WO2013061480A1 - ホットプレス成形方法、及びホットプレス成形による成形品、並びに、ホットプレス用金型 - Google Patents

ホットプレス成形方法、及びホットプレス成形による成形品、並びに、ホットプレス用金型 Download PDF

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Publication number
WO2013061480A1
WO2013061480A1 PCT/JP2011/080102 JP2011080102W WO2013061480A1 WO 2013061480 A1 WO2013061480 A1 WO 2013061480A1 JP 2011080102 W JP2011080102 W JP 2011080102W WO 2013061480 A1 WO2013061480 A1 WO 2013061480A1
Authority
WO
WIPO (PCT)
Prior art keywords
mold
press molding
hot press
longitudinal direction
hot
Prior art date
Application number
PCT/JP2011/080102
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
哲司 江川
孝宜 鈴木
英俊 木村
池澤　秀明
加藤　謙治
正樹 古橋
Original Assignee
トヨタ自動車株式会社
アイシン高丘株式会社
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 トヨタ自動車株式会社, アイシン高丘株式会社 filed Critical トヨタ自動車株式会社
Priority to US14/353,624 priority Critical patent/US20140302341A1/en
Priority to DE112011105771.7T priority patent/DE112011105771T5/de
Priority to CN201180074342.2A priority patent/CN103889610A/zh
Publication of WO2013061480A1 publication Critical patent/WO2013061480A1/ja

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/02—Die forging; Trimming by making use of special dies ; Punching during forging
    • 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
    • B21D22/02—Stamping using rigid devices or tools
    • B21D22/022—Stamping using rigid devices or tools by heating the blank or stamping 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
    • 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
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/16—Heating or cooling
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12389—All metal or with adjacent metals having variation in thickness

Definitions

  • the present invention relates to hot press molding technology.
  • Patent Document 1 hot press molding in which a material heated to a quenching temperature is cooled while being press molded in a mold is widely used.
  • a metal material such as a steel material to be subjected to hot press molding expands when heated and contracts when cooled.
  • defects such as the molded product biting into the mold and an error in the dimension of the molded product shape may occur. For this reason, there is a need for a technique for avoiding defects caused by thermal shrinkage of materials when cooling in a hot press apparatus.
  • the hot press molding method of the present invention is a hot press molding method in which a heated material is press molded and cooled in a state where the material is held in a mold, and when the material is press molded, A shape change including a bent portion with respect to the longitudinal direction is formed at both ends in the longitudinal direction, and resistance against thermal contraction force in the longitudinal direction of the material during cooling is applied.
  • the shape change molded into the material at the time of the press molding is a plurality of minute protrusions provided on the surfaces of both ends in the longitudinal direction of the material.
  • the shape change formed into the material at the time of the press molding is a flange molded at both ends in the longitudinal direction of the material.
  • the hot press molded product of the present invention is obtained by any one of the above hot press molding methods.
  • One embodiment of a hot press mold according to the present invention includes an upper mold and a lower mold, and press-molds the material by sandwiching a material heated between the upper mold and the lower mold.
  • a mold for hot pressing that cools the material by being held in the lower mold, and a protrusion that protrudes toward the upper mold at a portion corresponding to the longitudinal end of the material, or
  • a plurality of recesses recessed from the upper mold toward the lower mold are provided, and the upper mold is provided with a plurality of recesses or protrusions corresponding to the recesses or the recesses provided in the lower mold and provided in the lower mold.
  • the protrusions or recesses to be formed and the recesses or protrusions provided in the upper mold form a plurality of minute protrusions on the surface of the longitudinal end portion of the material when the upper mold and the lower mold are pressed.
  • hot press mold of the present invention comprises an upper mold and a lower mold, and press-molds the material by sandwiching the heated material between the upper mold and the lower mold, A mold for hot pressing that cools the material by holding the upper mold and the lower mold at a longitudinal end of the material from the upper mold to the lower mold during the press molding. Or a flange that is bent from the lower mold toward the upper mold.
  • the present invention it is possible to suppress the thermal shrinkage of the material at the time of cooling in hot press molding, and to avoid defects associated therewith.
  • the hot press apparatus includes a hot press die 1.
  • the hot press mold 1 includes an upper mold 10 and a lower mold 20, and press-molds the material 2 between the upper mold 10 and the lower mold 20.
  • the upper mold 10 is supported by a moving device and is movable in the vertical direction.
  • the lower mold 20 is fixed so as not to move.
  • the material 2 is a quenchable metal material such as steel.
  • the material 2 is put into the hot press mold 1 in a state of being heated to the quenching temperature or more by energization heating or the like.
  • the material 2 is molded into a predetermined product shape (see FIG. 2) by press molding of the hot press mold 1 and is cooled and quenched by being held in the mold for a predetermined time (hot press molding). )
  • the material 2 is molded from a rectangular shape having one direction as a longitudinal direction into a molded product 3 having a hat cross section continuous along the longitudinal direction by hot press molding.
  • the material 2 is bent along the short direction by the hot press die 1 to form a molded product 3 having a hat cross section.
  • Examples of the molded article 3 using the hot press mold 1 of the present embodiment include a rocker outer and the like in addition to the pillar outer as shown in FIG.
  • protrusions 30, 30... are formed on the top plate surface at both longitudinal ends of the molded product 3.
  • the protrusion 30 is formed by bending a part of the material 2. That is, the protrusion 30 is a shape change including a bent portion inclined with respect to the longitudinal direction of the material 2.
  • a plurality of the protrusions 30 are formed as minute protrusions protruding in a hemispherical shape from the plane of the material 2 upward (or downward).
  • the protrusions 30, 30... Are formed on the top plate surface of the molded product 3, and are provided in a dispersed state with predetermined intervals in the longitudinal direction and the short direction.
  • the size, shape, and number of the protrusions 30, 30, etc. for example, so as not to hinder the mounting work and assembly work in the subsequent process, that is, not to impair the function of the molded product 3 as a product. Is set.
  • the minute protrusions 30 are hemispherical, semi-elliptical spherical, cubic, rectangular parallelepiped, or frustum-like shapes that are formed to a size that does not impair the function of the molded product 3 as a product. It is a protrusion which has a three-dimensional shape and protrudes from the plane portion (particularly, the plane extending in the longitudinal direction) of the molded product 3 to the front surface side or the back surface side. Further, the number of the protrusions 30 is set to a number that can provide a sufficient resistance against the heat shrinkage force in the longitudinal direction of the material 2 in consideration of the shape and size.
  • the protrusion length from the surface of the protrusion 30 is preferably set to be approximately the same as or smaller than the plate thickness of the material 2, and when the plate thickness of the material 2 is 1.4 mm, it is formed in a hemispherical shape.
  • the diameter of the protrusion 30 is preferably 3 mm or less.
  • the upper mold 10 is formed with recesses 11, 11... That are recessed upward, and the lower mold 20 is formed with protrusions 21, 21, protruding upward. ⁇ ⁇ Is formed. These recesses 11, 11... And projections 21, 21... Are provided for molding the projections 30. Has a shape.
  • each protrusion 30 is formed by sandwiching a part of the material 2 at both ends in the longitudinal direction between the recesses 11 and the protrusions 21. In this way, the material 2 is sandwiched between the upper mold 10 and the lower mold 20 to form the protrusions 30, 30..., And then the material 2 is cooled by holding the material 2 in the mold for a predetermined time. A molded product 3 of the press is obtained.
  • the hot press mold 1 that is, before the material 2 is hot press molded as the molded product 3 by cooling in the mold, .. are provided by sandwiching the material 2 between the concave portions 11, 11... And the convex portions 21, 21.
  • the shrinkage in the longitudinal direction is generally larger than the shrinkage in the short direction while shrinking from both ends in the longitudinal direction toward the center. Is.
  • protrusions 30, 30 At both ends in the longitudinal direction and applying a shape change that inclines with respect to the planar direction of the material 2, resistance against contraction force is given to the contraction start point. can do.
  • the protrusions 30, 30... are provided as minute protrusions, and thus do not affect the product strength, the deformation mode, and the like. That is, it does not significantly increase the cross-sectional moment with respect to the product shape, and does not become a starting point of bending. As described above, the protrusions 30... Do not greatly restrict the product shape, and the design of the molded product 3 including the protrusions 30.
  • the protrusions 30, 30,... are closer to the end in the longitudinal direction as long as the functionality of the molded product 3 is not impaired.
  • the part which does not impair the functionality of the molded product 3 here is a part which does not affect the product strength and deformation mode of the molded product 3.
  • the protrusions 30, 30 In the product shape of the molded product 3, when the top plate side wall or the side wall surface has a hole, a notch or the like, the protrusions 30, 30.
  • the hole 3 or notch as described above is provided in the molded product 3, it is often processed simultaneously with hot press molding, and a processing blade such as a trim punch is provided in the mold.
  • a processing blade such as a trim punch is provided in the mold.
  • a processing blade such as a trim punch
  • the protrusions 30, 30 are described as projecting from the lower mold 20 toward the upper mold 10 (upward), but the projections 30, 30. It may be protruding downward), and the protruding direction is not limited.
  • the protruding direction of each protrusion 30 can be selected according to the functionality of the molded product 3. That is, the upper direction and the lower direction may be mixed in the protruding direction of the protrusion 30.
  • flanges 40 and 40 at both ends in the longitudinal direction of the molded product 3 instead of providing the protrusions 30 and 30.
  • a bending portion with respect to the longitudinal direction (planar direction) of the material 2 is formed at the longitudinal end portion of the material 2 during press molding. It provides resistance to the shrinkage force.
  • the flanges 40 and 40 are formed by bending both longitudinal ends of the material 2 downward (or upward). Each flange 40 is provided at both ends of the molded product 3 as inclined surfaces having an angle larger than 45 ° with respect to the planar direction of the material 2 and having an angle that can be molded by press molding.
  • the flange 40 is preferably molded as an inclined surface having an angle of 60 ° to 80 °. As shown in FIG. 4, the bending direction of the flanges 40 and 40 may be from the upper mold 10 to the lower mold 20, or in the opposite direction from the lower mold 20 to the upper mold 10.
  • the longitudinal direction both ends in which the flanges 40 and 40 are formed can be trimmed in a subsequent process and used as a final product, or can be used as a part of a product shape.
  • a shape in which the end face in the longitudinal direction is open is also applicable.
  • a shape in which a substantially hat cross-section formed with a wall surface as an inclined surface is continuous in the longitudinal direction (FIG. b)) is applicable.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
PCT/JP2011/080102 2011-10-28 2011-12-26 ホットプレス成形方法、及びホットプレス成形による成形品、並びに、ホットプレス用金型 WO2013061480A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US14/353,624 US20140302341A1 (en) 2011-10-28 2011-12-26 Hot press molding method, article molded by hot press molding, and mold for hot pressing
DE112011105771.7T DE112011105771T5 (de) 2011-10-28 2011-12-26 Warmformpressverfahren, durch Warmformpressen hergestellter Gegenstand und Form zum Warmformpressen
CN201180074342.2A CN103889610A (zh) 2011-10-28 2011-12-26 热压成形方法、通过热压成形所形成的成形品以及热压用模具

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2011-237498 2011-10-28
JP2011237498A JP2013094793A (ja) 2011-10-28 2011-10-28 ホットプレス成形方法、及びホットプレス成形による成形品、並びに、ホットプレス用金型

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WO2013061480A1 true WO2013061480A1 (ja) 2013-05-02

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PCT/JP2011/080102 WO2013061480A1 (ja) 2011-10-28 2011-12-26 ホットプレス成形方法、及びホットプレス成形による成形品、並びに、ホットプレス用金型

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Country Link
US (1) US20140302341A1 (zh)
JP (1) JP2013094793A (zh)
CN (1) CN103889610A (zh)
DE (1) DE112011105771T5 (zh)
WO (1) WO2013061480A1 (zh)

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Publication number Priority date Publication date Assignee Title
DE102013108044B3 (de) * 2013-07-26 2014-11-20 Voestalpine Metal Forming Gmbh Kühlkörper mit Abstandhalter
KR20170108477A (ko) * 2016-03-18 2017-09-27 현대자동차주식회사 코이닝을 이용한 초고장력강판 트리밍방법
CN106938534A (zh) * 2017-04-05 2017-07-11 华南理工大学 一种宏观表面微拱形透镜阵列的快速热压成型装置及方法
CN107616577B (zh) * 2017-09-05 2022-12-20 巨一集团有限公司 一片式前脸的鞋靴制作工艺及其使用的压烫装置
JP7214973B2 (ja) * 2018-03-30 2023-01-31 マツダ株式会社 熱間プレス加工方法及び加工装置
JP7127331B2 (ja) * 2018-03-30 2022-08-30 マツダ株式会社 熱間プレス加工方法および加工装置
JP7144338B2 (ja) * 2019-02-05 2022-09-29 フタバ産業株式会社 プレス加工方法
CN112917537A (zh) * 2021-02-22 2021-06-08 合肥汇通控股股份有限公司 地毯成型切边模具

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010149184A (ja) * 2008-11-21 2010-07-08 Sumitomo Metal Ind Ltd 熱間プレス成形品、その製造装置および製造方法
JP2010264879A (ja) * 2009-05-14 2010-11-25 Aisin Seiki Co Ltd バンパリインホース

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3389562B2 (ja) * 2000-07-28 2003-03-24 アイシン高丘株式会社 車輌用衝突補強材の製造方法
JP4982723B2 (ja) * 2007-05-16 2012-07-25 ユニプレス株式会社 ダイクエンチプレス装置
JP5151784B2 (ja) * 2008-08-05 2013-02-27 新日鐵住金株式会社 センターピラーアウターパネルの製造方法およびセンターピラーアウターパネル用ブランク
CN201279550Y (zh) * 2008-10-06 2009-07-29 广州普什精密模具有限责任公司 一种生产轿车通道内板的反拉深模具
CN101623823A (zh) * 2009-06-22 2010-01-13 胡平 节能型高强度钢板温热成形成套装备自动化生产线
JP2011031273A (ja) * 2009-07-31 2011-02-17 Kobe Steel Ltd アルミニウム合金板ブランクおよび自動車パネルの成形方法
CN201552242U (zh) * 2009-12-23 2010-08-18 张家港金鸿顺机械工业有限公司 汽车压板冷冲压成型模具

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010149184A (ja) * 2008-11-21 2010-07-08 Sumitomo Metal Ind Ltd 熱間プレス成形品、その製造装置および製造方法
JP2010264879A (ja) * 2009-05-14 2010-11-25 Aisin Seiki Co Ltd バンパリインホース

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Publication number Publication date
CN103889610A (zh) 2014-06-25
JP2013094793A (ja) 2013-05-20
DE112011105771T5 (de) 2014-07-17
US20140302341A1 (en) 2014-10-09

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