EP2069707B1 - Metallformkörper und Verfahren zur Herstellung eines Metallformkörpers - Google Patents

Metallformkörper und Verfahren zur Herstellung eines Metallformkörpers Download PDF

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Publication number
EP2069707B1
EP2069707B1 EP07763727A EP07763727A EP2069707B1 EP 2069707 B1 EP2069707 B1 EP 2069707B1 EP 07763727 A EP07763727 A EP 07763727A EP 07763727 A EP07763727 A EP 07763727A EP 2069707 B1 EP2069707 B1 EP 2069707B1
Authority
EP
European Patent Office
Prior art keywords
metal
mold
molded
metal foam
foam
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.)
Not-in-force
Application number
EP07763727A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2069707A1 (de
Inventor
Franz Dobesberger
Herbert J. Flankl
Dietmar Leitlmeier
Jörg WELLNITZ
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.)
Huette Klein Reichenbach GmbH
Original Assignee
Huette Klein Reichenbach 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 Huette Klein Reichenbach GmbH filed Critical Huette Klein Reichenbach GmbH
Priority to SI200730322T priority Critical patent/SI2069707T1/sl
Publication of EP2069707A1 publication Critical patent/EP2069707A1/de
Application granted granted Critical
Publication of EP2069707B1 publication Critical patent/EP2069707B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D25/00—Special casting characterised by the nature of the product
    • B22D25/005—Casting metal foams
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/08—Alloys with open or closed pores
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D19/00—Casting in, on, or around objects which form part of the product
    • B22D19/02—Casting in, on, or around objects which form part of the product for making reinforced articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D25/00—Special casting characterised by the nature of the product
    • B22D25/06—Special casting characterised by the nature of the product by its physical properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
    • B22D27/09—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting by using pressure
    • B22D27/13—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting by using pressure making use of gas pressure
    • 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
    • F41H5/04—Plate construction composed of more than one layer
    • F41H5/0442—Layered armour containing metal
    • F41H5/0457—Metal layers in combination with additional layers made of fibres, fabrics or plastics
    • 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
    • F41H5/04—Plate construction composed of more than one layer
    • F41H5/0492—Layered armour containing hard elements, e.g. plates, spheres, rods, separated from each other, the elements being connected to a further flexible layer or being embedded in a plastics or an elastomer matrix
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/08—Alloys with open or closed pores
    • C22C1/083—Foaming process in molten metal other than by powder metallurgy
    • C22C1/086—Gas foaming process
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12479—Porous [e.g., foamed, spongy, cracked, etc.]

Definitions

  • the subject invention relates to a multilayer metal molded body with a metal foam matrix, in which a one- or multi-part insert element is embedded, wherein the metal foam matrix and the insert element are positively connected to each other, and a method for producing such a metal molding.
  • Such a metal molded body is eg from the DE 20313 655 U1 which discloses an aluminum foam bullet resistant member having a net-like reinforcement embedded in the aluminum foam, the reinforcement being formed as a mesh or woven fabric of a steel wire.
  • a mesh is a braid in which a plurality of continuous wires are connected to a braid. The contact points between the individual wires can be rigid or loose. Under bombardment, these continuous wires are subjected to high tensile stresses and strains by the projectile or projectile to be stopped, so that either a high-strength and high-tensile steel wire is required, or the steel wire must be dimensioned accordingly. Although a good shot resistance can be achieved thereby, the cost of such a metal molding can be driven upwards.
  • the object of the present invention is thus to provide a metal mold body which does not have the above disadvantages and moreover an even better strength against penetrating or impacting bodies, such as impact of a body, e.g. by an obvious explosion, or by a projectile possesses.
  • the insert element is designed as a push-soft ring mesh with loosely connected rings.
  • An inventive method for producing a multilayer metal molded article is characterized by the following steps: providing a mold for the metal molding; Arranging at least one single or multi-part insert element in the form of a push soft ring mesh with loosely connected rings in the mold; Melting a metal; Introducing gas into the molten metal to foam the molten metal to produce a flowable metal foam; Introducing the flowable metal foam into the mold; and cooling the metal in the mold, wherein the metal solidifies to form the metal mold.
  • a metal molding according to the invention thus a very lightweight component with the highest bullet class B7 can be achieved.
  • a metal molding can be used, for example, as armor for vehicles or buildings, but also as a shield for persons.
  • the effect can be further increased if in the metal foam matrix a plurality of annular braids are arranged next to or behind each other, wherein the ring braids can also be arranged offset to one another.
  • the metal foam matrix may have a substantially monomodal bubble size distribution.
  • the bubble sizes of the metal foam matrix may also gradually increase from one side surface of the metal molding to the opposite side surface, whereby the strength of the metal molding can be further increased.
  • a further increase in the strength of the metal molding is achieved by a bias of the ring mesh in the metal foam matrix.
  • a further layer of a homogeneous and / or isotropic material such as a stone foil is applied to a side surface of the metal molded body, since this breaks up the impacting projectile and changes the path of the projectile and thus its effect is reduced. For such an application, it is convenient to turn this layer to the bombardment.
  • Fig. 1 shows a rigid, sheet-like, multilayer metal shaped body 1, wherein the length, height and width ratios are advantageously selected according to the relationship 1, h >> b, with which one obtains a flat metal shaped body 1 with a large-area side surface 2.
  • the metal shaped body 1 can be designed as a plate, disc or shell with any curvature and with any cross-section.
  • the metal molded body 1 consists essentially of a metal foam matrix 4, preferably aluminum foam, in which one or more single or multi-part insert elements 3 are embedded. Metal foam 4 and insert element (s) 3 are positively connected with each other and form a composite part. Due to the nature of the production of the metal shaped body 1 (by a casting method), it can also come through the adhesion to a certain material connection, but only to about max. 30% based on the breaking strength and pullout strength.
  • the insert elements 3 can be arranged almost arbitrarily, as in the FIGS. 2 to 4 indicated. For example, only a single insert element 3 may be provided at the edge or in the middle of the metal molding 1. However, it is also possible for a plurality of insert elements 3 arranged next to one another or one behind the other to be provided. Likewise, it is conceivable not to arrange insert elements 3 substantially parallel to a side surface 2, but at a certain angle thereto. Exactly so can be provided to bias one or more insert element (s) 3 before embedding in the metal foam matrix 4 with a certain force F.
  • an additional layer 5 made of a homogeneous and / or isotropic material can be applied to a side surface 2 by a suitable method, such as eg by material bond or material closure by a surface bonding, preferably a thin stone film, for example of granite or the like.
  • This layer 5 has a positive effect in particular when used as a shot-resistant rigid molded part, since this increases the permissible firing class and the blasting effect can be reduced or even eliminated.
  • This layer 5 is to turn to the bombardment.
  • By such a layer 5 is a The impacting bullet is broken open and the trajectory of the bullet is changed (essentially by spinning it on impact), thus reducing the effect.
  • a possible inventive shaped metal body 1 could be formed from an aluminum (or other suitable metal) metal foam matrix 4, in which a ring mesh of steel, titanium, or aluminum rings is embedded.
  • the rings can have an outside diameter of 3 - 20mm (depending on the application) and the bubble size of the metal foam matrix 4 is chosen depending on the application, eg up to 30mm bubble size.
  • the ring thicknesses can be chosen between 1 and 2mm, for example.
  • the ring mesh may also be surface treated and cured.
  • the bias of a ring mesh in the metal foam matrix 4 may be for example 1 kN.
  • Such an arrangement is suitable as a shot-resistant metal molding for 1 kg TNT at 5m distance or 15kg plastic explosive at 15m distance.
  • Fig. 7 describes by way of example the production of a metal molding 1 according to the invention.
  • a two-part mold 10 In a two-part mold 10, one or more, single or multi-part insert element (s) 3 in the form of a push-soft ring mesh with loosely connected rings 6 in the desired position within a cavity 12, which dictates the outer shape of the metal molding arranged.
  • the insert element 3 can also be biased with a certain force.
  • metal eg aluminum
  • the cavity 12 of the mold 10 is connected to the furnace 14 via a filler opening 11 and a filler 13 (or similar device).
  • the filler 13 dips into the liquid metal bath 16 in the oven 14.
  • a foaming device 18, such as a nozzle arrangement or an impeller is further provided.
  • Suitable foaming devices and foaming processes are, for example, in the patents EP 1 288 320 B1 and EP 1 419 835 B1 the applicant described.
  • the foaming device 18 is supplied via a feed line 20 gas, preferably air, which exits via the foaming device 18 into the liquid metal bath 16 and forms bubbles 22 in the metal bath. These bubbles 22 rise in the metal bath 16 and in the filler 13 (indicated by the arrow in FIG Fig. 7 In this way, the foaming process is carried out until the entire cavity 12 is filled with bubbles 22 or with metal foam 4.
  • the metal foam can be pressed into the cavity 12 of the mold 10, for example by a pressure on the metal bath 16 is applied.
  • the insert part (s) 3 is surrounded, at least partially, but preferably completely, with liquid metal foam and embedded in the metal foam matrix 4.
  • liquid metal foam and embedded in the metal foam matrix 4.
  • necessary vents between mold 10 or the oven 14 and the outside world may be provided to effect a pressure equalization during filling.
  • the cavity 12 can be closed and the mold 10 can be removed for cooling.
  • metal foam can be produced in a separate device, such as a furnace 14, e.g. according to conventional known methods, and this metal foam with a suitable device, such. a creator or a trowel, are conveyed to a separate mold 10. There, the liquid metal foam can be filled in the cavity 12 of the mold 10. This can e.g. take place, in which the liquid metal foam is pressed in the cavity 12 of the mold, e.g. by means of a stamp.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Metallurgy (AREA)
  • Laminated Bodies (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
  • Telephone Function (AREA)
  • Forging (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
EP07763727A 2006-10-05 2007-07-02 Metallformkörper und Verfahren zur Herstellung eines Metallformkörpers Not-in-force EP2069707B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI200730322T SI2069707T1 (sl) 2006-10-05 2007-07-02 Kovinski ulitek in postopek izdelave kovinskega ulitka

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0167006A AT504305B1 (de) 2006-10-05 2006-10-05 Mehrschichtiger metallformkírper mit einer metallschaummatrix und dessen verwendung
PCT/AT2007/000327 WO2008040035A1 (de) 2006-10-05 2007-07-02 Metallformkörper und verfahren zur herstellung eines metallformkörpers

Publications (2)

Publication Number Publication Date
EP2069707A1 EP2069707A1 (de) 2009-06-17
EP2069707B1 true EP2069707B1 (de) 2010-06-23

Family

ID=38683581

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07763727A Not-in-force EP2069707B1 (de) 2006-10-05 2007-07-02 Metallformkörper und Verfahren zur Herstellung eines Metallformkörpers

Country Status (10)

Country Link
US (2) US20100107860A1 (zh)
EP (1) EP2069707B1 (zh)
CN (1) CN101356416B (zh)
AT (2) AT504305B1 (zh)
DE (1) DE502007004210D1 (zh)
ES (1) ES2347604T3 (zh)
PT (1) PT2069707E (zh)
RU (1) RU2375668C1 (zh)
SI (1) SI2069707T1 (zh)
WO (1) WO2008040035A1 (zh)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9093195B1 (en) * 2010-02-26 2015-07-28 Southwire Company, Llc Rugged cable
US9033024B2 (en) * 2012-07-03 2015-05-19 Apple Inc. Insert molding of bulk amorphous alloy into open cell foam
JP2016503575A (ja) * 2012-09-28 2016-02-04 ダウ グローバル テクノロジーズ エルエルシー 無線通信タワー用の発泡金属コンポーネント
WO2016100598A1 (en) * 2014-12-19 2016-06-23 Maynard Steel Casting Company Steel foam and method for manufacturing steel foam
US10788294B2 (en) * 2015-02-01 2020-09-29 Mitigation 3, LLC Ballistic resistant laminate panel
DE102015103935A1 (de) * 2015-03-17 2016-09-22 Rheinmetall Landsysteme Gmbh Schutzaufbau für ein gepanzertes Fahrzeug
CN106639017A (zh) * 2016-10-08 2017-05-10 中石化上海工程有限公司 一种砌体抗爆墙
CN109029115B (zh) * 2018-09-10 2020-12-29 叶宇擎 一种复合连环甲

Family Cites Families (16)

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Publication number Priority date Publication date Assignee Title
US3087807A (en) * 1959-12-04 1963-04-30 United Aircraft Corp Method of making foamed metal
JPS5483624A (en) * 1977-12-16 1979-07-03 Hitachi Ltd Production of three dimentional net like porous metal having continuous voids
CN2066243U (zh) * 1990-05-31 1990-11-28 泰州市玻璃纤维厂 警用防暴头盔
DE4101630A1 (de) * 1990-06-08 1991-12-12 Fraunhofer Ges Forschung Verfahren zur herstellung aufschaeumbarer metallkoerper und verwendung derselben
WO1992021457A1 (en) * 1991-05-31 1992-12-10 Alcan International Limited Process and apparatus for producing shaped slabs of particle stabilized foamed metal
AT408317B (de) * 1998-04-09 2001-10-25 Mepura Metallpulver Verfahren zur herstellung von schaummetall-formkörpern
NO311708B1 (no) * 2000-02-25 2002-01-14 Cymat Corp Fremgangsmåte og utstyr for tildannelse av stöpte produkter
EP1311798A4 (en) * 2000-08-16 2006-11-22 Second Chance Armor Inc MULTIPLE EMBROIDERY AND RESISTANT CLOTHING AND RELATED METHOD
DE10153165A1 (de) * 2001-10-27 2003-05-08 Joerg Wellnitz Kettengeflecht in integrierter Bauweise mit formgebenden und energieabsorbierendem Matrixsystem (KM-Verbund)
CN1639364A (zh) * 2002-02-01 2005-07-13 赛麦特公司 浇铸金属泡沫的设备及方法
DE20202402U1 (de) * 2002-02-15 2002-06-06 profistyle KAYSER GmbH, 30952 Ronnenberg Stichschutzeinlage zur Verwendung in Schutzbekleidung
AT411768B (de) * 2002-09-09 2004-05-25 Huette Klein Reichenbach Gmbh Verfahren und vorrichtung zur herstellung von fliessfähigem metallschaum
US20050005762A1 (en) * 2003-02-10 2005-01-13 Lujan Dardo Bonaparte Armored assembly
DE20313655U1 (de) * 2003-09-03 2003-12-18 Gleich, Günter Schussfestes Element
EP1756509A4 (en) * 2004-04-05 2011-01-05 George C Tunis Iii SHIELD PLATE SYSTEM
AT503824B1 (de) * 2006-07-13 2009-07-15 Huette Klein Reichenbach Gmbh Metallformkörper und verfahren zu dessen herstellung

Also Published As

Publication number Publication date
AT504305B1 (de) 2009-09-15
ES2347604T3 (es) 2010-11-02
US20160024618A1 (en) 2016-01-28
RU2375668C1 (ru) 2009-12-10
CN101356416B (zh) 2012-09-26
AT504305A1 (de) 2008-04-15
PT2069707E (pt) 2010-08-20
WO2008040035A1 (de) 2008-04-10
ATE472081T1 (de) 2010-07-15
SI2069707T1 (sl) 2010-11-30
US20100107860A1 (en) 2010-05-06
EP2069707A1 (de) 2009-06-17
DE502007004210D1 (de) 2010-08-05
CN101356416A (zh) 2009-01-28

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