JPS51116488A - Method of forming counter sink on metallic plate - Google Patents

Method of forming counter sink on metallic plate

Info

Publication number
JPS51116488A
JPS51116488A JP50041588A JP4158875A JPS51116488A JP S51116488 A JPS51116488 A JP S51116488A JP 50041588 A JP50041588 A JP 50041588A JP 4158875 A JP4158875 A JP 4158875A JP S51116488 A JPS51116488 A JP S51116488A
Authority
JP
Japan
Prior art keywords
metallic plate
counter sink
forming counter
forming
sink
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
JP50041588A
Other languages
Japanese (ja)
Inventor
Yoshio Terasawa
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP50041588A priority Critical patent/JPS51116488A/en
Publication of JPS51116488A publication Critical patent/JPS51116488A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE:To form a counter sink without back indentation by a plastic working of metallic plate particularly thin plate.
JP50041588A 1975-04-05 1975-04-05 Method of forming counter sink on metallic plate Pending JPS51116488A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50041588A JPS51116488A (en) 1975-04-05 1975-04-05 Method of forming counter sink on metallic plate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50041588A JPS51116488A (en) 1975-04-05 1975-04-05 Method of forming counter sink on metallic plate

Publications (1)

Publication Number Publication Date
JPS51116488A true JPS51116488A (en) 1976-10-13

Family

ID=12612572

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50041588A Pending JPS51116488A (en) 1975-04-05 1975-04-05 Method of forming counter sink on metallic plate

Country Status (1)

Country Link
JP (1) JPS51116488A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5431033U (en) * 1977-08-03 1979-03-01
JPS6082230A (en) * 1983-10-05 1985-05-10 Hitachi Ltd Counterboring method for countersunk screws
JPH044932A (en) * 1990-04-03 1992-01-09 Nhk Spring Co Ltd Structure of hole for fixing screw of metallic base board and its working method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5171868A (en) * 1974-12-20 1976-06-22 Mitsui Mining & Smelting Co Toritsukebanni okeru saraanajotoritsukeanano seikeihoho

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5171868A (en) * 1974-12-20 1976-06-22 Mitsui Mining & Smelting Co Toritsukebanni okeru saraanajotoritsukeanano seikeihoho

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5431033U (en) * 1977-08-03 1979-03-01
JPS6082230A (en) * 1983-10-05 1985-05-10 Hitachi Ltd Counterboring method for countersunk screws
JPH044932A (en) * 1990-04-03 1992-01-09 Nhk Spring Co Ltd Structure of hole for fixing screw of metallic base board and its working method

Similar Documents

Publication Publication Date Title
AU1305876A (en) Cyanide free zinc plate
JPS51116488A (en) Method of forming counter sink on metallic plate
GB1229005A (en)
JPS5299961A (en) Method of forming plate material by shottpeening
JPS527771A (en) Electronic timepiece with keyboard
JPS5440590A (en) Miniature crystal vibrator for contour vibration
ES308955A1 (en) Procedure to produce an open drawing on a plastic sheet. (Machine-translation by Google Translate, not legally binding)
JPS5322467A (en) Electronic watch
JPS5234757A (en) Character plate and process for the fabrication thereof
JPS5215496A (en) Method for production of ferrous nitrate
JPS5220295A (en) Method of manufactur of magnetic thin film
JPS5237282A (en) Method and apparatus for machining cam surfaces
JPS529194A (en) Manufacturing method for directivity reflection plate
JPS542068A (en) Manufacture for semiconductor device
JPS53106009A (en) Magnetic head
JPS52147211A (en) Production of piston of divided type
CA1001453A (en) Nickel-lanthanum alloy produced by a reduction-diffusion process
JPS5218414A (en) Process for annealing of laminated thin plates
JPS51131355A (en) Watch face
JPS5219285A (en) Method of manufacturing terminal plate material
JPS51115288A (en) Method of preparing compound film
JPS51121487A (en) Apparatus for producing a thin film
JPS51146176A (en) Basic plate for diode device
JPS5252287A (en) Skew material producting device
JPS5219377A (en) Press-forming device of wooden thin plate

Legal Events

Date Code Title Description
R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

FPAY Renewal fee payment (prs date is renewal date of database)

Free format text: PAYMENT UNTIL: 20070810

Year of fee payment: 13

FPAY Renewal fee payment (prs date is renewal date of database)

Free format text: PAYMENT UNTIL: 20080810

Year of fee payment: 14

EXPY Cancellation because of completion of term
FPAY Renewal fee payment (prs date is renewal date of database)

Year of fee payment: 14

Free format text: PAYMENT UNTIL: 20080810