CH220539A - Method and tool for the production of seamless hollow bodies with longitudinal ribs. - Google Patents

Method and tool for the production of seamless hollow bodies with longitudinal ribs.

Info

Publication number
CH220539A
CH220539A CH220539DA CH220539A CH 220539 A CH220539 A CH 220539A CH 220539D A CH220539D A CH 220539DA CH 220539 A CH220539 A CH 220539A
Authority
CH
Switzerland
Prior art keywords
tool
production
longitudinal ribs
hollow bodies
seamless hollow
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesel Munitionsfabrieken
Original Assignee
Waffen Und Munitionsfabrieken
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 Waffen Und Munitionsfabrieken filed Critical Waffen Und Munitionsfabrieken
Publication of CH220539A publication Critical patent/CH220539A/en

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)
CH220539D 1939-05-22 1941-03-10 Method and tool for the production of seamless hollow bodies with longitudinal ribs. CH220539A (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
CH220539A true CH220539A (en) 1942-04-15

Family

ID=25762666

Family Applications (1)

Application Number Title Priority Date Filing Date
CH220539D CH220539A (en) 1939-05-22 1941-03-10 Method and tool for the production of seamless hollow bodies with longitudinal ribs.

Country Status (2)

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

Cited By (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

Families Citing this family (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
DE19845835C1 (en) * 1998-09-28 2000-03-16 Mannesmann Ag Production of a hollow cylinder with a bottom and at least one external protrusion extending over its entire length involves machining, heating and descaling of the blank before it is reverse-extruded by punch and die

Cited By (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

Also Published As

Publication number Publication date
FR870997A (en) 1942-04-01

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