JPS57206527A - Press working of steel plate and the like - Google Patents

Press working of steel plate and the like

Info

Publication number
JPS57206527A
JPS57206527A JP56089808A JP8980881A JPS57206527A JP S57206527 A JPS57206527 A JP S57206527A JP 56089808 A JP56089808 A JP 56089808A JP 8980881 A JP8980881 A JP 8980881A JP S57206527 A JPS57206527 A JP S57206527A
Authority
JP
Japan
Prior art keywords
hole diameter
steel plate
compress
press
high productivity
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
JP56089808A
Other languages
Japanese (ja)
Inventor
Yoshihiro Abe
Kotaro Yoshida
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP56089808A priority Critical patent/JPS57206527A/en
Publication of JPS57206527A publication Critical patent/JPS57206527A/en
Pending 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
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/02—Stamping using rigid devices or tools

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)

Abstract

PURPOSE:To obtain an object microscopic hole diameter exactly and correctly without dropping the high productivity of a press in the same metallic mold, by compress-working a hole obtained by blanking a steel plate, and reducing its hole diameter. CONSTITUTION:The outside circumference of a hole 5 formed by performing blanking to a steel plate is compress-worked. As a result, it is possible to obtain a hole diameter phialpha3 smaller than a hole diameter phiD5 formed by the previous process. As necessary, this compress-working is repeated, and an object hole diameter is obtained. According to this method, a microscopic hole diameter exceeding a press working limit can be worked with high productivity in a state that high productivity of a press has been utilized.
JP56089808A 1981-06-11 1981-06-11 Press working of steel plate and the like Pending JPS57206527A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56089808A JPS57206527A (en) 1981-06-11 1981-06-11 Press working of steel plate and the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56089808A JPS57206527A (en) 1981-06-11 1981-06-11 Press working of steel plate and the like

Publications (1)

Publication Number Publication Date
JPS57206527A true JPS57206527A (en) 1982-12-17

Family

ID=13981014

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56089808A Pending JPS57206527A (en) 1981-06-11 1981-06-11 Press working of steel plate and the like

Country Status (1)

Country Link
JP (1) JPS57206527A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60127031A (en) * 1983-12-14 1985-07-06 Tokai Rika Co Ltd Method and apparatus for working small hole by press
FR2946555A1 (en) * 2009-06-12 2010-12-17 Snecma METHOD FOR REDUCING THE DIAMETER OF AN ORIFICE
JP2020006413A (en) * 2018-07-10 2020-01-16 有限会社ユース北浦 Method for forming fine hole or fine slit in metal thin plate by press working

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54151747A (en) * 1978-05-22 1979-11-29 Hitachi Ltd Thrust bearing for compressor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54151747A (en) * 1978-05-22 1979-11-29 Hitachi Ltd Thrust bearing for compressor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60127031A (en) * 1983-12-14 1985-07-06 Tokai Rika Co Ltd Method and apparatus for working small hole by press
JPH036852B2 (en) * 1983-12-14 1991-01-31 Tokai Rika Co Ltd
FR2946555A1 (en) * 2009-06-12 2010-12-17 Snecma METHOD FOR REDUCING THE DIAMETER OF AN ORIFICE
JP2020006413A (en) * 2018-07-10 2020-01-16 有限会社ユース北浦 Method for forming fine hole or fine slit in metal thin plate by press working

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