FR2243589A5 - Method of punching holes in metal sheet - uses fluid press. applied against sheet lying over apertured matrix - Google Patents

Method of punching holes in metal sheet - uses fluid press. applied against sheet lying over apertured matrix

Info

Publication number
FR2243589A5
FR2243589A5 FR7332572A FR7332572A FR2243589A5 FR 2243589 A5 FR2243589 A5 FR 2243589A5 FR 7332572 A FR7332572 A FR 7332572A FR 7332572 A FR7332572 A FR 7332572A FR 2243589 A5 FR2243589 A5 FR 2243589A5
Authority
FR
France
Prior art keywords
matrix
sheet
fluid
metal sheet
applied against
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
Application number
FR7332572A
Other languages
French (fr)
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.)
Centre Technique des Industries Mecaniques CETIM
Original Assignee
Centre Technique des Industries Mecaniques CETIM
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 Centre Technique des Industries Mecaniques CETIM filed Critical Centre Technique des Industries Mecaniques CETIM
Priority to FR7332572A priority Critical patent/FR2243589A5/en
Application granted granted Critical
Publication of FR2243589A5 publication Critical patent/FR2243589A5/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/0015—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor specially adapted for perforating tubes
    • 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
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/24—Perforating, i.e. punching holes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/26—Perforating by non-mechanical means, e.g. by fluid jet

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Drilling Tools (AREA)

Abstract

Fluid pressure punc-cutter of light gauge metal sheet utilizes the fluid to effect cutting, thus obviating the frequent tool sharpening involved in the stamping light gauge sheet. The workpiece is placed on a matrix, fluid pressure applied and the cut executed in conformity with the apertures in the matrix. Typically the matrix (2), a round ended tube with wall slots (4), is sheathed by the workpiece (6) and placed in water tight chamber (8) which is filled with non-compressible liquid (10). High pressure instantaneously applied to the fluid then executes the cut, areas of sheet spanning the matrix wall slots being sheared into the air filled matrix core (22).
FR7332572A 1973-09-11 1973-09-11 Method of punching holes in metal sheet - uses fluid press. applied against sheet lying over apertured matrix Expired FR2243589A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7332572A FR2243589A5 (en) 1973-09-11 1973-09-11 Method of punching holes in metal sheet - uses fluid press. applied against sheet lying over apertured matrix

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7332572A FR2243589A5 (en) 1973-09-11 1973-09-11 Method of punching holes in metal sheet - uses fluid press. applied against sheet lying over apertured matrix

Publications (1)

Publication Number Publication Date
FR2243589A5 true FR2243589A5 (en) 1975-04-04

Family

ID=9124844

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7332572A Expired FR2243589A5 (en) 1973-09-11 1973-09-11 Method of punching holes in metal sheet - uses fluid press. applied against sheet lying over apertured matrix

Country Status (1)

Country Link
FR (1) FR2243589A5 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0211293A2 (en) * 1985-07-24 1987-02-25 Fib Oy A method and a device for the formation of a hole in a plastic pipe
EP0635162A1 (en) * 1992-04-10 1995-01-25 Silicon Video Corporation Self supporting flat video display
WO1996005458A1 (en) * 1994-08-15 1996-02-22 Whitbread Plc Method and apparatus for the manufacture of duckbill valves

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0211293A2 (en) * 1985-07-24 1987-02-25 Fib Oy A method and a device for the formation of a hole in a plastic pipe
EP0211293A3 (en) * 1985-07-24 1989-03-08 Fib Oy A method and a device for the formation of a hole in a plastic pipe
EP0635162A1 (en) * 1992-04-10 1995-01-25 Silicon Video Corporation Self supporting flat video display
EP0635162A4 (en) * 1992-04-10 1997-04-16 Silicon Video Corp Self supporting flat video display.
WO1996005458A1 (en) * 1994-08-15 1996-02-22 Whitbread Plc Method and apparatus for the manufacture of duckbill valves
US5897828A (en) * 1994-08-15 1999-04-27 Whitbread, Plc Method and apparatus for the manufacture of duckbill valves

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Legal Events

Date Code Title Description
ST Notification of lapse