JPS55165236A - Press blanking method - Google Patents

Press blanking method

Info

Publication number
JPS55165236A
JPS55165236A JP7278179A JP7278179A JPS55165236A JP S55165236 A JPS55165236 A JP S55165236A JP 7278179 A JP7278179 A JP 7278179A JP 7278179 A JP7278179 A JP 7278179A JP S55165236 A JPS55165236 A JP S55165236A
Authority
JP
Japan
Prior art keywords
punch
work
blank
die
plate
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
JP7278179A
Other languages
Japanese (ja)
Inventor
Junichi Miyazaki
Mitsuo Terajima
Original Assignee
Nippon Denso 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 Denso Co Ltd filed Critical Nippon Denso Co Ltd
Priority to JP7278179A priority Critical patent/JPS55165236A/en
Publication of JPS55165236A publication Critical patent/JPS55165236A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To make possible the press blanking having no burr-form protrusions by embossing the work into the punch die hole of the resembling shape larger by the specified size than the die hole conforming to the part shape, thence striking it off by a punch thereby forming curved parts at the corner parts of both faces.
CONSTITUTION: The rolled work 1 is sandwiched by a die plate 2 and cushion plate 3 and the work 1 is embossed as a blank 1b into a die hole 2a by an embossing punch 4 slightly larger than the die hole 2a of the die plate 2 conforming to the part shape to form a curved face part 1c at the corner part. The slight clearance between the punch 4 and die plate 2 obviates the separation of the work 1 and blank 1b. Thence, the work 1 with the blank 1b is sandwiched by the plate 11 and die plate 13 in a separate process and the blank 1b is striken off into the die hole 12a by a punch 14, whereby a curved face part 1d is formed on the bottom surface. These make possible pressing free from burr production and yield the worked product of good quality from thin sheet-form material.
COPYRIGHT: (C)1980,JPO&Japio
JP7278179A 1979-06-08 1979-06-08 Press blanking method Pending JPS55165236A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7278179A JPS55165236A (en) 1979-06-08 1979-06-08 Press blanking method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7278179A JPS55165236A (en) 1979-06-08 1979-06-08 Press blanking method

Publications (1)

Publication Number Publication Date
JPS55165236A true JPS55165236A (en) 1980-12-23

Family

ID=13499266

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7278179A Pending JPS55165236A (en) 1979-06-08 1979-06-08 Press blanking method

Country Status (1)

Country Link
JP (1) JPS55165236A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08336798A (en) * 1995-06-09 1996-12-24 Nec Corp Punching method without generating burr
KR101077464B1 (en) * 2009-04-15 2011-10-27 나라엠앤디(주) Stator core producetion apparatus and method of drum washing machine
JP2016210154A (en) * 2015-05-13 2016-12-15 株式会社大貫工業所 Joint method of metal component and resin and integrated mold article of metal component and resin

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50101986A (en) * 1974-01-12 1975-08-12

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50101986A (en) * 1974-01-12 1975-08-12

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08336798A (en) * 1995-06-09 1996-12-24 Nec Corp Punching method without generating burr
KR101077464B1 (en) * 2009-04-15 2011-10-27 나라엠앤디(주) Stator core producetion apparatus and method of drum washing machine
JP2016210154A (en) * 2015-05-13 2016-12-15 株式会社大貫工業所 Joint method of metal component and resin and integrated mold article of metal component and resin

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