FR870997A - Method and tool for manufacturing seamless hollow bodies with longitudinal ribs - Google Patents

Method and tool for manufacturing seamless hollow bodies with longitudinal ribs

Info

Publication number
FR870997A
FR870997A FR870997DA FR870997A FR 870997 A FR870997 A FR 870997A FR 870997D A FR870997D A FR 870997DA FR 870997 A FR870997 A FR 870997A
Authority
FR
France
Prior art keywords
tool
longitudinal ribs
hollow bodies
manufacturing seamless
seamless hollow
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.)
Expired
Application number
Other languages
French (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.)
Deutsche Waffen und Munitionsfabriken AG
Original Assignee
Deutsche Waffen und Munitionsfabriken AG
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 Deutsche Waffen und Munitionsfabriken AG filed Critical Deutsche Waffen und Munitionsfabriken AG
Application granted granted Critical
Publication of FR870997A publication Critical patent/FR870997A/en
Expired 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
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/02—Making uncoated products
    • B21C23/04—Making uncoated products by direct extrusion
    • B21C23/08—Making wire, bars, tubes
    • B21C23/10—Making finned tubes
    • 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
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/02—Making uncoated products
    • B21C23/03—Making uncoated products by both direct and backward extrusion
    • 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
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/02—Making uncoated products
    • B21C23/20—Making uncoated products by backward extrusion

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR870997D 1939-05-22 1941-03-20 Method and tool for manufacturing seamless hollow bodies with longitudinal ribs Expired FR870997A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE220539X 1939-05-22
DE870997X 1940-03-09

Publications (1)

Publication Number Publication Date
FR870997A true FR870997A (en) 1942-04-01

Family

ID=25762666

Family Applications (1)

Application Number Title Priority Date Filing Date
FR870997D Expired FR870997A (en) 1939-05-22 1941-03-20 Method and tool for manufacturing seamless hollow bodies with longitudinal ribs

Country Status (2)

Country Link
CH (1) CH220539A (en)
FR (1) FR870997A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2756876A (en) * 1948-08-06 1956-07-31 Metalflo Corp Hollow metal articles and method and apparatus for making the same
EP0990769A1 (en) * 1998-09-28 2000-04-05 MANNESMANN Aktiengesellschaft Method of making a cylinder having a longitudinal rib

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE954683C (en) * 1944-01-18 1956-12-20 Kabel Und Metallwerke Neumeyer Process for the production of pipe barrels for hand and machine weapons

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2756876A (en) * 1948-08-06 1956-07-31 Metalflo Corp Hollow metal articles and method and apparatus for making the same
EP0990769A1 (en) * 1998-09-28 2000-04-05 MANNESMANN Aktiengesellschaft Method of making a cylinder having a longitudinal rib

Also Published As

Publication number Publication date
CH220539A (en) 1942-04-15

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