JP5847212B2 - Hot press machine - Google Patents

Hot press machine Download PDF

Info

Publication number
JP5847212B2
JP5847212B2 JP2014016719A JP2014016719A JP5847212B2 JP 5847212 B2 JP5847212 B2 JP 5847212B2 JP 2014016719 A JP2014016719 A JP 2014016719A JP 2014016719 A JP2014016719 A JP 2014016719A JP 5847212 B2 JP5847212 B2 JP 5847212B2
Authority
JP
Japan
Prior art keywords
steel plate
mold
upper mold
lower mold
restricting portion
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.)
Active
Application number
JP2014016719A
Other languages
Japanese (ja)
Other versions
JP2015142928A (en
Inventor
忠士 岩沼
忠士 岩沼
耕治 林
耕治 林
Original Assignee
東亜工業株式会社
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 東亜工業株式会社 filed Critical 東亜工業株式会社
Priority to JP2014016719A priority Critical patent/JP5847212B2/en
Priority to US14/596,015 priority patent/US20150217354A1/en
Publication of JP2015142928A publication Critical patent/JP2015142928A/en
Application granted granted Critical
Publication of JP5847212B2 publication Critical patent/JP5847212B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • B21D22/24—Deep-drawing involving two drawing operations having effects in opposite directions with respect to the blank
    • 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
    • B21D22/208—Deep-drawing by heating the blank or deep-drawing associated with heat treatment
    • 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
    • B21D53/00—Making other particular articles
    • B21D53/88—Making other particular articles other parts for vehicles, e.g. cowlings, mudguards

Landscapes

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

Description

本発明は、鋼板の周縁部に折り曲げ部を形成するためのプレス装置及び熱間プレス方法に関する。 The present invention relates to a pressing device and a hot pressing method for forming a bent portion in a peripheral edge portion of a steel plate.

車両用部品においては、厚さを薄くなおかつ高強度を持つ部材を用いることにより、安全性と経済性の両立を図っている。このような目的のため、高温に加熱した鋼板を低温のプレス金型で冷却して焼入れを行う、いわゆる熱間プレスが知られている。この工法は、鋼板をオーステナイト化温度以上に加熱し、プレス装置で成形と同時に急速冷却して焼入れを行うものである。     In parts for vehicles, both safety and economy are achieved by using a member having a thin thickness and high strength. For this purpose, a so-called hot press is known in which a steel plate heated to a high temperature is cooled by a low-temperature press die and quenched. In this method, the steel sheet is heated to the austenitizing temperature or higher, and rapidly cooled at the same time as forming with a press machine to perform quenching.

ある種の車両用部品は、鋼板の周縁部に断面Ｌ字状の折り曲げ部（段差部）を有している。こうした折り曲げ部を熱間プレスで形成する場合、側面に折り曲げ部形成用の段差を有する下金型と、下金型に水平方向に隣接して配置されたパッド部と、パッド部と垂直方向に対向して配置された上金型と、を備えたプレス装置が用いられる。   A certain type of vehicle component has a bent portion (stepped portion) having an L-shaped cross section at the periphery of the steel plate. When such a bent portion is formed by hot pressing, a lower mold having a step for forming the bent portion on the side surface, a pad portion disposed adjacent to the lower die in the horizontal direction, and a direction perpendicular to the pad portion. A press device provided with an upper die arranged to face each other is used.

このプレス装置において、上金型を下動させると、被プレス材である鋼板は上金型とパッド部との間に挟まれ、下金型の折り曲げ部形成用の段差を利用して鋼板の周縁部に折り曲げ部が形成される。   In this pressing apparatus, when the upper die is moved downward, the steel plate as the material to be pressed is sandwiched between the upper die and the pad portion, and the step of forming the bent portion of the lower die is utilized to make the steel plate A bent portion is formed at the peripheral edge.

特開２０１１−１５２５４７号公報JP 2011-152547 A

しかしながら、上金型が下動して鋼板が下金型の段差に引き込まれる時に、鋼板の周端部にしわ（皺）が発生し、しわが大きくなると、しわ部分の鋼板が部分的に重なり合うといった不具合が発生する場合がある。しわは、最終的にはプレス加工で潰すことができるが、その部分の強度が落ちるという問題がある。
本発明者の検討によれば、図６に示すように、鋼板１００の折り曲げ部の段差１０１が大きく、鋼板１００の周縁部が湾曲している場合に、湾曲部１０２でしわ１０３が発生し、鋼板１００の重なり合いは顕著になること、また、こうした不具合は、冷間プレスでも起こり得るが、鋼板１００が加熱されて軟化した状態でプレス加工を行う熱間プレスでは顕著に起こることも分かっている。 However, when the upper mold moves down and the steel sheet is drawn into the step of the lower mold, wrinkles (wrinkles) occur at the peripheral edge of the steel sheet, and when the wrinkles become large, the wrinkled steel sheets partially overlap. Such a problem may occur. The wrinkles can be finally crushed by press working, but there is a problem that the strength of the portion is lowered.
According to the inventor's study, as shown in FIG. 6, when the step 101 of the bent portion of the steel plate 100 is large and the peripheral portion of the steel plate 100 is curved, wrinkles 103 are generated in the curved portion 102, It is known that the overlap of the steel plates 100 becomes remarkable, and such a problem can occur even in the cold press, but it also occurs remarkably in the hot press in which the steel plate 100 is pressed while being heated and softened. .

上記課題に鑑み、本発明の熱間プレス装置は、側面に折り曲げ部形成用の段差を有する下金型と、スプリングにより上下動可能に支持され、前記下金型に水平方向に隣接して配置されたパッド部と、前記パッド部と垂直方向に対向して配置された上金型と、前記上金型が下動して鋼板を前記上金型と前記パッド部との間に挟んで前記鋼板の周縁部に折り曲げ部を形成する時に、前記上金型と共に下動し、前記下金型から水平方向に突出した該鋼板の周縁部の動きを規制することにより、前記鋼板の周縁部のしわの形成を抑制する規制部と、を備え、前記規制部は、該規制部が下動する時に前記下金型と接触しないように、前記下金型から水平方向に離間して配置され、かつ前記規制部は、前記上金型より遅れて前記鋼板に接触するように、前記規制部の下端面が前記上金型の下端面より垂直方向に高くなっていることを特徴とする。 In view of the above problems, the hot press apparatus of the present invention is supported by a lower mold having a step for forming a bent portion on a side surface and supported by a spring so as to be vertically movable, and is disposed adjacent to the lower mold in the horizontal direction. A pad portion formed thereon, an upper die disposed to face the pad portion in a vertical direction, and the upper die is moved downward to sandwich the steel plate between the upper die and the pad portion. When the bent portion is formed in the peripheral portion of the steel plate, it moves down with the upper mold and restricts the movement of the peripheral portion of the steel plate protruding in the horizontal direction from the lower mold, thereby A restricting portion that suppresses the formation of wrinkles, and the restricting portion is disposed in a horizontal direction away from the lower mold so as not to contact the lower mold when the restricting portion moves down, In addition, the restricting portion is in front of the upper mold so as to come into contact with the steel plate. Wherein the lower end surface of the restricting portion is higher in the vertical direction from the lower end surface of the upper mold.

本発明によれば、プレス加工により、鋼板の周縁部に折り曲げ部を形成する際に、周縁部におけるしわの発生を抑制して、プレス部品の強度を高めることができる。
特に、鋼板の折り曲げ部の段差が大きく、鋼板の周縁部が湾曲している場合にその効果は大きい。また、本発明は、冷間プレスにも適用することができるが、熱間プレスに適用するとその効果が大きい。 According to the present invention, when the bent portion is formed in the peripheral portion of the steel plate by press working, the generation of wrinkles in the peripheral portion can be suppressed, and the strength of the pressed part can be increased.
In particular, the effect is great when the step of the bent portion of the steel plate is large and the peripheral edge of the steel plate is curved. The present invention can also be applied to a cold press, but the effect is great when applied to a hot press.

本発明の実施形態におけるプレス装置の断面図である。It is sectional drawing of the press apparatus in embodiment of this invention. 本発明の実施形態におけるプレス装置の断面図である。It is sectional drawing of the press apparatus in embodiment of this invention. 本発明の実施形態におけるプレス装置の断面図である。It is sectional drawing of the press apparatus in embodiment of this invention. 本発明の実施形態におけるプレス装置の断面図である。It is sectional drawing of the press apparatus in embodiment of this invention. 本発明の実施形態におけるプレス装置の部分平面図である。It is a partial top view of the press apparatus in embodiment of this invention. プレスされた鋼板の斜視図である。It is a perspective view of the pressed steel plate.

本発明の実施形態を図面に基づいて説明する。図５は、プレス装置１０の部分平面図、図１乃至図４は、図５のＸ−Ｘ線における断面図である。 Embodiments of the present invention will be described with reference to the drawings. FIG. 5 is a partial plan view of the press device 10, and FIGS. 1 to 4 are cross-sectional views taken along the line XX of FIG. 5 .

図示のように、下金型１は、基台２上に固定され、側面に折り曲げ部形成用の段差３を有している。パッド部４は、下金型１の段差３側に水平方向に隣接して配置されている。パッド部４は、基台２に配置されたスプリング５（例えば、ガススプリング）により上下動可能に支持されている。   As shown in the figure, the lower mold 1 is fixed on a base 2 and has a step 3 for forming a bent portion on a side surface. The pad portion 4 is disposed adjacent to the step 3 side of the lower mold 1 in the horizontal direction. The pad portion 4 is supported by a spring 5 (for example, a gas spring) disposed on the base 2 so as to be movable up and down.

上金型６は、パッド部４と垂直方向に対向して配置される。そして、規制部７は、上金型６に隣接して配置される。上金型６及び規制部７は、被プレス材である鋼板１００のプレス加工を行うために、駆動装置（不図示）により上下に駆動されるようになっている。上金型６及び規制部７は、上金型として一体に形成されていてもよい。   The upper mold 6 is disposed to face the pad portion 4 in the vertical direction. The restricting portion 7 is disposed adjacent to the upper mold 6. The upper die 6 and the restricting portion 7 are driven up and down by a driving device (not shown) in order to press the steel plate 100 that is a pressed material. The upper mold 6 and the restricting portion 7 may be integrally formed as an upper mold.

この場合、規制部７は、上金型６が下動して、鋼板１００を上金型６とパッド部４との間に挟んで、鋼板１００の周縁部に折り曲げ部を形成する時に、上金型６と共に下動し、下金型１から水平方向に突出した鋼板１００の周縁部の動きを規制することにより、鋼板１００の周縁部のしわの形成を抑制する。特に、図６に示すように、鋼板１００の折り曲げ部の段差１０１が１２０ｍｍ〜１５０ｍｍと大きく、鋼板１００の周縁部が湾曲している場合にその効果は大きい。   In this case, when the upper mold 6 moves downward and the steel plate 100 is sandwiched between the upper mold 6 and the pad portion 4 and the bent portion is formed on the peripheral edge of the steel plate 100, By controlling the movement of the peripheral portion of the steel plate 100 that moves down together with the die 6 and protrudes from the lower die 1 in the horizontal direction, the formation of wrinkles at the peripheral portion of the steel plate 100 is suppressed. In particular, as shown in FIG. 6, the effect is great when the step 101 of the bent portion of the steel plate 100 is as large as 120 mm to 150 mm and the peripheral portion of the steel plate 100 is curved.

以下、プレス装置１０による熱間プレス方法について説明する。   Hereinafter, the hot press method by the press apparatus 10 is demonstrated.

先ず、鋼板１００加熱炉にてオーステナイト化温度以上に加熱する。次に、図１に示すように、上金型６及び規制部７を上死点まで上動させた状態で、加熱された鋼板１００を加熱炉から搬送し、下金型１及びパッド部４上に載置する。この場合、鋼板１００は、パッド部４上から下金型１の段差３を跨ぎ、下金型１の端上から水平方向に突出させる。   First, it heats more than the austenitizing temperature with the steel plate 100 heating furnace. Next, as shown in FIG. 1, the heated steel plate 100 is transported from the heating furnace in a state where the upper die 6 and the regulating portion 7 are moved up to the top dead center, and the lower die 1 and the pad portion 4. Place on top. In this case, the steel plate 100 straddles the step 3 of the lower mold 1 from above the pad portion 4 and protrudes from the upper end of the lower mold 1 in the horizontal direction.

次に、図２に示すように、上金型６及び規制部７を下動させていく。図２の状態では、鋼板１００は上金型６とパッド部４の間に挟まれ、上金型６の下端面がパッド部４上に載置された鋼板１００の上面に接触しているが、規制部７の下端面は鋼板１００の上面にまだ接触していないことが好ましい。 Next, as shown in FIG. 2, the upper die 6 and the restricting portion 7 are moved downward. In the state of FIG. 2, the steel plate 100 is sandwiched between the upper die 6 and the pad portion 4 , and the lower end surface of the upper die 6 is in contact with the upper surface of the steel plate 100 placed on the pad portion 4. The lower end surface of the restricting portion 7 is preferably not in contact with the upper surface of the steel plate 100 yet.

すなわち、図１の状態では、鋼板１００の上面から上金型６の下端面の垂直方向の高さはｈ１であり、鋼板１００の上面から規制部６の下端面の垂直方向の高さは、ｈ１より大きいｈ２になっている。（ｈ２＞ｈ１）図２の状態では、鋼板１００の上面から規制部６の下端面の垂直方向の高さはｈ＝ｈ２−ｈ１になっている。   That is, in the state of FIG. 1, the vertical height of the lower end surface of the upper mold 6 from the upper surface of the steel plate 100 is h1, and the vertical height of the lower end surface of the restricting portion 6 from the upper surface of the steel plate 100 is h2 is larger than h1. (H2> h1) In the state of FIG. 2, the height in the vertical direction from the upper surface of the steel plate 100 to the lower end surface of the restricting portion 6 is h = h2-h1.

そして、図３に示すように、上金型６及び規制部７をさらに下動させる。すると、上金型６は、スプリング５の反発力に抗して、鋼板１００が載置されたパッド部４を押し下げていく。鋼板１００は、上金型６の押圧力とスプリング５の反発力によって保持されている。これにより、鋼板１００は、下金型１の上面を摺動しながら下金型１の段差３に引き込まれ、折り曲げ部が形成されていくことに加え、鋼板１００が焼き入れされる。 And as shown in FIG. 3, the upper metal mold | die 6 and the control part 7 are moved further down. Then, the upper mold 6 pushes down the pad portion 4 on which the steel plate 100 is placed against the repulsive force of the spring 5. The steel plate 100 is held by the pressing force of the upper mold 6 and the repulsive force of the spring 5. As a result, the steel plate 100 is drawn into the step 3 of the lower mold 1 while sliding on the upper surface of the lower mold 1 to form a bent portion, and the steel plate 100 is quenched.

この折り曲げ部の形成途中で規制部７が鋼板１００の上面に接触し、鋼板１００の周縁部の動きを規制することにより、鋼板１００の周縁部のしわの形成、鋼板１００の重なりを抑制している。規制部７が設けられていないと、鋼板１００の周縁部が持ち上がることから、鋼板１００の周縁部のしわが発生してしまう。   During the formation of the bent portion, the restricting portion 7 comes into contact with the upper surface of the steel plate 100 and restricts the movement of the peripheral portion of the steel plate 100, thereby suppressing the formation of wrinkles at the peripheral portion of the steel plate 100 and the overlapping of the steel plates 100. Yes. If the restricting portion 7 is not provided, the peripheral edge of the steel plate 100 is lifted, so that wrinkles of the peripheral edge of the steel plate 100 are generated.

この場合、規制部７が鋼板１００に接触するのを遅らせることで、鋼板１００の周縁部が局所的に急冷され、鋼板１００の引き込まれによる応力で鋼板１００の割れが生じるのを防止している。 In this case, by delaying the contact of the restricting portion 7 with the steel plate 100, the peripheral portion of the steel plate 100 is locally quenched, thereby preventing the steel plate 100 from cracking due to the stress caused by the drawing of the steel plate 100. .

次に、図４に示すように、上金型６及び規制部７をさらに下動させる。すると、鋼板１００は下金型１の段差３にさらに深く引き込まれ、折り曲げ部が大きくなっていくと共に、規制部７は鋼板１００の周縁部の端を押し下げていく。この場合、規制部７を下金型１に接触せずに下方に逃がすために、規制部７は、下金型１から水平方向に離間して配置されている。規制部７と下金型１の水平方向の離間距離ｄは、鋼板１００の厚さｔより大きいこと（ｄ＞ｔ）が好ましい。 Next, as shown in FIG. 4, the upper mold 6 and the restricting portion 7 are further moved downward. Then, the steel plate 100 is drawn deeper into the step 3 of the lower mold 1 and the bent portion becomes larger, and the restricting portion 7 pushes down the edge of the peripheral edge of the steel plate 100. In this case, in order to allow the restricting part 7 to escape downward without coming into contact with the lower mold 1, the restricting part 7 is arranged to be separated from the lower mold 1 in the horizontal direction. The horizontal distance d between the restricting portion 7 and the lower mold 1 is preferably larger than the thickness t of the steel plate 100 (d> t).

本実施形態のプレス装置１０は、しわが形成されやすい傾向にある熱間プレスに適用すると効果が大きいが、鋼板１００の加熱を行わない冷間プレスにも適用することができる。   The press device 10 of the present embodiment is highly effective when applied to a hot press that tends to form wrinkles, but can also be applied to a cold press that does not heat the steel plate 100.

１ 下金型
２ 基台
３ 段差
４ パッド部
５ スプリング
６ 上金型
７ 規制部
１０ プレス装置
１００ 鋼板 DESCRIPTION OF SYMBOLS 1 Lower die 2 Base 3 Level | step difference 4 Pad part 5 Spring 6 Upper die 7 Control part 10 Press apparatus 100 Steel plate

Claims (2)

側面に折り曲げ部形成用の段差を有する下金型と、
スプリングにより上下動可能に支持され、前記下金型に水平方向に隣接して配置されたパッド部と、
前記パッド部と垂直方向に対向して配置された上金型と、
前記上金型が下動して鋼板を前記上金型と前記パッド部との間に挟んで前記鋼板の
周縁部に折り曲げ部を形成する時に、前記上金型と共に下動し、前記下金型から水平方向に突出した該鋼板の周縁部の動きを規制することにより、前記鋼板の周縁部のしわの形成を抑制する規制部と、を備え、
前記規制部は、該規制部が下動する時に前記下金型と接触しないように、前記下金
型から水平方向に離間して配置され、かつ前記規制部は、前記上金型より遅れて前記鋼板に接触するように、前記規制部の下端面が前記上金型の下端面より垂直方向に高くなっていることを特徴とする熱間プレス装置。 A lower mold having a step for forming a bent portion on a side surface;
A pad portion that is supported by a spring so as to be movable up and down, and is disposed adjacent to the lower mold in the horizontal direction;
An upper mold disposed perpendicularly to the pad portion;
When the upper mold is moved downward and the steel plate is sandwiched between the upper mold and the pad portion to form a bent portion at the peripheral edge of the steel plate, the upper mold is moved downward together with the lower mold. A regulation part that suppresses the formation of wrinkles in the peripheral part of the steel sheet by regulating the movement of the peripheral part of the steel sheet protruding in the horizontal direction from the mold , and
The restricting portion is configured to prevent the lower mold from coming into contact with the lower mold when the restricting portion moves down.
The lower end surface of the restricting portion is arranged in a vertical direction with respect to the lower end surface of the upper mold so that the lower end surface of the restricting portion contacts the steel plate with a delay from the upper die. A hot press machine characterized by being raised . 前記規制部と前記下金型の水平方向の離間距離は、前記鋼板の厚さより大きいこと
を特徴とする請求項１に記載の熱間プレス装置。 Horizontal distance of the lower tool and the regulating portion, the hot pressing apparatus according to claim 1, wherein the greater than the thickness of the steel sheet.
JP2014016719A 2014-01-31 2014-01-31 Hot press machine Active JP5847212B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2014016719A JP5847212B2 (en) 2014-01-31 2014-01-31 Hot press machine
US14/596,015 US20150217354A1 (en) 2014-01-31 2015-01-13 Press machine and pressing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2014016719A JP5847212B2 (en) 2014-01-31 2014-01-31 Hot press machine

Publications (2)

Publication Number Publication Date
JP2015142928A JP2015142928A (en) 2015-08-06
JP5847212B2 true JP5847212B2 (en) 2016-01-20

Family

ID=53754057

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2014016719A Active JP5847212B2 (en) 2014-01-31 2014-01-31 Hot press machine

Country Status (2)

Country Link
US (1) US20150217354A1 (en)
JP (1) JP5847212B2 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6543791B2 (en) * 2015-06-04 2019-07-17 株式会社Ｓｕｂａｒｕ Method of manufacturing resin molded body and press molding apparatus
JP6299692B2 (en) 2015-07-17 2018-03-28 株式会社デンソー Communications system
RU2698002C1 (en) * 2015-12-08 2019-08-21 Ниппон Стил Корпорейшн Method of making pressed article, press and pressing line
JP6662113B2 (en) * 2016-03-07 2020-03-11 日本製鉄株式会社 Press mold for forming parts with curved parts
JP6448587B2 (en) * 2016-08-10 2019-01-09 東亜工業株式会社 Hot press apparatus and hot press method
JP6721544B2 (en) * 2017-06-28 2020-07-15 株式会社神戸製鋼所 Method for manufacturing press-formed products
CN112475215A (en) * 2020-10-27 2021-03-12 青岛征和工业股份有限公司 Bending method of transition chain plate

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3197996A (en) * 1962-12-07 1965-08-03 Budd Co Redrawing dies for deep drawing to varying depths
JPS60158924A (en) * 1984-01-13 1985-08-20 Horie Kinzoku Kogyo Kk Press forming device
JPH0444263Y2 (en) * 1987-08-26 1992-10-19
JPH0342126A (en) * 1989-07-07 1991-02-22 Nissan Motor Co Ltd Formation of flange of panel part
JP4522378B2 (en) * 2005-04-20 2010-08-11 ジヤトコ株式会社 Press molding method and apparatus
JP2007125591A (en) * 2005-11-04 2007-05-24 Amada Co Ltd Folding method by punch press and punch press
SE531499C2 (en) * 2007-11-15 2009-04-28 Gestamp Hardtech Ab B-pillar for vehicles
JP2009190075A (en) * 2008-02-15 2009-08-27 Toyota Auto Body Co Ltd Press forming method
JP5890710B2 (en) * 2012-03-15 2016-03-22 株式会社神戸製鋼所 Hot press-formed product and method for producing the same
CA2882244C (en) * 2012-09-12 2017-06-06 Nippon Steel & Sumitomo Metal Corporation Method for producing curved part, and skeleton structure member of body shell of automobile

Also Published As

Publication number Publication date
JP2015142928A (en) 2015-08-06
US20150217354A1 (en) 2015-08-06

Similar Documents

Publication Publication Date Title
JP5847212B2 (en) Hot press machine
US20160158821A1 (en) Press forming method and method of manufacturing press-formed part
JP5863886B2 (en) Cold press forming method
JP6619645B2 (en) Hot press apparatus and hot press molding method
JP5515774B2 (en) Hot press molding method and hot press molding apparatus
KR102043343B1 (en) Panel shaped article and its manufacturing method
WO2012011224A1 (en) Method for forming steel plate by hot press
JP6619636B2 (en) Hot press equipment
RU2710401C1 (en) Hot forming method and hot forming system
JP2005343720A (en) Method and apparatus for manufacturing curved glass plate
WO2014050955A1 (en) Method for warm working stainless steel foil and mold for warm working
JP2007260761A (en) Hot press forming device
JP2015020175A (en) Press molding method and press molding device
JP2009190075A (en) Press forming method
JP2008000795A (en) Press forming method for magnesium-based alloy
JP5942606B2 (en) Warm press molding method and molding die having groove shape on the mold surface used therefor
JP6448587B2 (en) Hot press apparatus and hot press method
JP6330747B2 (en) Press molding die and press molding method
JP2016185551A (en) Press working device
US10226805B2 (en) Cam type press
JP2014079801A (en) Hot forging device
JP2012166235A (en) Press molding method and press molding device
US20140312024A1 (en) Method for producing steel sheet for press molding, and method and device for producing press-molded component
CN107584020A (en) Compressible separator and the segregation method for shaping
JP2000288643A (en) Method for press-forming embossed aluminum alloy sheet

Legal Events

Date Code Title Description
A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20150601

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20150703

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20151117

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20151124

R150 Certificate of patent or registration of utility model

Ref document number: 5847212

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

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

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