WO2014017167A1 - 摩擦攪拌接合構造体 - Google Patents
摩擦攪拌接合構造体 Download PDFInfo
- Publication number
- WO2014017167A1 WO2014017167A1 PCT/JP2013/064976 JP2013064976W WO2014017167A1 WO 2014017167 A1 WO2014017167 A1 WO 2014017167A1 JP 2013064976 W JP2013064976 W JP 2013064976W WO 2014017167 A1 WO2014017167 A1 WO 2014017167A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- aluminum
- steel
- sides
- friction stir
- flange
- Prior art date
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/11—Understructures, i.e. chassis frame on which a vehicle body may be mounted with resilient means for suspension, e.g. of wheels or engine; sub-frames for mounting engine or suspensions
-
- 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
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
- B23K20/122—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding
-
- 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
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
- B23K20/122—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding
- B23K20/1265—Non-butt welded joints, e.g. overlap-joints, T-joints or spot welds
-
- 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
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
- B23K20/129—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding specially adapted for particular articles or workpieces
-
- 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
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/16—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating with interposition of special material to facilitate connection of the parts, e.g. material for absorbing or producing gas
-
- 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
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/22—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating taking account of the properties of the materials to be welded
- B23K20/227—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating taking account of the properties of the materials to be welded with ferrous layer
- B23K20/2275—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating taking account of the properties of the materials to be welded with ferrous layer the other layer being aluminium
-
- 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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/006—Vehicles
-
- 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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/18—Sheet panels
- B23K2101/185—Tailored blanks
-
- 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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/34—Coated articles, e.g. plated or painted; Surface treated articles
-
- 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
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/08—Non-ferrous metals or alloys
- B23K2103/10—Aluminium or alloys thereof
-
- 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
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/18—Dissimilar materials
- B23K2103/20—Ferrous alloys and aluminium or alloys thereof
Definitions
- the present invention relates to a friction stir welded structure in which an electrodeposition coating is previously applied to a steel member, an aluminum alloy member is superposed on the steel member, and a superposed polymerization portion is friction stir welded at a joint portion.
- Friction stir welding is known as a method of joining dissimilar materials, such as aluminum alloy material and a steel plate (for example, refer to patent documents 1.).
- this friction stir welding method first, the steel plate is placed on a backup jig, and the aluminum alloy material is superimposed on the steel plate.
- the welding pin (protrusion) of the welding tool is made to enter the welding portion by pressing the rotating welding tool while rotating the welding tool.
- the joint i.e., the aluminum alloy material and the steel plate
- the jointing tool is friction stir welded by moving the jointing tool along the joint.
- a zinc-plated film may be formed to secure corrosion resistance, and then a resin-based coating film may be formed on the zinc-plated film by electrodeposition coating.
- a steel plate on which a resin-based coating film is formed is friction stir welded to an aluminum alloy material at a joint, the resin coating film placed on a backup jig peels off due to the heat generated during the friction stir welding. It is conceivable.
- the resin-based coating film is peeled from the steel plate, it is difficult to secure the corrosion resistance of the peeled portion.
- This invention makes it a subject to provide the friction stir welding structure which can ensure the corrosion resistance of a peeling part, when a coating film peels from a steel plate.
- the friction stir welded structure is such that the aluminum alloy member is superposed on the steel member to which electrodeposition coating has been applied in advance, and the superposed portion is joined by friction stir welding at the joint portion.
- the aluminum alloy member is provided on an aluminum overlapping portion that constitutes the overlapping portion together with the steel member by being superimposed on the steel member, and the aluminum overlapping portion in the extension direction of the joint portion.
- a friction stir welding structure is provided, which has an aluminum extension projecting outward of the steel member at right angles to each other.
- the aluminum extending portion has an aluminum bulging portion bulging out toward the steel member side, and an edge of the aluminum bulging portion is the steel member. It protrudes from the surface on the opposite side to the said aluminum overlap part.
- the steel member is a steel plate on which a galvanized film is formed.
- the steel member includes steel sides disposed on both sides at a predetermined distance, and a steel connection portion connecting the steel sides disposed on the both sides,
- the steel side portions on both sides and the steel connection portion are formed in a substantially U shape in plan view
- the aluminum alloy member is formed of aluminum sides on both sides spaced apart from each other and aluminum sides on both sides.
- an aluminum connection portion to be connected wherein the aluminum side portions on both sides and the aluminum connection portion are formed in a substantially U shape in plan view, and the aluminum side portions on both sides are overlapped on the steel sides on both sides.
- the friction stir welding structure having a substantially rectangular shape in plan view is formed by the steel member and the aluminum alloy member, and the aluminum side portions on both sides are overlapped on the steel side portions on both sides.
- the overlapping portion is formed on both sides, and the overlapping portion includes a closed cross section formed in a closed cross section, and a pair of flanges protruding outward from the closed cross section, and the flange is A steel flange to be superimposed on the aluminum overlapping portion, and an aluminum flange formed by the aluminum overlapping portion and the aluminum extension portion, at least one of the flange portions of the pair of the flange portions being the joint portion Friction stir welding.
- the friction stir welding structure having a substantially rectangular shape in a plan view is a vehicle sub frame supporting the left and right suspensions for the vehicle.
- the aluminum overlapping portion is provided with the aluminum extending portion, and the aluminum extending portion is extended outward of the steel member.
- aluminum (Al) of the aluminum alloy member has a larger ionization tendency than iron (Fe) of the steel member, that is, it is poorer than Fe. Therefore, by projecting the aluminum extension part to the outside of the steel member, electrons of the aluminum extension part (Al) are supplied to the peeling portion where the coating film of the steel member is peeled, and the peeling portion (Fe) Electron emission can be prevented. As a result, the sacrificial corrosion protection effect can be obtained at the peeling site, and the peeling site can be protected by securing the corrosion resistance of the peeling site.
- the steel member can be friction stir welded to the aluminum alloy member.
- the cost of the masking process which covers the screw part etc. of aluminum alloy members does not generate
- the aluminum expansion portion of the aluminum extension portion is expanded to the steel member side, and the end edge of the aluminum expansion portion is protruded from the steel member. Therefore, the edge of the aluminum bulging portion can be protruded from the peeling portion. As a result, electrons at the edge (Al) of the aluminum bulging portion are efficiently supplied to the peeling portion, and electron emission of the peeling portion (Fe) can be more preferably prevented, so that the sacrificial corrosion protection effect is obtained better.
- the coating film can be applied to the galvanized film by electrodeposition by forming the galvanized film on the steel member.
- the corrosion resistance of the steel member can be enhanced by applying the galvanized film and the coating film to the steel member in two layers.
- the galvanized film can be left at the peeling site.
- zinc (Zn) in the galvanized film has a larger ionization tendency than aluminum (Al) made of an aluminum alloy member, that is, it is more noble than Al. Therefore, the electrons of the galvanized film (Zn) at the peeling portion are supplied to the aluminum extended portion (Al), and the sacrificial extension effect is obtained in the aluminum extended portion (Al).
- electrons of the aluminum extension (Al) are supplied to the peeling site, and electron emission of the peeling site (Fe) can be prevented.
- the sacrificial corrosion protection effect can be obtained at the peeling site, and the peeling site can be protected by securing the corrosion resistance of the peeling site.
- polymerization part was equipped with a pair of flange part, and the flange part was comprised with the steel flange of steel members, and the aluminum flange of aluminum alloy members. Further, at least one of the pair of flanges is friction stir welded. Electrons of the aluminum flange (Al) can be supplied to the peeling site of the steel flange to prevent electron emission of the peeling site (Fe). Thus, the sacrificial corrosion protection effect can be obtained at the peeling portion of the steel flange, and the corrosion resistance of the peeling portion can be secured.
- the friction stir welding structure having a substantially rectangular shape in plan view is used as a vehicle sub-frame.
- the vehicle sub-frame is a member for supporting the left and right suspensions and the like, and it is necessary to ensure sufficient strength and rigidity of the friction stir welding structure. Therefore, the overlapping portion of the friction stir welding structure was formed by the closed cross-sectional portion and the pair of flange portions, and the pair of flange portions was protruded outward from the closed cross-sectional portion. Furthermore, the joint of the flanges (the steel flange and the aluminum flange) protruding from the closed cross section was friction stir welded.
- the strength and rigidity of the overlapping portion can be sufficiently ensured in the closed cross-sectional portion. Thereby, the strength and rigidity of the friction stir welding structure can be sufficiently secured at the closed cross section of the polymerization portion.
- FIG. 4 It is a perspective view showing a vehicle provided with a friction stir welding structure (sub frame) concerning the present invention. It is a perspective view which shows the sub-frame of FIG. It is a disassembled perspective view which shows the state which decomposed
- friction stir welding structure 14 is not limited to a subframe.
- the vehicle 10 is provided on the left and right sides of the vehicle 10 and is extended in the vehicle longitudinal direction, and left and right front side frames (frame members) 11 and 12; , A power source (not shown) supported by the sub-frame 14 and left and right front suspensions (suspensions) 15 (the right front suspension is not shown), and an upper portion of the sub-frame 14 And a steering gear box 19 provided on the vehicle.
- a power source (not shown) supported by the sub-frame 14 and left and right front suspensions (suspensions) 15 (the right front suspension is not shown), and an upper portion of the sub-frame 14
- a steering gear box 19 provided on the vehicle.
- the steering gear box 19 is a cylindrical case that accommodates a steering gear (not shown) and the like.
- a steering wheel is attached to a steering shaft extended from the steering gear box 19. By operating the steering wheel, the traveling direction of the vehicle 10 can be changed.
- the left front suspension 15 is supported by the left side member 23 of the sub frame 14 via the left lower arm 17.
- the right front suspension like the left front suspension 15, is supported by the right side member 26 of the sub-frame 14 via the right lower arm.
- the sub-frame 14 is provided on the left side of the vehicle 10 and extends in the vehicle longitudinal direction, and the right side member provided on the right side of the vehicle 10 and extending in the vehicle longitudinal direction 26, a front cross member (steel connecting portion) 31 connecting front end portions 23a and 26a of left and right side members 23 and 26, and a rear cross member connecting rear end portions 23b and 26b of left and right side members 23 and 26 (The aluminum connecting portion) 32 is formed in a rectangular shape.
- the left side member 23 is formed of a left side steel side 24 formed of a steel material and a left side aluminum side 25 formed of an aluminum alloy material.
- the right side member 26 is formed of a right steel side 27 formed of steel and a right aluminum side 28 formed of an aluminum alloy material.
- the steel side 24 on the left side and the steel side 27 on the right side are arranged at predetermined intervals.
- a steel member 21 is formed by the left side steel side 24 and the right side steel side 27 and the steel front cross member 31 connecting the left and right side steel sides 24 and 27.
- the steel member 21 is a steel plate formed in a substantially U-shape in a plan view by the left and right steel side portions 24 and 27 and the front cross member 31.
- a galvanized film 35 is formed on the surface 21a
- a resin-based coating film 36 is formed on the surface of the galvanized film 35 by electrodeposition coating (cationic electrodeposition coating) (see FIG. See also b)).
- electrodeposition coating cationic electrodeposition coating
- the left side aluminum side 25 and the right side aluminum side 28 are arranged at predetermined intervals.
- Aluminum with aluminum side 25 on the left side and aluminum side 28 on the right side i.e., aluminum sides 25 and 28 on both sides
- An alloy member 22 is formed.
- the aluminum alloy member 22 is a casting formed of the aluminum alloy in substantially U-shape in plan view (more specifically, substantially I-shape in plan view) by the aluminum side portions 25 and 28 on the left and right sides and the rear cross member 32. It is a member.
- the friction stir welding is performed in a state in which the aluminum alloy member 22 is superimposed on the steel member 21, whereby the steel member 21 and the aluminum alloy member 22 form a sub-frame 14 having a substantially rectangular shape in plan view.
- the overlapping portion 38 (the left side overlapping portion) is formed by overlapping the left side aluminum side 25 on the left side steel side 24.
- the overlapping portion 38 includes a closed cross section 41 formed in a closed cross section, and inner and outer flanges (a pair of flanges) 42 and 43 projecting outward from the closed cross section 41. That is, the inner flange portion 42 is friction stir welded at the inner joint portion (joint portion) 55, and the outer flange portion 43 is friction stir welded at the outer joint portion (joint portion) 57, whereby the steel side portion 24 on the left side is
- the overlapping portion 38 is constituted by the aluminum side 25 on the left side.
- the left steel side 24 has a substantially U-shaped steel side main body 45 expanded downward, and an inner steel flange (steel flange) 46 provided on the inner side 45 a of the steel side main body 45. And an outer steel flange (steel flange) 47 provided on the outer side 45 b of the steel side body 45.
- the inner steel flange 46 projects from the inner portion 45 a of the steel side body 45 inward in the vehicle width direction.
- the outer steel flange 47 protrudes from the outer side 45 b of the steel side body 45 outward in the vehicle width direction.
- the aluminum side portion 25 on the left side has an aluminum side main body 51 having a substantially trapezoidal cross section and bulged upward, and an inner aluminum flange (aluminum flange) 52 provided on an inner portion 51 a of the aluminum side main body 51. And an outer aluminum flange (aluminum flange) 53 provided on the outer side portion 51 b of the aluminum side body 51.
- the inner aluminum flange 52 projects from the inner portion 51 a of the aluminum side main body 51 inward in the vehicle width direction.
- the outer aluminum flange 53 protrudes from the outer side portion 51 b of the aluminum side main body 51 outward in the vehicle width direction.
- the inner flange portion 42 is formed by friction stir welding the inner joint portion 55 in a state in which the inner aluminum flange 52 is superimposed on the inner steel flange 46.
- a sealing agent 56 is interposed between the inner steel flange 46 and the inner aluminum flange 52.
- the outer flange portion 43 is formed by friction stir welding the outer joint portion 57 in a state where the outer aluminum flange 53 is superimposed on the outer steel flange 47.
- a seal 56 is interposed between the outer steel flange 47 and the outer aluminum flange 53.
- the seal 56 is interposed between the outer steel flange 47 and the outer aluminum flange 53 before the outer flange portion 43 is friction stir welded.
- the inner steel flange 46 and the inner aluminum flange 52 are joined at the inner joint 55, and the outer steel flange 47 and the outer aluminum flange 53 are joined at the outer joint 57, thereby the steel side body 45 and the aluminum side body 51.
- the steel side body 45 and the aluminum side body 51 are overlapped in the form of a closed cross section so that the steel side body 45 and the aluminum side body 51 form a closed cross section 41.
- the outer steel flange 47 has a galvanized film 35 formed on the surface 47 a (that is, the surface 21 a of the steel member 21 (see FIG. 4 (b))).
- the coating film 36 is formed.
- the outer steel flange 47 is a portion to be overlapped with the aluminum overlapping portion 61 of the outer aluminum flange 53.
- the outer aluminum flange 53 projects from the outer end portion 61 a of the aluminum overlapping portion 61 outward in the vehicle width direction from the aluminum overlapping portion 61 projecting outward in the vehicle width direction from the outer side portion 51 b of the aluminum side body 51. And an aluminum extending portion 62.
- the aluminum overlapping portion 61 is a portion to be overlapped with the outer steel flange 47, and in the state of being overlapped with the outer steel flange 47, friction stir welding is performed at the outer joint portion 57.
- the aluminum extension portion 62 is provided at the outer end portion 61 a of the aluminum overlapping portion 61.
- the aluminum extending portion 62 is extended outward in the vehicle width direction of the outer steel flange 47 so as to be orthogonal to the extending direction of the overlapping portion 38 (direction orthogonal to the drawing). In other words, the aluminum extension portion 62 is stretched outward of the outer steel flange 47 in the vehicle width direction at right angles to the moving direction (direction orthogonal to the sheet of the drawing) of the welding tool 82 (see FIG. 6A). It has been issued.
- the aluminum extending portion 62 has an aluminum bulging portion 63.
- the aluminum bulging portion 63 is bulging toward the surface (surface) 47 a side of the outer steel flange 47 on the opposite side of the aluminum overlapping portion 61. Accordingly, the end edge 63a of the aluminum bulging portion 63 is protruded by a projecting dimension S from the surface 47a on the opposite side. The reason why the edge 63a of the aluminum bulging portion 63 protrudes from the surface 47a on the opposite side will be described in detail later.
- the coating film 36 and the galvanized film 35 are removed (peeling) from the peeling portion 66 of the outer steel flange 47 (specifically, the opposite surface 47a) It is done.
- the aluminum (Al) of the aluminum bulging portion 63 (edge 63 a) has a larger ionization tendency than iron (Fe) at the peeling portion 66, that is, it is more noble than Fe.
- the aluminum extension 62 is extended outward of the outer steel flange 47, whereby electrons of Al are supplied from the edge 63a of the aluminum bulging portion 63 to the peeling portion 66, and the electron emission of the peeling portion 66 is It is blocked.
- the sacrificial anticorrosion effect is obtained at the peeling portion 66, and the corrosion resistance of the peeling portion 66 is secured, whereby the peeling portion 66 is protected.
- the right side steel side 27 is a member symmetrical with the left side steel side 24, and the same as the left side steel side 24 in each component of the right side steel side 27. It attaches a code
- the right side aluminum side 28 is a member symmetrical with the left side aluminum side 25 and, in the following, each component of the right side aluminum side 28 is given the same reference numeral as the left side aluminum side 25 Detailed explanation is omitted.
- the right side overlapping portion 38 formed of the right side steel side 27 and the right side aluminum side 28 is given the same reference numeral as the left side overlapping portion 38 and the detailed description will be omitted.
- the overlapping portion 38 is provided with inner and outer flange portions 42 and 43.
- the outer flange portion 43 is constituted by the outer steel flange 47 and the outer aluminum flange 53, and friction stir welding is performed at the outer joint portion 57.
- the inner flange portion 42 is constituted by the inner steel flange 46 and the inner aluminum flange 52, and friction stir welding is performed at the inner joint portion 55.
- the electrons of Al of the outer aluminum flange 53 specifically, the aluminum bulging portion 63 (edge 63a) are supplied to the peeling site 66 of the inner steel flange 47, and the electron of Fe is prevented from being emitted from the peeling site 66 Can.
- Al electrons of the inner aluminum flange 52 specifically, the aluminum bulging portion 63 (edge 63a) are supplied to the peeling site 66 of the inner steel flange 46, and Fe electrons are emitted from the peeling site 66. You can prevent. Therefore, a sacrificial anticorrosion effect can be obtained at the peeling portions 66 of the inner and outer steel flanges 46 and 47, and the corrosion resistance of the peeling portions 66 can be secured.
- electrodeposition coating can be applied only to the steel member 21 before joining the sub-frame 14 having a substantially rectangular shape in plan view with the steel member 21 and the aluminum alloy member 22. .
- the sub-frame 14 is joined with the steel member 21 and the aluminum alloy member 22, and there is no need to apply electrodeposition coating to the entire sub-frame 14 after joining. This makes it easy to increase the productivity of the subframe 14.
- the friction stir welding structure having a substantially rectangular shape in plan view is used as the vehicle sub frame (sub frame) 14.
- the sub-frame 14 is a member for supporting the left and right suspensions 15 (see FIG. 1) and the like, and it is necessary to secure sufficient strength and rigidity. Therefore, as shown in FIG. 2 and FIG. 4, the left and right overlapping portions (overlapping portions on both sides) 38 of the sub-frame 14 are formed by the closed cross section 41 and the inner and outer flanges 42 and 43. , 43 are projected outward from the closed cross section 41.
- the inner flange portion 42 inner steel flange 46 and inner aluminum flange 52 protruding from the closed cross section 41 was friction stir welded at the inner joint portion 55.
- the outer flange portion 43 the outer steel flange 47 and the outer aluminum flange 53 protruding from the closed cross section 41 was friction stir welded at the outer joint portion 57.
- the strength and rigidity of the overlapping portion 38 are closed.
- the part 41 can sufficiently secure it. Thereby, the strength and rigidity of the sub-frame 14 can be sufficiently secured at the closed cross-sectional portion 41 of the overlapping portion.
- a galvanized film 35 is formed on the surface 21a of the steel member 21, and a coated film 36 is formed on the surface of the galvanized film 35 by electrodeposition coating. Therefore, the galvanized film 35 and the coating film 36 are formed in advance on the surface (surface) 47 a of the outer steel flange 47.
- the outer steel flange 47 on which the galvanized film 35 and the coating film 36 are formed is placed on the backup jig 81.
- the aluminum overlapping portion 61 of the outer aluminum flange 53 is superimposed on the outer steel flange 47 from above.
- the welding tool 82 is pressed from above the overlapped aluminum overlapping portion 61 in a state of being rotated, and the joint pin 83 of the welding tool 82 is made to enter the aluminum overlapping portion 61.
- the aluminum overlapping portion 61 and the outer steel flange 47 are friction stir welded at the outer joint portion 57 by moving the jointing tool 82 along the outer aluminum flange 53.
- the outer steel flange 47 is placed on the backup jig 81. Therefore, during the friction stir welding of the aluminum overlapping portion 61 and the outer steel flange 47, the portion 36a of the coating 36 of the outer steel flange 47 placed on the backup jig 81 is heat generated during the friction stir welding. Peeling is considered.
- the coating 36 of the outer steel flange 47 (specifically, the portion 36a (see FIG. 6 (a)) placed on the backup jig 81) peels off to make the zinc
- the peeled portion 35 a of the plating film 35 is exposed to the outside.
- the exfoliated portion 35a of the galvanized film 35 receives moisture in the air and splashing water from the ground.
- the zinc (Zn) of the galvanized film 35 has a larger ionization tendency than the aluminum (Al) of the aluminum bulging portion 63 (edge 63a), that is, it is more noble than Al. Therefore, electrons of Zn are supplied from the exfoliation site 35a to the edge 63a, and a sacrificial anticorrosion effect is obtained at the edge 63a.
- the peeling portion 66 of the outer steel flange 47 receives moisture in the air and splashing from the ground.
- the aluminum (Al) of the aluminum bulging portion 63 (edge 63 a) has a larger ionization tendency than iron (Fe) of the outer steel flange 47, that is, is more noble than Fe.
- edge 63 a of the aluminum bulging portion 63 was protruded from the peeling portion 66 by a projecting dimension S. Thereby, electrons of Al are efficiently supplied to the peeling portion 66 from the aluminum bulging portion 63 (edge 63a), and the electrons of Fe can be more preferably prevented from being released from the peeling portion 66. The effect is better obtained.
- the steel member 21 can be friction stir welded to the aluminum alloy member 22 after the steel member 21 is previously coated with the coating 36 by electrodeposition coating. Thereby, the cost of the masking process which covers the screw part etc. of aluminum alloy member 22 does not generate
- the friction stir welding structure according to the present invention is not limited to the above-described embodiment, and can be appropriately modified or improved.
- the sub-frame 14 for vehicles is illustrated as a friction stir welding structure to which the present invention is applied in the embodiment, it is not limited to this, and friction stir welding of aluminum alloy members and steel members is also possible. It is also possible to apply the present invention to the structure of
- the shapes and configurations of the aluminum overlapping portion 61, the aluminum extending portion 62, the aluminum bulging portion 63, and the like are not limited to those illustrated, and can be appropriately modified.
- the present invention is suitable for application to an automobile provided with a structure in which an aluminum alloy member is superimposed on a steel member to which electrodeposition coating has been applied, and a superimposed polymerization portion is friction stir welded.
- Zinc Plated film 36: coating film
- 38 overlapping portions on the left and right sides (overlapping portions, overlapping portions on both sides), 41: closed cross section
- 42, 43 inner and outer flange portions (pair of flange portions)
- 46, 47 Inner and outer steel flanges (steel flanges), 47a: opposite surface (face)
- 52, 53 inner and outer aluminum flanges (aluminum flanges)
- 55, 57 inner and outer joints (joints)
- 1 ... aluminum overlapping portion 62 ... aluminum extending portion, 63 ... aluminum bulging portion, 63a ... edge of aluminum bulged portion.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
- Body Structure For Vehicles (AREA)
- Prevention Of Electric Corrosion (AREA)
- Connection Of Plates (AREA)
Abstract
Description
Claims (5)
- 予め電着塗装を施した鋼製部材にアルミニウム合金製部材が重ね合わされ、重ね合わされた重合部が接合部で摩擦攪拌接合された摩擦攪拌接合構造体であって、
前記アルミニウム合金製部材は、
前記鋼製部材に重ね合わされることにより前記鋼製部材とともに前記重合部を構成するアルミニウム重ね部と、
前記アルミニウム重ね部に設けられ、前記接合部の延長方向に対して直交させて前記鋼製部材の外方に張り出されたアルミニウム延出部と、
を有することを特徴とする摩擦攪拌接合構造体。 - 前記アルミニウム延出部は、
前記鋼製部材側へ膨出されたアルミニウム膨出部を有し、
前記アルミニウム膨出部の端縁が前記鋼製部材の前記アルミニウム重ね部と反対側の面より突出している、請求項1記載の摩擦攪拌接合構造体。 - 前記鋼製部材は、
亜鉛めっき膜が形成された鋼板である、請求項1または請求項2記載の摩擦攪拌接合構造体。 - 前記鋼製部材は、
所定間隔をおいて配置された両側の鋼側部と、
前記両側の鋼側部を連結する鋼連結部と、を備え、
前記両側の鋼側部および前記鋼連結部で平面視略U字状に形成され、
前記アルミニウム合金製部材は、
所定間隔をおいて配置された両側のアルミニウム側部と、
前記両側のアルミニウム側部を連結するアルミニウム連結部と、を備え、
前記両側のアルミニウム側部および前記アルミニウム連結部で平面視略U字状に形成され、
前記両側の鋼側部に前記両側のアルミニウム側部が重ね合わされることにより、前記鋼製部材および前記アルミニウム合金製部材で平面視略矩形状の摩擦攪拌接合構造体が形成され、
前記両側の鋼側部に前記両側のアルミニウム側部が重ね合わされることにより前記重合部が両側に形成され、
前記重合部は、
閉断面に形成された閉断面部と、
前記閉断面部から外側に張り出された一対のフランジ部と、を備え、
前記フランジ部は、
前記アルミニウム重ね部に重ね合わされる鋼フランジと、
前記アルミニウム重ね部および前記アルミニウム延出部で形成されるアルミニウムフランジと、を備え、
一対の前記フランジ部のうち、少なくとも一方のフランジ部が前記接合部で摩擦攪拌接合される、請求項1記載の摩擦攪拌接合構造体。 - 前記平面視略矩形状の摩擦攪拌接合構造体は、
車両用の左右のサスペンションを支持する車両用サブフレームである、請求項4記載の摩擦攪拌接合構造体。
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2013294351A AU2013294351B2 (en) | 2012-07-25 | 2013-05-30 | Friction-stir welded structure |
CA2878913A CA2878913C (en) | 2012-07-25 | 2013-05-30 | Friction-stir welded structure |
US14/416,471 US9260133B2 (en) | 2012-07-25 | 2013-05-30 | Friction-stir welded structure |
CN201380039446.9A CN104487319B (zh) | 2012-07-25 | 2013-05-30 | 摩擦搅拌接合构造体 |
GB1501249.5A GB2518332B (en) | 2012-07-25 | 2013-05-30 | Friction-stir welded structure |
BR112015001372-4A BR112015001372B1 (pt) | 2012-07-25 | 2013-05-30 | Estrutura soldada por fricção |
DE112013003668.1T DE112013003668T5 (de) | 2012-07-25 | 2013-05-30 | RührreibgeschweiBte Struktur |
MX2015001085A MX356237B (es) | 2012-07-25 | 2013-05-30 | Estructura de soldadura por fricción. |
JP2014526800A JP5933005B2 (ja) | 2012-07-25 | 2013-05-30 | 摩擦攪拌接合構造体 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012165063 | 2012-07-25 | ||
JP2012-165063 | 2012-07-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014017167A1 true WO2014017167A1 (ja) | 2014-01-30 |
Family
ID=49996985
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2013/064976 WO2014017167A1 (ja) | 2012-07-25 | 2013-05-30 | 摩擦攪拌接合構造体 |
Country Status (10)
Country | Link |
---|---|
US (1) | US9260133B2 (ja) |
JP (1) | JP5933005B2 (ja) |
CN (1) | CN104487319B (ja) |
AU (1) | AU2013294351B2 (ja) |
BR (1) | BR112015001372B1 (ja) |
CA (1) | CA2878913C (ja) |
DE (1) | DE112013003668T5 (ja) |
GB (1) | GB2518332B (ja) |
MX (1) | MX356237B (ja) |
WO (1) | WO2014017167A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101619877B1 (ko) | 2015-07-22 | 2016-05-24 | 서진산업(주) | 엠보싱 보강패널이 적용된 이종소재 서브프레임 |
CN107000524A (zh) * | 2014-12-17 | 2017-08-01 | 大众汽车有限公司 | 钢板结构、带有这样的钢板结构的车辆以及用于制造所述钢板结构的方法 |
US20180009480A1 (en) * | 2016-07-06 | 2018-01-11 | Toyota Jidosha Kabushiki Kaisha | Suspension member |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE112011104032T5 (de) * | 2010-12-06 | 2013-08-29 | Honda Motor Co., Ltd. | Hilfsrahmenstruktur |
JP2014188548A (ja) * | 2013-03-27 | 2014-10-06 | Fuji Heavy Ind Ltd | 部材接合方法および部材接合構造 |
US10086587B2 (en) * | 2015-01-14 | 2018-10-02 | GM Global Technology Operations LLC | Sandwich structures including a polymeric/electrically non-conducting core for weldability |
JP6485259B2 (ja) * | 2015-07-06 | 2019-03-20 | トヨタ自動車株式会社 | 車両用フレームの接合構造 |
DE102015112416A1 (de) * | 2015-07-29 | 2017-02-02 | Universität Stuttgart | Verfahren zum Rührreibverschweißen sowie rührreibverschweißtes Werkstück |
DE102015217460A1 (de) * | 2015-09-11 | 2017-03-16 | Volkswagen Aktiengesellschaft | Verfahren zum Fügen eines Stahl aufweisenden Bauteils mit einem Aluminium aufweisenden Bauteil |
JP6505618B2 (ja) * | 2016-02-05 | 2019-04-24 | 株式会社東芝 | 摩擦攪拌接合方法および接合体 |
US10590979B2 (en) | 2017-01-24 | 2020-03-17 | Ford Global Technologies, Llc | Corrosion protection for mechanical joints |
FR3141359A1 (fr) * | 2022-10-28 | 2024-05-03 | Safran Nacelles | Procédé de soudage par friction malaxage et ensemble de soudage associé |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009178750A (ja) * | 2008-01-31 | 2009-08-13 | Sumitomo Light Metal Ind Ltd | 車体部材のヘミング接合方法および車体部材の接合構造 |
JP2012121028A (ja) * | 2010-12-06 | 2012-06-28 | Honda Motor Co Ltd | 異材接合構造体 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU733140B2 (en) * | 1998-09-29 | 2001-05-10 | Hitachi Limited | A friction stir welding method |
WO2005095182A1 (ja) * | 2004-03-31 | 2005-10-13 | Honda Motor Co., Ltd. | 車両用サブフレーム及びブッシュ取付構造 |
JP5044128B2 (ja) | 2006-03-22 | 2012-10-10 | 本田技研工業株式会社 | アルミ合金と鋼板との摩擦攪拌接合方法および摩擦攪拌接合部材 |
JP2009113077A (ja) * | 2007-11-06 | 2009-05-28 | Mazda Motor Corp | 摩擦点接合方法 |
US20100089977A1 (en) * | 2008-10-14 | 2010-04-15 | Gm Global Technology Operations, Inc. | Friction stir welding of dissimilar metals |
DE112011104032T5 (de) * | 2010-12-06 | 2013-08-29 | Honda Motor Co., Ltd. | Hilfsrahmenstruktur |
-
2013
- 2013-05-30 DE DE112013003668.1T patent/DE112013003668T5/de not_active Ceased
- 2013-05-30 CN CN201380039446.9A patent/CN104487319B/zh active Active
- 2013-05-30 WO PCT/JP2013/064976 patent/WO2014017167A1/ja active Application Filing
- 2013-05-30 BR BR112015001372-4A patent/BR112015001372B1/pt active IP Right Grant
- 2013-05-30 GB GB1501249.5A patent/GB2518332B/en not_active Expired - Fee Related
- 2013-05-30 MX MX2015001085A patent/MX356237B/es active IP Right Grant
- 2013-05-30 AU AU2013294351A patent/AU2013294351B2/en not_active Ceased
- 2013-05-30 US US14/416,471 patent/US9260133B2/en active Active
- 2013-05-30 CA CA2878913A patent/CA2878913C/en active Active
- 2013-05-30 JP JP2014526800A patent/JP5933005B2/ja not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009178750A (ja) * | 2008-01-31 | 2009-08-13 | Sumitomo Light Metal Ind Ltd | 車体部材のヘミング接合方法および車体部材の接合構造 |
JP2012121028A (ja) * | 2010-12-06 | 2012-06-28 | Honda Motor Co Ltd | 異材接合構造体 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107000524A (zh) * | 2014-12-17 | 2017-08-01 | 大众汽车有限公司 | 钢板结构、带有这样的钢板结构的车辆以及用于制造所述钢板结构的方法 |
KR101619877B1 (ko) | 2015-07-22 | 2016-05-24 | 서진산업(주) | 엠보싱 보강패널이 적용된 이종소재 서브프레임 |
US20180009480A1 (en) * | 2016-07-06 | 2018-01-11 | Toyota Jidosha Kabushiki Kaisha | Suspension member |
US10676132B2 (en) * | 2016-07-06 | 2020-06-09 | Toyota Jidosha Kabushiki Kaisha | Suspension member |
Also Published As
Publication number | Publication date |
---|---|
DE112013003668T5 (de) | 2015-04-30 |
CA2878913A1 (en) | 2014-01-30 |
GB2518332B (en) | 2019-01-02 |
BR112015001372A2 (pt) | 2017-07-04 |
GB201501249D0 (en) | 2015-03-11 |
US9260133B2 (en) | 2016-02-16 |
AU2013294351A1 (en) | 2015-02-05 |
MX2015001085A (es) | 2016-02-05 |
GB2518332A (en) | 2015-03-18 |
US20150175207A1 (en) | 2015-06-25 |
JPWO2014017167A1 (ja) | 2016-07-07 |
BR112015001372B1 (pt) | 2021-10-26 |
CN104487319B (zh) | 2016-11-16 |
CN104487319A (zh) | 2015-04-01 |
JP5933005B2 (ja) | 2016-06-08 |
CA2878913C (en) | 2016-11-22 |
MX356237B (es) | 2018-05-18 |
AU2013294351B2 (en) | 2016-09-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2014017167A1 (ja) | 摩擦攪拌接合構造体 | |
WO2015034023A1 (ja) | 車体前部構造及び車体の組付け方法 | |
WO2020003900A1 (ja) | 接合構造体及びその製造方法 | |
JP2014168804A (ja) | 異材接合構造体 | |
JP6368313B2 (ja) | 自動車部品のレーザー金属蒸着溶接 | |
JP2009190050A (ja) | 車体の接合方法 | |
JP4961531B2 (ja) | 異種金属の接合方法及び接合構造 | |
JP2015077872A (ja) | 車体部材の接合構造及び車体構造 | |
JP2011073569A (ja) | 車両の上部車体構造 | |
JP2008215367A (ja) | 車両の車体板材の接合構造 | |
JP5196133B2 (ja) | 異種金属板材の接合方法 | |
JP2010112425A (ja) | 車体部品の締結構造 | |
JP5227388B2 (ja) | 異材接合構造体 | |
JP2009000728A (ja) | 異種金属の接合方法及び接合構造 | |
JP5293981B1 (ja) | 鋼材の被覆方法 | |
KR101380659B1 (ko) | 이너 플레이트와 커버 플레이트의 용접방법 및 이를 포함하는 선박의 러더 제작방법 | |
JP2012071631A (ja) | 自動車の骨格部材を構成するパネル成形部材構造 | |
JP2509349Y2 (ja) | 車体パネルの接合部構造 | |
JP3898393B2 (ja) | 海洋鋼構造物の干満帯の防食方法 | |
JP2005186876A (ja) | サスペンションの取付構造 | |
JP2013134513A (ja) | 車両用操作ペダル | |
JP2005349462A (ja) | パネル接合構造およびパネル接合方法 | |
KR100553025B1 (ko) | 차량용 연료탱크와 서브 프레임의 결합구조 및 그 결합방법 | |
JPH11336110A (ja) | 既設防食鋼材の補修用部材および既設防食鋼材の補修方法 | |
JPH07100677A (ja) | 塗装パネル部材の溶接方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 13822632 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2014526800 Country of ref document: JP Kind code of ref document: A |
|
ENP | Entry into the national phase |
Ref document number: 2878913 Country of ref document: CA |
|
WWE | Wipo information: entry into national phase |
Ref document number: 14416471 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: IDP00201500381 Country of ref document: ID Ref document number: MX/A/2015/001085 Country of ref document: MX |
|
ENP | Entry into the national phase |
Ref document number: 1501249 Country of ref document: GB Kind code of ref document: A Free format text: PCT FILING DATE = 20130530 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1501249.5 Country of ref document: GB Ref document number: 112013003668 Country of ref document: DE Ref document number: 1120130036681 Country of ref document: DE |
|
ENP | Entry into the national phase |
Ref document number: 2013294351 Country of ref document: AU Date of ref document: 20130530 Kind code of ref document: A |
|
REG | Reference to national code |
Ref country code: BR Ref legal event code: B01A Ref document number: 112015001372 Country of ref document: BR |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 13822632 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 112015001372 Country of ref document: BR Kind code of ref document: A2 Effective date: 20150122 |