JPS58177211A - センタ穴の加工方法 - Google Patents

センタ穴の加工方法

Info

Publication number
JPS58177211A
JPS58177211A JP5721982A JP5721982A JPS58177211A JP S58177211 A JPS58177211 A JP S58177211A JP 5721982 A JP5721982 A JP 5721982A JP 5721982 A JP5721982 A JP 5721982A JP S58177211 A JPS58177211 A JP S58177211A
Authority
JP
Japan
Prior art keywords
workpiece
punch
center hole
work
punches
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.)
Granted
Application number
JP5721982A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6121765B2 (enExample
Inventor
Yoshio Hashimoto
橋本　義男
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.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor Co 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 Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Priority to JP5721982A priority Critical patent/JPS58177211A/ja
Publication of JPS58177211A publication Critical patent/JPS58177211A/ja
Publication of JPS6121765B2 publication Critical patent/JPS6121765B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B49/00—Measuring or gauging equipment on boring machines for positioning or guiding the drill; Devices for indicating failure of drills during boring; Centering devices for holes to be bored
    • B23B49/04—Devices for boring or drilling centre holes in workpieces

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling And Boring (AREA)
JP5721982A 1982-04-08 1982-04-08 センタ穴の加工方法 Granted JPS58177211A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5721982A JPS58177211A (ja) 1982-04-08 1982-04-08 センタ穴の加工方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5721982A JPS58177211A (ja) 1982-04-08 1982-04-08 センタ穴の加工方法

Publications (2)

Publication Number Publication Date
JPS58177211A true JPS58177211A (ja) 1983-10-17
JPS6121765B2 JPS6121765B2 (enExample) 1986-05-28

Family

ID=13049412

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5721982A Granted JPS58177211A (ja) 1982-04-08 1982-04-08 センタ穴の加工方法

Country Status (1)

Country Link
JP (1) JPS58177211A (enExample)

Also Published As

Publication number Publication date
JPS6121765B2 (enExample) 1986-05-28

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