JPH01289574A - Method for joining body structure of vehicle and shape for joining - Google Patents

Abstract

PURPOSE:To improve workability and reliability by using an Al shape obtained by forming integrally a metallic material for joint having the same quality as a metallic body structure different from Al with the Al for joining an Al body structure to weld and join the metallic material for joining of the Al shape to the metallic body structure different from the Al. CONSTITUTION:A side body structure 1 is the Al extruded shape and a stainless steel plate 3 is pressed-in for joining and as a reinforcing member extending over the bottom of a long base part 2 of said side body structure 1 and the inside of a lower side wall 1a of the side body structure 1 to form an Al composite extruded shape. This Al composite extruded shape is used for a joining part with a stainless steel frame side beam 4 and the above-mentioned stainless steel 3 and frame side beam 4 are subjected to fillet welding and joined together. An end of the long base part 2 of the side body structure 1 and an end of the lower side wall 1a of the side body structure 1 are pressed respectively and the stainless steel plate 3 can be joined thereto together. By this method, the workability and reliability can be improved as compared with mechanical joining of a rivet, a bolt, etc.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for joining vehicle structures made of aluminum and a metal different from the aluminum, and to a joining profile used for joining these dissimilar metal members.

[Conventional technology]

Conventionally, in vehicle structures constructed by joining dissimilar metal members, mechanical joining methods using rivets, hack bolts, etc. have been used to join, for example, steel bridges and underframes, or gables and underframes. was.

[Problem to be solved by the invention]

However, with the above-mentioned joining method, the rivet holes and bolt holes must be machined on the actual vehicle due to accuracy, which poses problems in workability and makes it difficult to obtain watertightness and airtightness. There was a problem that.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a method for joining vehicle structures that simplifies the work of joining dissimilar metal members, and a joining profile used for joining these dissimilar metal members.

[Means to solve the problem]

To achieve the above object, a vehicle structure joining method according to a first aspect of the present invention provides a vehicle structure joining method for joining an aluminum body structure and a metal body structure different from aluminum, wherein the vehicle body structure is made of a metal body different from aluminum and the same type of bonding. An aluminum profile in which a metal material for use is integrally formed with aluminum is used for the joining part of the aluminum structure, and the joining metal material of the aluminum profile and the metal structure different from the aluminum are welded together. The second invention is a joining shape applicable to the above joining method, in which a core material of a metal different from aluminum is embedded in aluminum and integrally extruded, and the core material is formed into an aluminum extruded shape. It is characterized by its increased strength and its use in bonding aluminum to different metal members.

〔Example〕

Hereinafter, each embodiment of the present invention will be described based on the drawings.

1 to 41 show respective embodiments in which the present invention is applied to the connection between the long base portion of the side structure and the side beam of the underframe.
In the embodiment, the side structure 1 is an extruded aluminum section, and the lower surface of the long base part 2 of the side structure 1 and the lower FiIs wall 1a of the side structure 1 are
A stainless steel plate 3 is press-fitted to the inside of the frame for connection and as a strength member to make an aluminum composite extruded shape, and the aluminum composite extrusion is used for the joint with the underframe side beam 4, and the stainless steel plate 3 and the stainless steel Said underframe side beam 4
and are joined by fillet welding.

In addition, the end of the long base part 2 of the side structure 1 and the lower part f of the side structure 1
The stainless steel plates 3 may be joined by pressing the respective ends of the llll11a.

FIG. 2 shows a second embodiment in which a stainless steel plate 3 and the underframe side beams 4 made of stainless steel are joined by spot welding or plug welding, with the same structure as the first example.

FIG. 3 shows the long base portion 6 of the aluminum side structure 5,
Stainless steel members 7, 7 each having a substantially trapezoidal cross section are buried in the lower side wall 5a of the side structure 5 with their upper bases exposed and integrally extruded to increase the strength of the side structure 5. At the same time, the stainless steel materials 7, 7 are made into aluminum composite extruded shapes for connection with the stainless steel underframe side beams 8, and the stainless steel materials 7, 7 and the stainless steel underframe side beams 8 are spot welded or plug welded. A third embodiment is shown in which the connection is made by the following.

FIG. 4 shows an aluminum composite extruded shape in which a stainless steel plate 10 is embedded and integrally extruded in the lower side 19a which becomes the joint part of the aluminum side structure 9.
A fourth embodiment is shown in which the underframe side beams 11 are also integrally formed into an aluminum composite extruded shape by embedding a stainless steel plate 12 in aluminum and welding the aluminum together.

Moreover, FIG. 5 shows a fifth embodiment in which the profile of the present invention is applied to the connection between a side structure and an inner bone, and shows a side structure 1 made of aluminum.
3, the stainless steel material 14 having a substantially trapezoidal cross section is embedded in aluminum as a bonding and strength member, and the long girder 15 of an aluminum composite extruded shape is integrally extruded, and the stainless steel material 14 and the stainless steel material 14 are welded together. inner bone 16
and are connected by plug welding.

Incidentally, as shown in FIG. 6, the stainless steel material 17 may have a substantially T-shaped cross section, and its head side may be buried and integrally extruded. Further, instead of welding, it is also possible to form a female screw hole in the stainless steel material 14, 17 and connect with bolts.

In each of the above embodiments, the side structure and the underframe or inner frame are welded together as described above, so there is no need to drill rivet or bolt holes or seal the holes as in the past. can improve sexual performance.

Further, in each of the above embodiments, the 1llll #1 body and the underframe or inner bone are welded together, but the present invention
Effective for joining the end structure and underframe, or the side structure and roof structure, etc.

(Effects of the Invention) As described above, the first aspect of the present invention provides a method for joining a metal structure different from an aluminum structure to a vehicle structure, in which a metal structure having the same quality as the metal structure different from aluminum is used. An aluminum section in which a metal material is integrally formed with an aluminum ram is used for the joining part of the aluminum structure, and the joining metal material of the aluminum section and the metal structure different from the aluminum are welded together, so that the connection is not made. Since the parts are of the same quality, they can be joined by welding,
Workability and reliability can be improved compared to conventional mechanical connections such as rivets and bolts. Further, the second invention is a joining shape used in the joining method of the first invention, in which a core material of a metal different from aluminum is embedded in aluminum and integrally extruded, so that the core material is made of aluminum. It can be used to increase the strength of extruded sections and to connect aluminum to different metal parts.

[Brief explanation of the drawing]

1 to 4 show embodiments in which the present invention is applied to the connection between the long base portion of the side structure and the side beam of the underframe, and FIG. 1 is a sectional view of the first embodiment, and FIG. FIG. 3 is a cross-sectional view of the third embodiment, FIG. 4 is a cross-sectional view of the fourth embodiment, and FIG. 5 is a cross-sectional view of the second embodiment. FIG. 6 is a cross-sectional view showing the fifth embodiment, and FIG. 6 is a cross-sectional view showing the sixth embodiment in which the present invention is applied to the connection between the side structure and the inner bone. 1.5.9.13...Side structure 2.6...Long base 3,10.12...Stainless steel plate 4゜8
．． 11... Underframe side beam 7.14... Stainless steel material 15... Long beam patent applicant Nippon Sharyo Manufacturing Co., Ltd. Figure 1

Claims (1)

[Scope of Claims] 1. In a vehicle structure joining method for joining an aluminum body structure and a metal body body different from aluminum, a joining metal material of the same quality as the metal body body different from aluminum is integrally formed with aluminum. A method for joining structures of a vehicle, characterized in that the formed aluminum section is used as a joining portion of the aluminum structure, and a joining metal material of the aluminum section is welded to a structure made of a metal different from the aluminum. 2. A core material made of a metal different from the aluminum is embedded in aluminum and integrally extruded, and the core material is used to increase the strength of the aluminum extruded shape and to connect the aluminum to a metal member different from the aluminum. A shape for joining.