Method for Manufacturing a Sandwich Panel

Patent metadata

Field	Value
Publication number	US-2017348789-A1
Application number	US-201515536971-A
Country	US
Kind code	A1
Filing date	Dec 17, 2015
Priority date	Dec 18, 2014
Publication date	Dec 7, 2017
Grant date	—

Abstract

The invention relates to a method for manufacturing a sandwich panel as a semi-finished product where at least one layer of a non-metallic material is positioned between at least two metallic layers. At least one of the metal layers is shaped into a three dimensional layer, and the metal layers are in direct mechanical contact to enable resistance weldability of the semi-finished product in order to connect the semi-finished product to a desired combination of solutions in a subsequent manufacturing process.

First claim

1 . A method for manufacturing a sandwich panel as a semi-finished product comprising, positioning at least one layer of a non-metallic material between at least two metallic layers wherein at least one of the metal layers is shaped into a three dimensional layer, and the metal layers directly contact each other to enable resistance weldability of the semi-finished product for connecting the semi-finished product to a desired combination of solutions in a subsequent manufacturing process.

2 . The method according to claim 1 , wherein the non-metallic layer is positioned in recess spaces formed between the metal layers with variable filling degrees of a maximum of 60%.

3 . The method according to claim 1 , wherein the three dimensional layer is a corrugated metal strip.

4 . The method according to claim 1 , wherein the three dimensional layer is a metal piece in a shape of knobs or nubs on a surface of the three dimensional layer.

5 . The method according to claim 1 , wherein the metal layers are made of a same metal material.

6 . The method according to claim 1 , wherein the metal layers are made of different metal materials.

7 . The method according to claim 6 , wherein the metal layers are made of metals with two different thermal expansion coefficients influencing the thermal expansion of the sandwich panel.

8 . The method according to claim 1 , wherein the metal layers are made of stainless steel or carbon steel.

9 . (canceled)

10 . The method according to claim 1 , wherein the metal layers are made of copper.

11 . The method according to claim 1 , wherein the metal layers are made of aluminium.

12 . The method according to claim 1 , wherein the metal layers are made of magnesium.

13 . The method according to claim 1 , wherein the non-metallic layer is made of a polymer material.

14 . The method according to claim 1 , wherein the non-metallic layer is made of a resin material.

15 . The method according to claim 1 , wherein the non-metallic layer is made of cold or thermosetting one or two component adhesive glue.

16 . The method according to claim 1 , wherein the non-metallic layer is made of a two component sandwich-adhesion material containing resin and hardener.

17 . The method according to claim 1 , wherein the semi-finished sandwich panel is joined, for connecting the semi-finished product to a desired combination of solutions, by welding in a subsequent manufacturing process.

18 . The method according to claim 1 , wherein the semi-finished sandwich panel is joined, for connecting the semi-finished product to a desired combination of solutions, by resistance spot welding in a subsequent manufacturing process.

19 . The method according to claim 1 , wherein the semi-finished sandwich panel is joined, for connecting the semi-finished product to a desired combination of solutions, by resistance roller welding in a subsequent manufacturing process.

20 . The method according to claim 1 , wherein the semi-finished sandwich panel is joined, for connecting the semi-finished product to a desired combination of solutions, by laser or electron beam welding in a subsequent manufacturing process.

21 . The method according to claim 1 , wherein the semi-finished sandwich panel is joined, for connecting the semi-finished product to a desired combination of solutions, by micro-plasma welding in a subsequent manufacturing process.

Assignees

• Outokumpu Oy

Inventors

• Fröhlich Thomas
• Lindner Stefan

Classifications

• B32B3/30

  characterised by a layer formed with recesses or projections, e.g. {hollows, grooves, protuberances, ribs (apertured layer B32B3/266; layer with cavities or internal voids B32B3/26)} · CPC title

• B23K2103/16

  Composite materials · CPC title

• B23K2103/12

  Copper or alloys thereof · CPC title

• B32B37/0084

  Point bonding · CPC title

• B32B37/144

  using layers with different mechanical or chemical conditions or properties, e.g. layers with different thermal shrinkage, layers under tension during bonding (constructional features for tensioning B32B38/1825) · CPC title