GB777928A - Process and means for reducing the diameter of tubes and solids and reducing the diameter and wall thickness of tubes by swaging - Google Patents

Process and means for reducing the diameter of tubes and solids and reducing the diameter and wall thickness of tubes by swaging

Info

Publication number
GB777928A
GB777928A GB3067253A GB3067253A GB777928A GB 777928 A GB777928 A GB 777928A GB 3067253 A GB3067253 A GB 3067253A GB 3067253 A GB3067253 A GB 3067253A GB 777928 A GB777928 A GB 777928A
Authority
GB
United Kingdom
Prior art keywords
swaging
tubes
die
diameter
segments
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
GB3067253A
Inventor
Rudolf Francis Weiser
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.)
Stewarts and Lloyds Ltd
Original Assignee
Stewarts and Lloyds 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=10311330&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=GB777928(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Stewarts and Lloyds Ltd filed Critical Stewarts and Lloyds Ltd
Priority to GB3067253A priority Critical patent/GB777928A/en
Publication of GB777928A publication Critical patent/GB777928A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J7/00—Hammers; Forging machines with hammers or die jaws acting by impact
    • B21J7/02—Special design or construction
    • B21J7/14—Forging machines working with several hammers
    • B21J7/145—Forging machines working with several hammers the hammers being driven by a rotating annular driving member
    • 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
    • B21K21/16—Remodelling hollow bodies with respect to the shape of the cross-section

Landscapes

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

Abstract

777,928. Forging.. STEWARTS & LLOYDS, Ltd. Nov. 5, 1954 [Nov. 5, 1953], No. 30672/53. Class 83 (4). The outer diameter of tubes and bars or the diameter and wall thickness of tubes, are reduced by swaging in a stationary head-type swager, preferably of the kind described in Specification 777,927, whose die pass is divided longitudinally into two or more sub-passes, each consisting of a die divided radially into two or more segments 1T, 1B, 2T, 2B, the radial dividing planes in adjacent dies being staggered relative to each other, all segments contracting simultaneously to effect the swaging stroke and thereafter being retracted by forward movement of the stock which is fed intermittently being the swaging strokes. Each die may have four die segments 1T, 1L, 1B, 1R, Fig. 1, separated along radial planes such as el, e2. In another embodiment, each die comprises two segments. The workpiece is fed through the machine manually or by screw, chain, pinch rolls or mechanism of the kind described in Specification 777,927. For the swaging of tubes a mandrel may be used, Fig. 5 (not shown). The swaging may be performed hot or cold.
GB3067253A 1953-11-05 1953-11-05 Process and means for reducing the diameter of tubes and solids and reducing the diameter and wall thickness of tubes by swaging Expired GB777928A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3067253A GB777928A (en) 1953-11-05 1953-11-05 Process and means for reducing the diameter of tubes and solids and reducing the diameter and wall thickness of tubes by swaging

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3067253A GB777928A (en) 1953-11-05 1953-11-05 Process and means for reducing the diameter of tubes and solids and reducing the diameter and wall thickness of tubes by swaging

Publications (1)

Publication Number Publication Date
GB777928A true GB777928A (en) 1957-07-03

Family

ID=10311330

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3067253A Expired GB777928A (en) 1953-11-05 1953-11-05 Process and means for reducing the diameter of tubes and solids and reducing the diameter and wall thickness of tubes by swaging

Country Status (1)

Country Link
GB (1) GB777928A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2745954A2 (en) * 2012-12-13 2014-06-25 GFM GmbH Method for forging
US11850655B2 (en) * 2018-01-10 2023-12-26 Federal-Mogul Valvetrain Gmbh Process and device for manufacturing hollow, internally cooled valves

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2745954A2 (en) * 2012-12-13 2014-06-25 GFM GmbH Method for forging
EP2745954A3 (en) * 2012-12-13 2014-11-26 GFM GmbH Method for forging
EP2745954B1 (en) 2012-12-13 2016-03-16 GFM GmbH Method for forging
US11850655B2 (en) * 2018-01-10 2023-12-26 Federal-Mogul Valvetrain Gmbh Process and device for manufacturing hollow, internally cooled valves

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