ATE69760T1 - METHOD AND DEVICE FOR CUTTING WITH EXPLOSIVES. - Google Patents

METHOD AND DEVICE FOR CUTTING WITH EXPLOSIVES.

Info

Publication number
ATE69760T1
ATE69760T1 AT86903480T AT86903480T ATE69760T1 AT E69760 T1 ATE69760 T1 AT E69760T1 AT 86903480 T AT86903480 T AT 86903480T AT 86903480 T AT86903480 T AT 86903480T AT E69760 T1 ATE69760 T1 AT E69760T1
Authority
AT
Austria
Prior art keywords
explosive
strip
target
shock wave
wave
Prior art date
Application number
AT86903480T
Other languages
German (de)
Inventor
Sidney Christopher Alford
Peter Christian Shann
Original Assignee
Explosive Dev 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 Dev Ltd filed Critical Explosive Dev Ltd
Application granted granted Critical
Publication of ATE69760T1 publication Critical patent/ATE69760T1/en

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

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.
AT86903480T 1985-05-28 1986-05-27 METHOD AND DEVICE FOR CUTTING WITH EXPLOSIVES. ATE69760T1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB8513325 1985-05-28
EP86903480A EP0261119B1 (en) 1985-05-28 1986-05-27 Explosive cutting means
PCT/GB1986/000292 WO1986007000A1 (en) 1985-05-28 1986-05-27 Explosive cutting means

Publications (1)

Publication Number Publication Date
ATE69760T1 true ATE69760T1 (en) 1991-12-15

Family

ID=10579714

Family Applications (1)

Application Number Title Priority Date Filing Date
AT86903480T ATE69760T1 (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 (7)

* 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
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
DE2832246A1 (en) * 1978-07-22 1982-10-28 Diehl GmbH & Co, 8500 Nürnberg BLASTING BODY
US4408535A (en) * 1980-06-28 1983-10-11 Alflex Limited Explosive cutting means

Also Published As

Publication number Publication date
WO1986007000A1 (en) 1986-12-04
JPS63500228A (en) 1988-01-28
JP2514943B2 (en) 1996-07-10
CA1319353C (en) 1993-06-22
DE3682681D1 (en) 1992-01-09
AU5908886A (en) 1986-12-24
EP0261119A1 (en) 1988-03-30
EP0261119B1 (en) 1991-11-27

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Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
REN Ceased due to non-payment of the annual fee