FR2374977A1 - Procede et dispositif pour la realisation simultanee de deux elements longilignes tubulaires, par exemple ebauches de mat pour voilier, a partir d'un flan en materiau malleable - Google Patents

Procede et dispositif pour la realisation simultanee de deux elements longilignes tubulaires, par exemple ebauches de mat pour voilier, a partir d'un flan en materiau malleable

Info

Publication number
FR2374977A1
FR2374977A1 FR7638832A FR7638832A FR2374977A1 FR 2374977 A1 FR2374977 A1 FR 2374977A1 FR 7638832 A FR7638832 A FR 7638832A FR 7638832 A FR7638832 A FR 7638832A FR 2374977 A1 FR2374977 A1 FR 2374977A1
Authority
FR
France
Prior art keywords
dumb
tubes
pressed onto
simultaneously formed
bell section
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.)
Withdrawn
Application number
FR7638832A
Other languages
English (en)
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR7638832A priority Critical patent/FR2374977A1/fr
Publication of FR2374977A1 publication Critical patent/FR2374977A1/fr
Withdrawn legal-status Critical Current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
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/01—Bending sheet metal along straight lines, e.g. to form simple curves between rams and anvils or abutments
    • B21D5/015—Bending sheet metal along straight lines, e.g. to form simple curves between rams and anvils or abutments for making tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/10—Making tubes with seams being neither welded nor soldered, e.g. riveted seams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/151—Making tubes with multiple passages
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/155—Making tubes with non-circular section
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/16—Making tubes with varying diameter in longitudinal direction
    • B21C37/18—Making tubes with varying diameter in longitudinal direction conical tubes
    • 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
    • B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
    • B21D11/20—Bending sheet metal, not otherwise provided for

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)

Abstract

L'invention concerne la réalisation simultanée de deux éléments tubulaires à partir d'un même flan 16. Suivant l'invention, on enveloppe d'un tel flan un mandrin de formage 18 de configuration correspondant globalement à celle de deux éléments tubulaires à réaliser accoles longitudinalement par une entretoise 21, on contraint le flan 16 à épouser la configuration de ce mandrin tout en en maintenant jointives les deux lèvres du tube qu'il constitue, puis on extrait de la << forme >> ainsi obtenue les deux éléments tubulaires recherchés. Application notamment à la réalisation de mâts métalliques tubulaires pour gréement de voiliers.
FR7638832A 1976-12-23 1976-12-23 Procede et dispositif pour la realisation simultanee de deux elements longilignes tubulaires, par exemple ebauches de mat pour voilier, a partir d'un flan en materiau malleable Withdrawn FR2374977A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7638832A FR2374977A1 (fr) 1976-12-23 1976-12-23 Procede et dispositif pour la realisation simultanee de deux elements longilignes tubulaires, par exemple ebauches de mat pour voilier, a partir d'un flan en materiau malleable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7638832A FR2374977A1 (fr) 1976-12-23 1976-12-23 Procede et dispositif pour la realisation simultanee de deux elements longilignes tubulaires, par exemple ebauches de mat pour voilier, a partir d'un flan en materiau malleable

Publications (1)

Publication Number Publication Date
FR2374977A1 true FR2374977A1 (fr) 1978-07-21

Family

ID=9181447

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7638832A Withdrawn FR2374977A1 (fr) 1976-12-23 1976-12-23 Procede et dispositif pour la realisation simultanee de deux elements longilignes tubulaires, par exemple ebauches de mat pour voilier, a partir d'un flan en materiau malleable

Country Status (1)

Country Link
FR (1) FR2374977A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5163225A (en) * 1988-07-25 1992-11-17 Tube Technology Pty Ltd. Process for forming a structural member utilizing high frequency electrical induction or resistance welding
US5403986A (en) * 1990-09-28 1995-04-04 Tube Technology Pty. Ltd. Structural member and method of making by cold rolling followed by induction or resistance welding
US5501053A (en) * 1990-09-28 1996-03-26 Tube Technology Pty., Ltd. Interengageable structural members
CN116748898A (zh) * 2023-08-15 2023-09-15 南通鸿烨健身器材有限公司 一种哑铃片可调式冲压装置

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5163225A (en) * 1988-07-25 1992-11-17 Tube Technology Pty Ltd. Process for forming a structural member utilizing high frequency electrical induction or resistance welding
US5373679A (en) * 1988-07-25 1994-12-20 Tube Technology Pty Ltd Structural member and process for forming same
US5403986A (en) * 1990-09-28 1995-04-04 Tube Technology Pty. Ltd. Structural member and method of making by cold rolling followed by induction or resistance welding
US5501053A (en) * 1990-09-28 1996-03-26 Tube Technology Pty., Ltd. Interengageable structural members
CN116748898A (zh) * 2023-08-15 2023-09-15 南通鸿烨健身器材有限公司 一种哑铃片可调式冲压装置
CN116748898B (zh) * 2023-08-15 2023-11-24 南通鸿烨健身器材有限公司 一种哑铃片可调式冲压装置

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Legal Events

Date Code Title Description
ST Notification of lapse