WO2016043326A1 - Élément structurel de véhicule et procédé de production associé - Google Patents

Élément structurel de véhicule et procédé de production associé Download PDF

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Publication number
WO2016043326A1
WO2016043326A1 PCT/JP2015/076777 JP2015076777W WO2016043326A1 WO 2016043326 A1 WO2016043326 A1 WO 2016043326A1 JP 2015076777 W JP2015076777 W JP 2015076777W WO 2016043326 A1 WO2016043326 A1 WO 2016043326A1
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WO
WIPO (PCT)
Prior art keywords
standing wall
wall portion
shape
cross
vehicle
Prior art date
Application number
PCT/JP2015/076777
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English (en)
Japanese (ja)
Inventor
彰 尾林
和章 北口
洋康 小坂
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豊田鉄工株式会社
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Application filed by 豊田鉄工株式会社 filed Critical 豊田鉄工株式会社
Publication of WO2016043326A1 publication Critical patent/WO2016043326A1/fr

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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
    • 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
    • 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
    • B21D47/00—Making rigid structural elements or units, e.g. honeycomb structures
    • B21D47/01—Making rigid structural elements or units, e.g. honeycomb structures beams or pillars
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K11/00—Resistance welding; Severing by resistance heating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/04—Door pillars ; windshield pillars

Definitions

  • the present invention relates to a vehicle structural member, and more particularly to an improvement in a vehicle structural member in which a hat cross-sectional component and a U-shaped cross-sectional component are overlapped and joined together.
  • a longitudinal shape and a cross section perpendicular to the longitudinal direction of the longitudinal shape is a hat (cap with a hook) cross-sectional shape, a first projecting wall portion, and a first projecting wall portion
  • a hat cross-section component comprising a pair of first standing wall portions bent to the same side from both ends thereof, and a pair of flange portions extending outward from the front ends of the first standing wall portions
  • a longitudinal shape And a section perpendicular to the longitudinal direction of the longitudinal shape forms a U-shape, and the second projecting wall part and a pair bent from the both ends of the second projecting wall part to the same side
  • C the pair of first standing wall portions and the pair of second standing wall portions overlap each other substantially in parallel.
  • the hat cross-sectional component and the U-shaped cross-sectional component are overlapped in the same direction and joined together.
  • a vehicle structural member that catches the vehicle is known. Reinforcement of the center pillar for a vehicle described in Patent Document 1 is an example, and a U-shaped cross-section component (second reinforcement 4) is placed inside the hat cross-section component (first reinforcement 3) from the second protruding wall side. The first standing wall portion and the second standing wall portion on both sides are brought into close contact with each other and integrally welded.
  • the U-shaped cross-section component 102 is inserted and overlapped inside the hat cross-section component 100, and the hat cross-section components 100 and The U-shaped cross-section component 102 is positioned, the pair of flange portions 104 of the hat cross-section component 100 are fixed by the clamp 106, and the pair of spot welding electrodes 110 and 112 are brought close to each other, so When spot welding is performed with the wall 116 sandwiched, if the U-shaped cross-section component 102 has a relatively high strength, the warped shape of the first standing wall 114 as shown in FIG.
  • the present invention has been made against the background of the above circumstances.
  • the object of the present invention is to provide a vehicle structural member in which a hat cross-sectional component and a U-shaped cross-sectional component are overlapped and integrally joined. It is to be able to appropriately join the first standing wall portion and the second standing wall portion of the U-shaped cross-section part.
  • the first invention has (a) a longitudinal shape, and a cross section perpendicular to the longitudinal direction of the longitudinal shape forms a hat cross-sectional shape, and the first projecting wall portion A hat cross section including a pair of first standing wall portions bent to the same side from both ends of the first projecting wall portion, and a pair of flange portions respectively extending outward from the tip of the first standing wall portion And (b) a longitudinal shape and a cross section perpendicular to the longitudinal direction of the longitudinal shape is a U-shape, a second protruding wall portion, and both ends of the second protruding wall portion A U-shaped cross-section component comprising a pair of second standing wall portions bent from the same side to the same side, and (c) the pair of first standing wall portions and the pair of second standing wall portions,
  • the U-shaped cross-sectional component and the U-shaped cross-sectional component are overlapped in the same direction so that they overlap each other substantially in parallel.
  • the first projecting wall portion and the second projecting wall portion are disposed on the vehicle in a posture positioned on the outer side of the vehicle and supported at both ends in the longitudinal direction.
  • the first projecting wall portion and the pair of first standing wall portions enter the inside of the pair of second standing wall portions, while the hat cross-sectional component is inserted and superimposed on the inside of the U-shaped cross-sectional component from the first protruding wall portion side, (e) the U-shaped cross-sectional component is higher in strength than the hat cross-sectional component, and The vicinity of the flange portion side corner portion of the first standing wall portion is bent and deformed so as to be in close contact with the inner side surface of the opening portion of the second standing wall portion, and is integrated with the second standing wall portion. It is characterized by being joined.
  • a portion near the flange side corner of the first standing wall is a warped shape (curved) that opens outward toward the flange side.
  • the warped shape so that a gap is formed at the tip portion of the second standing wall portion between the warped shape portion and the warped shape portion.
  • a copy shape portion is provided along the portion.
  • the third invention is characterized in that, in the vehicle structural member of the second invention, the hat cross-sectional component is formed by cold pressing, and the warped shape is formed by a spring back.
  • a portion in the vicinity of the flange portion side corner portion of the first standing wall portion, a tip portion of the second standing wall portion are characterized by being integrally joined by spot welding.
  • the vehicle structural member in the vehicle structural member according to any one of the first to fourth aspects, is disposed along the vertical direction of the vehicle and supported at both ends in the vertical direction.
  • a longitudinal shape and a cross section perpendicular to the longitudinal direction of the longitudinal shape form a hat cross-sectional shape, a first protruding wall portion, and a first protruding wall portion thereof
  • a hat cross-section component including a pair of first standing wall portions bent to the same side from both ends and a pair of flange portions extending outward from the tip of the first standing wall portion is formed by press working.
  • a first press molding step and (b) a longitudinal shape, and a cross section perpendicular to the longitudinal direction of the longitudinal shape forms a U-shape, a second projecting wall portion, and a second projecting portion thereof
  • a joining step of sandwiching the first standing wall portion and the second standing wall portion together and integrally joining the hat cross-section component and the U-shaped cross-section component in the same direction.
  • the first projecting wall portion and the second projecting wall portion are disposed on the vehicle in a posture positioned on the vehicle outer side and supported at both ends in the longitudinal direction, so that from the vehicle outer side.
  • the U-shaped cross-section component is stronger than the hat cross-section component, and the hat cross-section component is cold-pressed in the first press molding step.
  • the U-shaped cross-section component is molded by hot pressing or warm pressing, and (f) in the joining step, the first projecting wall portion and the pair of pairs are molded.
  • the first stand wall A portion in the vicinity of the corner portion on the flange portion side of the portion and a tip portion on the opening side of the second standing wall portion are clamped so as to be in close contact with each other, and are integrally joined.
  • a seventh aspect of the present invention is the method for manufacturing a structural member for a vehicle according to the sixth aspect of the invention.
  • a portion near the flange portion side corner portion of the first standing wall portion is moved outward toward the flange portion side by a spring back.
  • the tip portion of the second standing wall portion follows the warped shape portion so that a gap is formed between the warped shape portion and the warped shape portion.
  • a pair of spot welding electrodes each movable in the pressurizing direction are relatively brought close to each other. Spot welding is performed by pinching the vicinity of the flange portion side corner portion of the first standing wall portion and the tip portion of the second standing wall portion.
  • the hat cross-section component is inserted from the first protruding wall portion side into the U-shaped cross-section component and overlapped, and the portion near the flange side corner of the first standing wall portion is the first. 2 It is bent and deformed so as to be in close contact with the inner surface of the front end portion of the standing wall portion, and the deformation direction of the bending deformation is opposite to the case of FIG. That is, since it is in the slack direction approaching the flange portion, its deformation resistance is relatively small, and even if there is a gap, both can be securely adhered and can be appropriately joined with high joint strength. That is, in FIG.
  • the vicinity of the flange portion side corner portion of the first standing wall portion is bent and deformed in the inner direction of the hat cross-sectional shape, that is, in the direction away from the flange portion, so that tensile stress occurs and deformation resistance increases. It is.
  • the vicinity of the corner portion on the flange portion side of the first standing wall portion has a warped shape, while the tip portion of the second standing wall portion is between the warped shape portion. Since the profile portion is provided along the warp shape portion so that a gap is formed in the upper wall portion, the hat cross-section component and the U-shaped cross-section component are overlapped regardless of the warp shape of the first standing wall portion. While avoiding the interference between the warped shape portion and the profile shape portion, the warped shape portion can be flexibly deformed and bonded appropriately so that the gap is surely eliminated due to a decrease in deformation resistance.
  • the third invention is a case where the hat cross-section part is formed by cold pressing, and the warp shape is formed by the spring back, but there is a gap between the warp-shaped portion and the tip portion of the second standing wall portion. Is formed so that the warp-shaped portion overlaps the hat cross-sectional component and the U-shaped cross-sectional component regardless of variations in the dimensions of the warp-shaped portion due to the spring back. While avoiding interference with the copying shape portion, the warping shape portion can be bent and deformed so that there is no gap, and can be appropriately joined.
  • 4th invention is a case where the vicinity part of the flange part side corner of the 1st standing wall part and the tip part of the 2nd standing wall part are spot-welded, and the vicinity of the flange part side corner part of the 1st standing wall part Since the deformation resistance at the time of bending and deforming the portion is small, even if it is spot welding, it is possible to securely bring them into close contact with each other and to join them appropriately, and excellent productivity can be obtained by automation or the like.
  • the fifth invention relates to a vehicle center pillar reinforcement, and the present invention can be suitably applied.
  • a hat cross-sectional component formed by cold pressing and a relatively high-strength U-shaped cross-sectional component formed by hot pressing or warm pressing are overlapped and integrally joined.
  • the hat cross-section component is inserted into the U-shaped cross-section component from the first projecting wall portion side and overlapped with each other, and a portion near the flange portion side corner portion of the first standing wall portion and the second portion Since it is clamped so as to be in close contact with the tip portion of the standing wall portion, they are integrally joined together, so that substantially the same effect as the first invention can be obtained.
  • the first standing member when there is a gap between the first standing wall portion and the second standing wall portion due to a dimensional error of a hat cross-sectional component that is relatively inferior in processing accuracy due to a spring back or the like, the first standing member having a relatively low strength.
  • the wall portion is bent and deformed and is brought into close contact with the second standing wall portion, the deformation direction of the bending deformation of the first standing wall portion is opposite to the case of FIG. 6, and the bending angle of the flange side corner portion is reduced. Since it is in the slack direction, its deformation resistance is relatively small, and even if there is a gap, it is possible to ensure that they are in close contact with each other and can be joined appropriately.
  • the 7th invention is a case where the vicinity part of the flange part side corner part of the 1st standing wall part is curving shape by a spring back, and the curvature shape of the curvature shape is in the tip part of the 2nd standing wall part. Since the profile portion is provided along the warped shape portion so that a gap is formed between the first and the second wall portion, the hat cross-section component and the U-shaped cross-section component are connected to each other regardless of the spring back of the first standing wall portion. While avoiding interference between the first standing wall portion and the second standing wall portion at the time of overlapping, the warped shape portion can be flexibly deformed and bonded appropriately so that the gap is surely eliminated due to a decrease in deformation resistance. .
  • a pair of spot welding electrodes that are movable in the pressurizing direction are relatively moved closer to each other so that the vicinity of the flange portion side corner portion of the first standing wall portion and the tip portion of the second standing wall portion are In the case where spot welding is performed with the pressure between the two, substantially the same effect as the fourth invention can be obtained.
  • FIG. 2 is an enlarged sectional view taken along the line II-II in FIG. It is the perspective view which isolate
  • FIG. 4 is an enlarged cross-sectional view taken along the line IV-IV in FIG. 3. It is sectional drawing explaining the joining process of superposing the U-shaped cross-section component of FIG. 3 on the outer side of a hat cross-section component, and spot welding a 1st standing wall part and a 2nd standing wall part. It is sectional drawing at the time of carrying out spot welding of a 1st standing wall part and a 2nd standing wall part, with a hat cross-section part piled up on the outer side of a U-shaped cross-section part.
  • the present invention is suitably applied to the center pillar reinforcement for a vehicle, but can also be applied to the reinforcement of other pillars such as a front pillar and a rear pillar, or a vehicle other than the pillar reinforcement such as a bumper reinforcement or a rocker. It can also be applied to structural members.
  • the structural member for a vehicle is configured to have a hat cross-section part and a U-shaped cross-section part, and further closes an opening portion of the hat cross-section part to form a closed cross-section hollow structure such as a plate shape or a hat cross-section shape. Parts can also be fixed to the flange.
  • the hat cross-section component is superimposed on the inside of the U-shaped cross-section component, and the first standing wall portion and the second standing wall portion are integrally joined. May be brought into close contact with each other or integrally joined by spot welding or the like, or provided with a gap between the first protruding wall portion, the second protruding wall portion, and the pair of second standing wall portions. An enclosed space may be formed.
  • the pair of first standing wall portions and second standing wall portions are provided so as to be bent substantially at right angles from the first projecting wall portion or the second projecting wall portion and extend substantially in parallel. It is also possible to incline in the expanding direction so as to be wide.
  • Spot welding is suitable as a joining means for integrally joining the first standing wall portion and the second standing wall portion, but other welding means such as laser welding and arc welding, or various means such as rivets and caulking. Can be adopted.
  • the hat cross-sectional component and the U-shaped cross-sectional component may have substantially the same cross-sectional shape over the entire length in the longitudinal direction depending on the type of the structural member for the vehicle, but only the intermediate portion in the longitudinal direction may be configured as described above. However, various modes are possible, such as continuously changing the cross-sectional shape in the longitudinal direction, or simply providing the U-shaped cross-section part in a part of the hat cross-sectional part in the longitudinal direction.
  • the U-shaped cross-sectional component has a higher strength than the hat cross-sectional component, for example, an ultra high tensile steel plate having a tensile strength of about 980 MPa or more.
  • Hot pressing is a process in which a steel sheet is heated to an austenite region and then pressed by a low-temperature press mold, so that it is molded into a predetermined shape and simultaneously quenched and quenched and hardened, and high shape accuracy is obtained.
  • Warm press working is performed by heating to about 300 ° C to 600 ° C, for example. It is not hardened and hardened, but it can form a relatively thick steel plate and has a high strength U-shaped cross-section.
  • U-shaped cross-section parts can not only use steel plates with high tensile strength, but can also be increased in strength by increasing the plate thickness.
  • the U-shaped cross-section component the warped shape portion may be bent and deformed to be in close contact with the copy shape portion.
  • a high-tensile steel plate having a tensile strength of 440 MPa or more is preferably used.
  • FIG. 1 is a view showing a vehicle center pillar reinforcement 10 according to an embodiment of the present invention, and is a front view seen from the vehicle inner side.
  • FIG. 2 is an enlarged cross-sectional view in the horizontal direction substantially perpendicular to the longitudinal direction of the vehicle center pillar reinforcement 10 arranged in the direction of arrows II-II in FIG. 1, that is, in the vertical direction of the vehicle.
  • the center pillar reinforcement 10 for vehicles is comprised by superimposing the U-shaped cross-section component 14 and the closure component 16 on both surfaces of the hat cross-section component 12 and integrally joining them.
  • the vehicle center pillar reinforcement 10 is disposed along the vertical direction on the right side of the vehicle, and the upper and lower ends of the hat cross-section component 12 are fixed to and supported by a roof side rail, a side sill, etc. It is for receiving the side collision load etc. which are applied from the direction outside, and ensuring the safety
  • the hat cross-section component 12 has a longitudinal shape, and a cross section perpendicular to the longitudinal direction of the longitudinal shape, that is, a substantially horizontal cross section shown in FIG.
  • a pair of flange portions 24 each extending from the front end of the wall portion 22 to the outside, that is, the vehicle longitudinal direction are provided.
  • the hat cross-sectional component 12 is also provided with attachment portions 26 and 28 that are fixed to the roof side rail, the side sill, and the like at both ends in the longitudinal direction.
  • the U-shaped cross-section component 14 has a longitudinal shape and a section perpendicular to the longitudinal direction of the longitudinal shape, that is, a substantially horizontal section shown in FIG.
  • the closing part 16 has a longitudinal shape, and a substantially flat part in which a cross section perpendicular to the longitudinal direction of the longitudinal shape, that is, a substantially horizontal cross section shown in FIG. It is.
  • the hat cross-section component 12 and the U-shaped cross-section component 14 have openings in the hat cross-section and the U-shaped cross section so that the pair of first standing wall portions 22 and the pair of second standing wall portions 32 overlap each other substantially in parallel. They are superposed in the same posture with the side facing toward the inside of the vehicle and are integrally joined to each other.
  • the width dimension of the second protruding wall portion 30 is larger than the width dimension of the first protruding wall portion 20, and the first protruding wall portion 20 and the pair of first standing wall portions 22 are a pair of second standing walls.
  • the hat cross-section component 12 is inserted into the U-shaped cross-section component 14 from the first projecting wall portion 20 side and overlapped so as to enter the inside of the wall portion 32, and the first standing wall portion 22 and the second standing wall are overlapped.
  • the parts 32 are joined together by spot welding.
  • a welded portion SP1 in FIG. 2 is a spot welded by this spot welding.
  • the first projecting wall portion 20 and the second projecting wall portion 30 are also superimposed so as to be in close contact with each other, and are integrally joined to each other by spot welding.
  • a welded portion SP2 in FIG. 2 is a spot welded by this spot welding.
  • the substantially flat closing component 16 has substantially the same shape as the outer peripheral shape of the hat cross-sectional component 12, and is superposed so as to be in close contact with the surface on the vehicle inner side of the flange portion 24, and is spot welded. They are joined together.
  • a welded portion SP3 in FIG. 2 is a welded part by spot welding.
  • the hat cross-sectional component 12 is lower in strength than the U-shaped cross-sectional component 14, and is composed of, for example, a high-tensile steel plate having a tensile strength of 440 MPa or more and a plate thickness of 2 mm or less, which is relatively cold.
  • a high-tensile steel plate having a tensile strength of 440 MPa or more and a plate thickness of 2 mm or less, which is relatively cold.
  • the first standing wall portion 22 has an outer portion in the vicinity of the flange portion side corner portion toward the flange portion 24 side.
  • a curved warped portion 34 that opens to the back is formed by a springback.
  • the U-shaped cross-sectional component 12 is made of, for example, an ultra-high-strength steel plate having a tensile strength of about 1180 MPa or more, and the plate thickness is thicker than that of the hat cross-sectional component 12 and has a hardenability. Manufactured mainly by bending and drawing by hot pressing using steel plates.
  • the U-shaped cross-sectional component 12 is molded with a relatively high dimensional accuracy by being molded by hot pressing in this manner, but the first vertical wall portion 32 has a first end portion on the opening side.
  • a copying shape portion 36 is provided along the warp shape portion 34 of the standing wall portion 22. As shown in FIG.
  • the profiled portion 36 does not interfere with the first standing wall portion 22 and the second standing wall portion 32 when the hat cross-section component 12 and the U-shaped cross-section component 14 are overlapped.
  • a slight predetermined gap is formed between the warped shape portion 34.
  • the step of forming the hat cross-sectional component 12 by the cold pressing is a first press forming step
  • the step of forming the U-shaped cross-sectional component 14 by hot pressing is the second press forming step.
  • the warp shape portion 34 and the copy shape portion 36 are omitted.
  • the hat cross-section part 12 and the U-shaped cross-section part 14 thus formed are overlapped and spot-welded so that the warped shape portion 34 and the profile shape portion 36 are in close contact with each other.
  • the hat cross-section component 12 is inserted into the U-shaped cross-section component 14 from the first projecting wall portion 20 side and overlapped with the positioning pin 108 or the like.
  • the hat cross-section component 12 and the U-shaped cross-section component 14 are positioned, and the pair of flange portions 24 of the hat cross-section component 12 are fixed by the clamp 106.
  • the pair of spot welding electrodes 110 and 112 that can move in the pressurizing direction are relatively brought close to each other, whereby the warped shape portion of the first standing wall portion 22 is obtained.
  • 34 and spot-shaped portion 36 at the tip end portion of second standing wall portion 32 are pinched and spot welded.
  • the warped shape portion 34 of the first standing wall portion 22 is bent and deformed so as to be in close contact with the copying shape portion 36 and integrally joined.
  • the deformation direction of the warped shape portion 34 is an outward direction of the hat cross-sectional shape, that is, a slack direction approaching the flange portion 24 fixed by the clamp 106, and the curved shape warped shape portion 34 is crushed from the bulging side. Since compression deformation occurs, the deformation resistance becomes smaller than in FIG. 6, and both can be appropriately pressurized to perform spot welding. That is, in FIG. 6, the vicinity of the flange side corner portion of the first standing wall portion 114 is bent and deformed in the inner direction of the hat cross-sectional shape, that is, in the direction away from the flange portion 104. It grows.
  • the step of spot welding by sandwiching the warped shape portion 34 and the copying shape portion 36 in this way is the joining step.
  • Such a vehicle center pillar reinforcement 10 has a posture in which the first projecting wall portion 20 and the second projecting wall portion 30 that are integrally joined are located on the vehicle outer side, and is vertically disposed on the right side portion of the vehicle. Arranged along.
  • a center pillar outer plate 40 having a hat cross-sectional shape that is slightly larger than the hat cross-sectional component 12 is used so as to be integrally fixed to the pair of flange portions 24 of the hat cross-sectional component 12 by spot welding or the like.
  • a high-strength U-shaped cross-sectional component 14 is superposed on the projecting side of the hat cross-sectional component 12, that is, the vehicle outer side, and is integrally fixed. Since the 12 openings are closed by the closing part 16 to form a hollow structure with a substantially rectangular closed cross section, a side collision load applied from the lateral direction of the vehicle is appropriately received, and the passenger is prevented from entering the vehicle interior. Can be secured appropriately.
  • the hat cross-section component 12 is inserted into the U-shaped cross-section component 14 from the first projecting wall portion 20 side and overlapped, and the first standing wall portion 22 is overlapped.
  • the flange portion side corner portion is bent and deformed so as to be in close contact with the inner surface of the tip portion of the second standing wall portion 32, and the deformation direction of the bending deformation is shown in FIG.
  • the outer direction of the hat cross-sectional shape that is, the slack direction approaching the flange portion 24, the deformation resistance is relatively small, and even if there is a gap, the two are surely brought into close contact with each other with high bonding strength. Can be joined.
  • the relatively high-strength U-shaped cross-sectional component 14 is overlapped and integrally joined to the outer side of the hat cross-sectional component 12, a side collision load applied from the outer side of the vehicle, that is, the lateral direction of the vehicle, etc. Can be appropriately received, and the intrusion into the vehicle compartment can be suppressed to ensure the safety of the passenger.
  • a portion near the flange side corner of the first standing wall portion 22 has a warped shape, while a gap is formed between the tip portion of the second standing wall portion 32 and the warped shape portion 34. Since the profile shape portion 36 is provided along the warp shape portion 34 so as to be formed, the hat cross-section component 12 and the U-shaped cross-section component 14 are overlapped regardless of the warp shape of the first standing wall portion 22. While avoiding interference between the warped shape portion 34 and the copying shape portion 36, the warped shape portion 34 can be flexibly deformed and bonded appropriately so that the gap is surely eliminated due to a decrease in deformation resistance.
  • the warped shape portion 34 is formed by a springback by forming the hat cross-sectional component 12 by cold pressing, but the tip portion of the second standing wall portion 32 is connected to the warped shape portion 34. Since the copy-shaped portion 36 is provided so that a gap is formed between them, the hat cross-sectional component 12 and the U-shaped cross-sectional component 14 are overlapped regardless of variations in the dimensions of the warped shape portion 34 due to the springback. While avoiding the interference between the warped shape portion 34 and the copying shape portion 36, the warped shape portion 34 can be appropriately deformed and bonded so that there is no gap.
  • the warped shape portion 34 of the first standing wall portion 22 and the copying shape portion 36 of the second standing wall portion 32 is small, it is possible to ensure that both of them are in close contact with each other and to join them properly, such as automation. Can provide excellent productivity.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Body Structure For Vehicles (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)

Abstract

La présente invention concerne un élément structurel de véhicule dans lequel un composant de section transversale en forme de chapeau et un élément de section transversale en U sont superposés et reliés de façon solidaire, la présente invention pouvant joindre de façon appropriée une première partie de paroi verticale de l'élément de section transversale en forme de chapeau et une seconde partie de paroi verticale de l'élément de section transversale en U. Un élément de section transversale en forme de chapeau (12) est inséré à partir d'un premier côté de partie de paroi saillante (20) dans un élément de section transversale en U (14) et les deux éléments sont superposés. Une première section de partie de paroi verticale (22) qui se situe au voisinage d'une partie de coin de côté de partie de bride est déviée/déformée de manière à venir en contact avec une surface intérieure d'une section de pointe d'une seconde partie de paroi verticale (32) et est reliée d'un seul tenant à celle-ci. La direction de déformation de la déviation/déformation est la direction extérieure de la forme de section transversale en forme de chapeau, à savoir la direction dans laquelle la forme de section transversale en forme de chapeau se rapproche de la partie de bride (24) et retombe, et par conséquent la résistance à la déformation est relativement faible et les deux éléments peuvent être mis en contact et reliés de manière appropriée de façon sûre avec une force de liaison élevée, même s'il y a un espace entre eux.
PCT/JP2015/076777 2014-09-19 2015-09-18 Élément structurel de véhicule et procédé de production associé WO2016043326A1 (fr)

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JP6559638B2 (ja) * 2016-10-26 2019-08-14 豊田鉄工株式会社 車両用構造部材
WO2018091951A1 (fr) * 2016-11-21 2018-05-24 Arcelormittal Élément de renfort comprenant une patte cintrée à froid
KR102451902B1 (ko) * 2017-12-13 2022-10-06 현대자동차 주식회사 후방 차체 보강구조
JP6995708B2 (ja) * 2018-07-02 2022-01-17 豊田鉄工株式会社 車両用補強部材
JP7240308B2 (ja) * 2019-12-18 2023-03-15 トヨタ自動車東日本株式会社 車両用ピラー構造

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CN115041796A (zh) * 2022-06-30 2022-09-13 东风柳州汽车有限公司 一种汽车纵梁结构的焊接方法及焊接装置

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