WO2019076809A1

WO2019076809A1 - Armor component

Info

Publication number: WO2019076809A1
Application number: PCT/EP2018/078069
Authority: WO
Inventors: Mike PAWLIK
Original assignee: Otto Schnell Gmbh & Co. Kg
Priority date: 2017-10-19
Filing date: 2018-10-15
Publication date: 2019-04-25
Also published as: DE102017009753A1; EP3697566A1

Abstract

The invention relates to armor components which consist of at least one metal base and a coating layer which is welded thereon and which is made of an alloyed steel. The coating layer is applied by means of a welding process in an overlapping, oscillating manner in parallel paths. The components are characterized by a high degree of bullet resistance and a high degree of protection against fragments even with a low total thickness of 9 mm and less. The armor components can be used as protective parts or also as structural parts for vehicles such as military vehicles, passenger cars, ships, boats, airplanes, and drones.

Description

armor member

The invention relates to an armor component which has a high ballistic effectiveness, in particular provides protection against bombardment.

Armor components, sometimes called armor plates, armor plates or materials with ballistic protection, have long been known.

So there are components that consist of only one material, usually a single sheet steel or a steel plate. However, such components generally have a fairly high thickness, i. relatively heavy weight, and they often do not have the sum total of properties that are desired for specific purposes.

Most known armor components are therefore

Composite materials that have a combination of different properties.

These composites are, in principle, made of a composite material consisting of one or more layers of one base material and one or more layers and often having additional modifications.

For example, European Patent 0 247 020 B1 describes an armor plate which has an intermediate layer between the base layer and the overlay layer. The bonding of the layers takes place by plating or composite rolling.

The base material consists e.g. from a steel with the following directional analysis:

0.1 to 0.35 wt% C, 0.10 to 0.7 wt% Si, 0.4 to 1.50 wt% Mn and 0.5 to 2 wt% Cr. The support consists for example of steel of the type 85 Cr Mo 7 with 0.60 wt .-% C, 0.20 to 1.20 wt .-% Si, 0.20 to 2 wt .-% Mn, 0.80 to 2 wt .-% Cr, 0.06 to 1 wt .-% Mo 0.05 to 0.35 wt .-% V, balance iron and steel companion.

DE 10 2013 103 944 A1 describes an armor component and a method for the production thereof, in which a fiber composite material is sprayed on as a support layer. The fiber composite contains short fibers and granules. The granules have a particle size of 100 to 2,500 μιη. The first layer consists of a metallic material, preferably of an armored steel.

In DE OS 27 44 905 a bullet-proof armor plate is described, in the manufacture thereof is applied to a thicker tough base plate at least one support layer of greater hardness. The application layer has been designed to oscillate by means of automatic welding. The order layer is composed of parallel webs that lie next to each other. The joint width between two adjacent layers can vary between zero, that is, when they abut directly, and at a certain distance. It may be advantageous if a covering web is attached over the joints, as can be seen in FIG. 3 in this patent application.

Although numerous armouring components and methods for their production are already known, there is still a need for further developed and advantageous armor components and methods for their production.

The object of the invention is therefore to provide an armor component, which is simple and economical to produce, which has advantageous properties with respect to ballistic effects, both in terms of resistance to the penetration of projectiles and against ballistic effects

Splinter effects, which is versatile and which also has weight advantages over products according to the prior art, both as armor component for application to body parts and as a body part as Such is usable and which can be used in both the civilian and in the military field.

This object is achieved by an armor component which comprises at least one weldable metallic base layer and at least one overlay layer welded there, which is characterized in that the overlay layer is welded in a pendulum manner so that it overlaps in parallel layers.

In a further advantageous embodiment of the invention that consists

An armor component of at least one weldable metallic base layer and at least one support layer welded thereon, which is characterized in that the support layer is made of an alloyed steel having as alloying elements 0.65 to 1.830% C; O, 50 to 1.450% Si; 0.47 to 1.250% Mn, 0.013 to 0.027% P, 0.009 to 0.023% S, 3.310 to 8.740 Cr, 0.754 to 1.990% Mo, 0.010 to 1.274% Ni, 0.193 to 0.510% V, 0.042 to 0.112% Cu, 3.248 to 8.565% Nb, 0.016 to 0.075% Al, 0.008 to 0.061% Ti, 0.769 to 2.028% W.

The base layer is preferably made of steel and the material for the application layer of an alloyed steel.

Advantageously, the armor component according to the invention consists of a

A two-piece composite material of 9 mm thickness has a bullet resistance of Stanag Level 3 according to VPAM Test Guideline APR 2006 Test Level 10.

Advantageous overall thickness of an armor component of a two-part

Composite material 4 to 30 mm, preferably 6 to 10 mm.

Another object of the invention is a method for producing a

Armor component comprising at least one base plate and a welded-on application layer, characterized in that the application layer in parallel paths oscillating overlapping by welding, preferably applied by the metal-active gas welding process. The active gas used is preferably a mixture of argon and carbon dioxide.

As the material for the coating layer, in the production process of the present invention, it is preferable to use an alloyed steel having as alloying components 0.65 to 1.830% of C; O, 50 to 1.450% Si; 0.47 to 1.250% Mn, 0.013 to 0.027% P, 0.009 to 0.023% S, 3.310 to 8.740 Cr, 0.754 to 1.990% Mo, 0.010 to 1.274% Ni, 0.193 to 0.510% V, 0.042 to 0.112% Cu, 3.248 to 8.565% Nb, 0.016 to 0.075% Al, 0.008 to 0.061% Ti, 0.769 to 2.028% W.

The material is preferably used in the form of a weldable wire or ribbon. These can be thicknesses to e.g. 5 mm or less.

Another object of the invention is the use of armor according to the invention as protection in military vehicles such as tanks, armored scout car and the like. But also as shields for cannons, machine guns and the like. Also buildings and fixed facilities can be protected. But also the use of cars, aircraft such as aircraft, Zeppelin, drones and boats, yachts and ships is possible.

Another object of the invention is the use of the armor components as self-supporting structural parts for the construction of the aforementioned objects.

Since the armor parts can be produced according to the invention in small thicknesses, their use is also possible in protective clothing.

The invention closes a considerable security gap. Thus, comparable protection results are already achieved with lower overall thicknesses than is possible with components according to the prior art, resulting in considerable

Weight savings leads. The invention opens up multiple uses.

There are also better results achievable than previously known. The

Processing the components both as protective parts and as structural parts is simple and economical.

The good effectiveness can be achieved both with a bombardment at an angle of 90 ° and with oblique bombardment.

It is also possible to arrange two or more base plates one above the other or alternately with application layers.

The invention is explained in more detail by the following example.

On a metallic weldable base plate with a thickness of 10 mm, a layer is welded in a pendulum overlapping manner with a welding wire in the MAG welding process. The welding wire is a cored wire with the following alloying components:

C 1.380%; N 0.084%, Cr 7.810%; Ni 0.001%, Mn 0.840%: Si 1.630%;

Mo 0.069%; Ti 0.114%; Nb 6.770%; Cu 0.101%; AI 0.031%; B =, 0010%;

V 0, 10%; W 0.050%.

Claims

claims

1. armor component comprising at least one weldable metallic base layer and at least one support layer welded there, characterized

characterized in that the application layer oscillates in parallel layers

is welded overlapping.

2. armor component comprising at least one weldable metallic base layer and at least one Auflageschicht there welded, characterized and the material of the coating layer is an alloyed steel, which is used as alloying elements from 0.65 to 1.830% C; O, 50 to 1.450% Si; 0.47 to 1.250% Mn, 0.013 to 0.027% P, 0.009 to 0.023% S, 3.310 to 8.740 Cr, 0.754 to 1.990% Mo, 0.010 to 1.274% Ni, 0.193 to 0.510% V, 0.042 to 0.112% Cu, 3.248 to 8.565% Nb, 0.016 to 0.075% Al, 0.008 to 0.061% Ti, 0.769 to 2.028% W.

3. armor component according to claim 1 or 2, characterized in that the

Base layer of steel and the application layer consists of an alloyed steel.

4. armor component according to one or more of claims 1 to 3, characterized

in that two or more base layers with two or more application layers are arranged one above the other or in alternation.

5. armor component according to one or more of claims 1 to 3, characterized

characterized in that the armor component as a two-part composite of a thickness of 9 mm has a bullet resistance of Stanag Level 3 according to VPMA Test Guideline APR 2006.

6. armor component according to one or more of claims 1 to 3, which is the

Component in the form of a two-part composite material has a total thickness of 4 to 30 mm, preferably 6 to 10 mm.

7. A method for producing armor components according to one or more of claims 1 to 6, characterized in that applying the coating layer in parallel paths oscillating overlapping by welding.

8. The method according to claim 7, characterized in that applying the coating layer after the metal-active gas welding process.

9. The method according to claim 8, characterized in that one uses as the active gas, a mixture of argon and carbon dioxide.

10. The method according to one or more of claims 7 to 9, that the

Application material used for welding in the form of a wire.

11. The method according to claim 10, characterized in that the wire has a thickness of 5 mm or less.

12. Use of the armor components according to one or more of

Claims 1 to 6 as protection in military vehicles such as tanks,

Armored cars and the like, as gun protection for cannons, machine guns and the like, in cars and trucks, aircraft such as aircraft, drones,

Zeppelins as well as boats, yachts and ships.

13. Use of the armor components according to one or more of claims 1 to 6 as structural parts in the manufacture of military vehicles such as tanks, armored cars, cars, trucks, aircraft such as aircraft, zeppelins drones and boats, yachts and ships.

14. Use of armor components according to one or more of claims 1 to 6 for the protection of buildings and fixed facilities.

15. Use of armor parts according to one or more of claims 1 to 6 for use in protective clothing.