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EP1044740A3 - Method for manufacture of articles in foraminous sheet materials - Google Patents

Method for manufacture of articles in foraminous sheet materials Download PDF

Info

Publication number
EP1044740A3
EP1044740A3 EP00102519A EP00102519A EP1044740A3 EP 1044740 A3 EP1044740 A3 EP 1044740A3 EP 00102519 A EP00102519 A EP 00102519A EP 00102519 A EP00102519 A EP 00102519A EP 1044740 A3 EP1044740 A3 EP 1044740A3
Authority
EP
European Patent Office
Prior art keywords
sheet
former
interlocking
margins
expanded metal
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.)
Withdrawn
Application number
EP00102519A
Other languages
German (de)
French (fr)
Other versions
EP1044740A2 (en
Inventor
Ian D Kernot
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.)
Meltog Ltd
Original Assignee
Meltog 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 Meltog Ltd filed Critical Meltog Ltd
Publication of EP1044740A2 publication Critical patent/EP1044740A2/en
Publication of EP1044740A3 publication Critical patent/EP1044740A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D31/00—Other methods for working sheet metal, metal tubes, metal profiles
    • B21D31/04—Expanding other than provided for in groups B21D1/00 - B21D28/00, e.g. for making expanded metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/156—Making tubes with wall irregularities
    • B21C37/157—Perforations

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Abstract

A method of producing cylindrical expanded metal sections is disclosed wherein a sheet of metal is continuously punched between interlocking discs to create staggered rows of slits. The sheet is only punched between its edges at which unpunched margins are defined. The sheet is expanded laterally and provided with oppositely formed interlocking formations in the unpunched margins, and then the sheet is helically wound over a former with the interlocking formations on opposite margins of the sheet being interlocked on the former as the said two opposite margins are brought together as a result of the helical winding. A compression means is provided immediately behind the interlocking region on the former to create a helical seam. The cylindrical expanded metal section is moved along the former and eventually cut into lengths by a cylindrical cutter. The formation of expanded metal sections in this manner prevents the creation of swarf when the section is cut to length, as previously only the expanded metal strands were provided with interlocking formations, and cutting through these often produced unwanted loose swarf or metal cuttings.
EP00102519A 1999-03-18 2000-02-07 Method for manufacture of articles in foraminous sheet materials Withdrawn EP1044740A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9906375.2A GB9906375D0 (en) 1999-03-18 1999-03-18 Method for manufacture of articles in foraminous sheet materials
GB9906375 1999-03-18

Publications (2)

Publication Number Publication Date
EP1044740A2 EP1044740A2 (en) 2000-10-18
EP1044740A3 true EP1044740A3 (en) 2002-03-20

Family

ID=10849976

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00102519A Withdrawn EP1044740A3 (en) 1999-03-18 2000-02-07 Method for manufacture of articles in foraminous sheet materials

Country Status (2)

Country Link
EP (1) EP1044740A3 (en)
GB (1) GB9906375D0 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL1945386T3 (en) * 2005-09-20 2017-07-31 Helix International, Inc Machine and method to produce expanded metal spirally lock-seamed tubing from solid coil stock
US8613993B2 (en) * 2009-11-12 2013-12-24 Kucharco Corporation Expandable web material

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1071638B (en) * 1959-12-24 Hein, Lehmann fx Co. Aktiengesellschaft, Düsseldorf Process for the manufacture of filter tubes
DE2651714A1 (en) * 1976-11-12 1978-05-24 Reinhold Mendritzki U Co Kaltw Continuous rolling of strip into profile - is esp. for closed profiles such as tubes in which strip is first grooved
US4664684A (en) * 1986-01-30 1987-05-12 Cummins Engine Company, Inc. Air filter unit
EP0353622A1 (en) * 1988-08-02 1990-02-07 Meltog Limited Apparatus for forming perforated tubes

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1071638B (en) * 1959-12-24 Hein, Lehmann fx Co. Aktiengesellschaft, Düsseldorf Process for the manufacture of filter tubes
DE2651714A1 (en) * 1976-11-12 1978-05-24 Reinhold Mendritzki U Co Kaltw Continuous rolling of strip into profile - is esp. for closed profiles such as tubes in which strip is first grooved
US4664684A (en) * 1986-01-30 1987-05-12 Cummins Engine Company, Inc. Air filter unit
EP0353622A1 (en) * 1988-08-02 1990-02-07 Meltog Limited Apparatus for forming perforated tubes

Also Published As

Publication number Publication date
GB9906375D0 (en) 1999-05-12
EP1044740A2 (en) 2000-10-18

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