JP2003290842A - Press forming device and its die - Google Patents
Press forming device and its dieInfo
- Publication number
- JP2003290842A JP2003290842A JP2002094142A JP2002094142A JP2003290842A JP 2003290842 A JP2003290842 A JP 2003290842A JP 2002094142 A JP2002094142 A JP 2002094142A JP 2002094142 A JP2002094142 A JP 2002094142A JP 2003290842 A JP2003290842 A JP 2003290842A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- press
- blank material
- die
- blank
- 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
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Landscapes
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、薄板と厚板が一体
として構成されているブランク材をプレス成形するプレ
ス成形装置及びその金型に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a press forming apparatus for press forming a blank material in which a thin plate and a thick plate are integrally formed, and a die for the same.
【０００２】[0002]
【従来の技術】従来、薄板と厚板が一体として構成され
ているブランク材をプレス成形することに関連する技術
として、特公昭４４−２４７６３号公報に、厚みを異に
する板材を突き合わせ、その突き合わせ縁を溶接して素
材平板を作り、その素材平板をプレス成形して車体部分
を形成する自動車の車体部分の製造方法が開示されてい
る。そして、一般的に薄板と厚板とから構成されるブラ
ンク材をプレス成形する場合には、薄板と厚板の段差に
略相当する位置に板厚差を吸収するための段差部を形成
した金型を用いてプレス成形している。2. Description of the Related Art Conventionally, as a technique related to press-molding a blank material in which a thin plate and a thick plate are integrally formed, as disclosed in Japanese Patent Publication No. 44-24763, a plate material having a different thickness is butted. A method of manufacturing a vehicle body portion of an automobile is disclosed in which a butt edge is welded to form a material flat plate and the material flat plate is press-formed to form a vehicle body portion. When a blank material generally composed of a thin plate and a thick plate is press-molded, a metal having a step portion for absorbing the plate thickness difference is formed at a position substantially corresponding to the step between the thin plate and the thick plate. It is press molded using a mold.
【０００３】また、他の関連技術として、特開平７−２
９０１８２号公報には、ブランク材を構成する薄板と厚
板との板厚差に相当する段差部を金型に形成すると共
に、前記段差部の形成位置を薄板と厚板との溶接部から
厚板側に偏倚した位置にし、溶接部を厚板の溶接部寄り
の端部に亘って薄板と同等の厚さに鍛圧し、溶接部の表
面の凹凸を解消するプレス成形方法及び装置が開示され
ている。Further, as another related technique, Japanese Patent Laid-Open No. 7-2
In Japanese Patent No. 90182, a step portion corresponding to a plate thickness difference between a thin plate and a thick plate forming a blank material is formed in a mold, and a position where the step portion is formed is changed from a welded portion between the thin plate and the thick plate to a thickness. Disclosed is a press forming method and apparatus for locating the welded portion on the plate side, forging the welded portion to a thickness equivalent to that of the thin plate over the end portion of the thick plate near the welded portion, and eliminating unevenness on the surface of the welded portion. ing.
【０００４】[0004]
【発明が解決しようとする課題】ところで、例えば図２
に示すように、薄板４１と厚板４２が固着部４３で溶接
され一体として構成されているブランク材４０を、その
段差４４を雄型５０の上側面５１と下側面５２との間に
介在する段差部５３に略対応させ、雄型５０と雌型６０
によりプレス成形する場合、雄型５０の段差部５３の位
置に於いてブランク材４０の薄板４１の部分にひけ４５
が発生してしまう。かようなひけの発生は、製品の品質
を低下させ、又は後処理の工程を必要にし製造工程の効
率化を妨げることになる。また、前記ひけが発生したブ
ランク材４０の後処理では、ブランク材４０に波或いは
シワが形成されてしまう場合がある。By the way, for example, referring to FIG.
As shown in FIG. 4, the blank material 40 in which the thin plate 41 and the thick plate 42 are welded at the fixing portion 43 to be integrally formed is provided with the step 44 between the upper side surface 51 and the lower side surface 52 of the male die 50. Approximately corresponding to the step portion 53, the male mold 50 and the female mold 60
In the case of press-molding by means of the above-mentioned method, at the position of the step portion 53 of the male die 50, the sinker 45 is formed on the thin plate 41 of the blank 40.
Will occur. The occurrence of such sink marks deteriorates the quality of the product or requires a post-treatment step and hinders the efficiency of the manufacturing process. Further, in the post-treatment of the blank material 40 in which the sink mark has occurred, waves or wrinkles may be formed on the blank material 40.
【０００５】本発明は上記課題に鑑み提案するものであ
って、薄板と厚板が一体として構成されているブランク
材をプレス成形する際に、金型の段差部の位置に於ける
ブランク材の薄板部分にひけが発生することを無くす或
いは極力防止することができるプレス成形装置及びプレ
ス成形装置の金型を提供することを目的とする。The present invention is proposed in view of the above problems, and when press-forming a blank material in which a thin plate and a thick plate are integrally formed, the blank material at the position of the step portion of the mold is An object of the present invention is to provide a press molding apparatus and a mold of the press molding apparatus capable of eliminating or minimizing the occurrence of sink marks in the thin plate portion.
【０００６】[0006]
【課題を解決するための手段】本発明のプレス成形装置
は、薄板と厚板が段差を介して一体として構成されてい
るブランク材をプレス成形するプレス成形装置であっ
て、プレス成形する一方の金型の上側面と下側面が傾斜
する段差部を介して連続し、プレス工程で該ブランク材
の段差を該金型の段差部に沿って下降する、或いは段差
部を上方から下方に移動することを特徴とする。前記構
成により、プレス成形時に傾斜する段差部がブランク材
の段差箇所を上方に押圧し、ひけの発生を無くす或いは
極力防止することができる。尚、段差部の傾斜は、例え
ば一定の角度やほぼ一定の角度が含まれる略所定角度と
する。A press-forming apparatus of the present invention is a press-forming apparatus for press-forming a blank material in which a thin plate and a thick plate are integrally formed via a step. The upper side surface and the lower side surface of the die are continuous through a stepped portion that is inclined, and the step of the blank material is lowered along the stepped portion of the die in the pressing process, or the stepped portion is moved downward from above. It is characterized by With the above structure, the stepped portion that is inclined at the time of press forming presses the stepped portion of the blank material upward, so that the occurrence of sink marks can be eliminated or prevented as much as possible. In addition, the inclination of the step portion is, for example, a substantially predetermined angle including a constant angle or a substantially constant angle.
【０００７】さらに、本発明のプレス成形装置は、プレ
ス工程後に於ける前記ブランク材の段差の位置が前記金
型の段差部上になることを特徴とする。前記構成によ
り、プレス成形時に傾斜する段差部がブランク材の段差
箇所を上方に押圧し、且つプレス成形後に傾斜する段差
部が前記段差箇所を上方に押圧する状態を維持し、ひけ
の発生を無くすことができる。尚、プレス工程後に於け
る前記ブランク材の段差の位置が前記金型の下側面にな
るようにしてもよい。また、押圧によって上方に突出す
る段差箇所の上部は平らな他方の金型で圧潰することも
可能であるが、プレス成形する他方の金型の前記段差部
に略対応する位置に若干の逃がし部を設け、前記押圧に
よって上方に突出する段差箇所の上部を前記逃がし部の
形状で吸収するようにすると好適である。Further, the press forming apparatus of the present invention is characterized in that the position of the step of the blank material after the pressing step is on the step of the mold. With the above-described configuration, the stepped portion that is inclined during press forming keeps a state in which the stepped portion of the blank material is pressed upward, and the stepped portion that is inclined after press forming presses the stepped portion upward, thereby eliminating the occurrence of sink marks. be able to. The position of the step of the blank material after the pressing step may be on the lower side surface of the mold. Further, the upper part of the step portion protruding upward by pressing can be crushed by the other flat die, but a slight relief portion is provided at a position substantially corresponding to the step portion of the other die to be press-molded. It is preferable that the relief portion is provided so that the upper portion of the step portion protruding upward by the pressing is absorbed by the shape of the relief portion.
【０００８】さらに、本発明のプレス成形装置は、前記
段差部を、前記ブランク材の薄板と厚板の板厚差をＡ、
前記金型の上側面と下側面間の距離をＢとした場合にＡ
≧Ｂを充足するように形成することを特徴とする。即
ち、段差部をＡ＝Ｂ若しくはＡ＞Ｂとするものである。
又、板厚差Ａと金型の上側面と下側面間の距離Ｂを略同
一としてもよい。尚、本発明のプレス成形装置の構成は
本発明のプレス成形装置の金型の構成に適宜採用するこ
とが可能である。Further, in the press forming apparatus of the present invention, the stepped portion is provided with a thickness difference A between the thin plate and the thick plate of the blank material,
If the distance between the upper and lower side surfaces of the mold is B, then A
It is characterized in that it is formed so as to satisfy ≧ B. That is, the step portion is A = B or A> B.
Further, the plate thickness difference A and the distance B between the upper side surface and the lower side surface of the mold may be substantially the same. The structure of the press molding apparatus of the present invention can be appropriately adopted as the structure of the mold of the press molding apparatus of the present invention.
【０００９】また、本発明のプレス成形装置の金型は、
薄板と厚板が段差を介して一体として構成されているブ
ランク材をプレス成形するプレス成形装置の金型であっ
て、プレス成形する一方の金型の上側面と下側面が傾斜
する段差部を介して連続し、該段差部を、該ブランク材
の薄板と厚板の板厚差をＡ、該金型の上側面と下側面間
の距離をＢとした場合にＡ≧Ｂを充足するように形成す
ると共に、他方の金型の該段差部に略対応する位置に逃
がし部を設けることを特徴とする。Further, the mold of the press molding apparatus of the present invention is
A mold of a press molding apparatus for press-molding a blank material in which a thin plate and a thick plate are integrally formed via a step, and a step part in which an upper side surface and a lower side surface of one mold for press molding is inclined So as to satisfy A ≧ B, where the step difference is A, the plate thickness difference between the thin plate and the thick plate of the blank material is A, and the distance between the upper side surface and the lower side surface of the mold is B. And a relief portion is provided at a position substantially corresponding to the stepped portion of the other die.
【００１０】[0010]
【発明の実施の形態】以下、本発明のプレス成形装置及
びプレス成形装置の金型について、具体的な実施形態に
基づき説明する。図１（ａ）〜（ｃ）は実施形態のプレ
ス成形装置によるプレス成形過程を説明する断面図であ
る。BEST MODE FOR CARRYING OUT THE INVENTION The press molding apparatus and the mold of the press molding apparatus of the present invention will be described below based on specific embodiments. 1A to 1C are cross-sectional views illustrating a press molding process by the press molding apparatus of the embodiment.
【００１１】本実施形態のプレス成形装置は、図１に示
すように、固定金型である雄型２０と可動金型である雌
型３０を備え、ブランク材１０を所定の位置に定置可能
であり、又、ブランク材１０は、板厚差がＡである薄板
１１と厚板１２が上面が平滑になるように固着部１３で
溶接され、薄板１１と厚板１２が段差１４を介して一体
として構成されているものであり、プレス成形装置の雄
型２０と雌型３０との間に平滑な面を上側にしてブラン
ク材１０を配置し、その状態で雌型３０を下降させ、雄
型２０と雌型３０でブランク材１０をプレスし、ブラン
ク材１０を所定形状に成形するものである。As shown in FIG. 1, the press molding apparatus of this embodiment includes a male mold 20 that is a fixed mold and a female mold 30 that is a movable mold, and the blank 10 can be placed at a predetermined position. In the blank material 10, the thin plate 11 and the thick plate 12 having a plate thickness difference A are welded at the fixing portion 13 so that the upper surfaces are smooth, and the thin plate 11 and the thick plate 12 are integrated via the step 14. The blank material 10 is placed between the male mold 20 and the female mold 30 of the press molding device with the smooth surface facing upward, and the female mold 30 is lowered in that state to move the male mold. The blank material 10 is pressed by 20 and the female die 30 to mold the blank material 10 into a predetermined shape.
【００１２】雄型２０は、図示例で平らな上側面２１と
平らな下側面２２が所定角度の傾斜面である段差部２３
を介して連続している形状であり、Ｂは雄型２０の上側
面２１と下側面２２間の距離である。本実施形態に於け
る雄型２０の上側面２１と下側面２２間の距離Ｂは、板
厚差Ａと同一になるように形成されている。前記段差部
２３の傾斜面の角度は適宜の所定角度とすることが可能
であるが、例えば図１（ａ）に示す水平な下側面２２と
段差部２３の傾斜面とで形成する傾斜角度θを０°＜θ
＜１５°とすると好適である。又、雌型３０は、雄型２
０の段差部２３に対応する位置に略山形の逃がし部３１
が設けられている。The male die 20 has a step portion 23 in which a flat upper side surface 21 and a flat lower side surface 22 are inclined surfaces at a predetermined angle in the illustrated example.
And B is a distance between the upper side surface 21 and the lower side surface 22 of the male die 20. The distance B between the upper side surface 21 and the lower side surface 22 of the male die 20 in the present embodiment is formed to be the same as the plate thickness difference A. The angle of the inclined surface of the step portion 23 can be set to an appropriate predetermined angle. For example, the inclination angle θ formed by the horizontal lower side surface 22 and the inclined surface of the step portion 23 shown in FIG. 0 ° <θ
<15 ° is preferable. Also, the female die 30 is the male die 2
An approximately mountain-shaped relief portion 31 is provided at a position corresponding to the stepped portion 23 of 0.
Is provided.
【００１３】尚、本発明では、雄型２０の上側面２１と
下側面２２は平面状に限定されず、その各々若しくは一
方を曲面状に形成してもよく、例えば曲面状の薄板１１
と曲面状の厚板１２が固着されたブランク材１０の同一
面で連続した曲面を雌型３０の側に、ブランク材１０の
段差１４を介した薄板１１の曲面と厚板１２の曲面を、
雄型３０の段差部２３を介して連続形状である曲面状の
上側面２１と曲面状の下側面２２の側に配置し、プレス
する構成としてもよい。In the present invention, the upper side surface 21 and the lower side surface 22 of the male die 20 are not limited to a flat shape, and either or one of them may be formed in a curved shape, for example, a curved thin plate 11
The curved surface of the thin plate 11 and the curved surface of the thick plate 12 through the step 14 of the blank material 10 is a continuous curved surface on the same surface of the blank material 10 to which the curved thick plate 12 is fixed.
The male mold 30 may be arranged on the curved upper side surface 21 and the curved lower side surface 22 through the stepped portion 23, and may be pressed.
【００１４】上記プレス成形装置により、例えばドロー
成形に於いてブランク材１０をプレス成形する際には、
図１（ａ）に示すように、先ず雄型２０上にブランク材
１０を配置する。前記配置では、上側面２１に於ける傾
斜面である段差部２３の上端近傍の位置に、ブランク材
１０の段差１４の下端が位置するように配置して、上側
面２１の上方に薄板１１を略配置すると共に、下側面２
２の上方に厚板１２を略配置する。換言すれば、プレス
前にはブランク材１０の厚板１２側に、雄型２０の段差
部２３を対応させて設定する。When the blank material 10 is press-molded by the above-mentioned press-molding apparatus, for example, in draw molding,
As shown in FIG. 1A, first, the blank material 10 is placed on the male die 20. In the above arrangement, the thin plate 11 is arranged above the upper side surface 21 by disposing the lower end of the step 14 of the blank material 10 at a position near the upper end of the step portion 23 which is an inclined surface on the upper side surface 21. Almost arranged and lower surface 2
A thick plate 12 is arranged substantially above 2. In other words, before pressing, the step portion 23 of the male die 20 is set correspondingly to the thick plate 12 side of the blank material 10.
【００１５】その後、雌型３０を下降してブランク材１
０をプレスしていき、ブランク材１０を所定形状にプレ
ス成形する。そのプレスの過程では、図１（ｂ）に示す
ように、ブランク材１０を雄型２０と雌型３０とで押圧
すると、その押圧によってブランク材１０は厚板１２の
側に移動し、ブランク材１０の段差１４の下端が雄型２
０の傾斜面である段差部２３上に入り込み、段差１４の
下端が段差部２３に沿って左斜め下方に下降していく。
前記下降と雄型２０の傾斜面である段差部２３による押
圧及び雌型３０の逃がし部３１近傍による押圧とによ
り、段差１４の位置に於ける薄板１１の端部及び厚板１
２の端部は上方に屈曲され、その上部は雌型３０の逃が
し部３１内へ突出していく。尚、逃がし部３１の形状、
大きさ等は板厚差の寸法Ａやブランク材１０の厚み等に
応じて適宜変更する。After that, the female die 30 is lowered and the blank 1
0 is pressed to form the blank 10 into a predetermined shape. In the pressing process, as shown in FIG. 1B, when the blank material 10 is pressed by the male die 20 and the female die 30, the blank material 10 is moved to the thick plate 12 side by the pressing, and the blank material 10 is pressed. The lower end of the step 14 of 10 is the male type 2
The lower end of the step 14 descends obliquely downward leftward along the step 23, as it enters the step 23 which is an inclined surface of 0.
By the lowering and the pressing by the step portion 23 which is the inclined surface of the male die 20 and the pressing by the vicinity of the escape portion 31 of the female die 30, the end portion of the thin plate 11 and the thick plate 1 at the position of the step 14 are formed.
The end of 2 is bent upward, and the upper part thereof projects into the escape portion 31 of the female die 30. In addition, the shape of the escape portion 31,
The size and the like are appropriately changed according to the dimension A of the plate thickness difference, the thickness of the blank material 10, and the like.
【００１６】そして、プレス後には、図１（ｃ）に示す
ように、プレスされたブランク材１０の段差１４の下端
は傾斜面である段差部２３上に位置し、段差１４の位置
に於ける薄板１１の端部及び厚板１２の端部は上方に屈
曲され、その上部は雌型３０の逃がし部３１の形状に略
倣って山形となり上方に突出する。その後、ドロー工程
で所定形状にプレス成形したブランク材１０に対し、例
えばリストライク工程で逃がし部３１内に突出した部分
を平滑にする等の処理を行い、所定形状の製品等とす
る。尚、この際に、プレス成形品の形状或いは断面形状
に周長差が出ないように、所定形状或いは断面形状に浅
くドロー成形した後に、深くリストライク成形すること
により、製品のしわを無くす或いは極力防止することが
できる。After pressing, as shown in FIG. 1 (c), the lower end of the step 14 of the pressed blank material 10 is located on the step 23 which is an inclined surface, and at the position of the step 14. The end of the thin plate 11 and the end of the thick plate 12 are bent upward, and the upper portion thereof has a mountain shape that substantially follows the shape of the escape portion 31 of the female die 30 and projects upward. After that, the blank material 10 press-molded into a predetermined shape in the drawing step is subjected to a treatment such as smoothing the portion protruding into the relief portion 31 in the restrike step to obtain a product having a predetermined shape. At this time, the wrinkles of the product can be eliminated by performing shallow draw-forming to a predetermined shape or cross-sectional shape and then deep-listening molding so that there is no difference in circumferential length in the shape or cross-sectional shape of the press-formed product. It can be prevented as much as possible.
【００１７】[0017]
【発明の効果】本発明のプレス成形装置及びその金型或
いはプレス成形方法を用いることにより、薄板と厚板が
一体として構成されているブランク材をプレス成形する
際に、金型の段差部の位置に於けるブランク材の薄板部
分にひけが発生することを無くす或いは極力防止するこ
とができる効果を奏する。従って、製品の品質を向上
し、又は後処理の必要を無くし製造工程を効率化するこ
とができる。EFFECTS OF THE INVENTION By using the press molding apparatus and the mold or the press molding method thereof of the present invention, when a blank material in which a thin plate and a thick plate are integrally formed is press-molded, a step portion of the mold is It is possible to eliminate or prevent the occurrence of sink marks in the thin plate portion of the blank material at the position. Therefore, the quality of the product can be improved, or the need for post-treatment can be eliminated to improve the efficiency of the manufacturing process.
【００１８】また、ブランク材にひけが発生することが
無くす等により、ブランク材のひけを無くすための後処
理を行う必要を無くすことが可能になるから、前記後処
理によってブランク材に波或いはシワが形成されること
を防止することができる。Further, by eliminating the occurrence of sink marks on the blank material, it is possible to eliminate the need for post-treatment for eliminating sink marks on the blank material. Can be prevented from being formed.
【図１】（ａ）〜（ｃ）実施形態のプレス成形装置によ
るプレス成形過程を説明する断面図。1A to 1C are cross-sectional views illustrating a press molding process by a press molding apparatus according to an embodiment.
【図２】プレス成形後の金型及びブランク材の断面図。FIG. 2 is a cross-sectional view of a mold and a blank material after press molding.
１０、４０ ブランク材 １１、４１ 薄板 １２、４２ 厚板 １３、４３ 固着部 １４、４４ 段差 ４５ ひけ ２０、５０ 雄型 ２１、５１ 上側面 ２２、５２ 下側面 ２３、５３ 段差部 ３０、６０ 雌型 ３１ 逃がし部 10, 40 Blank material 11,41 thin plate 12, 42 thick plate 13,43 Fixed part 14,44 steps 45 Hike 20, 50 male 21, 51 Upper side 22, 52 Lower surface 23, 53 step 30, 60 Female 31 relief section
Claims (4)
成されているブランク材をプレス成形するプレス成形装
置であって、プレス成形する一方の金型の上側面と下側
面が傾斜する段差部を介して連続し、プレス工程で該ブ
ランク材の段差を該金型の段差部に沿って下降すること
を特徴とするプレス成形装置。1. A press molding apparatus for press-molding a blank material in which a thin plate and a thick plate are integrally formed via a step, and a step in which an upper side surface and a lower side surface of one die of the press molding is inclined. A press forming apparatus, characterized in that the step of the blank is lowered along the step of the mold in a pressing step.
段差の位置が前記金型の段差部上になることを特徴とす
る請求項１記載のプレス成形装置。2. The press molding apparatus according to claim 1, wherein the position of the step of the blank material after the pressing step is on the step of the mold.
厚板の板厚差をＡ、前記金型の上側面と下側面間の距離
をＢとした場合にＡ≧Ｂを充足するように形成すること
を特徴とする請求項１又は２記載のプレス成形装置。3. The step portion satisfies A ≧ B when the difference in plate thickness between the thin plate and the thick plate of the blank material is A and the distance between the upper side surface and the lower side surface of the mold is B. The press molding apparatus according to claim 1 or 2, wherein the press molding apparatus is formed into a sheet.
成されているブランク材をプレス成形するプレス成形装
置の金型であって、プレス成形する一方の金型の上側面
と下側面が傾斜する段差部を介して連続し、該段差部
を、該ブランク材の薄板と厚板の板厚差をＡ、該金型の
上側面と下側面間の距離をＢとした場合にＡ≧Ｂを充足
するように形成すると共に、他方の金型の該段差部に略
対応する位置に逃がし部を設けることを特徴とするプレ
ス成形装置の金型。4. A mold of a press molding apparatus for press-molding a blank material, in which a thin plate and a thick plate are integrally formed via a step, wherein an upper side surface and a lower side surface of one mold to be press-molded are If the difference in thickness between the thin plate and the thick plate of the blank material is A and the distance between the upper side surface and the lower side surface of the mold is B, then A ≧ A mold for a press molding apparatus, characterized in that the mold is formed so as to satisfy B, and a relief portion is provided at a position substantially corresponding to the stepped portion of the other mold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002094142A JP4007837B2 (en) | 2002-03-29 | 2002-03-29 | Molding method for press-molded products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002094142A JP4007837B2 (en) | 2002-03-29 | 2002-03-29 | Molding method for press-molded products |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003290842A true JP2003290842A (en) | 2003-10-14 |
| JP4007837B2 JP4007837B2 (en) | 2007-11-14 |
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ID=29238270
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002094142A Expired - Fee Related JP4007837B2 (en) | 2002-03-29 | 2002-03-29 | Molding method for press-molded products |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010038354A1 (en) | 2009-07-23 | 2011-02-03 | Honda Giken Kogyo K.K. (Also Trading As Honda Motor Co., Ltd.) | Method and apparatus for forming a cut sheet |
| JP2013184208A (en) * | 2012-03-09 | 2013-09-19 | Honda Motor Co Ltd | Press forming apparatus |
-
2002
- 2002-03-29 JP JP2002094142A patent/JP4007837B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010038354A1 (en) | 2009-07-23 | 2011-02-03 | Honda Giken Kogyo K.K. (Also Trading As Honda Motor Co., Ltd.) | Method and apparatus for forming a cut sheet |
| JP2011025263A (en) * | 2009-07-23 | 2011-02-10 | Honda Motor Co Ltd | Method and apparatus for forming tailored blank plate |
| US8402804B2 (en) | 2009-07-23 | 2013-03-26 | Honda Motor Co., Ltd. | Method and apparatus of forming tailored blank plate |
| JP2013184208A (en) * | 2012-03-09 | 2013-09-19 | Honda Motor Co Ltd | Press forming apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4007837B2 (en) | 2007-11-14 |
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