JPH06206270A - Honeycomb panel and manufacture thereof - Google Patents

Abstract

PURPOSE:To provide a honeycomb panel and manufacture thereof by employing some measures comprising a first step of achieving strong, positive, and stable welding and brazing and thereby preventing joint failures such as bonding unevenness, a second step of shortening the joint time without the necessity of a complex temperature control, pressure control, time control or the like, and a third step of raising the use temperature up to the temperature close to the melting point of a matrix. CONSTITUTION:In the honeycomb panel and manufacture thereof, by the use of a first small tugs 7 formed on an objective part to be laminated, welding is carried out between the corrugated sheets of a honeycomb structure 1, and by the use of a second small lugs 10 formed every generally flange-shaped securing pieces 9, the honeycomb structure 1 and a surface sheet 1 are welded each other. Besides, It is preferred that in taking the place of these first small lugs 7 or second small lugs 10, by heaping a first brazing material 11 and second brazing material 12 thereon, brazing is carried out between the corrugated sheets 5 of honeycomb structure 1, and also between the honeycomb structure 1 and the surface sheet 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a honeycomb panel and its manufacturing method. That is, the present invention relates to a honeycomb panel in which surface plates are welded and brazed on both surfaces of a honeycomb structure which is a core material, and a manufacturing method thereof.

[0002]

2. Description of the Related Art A honeycomb structure 1 as shown in FIG. 5 (1) and a honeycomb panel 2 as shown in FIG. 5 (2) are conventionally manufactured, for example, as follows. It was That is, a sheet-shaped strip-shaped metal base material is bent into a corrugated plate, which is cut and stacked,
The honeycomb structure 1 was formed by heating and joining the stacking target parts by adhesion. Then, the honeycomb panel 2 is manufactured by using such a honeycomb structure 1 as a core material and bonding the front surface 3 made of metal to the both end surfaces of the core material by adhesion. The bonding between the honeycomb structure 1 and the surface plate 3 was carried out by previously arranging an adhesive sheet of an adhesive between the two and heating and pressing with a hot press machine or the like.

[0003]

By the way, the following problems have been pointed out in the conventional honeycomb panel 2 and the manufacturing method thereof. First of all, it has been pointed out that a bonding failure due to uneven adhesion is caused. That is, when forming the honeycomb structure 1 and manufacturing the honeycomb panel 2,
Although a joining method using an adhesive was adopted, for example, due to gas generation from the adhesive sheet during heating and pressurization,
It has been pointed out that problems such as defective bonding due to uneven adhesion tend to occur, and that corrugated plates in the honeycomb structure 1 are separated, the honeycomb structure 1 and the surface plate 3 are separated, and the honeycomb panel 2 is expanded. Secondly, since a joining method using an adhesive is also used, complicated temperature control, pressure control, time control, etc. are required for heating and pressurizing.
Also, it has been pointed out that the bonding takes a long time. Thirdly, since the joining method using the adhesive is adopted, the manufactured honeycomb panel 2 has a working temperature of
There is also a problem that the melting point of the adhesive is limited to about 200 degrees or less.

In view of the above situation, the present invention has been made to solve the problems of the above-mentioned conventional example. In claims 1 and 2, the first small protrusions formed in the stacking target portion. Weld between corrugated plates of honeycomb structure using
The honeycomb structure and the surface plate are welded together by using the second small protrusions formed for each predetermined mounting piece. Further, in claims 3 and 4, the small protrusions are arranged on the stacking target portion. Using the first brazing filler metal thus obtained, the corrugated plates of the honeycomb structure are brazed together, and the second brazing filler metal provided in small protrusions for each predetermined mounting piece is used to form a honeycomb structure. By brazing the surface plate, firstly, a joint failure that causes peeling or expansion is prevented, and secondly, complicated temperature control, pressure control, time control and the like are unnecessary, and
The bonding time is shortened, and thirdly, the operating temperature is improved,
An object is to propose a honeycomb panel and a manufacturing method thereof.

[0005]

The technical means of the present invention for achieving this object are as follows. First, claim 1
About: That is, this honeycomb panel is formed by joining metal surface plates to both surfaces of a metal honeycomb structure that is a planar aggregate of hollow columnar cells that are core materials. The honeycomb structure is formed by stacking metal corrugated plates in which corrugated concavities and convexities are continuously formed by bending and using the first small protrusions formed in respective parts to be stacked. Be welded together. In addition, the honeycomb structure and the surface plate are provided with a second small member formed on the attachment piece via each attachment piece bent into a substantially flange shape at both ends of the corrugated plate forming the honeycomb structure. It is welded using the protrusion.

Next, the second aspect is as follows. That is, in this method for manufacturing a honeycomb panel, a sheet-shaped strip-shaped metal base material is prepared in advance, and the base material is added to each portion to be stacked when bent to a posterior corrugated sheet. The first small protrusions are formed every other one, and the second small protrusions are formed for each attachment piece located at both ends of each part when the posterior corrugated sheet is bent. Then, first, the base material is bent into each of the above-mentioned parts to be stacked and other parts to form a corrugated plate in which corrugated concavities and convexities are continuously bent and formed, and the mounting piece is attached to the corrugated plate. The respective parts are bent into a substantially flange shape. Next, by stacking a plurality of the corrugated plates and welding the respective parts to be stacked to each other using the first small protrusions, a metal plate which is a planar aggregate of hollow columnar cells is formed. A honeycomb structure is formed. Thereafter, the honeycomb structure is obtained by using the honeycomb structure as a core material and welding the attachment pieces at both ends thereof to the metal surface plate by using the second small protrusions formed on the attachment pieces. To be

Claim 3 is as follows. That is, this honeycomb panel is formed by joining metal surface plates to both surfaces of a metal honeycomb structure that is a planar aggregate of hollow columnar cells that are core materials. In the honeycomb structure, metal corrugated plates in which corrugated concavities and convexities are continuously formed by bending are stacked, and the first brazing is arranged in small protrusions on each part to be stacked. It is brazed using wood. Further, the honeycomb structure and the surface plate are mounted in a small projection shape on the mounting piece via each mounting piece bent in a substantially flange shape at both ends of the corrugated plate forming the honeycomb structure. It is brazed using the second brazing material.

Next, claim 4 is as follows. That is, in this method for manufacturing a honeycomb panel, a sheet-shaped strip-shaped metal base material is prepared in advance, and the base material is added to each portion to be stacked when bent to a posterior corrugated sheet. Every other piece, the first brazing filler metal is placed in the small protrusion shape, and the second brazing filler metal is placed in the small protrusion shape for each attachment piece located at both ends of each part when the posterior corrugated sheet is bent. deep. Then, first, the base material is bent into each of the above-mentioned parts to be stacked and other parts to form a corrugated plate in which corrugated concavities and convexities are continuously bent and formed, and the mounting piece is attached to the corrugated plate. The respective parts are bent into a substantially flange shape. Next, by stacking a plurality of the corrugated plates and brazing the respective parts to be stacked, using the first brazing filler metal, a metal, which is a planar aggregate of hollow columnar cells, is formed. The honeycomb structure of is molded. Then, the honeycomb structure is used as a core material, and the second brazing material provided on each of the mounting pieces at both ends of the honeycomb structure is used to braze the metal surface plate to obtain a honeycomb panel. can get.

[0009]

Since the present invention comprises such means, it operates as follows. That is, in claims 1 and 2,
The honeycomb structure is formed by welding the stacked corrugated sheets by using the first small protrusions of the stacking target portion of the corrugated sheets. Then, the honeycomb panel is manufactured by welding the honeycomb structure and the surface plate with each mounting piece at both ends of the corrugated plate and utilizing the second small projections thereof.
As described above, the joining method is employed in which the electric current is concentrated on the first small protrusions and the second small protrusions to perform welding. Further, in claims 3 and 4, the honeycomb structure is formed by brazing between the corrugated plates that have been stacked using the first brazing material in the part to be stacked of the corrugated plates. It Then, the honeycomb panel is manufactured by brazing the honeycomb structure and the surface plate with each mounting piece at both ends of the corrugated plate and using the second brazing material. As described above, a joining method is employed in which brazing is performed by using the first brazing filler metal and the second brazing filler metal in the form of small protrusions.

Therefore, firstly, a joining method of welding using the first small protrusions and the second small protrusions or a joining method of brazing using the first brazing material and the second brazing material is adopted. As a result, strong, reliable, and stable welding and brazing are realized in this honeycomb panel, and joint defects such as uneven adhesion are prevented. Secondly, for the same reason, the honeycomb panel can be easily and easily manufactured, and complicated temperature control, pressure control, time control, etc. are unnecessary, and long time is not required for bonding. Thirdly, for the same reason, the honeycomb panel can be used up to a temperature close to the melting point of the base material.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below based on the embodiments shown in the drawings. 1, FIG. 2, FIG. 3 and FIG. 4 are provided for explaining the embodiment of the present invention. Then, FIG. 1 (1) is a plan view of the prepared base material 4, and FIG. 1 (2) is
A side view of the base material 4 and a view (3) are perspective views of the base material 4.
FIG. 2 is a perspective view immediately before the folded corrugated plates 5 are stacked. 3 (1) is a plan view of the main part immediately before the corrugated plates 5 are stacked, and FIG. 3 (2) is a front view of the main part of the step of welding the honeycomb structure 1 and the surface plate 3 together. Is. Figure 4
It is a perspective view of the process of welding the honeycomb structure 1 and the surface plate 3.

First, the manufacturing method will be described. In this manufacturing method, as shown in FIG. 1, a sheet-shaped strip-shaped metal base material 4 is prepared in advance, and when this base material 4 is bent into a posterior corrugated sheet 5, it is regarded as a stacking target. The first small projections 7 are formed every other one of the stacking target parts 6 and both ends of each part 6, 8 (including the stacking target part 6) when bent to the posterior corrugated sheet 5 are formed. The second small protrusions 10 are formed for each of the mounting pieces 9 located at.

These will be described in detail with reference to FIG. 1. First, a metal foil such as an aluminum foil or a stainless foil is used as the sheet-shaped strip-shaped base material 4 made of metal.
Then, the base material 4 is partitioned into the post-stacking target portion 6 and the other portion 8 at equal intervals in the longitudinal direction by the partition lines along the lateral direction, and in the illustrated example, As will be described later, because the honeycomb structure 1 including the regular hexagonal cells is formed, the stacking target portions 6 and the other portions 8 are alternately arranged. Further, the stacking target portion 6 and the other portion 8 are each formed with cutout pieces 9 at both ends in the lateral direction. The mounting piece 9 projects in a trapezoidal shape from each of the portions 6 and 8 and has a relationship in which a triangular notch is formed between adjacent parts.

Then, with respect to the stacking target portion 6 of the base material 4 as described above, the first small protrusions 7 are formed at every other portion, that is, at a ratio of one in two. .
In the illustrated example, the first small protrusions 7 are formed in a state of being convex A on the front side (concave on the rear side), and have a position, size, shape, etc. sufficient to concentrate the electric current at the time of spot welding after the fact. It is provided.

Further, the mounting pieces 9 of the respective portions 6 and 8 of the base material 4 are provided with the second small projections 10 on all of them. In the illustrated example, the second small protrusion 10 has one front-side convex A (rear-side concave) for the mounting piece 9 on one side (upper side in the drawing) along the longitudinal direction, and then 3
The convex B (concave on the back side) is formed on the back side of each piece, and the convex A is formed on the front side of one piece in that order. As for the second small projection 10, only the mounting piece 9 on this one side has a convex A on the front side only for the stacking target portion 6 in which the first small projection 7 is formed as described above. On the other hand, with respect to the mounting piece 9 on the other side (lower side in the drawing) along the longitudinal direction, the second small protrusions 10 have three convex portions A on the front side and then one convex portion on the back side. B, and three convex A's are formed in this order on the front side. Regarding the second small projection 10, the mounting piece 9 on the other side has only a convex B on the back side only for the stacking target portion 6 in which the first small projection 7 is not formed as described above. Of course, the second small protrusion 10 is also provided at a position, size, shape, etc., which is sufficient to concentrate the electric current during the subsequent welding, in accordance with the first small protrusion 7 described above.

In addition to this method, instead of forming the first small protrusions 7, a first brazing filler metal 11 arranged in the form of small protrusions is arranged, and instead of the second small protrusions 10, small protrusions are provided. You may make it arrange | position the 2nd brazing material 12 piled up in the shape. That is, instead of the method of forming the first small protrusions 7 and the second small protrusions 10 for welding, the first brazing filler metal 1 for brazing is used.
It is also conceivable to adopt a system in which the first and second brazing filler metals 12 are placed. Then, such a first brazing material 11 and a second brazing material 1
With regard to 2, starting from the state of convex A on the front side and convex B on the back side,
The position, size, shape, etc. conform to those described above for the first small protrusions 7 and the second small protrusions 10 and are set to be necessary and sufficient for brazing.

Then, first, as shown in FIGS. 2 and 3 (1), the base material 4 is sequentially inverted at equal intervals in the longitudinal direction by the partition lines along the short direction. By bending and sequentially bending the stacking target portion 6 and the other portion 8 to form the corrugated plate 5 in which corrugated irregularities are continuously bent and formed, the mounting piece 9 is attached to each portion. 8 is bent into a substantially flange shape.

These will be described in detail with reference to FIGS. 2 and 3 (1). By passing the base material 4 between press dies of a corrugated molding machine, that is, between corrugated gears,
A corrugated sheet 5 in which corrugated irregularities having a predetermined pitch and height, that is, the corrugated irregularities of a triangular shape, a trapezoidal shape, and various other shapes including the semi-hexagon of the illustrated example are continuously bent in parallel and in the longitudinal direction.
Is obtained. Then, with respect to each of the folding target portions 6 and the other portions 8 of the corrugated plate 5 as described above, the mounting pieces 9 located at both ends are bent at right angles to the portions 6 and 8, respectively. It is formed into a substantially flange shape so that it will function as a margin for glue as will be described later. Note that the mounting piece 9 in the illustrated example has the bending directions opposite to each other at both ends of each of the portions 6 and 8, that is, one side (upper side in the drawing) and the other side (lower side in the drawing), as appropriate. When one side is bent inward, the other side is bent outward, and conversely, when one side is bent outward, the other side is bent inward. Mounting piece 9
The bending directions of the parts 6 and 8 are appropriately reversed at both ends in this way, and when the corrugated plates 5 are stacked as described later, those of the adjacent stacking target parts 6 are mutually It is set so that it does not overlap and the opposite. And
By adopting such a bending direction, in the later-described welding or brazing of the honeycomb structure 1 and the surface plate 3 via the mounting pieces 9, the positioning accuracy between them is further improved, and the positioning accuracy between them is improved. There is an advantage that the bonding strength becomes stronger.

Next, such a corrugated plate 5 is cut into pieces each having a predetermined length, and a plurality of sheets are stacked, and each stacking target portion 6 is welded by using the first small projection 7. Thereby, the honeycomb structure 1 made of metal, which is a planar aggregate of the hollow columnar cells 13, is formed.

This will be described in detail with reference to the above-mentioned FIGS. 2 and 3 (1) and FIG. 5 (1).
After the corrugated plate 5 is cut into predetermined constant lengths, a plurality of corrugated plates 5 are stacked in multiple layers by aligning the mutual irregularities, that is, the valleys and the peaks, and abutting the mutual stacking target portions 6 respectively. . Then, spot welding such as projection welding or beam welding such as laser welding is performed by using the first small protrusions 7 formed on only one of the contacted stacking target portions 6. That is, for example, a spot welder is used to apply an electrode to energize the current to concentrate the current on each of the first small projections 7 and concentrate the resistance heat to melt the contacted portion 6 for stacking. The honeycomb structures 1 are formed by welding the corrugated plates 5 that have been welded and stacked. In addition, in such a honeycomb structure 1, in the illustrated example, each attachment piece 9 that is bent on both cell end face sides thereof is used.
Indicates that the directions of the second small protrusions 10 are opposite between the adjacent corrugated plates 5. That is, in each cell 13 of the honeycomb structure 1, the second small projections 10 of the respective mounting pieces 9 facing each other have opposite formation directions to the front and back sides, and when one of them has a convex A on the front side, they face each other. The other has a convex B on the back side.

The honeycomb structure 1 is composed of a planar aggregate of hollow columnar cells 13 as shown in FIG. That is, from a planar assembly of a large number of hollow columnar cells 13, which are partitioned into independent spaces by the cell walls 14 formed of the corrugated plates 5 joined by welding, and which have various shapes such as a regular hexagon. Become. In addition, the honeycomb structure 1 is generally excellent in weight ratio strength, lightweight, high in rigidity and strength, and is excellent in plane accuracy, heat retention, sound insulation, etc.
It is known that it can be easily molded, and is widely used for various structural materials and other purposes as it is or as the honeycomb panel 2 described later.

In place of the first small projection 7 for welding, the first brazing material 11 for brazing is used for the stacking target portion 6 as described above.
In the case of adopting the method of arranging the corrugated sheets, the corrugated plates 5 are stacked, and the stacking target portions 6 are brazed by using the first brazing filler metal 11 to form the hollow columnar cells 13
The honeycomb structure 1 made of metal, which is a planar aggregate of the above, is molded. When the brazing method is adopted as described above, other details are the same as those described above for the method of welding using the first small protrusions 7.

After that, the honeycomb structure 1 thus formed is used as a core material, and the attachment pieces 9 at both ends thereof are
The honeycomb panel 2 is obtained by welding the metal surface plate 3 using the second small protrusions 10 formed on each.

Regarding these, (2) of FIG. 3, FIG.
This will be described in detail with reference to FIG. 5 (2) and the like. First, the surface plate 3 is brought into contact with each attachment piece 9 that is bent into a substantially flange shape on both cell end faces of the honeycomb structure 1. Then, using the second small protrusions 10 formed on each of the mounting pieces 9, spot welding such as projection welding or beam welding such as laser welding is performed. That is, in the illustrated example, the upper and lower roll electrodes 15 and the electrode plate 1 of the spot welding machine.
By sandwiching both surface plates 3 with the honeycomb structure 1 as a core material between 6 and energizing them while pumping, current is concentrated in each second small protrusion 10 and resistance heat is concentrated to melt. As a result, the surface plate 3 and the respective mounting pieces 9 in contact with each other are welded, and the surface plate 3 and the honeycomb structure 1 are thereby welded to each other to manufacture the honeycomb panel 2 shown in FIG. 5 (2). To be done.

Instead of the first small projections 7 and the second small projections 10 for welding, the first brazing material 11 for brazing is used as described above.
In the case of adopting a method of placing the second brazing filler metal 12 or the second brazing filler metal 12, the honeycomb structure 1 is used as the core material, and the mounting pieces 9 at both ends thereof are attached to the metal surface plate 3 by using the second brazing filler metal 12. The honeycomb panel 2 is manufactured by brazing. When the brazing method is adopted as described above, other details are the same as those described above for the method of welding using the second small protrusions 10 and the like.

In this way, as shown in FIG. 5B, the metal honeycomb structure 1, which is a planar aggregate of the hollow columnar cells 13 as the core material, is provided with metal on both sides. The honeycomb panel 2 in which the manufactured front plate 3 is joined is manufactured. That is, in this honeycomb structure 1, the metal corrugated plates 5 in which the corrugated corrugations are continuously formed by bending are stacked, and the first small protrusions formed in each stacking target portion 6 are stacked. 7 is used for welding, and the honeycomb structure 1 and the surface plate 3 are corrugated plates 5 forming the honeycomb structure 1.
Through each mounting piece 9 bent into a substantially flange shape at both ends of
The second small protrusions 10 formed on the mounting piece 9 are used for welding. On the other hand, the first small projection 7 and the second small projection 1 for welding
When the honeycomb panel 2 is manufactured by adopting the method of placing the first brazing filler metal 11 and the second brazing filler metal 12 for brazing instead of 0 as described above, the honeycomb structure 1 is
The corrugated plates 5 made of metal are stacked and brazed by using the first brazing filler metal 11 arranged in a small projection on each stacking target portion 6, and the honeycomb structure 1 and The surface plate 3 is the second brazing material 1 which is mounted on the mounting pieces 9 in the form of small protrusions via the mounting pieces 9 at both ends of the honeycomb structure 1.
It is brazed using 2.

The present invention has been described above. Then it becomes as follows. That is, in the honeycomb panel 2 and the manufacturing method thereof, the honeycomb structure 1 uses the first small protrusions 7 formed in the stacking target portion 6 of the corrugated plate 5 made of metal to stack the stacks. By welding between the corrugated plates 5 formed, a planar aggregate of the hollow columnar cells 13 is formed. In the honeycomb panel 2, the honeycomb structure 1 and the metal surface plate 3 are attached to each end of the corrugated plate 5 via the attachment pieces 9 bent in a substantially flange shape, and each attachment piece 9 is attached. It is manufactured by welding using the formed second small projections 10. As described above, in the honeycomb panel 2 and the manufacturing method thereof, the predetermined first
A joining method is employed in which electric current is concentrated on the small protrusions 7 and the second small protrusions 10 to perform welding.

On the other hand, in the honeycomb panel 2 using the first brazing filler metal 11 and the second brazing filler metal 12 in place of the first small protrusions 7 and the second small protrusions 10 and the manufacturing method thereof, first, the honeycomb structure is obtained. 1 uses each of the first brazing filler metal 11 arranged in a small protrusion shape on the stacking target portion 6 of the metal corrugated plate 5,
By brazing between the corrugated plates 5 that are stacked, a planar aggregate of hollow columnar cells 13 is formed. In the honeycomb panel 2, the honeycomb structure 1 and the metal surface plate 3 are attached to each end of the corrugated plate 5 via the attachment pieces 9 bent in a substantially flange shape, and each attachment piece 9 is attached. It is manufactured by brazing by using each second brazing material 12 arranged in the shape of small protrusions. As described above, in the honeycomb panel 2 and the manufacturing method thereof, the joining method of performing brazing by using the predetermined first brazing material 11 and the second brazing material 12 is adopted.

Then, the honeycomb panel 2 and the manufacturing method thereof adopting such two joining methods are as follows. First, a joining method in which the predetermined first small projections 7 and the second small projections 10 are used for welding, or a predetermined first brazing material 11 and the second brazing material 12 are used for brazing. By adopting the joining method used, strong, reliable and stable welding and brazing are realized in this honeycomb panel 2. Since the joining method using an adhesive unlike the above-mentioned conventional example of this kind is not adopted, the joining failure such as the adhesion unevenness due to the generation of gas can be prevented.

Secondly, by adopting a joining method in which welding and brazing are carried out similarly, the joining time is shortened by the simple process and easy control, and the honeycomb panel 2
Will be manufactured. That is, since the joining method using an adhesive unlike the above-mentioned conventional example of this kind is not adopted, complicated temperature management, pressure management, time management, etc. are not required, and a long time is required for bonding and joining. There is no such thing.

Thirdly, by adopting a joining method in which welding and brazing are similarly performed, the honeycomb panel 2
Can be used up to a temperature close to the melting point of the base material 4, and the operating temperature is improved. That is, since the joining method using the adhesive as in the above-mentioned conventional example of this kind is not adopted, the operating temperature is not limited to about 200 degrees or lower which is the melting point of the adhesive.

[0032]

As described above, in the honeycomb core and the method for manufacturing the same according to the present invention, first, in claims 1 and 2, the first small protrusions formed in the stacking target portion are used,
The honeycomb structure and the surface plate are welded together by welding the corrugated plates of the honeycomb structure together with the use of the second small protrusions formed for each predetermined attachment piece.
Then, while brazing the corrugated sheets using the first brazing material that is arranged in the small projection shape in the stacking target portion, the second brazing material that is arranged in the small projection shape for each predetermined mounting piece is used. Then, by brazing the honeycomb structure and the surface plate together, the following effects are exhibited.

First, it is possible to prevent defective joints such as peeling and expansion. That is, in this honeycomb panel, strong, reliable, and stable welding and brazing are realized, and joint failure due to uneven adhesion such as in the conventional example of this kind is prevented. The occurrence of peeling between the plates, peeling between the honeycomb structure and the surface plate, expansion of the honeycomb panel, and the like are avoided.

Secondly, unlike the conventional example of this kind, the honeycomb panel can be easily manufactured without requiring complicated temperature control, pressure control, time control and the like. Furthermore, the bonding time is shortened, and the honeycomb panel is manufactured in a relatively short time.

Thirdly, the operating temperature is improved. That is,
Unlike the conventional example of this kind, the use temperature is not limited to about 200 degrees or less, and this honeycomb panel is
It can be used up to a temperature close to the melting point of the base material.
As described above, the effects of the present invention are remarkably large, such as the problems existing in this type of conventional example are eliminated.

[Brief description of drawings]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is used for explaining an embodiment of a honeycomb panel and a method for manufacturing the same according to the present invention. (1) is a plan view of a prepared base material, (2) is a side view of the base material, (3) The figure shows
It is a perspective view of the same base material.

FIG. 2 is a perspective view for explaining the embodiment and is a perspective view immediately before the folded corrugated plates are stacked.

3 is a view for explaining the same embodiment, FIG. 3 (1) is a plan view of an essential part immediately before the corrugated sheets are stacked, and FIG. 3 (2) is a process of welding a honeycomb structure and a surface plate. It is a front view of the principal part.

FIG. 4 is a perspective view of a step of welding a honeycomb structure and a surface plate.

FIG. 5 is a schematic front view of a general example, in which (1) is a honeycomb structure and (2) is a honeycomb panel.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Honeycomb structure 2 Honeycomb panel 3 Surface plate 4 Base material 5 Corrugated plate 6 Stacking target portion 7 First small protrusion 8 Other portion 9 Mounting piece 10 Second small protrusion 11 First brazing filler metal 12 Second brazing filler metal 13 Cell 14 cell wall 15 roll electrode 16 electrode plate A convex on the front side B convex on the back side

Claims (4)

[Claims] 1. A honeycomb panel comprising a metallic honeycomb structure, which is a planar aggregate of hollow pillar-shaped cells as a core material, and a metallic surface plate bonded to both sides of the honeycomb structure. Is a metal corrugated sheet in which corrugated concavities and convexities are continuously bent and formed, and is piled up and welded by using the first small protrusions formed in each portion to be piled up. Also, the honeycomb structure and the surface plate are formed on the mounting piece through the mounting pieces bent in a substantially flange shape at both ends of the corrugated plate forming the honeycomb structure. A honeycomb panel characterized by being welded using small protrusions. 2. A sheet-shaped strip-shaped base material made of metal is prepared, and when the base material is folded into post corrugated sheets, every other portion is subjected to a stacking operation. After forming the small protrusions, the second small protrusions are formed for each attachment piece located at both ends of each part when bent to the posterior corrugated sheet. The corrugated plate has a corrugated concavo-convex shape continuously formed by bending the parts to be stacked and other parts, and the mounting piece is bent into a substantially flange shape with respect to the parts. Bending, and then, by stacking a plurality of the corrugated plates, and welding each part of the stacking target by using the first small protrusions,
A metal honeycomb structure, which is a planar aggregate of hollow columnar cells, is molded, and then the honeycomb structure is used as a core material, and the second small pieces formed with the attachment pieces at both ends thereof respectively. Utilizing the protrusions,
A method for manufacturing a honeycomb panel, characterized in that the honeycomb panel is obtained by welding the surface panel made of metal. 3. A honeycomb panel in which a metallic surface plate is joined to both surfaces of a metallic honeycomb structure which is a planar aggregate of hollow columnar cells as a core material. Is made by stacking metal corrugated plates in which corrugated corrugations are continuously bent, and using the first brazing filler metal that is placed in small projections on each part to be stacked. The honeycomb structure and the surface plate are brazed, and the honeycomb structure and the surface plate are attached to the mounting piece through the mounting pieces bent in a substantially flange shape at both ends of the corrugated plate forming the honeycomb structure. A honeycomb panel, characterized in that it is brazed by using a second brazing material arranged in the form of small protrusions. 4. A sheet-shaped strip-shaped base material made of metal is prepared, and when the base material is folded into a posterior corrugated sheet, every other small projection is formed at each portion to be stacked. The first brazing filler metal in a circular shape, and the second brazing filler metal in the form of small protrusions for each attachment piece located at both ends of each part when bent to the posterior corrugated sheet. By bending the base material into each of the above-mentioned parts to be stacked and each other part, a corrugated plate in which corrugated concavities and convexities are continuously bent and formed, and at the same time, the mounting piece is attached to each part. On the other hand, a hollow columnar cell is formed by bending it into a substantially flange shape, and then stacking a plurality of the corrugated plates and brazing the respective parts to be stacked using the first brazing material. A metal honeycomb structure which is a planar aggregate of the above is formed, and thereafter, the honeycomb structure is used as a core material, A method for manufacturing a honeycomb panel, characterized in that a honeycomb panel is obtained by brazing a metal surface plate using the second brazing material provided on each of the mounting pieces at both ends.