US20260001117A1 - Forming system, forming device, and forming method - Google Patents

Forming system, forming device, and forming method

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Publication number
US20260001117A1
US20260001117A1 US19/317,725 US202519317725A US2026001117A1 US 20260001117 A1 US20260001117 A1 US 20260001117A1 US 202519317725 A US202519317725 A US 202519317725A US 2026001117 A1 US2026001117 A1 US 2026001117A1
Authority
US
United States
Prior art keywords
forming
die
metal pipe
forming device
pipe material
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.)
Pending
Application number
US19/317,725
Other languages
English (en)
Inventor
Ryohei Ikeda
Kimihiro Nogiwa
Masashi Kawakami
Tomoyoshi MAENO
Yuta Sugiyama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Heavy Industries Ltd
Original Assignee
Sumitomo Heavy Industries Ltd
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 Sumitomo Heavy Industries Ltd filed Critical Sumitomo Heavy Industries Ltd
Publication of US20260001117A1 publication Critical patent/US20260001117A1/en
Pending legal-status Critical Current

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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
    • 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
    • B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
    • B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
    • B21D26/033—Deforming tubular bodies
    • B21D26/035—Deforming tubular bodies including an additional treatment performed by fluid pressure, e.g. perforating
    • 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
    • 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
    • B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
    • B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
    • B21D26/033—Deforming tubular bodies
    • 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
    • B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
    • B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
    • B21D26/033—Deforming tubular bodies
    • B21D26/041—Means for controlling fluid parameters, e.g. pressure or temperature
    • 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
    • B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
    • B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
    • B21D26/053—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure characterised by the material of the blanks
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/62—Quenching devices
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/62—Quenching devices
    • C21D1/673—Quenching devices for die quenching
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/0062—Heat-treating apparatus with a cooling or quenching zone
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/08—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes
    • C21D9/085—Cooling or quenching
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/002—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working by rapid cooling or quenching; cooling agents used therefor
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon

Definitions

  • Certain embodiments of the present disclosure relate to a forming system, a forming device, and a forming method.
  • a forming device is known as a forming device that forms a metal material.
  • the forming device forms a component having a desired shape by pressing the metal material.
  • a forming system that forms a metal material
  • the forming system including: a forming device that performs quenching by forming the metal material that is heated; and an aging treatment device that performs aging treatment on a formed product formed by the forming device, in which, in the forming device, the metal material after undergoing solution treatment and then undergoing artificial aging treatment is formed.
  • a forming device that performs quenching by forming a metal material that is heated, in which the forming device forms a formed product in which precipitates remain in a solid solution state, in a stage after the forming and before aging treatment is performed.
  • a forming method of forming a metal material including: heating the metal material after undergoing solution treatment and then undergoing artificial aging treatment, forming the metal material, and performing quenching.
  • FIG. 1 is a block configuration diagram illustrating a forming system according to an embodiment of the present disclosure.
  • FIG. 2 is a schematic configuration view illustrating a forming device according to an embodiment of the present disclosure.
  • FIG. 3 A is a schematic side view illustrating a heating and expanding unit
  • FIG. 3 B is a sectional view illustrating a state in which a nozzle has sealed a metal pipe material.
  • FIG. 4 is a schematic view illustrating a process image in Comparative Example 1.
  • FIGS. 5 A and 5 B are views illustrating a relationship between a material temperature and a strength and a time in Comparative Examples 1 and 2.
  • FIG. 6 is a view illustrating a relationship between a material temperature and a strength and a time in Comparative Example 3.
  • FIG. 7 is a view illustrating a relationship between a material temperature and a strength and a time in Comparative Example 4.
  • FIG. 8 is a view illustrating a relationship between a material temperature and a strength and a time in Example.
  • FIGS. 9 A and 9 B are graphs illustrating a relationship between a Vickers hardness and an aging time in Comparative Example 2 and Example.
  • FIG. 10 is a graph illustrating a relationship between a heating temperature and a hardness when a T6-treated material is rapidly heated and water-cooled, and then undergoes artificial aging and natural aging.
  • FIG. 11 is a graph illustrating an image of a relationship between a thermal aging time and strength, a precipitate size, and a precipitate density in a precipitation-hardened aluminum alloy.
  • FIG. 12 is an image view illustrating a process of a change in the precipitate size and the precipitate density in a material in a production process of Comparative Examples 1 and 2.
  • the component formed by the forming device described above is used in order to construct a predetermined structure.
  • a predetermined structure For example, in the field of automobiles, weight reduction is being promoted for fuel efficiency improvement and environmental protection. Therefore, quenching to a formed product is performed by performing heating and expansion forming using a material to be solution-treated, such as a heat-treated aluminum alloy, and performing rapid cooling by heat dissipation due to the contact with a die.
  • a material to be solution-treated such as a heat-treated aluminum alloy
  • the forming device performs the quenching by forming the heated metal material. Thereafter, the aging treatment device performs the aging treatment of the formed product formed by the forming device.
  • the metal material after undergoing the solution treatment and then undergoing the artificial aging treatment is formed. Therefore, in the forming device, even in a case in which rapid heating is performed in an aspect having a small amount of input heat, the precipitates of the metal material are in the solid solution state. Therefore, in the subsequent aging treatment device, the precipitates can be finely dispersed in the formed product (for example, see FIG. 8 ). As a result, the strength of the formed product can be improved.
  • the strength of the formed product can be improved while the dimensional accuracy of the formed product is ensured.
  • the metal material after undergoing T6 treatment may be formed.
  • the strength of the formed product after the aging treatment can be improved.
  • the metal material may be an aluminum alloy.
  • the aluminum alloy has a low specific gravity, and thus the weight of the formed product can be reduced.
  • the forming device may form the metal material that is heated to 400° C. or higher. As a result, the precipitates can remain in the solid solution state.
  • the metal material may be a metal pipe material, and the forming device may form, by expansion, the metal pipe material that is heated.
  • the forming device may form, by expansion, the metal pipe material that is heated.
  • the forming device it is possible to form the formed product in which the precipitates remain in the solid solution state, in a stage after the forming and before the aging treatment is performed. Therefore, in the subsequent aging treatment device, the precipitates can be finely dispersed in the formed product (for example, see FIG. 8 ). As a result, the strength of the formed product can be improved. In addition, since it is not necessary to perform the solution treatment for improving the strength after the forming of the forming device, it is possible to suppress a decrease in the dimensional accuracy of the formed product. From the above, the strength of the formed product can be improved while the dimensional accuracy of the formed product is ensured.
  • FIG. 1 is a block configuration diagram illustrating a forming system 100 according to the present embodiment.
  • the forming system 100 is a system that forms a metal material.
  • a metal pipe material of an aluminum alloy is adopted as the metal material.
  • the metal pipe is formed as a formed product.
  • the metal material is not limited to the aluminum alloy as long as the metal material can undergo solution treatment, and, for example, a nickel alloy may be used.
  • the forming system 100 includes a forming device 1 and an aging treatment device 101 .
  • the forming device 1 is a device that performs quenching by forming, by expansion, a heated metal material.
  • the forming device 1 forms a metal pipe by a forming method called steel tube air forming (STAF) forming.
  • STAF steel tube air forming
  • the aging treatment device 101 is a device that performs aging treatment on the metal pipe formed by the forming device 1 .
  • the aging treatment device 101 is configured by, for example, a furnace that heats the metal pipe immediately after the forming, for a predetermined time.
  • the metal pipe after undergoing the forming is taken out from the forming device 1 , and is transported to the aging treatment device 101 by a transport mechanism or the like.
  • the aging treatment device 101 performs, for example, the heating at 100° C. to 170° C. for 12 to 24 hours.
  • FIG. 2 is a schematic configuration view of a forming device 1 according to the present embodiment.
  • the forming device 1 is a device that forms a metal pipe having a hollow shape by blow forming.
  • the forming device 1 is installed on a horizontal plane.
  • the forming device 1 includes a forming die 2 , a drive mechanism 3 , a holding unit 4 , a heating unit 5 , a fluid supply unit 6 , a cooling unit 7 , and a control unit 8 .
  • a metal pipe material 40 refers to a hollow article before the completion of forming via the forming device 1 .
  • the metal pipe material 40 is a steel-type pipe material that can be quenched.
  • a direction in which the metal pipe material 40 extends during the forming may be referred to as a “longitudinal direction”, and a direction perpendicular to the longitudinal direction may be referred to as a “width direction”.
  • the forming die 2 is a die that forms a metal pipe from the metal pipe material 40 , and that includes a lower die 11 and an upper die 12 that face each other in an up-down direction.
  • the lower die 11 and the upper die 12 are formed of a steel block.
  • Each of the lower die 11 and the upper die 12 is provided with a recessed portion in which the metal pipe material 40 is accommodated.
  • the respective recessed portions form a space having a target shape in which the metal pipe material is to be formed. Therefore, surfaces of the respective recessed portions are forming surfaces of the forming die 2 .
  • the lower die 11 is fixed to a base stage 13 via a die holder or the like.
  • the upper die 12 is fixed to a slide of the drive mechanism 3 via a die holder or the like.
  • the drive mechanism 3 is a mechanism that moves at least one of the lower die 11 and the upper die 12 .
  • the drive mechanism 3 has a configuration of moving only the upper die 12 .
  • the drive mechanism 3 includes a slide 21 that moves the upper die 12 so that the lower die 11 and the upper die 12 are joined together, a pull-back cylinder 22 as an actuator that generates a force for pulling the slide 21 upward, a main cylinder 23 as a drive source that downward-pressurizes the slide 21 , and a drive source 24 that applies a driving force to the main cylinder 23 .
  • the holding unit 4 is a mechanism that holds the metal pipe material 40 disposed between the lower die 11 and the upper die 12 .
  • the holding unit 4 includes a lower electrode 26 and an upper electrode 27 that hold the metal pipe material 40 on one end side of the forming die 2 in the longitudinal direction, and a lower electrode 26 and an upper electrode 27 that hold the metal pipe material 40 on the other end side of the forming die 2 in the longitudinal direction.
  • the lower electrodes 26 and the upper electrodes 27 on both sides in the longitudinal direction hold the metal pipe material 40 by interposing vicinities of end portions of the metal pipe material 40 from the up-down direction.
  • Upper surfaces of the lower electrodes 26 and lower surfaces of the upper electrodes 27 are formed with groove portions having a shape corresponding to an outer peripheral surface of the metal pipe material 40 .
  • Drive mechanisms (not illustrated) are provided in the lower electrodes 26 and the upper electrodes 27 and are movable independently of each other in the up-down direction.
  • the heating unit 5 heats the metal pipe material 40 .
  • the heating unit 5 is a mechanism that heats the metal pipe material 40 by energizing the metal pipe material 40 .
  • the heating unit 5 heats the metal pipe material 40 in a state in which the metal pipe material 40 is separated from the lower die 11 and the upper die 12 , between the lower die 11 and the upper die 12 .
  • the heating unit 5 includes the lower electrodes 26 and the upper electrodes 27 on both sides in the longitudinal direction, and a power supply 28 that causes a current to flow through the metal pipe material 40 via the electrodes 26 and 27 .
  • the heating unit may be disposed in a preceding process of the forming device 1 to perform heating externally.
  • the fluid supply unit 6 is a mechanism that supplies a high-pressure fluid into the metal pipe material 40 held between the lower die 11 and the upper die 12 .
  • the fluid supply unit 6 supplies the high-pressure fluid into the metal pipe material 40 that is brought into a high-temperature state by being heated by the heating unit 5 , to expand the metal pipe material 40 .
  • the fluid supply unit 6 is provided on both end sides of the forming die 2 in the longitudinal direction.
  • the fluid supply unit 6 includes a nozzle 31 that supplies the fluid from an opening portion of an end portion of the metal pipe material 40 to an inside of the metal pipe material 40 , a drive mechanism 32 that moves the nozzle 31 forward and backward with respect to the opening portion of the metal pipe material 40 , and a supply source 33 that supplies the high-pressure fluid into the metal pipe material 40 via the nozzle 31 .
  • the drive mechanism 32 brings the nozzle 31 into close contact with the end portion of the metal pipe material 40 in a state in which the sealing performance is ensured during the fluid supply and exhaust, and causes the nozzle 31 to be separated from the end portion of the metal pipe material 40 in other cases.
  • the fluid supply unit 6 may supply a gas such as high-pressure air and an inert gas, as the fluid. Additionally, the fluid supply unit 6 may include the heating unit 5 together with the holding unit 4 including a mechanism that moves the metal pipe material 40 in the up-down direction as the same device.
  • FIG. 3 A is a schematic side view illustrating the heating and expanding unit 150 .
  • FIG. 3 B is a sectional view illustrating a state in which a nozzle 31 has sealed a metal pipe material 40 .
  • the heating and expanding unit 150 includes the lower electrode 26 , the upper electrode 27 , an electrode mounting unit 151 in which the electrodes 26 and 27 are mounted, the nozzle 31 , the drive mechanism 32 , an elevating unit 152 , and a unit base 153 .
  • the electrode mounting unit 151 includes an elevating frame 154 and electrode frames 156 and 157 .
  • the electrode frames 156 and 157 function as a part of a drive mechanism 60 that supports and moves each of the electrodes 26 and 27 .
  • the drive mechanism 32 drives the nozzle 31 and moves up and down together with the electrode mounting unit 151 .
  • the drive mechanism 32 includes a piston 61 that holds the nozzle 31 , and a cylinder 62 that drives the piston.
  • the elevating unit 152 includes an elevating frame base 64 attached to an upper surface of the unit base 153 , and an elevating actuator 66 that applies an elevating operation to the elevating frame 154 of the electrode mounting unit 151 by using this elevating frame base 64 .
  • the elevating frame base 64 includes guide portions 64 a and 64 b that guide the elevating operation of the elevating frame 154 with respect to the unit base 153 .
  • the elevating unit 152 functions as a part of the drive mechanism 60 of the holding unit 4 .
  • the heating and expanding unit 150 includes a plurality of unit bases 153 of which the upper surfaces have different inclination angles, and is allowed to collectively change and adjust inclination angles of the lower electrode 26 , the upper electrode 27 , the nozzle 31 , the electrode mounting unit 151 , the drive mechanism 32 , and the elevating unit 152 by replacing the unit bases 153 .
  • the nozzle 31 is a cylindrical member into which the end portion of the metal pipe material 40 can be inserted.
  • the nozzle 31 is supported by the drive mechanism 32 so that a center line of the nozzle 31 coincides with a reference line SL 1 .
  • An inner diameter of a feed port 31 a at an end portion of the nozzle 31 on the metal pipe material 40 side substantially coincides with an outer diameter of the metal pipe material 40 after expansion forming.
  • the nozzle 31 supplies the high-pressure fluid from an internal flow path 63 to the metal pipe material 40 .
  • the high-pressure fluid include a gas.
  • the cooling unit 7 is a mechanism that cools the forming die 2 .
  • the cooling unit 7 can rapidly cool the metal pipe material 40 by cooling the forming die 2 when the expanded metal pipe material 40 comes into contact with the forming surface of the forming die 2 .
  • the cooling unit 7 includes flow paths 36 formed inside the lower die 11 and the upper die 12 and a water circulation mechanism 37 that supplies a cooling water to the flow paths 36 and causes the cooling water to circulate through the flow paths 36 .
  • the control unit 8 is a device that controls the entire forming device 1 .
  • the control unit 8 controls the drive mechanism 3 , the holding unit 4 , the heating unit 5 , the fluid supply unit 6 , and the cooling unit 7 .
  • the control unit 8 repeatedly performs the operation of forming the metal pipe material 40 using the forming die 2 .
  • a part of the metal pipe material 40 is made to enter a gap between the lower die 11 and the upper die 12 , and then die closing is further performed to crush the entering part to form a flange portion.
  • the metal pipe material 40 comes into contact with the forming surface, the metal pipe material 40 is quenched by being rapidly cooled by the forming die 2 cooled by the cooling unit 7 .
  • FIG. 4 is a schematic view illustrating a process image in Comparative Example 1.
  • a heating furnace 202 heats a plate material 210 to about 500° C.
  • the plate material 210 is a material in a state in which the solution treatment or the like is not performed in advance, such as a casting material or an extrusion material.
  • a forming device 200 forms the plate material 210 into a formed product 211 .
  • the formed product 211 is quenched by the rapid cooling.
  • the treatment of the heating furnace 202 and the forming device 200 corresponds to the solution treatment.
  • the aging treatment device 201 performs the artificial aging treatment on the formed product 211 .
  • PF 1 is a location at which the heating is performed.
  • PF 2 is a location at which the hot pressing is performed.
  • PF 3 is a location at which the die quenching is performed.
  • FIG. 11 is a graph illustrating an image of a relationship between a thermal aging time and a strength (graph GE 1 ), a precipitate size (graph GE 2 ), and a precipitate density (graph GE 3 ) of the precipitation-hardened aluminum alloy.
  • graph GE 1 a thermal aging time and a strength
  • graph GE 2 a precipitate size
  • graph GE 3 a precipitate density
  • the forming device 1 may form the metal material that is heated to 400° C. or higher. As a result, the precipitates can remain in the solid solution state.
  • the forming device 1 it is possible to form the formed product in which the precipitates remain in the solid solution state, in a stage after the forming and before the aging treatment is performed. Therefore, in the subsequent aging treatment device 101 , the precipitates can be finely dispersed in the formed product (for example, see FIG. 8 ). As a result, the strength of the formed product can be improved. In addition, since it is not necessary to perform the solution treatment for improving the strength after the forming of the forming device 1 , it is possible to suppress the decrease in the dimensional accuracy of the formed product. From the above, the strength of the formed product can be improved while the dimensional accuracy of the formed product is ensured.
  • the metal pipe material 40 after undergoing the T6 treatment is adopted as the metal pipe material 40 to be formed by the forming device 1 .
  • the treatment applied to the metal pipe material 40 before the forming is not limited to the T6 treatment as long as the solution treatment is performed and then the artificial aging treatment is performed.
  • the metal pipe material 40 that has undergone the solution treatment, the cold working, and then the artificial aging hardening treatment may be used.
  • the configuration of the forming device 1 is not particularly limited, and may be changed from the structures illustrated in FIGS. 2 and 3 .
  • a forming device that performs the hot stamping on the metal material that has undergone the artificial aging treatment by performing the solution treatment may be used.
  • the aging treatment is performed in the aging treatment device after the forming.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Fluid Mechanics (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
US19/317,725 2023-05-17 2025-09-03 Forming system, forming device, and forming method Pending US20260001117A1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP2023081786 2023-05-17
JP2023-081786 2023-05-17
JP2023216953 2023-12-22
JP2023-216953 2023-12-22
PCT/JP2024/017153 WO2024237148A1 (ja) 2023-05-17 2024-05-08 成形システム、成形装置、及び成形方法

Related Parent Applications (1)

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US (1) US20260001117A1 (cg-RX-API-DMAC7.html)
EP (1) EP4714567A1 (cg-RX-API-DMAC7.html)
JP (1) JPWO2024237148A1 (cg-RX-API-DMAC7.html)
KR (1) KR20260009798A (cg-RX-API-DMAC7.html)
CN (1) CN121358552A (cg-RX-API-DMAC7.html)
WO (1) WO2024237148A1 (cg-RX-API-DMAC7.html)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6033499A (en) * 1998-10-09 2000-03-07 General Motors Corporation Process for stretch forming age-hardened aluminum alloy sheets
JP4933788B2 (ja) * 2006-02-13 2012-05-16 本田技研工業株式会社 バルジ成形方法及び中空成形体
JP2013188793A (ja) 2012-03-15 2013-09-26 Kyoho Mach Works Ltd 熱間プレス装置及び熱間プレス方法
GB2590052B (en) * 2019-09-25 2021-12-08 Imp College Innovations Ltd Aluminium forming method
JP2023025592A (ja) * 2021-08-10 2023-02-22 株式会社日立ハイテク アルミニウム合金板加工方法

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JPWO2024237148A1 (cg-RX-API-DMAC7.html) 2024-11-21
CN121358552A (zh) 2026-01-16
WO2024237148A1 (ja) 2024-11-21
EP4714567A1 (en) 2026-03-25

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