JPH0780976A - Brazed laminated panel and method of manufacturing the same - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a high-strength brazed laminated panel by securely brazing the core material 12 and the frame material 13. [Structure] A core member 12 and a frame member 13 surrounding the core member 12 are arranged between two face plates 11 and brazed. The frame member 13 at the contact portion between the core member 12 and the frame member 13 has a concave groove 13a into which the end of the long piece 12a forming the core member 12 is inserted.
The ends of the long pieces 12a are joined by brazing at this portion. Therefore, the strength of this portion can be improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a brazing laminated panel used as a strength member, and more particularly to a brazing honeycomb panel made of a light alloy.

[0002]

2. Description of the Related Art In a brazed laminated panel, a core material is arranged between two face plates and the contact surfaces are joined by brazing.

In the case where the brazed laminated panel is used as a strength member, a frame material of pressure wall is arranged between two face plates and along the edge of the face plate, and the face plate and this frame member are brazed. Attached. Then, the brazed laminated panels are joined together by welding to form, for example, a structure of a railway vehicle. The said welding welds the edge parts of a brazing laminated panel. That is, the face plate at the end of the brazed laminated panel and the frame material are welded to the face plate and the frame material of the adjacent brazed laminated panel.

There is also one in which a thick-walled bone member is arranged inside a frame surrounded by four frame members and two face plates.

Such a brazed laminated panel is disclosed in Japanese Patent Laid-Open No.
No. 16801.

[0006]

A brazed laminated panel is lightweight, has a large out-of-plane bending structure, and is suitable as a strength member. When a plurality of brazed laminated panels are joined together to form a large panel, welding is possible by arranging a frame material of pressure wall at the joint as described above. Also, the frame material,
The bone member also functions as a strength member.

As described above, the frame member and the bone member are important as a strength member. As a result of various studies, it has been found that brazing of the core material and the frame material or the bone material is not performed locally, so that it is locally weak and the characteristics of the brazed laminated panel cannot be sufficiently utilized.

Since the core material is formed by laminating a plurality of thin plates bent in a wave shape, it is considered that brazing becomes difficult because the contact surface with the frame material and the bone member is small.

An object of the present invention is to provide a structure capable of sufficiently brazing a core material and a frame material or the like.

[0010]

According to the present invention, there is provided a brazed laminated panel in which a core material and a frame material are arranged between two face plates, and these contact portions are joined by brazing. The frame material at the contact portion between the end portions of the plurality of plates constituting the core material and the frame material is concave, and the frame material and the end portion of the plate are brazed at the concave portion. It is characterized in that an attached laminated panel is constructed.

[0011]

The brazing is easily performed because the end portions of the respective plates forming the core member are in the recesses of the frame member that come into contact with the end members. Therefore, the strength of this portion can be made sufficient, and the laminated panel has the required strength.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 1, 2, 5, and 6.

5 to 6, a brazed laminated panel 10 includes two face plates 11 and a core material 1 arranged between them.
2, 12, frame members 13 and 14, and a bone member 15, and the contact surfaces are brazed. The frame members 13 and 14 and the skeleton member 15 serve as a strength member and are thick. The frame members 13 and 14 have a channel-shaped cross section. A plurality of the laminated panels are arranged side by side and the face plates 10 and 11 of the laminated panel and the frame members 13 and 14 are welded to the adjacent ones to form a wide panel. For example, it constitutes the structure of a railway vehicle. These materials are aluminum alloys.

The structure of the contact portion between the frame members 13 and 14 and the core member 12 will be described with reference to FIGS. The core material 12 has a large number of hexagonal cells. The core material 12 is, for example, an array of thin and long plates (hereinafter referred to as long pieces) 12a bent in an uneven shape. Hexagonal cells are constructed by arranging long pieces. Long piece 12a, face plate 1
1. The bone member 15 is brazed.

The portion of the frame member 13 that comes into contact with the end of the long piece 12a has a concave shape 13a. The recess 13a has a saw-tooth shape. The vertical surface of the sawteeth 13a is located at the end portion of the long piece 12a and overlaps. That is, the surface of the long piece 12a along the longitudinal direction of the long piece 12a and the vertical surface of the saw tooth 13a are parallel and overlap. The length L of the vertical surface of the saw tooth 13a is several mm. Since the frame material 13 is an extruded mold material,
The saw tooth 13a is cut on the extruded mold material at a predetermined pitch. Further, in order to make it easier to insert the long piece 12a into the groove of the saw tooth 12a of the frame member 13 from above, the upper end of the groove of the saw tooth 12a is enlarged upward.

The structure of the contact portion between the frame material 13 and the core material 12 on the multi-end side of the laminated panel 10 is also the same as above. Further, the skeleton member 15 that comes into contact with the core members 12 and 12 has the same configuration as the frame member 13. The bone member 15 is also a frame member for the core 12.

When this is brazed, the contact portion is brazed. Since both sides of the long piece 12a of the core material 12 are brazed, the vertical surfaces of the saw teeth 13a of the frame material 13 and the long piece 12a are brazed. The saw tooth 13a is composed of a vertical surface and an inclined surface, so that the saw tooth 13a can be easily assembled during assembly.
Even if the position of the long piece 12a is slightly displaced with respect to a, the long piece 12a
Can be moved by the slope and contact the vertical.

The brazing material drops from the upper face plate 11 by the brazing work, but the excess brazing material in the saw teeth 13a is accumulated at the corners of the vertical surface and the inclined surface, so the notch becomes small and the strength is increased. There is no fear of deterioration.

The contact portion between the frame member 13 and the frame member 14 is welded before or after the brazing operation.

Therefore, the laminated panel has a sufficient strength.

If the overlap margin (L) between the saw tooth 13a and the long piece 12a is too large, the notch becomes large.
Determined in relation to the strength of each part.

The embodiment shown in FIG. 3 will be described. In this embodiment, the concave portion has a rectangular shape 13b instead of the saw tooth shape 13a. This rectangular shape 13b is the long piece 12a.
It has two faces parallel to the ends of the. The width L ₂ of the groove of the rectangular shape 13b is slightly larger than the thickness of the two long pieces 12b. Generally, it is said that brazing can be performed firmly if the gap between the two members is 1 mm or less.
The size of 2 is provided so that the gap between the groove and the long piece 12a is 1 mm or less. The bottom portion of the groove of the rectangle 13b has a triangular shape or an arc shape. Further, the open end side of the rectangle 13b is enlarged so that the long piece 12a can be easily inserted.

The embodiment shown in FIG. 4 will be described. In this embodiment, the concave portion has a triangular shape 13c. In this case, there is no parallel part between the frame member 13 and the long piece 12a, but brazing can be performed in a part where the gap between them is 1 mm or less.

[0024]

According to the present invention, it is possible to provide a high-strength laminated panel with a simple structure in which a recess is provided in the frame member, and the contact portion between the core member and the frame member can be reliably brazed. is there.

[Brief description of drawings]

FIG. 1 is a horizontal sectional view of a main part of a brazed laminated panel according to an embodiment of the present invention.

2 is a sectional view taken along line 2-2 of FIG.

FIG. 3 is a horizontal sectional view of an essential part of another embodiment of the present invention.

FIG. 4 is a horizontal sectional view of an essential part of another embodiment of the present invention.

FIG. 5 is a plan view of a brazed laminated panel.

6 is a sectional view taken along line 6-6 of FIG.

[Explanation of symbols]

10 ... Brazing laminated panel, 11 ... Face plate, 12 ... Core material,
12a ... Long piece, 13, 14 ... Frame material, 13a, 13b, 1
3c ... Recessed portion, 15 ... Bone member

Claims (6)

[Claims] 1. A brazing laminated panel in which a core material and a frame material are arranged between two face plates, and these contact portions are joined by brazing, and a plurality of plates constituting the core material are provided. There is a recess in the frame material at the contact portion between the end of the core material and the frame material, the end of the core material is inserted into the recess, and the recess and the end of the core material are brazed. It has a brazed laminated panel. 2. The brazed laminated panel according to claim 1, wherein the concave shape has a surface parallel to the long piece constituting the core material. 3. The brazed laminated panel according to claim 2, wherein the recess has a saw-tooth shape, and a vertical surface of the saw tooth overlaps with the long piece. Attached laminated panel. 4. The brazed laminated panel according to claim 2, wherein the recess has a rectangular shape, and a long side of the rectangular shape overlaps with the long piece. 5. The brazed laminated panel according to claim 1, wherein the recess has a triangular shape. 6. A brazing lower face plate, a plurality of members constituting a core material, which are arranged on the outside of the brazed long piece, and the core material, wherein the long piece is inserted. Preparing a frame material having a concave portion, arranging the frame material and the plurality of long pieces between the two face plates, inserting an end portion of the long piece into the concave portion, and then brazing A method of manufacturing a brazed laminated panel, which is characterized by performing work.