WO2021100276A1 - プレス成形金型 - Google Patents

プレス成形金型 Download PDF

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Publication number
WO2021100276A1
WO2021100276A1 PCT/JP2020/032025 JP2020032025W WO2021100276A1 WO 2021100276 A1 WO2021100276 A1 WO 2021100276A1 JP 2020032025 W JP2020032025 W JP 2020032025W WO 2021100276 A1 WO2021100276 A1 WO 2021100276A1
Authority
WO
WIPO (PCT)
Prior art keywords
punch
press
molding
die
forming
Prior art date
Application number
PCT/JP2020/032025
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
靖廣 岸上
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 EP20888886.7A priority Critical patent/EP4063037A4/en
Priority to CN202080078576.3A priority patent/CN114728323A/zh
Priority to US17/765,669 priority patent/US20220274151A1/en
Priority to KR1020227016497A priority patent/KR20220082896A/ko
Priority to MX2022005542A priority patent/MX2022005542A/es
Publication of WO2021100276A1 publication Critical patent/WO2021100276A1/ja

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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
    • B21D24/00—Special deep-drawing arrangements in, or in connection with, presses
    • B21D24/04—Blank holders; Mounting means therefor
    • 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
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/01—Selection of materials
    • 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
    • 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
    • B21D22/04—Stamping using rigid devices or tools for dimpling
    • 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
    • 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
    • B21D37/08—Dies with different parts for several steps in a process

Definitions

  • the present invention relates to a press forming die (tool of press forming), and in particular, a blank is formed on a punch bottom and a concave bottom having a shallow depth or a convex shape having a low height.
  • the present invention relates to a press molding die for press molding into a press forming product having a part.
  • the blank is a hot rolled steel sheet, a cold rolled steel sheet, or a surface treatment of a steel sheet (electro galvanizing, hot dip galvanizing). -Dip galvanizing, organic film treatment, etc.), surface treated steel sheet, stainless steel sheet, aluminum sheet, magnesium sheet, etc.
  • a metal sheet composed of various metals.
  • the punch bottom portion refers to a portion where the punch is pushed toward the die side and becomes the bottom in the press-molded product formed by the punch and the die.
  • terms such as “directly below”, “downward”, and “upper” represent the relative vertical direction of the punch and the die in the press forming direction.
  • the die is above the punch.
  • "directly below” and “downward” with respect to the punch mean the direction opposite to the die in the press forming direction
  • “upper” with respect to the punch means the direction toward the die in the press forming direction.
  • High-tensile steel sheet in the automobile body due to the growing need for improving fuel efficiency and collision safety by reducing the weight of the automobile.
  • the application of is expanding.
  • parts of an automobile body are manufactured by press forming using a high-strength steel plate, it is caused by a decrease in formability due to the low ductility of the high-strength steel plate and a high material strength. Deterioration of accuracy of dimension is an issue.
  • an increase in the forming load required for forming parts has also become a major problem, and high-strength steel plates are applied because the press line needs to be changed and parts need to be divided. It is an obstacle to the above.
  • Patent Document 1 when forming a metal plate with a die and a punch, the punch is stopped until the punch comes into contact with the metal plate and reaches the end of the stroke of the punch, and a predetermined time elapses.
  • Patent Document 2 in the press working of a blank material by a die and a punch, the blank material is sequentially formed for each predetermined region by moving the punch separately.
  • a method of reducing the forming load at the time is disclosed.
  • Patent Document 1 a servo press is required to stop punching during molding, which is subject to equipment restrictions. Further, in the method disclosed in Patent Document 2, the mold structure becomes complicated and expensive, and in a high-strength steel plate having low formability, defects such as fractures and wrinkles may occur during molding. there were.
  • the present invention has been made to solve the above-mentioned problems, and a concave concave portion or a convex convex portion in the press forming direction is a punch bottom portion without requiring a complicated mechanism or structure. It is an object of the present invention to provide a press molding die capable of reducing a molding load in a press molding process of a press molded product formed in.
  • the press-molded mold according to the present invention comprises a punch and a die, and press-molds a press-molded product having a punch bottom and a concave portion having a shallow depth or a convex portion having a low height at the bottom of the punch.
  • the punch has a punch bottom forming surface for forming the punch bottom and a concave forming surface provided on the punch bottom forming surface to form the concave portion.
  • the projected area in the press molding direction is 110% or more of the projected area of the concave shape forming portion or the convex shape forming portion, including the range directly below.
  • FIG. 1 is a diagram illustrating a configuration of a press molding die according to an embodiment of the present invention.
  • FIG. 2 is a diagram showing an example of a press-molded product having a concave portion formed in a concave shape in the press molding direction on the bottom of the punch, which is the object of molding in the present invention.
  • FIG. 3 is a diagram showing the structure of a conventional press molding die.
  • FIG. 4 is a schematic view showing deformation of the press molding die near the bottom dead center of molding when a conventional press molding die is used.
  • FIG. 5 is a schematic view showing deformation and flection of the press molding die near the bottom dead point of molding when the press molding die according to the embodiment of the present invention is used.
  • FIG. 1 is a diagram illustrating a configuration of a press molding die according to an embodiment of the present invention.
  • FIG. 2 is a diagram showing an example of a press-molded product having a concave portion formed in a concave shape in the press molding direction on the
  • FIG. 6 is a diagram illustrating a configuration of another aspect of the press molding die according to the embodiment of the present invention.
  • FIG. 7 is a diagram showing the results of press molding analysis of the amount of deformation in the vicinity of the bottom dead center of the press molding die according to the conventional example in the example.
  • FIG. 8 is a diagram showing the results of press molding analysis of the amount of deformation in the vicinity of the bottom dead center of the press molding die according to the invention in the examples.
  • FIG. 9 is a graph showing the relationship between the forming stroke and the forming load in the press forming process obtained by the press forming analysis in the examples ((a) forming start to forming bottom dead center, (b) forming). Enlarged view near bottom dead center).
  • FIG. 7 is a diagram showing the results of press molding analysis of the amount of deformation in the vicinity of the bottom dead center of the press molding die according to the conventional example in the example.
  • FIG. 8 is a diagram showing the results of press molding analysis of the amount of deformation in the vicinity of the
  • FIG. 10 is a graph showing the results of the conventional example and the invention example of the molding load at the bottom dead center of molding in the examples.
  • FIG. 11 is a graph showing the relationship between the ratio of the projected area A1 in the press forming direction of the low Young's modulus member installation region portion to the projected area A2 of the concave shape forming portion and the forming load in the embodiment.
  • the press-molded die 1 includes a punch 3, a die 5, and a blank holder 7, as shown as an example in FIG. 1, and as illustrated in FIG.
  • a press-molded product 11 having a punch bottom portion 13 and a concave-shaped portion 15 formed in a concave shape on the punch bottom portion 13 and having a shallow depth of the concave-shaped portion 15 is press-molded.
  • the shallow depth of the concave portion 15 means that it is at least smaller than the molding height of the press-molded product 11.
  • the depth of the concave portion 15 in the press-molding direction is 10 mm or less, the plate thickness is increased. It is assumed that the depth is close.
  • each configuration of the press molding die 1 according to the present embodiment will be described. In the following description, elements having the same function are designated by the same reference numerals, and the description is omitted.
  • the punch 3 includes a punch bottom forming surface portion 3a forming the punch bottom portion 13 of the press-molded product 11, a concave shape forming portion 3b forming a concave shape portion 15 on the punch bottom portion 13, and a punch bottom forming surface portion 3a inside the punch 3. It has a low young rate member installation area 3d provided below (opposite side to the die 5 in the press forming direction) and on which a low young rate member 3c having a lower young rate than the punch bottom forming surface 3a is installed. It becomes.
  • the low Young's modulus member 3c is a material having a lower Young's modulus than the casting or steel material generally used as a member constituting the punch 3 or the die 5, and is, for example, a rubber material (rubber material).
  • rubber material rubber material
  • examples include resins (resins) such as rubber material and urethane material, and metals such as aluminum and magnesium.
  • the low Young's modulus member installation region portion 3d includes the range directly below the concave shape forming portion 3b, and the projected area A1 in the press forming direction is 110% or more of the projected area A2 of the concave shape forming portion 3b.
  • the low Young's modulus member 3c is installed in the entire low Young's modulus member installation region 3d. Then, as a method of installing the low Young's modulus member 3c in the low Young's modulus member installation region 3d, the inside of the punch 3 is processed into the same shape as the low Young's modulus member 3c and fitted, or fastened with a bolt. (Tightening), fixing with an adhesive (adhesive), and the like.
  • the die 5 is arranged so as to face the punch 3 with the blank 9 interposed therebetween, moves relative to the punch 3 side, and cooperates with the punch 3 to form the press-molded product 11.
  • the punch of the press-molded product 11 It has a punch bottom molding surface portion 5a for molding the bottom portion 13 and a concave shape forming portion 5b for forming the concave shape portion 15 on the punch bottom portion 13.
  • the blank holder 7 is arranged on the punch 3 side facing the die 5 with the blank 9 sandwiched therein, and cooperates with the die 5 to sandwich the end portion of the blank 9 and move relative to the punch 3 side. ..
  • FIG. 3 shows the operation of the press-molded die 1 and its action and effect when the press-molded product 11 is press-molded using the press-molded die 1 according to the present embodiment configured as described above. This will be described in comparison with the case where the conventional press molding die 21 shown is used.
  • the press-molded product 11 is press-molded using the conventional press-molding die 21 including the punch 23, the die 5, and the blank holder 7 as shown in FIG. 3, first, between the punch 23 and the die 5.
  • a blank 9 is arranged in the blank 9, and both ends of the blank 9 are sandwiched between the die 5 and the blank holder 7.
  • the punch bottom portion 13 is formed by relatively moving the die 5 and the blank holder 7 toward the punch 23 side while the blank 9 is sandwiched between the die 5 and the blank holder 7.
  • the punch 23 and the die 5 are hard to be elastically deformed, the amount of deformation thereof is small, and in order to fit the blank 9 into the concave shape forming portion 23b of the punch 23 to form the concave shape portion 15, the bottom dead center of molding is formed. It is necessary to push the blank 9 toward the punch 23 by applying a large molding load to the die 5 in the vicinity so as to press-mold the plate thickness to make it thinner.
  • the surface of the die 5 is crushed by elastic deformation near the bottom dead center of molding as in the conventional press molding die 21 (the region hatched by the diagonal line in the die 5 in FIG. 5). ..
  • the low Young's modulus member installation region 3d is provided below the punch bottom molding surface portion 3a to include the area directly below the concave shape forming portion 3b, the punch bottom molding surface portion 3a near the molding bottom dead point has a low Young's modulus. It bends toward the 3d side of the modulus member installation region portion and induces deformation of the surface of the punch 3 (the hatched region in the punch 3 in FIG. 5).
  • the press-molded die 1 according to the present embodiment it is possible to suppress an increase in the molding load near the bottom dead center of molding and press-mold the press-molded product 11 in which the concave portion 15 is formed. it can.
  • the present invention effectively suppresses an increase in molding load near the bottom dead center of molding when press molding is performed using a high-strength steel plate of 590 MPa class or higher as the blank 9.
  • the press molding die 1 even when it is structurally difficult to make the inside hollow (for example, because the low Young's modulus member 3c is installed inside the punch 3). If the press-molding die 1 is small and the inside of the punch 3 is hollow, sufficient strength of the punch 3 cannot be secured, etc.), and by installing a low Young's modulus member 3c inside the punch 3, the strength is secured. It is possible to reduce the molding load by causing the punch 3 to bend in the molding process.
  • the present invention sets the projected area of the low Young's modulus member installation region 3d of the punch 3 in the press molding direction to 110% or more of the projected area of the concave shape forming portion 3b in the press molding process.
  • the thickness of the punch bottom molded surface portion 3a in the press molding direction is appropriately adjusted so as to enable the punch bottom molded surface portion 3a to be bent. You can set it.
  • the projected area of the concave shape forming portion 3b is an area projected from the bottom portion of the concave shape forming portion 3b of the punch bottom forming surface portion 3a.
  • the punch 3 has the low Young's modulus member 3c installed in the entire low Young's modulus member installation area 3d.
  • the present invention may be a press molding die 31 in which the low Young's modulus member 33c is installed in a part of the low Young's modulus member installation region 33d provided in the punch 33. ..
  • the low Young's modulus member 33c has a lower Young's modulus than the punch bottom forming surface portion 33a of the punch 33, the low Young's modulus member installation area 33d includes the range directly below the concave shape forming portion 33b, and the press forming direction. As long as the projected area A1 of the above is 110% or more of the projected area A2 of the concave shape forming portion 33b, the position and range in which the low Young's modulus member 33c is installed are not particularly limited.
  • the low height of the convex portion means that it is at least lower than the molding height of the press-molded product.
  • the height of the convex portion is 10 mm or less, and the plate thickness is increased.
  • the present invention can be suitably applied to press-molded products having similar heights.
  • the die 5 is arranged above the punch 3, and the direction in which the die 5 is lowered toward the punch 3 is the press molding direction.
  • the direction in which the punch 3 is raised toward the die 5 may be the press forming direction.
  • the press molding die according to the present invention may be one in which a die is arranged below the punch (not shown) and the punch is lowered to the die side, a die is raised to the punch side, or the like.
  • the positional relationship between the punch and the die and the press forming direction are not particularly limited.
  • the press molding die 1 shown in FIG. 1 is provided with a blank holder 7, and both ends of the blank 9 are sandwiched between the die 5 and the blank holder 7 and press molded by draw forming.
  • the product 11 was press-molded, the present invention is provided with a punch 3 and a die 5 without a blank holder, and a press-molded die for press-molding the press-molded product 11 by crash forming. It may be a mold.
  • the press molding die 1 according to the present invention shown in FIG. 1 was used to perform a press molding analysis in the process of press molding the press molded product 11 shown in FIG. 2, and the punch 3 was deformed in the press molding process. And the molding load was evaluated.
  • the press-molded product 11 to be molded has a cross-section hat shape (hat cross section shape) having a punch bottom 13 and a concave concave portion 15 in the punch bottom 13 in the press molding direction.
  • the dimensions of each part are as shown in FIG.
  • the punch 3 of the press forming die 1 has a punch bottom forming surface portion 3a, a concave shape forming portion 3b, and a low young rate member having a lower young rate than the punch bottom forming surface portion 3a below the punch bottom forming surface portion. It has a low Young rate member installation area 3d on which 3c is installed.
  • the material of the punch 3 was FC250 (gray cast iron), and its Young's modulus was 115 GPa.
  • the Young's modulus of the low Young's modulus member 3c was 0.1 GPa, which was lower than the Young's modulus of the punch bottom molded surface portion 3a of the punch 3.
  • the low Young's modulus member installation region portion 3d includes the range directly below the concave shape forming portion 3b, and the projected area A1 in the press forming direction is 110% of the projected area A2 of the concave shape forming portion 3b.
  • FIG. 7 and 8 show the results of conventional examples and invention examples of the amount of deformation of the punches 3, 23 and the die 5 in the press molding direction near the bottom dead center of molding.
  • deformation in the press molding direction is observed near the edges of the concave shape forming portion 23b of the punch 23 and the concave shape forming portion 5b of the die 5, and the maximum value of the deformation amount is about 0.02 mm. there were.
  • deformation in the press molding direction is observed in a wide range below the concave shape forming portion 3b of the punch 3 and above the concave shape forming portion 5b of the die 5, and the amount of deformation is large.
  • the maximum value was about 0.05 mm, which was a large increase compared to the conventional example.
  • FIG. 9 shows the relationship between the forming stroke and the forming load in the press forming process. From FIG. 9, in both the conventional example and the invention example, the molding load gradually increased at the start of molding (molding stroke 0 mm), and rapidly increased near the bottom dead center of molding (molding stroke of about 21 to 23 mm). Then, as shown in FIGS. 9A and 9B, the molding loads of the conventional example and the invention example from the start of molding to the vicinity of the bottom dead center of molding (molding stroke 22.7 mm) were almost the same. However, as shown in FIG. 9B, it can be seen that in the vicinity of the bottom dead center of molding, the molding load of the invention example is lower than that of the conventional example.
  • FIG. 10 shows a graph comparing the molding loads of the conventional example and the invention example at the bottom dead center of molding (molding stroke 23 mm). From FIG. 10, in the invention example, the molding load was reduced by about 2.0 tonf as compared with the conventional example.
  • the ratio of the projected area A1 of the low Young's modulus member installation region 3d and the projected area A2 of the concave shape forming portion 3b which is the range of the present invention, is 110% or more, and the molding load is significantly reduced. ..
  • the ratio of the projected areas A1 and A2 shown in FIG. 11 is equivalent to less than 100%, and the molding load is sufficient.
  • the molding load is sufficient.
  • a press-molded product in which a concave concave portion in the press molding direction is formed on the punch bottom is targeted for molding, but the convex convex portion in the press molding direction is the punch bottom.
  • the press molding die 1 when the press-molded product 11 in which the concave concave portion 15 or the convex convex portion is formed on the punch bottom portion 13 in the press molding direction is press-molded. It has been demonstrated that the forming load near the bottom dead point of forming can be reduced by bending the punch bottom forming surface portion 3a of the punch 3 toward the low Young rate member installation region portion 3d below the punch bottom forming surface portion 3a. It was.
  • a molding load in a press molding process of a press-molded product in which a concave concave portion or a convex convex portion is formed on the bottom of the punch in the press molding direction without requiring a complicated mechanism or structure. It is possible to provide a press molding die capable of reducing the number of molds.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)
PCT/JP2020/032025 2019-11-20 2020-08-25 プレス成形金型 WO2021100276A1 (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP20888886.7A EP4063037A4 (en) 2019-11-20 2020-08-25 PRESS FORMING MOLD
CN202080078576.3A CN114728323A (zh) 2019-11-20 2020-08-25 冲压成形模具
US17/765,669 US20220274151A1 (en) 2019-11-20 2020-08-25 Tool of press forming
KR1020227016497A KR20220082896A (ko) 2019-11-20 2020-08-25 프레스 성형 금형
MX2022005542A MX2022005542A (es) 2019-11-20 2020-08-25 Herramienta de conformado por prensa.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2019-209314 2019-11-20
JP2019209314A JP7207276B2 (ja) 2019-11-20 2019-11-20 プレス成形金型

Publications (1)

Publication Number Publication Date
WO2021100276A1 true WO2021100276A1 (ja) 2021-05-27

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ID=75963687

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2020/032025 WO2021100276A1 (ja) 2019-11-20 2020-08-25 プレス成形金型

Country Status (7)

Country Link
US (1) US20220274151A1 (ko)
EP (1) EP4063037A4 (ko)
JP (1) JP7207276B2 (ko)
KR (1) KR20220082896A (ko)
CN (1) CN114728323A (ko)
MX (1) MX2022005542A (ko)
WO (1) WO2021100276A1 (ko)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5524753A (en) * 1978-08-10 1980-02-22 Honda Eng Kk Drawing die
JPS56142818U (ko) * 1980-03-21 1981-10-28
JPS5770722U (ko) * 1980-10-20 1982-04-28
JPS63207426A (ja) * 1987-02-20 1988-08-26 Honda Motor Co Ltd 樹脂製パンチ
JP2010207907A (ja) 2009-03-12 2010-09-24 Nissan Motor Co Ltd プレス方法と装置
JP2011245525A (ja) 2010-05-27 2011-12-08 Honda Motor Co Ltd 金属板のプレス成形方法

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SU1599144A1 (ru) * 1988-07-25 1990-10-15 Предприятие П/Я А-3327 Устройство дл штамповки
JPH0716729B2 (ja) * 1990-03-19 1995-03-01 工業技術院長 弾性変形型を用いた型成形法
DE4122323A1 (de) * 1991-07-05 1993-01-14 Erbsloeh Julius & August Elastisches werkzeug zum verformen
CN202343747U (zh) * 2011-11-18 2012-07-25 青岛海尔模具有限公司 拉延模具
US9770749B2 (en) * 2014-08-08 2017-09-26 GM Global Technology Operations LLC Hybrid stamping system
CN104492939A (zh) * 2014-10-16 2015-04-08 上海众大汽车配件有限公司 一种汽车固定支架总成拉延模具
EP3015183B1 (de) * 2014-11-03 2019-09-04 Peter Amborn Umformpresse zum Umformen eines flächenförmigen Rohlings aus Metall mit zwei aufeinander zu verfahrbaren Gestellteilen
CN104525673B (zh) * 2014-11-19 2018-05-18 宁波市普力升工贸有限公司 一种304不锈钢拉伸工件的温间拉伸工艺
CN205414117U (zh) * 2015-10-23 2016-08-03 聂国顺 一种冲压模具的拉深模
DE102017003955A1 (de) * 2017-04-22 2017-10-26 Daimler Ag Formwerkzeug zur Verformung eines ersten Hohlkörpers zur Einstellung einer Steckverbindung des ersten Hohlkörpers mit einem zweiten Hohlkörper
DE102019213531B4 (de) * 2019-09-05 2021-06-24 Volkswagen Aktiengesellschaft Werkzeugteil für ein Blechumformwerkzeug mit additiv erzeugtem Wirkflächenbereich und Verfahren zur Herstellung

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5524753A (en) * 1978-08-10 1980-02-22 Honda Eng Kk Drawing die
JPS56142818U (ko) * 1980-03-21 1981-10-28
JPS5770722U (ko) * 1980-10-20 1982-04-28
JPS63207426A (ja) * 1987-02-20 1988-08-26 Honda Motor Co Ltd 樹脂製パンチ
JP2010207907A (ja) 2009-03-12 2010-09-24 Nissan Motor Co Ltd プレス方法と装置
JP2011245525A (ja) 2010-05-27 2011-12-08 Honda Motor Co Ltd 金属板のプレス成形方法

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Publication number Publication date
EP4063037A4 (en) 2023-01-11
EP4063037A1 (en) 2022-09-28
US20220274151A1 (en) 2022-09-01
KR20220082896A (ko) 2022-06-17
JP7207276B2 (ja) 2023-01-18
JP2021079407A (ja) 2021-05-27
MX2022005542A (es) 2022-06-08
CN114728323A (zh) 2022-07-08

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