JP2562756B2 - Cylinder deep drawing die and cylindrical deep drawing method - Google Patents
Cylinder deep drawing die and cylindrical deep drawing methodInfo
- Publication number
- JP2562756B2 JP2562756B2 JP3295250A JP29525091A JP2562756B2 JP 2562756 B2 JP2562756 B2 JP 2562756B2 JP 3295250 A JP3295250 A JP 3295250A JP 29525091 A JP29525091 A JP 29525091A JP 2562756 B2 JP2562756 B2 JP 2562756B2
- Authority
- JP
- Japan
- Prior art keywords
- radius
- die
- shoulder
- deep drawing
- metal plate
- 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.)
- Expired - Fee Related
Links
Landscapes
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、面内塑性異方性を有す
る金属板を、耳率の小さなカップに成形するための円筒
深絞り加工用ダイス、および円筒深絞り加工方法に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cylindrical deep drawing die for forming a metal plate having in-plane plastic anisotropy into a cup having a small earring, and a cylindrical deep drawing method.
【０００２】[0002]
【従来の技術】２回絞り缶（ＤＲＤ缶：Ｄｒａｗｎ ＆
Ｒｅｄｒａｗｎ缶）、ＤＩ缶（Ｄｒａｗｎ ＆ Ｉｒ
ｏｎｅｄ缶）は、それぞれ魚肉、飲料等の容器として広
く使用されている。これらＤＲＤ缶、ＤＩ缶は、絞り加
工工程を経て製造されるが、絞り加工される金属板は必
ずしも等方的でないため、缶縁高さは缶周上で一様にな
らず缶高さの高い部分（以下、山部と称する）、缶高さ
の低い部分（以下、谷部と称する）が、形成される。こ
の山部、谷部の程度が大きいと、その分トリム代が多く
なり、材料の使用効率が悪くなる。また、しごき加工
（Ｉｒｏｎｉｎｇ）においては、山部、谷部の程度が大
きいと加工後、缶のポンチよりの取り外しが難しくな
る。絞り缶の山部、谷部の程度（以下、耳率と称する。
耳率＝（山部缶高さ−谷部缶高さ）／谷部缶高さｘ１０
０）が大きくなるとこのような不具合をもたらすため耳
率を小さくすることが重要となる。この山部、谷部は、
金属板に面内塑性異方性が存在するため、すなわち塑性
異方性（一般に、ランクフォード値＝板幅歪／板厚歪で
表される）が板面内の方向により相違するため形成され
るものである。ここで、塑性異方性には、結晶集合組織
が密接に関連し、鋼の成分、製造履歴などが影響する。
それゆえ鋼の組成、製造プロセスが一定であれば、圧延
方向、その直角方向など特定の方向に、耳率が同じ程度
の山部、谷部が形成されることになる。この耳率を小さ
くする技術として特開昭５８−１５１４２６、特開昭６
２−１６１９１９があるが、これらは、鋼中の含有成
分、製造プロセスを適正なものとすることにより、鋼板
の面内塑性異方性を小さくするといった観点すなわち被
加工材の特性の適正化を図るものであり、本願のごと
く、ダイス肩部に着目し、加工面から検討したものは見
受けられない。2. Description of the Related Art Double squeezing cans (DRD cans: Draw &
Red cans, DI cans (Drawn & Ir)
oned cans) are widely used as containers for fish meat, beverages, etc., respectively. Although these DRD cans and DI cans are manufactured through a drawing process, the drawn metal plate is not necessarily isotropic, so the can edge height is not uniform on the circumference of the can, and the can height is not uniform. A high portion (hereinafter referred to as a mountain portion) and a portion having a low can height (hereinafter referred to as a valley portion) are formed. If the degree of the peaks and valleys is large, the trim margin is increased accordingly, and the use efficiency of the material is deteriorated. Further, in ironing (Ironing), if the peaks and valleys are large, it becomes difficult to remove the can from the punch after processing. The degree of the peaks and valleys of the squeeze can (hereinafter referred to as ear ratio).
Ear ratio = (mountain can height-valley can height) / valley can height x 10
If 0) becomes large, such a problem will occur, so it is important to reduce the ear rate. These mountains and valleys are
It is formed because the in-plane plastic anisotropy exists in the metal plate, that is, the plastic anisotropy (generally expressed as Rankford value = plate width strain / plate thickness strain) differs depending on the in-plane direction. It is something. Here, the crystal anisotropy is closely related to the plastic anisotropy, and the composition of steel, the manufacturing history, and the like influence.
Therefore, if the composition of the steel and the manufacturing process are constant, peaks and valleys having the same ear ratio are formed in a specific direction such as the rolling direction or the direction perpendicular to the rolling direction. Techniques for reducing the ear rate are Japanese Patent Laid-Open Nos. 58-151426 and 6-SHO6.
2 to 161919, these are aimed at reducing the in-plane plastic anisotropy of the steel sheet by optimizing the contained components in the steel and the manufacturing process, that is, optimizing the characteristics of the work material. It is intended, and as in the present application, no consideration is given to the die shoulder, and no consideration is given to the processed surface.
【０００３】[0003]
【発明が解決しようとする課題】耳率は、特開昭５８−
１５１４２６、特開昭６２−１６１９１９等の方法によ
って、ある程度改善されるものの、金属板の成分、製造
プロセスが制約される場合、改善には自ずと限界があ
り、また多岐にわたる製品に応じて成分、製造プロセス
の適正化を図ることは、工程等を極めて複雑なものとす
る。本発明は、面内異方性が大きく、それゆえ通常の円
筒深絞り加工においては、耳率の大きな絞り缶となる金
属板を、耳率の小さな絞り缶に成形しうる円筒深絞り用
ダイス、および円筒深絞り方法を提供することを課題と
する。The ear ratio is calculated according to Japanese Patent Laid-Open No. 58-58-58.
151426, JP-A-62-161919, and the like, some improvement is made, but when the components of the metal plate and the manufacturing process are restricted, there is a limit to the improvement, and the components and the manufacturing according to a wide variety of products. Proper process optimization makes the process extremely complicated. INDUSTRIAL APPLICABILITY The present invention provides a cylindrical deep-drawing die capable of forming a metal plate, which has a large in-plane anisotropy and therefore has a large earring in a normal cylindrical deep-drawing, into a drawing can with a small earing. , And a cylindrical deep drawing method.
【０００４】[0004]
【課題を解決するための手段】本発明は、通常の絞り加
工によれば、耳率の大きな絞り缶となる面内塑性異方性
の大きな金属板を、耳率の小さな絞り缶に成形しうる絞
り加工金型、およびその金型を用いての絞り加工方法を
提供するものである。絞り加工は、通常図３に示すよう
なダイス４、ポンチ５、しわ押え６を用いて行われる
が、本発明は、ダイス４の肩半径７を周方向で異なるも
のとすることにより本願の課題を解決するものである。
すなわち金属板の成分、製造プロセスが一定であれば、
山部、谷部は通板方向に対して特定の方向に形成される
ため、その山部、谷部に対応させてダイスの肩半径寸法
を適正なものとすることにより、絞り缶の耳率を小さく
するものである。以下に、本発明の内容について説明す
る。According to the present invention, according to a normal drawing process, a metal plate having a large in-plane plastic anisotropy to be a draw can having a large ear rate is formed into a draw can having a small ear rate. (EN) Provided are a squeezing die and a squeezing method using the die. The drawing process is usually performed by using a die 4, a punch 5, and a wrinkle retainer 6 as shown in FIG. 3, but the present invention is to solve the problem of the present application by making the shoulder radius 7 of the die 4 different in the circumferential direction. Is the solution.
That is, if the components of the metal plate and the manufacturing process are constant,
Since the peaks and valleys are formed in a specific direction with respect to the sheet passing direction, the ear radius of the squeeze can is determined by making the shoulder radius of the die appropriate for the peaks and valleys. Is to reduce. The contents of the present invention will be described below.
【０００５】耳率を小さくすることを目的とし、缶高さ
に影響を及ぼすと考えられる絞り加工上の因子について
多くの検討を行った。絞り加工は、ポンチ５に力を加
え、絞り込み部金属板８を介して、ダイス肩部金属板
９、ダイス面上金属板１０を変形させる加工であるが、
絞り加工後の缶高さには種々の因子が影響する。金属板
１０を押さえる力、金属板１０とダイス４、しわ押え６
との摩擦力、およびダイス肩半径７等がその因子であ
り、これら因子と缶高さの関係については、前２者は大
きい程またダイス肩半径については小さい方が、缶高さ
は高くなるという結果である。ここで耳率の低減、すな
わち谷部を高く、山部を低くするという点に関し、これ
ら因子の適正化による可能性を検討した。その結果、前
２者の適正化、すなわちしわ押え面、ダイス面の表面粗
度の適正化による摩擦力の最適化、あるいはしわ押え、
ダイス表面を部分的に研削することによる圧下力配分の
最適化等を行っても、十分な耳率の改善はなし得ず、ダ
イス肩半径を、周方向の位置に応じ、適切な寸法とする
ことが最も効果的であることが分かった。そこで、その
ダイス肩半径寸法、およびその周方向長さ等について多
くの検討を行った結果、ダイス肩が、肩半径０．３〜
１．０ｍｍの範囲内で一様な小半径部、０．５〜３．０
ｍｍの範囲内で一様な大半径部、およびその間の肩半径
を有するつなぎ部からなり、（大半径部ダイス肩半径）
／（小半径部ダイス肩半径）＝１．３〜６．０のダイス
により、耳率の小さい絞り缶を得ることができることを
見いだした。ここに、深絞り方法と併せて提供するもの
である。For the purpose of reducing the ear rate, many studies have been made on the factors in drawing which are considered to affect the height of the can. The drawing process is a process of applying a force to the punch 5 to deform the die shoulder metal plate 9 and the die surface metal plate 10 through the drawing metal plate 8.
Various factors affect the height of the can after drawing. Power to press the metal plate 10, metal plate 10 and die 4, wrinkle retainer 6
The frictional force with and the die shoulder radius 7 etc. are the factors. Regarding the relationship between these factors and the can height, the former two are larger and the die shoulder radius is smaller, the can height becomes higher. That is the result. Here, we examined the possibility of optimizing these factors in terms of reducing the ear rate, that is, increasing the valleys and lowering the peaks. As a result, the former two optimizations, namely, the optimization of the frictional force by optimizing the surface roughness of the wrinkle pressing surface and the die surface, or the wrinkle pressing,
Even if the reduction force distribution is optimized by partially grinding the die surface, the ear ratio cannot be improved sufficiently, and the die shoulder radius should be set to an appropriate dimension according to the circumferential position. Proved to be the most effective. Therefore, as a result of many studies on the radius dimension of the die shoulder and the length in the circumferential direction thereof, the die shoulder has a shoulder radius of 0.3 to
Uniform small radius within 1.0 mm, 0.5-3.0
It consists of a large radius part that is uniform in the range of mm and a joint part that has a shoulder radius between them, (large radius part die shoulder radius)
It was found that a squeeze can with a small ear ratio can be obtained by a die of / (small radius part die shoulder radius) = 1.3 to 6.0. It is provided here together with the deep drawing method.
【０００６】以下に、本発明の特許請求の範囲の限定理
由について説明する。絞り加工が進むに従い、ダイス面
上の金属板１０は、板厚が増加しつつ中心方向に絞り込
まれるが、その増加の程度は周方向で異なり、より厚く
なる部分は、缶となった後、谷部となる。ここで、前記
ダイス肩半径と缶高さの関係から、谷部となる部分のダ
イス肩半径を小さくしておけば、谷部となる部分は、よ
り減厚され耳率が小さくなるはずである。以上の考えに
基づき、ダイス肩半径に関し多くの試験を重ね、その適
正範囲を定めた。図１に示すダイス肩半径の小さい部分
（小半径部１）については、その肩半径が、０．３ｍｍ
より小さくなると、絞り加工時、缶壁が破断しやすくな
るため０．３ｍｍを下限とした。また減厚効果の点から
１．０ｍｍを上限とした。一方、ダイス肩半径の大きい
部分（大半径部２）の肩半径は、小半径部の肩半径寸
法、被加工金属板の板厚等を考慮し定めるが、０．５〜
３．０ｍｍとする。０．５ｍｍ以下では、小半径部寸法
とほぼ同じ寸法になり、減厚率が変わらず、また缶壁破
断が起こりやすくなる。一方大半径部肩半径が３．０ｍ
ｍ以上では、小半径部肩半径との寸法差が大きく、絞り
缶の缶壁にしわが発生しやすくなる。また、大半径部肩
半径と小半径部肩半径の比を１．３〜６．０とするが、
１．３以下では、減厚率が大半径部と小半径部で大きく
変わらず、またその比が、６以上では、缶壁にしわが発
生しやすくなる。以上の理由により、上、下限を定め
た。The reasons for limiting the scope of the claims of the present invention will be described below. As the drawing process progresses, the metal plate 10 on the die surface is drawn toward the center while the plate thickness increases, but the degree of increase differs in the circumferential direction, and the thicker part becomes a can after Become Tanibe. Here, from the relationship between the die shoulder radius and the can height, if the die shoulder radius of the valley portion is reduced, the valley portion should be further reduced in thickness and the ear rate should be reduced. . Based on the above idea, many tests were repeated for the die shoulder radius and the appropriate range was determined. Regarding the portion of the die with a small shoulder radius (small radius portion 1) shown in FIG. 1, the shoulder radius is 0.3 mm.
If it becomes smaller, the can wall is likely to break during drawing, so the lower limit was made 0.3 mm. Further, from the viewpoint of the effect of reducing the thickness, the upper limit is 1.0 mm. On the other hand, the shoulder radius of the portion with a large die shoulder radius (large radius portion 2) is determined in consideration of the shoulder radius dimension of the small radius portion, the plate thickness of the metal plate to be processed, etc.
It is 3.0 mm. When the thickness is 0.5 mm or less, the dimension becomes almost the same as the small radius portion, the thickness reduction rate does not change, and the can wall breaks easily. On the other hand, the large radius shoulder radius is 3.0m
When it is m or more, the dimensional difference from the shoulder radius of the small radius portion is large, and wrinkles are likely to occur on the can wall of the squeezed can. Further, the ratio of the shoulder radius of the large radius portion and the shoulder radius of the small radius portion is set to 1.3 to 6.0,
When the ratio is 1.3 or less, the thickness reduction ratio does not largely change between the large radius portion and the small radius portion, and when the ratio is 6 or more, wrinkles are likely to occur on the can wall. For the above reasons, the upper and lower limits are set.
【０００７】ここで、これら小半径部１、大半径部２、
つなぎ部３の周方向長さは、被加工金属板の面内塑性異
方性の状態、缶側壁でのしわの発生のしやすさ等に応じ
て定めることになる。一般に金属板を絞り加工すると、
山部及び谷部の個数はそれぞれ４個ないし６個形成され
る。例えば４個発生する金属板の場合には、ダイス小半
径部１、大半径部２、つなぎ部３がそれぞれ４，４，８
個設けられているダイスを用いればよい。本発明におけ
る円筒深絞り方法においては、ダイス肩の小半径部１、
大半径部２及びつなぎ部３の周方向長さをそれぞれ固定
するものではないが、絞り加工後における缶の外観（見
栄え）を崩さないようにしたいという観点から考える
と、一般には小半径部１と大半径部２とはほぼ同一の長
さにすることが好ましく、つなぎ部の長さは小半径部
（又は大半径部）の長さの約１／４〜１／２程度にする
ことが好ましい。また、小半径部１や大半径部２の肩半
径寸法はそれぞれ一様とするが、小半径部や大半径部内
におけるそれぞれの肩半径寸法は、それぞれの平均肩半
径寸法の±１０％以内であれば、本発明の目的を達成し
うる。なお、山部、谷部の発生位置は同じであるがその
程度が異なる金属板を絞り加工する場合場合には、小半
径部や大半径部の肩半径寸法が異なったダイスを用いな
くとも、しわ押さえ力加減することにより耳率を調整す
るできるので、数多くのダイスをあらかじめ準備してお
く必要はない。本発明ダイスの表面粗度を研削等によっ
て部分的に変えたりすることによってさらに耳率の低い
円筒深絞り缶の成形ができる。Here, these small radius portion 1, large radius portion 2,
The circumferential length of the connecting portion 3 is determined according to the in-plane plastic anisotropy state of the metal plate to be processed, the ease with which wrinkles occur on the side wall of the can, and the like. Generally, when drawing a metal plate,
The number of peaks and valleys is 4 to 6, respectively. For example, in the case of four metal plates, the die small radius portion 1, the large radius portion 2, and the connecting portion 3 are 4, 4, 8 respectively.
Dice provided individually may be used. In the cylindrical deep drawing method of the present invention, the small radius portion 1 of the die shoulder,
The circumferential lengths of the large radius portion 2 and the connecting portion 3 are not fixed, but from the viewpoint of keeping the appearance (look) of the can after drawing processing, in general, the small radius portion 1 And the large radius portion 2 are preferably approximately the same length, and the length of the connecting portion is approximately 1/4 to 1/2 of the length of the small radius portion (or the large radius portion). preferable. Also, the shoulder radius dimensions of the small radius portion 1 and the large radius portion 2 are uniform, but the shoulder radius dimensions within the small radius portion and the large radius portion are within ± 10% of the respective average shoulder radius dimensions. If so, the object of the present invention can be achieved. Incidentally, when the metal plate having the same position of the peaks and the valleys but having a different degree is drawn, even if the dice having different shoulder radius dimensions of the small radius portion and the large radius portion are not used, Since the ear rate can be adjusted by adjusting the wrinkle holding force, it is not necessary to prepare many dice in advance. By partially changing the surface roughness of the die of the present invention by grinding or the like, it is possible to form a cylindrical deep-drawn can having a lower earring rate.
【０００８】[0008]
【実施例】以下に、実施例について説明する。重量比で
Ｃ：０．０３８％、Ｍｎ：０．２８％、Ｓｉ：０．０１
％、Ｐ：０．０１８％、ＡＬ：０．０５２％で、残部が
鉄および不可避的不純物からなる鋼を、転炉で溶製し、
連続鋳造によりスラブとし、熱間圧延により厚み２．０
ｍｍの熱延板とした。次いで、冷間圧延により０．３０
ｍｍと０．３５ｍｍの２種類の板厚とし、０．３５ｍｍ
のものは、次いで箱型焼鈍、スキンパスを行った。その
後、板厚０．３０ｍｍ、０．３５ｍｍのいずれについて
もすずめっきを行い、ぶりき板とした。この２種類のぶ
りき板を、表１のダイス肩半径を有する円筒深絞り用ダ
イスで、絞り比１．６（ポンチ径；８７ｍｍ）の絞り加
工を行い耳率の改善効果を評価した。なお、表１のダイ
スの小半径部、大半径部、そのつなぎ部は、ダイス肩部
その周上において、それぞれ４箇所、４箇所、８箇所、
ダイス中心に対して点対称に配置し、１箇所の範囲をそ
れぞれ５０度、２６度、７度とした。そして絞り加工に
おいては、谷部に、小半径部、山部に大半径部を対応さ
せた。表１の結果から明かなように、本発明の円筒深絞
り用ダイスは、耳率の小さな絞り缶を得るのに適するこ
とが分かる。EXAMPLES Examples will be described below. By weight ratio, C: 0.038%, Mn: 0.28%, Si: 0.01
%, P: 0.018%, AL: 0.052%, with the balance being iron and unavoidable impurities, and smelting in a converter.
Slab is made by continuous casting, and thickness is 2.0 by hot rolling.
It was a hot rolled sheet of mm. Then 0.30 by cold rolling
mm and 0.35 mm, two types of thickness, 0.35 mm
Then, box annealing and skin pass were performed. After that, tin plating was performed on both the plate thicknesses of 0.30 mm and 0.35 mm to obtain tinplate. These two types of brass plates were drawn with a cylindrical deep drawing die having a die shoulder radius shown in Table 1 at a drawing ratio of 1.6 (punch diameter; 87 mm), and the effect of improving the ear ratio was evaluated. The small radius portion, the large radius portion, and the connecting portion of the dies in Table 1 are 4 locations, 4 locations, and 8 locations on the circumference of the die shoulder portion, respectively.
They were arranged point-symmetrically with respect to the center of the die, and the ranges of one location were 50 degrees, 26 degrees, and 7 degrees, respectively. In the drawing process, the small radius portion corresponds to the valley portion and the large radius portion corresponds to the mountain portion. As is clear from the results in Table 1, the cylindrical deep-drawing die of the present invention is suitable for obtaining a squeezing can having a small ear rate.
【０００９】[0009]
【表１】 [Table 1]
【００１０】[0010]
【発明の効果】ダイスの肩が、小半径部、大半径部、つ
なぎ部からなる本発明ダイスを用い、その小半径部を絞
り缶の谷部に対応させ、絞り加工を行うことにより耳率
の点で優れた絞り缶を得ることができる。[Effects of the Invention] By using the die of the present invention in which the shoulder of the die has a small radius portion, a large radius portion, and a connecting portion, the small radius portion is made to correspond to the valley portion of the squeezing can, and drawing is performed to obtain the ear ratio. It is possible to obtain a squeezing can excellent in that point.
【図１】小半径部、大半径部、そのつなぎ部を有する円
筒深絞り用ダイスの模式図である。FIG. 1 is a schematic view of a cylindrical deep drawing die having a small radius portion, a large radius portion, and a connecting portion thereof.
【図２】図１のＡ−Ｏ−Ｂ断面図である。FIG. 2 is a cross-sectional view taken along the line AOB of FIG.
【図３】円筒深絞り加工の模式図である。FIG. 3 is a schematic view of cylindrical deep drawing.
【符号の説明】 １ 小半径部 ２ 大半径部 ３ つなぎ部 ４ ダイス ５ ポンチ ６ しわ押え ７ 肩半径 ８ 絞り込み部金属板 ９ ダイス肩部金属板 １０ ダイス面上金属板[Explanation of symbols] 1 small radius part 2 large radius part 3 connecting part 4 die 5 punch 6 wrinkle presser 7 shoulder radius 8 narrowing part metal plate 9 die shoulder metal plate 10 metal plate on die surface
Claims (2)
が、 小半径部、大半径部及びこれらをつなぐつなぎ部からな
り、 小半径部の肩半径が０．３〜１．０ｍｍであり、 大半径部の肩半径が０．５〜３．０ｍｍであり、 （大半径部肩半径）／（小半径部肩半径）＝１．３〜６．０である 円筒絞り缶成形用ダイス。1. A die for processing, wherein the die shoulder comprises a small radius portion, a large radius portion and a connecting portion connecting them, and the shoulder radius of the small radius portion is 0.3 to 1.0 mm. The shoulder radius of the radius part is 0.5 to 3.0 mm, and the (large radius part shoulder radius) / (small radius part shoulder radius) = 1.3 to 6.0.
なる被加工金属板の周方向位置とダイス肩小半径部とを
対応させるように配置し、 絞り缶を成形した場合に絞り缶の山部となる被加工金属
板の周方向位置とダイス肩大半径部とを対応させるよう
に配置し、 絞り缶を成形する円筒深絞り方法。2. A diaphragm can is formed by arranging it so that the circumferential position of the metal plate to be processed, which becomes the valley of the diaphragm can when forming the can, and the small radius portion of the die shoulder correspond to each other. A cylindrical deep-drawing method in which a drawn can is formed by arranging the circumferential position of the metal plate to be the peak of the can and the large radius of the die shoulder so as to correspond to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3295250A JP2562756B2 (en) | 1991-08-26 | 1991-08-26 | Cylinder deep drawing die and cylindrical deep drawing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3295250A JP2562756B2 (en) | 1991-08-26 | 1991-08-26 | Cylinder deep drawing die and cylindrical deep drawing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0550152A JPH0550152A (en) | 1993-03-02 |
| JP2562756B2 true JP2562756B2 (en) | 1996-12-11 |
Family
ID=17818160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3295250A Expired - Fee Related JP2562756B2 (en) | 1991-08-26 | 1991-08-26 | Cylinder deep drawing die and cylindrical deep drawing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2562756B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4602603B2 (en) * | 2000-09-13 | 2010-12-22 | アスモ株式会社 | Yoke manufacturing method |
| JP4598938B2 (en) * | 2000-09-29 | 2010-12-15 | 大和製罐株式会社 | Can lid curling device |
| DE602004026111D1 (en) | 2003-12-19 | 2010-04-29 | Nat Inst Of Advanced Ind Scien | METHOD FOR TESTING NUCLEIC ACIDS USING THEM AND THE NUCLEIC ACID END USED THEREFOR |
| JP6016368B2 (en) * | 2012-01-31 | 2016-10-26 | 昭和電工パッケージング株式会社 | Die for drawing |
-
1991
- 1991-08-26 JP JP3295250A patent/JP2562756B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0550152A (en) | 1993-03-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2011239981B2 (en) | Can manufacture | |
| Niranjan et al. | Deep drawability of commercial purity aluminum sheets processed by groove pressing | |
| JP2562756B2 (en) | Cylinder deep drawing die and cylindrical deep drawing method | |
| JP2761594B2 (en) | Manufacturing method of high strength ultra-thin steel sheet for cans with excellent in-plane anisotropy | |
| US4122700A (en) | Process for forming sheet metal stock | |
| US5467811A (en) | Thin cast strip of austenitic stainless steel and cold-rolled sheet in thin strip form and processes for producing said strip and sheet | |
| JP3968165B2 (en) | Modified cross-section strip and its manufacturing method and manufacturing method | |
| JPH11503490A (en) | Method for producing steel sheet or steel strip for forming a can and steel sheet or steel strip obtained by the method | |
| JP3105785B2 (en) | Side wall thinned metal can | |
| JPH0866730A (en) | Deep draw forming method for metallic sheet | |
| JPH04351229A (en) | Method for executing warm deep-drawing of aluminum alloy sheet | |
| JPH03104855A (en) | Ni diffusion-treated steel sheet, ni-plated steel sheet, and production of ni-plated steel sheet | |
| SU1696225A1 (en) | Method for making bimetallic sheet strips and bands | |
| JP3937631B2 (en) | Method for manufacturing ring-shaped product with complex cross-section | |
| JP3647932B2 (en) | Method for producing steel plate for cans with excellent earring properties | |
| JP3276538B2 (en) | High formability cold rolled steel sheet with excellent mold resistance | |
| JPH0263650A (en) | Production of austenitic stainless strip | |
| JP3591475B2 (en) | Method for producing thin steel sheet having good surface properties and DR rolling mill | |
| JPH0711399A (en) | Production of aluminum alloy sheet free from generation of stretcher strain mark | |
| JPH04351230A (en) | Warm bulging method for aluminum alloy sheet | |
| JP2003220419A (en) | Forming rolls and forming method | |
| JPH0749296B2 (en) | Method for manufacturing thinned nickel-plated metal can for battery | |
| Yu et al. | Experimental study on asynchronous tandem rolling with heavy reduction | |
| Kawai et al. | Press-Formability of Aluminum Alloy Sheets of Solution-Hardening Type | |
| JPH05337560A (en) | Thin plate excellent in drawing formability for press |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 19960709 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |