FR2394338A1 - Mandrin perceur pour l'obtention de tubes a partir de blocs par filage a la presse - Google Patents

Mandrin perceur pour l'obtention de tubes a partir de blocs par filage a la presse

Info

Publication number
FR2394338A1
FR2394338A1 FR7817807A FR7817807A FR2394338A1 FR 2394338 A1 FR2394338 A1 FR 2394338A1 FR 7817807 A FR7817807 A FR 7817807A FR 7817807 A FR7817807 A FR 7817807A FR 2394338 A1 FR2394338 A1 FR 2394338A1
Authority
FR
France
Prior art keywords
punch
leading end
curved shape
life expectancy
given
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
FR7817807A
Other languages
English (en)
Other versions
FR2394338B1 (fr
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.)
Paderwerk Gebr Benteler
Original Assignee
Paderwerk Gebr Benteler
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 Paderwerk Gebr Benteler filed Critical Paderwerk Gebr Benteler
Publication of FR2394338A1 publication Critical patent/FR2394338A1/fr
Application granted granted Critical
Publication of FR2394338B1 publication Critical patent/FR2394338B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C25/00—Profiling tools for metal extruding
    • B21C25/04—Mandrels

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Of Metal (AREA)
  • Forging (AREA)

Abstract

Mandrin perceur pour presse à filer des tubes d'acier. La surface frontale du mandrin est constituée de deux portions de courbe définies mathématiquement, la portion A-B, partant de l'axe du mandrin x, par la formule :
FR7817807A 1977-06-14 1978-06-14 Mandrin perceur pour l'obtention de tubes a partir de blocs par filage a la presse Granted FR2394338A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2726675A DE2726675C3 (de) 1977-06-14 1977-06-14 Kombinierter Loch- und Innendorn für das Strangpressen von Stahlrohren aus Blöcken

Publications (2)

Publication Number Publication Date
FR2394338A1 true FR2394338A1 (fr) 1979-01-12
FR2394338B1 FR2394338B1 (fr) 1980-07-18

Family

ID=6011449

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7817807A Granted FR2394338A1 (fr) 1977-06-14 1978-06-14 Mandrin perceur pour l'obtention de tubes a partir de blocs par filage a la presse

Country Status (3)

Country Link
DE (1) DE2726675C3 (fr)
FR (1) FR2394338A1 (fr)
IT (1) IT1105482B (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2003226957A1 (en) * 2003-04-25 2004-11-23 Joachim Danckert A punch for extrusion processes and a product produced by use of such punch

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1043869A (fr) * 1951-10-15 1953-11-12 Comptoir Ind D Etirage & Profi Perfectionnement au perçage à chaud des métaux
FR1066157A (fr) * 1951-06-15 1954-06-02 Perfectionnements apportés aux procédés et dispositifs pour l'extrusion de matières plastiques
FR1491539A (fr) * 1966-07-01 1967-08-11 Cefilac Dispositif pour le filage des tubes de faible diamètre intérieur
FR1592621A (fr) * 1967-11-07 1970-05-19
GB1227290A (fr) * 1968-10-07 1971-04-07

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1066157A (fr) * 1951-06-15 1954-06-02 Perfectionnements apportés aux procédés et dispositifs pour l'extrusion de matières plastiques
FR1043869A (fr) * 1951-10-15 1953-11-12 Comptoir Ind D Etirage & Profi Perfectionnement au perçage à chaud des métaux
FR1491539A (fr) * 1966-07-01 1967-08-11 Cefilac Dispositif pour le filage des tubes de faible diamètre intérieur
FR1592621A (fr) * 1967-11-07 1970-05-19
GB1227290A (fr) * 1968-10-07 1971-04-07

Also Published As

Publication number Publication date
FR2394338B1 (fr) 1980-07-18
DE2726675B2 (de) 1980-12-04
IT1105482B (it) 1985-11-04
DE2726675C3 (de) 1981-07-23
DE2726675A1 (de) 1979-01-04
IT7849804A0 (it) 1978-06-09

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Legal Events

Date Code Title Description
ST Notification of lapse