WO2017038579A1 - 伸びフランジ成形部品の製造方法 - Google Patents

伸びフランジ成形部品の製造方法 Download PDF

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Publication number
WO2017038579A1
WO2017038579A1 PCT/JP2016/074657 JP2016074657W WO2017038579A1 WO 2017038579 A1 WO2017038579 A1 WO 2017038579A1 JP 2016074657 W JP2016074657 W JP 2016074657W WO 2017038579 A1 WO2017038579 A1 WO 2017038579A1
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WO
WIPO (PCT)
Prior art keywords
flange
peripheral edge
bent
outer peripheral
top plate
Prior art date
Application number
PCT/JP2016/074657
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English (en)
French (fr)
Japanese (ja)
Inventor
新宮　豊久
健太郎 佐藤
靖廣 岸上
雄司 山▲崎▼
Original Assignee
Ｊｆｅスチール株式会社
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 Ｊｆｅスチール株式会社 filed Critical Ｊｆｅスチール株式会社
Priority to MX2018002445A priority Critical patent/MX367318B/es
Priority to CN201680049697.9A priority patent/CN107921504B/zh
Priority to KR1020187005408A priority patent/KR102023541B1/ko
Priority to JP2017505584A priority patent/JP6156608B1/ja
Publication of WO2017038579A1 publication Critical patent/WO2017038579A1/ja

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    • 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
    • B21D19/00—Flanging or other edge treatment, e.g. of tubes
    • 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
    • B21D19/00—Flanging or other edge treatment, e.g. of tubes
    • B21D19/08—Flanging or other edge treatment, e.g. of tubes by single or successive action of pressing tools, e.g. vice jaws
    • 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
    • B21D22/26—Deep-drawing for making peculiarly, e.g. irregularly, shaped articles
    • 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

Definitions

  • the present invention has a concave outer peripheral edge that is curved so that a part of the outer peripheral edge is indented inward on the top plate, thereby manufacturing an elongated flange-molded part in which the flange is manufactured with stretch flange molding.
  • stretch flange molded parts for example, press-molded parts used as body frame parts of automobiles, and parts having an L-shaped part or a T-shaped part in plan view can be exemplified.
  • the present invention is a technique that is particularly suitable for production by press molding using a super high tensile material of 980 MPa or more as a raw material.
  • Parts having an L-shaped part or T-shaped part such as a front pillar reinforcement and a center pillar reinforcement are formed into a flat metal plate (blank material).
  • a flat metal plate blade material
  • Drawing is usually performed using a mold consisting of a punch, a die, and a blank holder.
  • the metal plate is made by reducing the distance between the punch and the die while holding the periphery of the metal plate with the die and the blank holder. This is a method of drawing the material. Bending is usually performed by using a die composed of a punch, a pad, and a die, and bending is performed by relatively moving the die while the metal plate is sandwiched between the punch and the pad.
  • the part where cracks are particularly likely to occur due to the above press molding is the stretch flange molded part of the curved part.
  • the material end surface is deformed so that the material flows in while being stretched in the peripheral direction.
  • Patent Document 1 there is a technique described in Patent Document 1.
  • a part having an L-shape when a part having an L-shape is press-molded, a vertical wall portion and a flange are formed while sliding a part of a metal material on a portion corresponding to a top plate portion in a die mold. The part is formed.
  • the present invention has been made paying attention to such a problem, and a stretch flange molded part manufacturing method capable of manufacturing a stretch flange molded part manufactured with stretch flange molding with a low molding load while suppressing stretch flange cracking. It is an object.
  • a method of manufacturing an elongated flange molded part includes a top plate portion having a concave outer peripheral edge curved so that a part of the outer peripheral edge is recessed inward, and the top plate
  • a stretch flange molded part manufacturing method for manufacturing a stretch flange molded part comprising: a vertical wall portion continuous to the concave outer peripheral edge portion of a portion; and a flange portion bent continuously toward the top plate portion side of the vertical wall portion
  • a ridge line extends along a position that becomes the outer peripheral edge portion of the flange portion outside the position that becomes the flange portion, and a bent shape portion that is bent in the plate thickness direction is formed.
  • the bent portion is formed so as to surround the outer peripheral edge portion of the flange portion where elongation flange cracking is likely to occur in the first step.
  • stretch flange cracking during bending in the second step can be suppressed.
  • the vertical wall portion is formed by bending forming without being processed by drawing, it can be manufactured with a low forming load.
  • the flange portion is continuous to the first concave outer peripheral edge portion of the top plate portion via the vertical wall, and is bent toward the top plate portion side with respect to the vertical wall portion, so that it extends during manufacture by press molding. With flange forming.
  • the base plate (blank material) before press forming which is the molding material
  • the base plate (blank material) before press forming which is the molding material
  • burrs and minute scratches remain on the material end face, and deformation is applied.
  • local stress concentration is likely to occur. Therefore, cracks called stretch flange cracks occur in the end face of the material during the forming, and in the case of an ultra-high tensile material (high-strength steel sheet having a strength level of 980 MPa or higher), the cracks propagate rapidly and large cracks are likely to occur.
  • As a countermeasure against stretch flange cracking there is a method of uniformly finishing the end face by machining or the like to prevent stress concentration.
  • the outer portion of the flange portion is trimmed to form the outer peripheral edge of the flange portion, and at the same time, the bent shape portion provided to suppress the above-mentioned stretch flange crack Has been removed.
  • a stretch flange molded part having a portion that becomes a stretch flange molded portion is manufactured using an ultra-high tensile material of 980 MPa or higher as a base plate (blank material) before press molding
  • the manufacturing method of the present invention can be applied even to a material made of a metal plate having a strength of 980 MPa or less.
  • part used as an elongate flange molding part A pillar (refer FIG. 6) and a center pillar (refer FIG. 7) are mentioned, for example.
  • the stretch flange molded portion 1 manufactured by the manufacturing method of the present embodiment includes a top plate portion 3 having a concave outer peripheral edge portion 3 a that is curved so that a part of the outer peripheral edge is recessed inward.
  • the vertical wall portion 5 formed along the concave outer peripheral edge portion 3a of the top plate portion 3 is bent to the top plate portion 3 side continuously to the vertical wall portion 5, and a part of the outer peripheral edge is recessed inwardly.
  • It has the flange part 7 which has the concave outer peripheral part 7a curved in this way.
  • the flange part 7 is a site
  • the shape of the outer periphery of the flange part 7 does not need to be a curved shape so that it may be dented, it is normally processed into the shape along the concave outer periphery 3a.
  • the concave outer peripheral edge 3a of the top plate portion 3 is also referred to as a first concave outer peripheral edge 3a
  • the concave outer peripheral edge 7a of the flange portion 7 is also referred to as a second concave outer peripheral edge 7a.
  • the contour shape of the first concave outer peripheral edge portion 3a and the contour shape of the second concave outer peripheral edge portion 7a are usually identical or similar.
  • the curved curvature shape of the contour shape of the first concave outer peripheral edge portion 3a and the curved curvature shape of the contour shape of the second concave outer peripheral edge portion 7a may be different.
  • the curved profile does not need to have a constant curvature, and it is preferable that there is no curvature steep portion where the curvature is steep along the extending direction.
  • the manufacturing method of the stretch flange molded part of the present embodiment includes three steps of a first step, a second step, and a third step, and the molding process is executed in this order.
  • the bent portion 8 is applied to the outer peripheral portion at the position to be the flange portion 7 with respect to the flat plate (blank material) before press molding. That is, a 1st process is a process of manufacturing the blank material with a bending shape part as shown in FIG.
  • the material portion outside the bent shape portion 8 is omitted, and the position that becomes the second concave outer peripheral edge portion 7 a is indicated by a one-dot chain line.
  • the material portion outside the bent shape portion 8 is omitted as appropriate for easy viewing.
  • a 2nd process is a process which uses the blank material with a bending shape part as an intermediate part.
  • the bent portion 8 is trimmed from the intermediate part. That is, a 3rd process is a process of shape
  • the bent shape portion 8 is formed at the outer peripheral position from the position to become the flange portion 7 with respect to the flat plate (blank material) before press molding.
  • the bent shape portion 8 is formed such that the ridge line 9 extends along the second concave outer peripheral edge portion 7a and is bent in the plate thickness direction.
  • the bent shape part 8 of this embodiment consists of the step-shaped step shape bent in the plate
  • the bent shape portion 8 may be formed by press molding using a die and a punch, or may be formed by another processing method.
  • the step height (projection height in the plate thickness direction) of the bent shape portion 8 to be molded is preferably 3 mm or more and 10 mm or less.
  • the bent shape portion 8 is formed so that the ridge line 9 extends along the second concave outer peripheral edge portion 7a in parallel with or substantially parallel to the second concave outer peripheral edge portion 7a or the first concave outer peripheral edge portion 3a.
  • the bent shape portion 8 may not have the ridgeline 9 extending in parallel or substantially parallel to the second concave outer peripheral edge portion 7a or the first concave outer peripheral edge portion 3a.
  • the bent portion 8 may be formed intermittently along the second concave outer peripheral edge portion 7a.
  • the bent shape part 8 does not need to be formed so that the ridgeline 9 may extend along the entire circumference of the second concave outer peripheral edge part 7a.
  • the curved shape portion has a large curvature of curvature, that is, a ridgeline 9 extends only along a portion where a flange flange crack is expected to occur by molding analysis and the vicinity thereof. 8 may be formed.
  • FIG. 3 shows an example in which the bent portion 8 is bent so as to protrude downward, the bent portion 8 may be bent in the thickness direction so as to protrude upward.
  • the top plate portion of the stretch flange molded part as shown in FIG. 8 You may press-work so that the uneven
  • the uneven shape formed at the position to be the top plate portion 3 may not be the same shape as the shape to be given to the top plate portion of the final product, but is a shape close to the shape to be given to the top plate portion 3 of the final product. It is preferable that Further, the uneven shape may be only a part of the shape to be imparted to the top plate portion 3 of the final product.
  • the concavo-convex shape imparted in the first step has an effect of positioning and preventing misalignment when the blank material with the bent shape portion is installed in the mold in the second step.
  • the second step is a step of bending the blank material with a bent shape portion formed with the bent shape portion 8 as shown in FIG.
  • the die 32 is relatively moved along the punch 30 while the top plate portion 3 of the blank material with a bent shape portion formed in the first step is sandwiched between the punch 30 and the pad 31.
  • the vertical wall portion 5 is bent and molded so that the flange portion 7 is bent toward the top plate portion 3 side.
  • FIG. 4 shows a state in which a part of the vertical wall portion 5 is formed in the second step so that the position of the first concave outer peripheral edge portion 3a can be seen.
  • the bent portion 8 is bent so as to protrude upward will be described.
  • the mold for the second process sandwiches a portion corresponding to the top plate portion 3 in the punch 30 constituting the lower die, the die 32 constituting the upper die, and the blank material with the bent shape portion. And a pad 31 to be pressed.
  • the punch 30 has a rising portion 30A for sandwiching the top plate portion and a punch extension portion 30B.
  • the punch extension part 30B may be a separate body from the rising part 30A.
  • the rising portion 30A for sandwiching the top plate portion serves as the first punch, and the punch extension portion 30B constitutes the second punch.
  • the punch extension 30B has a flange-facing surface 30a that is continuous with the lower end portion of the rising portion 30A and can be opposed to at least the flange 7 forming position of the blank material from below.
  • the upper surface of the rising portion 30 ⁇ / b> A is a narrow pressure surface that narrows the top plate portion 3 of the molding material in cooperation with the pad 31.
  • the side surface 30b of the rising portion 30A is formed with a curved surface having the same curvature as that of the first concave outer peripheral edge portion 3a, and has a shape for forming the vertical wall portion 5 in the stretch flange forming portion. That is, the height of the side surface of the rising portion 30 ⁇ / b> A is set to the same height as the vertical wall portion 5.
  • the pad 31 is provided so as to be detachable from the upper surface of the rising portion 30A of the punch 30.
  • a portion corresponding to the top plate portion 3 in the blank material with a bent shape portion is provided in cooperation with the upper surface of the rising portion 30A of the punch 30. It works and can be pinched. That is, the lower surface of the pad 31 has a shape along the first concave outer peripheral edge 3 a of the top plate 3, and at least a portion along the first concave outer peripheral edge 3 a side of the top plate 3 is punched. 30 can be sandwiched together. As shown in FIG.
  • the position of the pad 31 of the present embodiment on the first concave outer peripheral edge 3 a side is retracted from the side surface 30 b of the rising portion 30 ⁇ / b> A of the punch 30 as viewed from above. For this reason, as shown in FIG. 4, when the portion corresponding to the top plate portion 3 is sandwiched between the upper surface of the rising portion 30 ⁇ / b> A and the pad 31 in the punch 30, the first concave shape in the portion corresponding to the top plate portion 3. The outer peripheral edge 3a side is exposed upward.
  • the punch side surface of the die 32 is a curved surface that forms the vertical wall portion 5 in cooperation with the side surface 30b of the rising portion 30A.
  • an overhang portion 32a projecting outward (to the punch 30 side) is formed on the upper side surface.
  • the overhanging portion 32a abuts on the upper surface of the punch 30 through the material, so that the die 32 is further restricted from moving downward. That is, the restriction position is the position of the molding bottom dead center when the die 32 is lowered.
  • the height of the die side surface from the overhanging portion 32 a to the lower end position is set to the height of the vertical wall portion 5.
  • a concave relief portion 32d is provided.
  • the lower surface of the die 32 does not compress the bent shape portion 8, and preferably does not contact until the die 32 moves to the bottom dead center.
  • the width of the lower surface 32c of the step portion 32b is equal to or smaller than the width of the flange portion.
  • the height difference (gap) between the flange facing surface 30a of the punch 30 and the bottom surface of the relief portion 32d of the die 32 in the state where the die 32 is lowered to the position of the bottom dead center of molding is the bending formed in the blank material with a bent shape portion. It is set so as to be equal to or higher than the height of the shape portion 8.
  • the bent shape portion 8 is disposed in the gap (recessed portion) formed by the relief portion 32d of the die 32, so that the bent shape portion 8 is restrained and narrowed during the second step of bending. It will not be done.
  • the portion including the bent portion 8 is freely restrained and deformed during bending, thereby reducing the stress concentration on a specific portion of the flange portion and further preventing cracking. Can do.
  • the bent portion 8 is convex toward the flange facing surface 30a side of the punch 30, the above-described recess shape for the relief portion may be set on the flange facing surface 30a side.
  • FIG. 5A shows a state in which the top plate portion 3 of the blank material with a bent shape is narrowed by the punch 30 and the pad 31, and FIG. 5B relatively moves the die 32 to the press forming bottom dead center.
  • FIG. 5B relatively moves the die 32 to the press forming bottom dead center.
  • the state at the time of making it show is shown.
  • the top plate portion 3 of the blank material with a bent shape portion is placed on the upper surface of the punch 30 and sandwiched between the punch 30 and the pad 31.
  • the pad 31 is not disposed on the entire surface corresponding to the top plate portion 3 in the stretch flange molding portion, but slightly inward from the side surface having a curvature corresponding to the first concave outer peripheral edge portion 3a of the punch 30. Place it at a shifted position.
  • the die 32 is moved relative to the flange-facing surface 30a along the side surface of the punch 30 to the position shown in FIG. 5B, whereby the first concave outer peripheral edge portion 3a and the vertical wall portion 5 are moved. , And the flange portion 7 is bent. That is, by the relative movement of the die 32 in the second step, the first concave outer peripheral edge portion 3a of the blank material with a bent shape portion is first bent. Subsequently, the portion that becomes the vertical wall portion 5 is bent and formed in order from the upper side continuous with the first concave outer peripheral edge portion 3a toward the lower side, and the flange portion 7 side of the blank material is the flange of the punch extension portion 30B. A boundary portion between the lower end portion of the vertical wall portion 5 and the flange portion 7 is bent and formed in contact with the facing surface 30a. Thus, in this embodiment, bending will be added sequentially and continuously from the top plate part side.
  • part (outside the position used as a flange part) in which the bent shape part 8 in the blank material with a bent shape part is formed becomes stretch flange molding, and the tensile stress of a peripheral direction acts.
  • the portion is present in a shape in which the ridge line 9 of the bent shape portion 8 is continuous in the circumferential direction, so there is no crack starting point and cracks are unlikely to occur.
  • the ridge line 9 of the bent shape portion 8 has a continuous shape in the circumferential direction, a uniform tensile stress is applied to the portion without stress concentration. Cracks are unlikely to occur.
  • the bent shape portion 8 of the present embodiment extends along the second concave outer peripheral edge portion 7a in plan view, the tensile stress acting on the bent shape portion 8 can be made more uniform.
  • the bent shape portion 8 defined above in the first step at least in the vicinity of the curved portion of the flange portion to be stretch-formed, the portion that becomes the second concave outer peripheral edge portion 7a becomes the stretch flange at the second step. Even when subjected to deformation, the strain is easily dispersed due to the shape rigidity of the bent portion 8, and the strain can be prevented from concentrating on the portion that becomes the second concave outer peripheral edge 7a. Further, by forming the bent shape portion 8 defined above in the first step, when the second concave outer peripheral edge portion 7a is stretched during the second step and undergoes flange deformation, the bent shape portion 8 has a certain height.
  • the part used as the 2nd concave outer periphery part 7a can be planarized, and a line length difference can be earned. Therefore, a strong peripheral tensile stress is unlikely to act on the second concave outer peripheral edge portion 7a.
  • the uniformed stress acts also on the outer end surface of the bent shape portion 8, Even if burrs or minute flaws remain on the end face, the stress concentration is relaxed, and a cracking suppression effect can also be exhibited in this respect.
  • the portion including the bent portion 8 is not constrained by the mold and can be freely deformed (moved or escaped) three-dimensionally. It is possible to further relax the tensile stress acting in a concentrated manner.
  • the intermediate part is formed without cracking.
  • the case where the bent portion 8 protrudes upward has been described.
  • a concave shape that allows the bent portion to escape is formed on the punch extension portion 30B side of the punch 30. May be.
  • the outer part of the flange part 7 of the intermediate part is trimmed to form the second concave outer peripheral edge part 7a.
  • the trimmed portion includes a bent portion 8.
  • the bent shape portion 8 is formed in the first step, the blank material with the bent shape portion is bent into the intermediate component in the second step, and the intermediate component in the third step.
  • the outer portion of the flange portion 7 is trimmed, cracking can be suppressed even when a 980 MPa class or higher super high tensile material is used as the base plate before press molding, and the stretch flange including the stretch flange molded portion can be satisfactorily included. Molded parts can be manufactured.
  • the bent-shaped portion 8 in advance along the outer peripheral edge portion 7a, it is possible to suppress stretch flange cracking during bending forming in the second step. Furthermore, since the vertical wall portion is formed by bending without being processed by drawing, it can be manufactured with a low forming load. From the above, according to the present embodiment, even if a stretch flange molded part is manufactured from an ultra-high tensile material having a strength level of 980 MPa or higher with stretch flange molding, low molding while suppressing stretch flange cracking. It becomes possible to manufacture with a load.
  • a third step of trimming a portion outside the flange portion 7 is provided. If the base plate (blank material) before press forming is trimmed by punching or laser processing in advance, burrs and minute scratches remain on the material end face, so local stress concentration when deformation is applied Is likely to occur. Therefore, cracks called stretch flange cracks occur in the end face of the material during the forming, and in the case of an ultra-high tensile material (high-strength steel sheet having a strength level of 980 MPa or higher), the cracks propagate rapidly and large cracks are likely to occur. . On the other hand, by trimming the outer part of the flange portion 7 after the second step and molding the outer peripheral edge of the flange portion 7, the end surface of the flange portion 7 is further stretched and a flange crack is less likely to occur.
  • the escape part 32d which escapes the bending shape part 8 is provided in the metal mold
  • the step height of the bent portion 8 is 3 mm or more and 10 mm or less. By defining the height of the bent portion 8 within this range, even if an ultra-high tensile material having a strength level of 980 MPa or higher is used, it becomes possible to more reliably suppress stretch flange cracks.
  • Example 1 When manufacturing a part having the same shape as the A pillar shown in FIG. 7 using a 980 MPa grade cold-rolled steel plate (plate thickness 1.6 mm) as a blank material, the first step, the second step, The molded product of Example 1 of the present invention was manufactured by a three-stage manufacturing method through three steps. That is, in the processing step, the bent portion 8 was formed in the first step as described above. Next, in the second step, the first concave outer peripheral edge portion 3a, the vertical wall portion 5 and the flange portion 7 were successively bent and formed. Thereafter, as a third step, the outer portion of the flange portion 7 was trimmed to obtain a molded product of Example 1 of the present invention.
  • the height of the vertical wall part was 100 mm.
  • a vertical wall portion was formed by a single step of drawing, with the same shape as the A pillar shown in FIG. 6, and then the outer portion of the flange portion was trimmed to produce a molded product of Comparative Example 1. .
  • Comparative Example 1 no bent molded part was provided.
  • the stretch flange parts of the molded product of Invention Example 1 and the molded product of Comparative Example 1 were compared.
  • cracks did not occur in the flange portion of the curved portion in Example 1 of the present invention, whereas cracks occurred in the portion shown in FIG. 6 in Comparative Example 1.
  • the superiority of the inventive example 1 over the comparative example 1 could be clarified.
  • Example 2 When manufacturing a part having the same shape as the center pillar shown in FIG. 6 using a 1180 MPa class cold-rolled steel plate (plate thickness 1.6 mm) as a blank material, the first step, the second step, The molded product of Example 2 of the present invention was manufactured by a three-stage manufacturing method through three steps. That is, in the processing step, the bent portion 8 was formed in the first step as described above. Next, in the second step, the first concave outer peripheral edge portion 3a, the vertical wall portion 5 and the flange portion 7 were successively bent and formed. Thereafter, as a third step, the outer portion of the flange portion 7 was trimmed to obtain a molded product of Inventive Example 2.
  • the height of the vertical wall part was 100 mm.
  • a vertical wall part was formed by a single process of drawing, with the same shape as the center pillar shown in FIG. 7, and then the outer part of the flange part was trimmed to produce a molded product of Comparative Example 2.
  • Comparative Example 2 no bent molded part was provided.
  • the stretch flange parts of the molded product of Invention Example 2 and the molded product of Comparative Example 2 were compared. As a result of evaluation, cracks did not occur at all in the flange portion of the curved portion in Example 2 of the present invention, whereas cracks occurred in the portion shown in FIG. 7 in Comparative Example 2.
  • the superiority of the inventive example 2 over the comparative example 2 could be clarified.
PCT/JP2016/074657 2015-08-28 2016-08-24 伸びフランジ成形部品の製造方法 WO2017038579A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
MX2018002445A MX367318B (es) 2015-08-28 2016-08-24 Metodo para la fabricacion de un componente en forma de brida estirada.
CN201680049697.9A CN107921504B (zh) 2015-08-28 2016-08-24 拉伸凸缘成形零件的制造方法
KR1020187005408A KR102023541B1 (ko) 2015-08-28 2016-08-24 신장 플랜지 성형 부품의 제조 방법
JP2017505584A JP6156608B1 (ja) 2015-08-28 2016-08-24 伸びフランジ成形部品の製造方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2015169227 2015-08-28
JP2015-169227 2015-08-28

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WO2017038579A1 true WO2017038579A1 (ja) 2017-03-09

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KR (1) KR102023541B1 (es)
CN (1) CN107921504B (es)
MX (1) MX367318B (es)
WO (1) WO2017038579A1 (es)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020069534A (ja) * 2018-10-31 2020-05-07 Ｊｆｅスチール株式会社 プレス部品の製造方法及び下金型の設計方法
KR20210092295A (ko) * 2019-01-11 2021-07-23 제이에프이 스틸 가부시키가이샤 프레스 성형 방법, 판상 재료의 블랭크재, 중간 성형품, 프레스 성형품의 제조 방법 및 프레스 성형품
CN113329829A (zh) * 2019-01-25 2021-08-31 日本制铁株式会社 冲压成形方法和冲压装置
KR20210107805A (ko) * 2019-01-31 2021-09-01 제이에프이 스틸 가부시키가이샤 프레스 부품의 제조 방법 및 블랭크재의 제조 방법
EP3909697A4 (en) * 2019-01-11 2022-03-02 JFE Steel Corporation PRESSING PROCESS, BLANK OF SHEET MATERIAL, INTERMEDIATE, METHOD OF MAKING A PRESSING AND PRESSING
EP4129514A4 (en) * 2020-03-31 2023-09-27 JFE Steel Corporation METHOD FOR PRODUCING A PRESSED COMPONENT, METHOD FOR PRODUCING A BLANK MATERIAL AND STEEL SHEET

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002282952A (ja) * 2001-03-22 2002-10-02 Kobe Steel Ltd アルミニウム合金パネル成形品のプレス成形方法
JP2012245536A (ja) * 2011-05-26 2012-12-13 Nippon Steel Corp プレス部品の成形方法
JP2013169578A (ja) * 2012-02-22 2013-09-02 Topre Corp プレス部品の成形方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2965617T3 (es) * 2010-05-19 2024-04-16 Nippon Steel Corp Método de conformación por prensado de componentes con forma de L
RU2636426C2 (ru) * 2013-01-07 2017-11-23 Ниппон Стил Энд Сумитомо Метал Корпорейшн Прессованный компонент и способ и устройство для его изготовления
JP6052478B1 (ja) * 2015-06-16 2016-12-27 Ｊｆｅスチール株式会社 伸びフランジ成形部品の製造方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002282952A (ja) * 2001-03-22 2002-10-02 Kobe Steel Ltd アルミニウム合金パネル成形品のプレス成形方法
JP2012245536A (ja) * 2011-05-26 2012-12-13 Nippon Steel Corp プレス部品の成形方法
JP2013169578A (ja) * 2012-02-22 2013-09-02 Topre Corp プレス部品の成形方法

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020069534A (ja) * 2018-10-31 2020-05-07 Ｊｆｅスチール株式会社 プレス部品の製造方法及び下金型の設計方法
KR20210092295A (ko) * 2019-01-11 2021-07-23 제이에프이 스틸 가부시키가이샤 프레스 성형 방법, 판상 재료의 블랭크재, 중간 성형품, 프레스 성형품의 제조 방법 및 프레스 성형품
CN113286672A (zh) * 2019-01-11 2021-08-20 杰富意钢铁株式会社 冲压成形方法、板状材料的落料、中间成形品、冲压成形品的制造方法和冲压成形品
EP3909697A4 (en) * 2019-01-11 2022-03-02 JFE Steel Corporation PRESSING PROCESS, BLANK OF SHEET MATERIAL, INTERMEDIATE, METHOD OF MAKING A PRESSING AND PRESSING
KR102499437B1 (ko) * 2019-01-11 2023-02-13 제이에프이 스틸 가부시키가이샤 프레스 성형 방법, 판상 재료의 블랭크재, 중간 성형품, 프레스 성형품의 제조 방법 및 프레스 성형품
CN113329829A (zh) * 2019-01-25 2021-08-31 日本制铁株式会社 冲压成形方法和冲压装置
CN113329829B (zh) * 2019-01-25 2022-12-16 日本制铁株式会社 冲压成形方法和冲压装置
KR20210107805A (ko) * 2019-01-31 2021-09-01 제이에프이 스틸 가부시키가이샤 프레스 부품의 제조 방법 및 블랭크재의 제조 방법
EP3919198A4 (en) * 2019-01-31 2022-03-23 JFE Steel Corporation METHOD OF PRODUCTION OF A PRESSED COMPONENT AND METHOD OF PRODUCTION OF A BLANK
KR102479611B1 (ko) 2019-01-31 2022-12-20 제이에프이 스틸 가부시키가이샤 프레스 부품의 제조 방법 및 블랭크재의 제조 방법
US11931788B2 (en) 2019-01-31 2024-03-19 Jfe Steel Corporation Method for manufacturing pressed component, and method for manufacturing blank material
EP4129514A4 (en) * 2020-03-31 2023-09-27 JFE Steel Corporation METHOD FOR PRODUCING A PRESSED COMPONENT, METHOD FOR PRODUCING A BLANK MATERIAL AND STEEL SHEET

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JPWO2017038579A1 (ja) 2017-08-31
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