WO2001068435A1 - Ebauche personnalisee et son procede de fabrication - Google Patents
Ebauche personnalisee et son procede de fabrication Download PDFInfo
- Publication number
- WO2001068435A1 WO2001068435A1 PCT/JP2001/001229 JP0101229W WO0168435A1 WO 2001068435 A1 WO2001068435 A1 WO 2001068435A1 JP 0101229 W JP0101229 W JP 0101229W WO 0168435 A1 WO0168435 A1 WO 0168435A1
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- WIPO (PCT)
- Prior art keywords
- blank
- thick
- thin
- article
- tailored
- Prior art date
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Classifications
-
- 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
- B23K11/06—Resistance welding; Severing by resistance heating using roller electrodes
- B23K11/061—Resistance welding; Severing by resistance heating using roller electrodes for welding rectilinear seams
- B23K11/062—Resistance welding; Severing by resistance heating using roller electrodes for welding rectilinear seams for welding longitudinal seams of tubes
- B23K11/063—Lap 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
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/06—Resistance welding; Severing by resistance heating using roller electrodes
-
- 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
- B23K11/06—Resistance welding; Severing by resistance heating using roller electrodes
- B23K11/061—Resistance welding; Severing by resistance heating using roller electrodes for welding rectilinear seams
-
- 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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
- B23K26/24—Seam 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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
- B23K26/24—Seam welding
- B23K26/244—Overlap seam 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
- B23K33/00—Specially-profiled edge portions of workpieces for making soldering or welding connections; Filling the seams formed thereby
-
- 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
- B23K33/00—Specially-profiled edge portions of workpieces for making soldering or welding connections; Filling the seams formed thereby
- B23K33/004—Filling of continuous seams
- B23K33/008—Filling of continuous seams for automotive applications
-
- 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
- B62D25/08—Front or rear portions
-
- 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
- B62D25/08—Front or rear portions
- B62D25/14—Dashboards as superstructure sub-units
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D27/00—Connections between superstructure or understructure sub-units
- B62D27/02—Connections between superstructure or understructure sub-units rigid
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49888—Subsequently coating
Definitions
- Tailored blank articles and method of manufacturing the same are Tailored blank articles and method of manufacturing the same
- the present invention relates to a tailored blank article manufactured from a tailored blank obtained by welding a plurality of blanks, and a method for manufacturing the same.
- the dashboard panel of the vehicle separates the engine room, which is exposed to the outside air, from the interior of the vehicle, which is cut off from the outside air, and is a partitioning product for separating the inside and outside.
- a conventional dashboard panel was one in which the lower panel made of a thick plate and the upper panel made of a thin plate were joined by spot welding, as shown in Japanese Utility Model Laid-Open No. 59-1772678. .
- Such a dashboard panel is manufactured by pressing a thick blank and a thin blank into a predetermined shape to produce a lower panel and an upper panel, and then joining these panels by spot welding. It was manufactured by waterproofing and painting the whole.
- spot welding is performed after a plurality of blanks are pressed to produce a plurality of panels having a predetermined shape. Is required for each blank, which raises the problem of high costs.
- a special waterproofing process is required to prevent the occurrence of ⁇ due to the intrusion of water droplets, which improves productivity. There is also a problem that it cannot be done.
- An object of the present invention is to provide a tailor that can reduce the number of dies for press working as compared with the conventional one, and can eliminate the need for special waterproof treatment to prevent the occurrence of ⁇ .
- the tailored blank article according to the present invention is manufactured using at least one part of two blanks in which the overlapped ends are joined by mash seam welding and pressed, as at least a part of the material.
- the blank portion is a partition portion that separates the inside and the outside.
- the two blanks are joined together by matsushi seam welding at the overlapped ends, so the press working to obtain a predetermined shape is performed after joining the blanks by matsushi seam welding. For this reason, it is not necessary to prepare a mold for press working for each blank. Even if the part consisting of two blanks separates the inside and outside, the blanks are joined together without gaps by mash seam welding, so that special waterproofing treatment to prevent the occurrence of ⁇ is not required.
- the joining strength can be greater than spot welding, and the overlap margin between the ends of the blank can be smaller than spot welding. Therefore, it is possible to achieve a reduction in weight and an improvement in material yield.
- the two blanks are a thick blank and a thin blank, and the matsushi seam welding is exposed outside the thick blank. If the edge of the surface and the edge of the inner surface of the sheet blank are overlapped with each other, the sheet blank shall be placed in a state where the inner surface of the sheet blank is flush or nearly flush with the inner surface of the thick sheet blank. You may bend until it becomes.
- the tailored blank article according to the present invention can be used as a mounting surface for mounting other components.
- the two blanks which have been pressed by joining the butted ends together by laser welding, can be used. It is manufactured by using at least a part of the material, and the part formed by the two blanks is a partition part for partitioning the inside and the outside.
- the butted ends of the two blanks are joined by laser welding, so press working to obtain a predetermined shape is performed after joining the blanks by laser welding. For this reason, even with this tailored blank product, it is not necessary to prepare a press die for each blank. Even if the part consisting of two blanks is a part that separates the inside and the outside, the blanks are joined together by laser welding without any gaps. No special waterproofing is required. Also, in this tailored blank product, the blanks are joined by laser welding, so the joining strength can be greater than spot welding, and unlike the spot welding, there is no need to overlap the ends of the blanks Therefore, it is possible to further reduce the weight and improve the yield of the material.
- the two blanks are a thick blank and a thin blank, and the outer surfaces exposed to the outside of the thick blank and the thin blank are flush or almost flush.
- the inner surface of this thin plank is flush or nearly flush with the inner surface of the thick blank. You can bend it up.
- the two blanks are a thick blank and a thin blank having different thicknesses, the inner surfaces of these blanks are flush or almost flush, so that these blanks are flushed.
- the welded part is straddled on at least one of the outer surface and the inner surface of the two blanks
- a part corresponding to the welded part in this joint part is separated from the welded part.
- the method for producing a tailored blank article according to the present invention is a method for producing a tailored blank article in which at least a portion consisting of a thick blank and a thin blank is a partition part for partitioning between inside and outside.
- the end of the blank and the end of the thin blank are joined by mash seam welding with the inner surface of the thin blank overlapped on the outer surface exposed to the outside of the thick blank, and then these blanks are pressed. And bending the thin sheet blank until the inner surface of the thin sheet blank is flush with or substantially flush with the inner face of the thick sheet blank. At least one of an outer surface and an inner surface of the blank and the thin plate blank is coated.
- the blanks are joined together by mash seam welding and then pressed into a predetermined shape, so there is no need to prepare a mold for press working for each blank. .
- the blanks are joined together without gaps by mass seam welding, a special waterproof No action is required.
- the blanks are joined together by matsushi seam welding with greater strength than spot welding.Matsushi seam welding can reduce the overlap margin between the ends of the blanks compared to spot welding, thus reducing the weight. And an improvement in material yield.
- the inner surface of the thin blank is thickened.
- These inner surfaces can be used as mounting surfaces for mounting other parts, since the inner surfaces of the plate blanks are bent or leveled until they are flush or almost flush with the inner surface.
- the method for producing a tailored blank article according to the present invention is a method for producing a tailored blank article in which at least a portion composed of a thick blank and a thin blank is a partition part for partitioning between inside and outside.
- the ends of the thick blanks and the ends of the thin blanks are joined by laser welding with the outer surfaces of these blanks flush or nearly flush, and then the blanks are pressed. And bending the thin sheet blank until the inner surface of the thin sheet blank is flush with or substantially flush with the inner face of the thick sheet blank. At least one of an outer surface and an inner surface of the sheet blank and the thin sheet blank is coated.
- the blanks are joined together by laser welding and then pressed into a predetermined shape, so a mold for press working is prepared for each blank as in the case of matsushi seam welding There is no need to do this. Also, since the blanks are joined without gaps by laser welding, there is no need to perform special waterproofing treatment to prevent the occurrence of ⁇ . Furthermore, the blanks are joined together by laser welding with greater strength than spot welding, and laser welding differs from spot welding in that the edges of the blanks do not need to be overlapped with each other. Weight reduction and improvement in material yield can be achieved.
- the inner surface of the thin blank can be formed. Since the bending is performed until the inner surface of the thick plate blank is flush or almost flush with the inner surface, these inner surfaces can be used as mounting surfaces for mounting other parts, as in the case of matsushi seam welding. .
- a connecting part to be connected across a weld portion is provided on at least one of the outer surface and the inner surface of the thick blank and the thin blank. Before bending, but before painting, the joint part is placed on the surface of the thick blank and thin sheet blank to which the joint part is joined. Separate them from the weld and join them together before painting.
- the thin sheet blank is used until the inner surface of the thin sheet blank is substantially flush with the inner surface of the thick sheet blank. Bending may be performed as one of the work processes of this press working when pressing the joined thick blank and thin blank, and press working before or after the press working It may be performed as a separate work process.
- the thin sheet blank is bent until the inner surface of the thin sheet blank is flush with or substantially flush with the inner face of the thick sheet blank.
- the inner surface of the thick blank is flat, replace the thin blank with the inner surface of the thin blank. This is to make the inner surface of the thin sheet blank flat by bending and bending to a position that matches or almost matches the linear extension of the inner surface of the rank, and that the inner surface of the thick sheet blank becomes a curved surface.
- the blank which can be used in the above-mentioned tailored blank article and the method for producing the same according to the present invention is made of a metal plate, particularly a cold rolled steel plate or a hot rolled steel plate.
- the present invention has a thickness of 0.7 mn! It can be effectively applied to steel plates of up to 3.2 mm.
- the steel plate may be one that has not been subjected to surface treatment such as plating, or one that has been subjected to surface treatment such as zinc plating.
- steel sheets of various strengths from mild steel sheets to 69 OMPA class high strength steel sheets can be used.
- the coating may be an electrodeposition coating or a spray coating.
- INDUSTRIAL APPLICABILITY The present invention can be applied to an article having at least a part for partitioning between inside and outside.
- a dashboard panel in the case of a vehicle body.
- Other examples of a vehicle body include an article including a front wheel house and a front side frame, an article including a rear wheel house and a rear side panel inner, and the like.
- the tailored blank article according to the present invention is a dashboard panel.
- the material on the lower side of the dashboard panel is a thick blank
- the material on the upper side is a thin blank
- the inner blank forming the cabin space of the thin blank is thick. It is bent until it is flush or almost flush with the inner surface of the plate blank.
- the lower material is a thick blank, so the strength of this part can be made large enough to effectively receive the load from the front side frame during a vehicle collision, Further, since the upper material is a thin sheet blank, the weight of the entire dashboard panel can be reduced. Furthermore, according to the dashboard panel, the outer surfaces of the thick blank and the thin blank are formed in an engine room in a continuous state or a substantially continuous state by mash seam welding or laser welding, and the thin blank is Since the inner surface forming the interior space of the vehicle is bent until it is flush or nearly flush with the inner surface of the thick blank, the outer and inner shapes of the dashboard panel around the welded portion are changed. Unlike the reverse case, water droplets can easily accumulate on the outer surface on the engine room side, and dents and steps can be eliminated. Thereby, generation of mackerel on this outer surface exposed to the outside can be prevented.
- the lower material of the dashboard panel is a thick blank
- the upper material is a thin blank.
- the tailored blank article and the manufacturing method thereof according to the present invention are applied to a dashboard panel, at least one of the outer surface and the inner surface of the two blanks straddles a mash seam welded portion and a laser welded portion.
- An example of the connecting component connected by the above is a front side frame, another example is an insulator panel for sound insulation, and further a reinforcing panel.
- the present invention is also applicable to articles other than the vehicle body of a vehicle, for example, an outer panel of a small boat, an inner panel of a washing tub, an outer panel of a television, an outer panel of an oil stove, an outer frame of a personal computer, and the like.
- FIG. 1 shows a part of a vehicle body manufactured using a dashboard lower panel, which is a tailored blank product according to an embodiment of the present invention, in a vehicle interior.
- FIG. 2 is a perspective view as viewed from above, and is a view showing only a dashboard lower panel by a solid line.
- FIG. 2 is a plan view showing a thick blank and a thin blank which are materials for manufacturing a dashboard lower panel.
- FIG. 3 is a plan view showing a state in which ends of a thick blank and a thin blank are overlapped for mash seam welding.
- FIG. 4 is a vertical cross-sectional view of a thick plate blank and a thin plate blank during matsushi seam welding.
- FIG. 5 is a vertical cross-sectional view of a thick plate blank and a thin plate blank after matsushi seam welding.
- FIG. 6 is a perspective view of a dashboard lower panel manufactured by transfer pressing a thick blank and a thin blank joined by matsushi seam welding, as viewed from the vehicle interior.
- FIG. 7 is a longitudinal sectional view showing a state where the thin blank is bent to make the inner surface of the thick blank and the inner surface of the thin blank be flush or almost flush.
- FIG. 8 is a longitudinal sectional view of a thick blank and a thin blank showing a state after bending.
- FIG. 9 is a perspective view of the dash board door panel to which the front side frame is connected as viewed from the engine room side.
- FIG. 10 is a perspective view of the dashboard, drawer, and panel to which the insulator panel for sound insulation is connected, as viewed from the vehicle interior.
- FIG. 11 is a longitudinal sectional view of a dash-board lower panel with a front side frame attached to the outer surface and an insulator panel for sound insulation attached to the inner surface, respectively, at a mass seam welded portion.
- FIG. 12 is a view similar to FIG. 11 showing a modified example in which a portion corresponding to a matsushi seam welded portion of the front side frame has a shape different from that of FIG.
- FIG. 13 is a perspective view of the dashboard lower panel to which the reinforcing panel is connected, as viewed from the vehicle interior.
- FIG. 14 is a vertical view showing a case in which a thick blank and a thin blank are joined by laser welding in an embodiment in which a dashboard lower panel is manufactured from a thick blank and a thin blank joined by laser welding. It is sectional drawing.
- FIG. 15 is a longitudinal sectional view of a thick blank and a thin blank after laser welding.
- FIG. 16 is a longitudinal sectional view showing a state where a thin sheet blank is bent.
- Fig. 17 shows the vertical cross sections of thick blank and thin blank after bending.
- FIG. FIG. 18 is a longitudinal sectional view of a laser welded portion of a dashboard lower panel in which a front side frame is mounted on an outer surface and an insulator panel for sound insulation is mounted on an inner surface.
- FIG. 19 is a view similar to FIG.
- FIG. 18 shows a modified example in which a portion corresponding to the laser welded portion in the front side frame has a shape different from that of FIG.
- Fig. 20 shows an embodiment in which the outer surfaces of the thick plate blank and the thin plate blank, which are in the same state or almost the same state, are different from the case of Fig.
- FIG. 3 is a vertical cross-sectional view of a thick plate blank and a thin plate blank.
- FIG. 21 is a longitudinal sectional view of a thick blank and a thin blank after laser welding according to FIG. BEST MODE FOR CARRYING OUT THE INVENTION
- Fig. 1 shows a part of the vehicle body. This part of the vehicle body is composed of a dashboard lower panel A, a dashboard upper panel B, a front floor panel panel C, and a front door lower panel. It is formed by joining panel D.
- 2 to 13 show an embodiment in which a dashboard lower panel is manufactured by matsushi seam welding. As shown in Fig. 2, the material of the dashboard lower panel is a thick blank 11 and a thin blank 12, both of which are made of steel.
- the mash seam welding device 13 for joining the ends 11 A and 12 A of the blanks 11 and 12 is composed of upper and lower electrode rollers 13 A and 13 B that press and crush the ends 11 and 12 A. Having. The electrode rollers 13A and 13B roll along the ends 11A and 12A while being energized between the electrode rollers 13A and 13B. As a result, as shown in FIG. 5, the end 11 A and the end 12 A are crushed while a nugget 14 is formed between the ends 11 A and 12 A. At the end portions 11 A and 12 A, a mash seam welded portion 15 having a thickness smaller than the total thickness of the thick blank 11 and the thin blank 12 is formed. By this matsushi seam welding, the outer surface 11B of the thick blank 11 and the outer surface 12B of the thin blank 12 serving as the engine room side surface of the dashboard lower panel become continuous or almost continuous.
- the edge 12D of the thick blank 11 on the outer surface 12B of the thin blank 12 may be slightly stepped with respect to the outer surface 11B of the thick blank 11. It is good, but if there is a large step, it will be difficult to form a coating film on the surface of the edge portion 12D when performing the electrodeposition coating described later. As a result, the edge portion 1 ⁇ occurs from 2D. For this reason, in order to prevent the edge portion 12D from becoming a large step, the magnitude of the pressing force applied to the blanks 11 and 12 by the electrode rollers 13A and 13B and other conditions during the mash seam welding are adjusted. Set. After that, the thick blank 11 and the thin blank 12 are sent to the pressing step, and transfer press processing is performed.
- FIG. 6 is a perspective view of the dashboard lower panel 16 as viewed from the vehicle interior.
- the thin blank 12 shown in Fig. 7 is bent. This bending is performed using the upper die 1 1 and the lower die 18.
- the upper surface 18A of the lower die 18 is a smooth surface, but the lower surface 17A of the upper die 17 has: At a position slightly deviated from the mash seam welded part 15 to the thin sheet blank 12 side, a protruding part 19 projecting downward is provided. Therefore, the thin sheet blank 12 is bent at the projection 19.
- the inner surface 11C of the thick blank 11 and the inner surface 12C of the thin blank 12 are in a flush state or almost flush state.
- the inner surface 11C of the thick blank 11 is a flat surface.
- the thin sheet blank 12 is bent to a position almost coincident, and the inner surface 12 C of the thin sheet blank 12 is also flat.
- the thin blank 1 2 has the inner surface 12 C of the thin blank 12 as the inner surface 11 C of the thick blank 11.
- the curved surface has continuity.
- the bulging part 15 A of the matsushi seam welded part 15 bulging from the inner surface 11 C is pressurized. A may be extinguished.
- FIG. 9 which shows the dashboard lower panel 16 as viewed from the engine room side, a dashboard drawer panel comprising an outer surface 1 1B of a thick blank 11 and an outer surface 1 2B of a thin blank 12 The outer surface of 16 o
- the front side frame 20, which is a connecting component connected across the welded portion 15, is joined by spot welding.
- the inner surface 1 6 B of the dashboard drawer 1 panel 16 consisting of the inner surface 11 C of the thick blank 11 and the inner surface 12 C of the thin blank 12 that are in a flush or almost flush condition
- the insulator panel 21 for sound insulation which is a connecting component connected across the matsushi seam welded portion 15, is joined by spot welding.
- the part 2 OA corresponding to the Matsushi seam seam welded part 15 in the front side frame 20 is slightly curved away from the dashboard lower panel 16.
- This part 2 OA is separated from the mash seam weld 15.
- the portion 21 A corresponding to the mash seam welded portion 15 of the insulator panel 21 is slightly curved away from the dashboard lower panel 16, so that this portion 21 A is also a matte seam welded portion 1.
- the front side frame 20 and the insulator panel 21 are attached to the dashboard lower panel 16 and, as shown in Fig. 1, the dashboard lower panel that forms the vehicle body After the dash board upper panel, the front floor panel, and the front pillar inner lower panel are joined together to complete the car body, the car body is immersed in the bathtub of the electrodeposition coating equipment to perform electrodeposition coating.
- the dashboard lower panel 16 serving as a partitioning article for separating the vehicle interior and the engine room, which are the inside and the outside of the vehicle, includes the thick blank 11 and the end 1 of the thin blank 1 2.
- 1A and 1A are welded together by mash seam welding, and then press work is performed on the thick blank 1 1 and the thin blank 1 2.
- matsushi seam welding joins the blanks without gaps, there is no need to perform special water-proofing work on the manufactured dashboard lower panel 16 as a post-process to prevent the occurrence of ⁇ . The number can be reduced and productivity can be improved.
- matsushi seam welding has a higher joining strength than spot welding
- the thick blank 11 and the thin blank 12 can be joined with high strength.
- the overlap between the ends 11A and 12A of the thick blank 11 and thin blank 12 can be made smaller than in spot welding, so that the dashboard drawer panel 16 Can be reduced in weight, and the yield of materials can be improved.
- the outer surface 16A forming the engine room of the dashboard lower panel 16 according to the present embodiment and the inner surface 16B forming the interior space of the vehicle are covered with the coating film 22 formed by electrodeposition coating.
- the durability of the outer surface 16A and the inner surface 16B can be improved.
- the inner surface 12 C of the thin sheet blank 1 2 is formed by bending the thin sheet blank 12 at the time of pressing the joined thick sheet blank 11 and the thin sheet blank 12. Since the inner surface 11 C of the blank 11 was flush or nearly flush with the inner surface 11 C of the blank 11, the matsush seam welding was performed on the inner surface 16 B of the dashboard front panel 16 composed of these inner surfaces 11 C and 12 C.
- the insulator panel 21 for sound insulation straddling the part 15 can be attached as prescribed. Also, for a plurality of parts that are separately installed on the inner surface 11C of the thick blank 11 and the inner surface 12C of the thin blank 12, these inner surfaces 11C and 12C are flush with each other. Or, since they are almost flush, it becomes possible to mount these parts with one of the inner surfaces as the reference surface.
- the coating film 22 by electrodeposition coating is surely applied to the surface of the matsushi seam weld 15. Can be formed, and generation of ⁇ in the welded portion 15 can be prevented.
- the lower material of the dashboard lower panel 16 is the thick blank 11
- the load from the front side frame 20 at the time of a vehicle collision is removed from the thick blank 11. It can be effectively received in some parts.
- the upper material of the dashboard lower panel 16 is the thin plate blank 12
- the overall weight of the dashboard lower panel 16 can be reduced.
- performing the bending process of FIG. 7 on the thin sheet blank 12 requires, as described in FIG. 8, that the inner surface 12 C of the sheet blank 12 on the vehicle interior side is formed. The recess formed between the thick blank 11 and the thin blank 12 shown in Fig. 11 so that the inner surface 11 C of the thick blank 11 is flush or almost flush with the inner surface 11 C.
- the lower portion 23 is formed on the inner surface 16B of the dash board lower panel 16 on the vehicle interior side, and is not formed on the outer surface 16A of the dashboard lower panel 16 on the engine room side exposed to the outside air. For this reason, unlike the case where the depression 23 is formed on the outer surface 16 A of the dashboard lower panel 16, water drops accumulate in the depression 23 of the outer surface 16 A exposed to the outside. Therefore, it is possible to eliminate the problem that the dashboard lower panel 16 becomes ⁇ after a long period of time.
- FIG. 12 shows a modification of the shape of a portion corresponding to the matsushi seam welded portion 15 in the front side frame 20.
- the portion 20 B corresponding to the matsushi seam welded portion 15 is different from the portion 2 OA in FIG. 11 in which the shape gradually departs from the dashboard lower panel 16. The shape is sharply separated from panel 16 force.
- the shape of the front side frame 20 that corresponds to the matsushi seam welded portion 15 is determined by the ease of forming and the dashboard lower panel. It can be freely determined in consideration of the coupling strength to 16 and so on.
- the connecting part that is connected to the dashboard lower panel 16 across the mash shim welded part 15 is not limited to the front side frame 20 and the insulator panel 21 and may be any part.
- a reinforcement panel 24 is attached to the inner surface 16B of the dashboard opening panel 16 by spot welding.
- the part 24 A corresponding to the matsushi seam weld part 15 of the panel 24 is also separated from the matsushi seam weld part 15, and the electrodeposition coating liquid is allowed to enter between the parts.
- FIG. 14 An embodiment in the case of manufacturing a dashboard lower panel by using laser welding will be described with reference to FIGS. 14 to 21.
- FIG. 14 An embodiment in the case of manufacturing a dashboard lower panel by using laser welding will be described with reference to FIGS. 14 to 21.
- the thick sheet blank 31 and the thin sheet blank 32 are formed such that the outer surfaces 31B and 32B are flush or almost flush with each other, and the ends 31A, 3 2 A The two blanks 31 and 32 are clamped in this state.
- the ends 31A and 32I are welded and joined together by a laser beam 33C from a laser welding device 33 having an oscillator 33I and a condenser lens 33I.
- Fig. 15 shows the plank plank 3 1 and the thin sheet blank 3 2 after laser welding.
- the joints at the ends 3 1 ⁇ and 3 2 ⁇ are laser welded sections 3 5 and the thick sheet blank 3
- the outer surface 3 1 B of 1 and the outer surface 3 2 B of the thin sheet blank 32 are in a continuous state or a substantially continuous state.
- the lower press panel 36 is manufactured from the blanks 31 and 32 by subjecting the thick blank 31 and the thin blank 32 to transfer press processing.
- the thin blank 32 is bent by the upper die 17 and the lower die 18 in FIG.
- the inner surface 32C of the thin blank 32 is brought into a flush state or almost flush state with the inner surface 31C of the thick blank 31.
- a front side frame 20 is attached to the outer surface 36A of the dashboard lower panel 36, and an insulator panel 21 for sound insulation is attached to the inner surface 36B. Attach by welding.
- the portions 2OA and 21A corresponding to the respective laser welds 35 of the front side frame 20 and the insulator panel 21 are separated from the welds 35.
- the vehicle body consisting of the dashboard lower panel 36 with the front side frame 20 etc. attached, the dashboard upper panel, the front floor panel, the front biller inner lower panel, etc. is electrodeposited, and the laser weld
- the outer surface 36 A and the inner surface 36 B of the dashboard lower panel 36 including 35 are coated with the coating film 22.
- This effect includes the depression 4 between the thick blank 31 and the thin blank 32 shown in FIG. 3 is formed on the inner surface 36 B of the dashboard lower panel 36 on the vehicle cabin interior side and not formed on the outer surface 36 A of the engine room side, so the outer surface 36 A exposed to the outside has ⁇ . This can be prevented over a long period of time.
- the end portions 31 A and 32 A of the thick blank 31 and the thin blank 32 do not have to overlap each other, which further reduces the weight of the dashboard front panel. And the material yield can be improved.
- the portion 20B corresponding to the laser welded portion 35 on the front side frame 20 is shaped so as to be sharply separated from the dashboard drawer panel 36. You may.
- connecting part to be connected to the dashboard lower panel 36 across the laser welded portion 35 may be a reinforcing panel as in the case of FIG.
- the outer surfaces 3 1 B and 3 2 B are placed on a flat work table, and the thick blank 3 1 and the thin blank
- the upper portion 35 A of the laser welded portion 35 when welding is performed in this way is sagged.
- the tailored blank product and the method for manufacturing the same according to the present invention can be used when manufacturing an article for partitioning the inside and outside with a tailored blank, such as a dashboard panel that separates an engine room and a vehicle interior of a vehicle body. Useful.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Plasma & Fusion (AREA)
- Body Structure For Vehicles (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Laser Beam Processing (AREA)
- Laminated Bodies (AREA)
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE60143831T DE60143831D1 (de) | 2000-03-13 | 2001-02-21 | Massgeschneidertes rohteil und verfahren zur herstellung des teiles |
EP01906148A EP1186516B1 (en) | 2000-03-13 | 2001-02-21 | Tailored blank product and method of manufacturing the product |
BRPI0105427-9A BR0105427B1 (pt) | 2000-03-13 | 2001-02-21 | artigo de matriz configurada e método para a fabricação do mesmo. |
CA002389946A CA2389946C (en) | 2000-03-13 | 2001-02-21 | Tailored blank article and manufacturing method of the same |
US09/937,119 US6601909B2 (en) | 2000-03-13 | 2001-02-21 | Tailored blank article and manufacturing method of the same |
HK02108564.7A HK1049984B (zh) | 2000-03-13 | 2002-11-27 | 特製型坯材製物品及其製造方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000-068503 | 2000-03-13 | ||
JP2000068503A JP3330921B2 (ja) | 2000-03-13 | 2000-03-13 | テーラードブランク製物品及びその製造方法 |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/937,119 A-371-Of-International US6601909B2 (en) | 2000-03-13 | 2001-02-21 | Tailored blank article and manufacturing method of the same |
US10/414,926 Continuation US6739647B2 (en) | 2000-03-13 | 2003-04-16 | Tailored blank article and manufacturing method of the same |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001068435A1 true WO2001068435A1 (fr) | 2001-09-20 |
Family
ID=18587552
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2001/001229 WO2001068435A1 (fr) | 2000-03-13 | 2001-02-21 | Ebauche personnalisee et son procede de fabrication |
Country Status (9)
Country | Link |
---|---|
US (2) | US6601909B2 (ja) |
EP (2) | EP1186516B1 (ja) |
JP (1) | JP3330921B2 (ja) |
CN (2) | CN1217817C (ja) |
BR (1) | BR0105427B1 (ja) |
CA (1) | CA2389946C (ja) |
DE (1) | DE60143831D1 (ja) |
HK (1) | HK1049984B (ja) |
WO (1) | WO2001068435A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1323624A1 (fr) * | 2001-12-27 | 2003-07-02 | Faurecia Interieur Industrie | Ensemble structurel de planche de bord et procédé pour le réaliser |
EP1484130A1 (en) * | 2002-02-12 | 2004-12-08 | Kikuchi Co., Ltd. | Butt welder and butt welding method and butt welded product |
US7423233B2 (en) | 2003-06-05 | 2008-09-09 | Sumitomo Metal Industries, Ltd. | Butt welding device and butt welding method |
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JP6209768B2 (ja) * | 2014-06-11 | 2017-10-11 | トヨタ車体株式会社 | 車両のボディ構造 |
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- 2001-02-21 EP EP01906148A patent/EP1186516B1/en not_active Expired - Lifetime
- 2001-02-21 CA CA002389946A patent/CA2389946C/en not_active Expired - Fee Related
- 2001-02-21 EP EP10166722.8A patent/EP2241494B1/en not_active Expired - Lifetime
- 2001-02-21 CN CN200510051915A patent/CN100581723C/zh not_active Expired - Fee Related
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1323624A1 (fr) * | 2001-12-27 | 2003-07-02 | Faurecia Interieur Industrie | Ensemble structurel de planche de bord et procédé pour le réaliser |
FR2834271A1 (fr) * | 2001-12-27 | 2003-07-04 | Sai Automotive Allibert Ind | Ensemble structurel de planche de bord et procede pour le realiser |
EP1484130A1 (en) * | 2002-02-12 | 2004-12-08 | Kikuchi Co., Ltd. | Butt welder and butt welding method and butt welded product |
EP1484130A4 (en) * | 2002-02-12 | 2006-04-12 | Kikuchi Co Ltd | STUMP-WELDING MACHINE AND STUMP-WELDING METHOD AND PRODUCT MANUFACTURED BY STUMP-WELDING |
EP1800788A1 (en) * | 2002-02-12 | 2007-06-27 | Kikuchi Co., Ltd. | Butt welding apparatus, butt welding method, and butt welded product |
US7307235B2 (en) | 2002-02-12 | 2007-12-11 | Kikuchi Co., Ltd. | Butt welding apparatus, butt welding method, and butt welded product |
US7423233B2 (en) | 2003-06-05 | 2008-09-09 | Sumitomo Metal Industries, Ltd. | Butt welding device and butt welding method |
Also Published As
Publication number | Publication date |
---|---|
CN1651184A (zh) | 2005-08-10 |
CA2389946A1 (en) | 2001-09-20 |
DE60143831D1 (de) | 2011-02-24 |
EP1186516A4 (en) | 2007-09-05 |
BR0105427A (pt) | 2002-03-26 |
JP3330921B2 (ja) | 2002-10-07 |
US6739647B2 (en) | 2004-05-25 |
CN100581723C (zh) | 2010-01-20 |
CN1217817C (zh) | 2005-09-07 |
EP2241494B1 (en) | 2016-04-20 |
CN1364128A (zh) | 2002-08-14 |
EP1186516A1 (en) | 2002-03-13 |
HK1049984A1 (en) | 2003-06-06 |
HK1049984B (zh) | 2005-12-30 |
CA2389946C (en) | 2008-02-19 |
BR0105427B1 (pt) | 2009-08-11 |
JP2001253366A (ja) | 2001-09-18 |
US20030071488A1 (en) | 2003-04-17 |
EP2241494A1 (en) | 2010-10-20 |
US20030193214A1 (en) | 2003-10-16 |
EP1186516B1 (en) | 2011-01-12 |
US6601909B2 (en) | 2003-08-05 |
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