JPS641217B2 - - Google Patents

Info

Publication number
JPS641217B2
JPS641217B2 JP14895183A JP14895183A JPS641217B2 JP S641217 B2 JPS641217 B2 JP S641217B2 JP 14895183 A JP14895183 A JP 14895183A JP 14895183 A JP14895183 A JP 14895183A JP S641217 B2 JPS641217 B2 JP S641217B2
Authority
JP
Japan
Prior art keywords
countersunk
workpiece
hole
lower mold
countersink
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
JP14895183A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6040620A (ja
Inventor
Sueji Abe
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.)
Nippon Light Metal Co Ltd
Original Assignee
Nippon Light Metal 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 Nippon Light Metal Co Ltd filed Critical Nippon Light Metal Co Ltd
Priority to JP14895183A priority Critical patent/JPS6040620A/ja
Publication of JPS6040620A publication Critical patent/JPS6040620A/ja
Publication of JPS641217B2 publication Critical patent/JPS641217B2/ja
Granted 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Punching Or Piercing (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
JP14895183A 1983-08-15 1983-08-15 皿絞り孔明け加工法 Granted JPS6040620A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14895183A JPS6040620A (ja) 1983-08-15 1983-08-15 皿絞り孔明け加工法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14895183A JPS6040620A (ja) 1983-08-15 1983-08-15 皿絞り孔明け加工法

Publications (2)

Publication Number Publication Date
JPS6040620A JPS6040620A (ja) 1985-03-04
JPS641217B2 true JPS641217B2 (enrdf_load_stackoverflow) 1989-01-10

Family

ID=15464298

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14895183A Granted JPS6040620A (ja) 1983-08-15 1983-08-15 皿絞り孔明け加工法

Country Status (1)

Country Link
JP (1) JPS6040620A (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023127479A1 (ja) * 2021-12-28 2023-07-06 日本製鉄株式会社 加工装置、金属製部材の製造方法、及び金属製部材

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55106741A (en) * 1979-01-31 1980-08-15 Diesel Kiki Co Ltd Metal plate drilling method

Also Published As

Publication number Publication date
JPS6040620A (ja) 1985-03-04

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