GB1503143A - Method for the production of casings for projectiles - Google Patents

Method for the production of casings for projectiles

Info

Publication number
GB1503143A
GB1503143A GB2352875A GB2352875A GB1503143A GB 1503143 A GB1503143 A GB 1503143A GB 2352875 A GB2352875 A GB 2352875A GB 2352875 A GB2352875 A GB 2352875A GB 1503143 A GB1503143 A GB 1503143A
Authority
GB
United Kingdom
Prior art keywords
casing
production
projectile
changes
casings
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
GB2352875A
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
Steigerwald Strahltecknik GmbH
Original Assignee
Rheinmetall GmbH
Steigerwald Strahltecknik 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, Steigerwald Strahltecknik GmbH filed Critical Rheinmetall GmbH
Publication of GB1503143A publication Critical patent/GB1503143A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B12/00—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
    • F42B12/02—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect
    • F42B12/20—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect of high-explosive type
    • F42B12/22—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect of high-explosive type with fragmentation-hull construction
    • 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
    • C21D9/16—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for explosive shells

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Vibration Dampers (AREA)
  • Welding Or Cutting Using Electron Beams (AREA)

Abstract

1503143 Heat-treating projectile casings RHEINMETALL GmbH and STEIGERWALD STRAHLTECHNIK GmbH 18 May 1972 [27 May 1971] 23528/72 Heading C7N [Also in Division F3] In the production of projectile casings, the casing surface is subjected to a heat treatment using an energy beam to effect changes in the structure of the material and/or the surface shape of the casing in certain places or areas over the surface of the casing to facilitate fragmentation of the casing into fragments of the desired size. The process is preferably carried out using a focused electron beam. When the material in pre-selected zones of the casing is heated above its melting point, followed by rapid cooling by self-quenching, very narrowly limited zones are created with metallurgical properties different from the remainder of the material and with fracturing characteristics ensuring the desired formation of optimum splinters. In preferred embodiments linear structural changes are produced over the casing surface in such a way that regular geometric shapes are obtained e.g. rectangles, squares, hexagons or circles. In particular, structural changes taking a linear course over the casing surface can be formed so as to constitute a cohesive network. The heat treatment usually covers a certain depth range of the casing wall. Changes in the surface shape of the projectile casing are produced by removing material from pre-selected zones. Removal of this type by the production of blind holes of a certain shape and depth may be situated, for example, both in the longitudinal and peripheral directions, in each case following one another in a row and the rows supplementing one another in raster fashion. A notch effect is thus obtained. The invention is described with particular reference to medium-calibre projectiles (20-40 mm.) such as AA shells, with reference also being made to largecalibre ammunition (100-200 mm.) and heavycalibre bombs.
GB2352875A 1971-05-27 1972-05-18 Method for the production of casings for projectiles Expired GB1503143A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712126351 DE2126351C1 (en) 1971-05-27 1971-05-27 Process for the production of shells for projectiles, warheads or the like

Publications (1)

Publication Number Publication Date
GB1503143A true GB1503143A (en) 1978-03-08

Family

ID=5809081

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2352875A Expired GB1503143A (en) 1971-05-27 1972-05-18 Method for the production of casings for projectiles

Country Status (4)

Country Link
DE (1) DE2126351C1 (en)
FR (1) FR2368684A1 (en)
GB (1) GB1503143A (en)
IT (1) IT1021508B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0060985A1 (en) * 1981-03-25 1982-09-29 Rheinmetall GmbH Tubular projectile
EP0163029A2 (en) * 1984-04-02 1985-12-04 Aktiebolaget Bofors Explosive shell case
US5117759A (en) * 1991-08-05 1992-06-02 The United States Of America As Represented By The Secretary Of The Navy Filamentary composite dual wall warhead
US9329009B1 (en) 2013-03-15 2016-05-03 Vista Outdoor Operations Llc Manufacturing process to produce programmed terminal performance projectiles
US11454480B1 (en) * 2019-06-12 2022-09-27 Corvid Technologies LLC Methods for forming munitions casings and casings and munitions formed thereby

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2438686A1 (en) * 1978-10-13 1980-05-09 France Etat Embrittling weapon casing to cause splinter formation on detonation - by subjecting to local heating to form narrow bands of martensite
DE3017380A1 (en) * 1980-05-07 1981-11-12 Rheinmetall GmbH, 4000 Düsseldorf Shell or projectile with explosive head - which is connected to guide vanes by shaft with construction allowing breakage at specified point
DE3144533A1 (en) * 1981-11-10 1990-11-08 Rheinmetall Gmbh Non-rotating non-detonated projectile with drive plate
DE3830527A1 (en) * 1988-09-08 1990-03-22 Diehl Gmbh & Co PROJECT-FORMING INSERT FOR HOLLOW LOADS AND METHOD FOR PRODUCING THE INSERT
DE19960180B4 (en) * 1999-12-14 2006-03-09 Rheinmetall W & M Gmbh Method for producing an explosive projectile
DE102007001998A1 (en) 2007-01-08 2008-07-10 Rheinmetall Waffe Munition Gmbh explosive projectile
DE102010061272B3 (en) 2010-12-15 2013-04-25 Krauss-Maffei Wegmann Gmbh & Co. Kg Projectile casing for an explosive projectile and method for treating a projectile casing

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0060985A1 (en) * 1981-03-25 1982-09-29 Rheinmetall GmbH Tubular projectile
EP0163029A2 (en) * 1984-04-02 1985-12-04 Aktiebolaget Bofors Explosive shell case
EP0163029A3 (en) * 1984-04-02 1986-12-17 Aktiebolaget Bofors Explosive shell case
US5117759A (en) * 1991-08-05 1992-06-02 The United States Of America As Represented By The Secretary Of The Navy Filamentary composite dual wall warhead
US9329009B1 (en) 2013-03-15 2016-05-03 Vista Outdoor Operations Llc Manufacturing process to produce programmed terminal performance projectiles
US9360284B1 (en) 2013-03-15 2016-06-07 Vista Outdoor Operations Llc Manufacturing process to produce metalurgically programmed terminal performance projectiles
US11454480B1 (en) * 2019-06-12 2022-09-27 Corvid Technologies LLC Methods for forming munitions casings and casings and munitions formed thereby
US11747122B1 (en) 2019-06-12 2023-09-05 Corvid Technologies LLC Methods for forming munitions casings and casings and munitions formed thereby

Also Published As

Publication number Publication date
DE2126351C1 (en) 1978-04-27
FR2368684B1 (en) 1979-09-07
IT1021508B (en) 1978-02-20
FR2368684A1 (en) 1978-05-19

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee