EP0215183A1 - Revêtement pour garnir une charge explosive et pour établir un projectile en forme de barre et procédé pour former le revêtement - Google Patents

Revêtement pour garnir une charge explosive et pour établir un projectile en forme de barre et procédé pour former le revêtement Download PDF

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Publication number
EP0215183A1
EP0215183A1 EP86104896A EP86104896A EP0215183A1 EP 0215183 A1 EP0215183 A1 EP 0215183A1 EP 86104896 A EP86104896 A EP 86104896A EP 86104896 A EP86104896 A EP 86104896A EP 0215183 A1 EP0215183 A1 EP 0215183A1
Authority
EP
European Patent Office
Prior art keywords
insert
disc
areas
pressing
projectile
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.)
Granted
Application number
EP86104896A
Other languages
German (de)
English (en)
Other versions
EP0215183B1 (fr
Inventor
Hendrik Lips
Jörg Dr. Peters
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.)
Rheinmetall Industrie AG
Original Assignee
Rheinmetall 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 Rheinmetall GmbH filed Critical Rheinmetall GmbH
Publication of EP0215183A1 publication Critical patent/EP0215183A1/fr
Application granted granted Critical
Publication of EP0215183B1 publication Critical patent/EP0215183B1/fr
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
    • F42B1/032—Shaped or hollow charges characterised by the material of the liner

Definitions

  • a generic insert is known from DE-PS 33 17 352.
  • the rear-side projections on the projectile are to be ensured by regionally different wall thicknesses of the insert.
  • the invention has for its object to provide a generic insert and a method for its production, which is characterized by comparatively little effort with good results.
  • a flat disk 10.1 has a region 12.1 around its center 16 and regions 14 which extend radially inward from the circumference 18.
  • the disk 10.1 is hardened; it is soft-annealed in areas 12.1 and 14 by localized supply of heat, so that a coherent area 20.1 between areas 12.1 and 14 has a higher strength than the latter. Subsequently, the disk 10.1 is pressed into the form of a hollow spherical cap.
  • the disk 10.1 can also be pressed to the carrot in the hardened state and then heat treated in the aforementioned manner.
  • areas 20.1 have a core hardness of approx. 130 HV and areas 12.1 and 14 have a hardness of only approx. 70 HV.
  • the transition between the areas is advantageously not sharp, but rather comparatively smooth. This will be discussed later.
  • the flat disk 10.2 according to FIG. 2 is produced as follows: A soft-annealed flat disk with an oversize in thickness and diameter is cold deformed by pressure in the outside area. The cold deformation is about 20%. The disc treated in this way is machined to the target dimension in thickness and diameter to disc 10.2. Areas 20.2 solidified by pressure are delimited on the outside by the circumference 18 and delimited on the inside by a soft-annealed area 12.2 by the sides of an inscribed equilateral hexagon. In a variant not shown, the areas 20.2 are delimited on the inside by comparatively shorter secants compared to the area 12.2, which then is in turn bounded on the outside by finite portions of the circumference 18.
  • the pressure for work hardening can be applied by a (2 hollow punches) hexagonal cross-section on the top or bottom (both sides).
  • the disk 10.2 is pressed for insertion in the form of a hollow spherical cap.
  • the flat disk 10.3 according to FIG. 3 also arises from a soft-annealed flat disk with an oversize in thickness and diameter.
  • the areas 20.3 are cold-deformed and consolidated by pressing from the top or bottom (on both sides) by means of a (two punches) with projections, the end faces of which have a specifiable crown, given a diameter that can be specified.
  • a radial deformation gradient can be set in the regions 20.3 in a simple manner by forming the end faces of the projections of the stamp. In this way, a comparatively sharp transition between the areas 20.3 and the surrounding and central area 12.3 can be avoided.
  • processing is carried out to the required dimension according to thickness and diameter to the plane disc 10.3 shown and pressing the latter to insert.
  • Influencing the material properties by thermal and / or mechanical treatment not only proves to be considerably easier than in the known state of the art, but also allows freedom of movement in the design of the projectile to be blasted within wide limits.
  • the above-mentioned smooth transitions between the areas mentioned avoid undesired material separations during explosive forming and flight of the projectile. Editing the printed insert to the final dimension (possibly turning a chamfer) is comparatively simple with the inserts according to the invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat Treatment Of Articles (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Forging (AREA)
  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
EP86104896A 1985-07-18 1986-04-10 Revêtement pour garnir une charge explosive et pour établir un projectile en forme de barre et procédé pour former le revêtement Expired EP0215183B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3525613 1985-07-18
DE19853525613 DE3525613A1 (de) 1985-07-18 1985-07-18 Einlage zum belegen einer sprengladung und bilden eines stabfoermigen projektils und verfahren zum herstellen der einlage

Publications (2)

Publication Number Publication Date
EP0215183A1 true EP0215183A1 (fr) 1987-03-25
EP0215183B1 EP0215183B1 (fr) 1989-02-15

Family

ID=6276058

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86104896A Expired EP0215183B1 (fr) 1985-07-18 1986-04-10 Revêtement pour garnir une charge explosive et pour établir un projectile en forme de barre et procédé pour former le revêtement

Country Status (6)

Country Link
US (1) US4714019A (fr)
EP (1) EP0215183B1 (fr)
JP (1) JPS6219700A (fr)
DE (2) DE3525613A1 (fr)
ES (2) ES8900199A1 (fr)
NO (1) NO161402C (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3628622C1 (de) * 1986-08-22 1996-08-08 Fraunhofer Ges Forschung Vorrichtung zur Erzeugung sprenggeformter Projektile
DE3830527A1 (de) * 1988-09-08 1990-03-22 Diehl Gmbh & Co Projektilbildende einlage fuer hohlladungen und verfahren zum herstellen der einlage
US5365852A (en) * 1989-01-09 1994-11-22 Aerojet-General Corporation Method and apparatus for providing an explosively formed penetrator having fins
SE502461C2 (sv) * 1991-07-01 1995-10-23 Bofors Ab Sätt vid projektilbildande explosiva laddningar
FR2681677B1 (fr) * 1991-09-20 1995-01-27 Thomson Brandt Armements Charge explosive avec revetement a proprietes mecaniques reparties.
DE4213318C2 (de) * 1992-04-23 2000-04-13 Rheinmetall W & M Gmbh Verfahren zur Herstellen einer Ladungseinlage
WO1994025414A1 (fr) * 1993-05-04 1994-11-10 Alliant Techsystems Inc. Systeme propulsif ameliore
US5892172A (en) * 1997-04-22 1999-04-06 Alliant Techsystems Inc. Propellant system
US6505559B1 (en) * 2000-09-14 2003-01-14 Owen Oil Tools, Inc. Well bore cutting and perforating devices and methods of manufacture
DE102005044320B4 (de) 2005-09-16 2010-11-11 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Ladung mit einer im wesentlichen zylindrischen Sprengstoffanordnung
US10020519B2 (en) 2013-06-04 2018-07-10 Nissan Motor Co., Ltd. Molding method for removing separator distortion and molding device for removing separator distortion

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2913103A1 (de) * 1978-06-27 1980-01-10 Deutsch Franz Forsch Inst Flachkegelladung
DE3129530A1 (de) * 1980-08-01 1982-06-03 Société d'Etudes, de Réalisations et d'Applications Techniques (S.E.R.A.T.), 75008 Paris Ueberzuege fuer geformte explosivladungen
DE3217724A1 (de) * 1981-09-04 1983-06-16 Deutsch-Französisches Forschungsinstitut Saint-Louis, 68301 Saint-Louis Hohlladung
DE3317352A1 (de) * 1983-05-13 1984-11-15 Diehl GmbH & Co, 8500 Nürnberg Einlage fuer eine projektilbildende ladung

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3765177A (en) * 1959-12-30 1973-10-16 Thiokol Chemical Corp Rocket motor with blast tube and case bonded propellant
US3722421A (en) * 1962-04-04 1973-03-27 Us Army Solid bipropellant
US3429264A (en) * 1965-12-01 1969-02-25 Nitrochemie Gmbh Solid rocket propellants
FR1603394A (fr) * 1968-10-15 1971-04-13
US3745199A (en) * 1968-12-23 1973-07-10 Us Army Method of making an improved case-bonded end-burning propellant grain with restricted stress-relief ports
FR2234465A1 (en) * 1973-06-19 1975-01-17 Poudres & Explosifs Ste Nale Cylindrical rocket propellant charge blocks - with central branched and eccentric axially directed channels
JPS5747789A (en) * 1980-09-01 1982-03-18 Nippon Oils & Fats Co Ltd Sheet-like gunpowder, manufacture and use
US4594945A (en) * 1984-11-28 1986-06-17 General Dynamics, Pomona Division Thermal protection for propellant grains

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2913103A1 (de) * 1978-06-27 1980-01-10 Deutsch Franz Forsch Inst Flachkegelladung
DE3129530A1 (de) * 1980-08-01 1982-06-03 Société d'Etudes, de Réalisations et d'Applications Techniques (S.E.R.A.T.), 75008 Paris Ueberzuege fuer geformte explosivladungen
DE3217724A1 (de) * 1981-09-04 1983-06-16 Deutsch-Französisches Forschungsinstitut Saint-Louis, 68301 Saint-Louis Hohlladung
DE3317352A1 (de) * 1983-05-13 1984-11-15 Diehl GmbH & Co, 8500 Nürnberg Einlage fuer eine projektilbildende ladung

Also Published As

Publication number Publication date
EP0215183B1 (fr) 1989-02-15
ES8801558A1 (es) 1988-02-16
DE3525613A1 (de) 1987-01-22
ES555811A0 (es) 1989-04-01
DE3662119D1 (en) 1989-03-23
US4714019A (en) 1987-12-22
ES8900199A1 (es) 1989-04-01
ES557528A0 (es) 1988-02-16
JPS6219700A (ja) 1987-01-28
NO861438L (no) 1987-01-19
NO161402B (no) 1989-05-02
JPH042878B2 (fr) 1992-01-21
NO161402C (no) 1989-08-09

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