JPS57154332A - Formation for projection for fixing of lamination of metallic thin plate - Google Patents

Formation for projection for fixing of lamination of metallic thin plate

Info

Publication number
JPS57154332A
JPS57154332A JP3992781A JP3992781A JPS57154332A JP S57154332 A JPS57154332 A JP S57154332A JP 3992781 A JP3992781 A JP 3992781A JP 3992781 A JP3992781 A JP 3992781A JP S57154332 A JPS57154332 A JP S57154332A
Authority
JP
Japan
Prior art keywords
parts
projection
blade part
metallic thin
lamination
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
JP3992781A
Other languages
Japanese (ja)
Inventor
Shiro Yaguchi
Shuichi Yoshida
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.)
Kuroda Precision Industries Ltd
Original Assignee
Kuroda Precision Industries 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 Kuroda Precision Industries Ltd filed Critical Kuroda Precision Industries Ltd
Priority to JP3992781A priority Critical patent/JPS57154332A/en
Publication of JPS57154332A publication Critical patent/JPS57154332A/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
    • B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
    • B21D28/10—Incompletely punching in such a manner that the parts are still coherent with the work
    • 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
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/03—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of sheet metal otherwise than by folding
    • B21D39/035—Joining superposed plates by slitting

Landscapes

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

Abstract

PURPOSE:To prevent edges from being chipped and laminate and fix plural metallic thin plates by chamfering the cutting blade part of an embossing punch. CONSTITUTION:Rounded parts 1c and 1d having a radius larger than the sag, which is generated by the ordinary shearing work, are formed in cut parts 1a and 1b of an embossed projection 1, and the projection 1 has the same form as the conventional form except these parts 1c and 1d. This embossed projection 1 is formed by a punch 2. That is, the cut blade part of the ordinary embossing punch 2 is chamfered with rounded parts 2a, 2b-2e, and 2f. Otherwise, the cut blade part is chamfered with only parts 2a and 2b to obtain the same effect, or the cut blade part is provided with corner rounded parts 4a and 4b to obtain the same effect.
JP3992781A 1981-03-19 1981-03-19 Formation for projection for fixing of lamination of metallic thin plate Pending JPS57154332A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3992781A JPS57154332A (en) 1981-03-19 1981-03-19 Formation for projection for fixing of lamination of metallic thin plate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3992781A JPS57154332A (en) 1981-03-19 1981-03-19 Formation for projection for fixing of lamination of metallic thin plate

Publications (1)

Publication Number Publication Date
JPS57154332A true JPS57154332A (en) 1982-09-24

Family

ID=12566562

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3992781A Pending JPS57154332A (en) 1981-03-19 1981-03-19 Formation for projection for fixing of lamination of metallic thin plate

Country Status (1)

Country Link
JP (1) JPS57154332A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01197025A (en) * 1988-02-02 1989-08-08 Amada Co Ltd Metal die for punching
EP1629905A1 (en) * 2004-08-25 2006-03-01 Behr GmbH & Co. KG Method and device for joining two parts
EP2129944A1 (en) * 2007-03-31 2009-12-09 Federal-Mogul Sealing Systems GmbH Method for the production of flat seals, and flat seal

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01197025A (en) * 1988-02-02 1989-08-08 Amada Co Ltd Metal die for punching
EP1629905A1 (en) * 2004-08-25 2006-03-01 Behr GmbH & Co. KG Method and device for joining two parts
EP2129944A1 (en) * 2007-03-31 2009-12-09 Federal-Mogul Sealing Systems GmbH Method for the production of flat seals, and flat seal

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