CN214354583U

CN214354583U - Titanium honeycomb sandwich structure board

Info

Publication number: CN214354583U
Application number: CN201920536307.1U
Authority: CN
Inventors: 杨倩倩; 曹磊; 刘源; 李培旭; 杨少丹; 马明星
Original assignee: Tianjin Research Institute For Advanced Equipment Tsinghua University Luoyang Advanced Manufacturing Industry Research And Development Base
Current assignee: Tianjin Research Institute For Advanced Equipment Tsinghua University Luoyang Advanced Manufacturing Industry Research And Development Base
Priority date: 2019-04-18
Filing date: 2019-04-18
Publication date: 2021-10-08
Anticipated expiration: 2029-04-18

Abstract

A titanium honeycomb sandwich structure plate comprises an upper panel, a lower panel and a titanium honeycomb core body positioned between the upper panel and the lower panel, wherein the upper panel and the lower panel are both pure titanium plates or titanium alloy plates; the titanium honeycomb core body comprises a plurality of corrugated plates, two adjacent corrugated plates are oppositely arranged and fixed through the back laser welding of concave parts of the corrugated plates, and each corrugated plate is a pure titanium plate or a titanium alloy plate; the upper end face and the upper panel of the titanium honeycomb core body are glued, and the lower end face and the lower panel of the titanium honeycomb core body are glued, so that a plurality of honeycombs of the titanium honeycomb core body are closed. The titanium honeycomb core body of the utility model is fixed by laser welding, compared with the brazing fixation, the strength of the titanium honeycomb core body is ensured, and the cost of raw materials is reduced; compared with a fused deposition method, the titanium honeycomb core has regular cell size, and the porosity can be freely controlled. The utility model discloses an it is fixed for splicing with titanium honeycomb core to go up the lower panel, has both ensured the intensity of titanium honeycomb sandwich structure board, has reduced the technology degree of difficulty of preparation titanium honeycomb sandwich structure board again.

Description

Titanium honeycomb sandwich structure board

Technical Field

The utility model belongs to the technical field of the metallic structure material, in particular to titanium honeycomb sandwich structure board of novel structure.

Background

The titanium honeycomb sandwich structure plate is formed by an upper panel and a lower panel which sandwich a titanium honeycomb core, has the advantages of light weight, high specific strength and rigidity, noise reduction, heat insulation, shock absorption, moisture prevention and the like, and is widely applied to the fields of aerospace and marine equipment. However, the existing preparation process of the titanium honeycomb sandwich structure plate has the defects of high cost, complex process equipment, irregular pore size and the like, and is not beneficial to popularization of the product.

SUMMERY OF THE UTILITY MODEL

To the shortcoming that current titanium honeycomb sandwich structure board exists, the utility model aims to provide an adopt titanium or titanium alloy through splice and the fixed titanium honeycomb sandwich structure board that forms of laser welding.

The purpose of the utility model is realized by adopting the following technical scheme. According to the utility model, the titanium honeycomb sandwich structure plate comprises an upper panel, a lower panel and a titanium honeycomb core body positioned between the upper panel and the lower panel, wherein the upper panel is a pure titanium plate or a titanium alloy plate with the thickness less than or equal to 5mm, and the lower panel is a pure titanium plate or a titanium alloy plate with the thickness less than or equal to 5 mm; the titanium honeycomb core body comprises a plurality of corrugated plates, two adjacent corrugated plates are oppositely arranged and fixed through the back laser welding of concave parts of the corrugated plates, and each corrugated plate is a pure titanium plate or a titanium alloy plate with the wall thickness less than or equal to 1 mm; the upper end face and the upper panel of the titanium honeycomb core body are glued, and the lower end face and the lower panel of the titanium honeycomb core body are glued, so that a plurality of honeycombs of the titanium honeycomb core body are closed.

Further, the corrugated plate includes, but is not limited to, a semi-regular hexagonal corrugated plate, a corrugated plate, and a dog-leg corrugated plate.

Borrow by above-mentioned technical scheme, the utility model discloses following beneficial effect has:

1. the titanium honeycomb core body of the utility model is fixed by laser welding, compared with the brazing fixation, the strength of the titanium honeycomb core body is ensured, and the cost of raw materials is reduced; compared with a fused deposition method, the titanium honeycomb core body of the utility model has regular cell size and freely controllable porosity;

2. the utility model discloses an it is fixed for splicing with titanium honeycomb core to go up the lower panel, has both ensured the intensity of titanium honeycomb sandwich structure board, has reduced the technology degree of difficulty of preparation titanium honeycomb sandwich structure board again.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more obvious and understandable, the following preferred embodiments are described in detail with reference to the accompanying drawings.

Drawings

Fig. 1 is a schematic structural diagram of a titanium honeycomb sandwich structure plate (with an upper panel removed) according to the present invention.

Fig. 2 is a top view of fig. 1.

FIG. 3 is a graphical representation of data from a titanium honeycomb sandwich panel tested using a universal tester.

[ description of reference ]

1-corrugated plate

101-back side

102-top surface

103-bottom surface

2-lower panel

3-titanium honeycomb core

Detailed Description

The technical solution of the present invention will be clearly and completely described below with reference to the specific embodiments.

Referring to fig. 1 and fig. 2, the titanium honeycomb sandwich structure plate manufactured in this embodiment includes an upper panel, a lower panel 2, and a plurality of half-regular-hexagonal corrugated plates 1 located therebetween, where the upper panel and the lower panel 2 are pure titanium plates with a thickness of 1 mm; each half-regular-hexagon corrugated plate 1 is formed by rolling (or stamping) pure titanium foil with the thickness of 0.1mm, is a pure titanium plate, and has the side length of 1.8mm for forming a regular-hexagon honeycomb. A plurality of half regular hexagon buckled plate 1 passes through the back 101 laser welding formation terminal surface of concave part for the honeycomb titanium honeycomb core 3 of regular hexagon, and two adjacent buckled plate 1 are relative arrangement. The upper end face (i.e., the face formed by the top faces 102 of the corrugated plates) of the titanium honeycomb core 3 is bonded to the upper face plate by epoxy resin adhesive, and the lower end face (i.e., the face formed by the bottom faces 103 of the corrugated plates) is bonded to the lower face plate 2 by epoxy resin adhesive, so that the regular hexagonal honeycomb is closed.

In this example, the size of the prepared titanium honeycomb core was 300 × 200 × 13mm, and the size of the prepared titanium honeycomb sandwich structure plate was 300 × 200 × 15 mm. Referring to fig. 3, a mechanical property of the titanium honeycomb sandwich structure plate was tested by using a universal testing machine, and the maximum compressive stress and yield strength of the titanium honeycomb sandwich structure plate manufactured in this example were 27.4Mpa and 23.8Mpa, respectively.

Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solutions of the present invention should be covered within the scope of the claims of the present invention as long as they do not depart from the design and scope of the technical solutions of the present invention.

Claims

1. A titanium honeycomb sandwich structure plate is characterized by comprising an upper panel, a lower panel and a titanium honeycomb core body positioned between the upper panel and the lower panel, wherein the upper panel and the lower panel are both pure titanium plates with the thickness of 1 mm; the titanium honeycomb core body comprises a plurality of half-regular-hexagon corrugated plates, two adjacent half-regular-hexagon corrugated plates are oppositely arranged and fixed through the back laser welding of concave parts of the corrugated plates, each half-regular-hexagon corrugated plate is a pure titanium plate with the wall thickness of 0.1mm, and the side length of the pure titanium plate for forming the regular-hexagon honeycomb body is 1.8 mm; the upper end face of the titanium honeycomb core body is bonded with the upper panel through epoxy resin glue, and the lower end face of the titanium honeycomb core body is bonded with the lower panel through epoxy resin glue, so that a plurality of honeycombs of the titanium honeycomb core body are closed; the size of the obtained titanium honeycomb core is 300 × 200 × 13mm, the size of the titanium honeycomb sandwich structure plate is 300 × 200 × 15mm, and the maximum compressive stress of the titanium honeycomb sandwich structure plate is 27.4MPa, and the yield strength of the titanium honeycomb sandwich structure plate is 23.8 MPa.