 円ブランク試験片を、 厚さ 1 7 mのポリエチレンテレフタレ一 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
I？ トフイルムを積層した面が絞り容器の外面側となるようにして、 絞り径 1 0 l m m、 肩部の局率半径 0 . 5 mmの絞り加工用ダイスと、 1 0 0 mm径のポンチを 用い、 6 . 5 t o nのしわ抑え荷重を負荷して絞り容器に成形した （試料番号 1 2 ) 。 得られた絞り容器の容器高さが他の部分より高い部分 （4個所） の容器高 さを測定し、 その最大値を最高高さとした。 また、 容器高さが他の部分より高いI? Using a drawing die with a drawing diameter of 10 lmm and a shoulder radius of 0.5 mm, and a punch with a diameter of 100 mm, with the laminated surface of the film being the outer surface of the drawing container, A 6.5-ton wrinkle suppressing load was applied to form a drawn container (sample number 12). The container height of the part (4 places) where the container height of the obtained squeezed container was higher than the other parts was measured, and the maximum value was taken as the maximum height. Also, the container height is higher than other parts
^ 部分の間の、 容器高さが低い部分 （4個所） の容器高さを測定し、 その最低値を 最低高さとした。 さらに、 最高高さと最低高さの差も求めた。 さらに、 成形した 絞り容器の外観を肉眼で評価した。 これらの結果を表 2に示す。 また、 得られた 絞り容器において、 鋼板の圧延方向に対する各耳の発生する角度を測定し、 絞り 加工用ダイスのしわ抑え面の各耳の発生する方向に、 表 2の試料番号 1 3に示す 溝を穿設した。 ついで、 上記と同一の円ブランク試験片を、 厚さ 1 7 mのポリ エチレンテレフ夕レートフィルムを積層した面が絞り容器の外面側となるように し、 さらに、 円ブランクの耳の発生する方向と絞り加工用ダイスのしわ抑え面に 設けた溝の方向が一致するように配置し、 1 0 O mm径のボンチを用い、 6. 5 t o nのしわ抑え荷重を負荷して絞り容器に成形した。 得られた絞り容器の耳の最 高部の最高平均と、 耳の最低部の最低平均、 さらに、 最高平均と最低平均の差を 試料番号 1 2と同様にして求めた。 さらに、 成形した絞り容器の外観を肉眼で評 価した。 これらの結果を表 2に示す。 ^ The container height was measured at the lower part (4 places) between the parts, and the lowest value was taken as the minimum height. In addition, the difference between the highest and lowest heights was determined. Furthermore, the appearance of the formed squeeze container was visually evaluated. Table 2 shows the results. In the obtained drawn container, the angle at which each ear was generated with respect to the rolling direction of the steel sheet was measured, and the direction in which each ear was formed on the wrinkle suppressing surface of the drawing die was shown in Sample No. 13 in Table 2. A groove was drilled. Next, the same circular blank test piece as above was placed so that the surface on which a 17 m-thick polyethylene terephthalate film was laminated was on the outer surface side of the drawn container. Then, place the circle blank in the direction in which the ears are generated and the direction of the groove formed on the wrinkle suppressing surface of the drawing die, and use a 10-Omm-dia. A wrinkle suppressing load was applied to form a drawn container. The highest average of the highest part of the ear and the lowest average of the lowest part of the ear, and the difference between the highest average and the lowest average of the obtained squeezing container were obtained in the same manner as in Sample No. 12. Furthermore, the appearance of the formed squeeze container was visually evaluated. Table 2 shows the results.
略六角形ブラ ンクの場合 For a hexagonal blank
Figure imgf000012_0001
Figure imgf000012_0001
注） 一は溝を設けず 表 2 Note) One does not have a groove Table 2
円ブラ ンクの場合
Figure imgf000013_0001
For yen blank
Figure imgf000013_0001
注） —は溝を設けず Note) — has no groove
表 1および表 2に示すように、 好適条件でしわ抑え面に摩擦を軽減する溝を穿 設した本発明の絞り加工用ダイスを用いて金属板を絞り加工すると、 耳もしくは 容器高さの不揃いが小さい、 均一な容器高さの絞り容器を成形することが可能で ある。 産業上の利用可能性 As shown in Table 1 and Table 2, when the metal plate is drawn using the drawing die of the present invention in which a groove for reducing friction is formed on the wrinkle suppressing surface under suitable conditions, the height of the lugs or the height of the container becomes uneven. It is possible to form a drawn container having a small height and a uniform container height. Industrial applicability
本発明の絞り加工用ダイスは、 絞り加工用ダイスのしわ抑え面の、 ブランクを 絞り加工した際に容器高さが他の部分より高くなる部分 （耳） が発生する部分に、 摩擦軽減部を設けたものであり、 本発明の絞り加工用ダイスを用いることにより、 絞り加工による耳の発生が抑制され、 均一な容器高さの絞り容器を得ることがで さる。  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. By using the drawing die of the present invention, the occurrence of ears due to drawing is suppressed, and a drawn container having a uniform container height can be obtained.

Claims

請 求 の 範 囲 The scope of the claims
1 . 絞り加工用ダイスにおいて、 しわ抑え面に摩擦軽減部を設けてなることを 特徴とする絞り加工用ダイス。 1. A drawing die, which is provided with a friction reducing portion on a wrinkle suppressing surface.
2 . 前記摩擦軽減部を前記しわ抑え面の周方向に不連続に設けてなることを特 徴とする請求項 1に記載の絞り加工用ダイス。  2. The drawing die according to claim 1, wherein the friction reducing portion is provided discontinuously in a circumferential direction of the wrinkle suppressing surface.
3 . 前記絞り加工用ダイスが、 円形の開口部を有する円筒容器成形用の絞り加 ェ用ダイスであることを特徴とする請求項 1又は 2に記載の絞り加工用ダイス。 3. The drawing die according to claim 1, wherein the drawing die is a drawing die for forming a cylindrical container having a circular opening.
4 . 前記摩擦軽減部を、 ブランクを絞り加工した際に容器高さが他の部分より 高くなる部分 （耳） が発生するしわ抑え面の部分に設けてなることを特徴とする 請求項 1〜 3のいずれかに記載の絞り加工用ダイス。 4. The friction reducing portion is provided on a portion of a wrinkle suppressing surface where a portion (ear) where a container height becomes higher than other portions when a blank is drawn is generated. 3. The die for drawing according to any one of 3.
5 . 前記摩擦軽減部が、 ブランクが絞られる方向に対して垂直方向に設けられ た複数の溝であることをを特徴とする請求項 1〜4のいずれかに記載の絞り加工 用ダイス。  5. The drawing die according to claim 1, wherein the friction reducing portion is a plurality of grooves provided in a direction perpendicular to a direction in which the blank is drawn.
6 . 前記摩擦軽減部を、 前記しわ抑え面において略 6 0 ° 毎に放射状に設けて なることを特徴とする請求項 1〜 5のいずれかに記載の絞り加工用ダイス。 6. The drawing die according to any one of claims 1 to 5, wherein the friction reducing portion is provided radially at approximately 60 ° on the wrinkle suppressing surface.
7 . 前記摩擦軽減部を、 前記しわ抑え面において略 9 0 ° 毎に放射状に設けて なることを特徴とする請求項 1〜 5のいずれかに記載の絞り加工用ダイス。7. The drawing die according to any one of claims 1 to 5, wherein the friction reducing portion is provided radially at approximately 90 ° on the wrinkle suppressing surface.
8 . 長尺の圧延加工された金属板から打ち抜いて得られたたブランクを絞り加 ェする絞り加工方法において、 請求項 1〜7のいずれかに記載の絞り加工用ダイ スを用い、 前記ブランクを絞り容器に加工した際に前記耳が発生する部分が前記 摩擦軽減部に当接するようにして絞り加工することにより、 前記耳の発生を抑制 することを特徴とする、 絞り加工方法。 8. A drawing method for drawing and drawing a blank obtained by punching out a long rolled metal plate, wherein the drawing is performed by using the drawing die according to any one of claims 1 to 7. A drawing method, characterized in that the drawing process is performed such that a portion where the ears are formed when the drawing is processed into a drawing container is brought into contact with the friction reducing portion to thereby suppress the generation of the ears.
9 . 長尺の圧延加工された金属板の、 互いに相対する 2辺が実質的に平行な六 角形を基本形状とし、 前記六角形の周辺の各角部が円弧状に形成された形状のブ ランクを、 前記六角形の互いに相対する実質的に平行な 2辺の 1対が、 前記金属 板の圧延方向に対して 8 0〜1 0 0 ° の角度をなすように打ち抜いて得られたブ ランクを絞り容器に加工する絞り加工方法において、 請求項 6に記載の絞り加工 用ダイスを用い、 前記ブランクの前記六角形の周辺の各角部が円弧状に形成され た部分が前記摩擦軽減部に当接するようにして絞り加工することにより、 前記六 角形の周辺の各角部が円弧状に形成された形状のブランクを絞り容器に加工した 際に、 容器高さが他の部分より高くなる部分の容器高さが、 他の部分の容器高さ より高くなることを抑制することを特徴とする、 絞り加工方法。 9. The base shape of the long rolled metal plate is a hexagon whose two sides facing each other are substantially parallel, and each corner around the hexagon is formed in an arc shape. The rank is such that one pair of two substantially parallel sides of the hexagon facing each other is the metal A drawing method for processing a blank obtained by punching at an angle of 80 to 100 ° with respect to the rolling direction of the sheet into a drawing container, wherein the drawing die according to claim 6 is used. The blank is formed by drawing so that the corners of the hexagon around the hexagon that are formed in an arc shape abut on the friction reducing portion, so that the corners around the hexagon are arc-shaped. When the blank with the shape formed in the above is processed into a squeezed container, the container height of the part where the container height is higher than the other part is suppressed from being higher than the container height of the other part. And the drawing method.
1 0 . 請求項 8に記載の絞り加工方法を用いて成形してなる絞り加工容器。 10. A drawn container formed by the drawing method according to claim 8.
1 1 . 請求項 9に記載の絞り加工方法を用いて成形してなる絞り加工容器。 11. A drawn container formed by the drawing method according to claim 9.
PCT/JP1999/001310 1998-03-23 1999-03-17 Drawing die, drawing method using drawing die, and drawn container formed using drawing die WO1999048631A1 (en)

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 (en) 1999-09-30

Family

ID=14049476

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1999/001310 WO1999048631A1 (en) 1998-03-23 1999-03-17 Drawing die, drawing method using drawing die, and drawn container formed using drawing die

Country Status (2)

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

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012140266A1 (en) * 2011-04-15 2012-10-18 Ball Packaging Europe Gmbh Method and device for producing metal containers that are open at one end
WO2014057737A1 (en) 2012-10-10 2014-04-17 東洋鋼鈑株式会社 Method for manufacturing cylindrical container
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 (en) * 1988-10-19 1990-04-25 Kobe Steel Ltd Method for deep-drawing al alloy hard sheet
JPH0788569A (en) * 1993-09-17 1995-04-04 Nippon Steel Corp Drawing method remarkaby less in earing
JPH07112575B2 (en) * 1986-10-30 1995-12-06 日本電装株式会社 Cylindrical drawing method
JP2507311Y2 (en) * 1995-05-01 1996-08-14 三菱アルミニウム株式会社 Cylindrical deep drawing tool

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07112575B2 (en) * 1986-10-30 1995-12-06 日本電装株式会社 Cylindrical drawing method
JPH02112830A (en) * 1988-10-19 1990-04-25 Kobe Steel Ltd Method for deep-drawing al alloy hard sheet
JPH0788569A (en) * 1993-09-17 1995-04-04 Nippon Steel Corp Drawing method remarkaby less in earing
JP2507311Y2 (en) * 1995-05-01 1996-08-14 三菱アルミニウム株式会社 Cylindrical deep drawing tool

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012140266A1 (en) * 2011-04-15 2012-10-18 Ball Packaging Europe Gmbh Method and device for producing metal containers that are open at one end
WO2014057737A1 (en) 2012-10-10 2014-04-17 東洋鋼鈑株式会社 Method for manufacturing cylindrical container
JP2014076462A (en) * 2012-10-10 2014-05-01 Toyo Kohan Co Ltd Method of manufacturing cylindrical vessel
CN104718031A (en) * 2012-10-10 2015-06-17 东洋钢钣株式会社 Method for manufacturing cylindrical container
KR20150068354A (en) 2012-10-10 2015-06-19 도요 고한 가부시키가이샤 Method for manufacturing cylindrical container
CN104718031B (en) * 2012-10-10 2019-04-19 东洋钢钣株式会社 The manufacturing method of cylindrical vessel
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 (en) * 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 Cupping diaphragm pad
US10807139B2 (en) * 2015-08-20 2020-10-20 Anheuser-Busch, Llc Cupper draw pad

Also Published As

Publication number Publication date
AU2852399A (en) 1999-10-18

Similar Documents

Publication Publication Date Title
KR102032595B1 (en) Method for manufacturing cylindrical container
CN102387873B (en) Titanium plate and method for manufacturing titanium plates
EP1191615A3 (en) A battery container and surface treated steel sheet for battery container
KR890002574B1 (en) Process for making container
WO1999048631A1 (en) Drawing die, drawing method using drawing die, and drawn container formed using drawing die
CN111266414B (en) Method for controlling pattern depth on surface of stainless steel
JP2008269777A (en) Method of manufacturing aluminum alloy substrate for magnetic disk and stamping press die for aluminum alloy substrate for magnetic disk
JP2000288643A (en) Method for press-forming embossed aluminum alloy sheet
JP2562756B2 (en) Cylinder deep drawing die and cylindrical deep drawing method
JP2877847B2 (en) Manufacturing method of Ni-plated steel sheet
JP3758974B2 (en) Method for producing cooking container
CN105327936A (en) Board machining method and board
JP4785165B2 (en) Blanking method
Fann et al. Finite element analysis of rolling process to locally thin metal strips
JP2855392B2 (en) Cold rolled plate
JP2003201534A (en) Rolled aluminum-alloy sheet for can end, and noncircular blank for can-end working
JPH05192701A (en) Metallic sheet excellent in galling resistance and rolling roll used for manufacturing same
CN111229839B (en) Production process method of cold-rolled embossed plate of twenty-high rolling mill
JP2570943B2 (en) Shallow drawn and deep drawn compacts
JPH04105721A (en) Press forming method for metallic sheet
JPH05162733A (en) Manufacture of thin nickel plated metal can for battery
EP3495059A1 (en) Method of producing can bodies
KR810000948B1 (en) Ironing process for seamless can
JPH05337560A (en) Thin plate excellent in drawing formability for press
JP2530970B2 (en) Steel strip with excellent paint clarity and press formability

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AL AM AT AU AZ BA BB BG BR BY CA CH CN CU CZ DE DK EE ES FI GB GE GH GM HR HU ID IL IN IS JP KE KG KR KZ LC LK LR LS LT LU LV MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT UA UG US UZ VN YU ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW SD SL SZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
NENP Non-entry into the national phase

Ref country code: KR

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

122 Ep: pct application non-entry in european phase