JPS59110431A - Press punching die of thin plate - Google Patents

Press punching die of thin plate

Info

Publication number
JPS59110431A
JPS59110431A JP22137882A JP22137882A JPS59110431A JP S59110431 A JPS59110431 A JP S59110431A JP 22137882 A JP22137882 A JP 22137882A JP 22137882 A JP22137882 A JP 22137882A JP S59110431 A JPS59110431 A JP S59110431A
Authority
JP
Japan
Prior art keywords
die
thin plate
punch hole
punching
press punching
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
JP22137882A
Other languages
Japanese (ja)
Inventor
Toshio Watanabe
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.)
Tanaka Kikinzoku Kogyo KK
Original Assignee
Tanaka Kikinzoku Kogyo KK
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 Tanaka Kikinzoku Kogyo KK filed Critical Tanaka Kikinzoku Kogyo KK
Priority to JP22137882A priority Critical patent/JPS59110431A/en
Publication of JPS59110431A publication Critical patent/JPS59110431A/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
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/24—Perforating, i.e. punching holes
    • B21D28/34—Perforating tools; Die holders

Abstract

PURPOSE:To prevent exactly a punching material of a thin plate from floating by providing a hard film on the lower circumferential wall which exceeds a punching stroke of a punch hole of a die, and reducing a sectional area, in a die of a metallic die. CONSTITUTION:In a press punching metallic die consisting of a blanking punch 1 and a die 4, a hard film 9 of TiC, TiN, etc. is provided on the lower circumferential wall which exceeds a punching stroke of a punch hole 5 of this die 4, and the lower sectional area of the punch hole 5 is reduced. In this way, a product obtained by blanking a thin plate 3 or a material such as a scrap, etc. are pushed into the lower part of the punch hole 5, and its floating can be prevented exactly.
JP22137882A 1982-12-17 1982-12-17 Press punching die of thin plate Pending JPS59110431A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22137882A JPS59110431A (en) 1982-12-17 1982-12-17 Press punching die of thin plate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22137882A JPS59110431A (en) 1982-12-17 1982-12-17 Press punching die of thin plate

Publications (1)

Publication Number Publication Date
JPS59110431A true JPS59110431A (en) 1984-06-26

Family

ID=16765844

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22137882A Pending JPS59110431A (en) 1982-12-17 1982-12-17 Press punching die of thin plate

Country Status (1)

Country Link
JP (1) JPS59110431A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5417133A (en) * 1994-02-22 1995-05-23 The Whitaker Corporation Scrap handling in a blanking die
US7832539B2 (en) 2005-01-26 2010-11-16 Nsk-Warner K. K. Multiple disc clutch apparatus

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5139881B2 (en) * 1972-08-11 1976-10-30
JPS533941B2 (en) * 1973-03-01 1978-02-13

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5139881B2 (en) * 1972-08-11 1976-10-30
JPS533941B2 (en) * 1973-03-01 1978-02-13

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5417133A (en) * 1994-02-22 1995-05-23 The Whitaker Corporation Scrap handling in a blanking die
US7832539B2 (en) 2005-01-26 2010-11-16 Nsk-Warner K. K. Multiple disc clutch apparatus

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