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DE3682681D1 - METHOD AND DEVICE FOR CUTTING WITH EXPLOSIVES. - Google Patents

METHOD AND DEVICE FOR CUTTING WITH EXPLOSIVES.

Info

Publication number
DE3682681D1
DE3682681D1 DE8686903480T DE3682681T DE3682681D1 DE 3682681 D1 DE3682681 D1 DE 3682681D1 DE 8686903480 T DE8686903480 T DE 8686903480T DE 3682681 T DE3682681 T DE 3682681T DE 3682681 D1 DE3682681 D1 DE 3682681D1
Authority
DE
Germany
Prior art keywords
explosive
strip
target
shock wave
wave
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 - Fee Related
Application number
DE8686903480T
Other languages
German (de)
Inventor
Sidney Christopher Alford
Peter Christian Shann
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.)
Explosive Developments Ltd
Original Assignee
Explosive Developments Ltd
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 Explosive Developments Ltd filed Critical Explosive Developments Ltd
Application granted granted Critical
Publication of DE3682681D1 publication Critical patent/DE3682681D1/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • F42B1/00—Explosive charges characterised by form or shape but not dependent on shape of container
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Mechanical Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Disintegrating Or Milling (AREA)

Abstract

Method of and apparatus for two-wave explosive cutting in which the two-wave form for the shock wave produced by the detonation is achieved by varying the progress of the shock wave to the target in sections normal to the line of cut. This object is achieved, in one embodiment, by supporting a strip of explosive material (24) on a shock wave delay element (21) which spaces the mid-regions of the strip of explosive further from the target than the side edges of said strip. On detonation, the shock waves (25) produced by the side edges (22b, c) of the explosive (24) have less distance to travel through the element (22) than the mid-regions and thereby the classic two shock wave fronts (25a, 25b) situation is obtained in the target.
DE8686903480T 1985-05-28 1986-05-27 METHOD AND DEVICE FOR CUTTING WITH EXPLOSIVES. Expired - Fee Related DE3682681D1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8513325 1985-05-28
PCT/GB1986/000292 WO1986007000A1 (en) 1985-05-28 1986-05-27 Explosive cutting means

Publications (1)

Publication Number Publication Date
DE3682681D1 true DE3682681D1 (en) 1992-01-09

Family

ID=10579714

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8686903480T Expired - Fee Related DE3682681D1 (en) 1985-05-28 1986-05-27 METHOD AND DEVICE FOR CUTTING WITH EXPLOSIVES.

Country Status (7)

Country Link
EP (1) EP0261119B1 (en)
JP (1) JP2514943B2 (en)
AT (1) ATE69760T1 (en)
AU (1) AU5908886A (en)
CA (1) CA1319353C (en)
DE (1) DE3682681D1 (en)
WO (1) WO1986007000A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8807044D0 (en) * 1988-03-24 1988-04-27 Univ Manchester Explosive cutting device with waveguide
GB9023730D0 (en) * 1990-11-01 1990-12-12 Everest John R Explosive lines
EP2434251A1 (en) 2010-09-22 2012-03-28 Nederlandse Organisatie voor toegepast -natuurwetenschappelijk onderzoek TNO Explosive cutting
RU2557298C1 (en) * 2013-12-26 2015-07-20 Федеральное государственное казенное учреждение "12 Центральный научно-иследовательский институт" Министерство обороны Российской Федерации Belt charge of sheet high explosive
US10036616B2 (en) * 2016-02-23 2018-07-31 Lawrence Livermore National Security, Llc Architected materials and structures to control shock output characteristics
CN109760144B (en) * 2019-01-31 2023-07-04 东莞市九思自动化科技有限公司 Folded plate mechanism and automatic plate separating machine with folded plate mechanism
US10969205B2 (en) * 2019-05-03 2021-04-06 Palo Alto Research Center Incorporated Electrically-activated pressure vessels for fracturing frangible structures
CN114558930A (en) * 2022-04-11 2022-05-31 安徽理工大学 Energy-gathered cutting device with variable explosion height

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3076408A (en) * 1958-06-11 1963-02-05 Borg Warner Controlled fracturing of solids by explosives
FR1215794A (en) * 1958-11-18 1960-04-20 Algerienne D Explosifs Et D Ac Directed wavefront explosive charges
US3435763A (en) * 1967-06-20 1969-04-01 Arthur A Lavine Explosive arrangement for generating a mach stem to affect a line cut
DE2832246C2 (en) * 1978-07-22 1987-02-26 Diehl GmbH & Co, 8500 Nürnberg Active body for combating armoured targets
US4408535A (en) * 1980-06-28 1983-10-11 Alflex Limited Explosive cutting means

Also Published As

Publication number Publication date
EP0261119A1 (en) 1988-03-30
AU5908886A (en) 1986-12-24
WO1986007000A1 (en) 1986-12-04
ATE69760T1 (en) 1991-12-15
CA1319353C (en) 1993-06-22
EP0261119B1 (en) 1991-11-27
JPS63500228A (en) 1988-01-28
JP2514943B2 (en) 1996-07-10

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee