GB923811A - Improvements in and relating to the punching of sheet or strip materials - Google Patents

Improvements in and relating to the punching of sheet or strip materials

Info

Publication number
GB923811A
GB923811A GB1462358A GB1462358A GB923811A GB 923811 A GB923811 A GB 923811A GB 1462358 A GB1462358 A GB 1462358A GB 1462358 A GB1462358 A GB 1462358A GB 923811 A GB923811 A GB 923811A
Authority
GB
United Kingdom
Prior art keywords
punch
die
punching
bevelled
edge
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
GB1462358A
Inventor
Frank Howard
Harold Sydney Warne
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.)
PRODUCTION ENGINEERING RES ASS
Original Assignee
PRODUCTION ENGINEERING RES ASS
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 PRODUCTION ENGINEERING RES ASS filed Critical PRODUCTION ENGINEERING RES ASS
Priority to GB1462358A priority Critical patent/GB923811A/en
Publication of GB923811A publication Critical patent/GB923811A/en
Expired 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
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
    • B21D28/16—Shoulder or burr prevention, e.g. fine-blanking

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Punching Or Piercing (AREA)

Abstract

923,811. Punching. PRODUCTION ENGINEERING RESEARCH ASSOCIATION OF GREAT BRITAIN. May 7, 1959 [May 7, 1958 ; Aug. 18, 1958 ; Oct. 13, 1958], Nos. 14623/58, 26538/58 and 32600/58. Class 83 (4). In a punch-and-die set, the members are so formed that the work 16, Fig. 1, is bent over an abrupt edge 17 at the mouth of the die 11 before any substantial shearing occurs. A convex surface 15 (e.g. part-spherical or having a bevelled or radiused edge, or part-spherical and having a bevelled edge) on the punch may bend the work about the die-opening 17. For blanking, the mouth of the die 11a, Fig. 8, is bevelled at 21a and the end of the punch 13a plane or convex (Fig. 10, not shown). Angles and depths of chamfer are given, and proportions for the punch radius.
GB1462358A 1958-05-07 1958-05-07 Improvements in and relating to the punching of sheet or strip materials Expired GB923811A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1462358A GB923811A (en) 1958-05-07 1958-05-07 Improvements in and relating to the punching of sheet or strip materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1462358A GB923811A (en) 1958-05-07 1958-05-07 Improvements in and relating to the punching of sheet or strip materials

Publications (1)

Publication Number Publication Date
GB923811A true GB923811A (en) 1963-04-18

Family

ID=10044597

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1462358A Expired GB923811A (en) 1958-05-07 1958-05-07 Improvements in and relating to the punching of sheet or strip materials

Country Status (1)

Country Link
GB (1) GB923811A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3393550A (en) * 1966-08-16 1968-07-23 Lockheed Aircraft Corp Curved nose punch
US3576064A (en) * 1968-09-26 1971-04-27 Mc Donnell Douglas Corp Rivet removing tool and method
EP0820821A1 (en) * 1996-07-25 1998-01-28 SOLLAC (Société Anonyme) Process for cutting out a blank from a sheet metal plate
FR2751570A1 (en) * 1996-07-25 1998-01-30 Lorraine Laminage Sheet metal workpiece cutting procedure
WO2005120741A2 (en) * 2004-06-02 2005-12-22 Stefan Fellenberg Method and device for cutting high-tensile sheet metal, and press
JP2009255167A (en) * 2008-03-24 2009-11-05 Nippon Steel Corp Blanking method and device using chamfered die
JP2015193043A (en) * 2014-03-17 2015-11-05 株式会社東亜鍛工所 Manufacturing method of metal plate with hole, perforated metal plate, circumferentially perforated external gear, external gear and metal plate for cam, as well as manufacturing method of metal plate and metal plate
JP2023110246A (en) * 2022-01-28 2023-08-09 株式会社小松精機工作所 Shear processing method of amorphous alloy foil

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3393550A (en) * 1966-08-16 1968-07-23 Lockheed Aircraft Corp Curved nose punch
US3576064A (en) * 1968-09-26 1971-04-27 Mc Donnell Douglas Corp Rivet removing tool and method
EP0820821A1 (en) * 1996-07-25 1998-01-28 SOLLAC (Société Anonyme) Process for cutting out a blank from a sheet metal plate
FR2751570A1 (en) * 1996-07-25 1998-01-30 Lorraine Laminage Sheet metal workpiece cutting procedure
FR2751571A1 (en) * 1996-07-25 1998-01-30 Lorraine Laminage METHOD FOR CUTTING A PIECE IN A FLAN
WO2005120741A2 (en) * 2004-06-02 2005-12-22 Stefan Fellenberg Method and device for cutting high-tensile sheet metal, and press
WO2005120741A3 (en) * 2004-06-02 2006-05-11 Stefan Fellenberg Method and device for cutting high-tensile sheet metal, and press
US8156780B2 (en) 2004-06-02 2012-04-17 Nanoferenz Gmbh Method and device for cutting high-tensile sheet metal, and press
JP2009255167A (en) * 2008-03-24 2009-11-05 Nippon Steel Corp Blanking method and device using chamfered die
JP2015193043A (en) * 2014-03-17 2015-11-05 株式会社東亜鍛工所 Manufacturing method of metal plate with hole, perforated metal plate, circumferentially perforated external gear, external gear and metal plate for cam, as well as manufacturing method of metal plate and metal plate
JP2023110246A (en) * 2022-01-28 2023-08-09 株式会社小松精機工作所 Shear processing method of amorphous alloy foil

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