JPS51116489A - Method and apparatus for press drilling - Google Patents

Method and apparatus for press drilling

Info

Publication number
JPS51116489A
JPS51116489A JP4027375A JP4027375A JPS51116489A JP S51116489 A JPS51116489 A JP S51116489A JP 4027375 A JP4027375 A JP 4027375A JP 4027375 A JP4027375 A JP 4027375A JP S51116489 A JPS51116489 A JP S51116489A
Authority
JP
Japan
Prior art keywords
press drilling
drilling
press
deformation
working
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.)
Pending
Application number
JP4027375A
Other languages
Japanese (ja)
Inventor
Masashi Yaegashi
Akira Kobayashi
Naoichi Ando
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP4027375A priority Critical patent/JPS51116489A/en
Publication of JPS51116489A publication Critical patent/JPS51116489A/en
Pending legal-status Critical Current

Links

Landscapes

  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Punching Or Piercing (AREA)

Abstract

PURPOSE: To accurately drill a work of very narrow width of machine almost without deformation after working in short time.
COPYRIGHT: (C)1976,JPO&Japio
JP4027375A 1975-04-04 1975-04-04 Method and apparatus for press drilling Pending JPS51116489A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4027375A JPS51116489A (en) 1975-04-04 1975-04-04 Method and apparatus for press drilling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4027375A JPS51116489A (en) 1975-04-04 1975-04-04 Method and apparatus for press drilling

Publications (1)

Publication Number Publication Date
JPS51116489A true JPS51116489A (en) 1976-10-13

Family

ID=12576015

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4027375A Pending JPS51116489A (en) 1975-04-04 1975-04-04 Method and apparatus for press drilling

Country Status (1)

Country Link
JP (1) JPS51116489A (en)

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