US3672033A - Metal laminated material and process for its manufacture - Google Patents

Metal laminated material and process for its manufacture Download PDF

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Publication number
US3672033A
US3672033A US1333A US3672033DA US3672033A US 3672033 A US3672033 A US 3672033A US 1333 A US1333 A US 1333A US 3672033D A US3672033D A US 3672033DA US 3672033 A US3672033 A US 3672033A
Authority
US
United States
Prior art keywords
spacers
metal
sheets
wire
metal sheets
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 - Lifetime
Application number
US1333A
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English (en)
Inventor
Ulf Richter
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.)
Dynamit Nobel AG
Original Assignee
Dynamit Nobel AG
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
Priority claimed from DE19691922757 external-priority patent/DE1922757C/de
Application filed by Dynamit Nobel AG filed Critical Dynamit Nobel AG
Application granted granted Critical
Publication of US3672033A publication Critical patent/US3672033A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/06—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating by means of high energy impulses, e.g. magnetic energy
    • B23K20/08—Explosive welding

Definitions

  • ABSTRACT [30] Foreign Application Priority Data
  • the present disclosure is directed to a laminated metallic May 3, 1969 Germany ..P 19 22 757.7 composite and to a process for the production of said composites which comprises placing metallic spacers between the 52 US.
  • the present invention relates to a laminate metallic material and to a process for the production of a metal laminated material by means of explosive cladding, wherein metallic spacers are inserted between the metallic sheets to be bonded together.
  • the spacers must be fashioned so that they are sufliciently strong to carry the upper sheet. In addition, they must permit the air present between the metal sheets to escape during the blasting step so that no dammed up pressure (pressure surge) is produced. Furthermore, the requirement must be met that the material of the spacers will not be included in the laminated material because such inclusions lead to faults in the laminate.
  • corrugated or zig-zag shaped, bent metal strips are provided which are disposed between the metal sheets to be bonded in an upright position.
  • relatively large inclusions of foreign material in the metal strips result, said material extending in accordance with the shape of the metal strips.
  • the metal strips represent a considerable amount of air resistance. The air displaced from the space upon the collision of the metal sheets can damm up at these places and form eddies, whereby bond flaws are produced.
  • spacers from plastic foam, which spacers can optionally be additionally provided with metallic reinforcements.
  • Such spacers can be employed only in connection with lightweight cover sheets. If the spacers are compressed too strongly at individual points, which can be the case with slightly warped cover sheets, charred spots, and not bonded points, are produced at those places.
  • An object of the present invention is to avoid the prior art disadvantages in the manufacture of metal laminate material.
  • Another object of the present invention is to provide an improved metal laminate material and an explosive bonding or cladding process for the production of a metal laminated material of the above-mentioned type wherein only minor inelusions of foreign material occur in the laminate, thus eliminating the danger of the formation of non-bonded spots or the occurence of tension crack corrosion.
  • the spacer consists of the material of which one of the metal sheets to be bonded is made.
  • the spacer can also consist of another material, insofar as such material does not form any brittle alloys with the metal sheets to be bonded. It is particularly advantageous to employ a soft iron wire for producing the helical shape, said wire being hardened due to the stress produced during coiling.
  • the single FIGURE shows an arrangement of the individual layers of a laminate structure in a sectional view prior to the conductance of the explosive plating step.
  • the lower metal sheet is designated by 1.
  • several helically shaped thin metallic wires 2 are disposed, said wires lying flat in a suitable arrangement. Of these wires, only one is visible in the drawing.
  • the upper sheet 3 On top of these wires rests the upper sheet 3, on top of which, in turn, the layer 4 of explosive material is provided.
  • This layer is equipped with a primer (detonator or igniter) not shown herein, so that the layer can be detonated starting on one side and, during this process, progressively bonds the two metal sheets 1, 3 together.
  • the wire 2 is incorporated into the welding bond and forms a zig-zag shaped inclusions which, however, are kept small due to the small thickness of the wire.
  • the metal wires 2 consist, for example, of a soft iron wire having a thickness of about 0.1 0.8 mm.
  • the wire is stretched and thus hardens (increases in strength), so that the wire which thereafter is also pulled apart in the longitudinal direction can withstand considerable stresses without buckling.
  • the air driven out of the interstice between the sheets does not encounter any resistance, and relatively little foreign material is introduced into the bonding surface, so that no faults are produced.
  • the wires can also be produced of the material of the sheets to be bonded. In this connection, care must be taken to ensure that the wires can bear the weight of the explosive-laden top metal sheet 3, without buckling.
  • the helically shaped wire consisted of a soft iron wire having a diameter of 0.3 mm, coiled into spirals of a diameter of 3 mm. The wire was pulled apart to five times its original length, cut into sections, and these sections were distributed at distances of about 200 to 300 mm from one another over the entire surface area. After the explosive plating, it was found that no faults had been produced, and that the laminated material did not exhibit any raised spots visible on the surface.
  • a copper metal sheet containing, for example, about a 1 mm thickness
  • a soft copper wire having a thickness of, for example, about 0.2 mm, and rolled into spirals having a diameter of, for example, about 2.5 mm.
  • an aluminum metal sheet (grade 1 100), containing a thickness of, for example, about 2 mm can be plated onto carbon steel (C 1008) using a soft iron wire having a thickness of, for example, about 0.15 mm and rolled into spirals having a diameter of, for example, about 3 mm.
  • a process for the production of a laminated metallic material by means of explosive plating which comprises placing metallic spacers between and in supportive contact with a pair of superimposed substantially parallel metal sheets to be bonded, said spacers being wound in a helical shape from a wire with the axis of the helix oriented substantially parallel with respect to the metal sheets, applying a layer of explosive to the upper sheet of metal and detonating said explosive to produce impingement and welding of the upper sheet with the lower sheet.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Laminated Bodies (AREA)
US1333A 1969-05-03 1970-01-08 Metal laminated material and process for its manufacture Expired - Lifetime US3672033A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691922757 DE1922757C (de) 1969-05-03 Verfahren zum Herstellen eines Metall Verbundmatenals

Publications (1)

Publication Number Publication Date
US3672033A true US3672033A (en) 1972-06-27

Family

ID=5733240

Family Applications (1)

Application Number Title Priority Date Filing Date
US1333A Expired - Lifetime US3672033A (en) 1969-05-03 1970-01-08 Metal laminated material and process for its manufacture

Country Status (6)

Country Link
US (1) US3672033A (fr)
JP (1) JPS5231826B1 (fr)
BE (1) BE749669A (fr)
FR (1) FR2047139A5 (fr)
GB (1) GB1288432A (fr)
NL (1) NL7004818A (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4133471A (en) * 1976-11-01 1979-01-09 Asahi Kasei Kogyo Kabushiki Kaisha Method for making clad metal sheets having at least one curved major surface
US4393122A (en) * 1979-04-18 1983-07-12 Akira Takayasu Clad steel plates
US20080277452A1 (en) * 2007-05-11 2008-11-13 Stef Castelijns Method of explosion welding to create an explosion welded article having a non-planar surface
US20090293709A1 (en) * 2008-05-27 2009-12-03 Joynt Vernon P Apparatus for defeating high energy projectiles
US8151685B2 (en) 2006-09-15 2012-04-10 Force Protection Industries, Inc. Apparatus for defeating high energy projectiles
WO2019178598A1 (fr) * 2018-03-16 2019-09-19 Ems Engineered Materials Solutions, Llc Composite à étalement thermique à gaine multicouche

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102489868B (zh) * 2011-12-21 2013-08-14 湖南湘投金天钛金属有限公司 一种圆形钛钢复合板的制备方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3055095A (en) * 1957-11-29 1962-09-25 Jersey Prod Res Co Method of anchoring a well packer reinforcement
US3205574A (en) * 1962-11-01 1965-09-14 Du Pont Explosive bonding
US3233312A (en) * 1962-08-03 1966-02-08 Du Pont Explosively bonded product
US3360848A (en) * 1966-10-17 1968-01-02 Du Pont Process for explosion-bonding metals
US3377693A (en) * 1964-09-24 1968-04-16 Asahi Kaseio Kogyo Kabushiki K Process for producing clad metal plates by explosive bonding

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3055095A (en) * 1957-11-29 1962-09-25 Jersey Prod Res Co Method of anchoring a well packer reinforcement
US3233312A (en) * 1962-08-03 1966-02-08 Du Pont Explosively bonded product
US3205574A (en) * 1962-11-01 1965-09-14 Du Pont Explosive bonding
US3377693A (en) * 1964-09-24 1968-04-16 Asahi Kaseio Kogyo Kabushiki K Process for producing clad metal plates by explosive bonding
US3360848A (en) * 1966-10-17 1968-01-02 Du Pont Process for explosion-bonding metals

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4133471A (en) * 1976-11-01 1979-01-09 Asahi Kasei Kogyo Kabushiki Kaisha Method for making clad metal sheets having at least one curved major surface
US4393122A (en) * 1979-04-18 1983-07-12 Akira Takayasu Clad steel plates
US8151685B2 (en) 2006-09-15 2012-04-10 Force Protection Industries, Inc. Apparatus for defeating high energy projectiles
US20080277452A1 (en) * 2007-05-11 2008-11-13 Stef Castelijns Method of explosion welding to create an explosion welded article having a non-planar surface
US7832614B2 (en) * 2007-05-11 2010-11-16 Eaton Corporation Method of explosion welding to create an explosion welded article having a non-planar shape
US20090293709A1 (en) * 2008-05-27 2009-12-03 Joynt Vernon P Apparatus for defeating high energy projectiles
WO2019178598A1 (fr) * 2018-03-16 2019-09-19 Ems Engineered Materials Solutions, Llc Composite à étalement thermique à gaine multicouche

Also Published As

Publication number Publication date
JPS5231826B1 (fr) 1977-08-17
DE1922757A1 (de) 1970-11-26
FR2047139A5 (fr) 1971-03-12
DE1922757B2 (de) 1972-10-26
BE749669A (fr) 1970-10-01
GB1288432A (fr) 1972-09-06
NL7004818A (fr) 1970-11-05

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