ES474994A1 - Procedimiento para formar un agujero escaridado en el extre-mo de un tubo - Google Patents

Procedimiento para formar un agujero escaridado en el extre-mo de un tubo

Info

Publication number
ES474994A1
ES474994A1 ES474994A ES474994A ES474994A1 ES 474994 A1 ES474994 A1 ES 474994A1 ES 474994 A ES474994 A ES 474994A ES 474994 A ES474994 A ES 474994A ES 474994 A1 ES474994 A1 ES 474994A1
Authority
ES
Spain
Prior art keywords
mandrel
outside
diameter
expansion
tube inside
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
ES474994A
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.)
TI Accles and Pollock Ltd
Accles and Pollock Ltd
Original Assignee
TI Accles and Pollock Ltd
Accles and Pollock Ltd
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 TI Accles and Pollock Ltd, Accles and Pollock Ltd filed Critical TI Accles and Pollock Ltd
Publication of ES474994A1 publication Critical patent/ES474994A1/es
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K21/00—Making hollow articles not covered by a single preceding sub-group
    • B21K21/12—Shaping end portions of hollow articles
    • 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
    • B21C1/00—Manufacture of metal sheets, wire, rods, tubes or like semi-manufactured products by drawing
    • B21C1/16—Metal drawing by machines or apparatus in which the drawing action is effected by means other than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, rods or tubes
    • B21C1/22—Metal drawing by machines or apparatus in which the drawing action is effected by means other than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, rods or tubes specially adapted for making tubular articles
    • B21C1/24—Metal drawing by machines or apparatus in which the drawing action is effected by means other than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, rods or tubes specially adapted for making tubular articles by means of mandrels

Landscapes

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

Abstract

Procedimiento para formar un agujero escoriado en el extremo de un tubo, caracterizado porque se hace que dicho extremo de tubo se introduzca en una matriz (13, 19, 24) a partir de una extremidad axial de la misma, a continuación de lo cual se sitúa el extremo de tubo sobre la extremidad de un mandril (12, 18, 22) que sobresale de la otra extremidad axial de la matriz, teniendo el citado mandril el efecto de engrosar el extremo del tubo; después de lo cual se lleva a cabo un desplazamiento relativo entre la matriz y el mandril, con lo que la matriz se desplaza en dirección al mandril y por encima de este último, sobre la porción del extremo de tubo posicionada sobre el mandril, reduciendo, así, la sección transversal de la citada porción sobre el mandril y formando el agujero escariado deseado.
ES474994A 1977-11-11 1978-11-10 Procedimiento para formar un agujero escaridado en el extre-mo de un tubo Expired ES474994A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4698777 1977-11-11

Publications (1)

Publication Number Publication Date
ES474994A1 true ES474994A1 (es) 1979-04-01

Family

ID=10443310

Family Applications (1)

Application Number Title Priority Date Filing Date
ES474994A Expired ES474994A1 (es) 1977-11-11 1978-11-10 Procedimiento para formar un agujero escaridado en el extre-mo de un tubo

Country Status (5)

Country Link
DE (1) DE2848805A1 (es)
ES (1) ES474994A1 (es)
FR (1) FR2408405A1 (es)
IT (1) IT1100944B (es)
SE (1) SE7811605L (es)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4306181A1 (de) * 1993-02-27 1994-09-01 Kabelmetal Ag Verfahren zur Herstellung einer Stopfenkammer beim Kaskadenziehen von Rohren und Vorrichtung zur Durchführung des Verfahrens

Also Published As

Publication number Publication date
DE2848805A1 (de) 1979-05-17
IT1100944B (it) 1985-09-28
FR2408405A1 (fr) 1979-06-08
SE7811605L (sv) 1979-05-12
IT7829618A0 (it) 1978-11-09

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