JPH01289501A - Manufacture of deformed strip - Google Patents
Manufacture of deformed stripInfo
- Publication number
- JPH01289501A JPH01289501A JP2729888A JP2729888A JPH01289501A JP H01289501 A JPH01289501 A JP H01289501A JP 2729888 A JP2729888 A JP 2729888A JP 2729888 A JP2729888 A JP 2729888A JP H01289501 A JPH01289501 A JP H01289501A
- Authority
- JP
- Japan
- Prior art keywords
- roll
- groove
- stock
- strip
- flat 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.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 19
- 238000005096 rolling process Methods 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims description 24
- 239000000463 material Substances 0.000 description 5
- 230000001788 irregular Effects 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/42—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for step-by-step or planetary rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/08—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling structural sections, i.e. work of special cross-section, e.g. angle steel
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Abstract
Description
【発明の詳細な説明】
(産業上の利用分野)
本発明は電気、電子部品の端子、パワートランジスター
用リードフレーム、継電器のリレー切片等の製造に用い
られる巾方向に厚さの異なる段差を有する異形条の製造
法に関するものである。Detailed Description of the Invention (Industrial Field of Application) The present invention has steps with different thicknesses in the width direction, which are used in the manufacture of terminals for electrical and electronic components, lead frames for power transistors, relay sections for relays, etc. This relates to a method for manufacturing irregularly shaped strips.
(従来の技術)
一般に上記異形条としては、第6図(イ)、(ロ)、(
ハ)、(ニ)に示す断面形状の異形条が多用されており
、通常切削法、異形溝圧延法、押出法、用法法等により
造られている。切削法は薄くなる部分を削り取るもので
、多量の切削屑を発生する歩留まりの悪い方法である。(Prior art) In general, the above-mentioned irregularly shaped strips are
The irregularly shaped strips having the cross-sectional shapes shown in c) and (d) are often used, and are manufactured by the usual cutting method, irregular groove rolling method, extrusion method, usage method, etc. The cutting method involves scraping off the thinned portion, and is a method with poor yields that generates a large amount of cutting waste.
異形溝圧延法は所望の断面形状とするのに、徐々に変化
する溝を設けた多数のロールで順次圧延するもので、1
回の圧延で複雑な形状に加工すると、加工歪のバランス
が取れず、不用な波打ちを起すところから多数回の加工
を必要とする。従って多数のロールを使用するばかりか
、徐々に変化する溝の設計が轄しく、製造コストが高く
なり、電子部品のような少量多品種の製造には適さない
方法である。押出法はダイスを通してビレットを所望の
断面形状に押出加工するもので、容易に異形条を製造す
ることができる。しかし寸法精度が劣るばかりか、本質
的に短尺なものとなるため、現在の長尺化の要求に反す
る方法である。また用法法はダイスを通して線材を用法
加工するもので、比較的容易に異形加工を行なうことが
できる。しかしながら高加工率が取れないばかりか、も
ともと線材の加工が主体であり、広巾材の加工には適さ
ない方法でおる。The irregular groove rolling method involves sequentially rolling a number of rolls with gradually changing grooves to obtain a desired cross-sectional shape.
If a complex shape is formed by rolling multiple times, the processing strain cannot be balanced and unnecessary waving may occur, requiring multiple processing steps. Therefore, not only a large number of rolls are used, but the design of the grooves changes gradually, which increases manufacturing costs, and the method is not suitable for manufacturing a wide variety of products in small quantities, such as electronic parts. In the extrusion method, a billet is extruded into a desired cross-sectional shape through a die, and irregularly shaped strips can be easily manufactured. However, not only is the dimensional accuracy inferior, but the length is essentially short, so this method is contrary to the current demand for lengthening. Moreover, the method of use is to process the wire through a die, and it is possible to process the wire into irregular shapes relatively easily. However, not only is it not possible to obtain a high processing rate, but the method is originally based on processing wire rods, and is not suitable for processing wide materials.
近年広巾の異形条加工用として三角ダイスを用いた特殊
往復動圧延法が提案された。この方法は条を長手方向に
圧延し、三角ダイスの角の部分で巾方向に拡げ加工を行
なうものであるが、−往復の圧延での巾拡げ量が少なく
、多数回の加工動作を必要とする生産性の劣るものであ
った。In recent years, a special reciprocating rolling method using a triangular die has been proposed for processing wide irregularly shaped strips. In this method, the strip is rolled in the longitudinal direction and expanded in the width direction using the corners of a triangular die. The productivity was poor.
一方線材や条材を長手方向と直角に、即ち巾方向に圧延
して、通常の圧延では得られない素材中の数倍大きな巾
拡がりを得る方法が知られている。この方法は平板上を
往復転動する圧下ロールを用い、平板と圧下ロール間の
ロール軸方向に線材や条材を圧入し、圧下ロールの転動
により線材や条材を巾方向に圧延するものである。On the other hand, a method is known in which a wire rod or strip is rolled perpendicularly to the longitudinal direction, that is, in the width direction, to obtain a width several times larger than that in the material, which cannot be obtained by normal rolling. This method uses a reduction roll that reciprocates on a flat plate, presses the wire or strip in the roll axis direction between the flat plate and the reduction roll, and rolls the wire or strip in the width direction by the rolling of the reduction roll. It is.
(発明が解決しようとする問題点〕
上記異形条の製造法は何れも一長一短があり、寸法精度
の優れた長尺異形条を能率よく製造することができない
ものであった。例えば三角ダイスを用いた特殊往復動圧
延法でも、上記の如く巾方向の拡げ加工において、−往
復の圧延による中拡げ量はそれほど大きくなく、異形条
を製造するのに多数回の加工動作を必要とする加工速度
の遅い、生産性の劣るものである。(Problems to be Solved by the Invention) All of the above-mentioned methods for manufacturing irregularly shaped strips have advantages and disadvantages, and it is not possible to efficiently manufacture long irregularly shaped strips with excellent dimensional accuracy. For example, using a triangular die Even with the special reciprocating rolling method, as mentioned above, in the width direction widening process, the amount of medium expansion due to reciprocating rolling is not so large, and the processing speed is low, which requires multiple processing operations to produce irregularly shaped strips. It is slow and less productive.
本発明はこれに鑑み種々検討の結果、条材を能率よく巾
方向に圧延すると共に、巾方向に厚さの異なる段差を精
度良く形成することができる異形条の製造法を開発した
もので、平板上で往復転動する圧下ロールの表面に軸方
向の凹溝を形成し、平板と圧下ロール間のロール軸方向
に、表面長手方向に凹溝の側辺に対応する溝を形成した
素条を間欠的に挿入し、凹溝以外で素条を巾方向に圧延
して素条の巾方向に段差を形成することを特徴とするも
のである。In view of this, as a result of various studies, the present invention has developed a method for manufacturing irregularly shaped strips that can efficiently roll strips in the width direction and form steps with different thicknesses in the width direction with high precision. An axial groove is formed on the surface of a reduction roll that reciprocates on a flat plate, and grooves corresponding to the sides of the groove are formed in the longitudinal direction of the surface in the axial direction of the roll between the flat plate and the reduction roll. is inserted intermittently, and the strip is rolled in the width direction in a region other than the concave groove to form a step in the width direction of the strip.
即ち本発明は第1図(イ)、(ロ)に示すように、平板
(2)上を往復転動する圧下ロール(3)の表面に、ロ
ール軸方向の凹溝(4)を形成し、平板(2)に対して
圧下ロール(3)の軸を傾けて平板(2)と圧下ロール
(3)間の間隙をロール軸方向に徐々に狭め、平板(2
)と圧下ロール(3)間のロール軸方向に表面長手方向
に凹溝(4)の側辺に対応する溝を形成した素条(4)
を長手方向に張力を付加して間欠的に挿入し、素条(1
)を凹溝(4)部以外で巾方向に圧延して素条(1)の
巾方向に段差を形成するものである。That is, as shown in FIGS. 1(A) and 1(B), the present invention forms concave grooves (4) in the roll axis direction on the surface of a reduction roll (3) that reciprocates on a flat plate (2). , the axis of the roll-down roll (3) is tilted with respect to the flat plate (2), the gap between the flat plate (2) and the roll-down roll (3) is gradually narrowed in the roll axis direction, and the flat plate (2) is
) and the reduction roll (3), the strip (4) has grooves corresponding to the sides of the concave grooves (4) formed in the longitudinal direction of the surface in the roll axis direction.
is inserted intermittently while applying tension in the longitudinal direction, and the strip (1
) is rolled in the width direction at a portion other than the concave groove (4) to form a step in the width direction of the strip (1).
平板(2)と圧下ロール(3)はハウジング(6)内に
設けて平板(2)を支持すると共に、圧下ロール(3)
上にバックアップロール(5)を取付け、該バックアッ
プロール(5)をハウジング(6)上辺に設けた支持板
(7)によりバックアップする。このようにして圧下ロ
ール(3)とバックアップロール(5)をロール軸と直
角方向に、例えばクランク機構による動力伝達装置によ
り転動し、図に点線で示す(3a)、(5a)から(3
b)、(5b)ノヨウニ左右ニ転動させることを繰返し
て素条(1)を凹溝(4)以外で巾方向に圧延し、圧下
ロール(3)が図に示す(3a)又は(3b)の位置に
転動し、圧下ロール(3)が素条(1)をかみ込んでい
ない時に、表面長手方向に凹溝(4)の側辺に対応する
溝を形成した素条(1)を長手方向に張力を付加して一
定長さだけ間欠的に挿入して圧延する。The flat plate (2) and the roll-down roll (3) are provided in the housing (6) to support the flat plate (2), and the roll-down roll (3)
A backup roll (5) is attached on top, and the backup roll (5) is backed up by a support plate (7) provided on the upper side of the housing (6). In this way, the reduction roll (3) and the backup roll (5) are rolled in a direction perpendicular to the roll axis by a power transmission device using, for example, a crank mechanism.
b), (5b) Repeat rolling left and right to roll the strip (1) in the width direction outside the concave groove (4), so that the rolling roll (3) forms the shape (3a) or (3b) shown in the figure. ) and when the reduction roll (3) is not biting the web (1), the web (1) has grooves formed in the longitudinal direction of its surface corresponding to the sides of the concave grooves (4). It is rolled by applying tension in the longitudinal direction and intermittently inserting it for a certain length.
素条(1)の長手方向に張力を付加するには、圧下ロー
ル(3)の軸方向の前後にキャタピラキャプスタンを設
けて挿入する素条(1)を挾持するか、又は第2図に示
すようにピンチロールのような上下一対のロール(8)
、(9)を設けて挿入する素条(1)を挾持し、前方ロ
ール(8)又はキャプスタンを制動し、後方ロール(9
)又はキャプスタンを間欠的に駆動せしめる。To apply tension in the longitudinal direction of the strip (1), install caterpillar capstans at the front and back of the roll (3) in the axial direction to clamp the inserted strip (1), or as shown in Fig. 2. A pair of upper and lower rolls like pinch rolls (8) as shown
, (9) are provided to clamp the material (1) to be inserted, brake the front roll (8) or capstan, and press the rear roll (9).
) or drive the capstan intermittently.
また平板(2)と圧下ロール(3)間に、第3図に示す
ように表面長手方向に凹溝部の側辺に対応する溝(1a
)を形成した素条(1)を挿入圧延するには、圧下ロー
ル(3)の表面軸方向に設けた凹溝(4)を軸方向に徐
々に深くし、凹溝(4)側辺が条(1)の厚肉側段差部
(1C)と接触プることなく、素条(1)の薄肉側(1
b)を巾方向に圧延する。素条(1)の長手方向に溝(
1a)を形成するには、予じめ溝ロールを通して凹溝部
の側辺に対応する溝を長手方向に形成するか、又は第2
図に示す前方ロール(8)に代えて、第4図に示すよう
に平ロール(10)と溝付はロール(11)を用い、こ
れを無駆動として圧下ロールの後方ロールを間欠的に駆
動することにより、素条(1)の長手方向に溝(1a)
を形成する。このとき厚肉側段差部(1C)を正確な寸
法に形成する。Also, between the flat plate (2) and the reduction roll (3), there is a groove (1a) corresponding to the side of the concave groove in the longitudinal direction of the surface, as shown in FIG.
) In order to insert and roll the raw material (1) having formed with The thin side (1
b) is rolled in the width direction. The groove (
In order to form 1a), grooves corresponding to the sides of the concave groove portion are formed in the longitudinal direction through a groove roll in advance, or a second
Instead of the front roll (8) shown in the figure, a flat roll (10) and a grooved roll (11) are used as shown in Figure 4, and these are not driven and the rear roll of the reduction roll is intermittently driven. By doing so, grooves (1a) are formed in the longitudinal direction of the strip (1).
form. At this time, the thick side step portion (1C) is formed to have accurate dimensions.
本発明によれば素条を巾方向に主に薄肉相当部分を徐々
に加工するもので、薄肉部に加工不能な波釘を生じるこ
とがなく、1回の送り量も数十m程度で加工に無理がな
い。また断面は徐々に変形し、素材には張力が付加され
ているため、素材が一定位置に保たれ、巾方向の圧延時
に曲げを少なくでき圧延毎の圧延ロールの凹溝とのずれ
が生じることはない。また素条の表面長手方向に所望の
段差に相当する溝を予じめ形成することにより張力がな
いか又は少ない場合でも巾方向の圧延時の曲げの影響も
受けず、製品の品質が安定し段差部の形成が精度よく行
なえる。またこれに張力をかければ更に段差部の形状、
寸法が一層正確なものとなる。According to the present invention, the thin-walled portions of the strip are gradually processed in the width direction, so there is no unprocessable corrugation in the thin-walled portions, and the feed distance per time is approximately several tens of meters. It's not unreasonable. In addition, since the cross section is gradually deformed and tension is applied to the material, the material is kept in a fixed position and bending can be reduced during rolling in the width direction, resulting in misalignment with the concave groove of the rolling roll after each rolling. There isn't. In addition, by forming grooves corresponding to the desired steps in the longitudinal direction of the surface of the raw material in advance, even when there is no or little tension, the quality of the product is stable because it is not affected by bending during rolling in the width direction. The step portion can be formed with high precision. In addition, if tension is applied to this, the shape of the stepped part can be further changed.
The dimensions will be more accurate.
以上第6図(イ)に示す異形条の製造について説明した
が、これに限るものではなく、第6図(ロ)及び(ハ)
は勿論、(ニ)についても、第6図(イ)に示す異形条
を加工した後、これを反転して加工することにより容易
に製造することができる。更に圧下ロールの後方で加工
した素条を挾持するロールに、第5図に示すような異形
条の仕上ロールを用いれば、異形条の形状、寸法を一層
正確に仕上げることができる。Although the manufacturing of the irregularly shaped strips shown in Figure 6 (A) has been explained above, it is not limited to this, and Figures 6 (B) and (C)
Of course, (d) can also be easily manufactured by processing the irregularly shaped strip shown in FIG. 6(a) and then inverting and processing this. Furthermore, if a finishing roll with irregularly shaped strips as shown in FIG. 5 is used as the roll that clamps the worked strip behind the reduction roll, the shape and dimensions of the irregular strips can be finished more accurately.
(実施例)
(1)第1図(イ)、(ロ)に示す方法により、厚さ3
m、巾501nInの銅条を用い、第6図(イ)に示す
断面形状の異形条を製造した。先ず銅条の表面に巾16
#の間隔で巾3M、深さ2Mの溝を圧延により形成し、
これにユニットテンション10KI/rrvAを付加し
、送り30mで圧延し、厚肉厚ざ3調、薄肉厚さ1Mの
異形条とした。1qられた異形条は多少の曲を生じてい
たが、段差部の形状は圧延溝のままで、極めて良好であ
った。(Example) (1) By the method shown in Fig. 1 (a) and (b), a thickness of 3
A copper strip having a width of 501 nIn and a width of 501 nIn was used to produce a deformed strip having the cross-sectional shape shown in FIG. 6(A). First, a width of 16 mm was applied to the surface of the copper strip.
Grooves with a width of 3M and a depth of 2M are formed at intervals of # by rolling,
A unit tension of 10 KI/rrvA was added to this, and the strip was rolled at a feed rate of 30 m to obtain a deformed strip with a thick wall thickness of 3 mm and a thin wall thickness of 1 M. Although the 1q irregularly shaped strip had some curvature, the shape of the stepped portion remained as a rolled groove and was in very good condition.
本発明によれば、各種異形条の巾方向の圧延時に厚肉部
を圧延しないため、圧下ロールの凹溝部はほとんど変わ
ることなく、深さを変えるのみでよく、圧下ロールの製
造コストが安く、張力をかければざらに製品の品質が向
上する。According to the present invention, since the thick part is not rolled when rolling various irregularly shaped strips in the width direction, the concave groove portion of the reduction roll hardly changes and only the depth needs to be changed, and the manufacturing cost of the reduction roll is low. Applying tension will significantly improve the quality of the product.
また圧下ロールの前後に制動ロールと駆動ロールを配置
することにより、タンデム加工が可能になる等製造が容
易で異形条の製造コストを下げ、更には電気、電子部品
用の多品種少量生産に適するもので、工業上顕著な効果
を奏するものである。In addition, by arranging a brake roll and a drive roll before and after the reduction roll, it is possible to perform tandem processing, making it easy to manufacture and reducing the manufacturing cost of irregularly shaped strips. Furthermore, it is suitable for high-mix, low-volume production of electrical and electronic parts. It has a remarkable industrial effect.
第1図(イ)、(ロ)は本発明製造法の一例を示すもの
で、(イ)は正面図、(ロ)は側面図、第2図は第1図
に示す製造法における素条の張力付加方法の一例を示す
側面図、第3図は第1図に示す製造法における素条の変
形状態の一例を示す平面図、第4図は溝付はロールの一
例を示す正面図、第5図は異形条の仕上げ圧延ロールの
一例を示す正面図、第6図(イ)、(ロ)、(ハ)、(
ニ)はそれぞれ異なる異形条の断面形状を示すものであ
る。
1・・・素条、2・・・平板、3・・・圧下ロール、4
・・・凹溝、5・・・バックアップロール、6・・・ハ
ウジング、
8・・・前方ロール、9・・・後方ロール第5図
第6図
=」]=[l=Figures 1 (a) and (b) show an example of the manufacturing method of the present invention, in which (a) is a front view, (b) is a side view, and Figure 2 shows the fabric in the manufacturing method shown in Figure 1. 3 is a plan view showing an example of the deformed state of the filament in the manufacturing method shown in FIG. 1; FIG. 4 is a front view showing an example of the grooved roll; Figure 5 is a front view showing an example of a finishing roll for irregularly shaped strips, Figures 6 (A), (B), (C), (
d) shows the cross-sectional shapes of different irregularly shaped strips. 1... Plain strip, 2... Flat plate, 3... Reduction roll, 4
...Concave groove, 5...Backup roll, 6...Housing, 8...Front roll, 9...Back roll
Claims (2)
向の凹溝を形成し、平板と圧下ロール間のロール軸方向
に、表面長手方向に凹溝の側辺に対応する溝を形成した
素条を間欠的に挿入し、凹溝以外で素条を巾方向に圧延
して素条の巾方向に段差を形成することを特徴とする異
形条の製造法。(1) An axial groove is formed on the surface of the reduction roll that reciprocates on a flat plate, and grooves corresponding to the sides of the groove are formed in the longitudinal direction of the surface in the roll axis direction between the flat plate and the reduction roll. A method for manufacturing irregularly shaped strips, characterized by intermittently inserting the formed strips and rolling the strips in the width direction in a region other than the concave groove to form steps in the width direction of the strips.
面長手方向に、凹溝の側辺に対応する溝を形成し、後方
で素条をロールにより挟持して、平板と圧下ロール間に
間欠的に挿入する特許請求の範囲第1項記載の異形条の
製造法。(2) In front of the reduction roll, grooves corresponding to the sides of the concave grooves are formed in the longitudinal direction of the surface of the web using a grooving roll, and at the rear, the web is held between the rolls and placed between the flat plate and the reduction roll. A method for manufacturing a deformed strip according to claim 1, in which the strip is inserted intermittently.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2729888A JPH0698429B2 (en) | 1988-02-08 | 1988-02-08 | Manufacturing method of modified strip |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2729888A JPH0698429B2 (en) | 1988-02-08 | 1988-02-08 | Manufacturing method of modified strip |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9981584A Division JPS60244435A (en) | 1984-05-18 | 1984-05-18 | Production of irregular shaped bar |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH01289501A true JPH01289501A (en) | 1989-11-21 |
JPH0698429B2 JPH0698429B2 (en) | 1994-12-07 |
Family
ID=12217183
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2729888A Expired - Lifetime JPH0698429B2 (en) | 1988-02-08 | 1988-02-08 | Manufacturing method of modified strip |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0698429B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015079644A1 (en) * | 2013-11-28 | 2015-06-04 | 新日鐵住金株式会社 | Steel plate material, method for producing same and device for producing same, and method for producing press molded article using said steel plate material |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60244435A (en) * | 1984-05-18 | 1985-12-04 | Furukawa Electric Co Ltd:The | Production of irregular shaped bar |
-
1988
- 1988-02-08 JP JP2729888A patent/JPH0698429B2/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60244435A (en) * | 1984-05-18 | 1985-12-04 | Furukawa Electric Co Ltd:The | Production of irregular shaped bar |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015079644A1 (en) * | 2013-11-28 | 2015-06-04 | 新日鐵住金株式会社 | Steel plate material, method for producing same and device for producing same, and method for producing press molded article using said steel plate material |
CN105813773A (en) * | 2013-11-28 | 2016-07-27 | 新日铁住金株式会社 | Steel plate material, method for producing same and device for producing same, and method for producing press molded article using said steel plate material |
JPWO2015079644A1 (en) * | 2013-11-28 | 2017-03-16 | 新日鐵住金株式会社 | Steel plate material manufacturing method and manufacturing apparatus |
US10239105B2 (en) | 2013-11-28 | 2019-03-26 | Nippon Steel & Sumitomo Metal Corporation | Blank steel plate, production method and production device therefor, and production method for press-formed product using blank steel plate |
Also Published As
Publication number | Publication date |
---|---|
JPH0698429B2 (en) | 1994-12-07 |
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