GB318787A - Method of making tubular forgings - Google Patents

Method of making tubular forgings

Info

Publication number
GB318787A
GB318787A GB3187328A GB3187328A GB318787A GB 318787 A GB318787 A GB 318787A GB 3187328 A GB3187328 A GB 3187328A GB 3187328 A GB3187328 A GB 3187328A GB 318787 A GB318787 A GB 318787A
Authority
GB
United Kingdom
Prior art keywords
dies
forgings
work
stage
punch
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
GB3187328A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB3187328A priority Critical patent/GB318787A/en
Publication of GB318787A publication Critical patent/GB318787A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)

Abstract

318,787. Friedman, J. H. Nov. 1, 1928. Forging-dies.- Tubular forgings are produced in recessed dies, the unsupported portion of the stock not exceeding four diameters in length. For long articles a succession of dies is employed and advantageously a collar is upset at the first stage to serve for centring the blank during later stages. Fig. 1 shows the work after the first stage, the punch 7 swelling out the work into the enlargement 4 and also forming the collar C. Fig. 2 shows the work in dies for a second stage prior to the action of the punch. Dies for four stages are illustrated.
GB3187328A 1928-11-01 1928-11-01 Method of making tubular forgings Expired GB318787A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3187328A GB318787A (en) 1928-11-01 1928-11-01 Method of making tubular forgings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3187328A GB318787A (en) 1928-11-01 1928-11-01 Method of making tubular forgings

Publications (1)

Publication Number Publication Date
GB318787A true GB318787A (en) 1929-09-12

Family

ID=10329674

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3187328A Expired GB318787A (en) 1928-11-01 1928-11-01 Method of making tubular forgings

Country Status (1)

Country Link
GB (1) GB318787A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5493887A (en) * 1994-05-10 1996-02-27 Nibco Inc. Cold header pierced valve stem

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5493887A (en) * 1994-05-10 1996-02-27 Nibco Inc. Cold header pierced valve stem

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