EP1705257A1 - Blindage pour véhicule - Google Patents

Blindage pour véhicule Download PDF

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Publication number
EP1705257A1
EP1705257A1 EP06004684A EP06004684A EP1705257A1 EP 1705257 A1 EP1705257 A1 EP 1705257A1 EP 06004684 A EP06004684 A EP 06004684A EP 06004684 A EP06004684 A EP 06004684A EP 1705257 A1 EP1705257 A1 EP 1705257A1
Authority
EP
European Patent Office
Prior art keywords
component
max
steel
armor
vehicle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP06004684A
Other languages
German (de)
English (en)
Inventor
Markus Müller
Christian Gnass
Wilfried Prof. Dr. Rostek
Thomas Dr. Tröster
Rainer Dr. Lübbers
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Benteler Defense GmbH and Co KG
Original Assignee
Benteler Automobiltechnik GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Benteler Automobiltechnik GmbH filed Critical Benteler Automobiltechnik GmbH
Publication of EP1705257A1 publication Critical patent/EP1705257A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/42—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for armour plate
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H5/00—Armour; Armour plates
    • F41H5/02—Plate construction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H7/00—Armoured or armed vehicles
    • F41H7/02—Land vehicles with enclosing armour, e.g. tanks
    • F41H7/04—Armour construction

Definitions

  • the invention relates to a method for tanking a vehicle with a hardened steel component and a hardened steel component with a wall thickness of 4 to 15 mm for arming a vehicle.
  • Armored steels are low-alloy tempered steels with a high hardness.
  • a steel alloy for a steel armor which is characterized by a low carbon content and by the carbonitride former vanadium.
  • the alloy is expressed as a percentage by mass of 0.15 to 0.2% C, 0.1 to 0.5% Si, 0.7 to 1.7% Mn, ⁇ 0.02% P, ⁇ 0.005% S , ⁇ 0.01% N, 0.009 to 0.1% Al, 0.5 to 1.0% Cr, 0.2 to 0.7% Mo, 1.0 to 2.5% Ni and 0.05 to 0.25% V, remainder iron including unavoidable impurities, which may additionally contain up to 0.005% boron.
  • the alloy has a yield strength of more than 1100 N / mm 2 and a minimum tensile strength of 1250 N / mm 2 . Their elongation at break is more than 10%.
  • Known ballistic steels are ARMOX 500 T, 560 T and 600 T from SSAB or SECURE 400, 450, 500 and 600 from Thyssen Krupp Stahl.
  • each armor steel workpiece is annealed at a temperature above the Curie point for a given soak time to obtain an austenitic structure. Subsequently, the workpiece is cooled at a controlled cooling rate above the formation of martensitic microstructure favorable critical cooling rate and then processed the soft workpiece. Thereafter, the machined workpiece is brought to a temperature above the Curie point and then quenched to restore its hardness.
  • the problem with this method is the distortion of the component due to heating and hardening after machining.
  • accurate dimensional accuracy is crucial in installing such a tank armor component into a vehicle.
  • the DE 197 43 802 C2 describes a method of making a metallic mold component for automotive components having regions of higher ductility.
  • a board is provided of a steel alloy, which is in weight percent of carbon (C) from 0.18% to 0.3%; Silicon (Si) 0.1% to 0.7%; Manganese (Mn) 1.0% to 2.5%; Phosphorus (P) maximum 0.025%; Chromium (Cr) 0.1% to 0.8%; Molybdenum (Mo) 0.1% to 0.5%; Sulfur (S) maximum 0.01%; Titanium (Ti) 0.02% to 0.05%; Boron (B) 0.002% to 0.005%; Aluminum (AL) 0.01% to 0.06% and the balance iron including melting impurities.
  • the named alloy is outstandingly suitable for thermoforming and hardening. For armor purposes, however, the sheet thickness would have to be chosen so strong that the use of the alloy is less interesting for weight reasons.
  • the EP 1 335 036 A1 describes a method of making an aluminum-corrosion protected structural component by piece coating and thermoforming. The aim is to avoid cold forming of the aluminum layer.
  • the DE 102 08 216 C1 describes a method for producing a partially cured component by keeping regions of the component isothermal after austenitization until a transformation into ferrite or pearlite takes place and the areas no longer harden in martensite during the subsequent hardening process.
  • the DE 102 46 164 A1 describes hot stamping of blanks taken from a flexibly rolled strip.
  • the DE 103 07 184 B3 describes the preforming and final forming of a blank from the preform heat without intermediate heating.
  • the DE 100 49 660 A1 describes the thermoforming of a patchwork sheet.
  • the DE 197 23 655 A1 describes the thermoforming of a sheet steel product, wherein the steel in the areas in which it is to be processed, is held by inserts or recesses in the tool in the mild steel region.
  • the DE 100 16 798 A1 discloses an armor for security vehicles, wherein the element according to the invention consists of hot-rolled wear-resistant austenitic manganese steel, which has no randentkohlte layer and is strongly hardening during cold working. According to the method, the edge-decarburized layer formed during hot-rolling is removed on both sides by removal or the adjustment of this layer by the use of protective gas is avoided.
  • the US 5, 458, 704 A shows a hot rolled armor steel which is 0.25 to 0.32% C; 0.05 to 0.75% Si; 0.10 to 1.50% Mn; 0.90 to 2.00% Cr; 0.10 to 0.70% Mo; 1.20 to 4.50% Ni; 0.01 to 0.08% Al; max 0.015% P; max 0.005% S; max 0.012% N; Contains residual iron and impurities caused by melting.
  • This steel is intended for armor with a wall thickness of 50 mm and more.
  • the DE 200 14 361 U1 describes a one-piece thermoformed B-pillar with a high strength upper part and a relatively ductile foot. During production, either parts of the foot are insulated in the oven against austenitization or cooled before curing without reaching the critical cooling rate.
  • the DE 697 07 066 T2 discloses a thermoformed B-pillar with a specially set hardness distribution profile that extends approximately arcuately across the B-pillar, with the highest hardness values being in the middle of the B-pillar.
  • the basic structure of the workpiece is austenitized above the AC 3 temperature.
  • the austenitized steel plate is molded in a tool that may be cooled or uncooled. During the forming process, the heated steel plate is cooled by the heat flow into the tool so that it comes to martensite bainite formation. This will harden the steel.
  • the board To come to a complete curing, the board must be heated to a temperature above 3 AC. If the board is heated less strongly, only a partial microstructure transformation and thus only a partial hardening takes place. Depending on the application, the reduced hardness can also meet the requirements for armor. Decisive are the deformation limits that are significantly extended during the forming steps in the uncured state of the blank, and the accurate, distortion-free final shaping and hardening in the tool.
  • thermoforming and hardening in the tool as mentioned above are known, however, there is no experience with ballistic steels and the associated sheet thicknesses up to 15 mm.
  • the thermoforming properties and forming limits are unknown in the application of this method. It is also unknown to what thicknesses a through hardening of ballistic steels is possible.
  • the armor steel To reward the armor steel, it can be tempered after hardening.
  • armor can be made, which correspond to the final contour of the vehicle to be armored and hardened without distortion until reaching the final contour.
  • bending angles of> 4 ° can be set easily.
  • It can even be made of armor steel structural components even, which in these structural parts such as a B-pillar or a completely deep-drawn door no additional armor is needed. It is therefore possible to replace many small parts welded together by a single component. This reduces the number of welds and the associated security risk and the effort to minimize the security risk again.
  • the single component is characterized by high accuracy, which makes it easy to fit with other components in the vehicle.
  • thermoforming with hardening in the tool only leads to the desired ballistic properties if the finished components have significantly higher hardnesses than in the previously used conventional steels. This means that the steel must be generally recoverable and at the same time have a high level of through hardenability. It was therefore a material to develop, on the one hand has excellent through hardenability as conventional thermoforming steels, and on the other hand has a high hardness in the final state as conventional ballistic steels.
  • the through-cure can be achieved with elements such as e.g. Manganese, molybdenum and chromium are improved.
  • a high hardness can be e.g. Adjust with the elements carbon, silicon and tungsten. Especially tungsten forms very hard carbides and increases the tensile strength, yield strength and toughness.
  • the steel alloy has a hardness of up to 580 HV30.
  • the values of copper and nickel can vary within the specified range. In a preferred embodiment, however, both values are in the ratio 1: 1.
  • the steel alloy according to the invention is suitable by its formability in the soft state and its cooling behavior for an optionally cold preforming and thermoforming combined with a hardening in the tool and at the same time achieves the desired for an armor high degrees of hardness.
  • the steel alloy according to the invention is intended for the armoring of motor vehicles such as, for example, armored passenger cars, in particular by replacing regular body components with armored body components.
  • the invention is not limited thereto.
  • armored personnel carriers and in particular military transport vehicles can be armored with sheet thicknesses around 12 mm easily according to the invention.
  • battle tanks such as the Leopard
  • hot-formed parts made of the steel alloy according to the invention. Usually, these thermoformed parts but because of the large wall thicknesses then tend to be only part of an armor and not represent the entire armor.
  • the armor component according to the invention is described in more detail below with reference to the single FIGURE.
  • the figure shows a thermoformed and hardened component 1 made of a steel armor plate.
  • the component 1 has a sheet thickness 2 of 6.0 mm.
  • the component 1 has at the points 3 to 6 high degrees of deformation. It is bent at points 3, 5 and 6 with an angle> 45 °. At the point 4, an acute angle ⁇ is formed, in addition, the lower boundary line 4a runs obliquely.
  • the component 1 is made in one piece despite the high degree of deformation and has no weld.
  • the required hardness for ballistic protection is given in all places, including in the formed areas 3, 4, 5, 6.
  • the component 1 has been hardened with the final shaping in the tool. It is therefore accurate to measure.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Heat Treatment Of Articles (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
EP06004684A 2005-03-24 2006-03-08 Blindage pour véhicule Withdrawn EP1705257A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005014298A DE102005014298B4 (de) 2005-03-24 2005-03-24 Panzerung für ein Fahrzeug

Publications (1)

Publication Number Publication Date
EP1705257A1 true EP1705257A1 (fr) 2006-09-27

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP06004684A Withdrawn EP1705257A1 (fr) 2005-03-24 2006-03-08 Blindage pour véhicule

Country Status (3)

Country Link
US (1) US7357060B2 (fr)
EP (1) EP1705257A1 (fr)
DE (1) DE102005014298B4 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2093304A1 (fr) * 2008-02-20 2009-08-26 Benteler Automobiltechnik GmbH Blindage pour un véhicule
WO2010045937A3 (fr) * 2008-10-22 2010-07-15 Benteler Automobiltechnik Gmbh Armoire de sécurité
EP2228459A1 (fr) * 2009-02-26 2010-09-15 ThyssenKrupp Steel Europe AG Composant doté de propriétés de résistance variées
WO2011103861A1 (fr) * 2010-02-24 2011-09-01 Benteler Automobiltechnik Gmbh Procédé de fabrication d'un panneau extérieur, procédé de fabrication d'un véhicule automobile blindé et panneau latéral d'un véhicule automobile
WO2012062281A1 (fr) * 2010-11-08 2012-05-18 Benteler Defense Gmbh & Co. Kg Utilisation d'une pièce en acier résistant à l'usure, notamment en tant que charrue d'un engin
EP2807445B1 (fr) * 2012-01-23 2018-06-06 Rheinmetall MAN Military Vehicles GmbH Procédé de production du plancher d'un véhicule protégé contre les mines

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DE102007002678A1 (de) * 2007-01-18 2008-07-24 Bayerische Motoren Werke Aktiengesellschaft Verfahren und Vorrichtung zum Herstellen eines warmumgeformten Blechbauteils
DE102007039993A1 (de) 2007-08-23 2009-02-26 Edag Gmbh & Co. Kgaa Strukturteil für eine Fahrzeug-Panzerung
DE102007039998B4 (de) 2007-08-23 2014-05-22 Benteler Defense Gmbh & Co. Kg Panzerung für ein Fahrzeug
DE102008014914B4 (de) 2007-08-23 2013-07-04 Vps Vehicle Protection Systems Gmbh Strukturteil für eine Fahrzeug-Panzerung
AU2008355101A1 (en) * 2007-12-14 2009-10-29 Alcoa, Inc. Concepts for weldable ballistic products for use in weld field repair and fabrication of ballistic resistant structures
DE102008012720A1 (de) 2008-03-05 2009-09-10 Benteler Automobiltechnik Gmbh Panzerung für ein Fahrzeug
DE102008044693B4 (de) * 2008-08-28 2011-02-24 Benteler Automobiltechnik Gmbh Verfahren zur Herstellung gehärteter Bauteile mit mehrfachem Erwärmen
DE102008054078A1 (de) 2008-10-31 2010-05-06 Daimler Ag Kraftfahrzeugkarosserie aus verschiedenen Stählen
DE102009049584A1 (de) 2009-10-16 2011-04-21 Benteler Automobiltechnik Gmbh Gepanzerter Fahrzeuggrill
DE102009052210B4 (de) * 2009-11-06 2012-08-16 Voestalpine Automotive Gmbh Verfahren zum Herstellen von Bauteilen mit Bereichen unterschiedlicher Duktilität
DE102009053349B4 (de) * 2009-11-17 2014-07-03 Benteler Defense Gmbh & Co. Kg Panzerstahlbauteil
DE102010009184A1 (de) * 2010-02-24 2011-08-25 Benteler Automobiltechnik GmbH, 33102 Scheibenrahmen
DE102011009117A1 (de) * 2010-06-02 2011-12-01 Klaus ACKERMANN Fahrzeugtürsicherheitseinrichtung
DE102011109660B3 (de) * 2011-08-08 2013-01-17 Benteler Defense Gmbh & Co. Kg Formbauteil zu Panzerungszwecken und dessen Herstellungsverfahren
DE102011056444C5 (de) 2011-12-14 2015-10-15 Voestalpine Metal Forming Gmbh Verfahren und Vorrichtung zum partiellen Härten von Blechbauteilen
DE102012001862B4 (de) 2012-02-01 2015-10-29 Benteler Defense Gmbh & Co. Kg Verfahren zur Herstellung eines Panzerungsbauteils und Panzerungsbauteil
DE102012109693B4 (de) 2012-10-11 2018-06-28 Benteler Defense Gmbh & Co. Kg Verwendung einer Stahllegierung zur Herstellung eines Panzerbauteils und Panzerbauteil
DE102012109692A1 (de) 2012-10-11 2014-04-17 Benteler Defense Gmbh & Co. Kg Verwendung einer Stahllegierung zur Herstellung eines Panzerbauteils und Panzerbauteil
US8931390B2 (en) * 2013-02-27 2015-01-13 Sikorsky Aircraft Corporation Ballistic protection material
RU2520247C1 (ru) * 2013-03-01 2014-06-20 Общество с ограниченной ответственностью Научно-производственная фирма "ЛВС" Высокопрочная броневая сталь и способ производства листов из нее
PL3321944T3 (pl) 2014-09-17 2022-07-25 Siemens Energy Global GmbH & Co. KG Kuloodporna instalacja elektryczna
US10030942B2 (en) 2015-02-02 2018-07-24 Tk Armor Systems, L.L.C. Multi-curve steel body armor and method of manufacturing same
DE102019116363A1 (de) 2019-06-17 2020-12-17 Benteler Automobiltechnik Gmbh Verfahren zur Herstellung eines Panzerungsbauteils für Kraftfahrzeuge
DE102019209666B4 (de) 2019-07-02 2020-06-04 Audi Ag Strukturbauteile für Panzerungen
DE102021103999B3 (de) * 2021-02-19 2022-03-24 Benteler Automobiltechnik Gmbh Fahrzeugtür aus einem Panzerstahl

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EP0423004A1 (fr) * 1989-10-09 1991-04-17 Creusot-Loire Industrie Acier de haute dureté pour blindage, procédé d'élaboration d'un tel blindage et blindage obtenu
US5458704A (en) 1992-07-21 1995-10-17 Thyssen Stahl Ag Process for the production of thick armour plates
DE19723655A1 (de) 1996-06-07 1997-12-11 Ssab Hardtech Ab Verfahren zur Herstellung von Stahlblechprodukten
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EP2807445B1 (fr) * 2012-01-23 2018-06-06 Rheinmetall MAN Military Vehicles GmbH Procédé de production du plancher d'un véhicule protégé contre les mines

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US7357060B2 (en) 2008-04-15
US20060213361A1 (en) 2006-09-28
DE102005014298B4 (de) 2006-11-30

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