JPS569023A - Simple blanking die - Google Patents

Simple blanking die

Info

Publication number
JPS569023A
JPS569023A JP8499879A JP8499879A JPS569023A JP S569023 A JPS569023 A JP S569023A JP 8499879 A JP8499879 A JP 8499879A JP 8499879 A JP8499879 A JP 8499879A JP S569023 A JPS569023 A JP S569023A
Authority
JP
Japan
Prior art keywords
die
punch
plate
blanking
blanked
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
JP8499879A
Other languages
Japanese (ja)
Inventor
Tokuya Hirayama
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP8499879A priority Critical patent/JPS569023A/en
Publication of JPS569023A publication Critical patent/JPS569023A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: A simple blanking die which is obtained by simultaneously blanking two or more sheets of metal plates laminated on a base die by a punch and which is easy to manufacture and permits precision shearing without requiring any skill.
CONSTITUTION: A base die 4 has a punch 1 and a large clearance of about 0.6mm, and does not require high accuracy of contour sizes and does not require any heat treatment either. A hard metal plate 2 and an auxiliary laminated plate 3 of the same quality as this or softer than this which are fixed to each other by means of screws or the like are placed on this. When the die 2 and the plate 3 are simultaneously blanked by the punch 1 and the base die 4, the blanking force from the punch 1 and the reaction force from the plate 3 act upon the die 2, causing the die 2 to be compressed in the plate thickness direction. As a result, the occurrence of cracking near the punch biting part of the die is suppressed. On the other hand, the resistance against the deformation at the blanking becomes high because the plates 2, 3 are superposed and blanked. Accordingly, a blanked face of small deformation, good sectional characteristic and of the same contour size as that of the punch 1 is formed in the die 2 and this is used as a die cutting blade.
COPYRIGHT: (C)1981,JPO&Japio
JP8499879A 1979-07-06 1979-07-06 Simple blanking die Pending JPS569023A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8499879A JPS569023A (en) 1979-07-06 1979-07-06 Simple blanking die

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8499879A JPS569023A (en) 1979-07-06 1979-07-06 Simple blanking die

Publications (1)

Publication Number Publication Date
JPS569023A true JPS569023A (en) 1981-01-29

Family

ID=13846289

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8499879A Pending JPS569023A (en) 1979-07-06 1979-07-06 Simple blanking die

Country Status (1)

Country Link
JP (1) JPS569023A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5837993A (en) * 1981-08-31 1983-03-05 Toray Industries Method of producing both-side circuit board
JP2001121221A (en) * 1999-10-21 2001-05-08 Amada Co Ltd Manufacturing method of blanking die and blanking die

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5837993A (en) * 1981-08-31 1983-03-05 Toray Industries Method of producing both-side circuit board
JP2001121221A (en) * 1999-10-21 2001-05-08 Amada Co Ltd Manufacturing method of blanking die and blanking die

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