ES474994A1 - Expansion of tube inside diameter - using a mandrel, with a die drawn over the outside to maintain outside diameter - Google Patents

Expansion of tube inside diameter - using a mandrel, with a die drawn over the outside to maintain outside diameter

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
Spanish (es)
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/en
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 OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
    • B21C1/16—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes
    • B21C1/22—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes specially adapted for making tubular articles
    • B21C1/24—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, 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

Process for increasing the inside dia. on the end of a tube in which the tube is inserted through a die and then on to a mandrel which moves into the tube to expand it. By relative movement between die and mandrel the die is withdrawn over the mandrel and tube end, drawing the latter on to the mandrel. Used e.g. to mfr. steering column bearing by cheap process giving improved precision.
ES474994A 1977-11-11 1978-11-10 Expansion of tube inside diameter - using a mandrel, with a die drawn over the outside to maintain outside diameter Expired ES474994A1 (en)

Applications Claiming Priority (1)

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

Publications (1)

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

Family

ID=10443310

Family Applications (1)

Application Number Title Priority Date Filing Date
ES474994A Expired ES474994A1 (en) 1977-11-11 1978-11-10 Expansion of tube inside diameter - using a mandrel, with a die drawn over the outside to maintain outside diameter

Country Status (5)

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

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4306181A1 (en) * 1993-02-27 1994-09-01 Kabelmetal Ag Process for producing a plug chamber when cascading pipes and device for carrying out the process

Also Published As

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

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