GB637028A - Improvements in or relating to punches for piercing sheet material - Google Patents

Improvements in or relating to punches for piercing sheet material

Info

Publication number
GB637028A
GB637028A GB2972547A GB2972547A GB637028A GB 637028 A GB637028 A GB 637028A GB 2972547 A GB2972547 A GB 2972547A GB 2972547 A GB2972547 A GB 2972547A GB 637028 A GB637028 A GB 637028A
Authority
GB
United Kingdom
Prior art keywords
punches
relating
grinding
sheet material
wheel
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
GB2972547A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB2972547A priority Critical patent/GB637028A/en
Publication of GB637028A publication Critical patent/GB637028A/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
    • B21D28/24—Perforating, i.e. punching holes
    • B21D28/34—Perforating tools; Die holders

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Abstract

637,028. Grinding. KOPCZYNSKI, J. F., and KING, R. H. Nov. 7, 1947, No. 29725. [Class 60] [Also in Group XXII] A punching tool 1 may be ground with a taper 8 and reduced portion 6 on a lathe by a highspeed grinding-wheel 20 on the tool stock, the work being held in the slowly-rotating chuck. The grinding-wheel 20 has its axis at right-angles to the axis of the work in order to obtain a longitudinal grain.
GB2972547A 1947-11-07 1947-11-07 Improvements in or relating to punches for piercing sheet material Expired GB637028A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2972547A GB637028A (en) 1947-11-07 1947-11-07 Improvements in or relating to punches for piercing sheet material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2972547A GB637028A (en) 1947-11-07 1947-11-07 Improvements in or relating to punches for piercing sheet material

Publications (1)

Publication Number Publication Date
GB637028A true GB637028A (en) 1950-05-10

Family

ID=10296123

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2972547A Expired GB637028A (en) 1947-11-07 1947-11-07 Improvements in or relating to punches for piercing sheet material

Country Status (1)

Country Link
GB (1) GB637028A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109047461A (en) * 2018-07-16 2018-12-21 温州职业技术学院 A kind of diel for punching plates

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109047461A (en) * 2018-07-16 2018-12-21 温州职业技术学院 A kind of diel for punching plates

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