EP2926921A3 - Method of manufacturing metal plate having hole, metal plate with hole, external gear with peripheral hole, external gear, metal plate for cam, method of manufacturing metal plate, and metal plate - Google Patents

Method of manufacturing metal plate having hole, metal plate with hole, external gear with peripheral hole, external gear, metal plate for cam, method of manufacturing metal plate, and metal plate Download PDF

Info

Publication number
EP2926921A3
EP2926921A3 EP15159191.4A EP15159191A EP2926921A3 EP 2926921 A3 EP2926921 A3 EP 2926921A3 EP 15159191 A EP15159191 A EP 15159191A EP 2926921 A3 EP2926921 A3 EP 2926921A3
Authority
EP
European Patent Office
Prior art keywords
metal plate
hole
external gear
manufacturing
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.)
Granted
Application number
EP15159191.4A
Other languages
German (de)
French (fr)
Other versions
EP2926921A2 (en
EP2926921B1 (en
Inventor
Moritoshi Kimura
Yutaka 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.)
Arai Forging Co Ltd
Toa Forging Co Ltd
Original Assignee
Toa Forging 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 Toa Forging Co Ltd filed Critical Toa Forging Co Ltd
Publication of EP2926921A2 publication Critical patent/EP2926921A2/en
Publication of EP2926921A3 publication Critical patent/EP2926921A3/en
Application granted granted Critical
Publication of EP2926921B1 publication Critical patent/EP2926921B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
    • 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
    • B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
    • B21D28/16—Shoulder or burr prevention, e.g. fine-blanking

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Punching Or Piercing (AREA)

Abstract

A method of manufacturing a metal plate having a hole in which an inner surface of the punched hole is a smooth surface, a metal plate with hole manufactured by the method, an external gear with peripheral hole, an external gear, and a metal plate for cam are provided.
The method of manufacturing a metal plate having a hole includes a punching step of performing punching to a metal plate material placed on a die (5) by a punch (1) to form a through hole (8). In the punching step, breaking occurs during the punching for the through hole, a temporarily residual portion which is a peripheral edge of the through hole on the die side and protrudes inward from a position corresponding to an inner surface of the through hole (8) is formed, and thereafter, with the punching, the temporarily residual portion is pressed toward a side surface of the punch by a pressing surface (3) included in a distal end edge of the punch to have a smooth surface (71). The recessed portion forming step can be further included.
EP15159191.4A 2014-03-17 2015-03-16 Method of manufacturing a metal plate having a hole, external gear with a peripheral hole and method of manufacturing a metal plate Active EP2926921B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2014054022 2014-03-17
JP2015033379A JP6567292B2 (en) 2014-03-17 2015-02-23 Method for manufacturing metal plate having holes, method for manufacturing external gear with peripheral hole, and method for manufacturing metal plate

Publications (3)

Publication Number Publication Date
EP2926921A2 EP2926921A2 (en) 2015-10-07
EP2926921A3 true EP2926921A3 (en) 2015-12-30
EP2926921B1 EP2926921B1 (en) 2020-10-28

Family

ID=52824009

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15159191.4A Active EP2926921B1 (en) 2014-03-17 2015-03-16 Method of manufacturing a metal plate having a hole, external gear with a peripheral hole and method of manufacturing a metal plate

Country Status (3)

Country Link
EP (1) EP2926921B1 (en)
JP (1) JP6567292B2 (en)
TW (1) TWI641433B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105935881A (en) * 2015-12-19 2016-09-14 綦江祥和机械有限公司 Punching and deburring device for gear blank
JP7331689B2 (en) * 2019-12-26 2023-08-23 株式会社アイシン Manufacturing method of support plate for planetary carrier
CN113263098A (en) * 2021-05-25 2021-08-17 成都宏明双新科技股份有限公司 Thick stainless steel punching and cutting process
CN114178381B (en) * 2021-12-07 2022-12-23 横店集团东磁股份有限公司 Die capable of punching from inside to outside and implementation method thereof
JP7129048B1 (en) * 2022-01-28 2022-09-01 株式会社小松精機工作所 Shear processing method for amorphous alloy foil

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19707753A1 (en) * 1996-02-26 1997-08-28 Mitsubishi Motors Corp Metal workpiece smoothed by pressure ram
JP2009178729A (en) * 2008-01-30 2009-08-13 Nippon Steel Corp Punching method by shoulder type punch and shoulder type punch
JP2009248162A (en) * 2008-04-09 2009-10-29 Nippon Steel Corp Punching method and punching device
JP2009255167A (en) * 2008-03-24 2009-11-05 Nippon Steel Corp Blanking method and device using chamfered die
EP2140954A1 (en) * 2008-07-03 2010-01-06 Feintool Intellectual Property AG Method and device for manufacturing finely cut sections from a strip of material
WO2010108486A2 (en) * 2009-03-25 2010-09-30 Gustav Meyer Stanztechnik Gmbh & Co. Kg Stamping method and workpiece produced therewith
EP2357048A1 (en) * 2010-02-10 2011-08-17 Feintool Intellectual Property AG Method and device for influencing the cutting and functional areas on fine-cut finished parts

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Publication number Priority date Publication date Assignee Title
GB923811A (en) * 1958-05-07 1963-04-18 Production Engineering Res Ass Improvements in and relating to the punching of sheet or strip materials
JPS57190731A (en) * 1981-05-20 1982-11-24 Aida Eng Ltd Die for precision blanking
JPS602134B2 (en) * 1982-01-14 1985-01-19 本田技研工業株式会社 Punching hole processing method and device
JPS59174223A (en) * 1983-03-22 1984-10-02 Teijin Seiki Co Ltd Method and device for changing forming disk of forming machine
JPS61238424A (en) * 1985-04-17 1986-10-23 Hitachi Ltd Double drawing device for metallic plate
JPS62214834A (en) * 1986-03-18 1987-09-21 Hitachi Ltd Punching method for clad plate
JPS62292398A (en) * 1986-06-11 1987-12-19 日立化成工業株式会社 Punching mold
JP2507793B2 (en) * 1989-01-06 1996-06-19 古河電気工業株式会社 Precision metal disk manufacturing method
JPH0347617U (en) * 1989-09-18 1991-05-02
JPH0376621U (en) * 1989-11-21 1991-07-31
JPH07214193A (en) * 1994-02-02 1995-08-15 Iijima Seimitsu Kogyo Kk Precise sharing die in press machine
JPH08332529A (en) * 1995-06-09 1996-12-17 Mitsubishi Motors Corp Die for working pierce hole and method thereof
JP2000324773A (en) * 1999-05-12 2000-11-24 Asmo Co Ltd Manufacture of motor housing
JP3909352B2 (en) * 2000-11-14 2007-04-25 本田技研工業株式会社 Cam piece manufacturing method
JP2002206563A (en) 2001-01-09 2002-07-26 Nakanishi Metal Works Co Ltd Retainer for constant velocity universal joint and its manufacturing method
JP4711396B2 (en) * 2005-02-18 2011-06-29 新日本製鐵株式会社 Punching method for high strength steel sheet
JP2006263755A (en) * 2005-03-22 2006-10-05 Tdk Corp Method and apparatus for manufacturing press-formed metallic component
JP2007130655A (en) * 2005-11-09 2007-05-31 Sanyo Special Steel Co Ltd Punch having deformation-preventive function for ring with flange
JP2008229710A (en) * 2007-03-23 2008-10-02 Sango Co Ltd Press blanking method
DK2042249T3 (en) * 2007-09-26 2010-06-21 Feintool Ip Ag Method and device for making punching blanks with almost smooth and enlarged functional surface
NL1040584C2 (en) * 2014-01-02 2015-07-06 Bosch Gmbh Robert Fine-blanking device.

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19707753A1 (en) * 1996-02-26 1997-08-28 Mitsubishi Motors Corp Metal workpiece smoothed by pressure ram
JP2009178729A (en) * 2008-01-30 2009-08-13 Nippon Steel Corp Punching method by shoulder type punch and shoulder type punch
JP2009255167A (en) * 2008-03-24 2009-11-05 Nippon Steel Corp Blanking method and device using chamfered die
JP2009248162A (en) * 2008-04-09 2009-10-29 Nippon Steel Corp Punching method and punching device
EP2140954A1 (en) * 2008-07-03 2010-01-06 Feintool Intellectual Property AG Method and device for manufacturing finely cut sections from a strip of material
WO2010108486A2 (en) * 2009-03-25 2010-09-30 Gustav Meyer Stanztechnik Gmbh & Co. Kg Stamping method and workpiece produced therewith
EP2357048A1 (en) * 2010-02-10 2011-08-17 Feintool Intellectual Property AG Method and device for influencing the cutting and functional areas on fine-cut finished parts

Also Published As

Publication number Publication date
EP2926921A2 (en) 2015-10-07
TW201607637A (en) 2016-03-01
TWI641433B (en) 2018-11-21
JP2015193043A (en) 2015-11-05
EP2926921B1 (en) 2020-10-28
JP6567292B2 (en) 2019-08-28

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