WO1989003500A1 - Fragmentation shell for a metallic explosive object and manufacturing process - Google Patents
Fragmentation shell for a metallic explosive object and manufacturing process Download PDFInfo
- Publication number
- WO1989003500A1 WO1989003500A1 PCT/CH1988/000157 CH8800157W WO8903500A1 WO 1989003500 A1 WO1989003500 A1 WO 1989003500A1 CH 8800157 W CH8800157 W CH 8800157W WO 8903500 A1 WO8903500 A1 WO 8903500A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- hollow body
- separating cut
- jacket according
- separating
- splinter
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B3/00—Blasting cartridges, i.e. case and explosive
-
- 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
- F42B12/26—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 the projectile wall being formed by a spirally-wound element
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
- B25H3/00—Storage means or arrangements for workshops facilitating access to, or handling of, work tools or instruments
Definitions
- the invention relates to a splinter jacket for an explosive body, in particular for a projectile, a grenade or a mine, with a one-piece hollow body provided with predetermined breaking points.
- the invention further relates to a method for producing such a splinter jacket.
- the splinter jacket is usually provided with predetermined breaking points.
- predetermined breaking points designed as grooves in the splinter jacket, the possible total mass of the splinter jacket (in relation to its size) is somewhat lost.
- a splinter jacket which consists of rings with a rectangular cross-section which are arranged on a support body and lie snugly against one another.
- DE-Ul-84 27 781.5 shows a warhead with cracks arranged in the warhead ' cop housing, which are created from grooves milled into the wall of the warhead housing by upsetting the warhead housing.
- the invention has for its object to provide a splinter jacket of the type described above, which can be produced much more efficiently with considerably less work.
- This object is achieved according to the present invention by a splinter jacket with the features specified in claim 1.
- the solution idea is to slit the hollow body at least in one batch through at least one separating cut forming a separating gap, the separating cut being made in such a way that the hollow body remains as an integral structure.
- the separating cut surfaces adjacent to one another in the separating gap are brought into contact with one another and fixed to one another in contact.
- FIG. 1 shows a hollow body in the form of a hollow cylinder, the jacket of which is evenly divided into turns between two end parts by a separating cut, which are spaced apart by pulling apart,
- FIG. 2 shows a hollow body according to FIG. 1, but this is pushed together so that the windings abut one another,
- FIG. 3 shows in section a hollow body, according to FIG. 2, in which, however, the mutually adjacent separating cut edges are partially connected to one another by a weld on the outer circumference,
- Fig. 4 is a hollow body according to FIG. 2, but in which erschweissung ⁇ the adjacent separating cut edges by a point are connected partially to each other on the outer circumference,
- FIG. 5 shows in section a hollow body, according to FIG. 2, in which, however, a support sleeve is inserted
- FIG. 6 shows in section a hollow body shown only half, according to FIG. 2, in which, however, the separating cut is for the most part oriented obliquely to its surface
- 7 shows a hollow body, according to FIG. 2, in which, however, the separating cut is made in sections zig-zag-shaped
- FIG. 10 shows a hollow body according to FIG. 2, in which, however, two separating cuts are provided
- FIG. 11 shows a hollow body, according to FIG. 2, but with a molded ignition head
- FIG. 1 The hollow cylinder 1 shown therein has a constant wall thickness.
- a helical separating cut 5 has been made, by means of which the middle section 4 is broken up into turns 6.
- the separating cut 5 is carried out by a metal cutting device, for example by a laser or plasma cutting device.
- the separating cut 5 can also be carried out in another way, for example by means of a mechanical cutting device.
- the gap formed between the turns is shown in FIG. 1 by pulling the turns 6 ' apart.
- the gap width when making the separating cut using a laser cutting device is only approximately 0.15-0.3 mm.
- a small hole 7 with an at least approximately round cross section can be provided there.
- the hollow cylinder 1 In the collapsed state, the hollow cylinder 1 is under a certain elastic tension. So that it remains in this state, it must be fixed in this state. This can be done in a simple manner by welding adjacent cut edges of the separating cut 5, as is shown in FIG. 3. In FIG. 3, a weld seam made on the outer circumference and running continuously along the separating cut is designated by 8.
- FIG. 3 shows an embodiment in which the cut edges of the separating cut 5 are discontinuously welded on the outer circumference.
- the individual welds are designated by 9.
- the hollow cylinder cut open by the separating cut becomes a body which is stable in itself and which is directly suitable for receiving an explosive charge without additional reinforcing elements.
- Another possibility of fixing the hollow cylinder in the collapsed state is to use a support sleeve. 5, an inner support sleeve 10 is shown.
- the hollow cylinder 1 is on the one hand by an outwardly jumping shoulder 11 of the support sleeve 10 in the right part of FIG. 5 and on the other hand by a web on the support sleeve 10 in the left part of FIG. 5 fixed.
- the support sleeve 10 preferably consists of a relatively easily deformable material, such as aluminum, and is pressed into the hollow cylinder under pressure (the material flowing into the groove in the hollow cylinder).
- the supporting sleeve can also act as foreign 'formed sleeve (not shown) ".
- the stability of the hollow cylinder 1 is substantially increased by the support sleeve 10.
- the support sleeve 10 requires a certain volume by which an explosive device to be inserted into the hollow cylinder 1 must be made smaller.
- the welding solution itself is therefore preferable.
- FIG. 6 shows in section a hollow body 1, only half shown, according to FIG. 2, in which, however, the separating cut 5 is for the most part oriented obliquely to its surface. This can be used, for example, for spatial distribution the pressure wave arising during the detonation of the explosive device is taken into account.
- FIG. 7 shows a hollow body, according to FIG. 2, in which, however, the separating cut 5 is made zigzag or wavy in sections.
- FIG. 9 shows in section a hollow body 1, only half shown, according to FIG. 2, in which, however, the pitch of the windings 6 is not constant, but rather decreases from the center 4 towards the outside (towards the end parts 2, 3).
- the spatial distribution of the pressure wave generated when the explosive device is detonated can also be taken into account in this way.
- FIG. 10 shows a hollow body 1 according to FIG. 2, in which two helical, mutually non-overlapping separating cuts 5 ', 5''are provided. It is also possible to make the separating cuts as single or multi-start screw lines. In addition, the separating cuts can be made with interruptions instead of the welded connections (8 or 9 in Fig. 7 or 8).
- FIG. 11 shows a splinter jacket which is designed as a predominantly cylindrical sleeve 13 with a base part 14 designed as a fastening element for an ignition head.
- a hollow body is preferably produced prior to the attachment of the separating cut 5 by hot and / or cold massive forming or in the deep-drawing process, with the fastening element for the igniter head being formed at the same time.
- the separating cut 5 ends or begins at a distance from the left-hand opening of the bush on the one hand and from its bottom part 14 on the other hand.
- the grooves can also be formed using the • above-mentioned manufacturing techniques. Instead of axially, the grooves can also run helically, for example. In general, they should run essentially perpendicular to the separating section or sections.
- the design of the hollow body is in no way limited to hollow cylinders.
- the invention can also be used without any problems in the case of conical, frustoconical, spherical, egg-shaped, plate-shaped or grenade-shaped hollow bodies, an embodiment both with or without a support sleeve being possible.
- the hollow bodies do not necessarily have to be rotationally symmetrical. Hollow bodies that are open, only open at one point or side or completely closed can be used at two points.
- the hollow body thus created which is provided with a winding section, can also be used as a spring for other purposes, for example with appropriate thermal treatment. All materials can be used in which a separating cut can be carried out by a suitable method.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Arc Welding In General (AREA)
- Helmets And Other Head Coverings (AREA)
- Laser Beam Processing (AREA)
- Disintegrating Or Milling (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Description
Claims
Priority Applications (11)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR888807247A BR8807247A (pt) | 1987-10-14 | 1988-09-09 | Involucro fragmentavel para engenho explosivo e processo para sua fabricacao |
AT88907598T ATE76186T1 (de) | 1987-10-14 | 1988-09-09 | Splittermantel fuer metallische explosivkoerper sowie verfahren zu seiner herstellung. |
DE8888907598T DE3871140D1 (de) | 1987-10-14 | 1988-09-09 | Splittermantel fuer metallische explosivkoerper sowie verfahren zu seiner herstellung. |
AR88312083A AR241668A1 (es) | 1987-10-14 | 1988-09-30 | Casco de fragmentacion para cuerpos explosivos. |
IL87958A IL87958A (en) | 1987-10-14 | 1988-10-07 | Fragmentation casing for a high-explosive device |
PT88744A PT88744B (pt) | 1987-10-14 | 1988-10-12 | Involucro fragmentavel para engenhos explosivos, metalico e processo para a sua fabricacao |
CN88107203A CN1032584A (zh) | 1987-10-14 | 1988-10-13 | 金属爆炸体的碎裂外壳及其制造方法 |
DK249289A DK249289D0 (da) | 1987-10-14 | 1989-05-23 | Spraengkappe til et spraenglegeme af metal samt fremgangsmaade til dens fremstilling |
FI892722A FI94672C (fi) | 1987-10-14 | 1989-06-02 | Sirpalevaippa metallisia räjähtäviä kappaleita varten sekä menetelmä tämän valmistamiseksi |
KR1019890701040A KR890701980A (ko) | 1987-10-14 | 1989-06-09 | 폭발장치용 파열케이싱과 그 제작방법 |
NO892461A NO172953C (no) | 1987-10-14 | 1989-06-13 | Fremgangsmaate for fremstilling av en splinthylse for et sprenglegeme av metall |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH4023/87-9 | 1987-10-14 | ||
CH402387 | 1987-10-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1989003500A1 true WO1989003500A1 (en) | 1989-04-20 |
Family
ID=4268375
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CH1988/000157 WO1989003500A1 (en) | 1987-10-14 | 1988-09-09 | Fragmentation shell for a metallic explosive object and manufacturing process |
Country Status (20)
Country | Link |
---|---|
US (1) | US5095821A (de) |
EP (2) | EP0344224B1 (de) |
JP (1) | JPH02501853A (de) |
KR (1) | KR890701980A (de) |
CN (1) | CN1032584A (de) |
AR (1) | AR241668A1 (de) |
AT (1) | ATE76186T1 (de) |
AU (1) | AU2318588A (de) |
BR (1) | BR8807247A (de) |
CA (1) | CA1323800C (de) |
DE (1) | DE3871140D1 (de) |
DK (1) | DK249289D0 (de) |
ES (1) | ES2033018T3 (de) |
FI (1) | FI94672C (de) |
GR (1) | GR3005383T3 (de) |
IL (1) | IL87958A (de) |
NO (1) | NO172953C (de) |
PT (1) | PT88744B (de) |
WO (1) | WO1989003500A1 (de) |
ZA (1) | ZA887516B (de) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9011559D0 (en) * | 1990-05-23 | 1990-07-11 | Jem Smoke Machine Co | Improvements in or relating to a pyrotechnic device |
SG82583A1 (en) * | 1997-04-23 | 2001-08-21 | Diehl Stiftung & Co | Fragmentation body for a fragmentation projectile |
DE19960180B4 (de) * | 1999-12-14 | 2006-03-09 | Rheinmetall W & M Gmbh | Verfahren zur Herstellung eines Sprenggeschosses |
CH694473A5 (de) | 2000-04-19 | 2005-01-31 | Karl Merz | Stahlmantel für eine Granate und Verfahren zu seiner Herstellung. |
DE10130324B4 (de) * | 2001-06-22 | 2005-03-24 | TDW Gesellschaft für wehrtechnische Wirksysteme mbH | Splittererzeugender Gefechtskopf |
IL160500A (en) * | 2004-02-20 | 2009-02-11 | Rafael Advanced Defense Sys | Method of retrofiting a munition for enhancing fragmentation effectiveness |
US7093542B2 (en) * | 2004-04-22 | 2006-08-22 | Lockheed Martin Corporation | Warhead with integral, direct-manufactured features |
BG969U1 (bg) * | 2006-12-19 | 2007-12-28 | "Арсенал" Ад | Осколъчна граната |
JP5256078B2 (ja) * | 2009-03-03 | 2013-08-07 | 株式会社Ihiエアロスペース | 指向性りゅう弾 |
GB2469099B (en) * | 2009-04-01 | 2013-01-23 | Chemring Energetics Uk Ltd | Explosive charge |
DE102009047757B4 (de) | 2009-12-09 | 2011-09-15 | Hoffmann & Co. Elektrokohle Ag | Sensorelement für eine Sensorvorrichtung |
JP5504902B2 (ja) * | 2010-01-14 | 2014-05-28 | 日油株式会社 | 円筒状弾薬用の梱包容器 |
US9360284B1 (en) | 2013-03-15 | 2016-06-07 | Vista Outdoor Operations Llc | Manufacturing process to produce metalurgically programmed terminal performance projectiles |
AT515209B1 (de) | 2014-03-14 | 2015-07-15 | Hirtenberger Defence Systems Gmbh & Co Kg | Geschoss |
US10018453B1 (en) | 2014-04-15 | 2018-07-10 | Lockheed Martin Corporation | Lightweight monolithic warhead and a method of manufacture |
US9738947B1 (en) | 2014-04-18 | 2017-08-22 | The United States Of America As Represented By The Secretary Of The Navy | Fragmentation device with increased surface hardness and a method of producing the same |
WO2016100594A1 (en) * | 2014-12-18 | 2016-06-23 | Raytheon Company | Explosive device with casing having voids therein |
RU2627506C1 (ru) * | 2016-04-18 | 2017-08-08 | Роман Николаевич Серёгин | Корпус боеприпаса |
US10113846B2 (en) * | 2016-07-07 | 2018-10-30 | General Dynamics Ordnance and Tactical Systems-Canada, Inc. | Systems and methods for reducing munition sensitivity |
RU174290U1 (ru) * | 2017-04-03 | 2017-10-10 | Государственное научное учреждение "Институт порошковой металлургии" | Осколочный элемент заданного дробления |
US11454480B1 (en) | 2019-06-12 | 2022-09-27 | Corvid Technologies LLC | Methods for forming munitions casings and casings and munitions formed thereby |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR792362A (fr) * | 1935-07-11 | 1935-12-30 | Perfectionnement à la fabrication des ressorts à boudin | |
US2393275A (en) * | 1943-09-04 | 1946-01-22 | Budd Edward G Mfg Co | Method of making fragmentation bombs |
US2673730A (en) * | 1948-10-28 | 1954-03-30 | Hupp Arleigh Glynn | Spring for spring clutches |
US2798431A (en) * | 1951-01-25 | 1957-07-09 | Howard W Semon | Fragmentation warhead |
US3768414A (en) * | 1971-05-21 | 1973-10-30 | Us Navy | Controlled fragment warhead |
FR2402003A1 (fr) * | 1977-08-31 | 1979-03-30 | Bofors Ab | Dispositif et procede de traitement d'une tete explosive pour en assurer la fragmentation |
US4570318A (en) * | 1984-10-12 | 1986-02-18 | United Technologies Corporation | Overunning clutch spring |
DE3624330C1 (de) * | 1986-07-18 | 1987-09-10 | Rheinmetall Gmbh | Hohlladungstochtergeschoss mit einer Geschosshuelle und vorderseitigem Zuendabstandshalter |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
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US1203062A (en) * | 1915-08-02 | 1916-10-31 | John B Semple | Grenade. |
US2458576A (en) * | 1943-10-04 | 1949-01-11 | Nicholas L Etten | Fragmentation bomb |
US2382277A (en) * | 1943-10-30 | 1945-08-14 | Budd Edward G Mfg Co | Munitions |
US3434422A (en) * | 1959-04-22 | 1969-03-25 | Chamberlain Mfg Corp | Continuous rod mat |
US3855933A (en) * | 1967-05-11 | 1974-12-24 | Us Army | Dual purpose grenade |
FR2312009A1 (fr) * | 1975-05-23 | 1976-12-17 | Thomson Brandt | Enveloppe de charge explosive et notamment projectile a fragmentation |
BE889289A (fr) * | 1981-06-18 | 1981-12-18 | Prb N V Prb Sa | Tete creuse a fragmentation controlee pour engin explosif |
EP0030809B1 (de) * | 1979-12-13 | 1984-11-21 | The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and | Geschoss mit Splitterwirkung der Hülle |
US4456705A (en) * | 1981-12-31 | 1984-06-26 | Usm Corporation | Heat fusible-expandable mastic for automobile floor pans |
US4590652A (en) * | 1983-10-14 | 1986-05-27 | Apx Group Inc. | Method for fabricating an air gap pipe |
DE8427781U1 (de) * | 1984-09-21 | 1985-05-15 | Rheinmetall GmbH, 4000 Düsseldorf | Gefechtskopf |
DE8427962U1 (de) * | 1984-09-22 | 1985-05-02 | Rheinmetall GmbH, 4000 Düsseldorf | Gefechtskopf |
CH675475A5 (en) * | 1987-12-10 | 1990-09-28 | Karl Merz | Explosive member with mounted detonator head - having hollow cavity, explosive charge connecting flange, extra edge, external contour annular and main wall |
-
1988
- 1988-09-09 WO PCT/CH1988/000157 patent/WO1989003500A1/de active IP Right Grant
- 1988-09-09 JP JP63507034A patent/JPH02501853A/ja active Pending
- 1988-09-09 AT AT88907598T patent/ATE76186T1/de not_active IP Right Cessation
- 1988-09-09 US US07/381,747 patent/US5095821A/en not_active Expired - Lifetime
- 1988-09-09 AU AU23185/88A patent/AU2318588A/en not_active Abandoned
- 1988-09-09 EP EP88907598A patent/EP0344224B1/de not_active Expired - Lifetime
- 1988-09-09 EP EP88810612A patent/EP0312491A1/de active Pending
- 1988-09-09 DE DE8888907598T patent/DE3871140D1/de not_active Expired - Lifetime
- 1988-09-09 BR BR888807247A patent/BR8807247A/pt unknown
- 1988-09-09 ES ES198888907598T patent/ES2033018T3/es not_active Expired - Lifetime
- 1988-09-30 AR AR88312083A patent/AR241668A1/es active
- 1988-10-06 ZA ZA887516A patent/ZA887516B/xx unknown
- 1988-10-07 IL IL87958A patent/IL87958A/xx not_active IP Right Cessation
- 1988-10-12 PT PT88744A patent/PT88744B/pt not_active IP Right Cessation
- 1988-10-13 CA CA000579986A patent/CA1323800C/en not_active Expired - Fee Related
- 1988-10-13 CN CN88107203A patent/CN1032584A/zh active Pending
-
1989
- 1989-05-23 DK DK249289A patent/DK249289D0/da not_active Application Discontinuation
- 1989-06-02 FI FI892722A patent/FI94672C/fi not_active IP Right Cessation
- 1989-06-09 KR KR1019890701040A patent/KR890701980A/ko not_active Application Discontinuation
- 1989-06-13 NO NO892461A patent/NO172953C/no unknown
-
1992
- 1992-08-06 GR GR920401720T patent/GR3005383T3/el unknown
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR792362A (fr) * | 1935-07-11 | 1935-12-30 | Perfectionnement à la fabrication des ressorts à boudin | |
US2393275A (en) * | 1943-09-04 | 1946-01-22 | Budd Edward G Mfg Co | Method of making fragmentation bombs |
US2673730A (en) * | 1948-10-28 | 1954-03-30 | Hupp Arleigh Glynn | Spring for spring clutches |
US2798431A (en) * | 1951-01-25 | 1957-07-09 | Howard W Semon | Fragmentation warhead |
US3768414A (en) * | 1971-05-21 | 1973-10-30 | Us Navy | Controlled fragment warhead |
FR2402003A1 (fr) * | 1977-08-31 | 1979-03-30 | Bofors Ab | Dispositif et procede de traitement d'une tete explosive pour en assurer la fragmentation |
US4570318A (en) * | 1984-10-12 | 1986-02-18 | United Technologies Corporation | Overunning clutch spring |
DE3624330C1 (de) * | 1986-07-18 | 1987-09-10 | Rheinmetall Gmbh | Hohlladungstochtergeschoss mit einer Geschosshuelle und vorderseitigem Zuendabstandshalter |
Also Published As
Publication number | Publication date |
---|---|
PT88744A (pt) | 1989-07-31 |
NO892461L (no) | 1989-06-13 |
KR890701980A (ko) | 1989-12-22 |
EP0344224A1 (de) | 1989-12-06 |
PT88744B (pt) | 1994-01-31 |
FI892722A (fi) | 1989-06-02 |
GR3005383T3 (de) | 1993-05-24 |
IL87958A0 (en) | 1989-03-31 |
DK249289A (da) | 1989-05-23 |
NO172953B (no) | 1993-06-21 |
NO172953C (no) | 1993-09-29 |
ATE76186T1 (de) | 1992-05-15 |
ZA887516B (en) | 1989-08-30 |
BR8807247A (pt) | 1989-10-31 |
FI94672B (fi) | 1995-06-30 |
CA1323800C (en) | 1993-11-02 |
ES2033018T3 (es) | 1993-03-01 |
IL87958A (en) | 1992-11-15 |
DK249289D0 (da) | 1989-05-23 |
AU2318588A (en) | 1989-05-02 |
NO892461D0 (no) | 1989-06-13 |
FI892722A0 (fi) | 1989-06-02 |
DE3871140D1 (de) | 1992-06-17 |
FI94672C (fi) | 1995-10-10 |
US5095821A (en) | 1992-03-17 |
EP0344224B1 (de) | 1992-05-13 |
AR241668A1 (es) | 1992-10-30 |
EP0312491A1 (de) | 1989-04-19 |
CN1032584A (zh) | 1989-04-26 |
JPH02501853A (ja) | 1990-06-21 |
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