BR9811360A - Process and tool for forming single hemispherical rivet, equipment for carrying out the process, single hemispheric rivet and rigid sheet metal end closure structure - Google Patents

Process and tool for forming single hemispherical rivet, equipment for carrying out the process, single hemispheric rivet and rigid sheet metal end closure structure

Info

Publication number
BR9811360A
BR9811360A BR9811360-7A BR9811360A BR9811360A BR 9811360 A BR9811360 A BR 9811360A BR 9811360 A BR9811360 A BR 9811360A BR 9811360 A BR9811360 A BR 9811360A
Authority
BR
Brazil
Prior art keywords
rivet
hemispheric
tool
equipment
carrying
Prior art date
Application number
BR9811360-7A
Other languages
Portuguese (pt)
Inventor
Der-Form Chang
Jywen Wang
Original Assignee
Weirton Steel Corp
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
Priority claimed from US09/103,390 external-priority patent/US6035689A/en
Application filed by Weirton Steel Corp filed Critical Weirton Steel Corp
Publication of BR9811360A publication Critical patent/BR9811360A/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
    • B21D51/00—Making hollow objects
    • B21D51/16—Making hollow objects characterised by the use of the objects
    • B21D51/38—Making inlet or outlet arrangements of cans, tins, baths, bottles, or other vessels; Making can ends; Making closures
    • B21D51/383—Making inlet or outlet arrangements of cans, tins, baths, bottles, or other vessels; Making can ends; Making closures scoring lines, tear strips or pulling tabs

Abstract

''PROCESSO E FERRAMENTA PARA CONFORMAçãO DE REBITE HEMISFéRICO UNITáRIO, EQUIPAMENTO PARA EXECUçãO DO PROCESSO, REBITE HEMISFéRICO UNITáRIO E ESTRUTURA DE FECHAMENTO DE EXTREMIDADE DE CHAPA METáLICA RìGIDA''. Processo para conformação de rebite hemisférico a partir de uma chapa de metal (70) compreende, em uma primeira operação a conformação de um filete anular unitário (104) projetando-se de uma superfície planar da chapa. Em uma segunda operação o filete anular e um painel central planar da chapa são conformados em um projeção de grande diâmetro (116) estabelecendo uma porção principal da altura do rebite, e finalmente a projeção de grande diâmetro é conformada em um rebite hemisférico unitário (156).'' PROCESS AND TOOL FOR THE FORMATION OF UNIT HEMISPHERIC RIVET, EQUIPMENT FOR EXECUTING THE PROCESS, UNIT HEMISPHERIC RIVET AND STRUCTURE FOR CLOSING THE END OF RIGID METAL PLATE ''. A process for forming a hemispherical rivet from a metal plate (70) comprises, in a first operation, the forming of a single annular fillet (104) protruding from a planar surface of the plate. In a second operation, the annular fillet and a central planar panel of the plate are formed into a large diameter projection (116) establishing a major portion of the height of the rivet, and finally the large diameter projection is shaped into a single hemispherical rivet (156 ).

BR9811360-7A 1998-06-24 1998-06-25 Process and tool for forming single hemispherical rivet, equipment for carrying out the process, single hemispheric rivet and rigid sheet metal end closure structure BR9811360A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/103,390 US6035689A (en) 1997-06-27 1998-06-24 Rigid sheet metal rivet button fabrication for convenience-feature can stock
PCT/US1998/013156 WO1999067040A1 (en) 1998-06-24 1998-06-25 Sheet metal rivet button fabrication

Publications (1)

Publication Number Publication Date
BR9811360A true BR9811360A (en) 2000-08-22

Family

ID=22294936

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9811360-7A BR9811360A (en) 1998-06-24 1998-06-25 Process and tool for forming single hemispherical rivet, equipment for carrying out the process, single hemispheric rivet and rigid sheet metal end closure structure

Country Status (5)

Country Link
AR (1) AR016631A1 (en)
AU (1) AU8263498A (en)
BR (1) BR9811360A (en)
CA (1) CA2301813C (en)
WO (1) WO1999067040A1 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4685322A (en) * 1985-09-03 1987-08-11 Aluminum Company Of America Method of forming a drawn and redrawn container body
FR2660220B1 (en) * 1990-04-03 1995-02-24 Lorraine Laminage PROCESS AND DEVICE FOR FORMING A RELIEF PART ON A SHEET OF SHEET AND PRODUCT OBTAINED ACCORDING TO THIS PROCESS.
FR2734182B1 (en) * 1995-05-19 1997-07-25 Metal Box Plc METHOD FOR MANUFACTURING A RIVET BODY IN A METAL PLATE

Also Published As

Publication number Publication date
WO1999067040A1 (en) 1999-12-29
CA2301813A1 (en) 1999-12-29
AU8263498A (en) 2000-01-10
CA2301813C (en) 2005-11-15
AR016631A1 (en) 2001-07-25

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Legal Events

Date Code Title Description
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]
B24C Patent annual fee: request for for restoration

Free format text: REFERENTE A 11A ANUIDADE(S).

B21F Lapse acc. art. 78, item iv - on non-payment of the annual fees in time

Free format text: REFERENTE AO DESPACHO 24.3 DA RPI 2119 DE 16/08/2011.