WO2008084536A1 - Method of working platelike material and die assembly - Google Patents

Method of working platelike material and die assembly Download PDF

Info

Publication number
WO2008084536A1
WO2008084536A1 PCT/JP2007/050192 JP2007050192W WO2008084536A1 WO 2008084536 A1 WO2008084536 A1 WO 2008084536A1 JP 2007050192 W JP2007050192 W JP 2007050192W WO 2008084536 A1 WO2008084536 A1 WO 2008084536A1
Authority
WO
WIPO (PCT)
Prior art keywords
working
face
piercing
protrudent
platelike material
Prior art date
Application number
PCT/JP2007/050192
Other languages
French (fr)
Japanese (ja)
Inventor
Hisayoshi Kidoh
Yuichi Utsumi
Original Assignee
Hidaka Seiki Kabushiki Kaisha
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 Hidaka Seiki Kabushiki Kaisha filed Critical Hidaka Seiki Kabushiki Kaisha
Priority to PCT/JP2007/050192 priority Critical patent/WO2008084536A1/en
Publication of WO2008084536A1 publication Critical patent/WO2008084536A1/en

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
    • B21D28/343—Draw punches
    • 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
    • B21D22/04—Stamping using rigid devices or tools for dimpling
    • 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

Abstract

A method of working that attains assured prevention of scrap upping and ensures fair through punching. There is provided a method of working, comprising the forming step (a) of applying forming punch (60) to platelike material (11) so as to form protrudent portion (3) projecting on its one major surface side and the piercing step (b) of with the use of piercing punch (72), through punching end face (3a) of the formed protrudent portion (3) so as to make a through-hole, thereby obtaining platelike material (11) having a through-hole formed in the center portion of the end face (3a) of the protrudent portion (3), wherein in the forming step (a) prior to the piercing step (b), convex portion (3b) or concave portion for reducing of the area of contact of the piercing punch (72) with the end face (3a) is formed on the end face (3a) of the protrudent portion (3) formed.
PCT/JP2007/050192 2007-01-11 2007-01-11 Method of working platelike material and die assembly WO2008084536A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/050192 WO2008084536A1 (en) 2007-01-11 2007-01-11 Method of working platelike material and die assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/050192 WO2008084536A1 (en) 2007-01-11 2007-01-11 Method of working platelike material and die assembly

Publications (1)

Publication Number Publication Date
WO2008084536A1 true WO2008084536A1 (en) 2008-07-17

Family

ID=39608439

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/050192 WO2008084536A1 (en) 2007-01-11 2007-01-11 Method of working platelike material and die assembly

Country Status (1)

Country Link
WO (1) WO2008084536A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130152656A1 (en) * 2011-12-19 2013-06-20 Ricoh Company, Ltd. Thin plate burring processing method and thin plate female screw-forming method
CN108115056A (en) * 2017-12-26 2018-06-05 东风汽车有限公司 Material returning plate of precision stamping die

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0523755A (en) * 1991-07-22 1993-02-02 Kobe Steel Ltd Punching method for metallic plate and die
JPH05228545A (en) * 1991-03-06 1993-09-07 Hitachi Cable Ltd Punching method
JP2000135522A (en) * 1998-10-29 2000-05-16 Mitsui High Tec Inc Skim rise prevention punching method and skim rise prevention punching die device
JP2000158059A (en) * 1998-11-24 2000-06-13 Mitsui High Tec Inc Scrap floating prevention die device
JP2000158056A (en) * 1998-11-27 2000-06-13 Mitsui High Tec Inc Method and device for scrap floating preventive punching
JP2000210727A (en) * 1999-01-21 2000-08-02 Hitachi Cable Ltd Punching device
JP2000317551A (en) * 1999-05-07 2000-11-21 Hidaka Seiki Kk Die
JP2002028740A (en) * 2000-07-13 2002-01-29 Hidaka Seiki Kk Method and die for manufacturing fin for heat exchanger

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05228545A (en) * 1991-03-06 1993-09-07 Hitachi Cable Ltd Punching method
JPH0523755A (en) * 1991-07-22 1993-02-02 Kobe Steel Ltd Punching method for metallic plate and die
JP2000135522A (en) * 1998-10-29 2000-05-16 Mitsui High Tec Inc Skim rise prevention punching method and skim rise prevention punching die device
JP2000158059A (en) * 1998-11-24 2000-06-13 Mitsui High Tec Inc Scrap floating prevention die device
JP2000158056A (en) * 1998-11-27 2000-06-13 Mitsui High Tec Inc Method and device for scrap floating preventive punching
JP2000210727A (en) * 1999-01-21 2000-08-02 Hitachi Cable Ltd Punching device
JP2000317551A (en) * 1999-05-07 2000-11-21 Hidaka Seiki Kk Die
JP2002028740A (en) * 2000-07-13 2002-01-29 Hidaka Seiki Kk Method and die for manufacturing fin for heat exchanger

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130152656A1 (en) * 2011-12-19 2013-06-20 Ricoh Company, Ltd. Thin plate burring processing method and thin plate female screw-forming method
CN108115056A (en) * 2017-12-26 2018-06-05 东风汽车有限公司 Material returning plate of precision stamping die

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