JPS6128443B2 - - Google Patents

Info

Publication number
JPS6128443B2
JPS6128443B2 JP6952382A JP6952382A JPS6128443B2 JP S6128443 B2 JPS6128443 B2 JP S6128443B2 JP 6952382 A JP6952382 A JP 6952382A JP 6952382 A JP6952382 A JP 6952382A JP S6128443 B2 JPS6128443 B2 JP S6128443B2
Authority
JP
Japan
Prior art keywords
punch
workpiece
center hole
primary
machining
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
JP6952382A
Other languages
English (en)
Japanese (ja)
Other versions
JPS58186510A (ja
Inventor
Yoshio Hashimoto
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 JP6952382A priority Critical patent/JPS58186510A/ja
Publication of JPS58186510A publication Critical patent/JPS58186510A/ja
Publication of JPS6128443B2 publication Critical patent/JPS6128443B2/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)
  • Percussive Tools And Related Accessories (AREA)
  • Drilling And Boring (AREA)
JP6952382A 1982-04-27 1982-04-27 センタ穴の加工方法 Granted JPS58186510A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6952382A JPS58186510A (ja) 1982-04-27 1982-04-27 センタ穴の加工方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6952382A JPS58186510A (ja) 1982-04-27 1982-04-27 センタ穴の加工方法

Publications (2)

Publication Number Publication Date
JPS58186510A JPS58186510A (ja) 1983-10-31
JPS6128443B2 true JPS6128443B2 (enExample) 1986-06-30

Family

ID=13405161

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6952382A Granted JPS58186510A (ja) 1982-04-27 1982-04-27 センタ穴の加工方法

Country Status (1)

Country Link
JP (1) JPS58186510A (enExample)

Also Published As

Publication number Publication date
JPS58186510A (ja) 1983-10-31

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