EP0014400B1 - Multisectional liner for linear, roof-shaped, hollow charges - Google Patents

Multisectional liner for linear, roof-shaped, hollow charges Download PDF

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Publication number
EP0014400B1
EP0014400B1 EP80100409A EP80100409A EP0014400B1 EP 0014400 B1 EP0014400 B1 EP 0014400B1 EP 80100409 A EP80100409 A EP 80100409A EP 80100409 A EP80100409 A EP 80100409A EP 0014400 B1 EP0014400 B1 EP 0014400B1
Authority
EP
European Patent Office
Prior art keywords
shaped
roof
liner
inserts
multisectional
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
Application number
EP80100409A
Other languages
German (de)
French (fr)
Other versions
EP0014400A3 (en
EP0014400A2 (en
Inventor
Wilhelm Grosse-Benne
Paul Beermann
Adolf Weber
Paul Sindermann
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.)
Diehl Verwaltungs Stiftung
Original Assignee
Diehl GmbH and Co
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 Diehl GmbH and Co filed Critical Diehl GmbH and Co
Publication of EP0014400A2 publication Critical patent/EP0014400A2/en
Publication of EP0014400A3 publication Critical patent/EP0014400A3/en
Application granted granted Critical
Publication of EP0014400B1 publication Critical patent/EP0014400B1/en
Expired legal-status Critical Current

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Classifications

    • 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
    • F42B1/028—Shaped or hollow charges characterised by the form of the liner
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/007—Explosive cutting or perforating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F3/00—Severing by means other than cutting; Apparatus therefor
    • B26F3/04—Severing by squeezing

Definitions

  • Cutting charges are used, for example, to cut through iron plates, cables, bridge girders.
  • Cutting charges are symmetrical shaped charges.
  • the cutting charges are equipped with a cavity, which unfold their preferential effect in the plane of symmetry.
  • Cutting loads with a roof-shaped or semicircular insert are mainly used for military use.
  • DE-A-1946959 relates to a shaped charge with ogival deposits of progressive or degressive wall thickness. This insert is made in one piece.
  • the object of the invention is to provide a precise, precise insert in order to improve the cutting performance of cutting loads and to simplify manufacture and for inexpensive manufacture, in which no residues of the insert are present in the cut after blasting and where the deposits ultimately are accurate and economical are cheap to produce. Furthermore, these metal inserts must also be able to be installed quickly and precisely in the cutting charge housing.
  • the advantages of the invention are that the cutting performance is increased significantly, no remaining components of the insert remain in the cut after the explosion, the insert can be manufactured precisely and precisely, is inexpensive to manufacture and can be easily and conveniently installed in the cutting charge housing .
  • an explosive insert 1 is provided with a recess 2, on the surfaces 3, 4 of which plate-shaped inserts 5, 6 are glued.
  • the inserts 5, 6 consist of electrolytic copper. On the gable side, they lie against one another with the surfaces 7, 8.
  • the insert 14 and 15 according to FIG. 2 have an insert shape according to the invention with a sinusoidal cross section and different material thickness.
  • a cut 30 according to FIG. 3 which can be achieved by the insert described above with an explosive insert and a housing with an ignition device not described here shows the increase in performance compared to a cut 31 achievable by the prior art in a target block 32 according to FIG. 4.

Description

Die Erfindung bezieht sich auf mehrteilige Einlagen für dachförmige Schneidladungen nach dem Oberbegriff des Anspruches.The invention relates to multi-part inserts for roof-shaped cutting loads according to the preamble of the claim.

Schneidladungen dienen beispielsweise zum Durchtrennen von Eisenplatten, Kabeln, Brückenträgern. Schneidladungen sind ebensymmetrische Hohlladungen. Die Schneidladungen sind mit einem Hohlraum ausgestattet, die ihre Vorzugswirkung in der Symmetrieebene entfalten. Für militärischen Einsatz werden hauptsächlich Schneidladungen mit dach- oder halbrundförmiger Einlage angewendet.Cutting charges are used, for example, to cut through iron plates, cables, bridge girders. Cutting charges are symmetrical shaped charges. The cutting charges are equipped with a cavity, which unfold their preferential effect in the plane of symmetry. Cutting loads with a roof-shaped or semicircular insert are mainly used for military use.

Aus der US-A-2758543 ist ein Gerät bekannt, bei dem der Schneidladungseffekt angewendet ist. In einer Ausnehmung eines Gehäuses sind zweiteilige, gewalzte Einlagen angeordnet, hinter denen jeweils explosives Pulver angeordnet ist. Dieses Pulver wird über eine Zündschnur gezündet. Ein unterschiedlicher Querschnitt der Einlagen ist nicht offenbart. Die Einlagen bilden jedoch entlang des Firstes eine in Schnittrichtung geschlossene Stossfuge.From US-A-2758543 a device is known in which the cutting charge effect is applied. Two-part, rolled inserts are arranged in a recess of a housing, behind which explosive powder is arranged in each case. This powder is ignited using a fuse. A different cross section of the inserts is not disclosed. However, the inserts form a butt joint along the ridge in the cutting direction.

Die DE-A-1946959 bezieht sich auf eine Hohlladung mit ogivalen Einlagen progressiver oder degressiver Wandstärke. Diese Einlage ist einstückig ausgebildet.DE-A-1946959 relates to a shaped charge with ogival deposits of progressive or degressive wall thickness. This insert is made in one piece.

Für Schneidladungen sind die Einlagen aufgrund ihrer grösseren Dimension nur mit relativ grossem Fertigungsaufwand herzustellen.Due to their larger dimensions, the inserts for cutting loads can only be produced with a relatively large manufacturing effort.

Aus einem Forschungsbericht (Criteria for jet formation from impinging shells and plates» vom Juli 1976 der Drexel University, Philadelphia, Pennsylvania 19104 sind Einlagen gleichen Querschnitts bekannt.Deposits of the same cross-section are known from a research report (Criteria for jet formation from impinging shells and plates »from July 1976 by Drexel University, Philadelphia, Pennsylvania 19104.

Aus der DE-A-2724036 sind Schneidladungen mit dachförmigen Einlagen mit gerundetem First und in Richtung auf ihre freien Enden zunehmender Dicke bekannt.From DE-A-2724036, cutting loads with roof-shaped inserts with a rounded ridge and increasing thickness towards their free ends are known.

Aufgabe der Erfindung ist es, zur Verbesserung der Schnittleistung bei Schneidladungen und zur Vereinfachung der Fertigung und zur preisgünstigen Herstellung eine präzise genaue Einlage zu schaffen, bei der nach erfolgter Sprengung keine Überreste der Einlage im Schnitt vorhanden sind und wo letzten Endes die Einlagen genau und wirtschaftlich billig herstellbar sind. Weiterhin müssen diese Metalleinlagen auch schnell und genau in die Schneidladungsgehäuse montiert werden können.The object of the invention is to provide a precise, precise insert in order to improve the cutting performance of cutting loads and to simplify manufacture and for inexpensive manufacture, in which no residues of the insert are present in the cut after blasting and where the deposits ultimately are accurate and economical are cheap to produce. Furthermore, these metal inserts must also be able to be installed quickly and precisely in the cutting charge housing.

Auch dies ist von besonderer Wichtigkeit, da wegen der zu erreichenden Schnittiefen man auch vorgepresste oder vorgegossene Sprengstoffeinsätze mit hoher Dichte verwenden kann, die mit der Metalleinlage homogen verklebt werden.This is also of particular importance because, due to the depth of cut to be achieved, it is also possible to use pre-pressed or pre-cast explosive inserts with high density, which are homogeneously glued to the metal insert.

Die gestellte Aufgabe wird nach dem kennzeichnenden Teil des Anspruches gelöst.The task is solved according to the characterizing part of the claim.

Die mit der Erfindung ezielten Vorteile bestehen darin, dass die Schnittleistung wesentlich erhöht wird, keine Restbestandteile der Einlage nach der Sprengung im Schnitt sitzen bleiben, die Einlage genau und präzise gefertigt werden kann, preisgünstig herstellbar ist und einfach und bequem in das Schneidladungsgehäuse eingebaut werden kann.The advantages of the invention are that the cutting performance is increased significantly, no remaining components of the insert remain in the cut after the explosion, the insert can be manufactured precisely and precisely, is inexpensive to manufacture and can be easily and conveniently installed in the cutting charge housing .

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt. Es zeigt:

  • Fig. 1 eine Schneidladung mit an sich bekannter dachförmiger Einlage;
  • Fig. 2 eine in Form einer Sinuskurve verlaufende Einlage;
  • Fig. 3 Darstellung eines Zielblockes mit optimalem Schnitt;
  • Fig. 4 Darstellung eines Zielblockes mit Einlagenresten im Schnitt.
An embodiment of the invention is shown in the drawing. It shows:
  • 1 shows a cutting load with a roof-shaped insert known per se;
  • 2 shows an insert running in the form of a sine curve;
  • Fig. 3 representation of a target block with optimal cut;
  • Fig. 4 representation of a target block with deposits left in section.

Nach Fig. 1 ist ein Sprengstoffeinsatz 1 mit einer Ausnehmung 2 versehen, an deren Flächen 3, 4 plattenförmige Einlagen 5, 6 angeklebt sind. Die Einlagen 5, 6 bestehen aus Elektrolytkupfer. Giebelseitig liegen sie mit den Flächen 7, 8 aneinander an.According to FIG. 1, an explosive insert 1 is provided with a recess 2, on the surfaces 3, 4 of which plate-shaped inserts 5, 6 are glued. The inserts 5, 6 consist of electrolytic copper. On the gable side, they lie against one another with the surfaces 7, 8.

Eine erfindungsgemässe Einlagen-Form mit sinusförmigem Querschnitt und unterschiedlicher Materialdicke weisen die Einlagen 14 und 15 nach der Fig. 2 auf.The insert 14 and 15 according to FIG. 2 have an insert shape according to the invention with a sinusoidal cross section and different material thickness.

Eine durch die vorbeschriebene Einlage mit Sprengstoffeinsatz und hier nicht beschriebenem Gehäuse mit Zündeinrichtung erzielbarer Schnitt 30 nach Fig. 3 zeigt die Leistungssteigerung gegenüber einem durch den Stand der Technik erzielbaren Schnitt 31 in einem Zielblock 32 nach Fig. 4.A cut 30 according to FIG. 3 which can be achieved by the insert described above with an explosive insert and a housing with an ignition device not described here shows the increase in performance compared to a cut 31 achievable by the prior art in a target block 32 according to FIG. 4.

Claims (1)

  1. Multisectional liner for linear, roof-shaped, hollow charges for the shearing or separation of steel plates, cables, bridge girders and the like, said liner having inserts (14, 15) forming a gable-sided closure, characterized in that the crossection of the inserts (14, 15) having a sinusoidally-shaped configuration and the thickness is progressively increasing or decreasing towards there open ends.
EP80100409A 1979-02-03 1980-01-28 Multisectional liner for linear, roof-shaped, hollow charges Expired EP0014400B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2904155 1979-02-03
DE2904155A DE2904155C2 (en) 1979-02-03 1979-02-03 Inserts for cutting charges

Publications (3)

Publication Number Publication Date
EP0014400A2 EP0014400A2 (en) 1980-08-20
EP0014400A3 EP0014400A3 (en) 1980-09-03
EP0014400B1 true EP0014400B1 (en) 1983-05-18

Family

ID=6062117

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80100409A Expired EP0014400B1 (en) 1979-02-03 1980-01-28 Multisectional liner for linear, roof-shaped, hollow charges

Country Status (3)

Country Link
US (1) US4327642A (en)
EP (1) EP0014400B1 (en)
DE (1) DE2904155C2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2707000C1 (en) * 2018-11-28 2019-11-21 Общество с ограниченной ответственностью "Технощит" Facing for shaping device

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2176878B (en) * 1979-08-14 1987-09-03 Royal Ordnance Plc Hollow charges
FI66988C (en) * 1981-10-28 1984-12-10 Sica Ab Oy HAOLPATRON MED RIKTAD SPRAENGVERKAN OCH FOERFARANDE FOER FRAMSTAELLNING AV EN METALLISK KON FOER HAOLPATRON
US4498367A (en) * 1982-09-30 1985-02-12 Southwest Energy Group, Ltd. Energy transfer through a multi-layer liner for shaped charges
JPS6053800A (en) * 1983-09-02 1985-03-27 三菱重工業株式会社 Method of crushing base rock
US4649825A (en) * 1984-06-25 1987-03-17 The United States Of America As Represented By The Secretary Of The Navy Explosive separation system for composite materials
DE3529405C1 (en) * 1985-08-16 1996-05-09 Rheinmetall Ind Gmbh Inlay for explosive warhead
DE3739683C2 (en) * 1987-11-24 1999-05-12 Mueller Christfried A A H Cutting charge
US5175391A (en) * 1989-04-06 1992-12-29 The United States Of America As Represented By The Secretary Of The Army Method for the multimaterial construction of shaped-charge liners
US6183569B1 (en) 1999-03-15 2001-02-06 Spectre Enterprises, Inc. Cutting torch and associated methods
US6446558B1 (en) * 2001-02-27 2002-09-10 Liquidmetal Technologies, Inc. Shaped-charge projectile having an amorphous-matrix composite shaped-charge liner
FR2897553B1 (en) * 2006-02-20 2012-08-31 Commissariat Energie Atomique PYROTECHNIC DISCONNECT WITH ANNULATED HOLLOW LOAD FOR CIRCULAR SECTION PARTS
GB0604408D0 (en) * 2006-03-04 2006-07-12 Alford Res Ltd An explosive charge
US8166882B2 (en) * 2009-06-23 2012-05-01 Schlumberger Technology Corporation Shaped charge liner with varying thickness

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2758543A (en) * 1950-04-10 1956-08-14 Clarence W Grandin Cutting method and apparatus
DE1106646B (en) * 1958-02-27 1961-05-10 Rheinmetall Gmbh Shaped charge
DE1137987B (en) * 1960-02-23 1962-10-11 Bofors Ab Shaped charge
FR1327804A (en) * 1962-04-09 1963-05-24 Soc Tech De Rech Ind Improvements to coatings for shaped charges
DE977835C (en) * 1964-09-09 Messerschmitt Boelkow Blohm Shaped charge to produce cut-like effects
DE1571283A1 (en) * 1966-12-05 1969-05-29 Bundesrepublik Deutschland D D Cylindrical shaped charge
DE1946959C3 (en) * 1969-09-17 1974-01-10 Rheinmetall Gmbh, 4000 Duesseldorf Shaped charge with insert of progressive or degressive wall thickness
US3712221A (en) * 1971-01-18 1973-01-23 Us Army Blast shield for explosive devices including linear shaped charges
US3750582A (en) * 1971-09-03 1973-08-07 Us Army Projectile with differential tandem shaped charges
US3976010A (en) * 1973-04-16 1976-08-24 Whittaker Corporation Spin compensated liner for shaped charge ammunition and method of making same
US3948181A (en) * 1973-05-14 1976-04-06 Chamberlain Manufacturing Corporation Shaped charge
NZ180650A (en) * 1975-06-20 1978-11-13 Gulf Oil Corp Blasting cartidge
FR2365774A1 (en) * 1976-09-27 1978-04-21 Serat IMPROVEMENTS IN PROJECTILE LOADS
DE2724036C2 (en) * 1977-05-27 1981-09-24 Diehl GmbH & Co, 8500 Nürnberg Cutting charge for cutting through plate or rod-shaped objects

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"Criteria for jet formation from impinging shells and plates", July 1976, Journal of Applied Physics, Vol. 47, No. 7, pages 2975-2981 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2707000C1 (en) * 2018-11-28 2019-11-21 Общество с ограниченной ответственностью "Технощит" Facing for shaping device

Also Published As

Publication number Publication date
DE2904155A1 (en) 1980-08-07
EP0014400A3 (en) 1980-09-03
EP0014400A2 (en) 1980-08-20
US4327642A (en) 1982-05-04
DE2904155C2 (en) 1982-01-21

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