EP0369543B1 - Hohlladung mit einer metallischen Auskleidung, Verfahren und Vorrichtung zu deren Herstellung - Google Patents

Hohlladung mit einer metallischen Auskleidung, Verfahren und Vorrichtung zu deren Herstellung Download PDF

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Publication number
EP0369543B1
EP0369543B1 EP89202878A EP89202878A EP0369543B1 EP 0369543 B1 EP0369543 B1 EP 0369543B1 EP 89202878 A EP89202878 A EP 89202878A EP 89202878 A EP89202878 A EP 89202878A EP 0369543 B1 EP0369543 B1 EP 0369543B1
Authority
EP
European Patent Office
Prior art keywords
mpa
double
temperature
receptacle
walled
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.)
Expired - Lifetime
Application number
EP89202878A
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German (de)
English (en)
French (fr)
Other versions
EP0369543A1 (de
Inventor
Cu Hai Nguyen
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.)
Schweizerische Eidgenossenschaft
Original Assignee
Schweizerische Eidgenossenschaft
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 Schweizerische Eidgenossenschaft filed Critical Schweizerische Eidgenossenschaft
Publication of EP0369543A1 publication Critical patent/EP0369543A1/de
Application granted granted Critical
Publication of EP0369543B1 publication Critical patent/EP0369543B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/12—Both compacting and sintering
    • B22F3/14—Both compacting and sintering simultaneously
    • B22F3/15—Hot isostatic pressing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B1/00—Explosive charges characterised by form or shape but not dependent on shape of container
    • F42B1/02—Shaped or hollow charges
    • F42B1/032—Shaped or hollow charges characterised by the material of the liner
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
    • B22F2998/10—Processes characterised by the sequence of their steps

Definitions

  • the present invention relates to a shaped charge for penetrating armor composed of layers that deflect a homogeneous shaped charge, consisting of an ammunition body with a rotationally symmetrical, ductile, metallic lining that is positively inserted into the explosive, a method for producing this lining and a device for carrying out the Manufacturing process.
  • Hollow charges have been used against tanks for a long time, which has resulted in the development of a wide variety of countermeasures.
  • the armor was built up in layers from a wide variety of materials of different densities and hardness, so that the homogeneous shaped charge jet was deflected.
  • shaped charges with a lining made of a pseudo-alloy of tungsten and copper have been developed (FR-A-2 530 800).
  • This lining is produced by powder metallurgy by sintering tungsten powder with a grain size of less than 50 ⁇ m and copper powder, the proportion of tungsten being 80% by weight.
  • sintering tungsten powder with a grain size of less than 50 ⁇ m and copper powder, the proportion of tungsten being 80% by weight.
  • such linings have a relatively low density and, particularly in the case of armored layers, have a low penetration capacity, although their deflection is less.
  • the invention is based on the object of creating a shaped charge which shows a high penetration effect in armor which deflect and / or disrupt conventional shaped charge jets.
  • the metallic lining is three-dimensional by means of hot isostatic pressing Has isotropy and whose density corresponds to at least 98% of the crystal density of the metal.
  • the object of the invention is to create a production method and a device for carrying out the method which enable the metallic lining of the shaped charge according to the invention to be produced economically.
  • the device for carrying out the manufacturing process is characterized in that the double-walled container consists of a structural steel, a light metal or a quartz glass, and has a wall thickness of 0.8 to 3.0 mm on all sides.
  • the lining of the shaped charge according to the invention has a texture-free, crystalline Structure that reaches more than 98% of the maximum possible density, the crystal density.
  • the shaped charge according to the invention has the enormous advantage that after the detonation the shaped charge beam penetrates the armor in powder form, i.e. that it has no coherence and is therefore not distracted by a layered armor.
  • the density of the beam is high; It is also possible to use materials that cannot be alloyed or are not accessible to a sintering process.
  • the manufacturing method according to the invention for the metallic linings of shaped charges also has the great advantage that shape and dimensionally accurate production is achieved with a significantly lower material expenditure than with the conventional methods.
  • the production according to the invention is also more economical and less labor-intensive. It has proven useful to shake the double-walled container when filling in the metal powder, so that a homogeneous and compact bed is obtained without gas or air pockets in the intermediate space. The encapsulated metal container is then removed by roughly unscrewing it. However, this can also be done with a laser cutter.
  • the removed lining has a very high dimensional and dimensional accuracy (near net shaping) and therefore only requires a small, usually machining rework for its installation in the ammunition body.
  • the method according to claim 3 brings about a particularly homogeneous, isotropic structure of the compact.
  • the choice of material for the double-walled container according to claim 8 is particularly suitable for hot isostatic pressing with high gas pressures and temperatures.
  • the container 1 consists of a metallic inner cone wall 7 ', a metallic outer cone wall 7' and a filler neck 8.
  • the lower edge of the inner cone wall 7 ' is flanged to the outside and welded to the outer cone wall 7' via a lower weld 9.
  • the filler neck 8 stands on an opening 10 at the tip of the outer cone wall 7 ⁇ and is welded to it via an upper weld seam 11.
  • the container 1 is either made of a light metal alloy from Al and Mn, Al and Mg, or Al, Mg and Si for a HIP temperature range up to 600 ° C, or from a commercially available structural steel, ie with less than 2% carbon, for a HIP -Temperature range from 600 ° C to 1500 ° C, or then made from a high-melting quartz glass for a HIP temperature range from 1500 ° C to 3000 ° C.
  • the thickness of the cone walls 7 'and 7 ⁇ and the filler neck 8 is the same in each case and is between 0.8 mm and 3.0 mm.
  • the wall thickness is selected so that it is on the one hand thick enough to withstand the high pressure of the hot isostatic pressure and on the other hand sufficiently thin to be able to withstand the compression of the metal powder without breaks or warping.
  • the space 12 between the cone walls 7 'and 7 ⁇ must be kept as small as possible.
  • the width of the intermediate space 12 also depends on the material of the double-walled container 1, on the filled metal powder 13 to be compressed and on its bulk density; it is, for example, 2.0 mm for structural steel and copper powder, and 3.0 mm for quartz glass and tungsten powder, corresponding to a wall thickness of 1.2 mm of the hot isostatically pressed workpiece.
  • the cone walls 7 'and 7' are deformed the most in the central area, since the end areas are fixed by the weld seams 9 and 11 and thus the width of the intermediate space 12 will hardly be reduced there.
  • a geometry-dependent safety margin is provided, which will compensate for a deformation of the cone walls 7 'and 7' occurring during hot isostatic pressing.
  • the opening angle of the double-walled container 1 will also open slightly, i.e. by about 1 °. This deformation can be taken into account by an additional widening of the intermediate space 12 or - which is preferred - by a reduction in the opening angle.
  • FIG. 3 shows a double-walled container 1 with a filler neck 8 at the lower end. This is of advantage if a proper filling and compaction on the extremities of the container 1, as here on the cone tip, is required.
  • the container 1 is vibrated, for example, by ultrasound, so that the metal powder 13 filled in is highly compressed in the entire container 1.
  • the rotationally symmetrical container 1 is compressed as little as possible during the hot isostatic pressing. This requirement can be achieved with a container closed on one side, such as the above conical shape or a cylinder shape closed on one side.
  • the conical linings produced in this way are positively inserted into an ammunition body and form with it a shaped charge, the shaped charge jet of which is inhomogeneous.
  • Such shaped charges are now particularly suitable for penetrating armor that is made up of layers of different physical properties and behavior.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Powder Metallurgy (AREA)
EP89202878A 1988-11-17 1989-11-14 Hohlladung mit einer metallischen Auskleidung, Verfahren und Vorrichtung zu deren Herstellung Expired - Lifetime EP0369543B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH4264/88A CH677530A5 (cs) 1988-11-17 1988-11-17
CH4264/88 1988-11-17

Publications (2)

Publication Number Publication Date
EP0369543A1 EP0369543A1 (de) 1990-05-23
EP0369543B1 true EP0369543B1 (de) 1992-09-09

Family

ID=4272894

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89202878A Expired - Lifetime EP0369543B1 (de) 1988-11-17 1989-11-14 Hohlladung mit einer metallischen Auskleidung, Verfahren und Vorrichtung zu deren Herstellung

Country Status (6)

Country Link
US (1) US5119729A (cs)
EP (1) EP0369543B1 (cs)
AU (1) AU621684B2 (cs)
CH (1) CH677530A5 (cs)
DE (1) DE58902252D1 (cs)
IL (1) IL92206A0 (cs)

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US5221808A (en) * 1991-10-16 1993-06-22 Schlumberger Technology Corporation Shaped charge liner including bismuth
SE470211B (sv) * 1992-04-10 1993-12-06 Bofors Explosives Ab Sätt att tillföra exotermt reagerande metalltillsatser till explosivämnen och i enlighet därmed framställda sprängämnen
US5279228A (en) * 1992-04-23 1994-01-18 Defense Technology International, Inc. Shaped charge perforator
US5523048A (en) * 1994-07-29 1996-06-04 Alliant Techsystems Inc. Method for producing high density refractory metal warhead liners from single phase materials
US5656791A (en) * 1995-05-15 1997-08-12 Western Atlas International, Inc. Tungsten enhanced liner for a shaped charge
NO963009L (no) * 1995-07-27 1997-01-28 Western Atlas Int Inc Formet ladning
US5859383A (en) * 1996-09-18 1999-01-12 Davison; David K. Electrically activated, metal-fueled explosive device
US6152040A (en) * 1997-11-26 2000-11-28 Ashurst Government Services, Inc. Shaped charge and explosively formed penetrator liners and process for making same
US6354219B1 (en) * 1998-05-01 2002-03-12 Owen Oil Tools, Inc. Shaped-charge liner
US6634300B2 (en) * 2000-05-20 2003-10-21 Baker Hughes, Incorporated Shaped charges having enhanced tungsten liners
US6530326B1 (en) * 2000-05-20 2003-03-11 Baker Hughes, Incorporated Sintered tungsten liners for shaped charges
US7011027B2 (en) 2000-05-20 2006-03-14 Baker Hughes, Incorporated Coated metal particles to enhance oil field shaped charge performance
US6564718B2 (en) * 2000-05-20 2003-05-20 Baker Hughes, Incorporated Lead free liner composition for shaped charges
US7032809B1 (en) * 2002-01-18 2006-04-25 Steel Ventures, L.L.C. Seam-welded metal pipe and method of making the same without seam anneal
US7278354B1 (en) 2003-05-27 2007-10-09 Surface Treatment Technologies, Inc. Shock initiation devices including reactive multilayer structures
US7278353B2 (en) * 2003-05-27 2007-10-09 Surface Treatment Technologies, Inc. Reactive shaped charges and thermal spray methods of making same
US9499895B2 (en) 2003-06-16 2016-11-22 Surface Treatment Technologies, Inc. Reactive materials and thermal spray methods of making same
US20050115448A1 (en) * 2003-10-22 2005-06-02 Owen Oil Tools Lp Apparatus and method for penetrating oilbearing sandy formations, reducing skin damage and reducing hydrocarbon viscosity
US9095885B2 (en) 2007-08-06 2015-08-04 H.C. Starck Inc. Refractory metal plates with improved uniformity of texture
US12203350B2 (en) 2013-07-18 2025-01-21 DynaEnergetics Europe GmbH Detonator positioning device
US9702680B2 (en) 2013-07-18 2017-07-11 Dynaenergetics Gmbh & Co. Kg Perforation gun components and system
RU2662840C2 (ru) 2013-08-26 2018-07-31 Динаэнергетикс Гмбх Унд Ко. Кг Скважинный перфоратор и детонаторный блок
GB201401644D0 (en) * 2014-01-31 2014-03-19 Alford Res Ltd Improvements in or relating to linear shaped charges
CA2941648C (en) 2014-03-07 2022-08-16 Dynaenergetics Gmbh & Co. Kg Device and method for positioning a detonator within a perforating gun assembly
WO2015157421A1 (en) * 2014-04-11 2015-10-15 H.C. Starck Inc. High purity refractory metal sputtering targets which have a uniform random texture manufactured by hot isostatic pressing high purity refractory metal powders
US11021923B2 (en) 2018-04-27 2021-06-01 DynaEnergetics Europe GmbH Detonation activated wireline release tool
US10458213B1 (en) 2018-07-17 2019-10-29 Dynaenergetics Gmbh & Co. Kg Positioning device for shaped charges in a perforating gun module
US11808093B2 (en) 2018-07-17 2023-11-07 DynaEnergetics Europe GmbH Oriented perforating system
USD1034879S1 (en) 2019-02-11 2024-07-09 DynaEnergetics Europe GmbH Gun body
USD1010758S1 (en) 2019-02-11 2024-01-09 DynaEnergetics Europe GmbH Gun body
USD1019709S1 (en) 2019-02-11 2024-03-26 DynaEnergetics Europe GmbH Charge holder
CZ310188B6 (cs) 2019-12-10 2024-11-06 DynaEnergetics Europe GmbH Sestava orientovatelné prorážecí trysky a způsob její orientace
US11480038B2 (en) 2019-12-17 2022-10-25 DynaEnergetics Europe GmbH Modular perforating gun system
GB202002540D0 (en) 2020-02-24 2020-04-08 Rolls Royce Plc Isostatic pressing canister
US11732556B2 (en) 2021-03-03 2023-08-22 DynaEnergetics Europe GmbH Orienting perforation gun assembly
SE545269C2 (en) * 2021-04-23 2023-06-13 Saab Ab Liner for a shaped charge and method for manufacturing a liner
DE102021006196B4 (de) 2021-12-16 2025-05-28 Diehl Defence Gmbh & Co. Kg Verfahren zur Herstellung einer Einlage für eine Hohlladung
US11753889B1 (en) 2022-07-13 2023-09-12 DynaEnergetics Europe GmbH Gas driven wireline release tool
WO2024013338A1 (en) 2022-07-13 2024-01-18 DynaEnergetics Europe GmbH Gas driven wireline release tool

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US2725288A (en) * 1952-08-26 1955-11-29 Harry W Dodds Process and apparatus for fabricating metallic articles
US3388663A (en) * 1964-04-30 1968-06-18 Pollard Mabel Shaped charge liners
SE394178B (sv) * 1975-02-03 1977-06-13 Asea Ab Forfarande for varmpressning av pulverkroppar
US4551287A (en) * 1978-03-30 1985-11-05 Rheinmetall Gmbh Method of making a hollow-charge inserts for armor-piercing projectiles
GB1566858A (en) * 1978-05-11 1980-05-08 Secr Defence Isostatic pressing
FR2528743A1 (fr) * 1982-06-18 1983-12-23 Commissariat Energie Atomique Procede et dispositif de fabrication de pieces minces de forme complexe par compaction isostatique a chaud
DE3323991A1 (de) * 1983-07-02 1989-06-08 Juergen Wisotzki Trichter- oder schalenfoermige einlage fuer hohlladungen sowie verfahren und form zu deren herstellung
DE3336516C2 (de) * 1983-10-07 1985-09-05 Bayerische Metallwerke GmbH, 7530 Pforzheim Auskleidung und Belegung für Hohl-, Flach- und Projektilladungen
US4860655A (en) * 1985-05-22 1989-08-29 Western Atlas International, Inc. Implosion shaped charge perforator
US4860654A (en) * 1985-05-22 1989-08-29 Western Atlas International, Inc. Implosion shaped charge perforator
US4766813A (en) * 1986-12-29 1988-08-30 Olin Corporation Metal shaped charge liner with isotropic coating
DE3705382A1 (de) * 1987-02-20 1988-09-01 Diehl Gmbh & Co Penetrator und verfahren zu seiner herstellung
AU2317488A (en) * 1988-08-02 1990-03-05 Uddeholm Tooling Aktiebolag Process for making a consolidated body

Also Published As

Publication number Publication date
US5119729A (en) 1992-06-09
DE58902252D1 (de) 1992-10-15
EP0369543A1 (de) 1990-05-23
IL92206A0 (en) 1990-07-26
AU4531489A (en) 1990-05-24
CH677530A5 (cs) 1991-05-31
AU621684B2 (en) 1992-03-19

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