FR2009051A1 - - Google Patents

Info

Publication number
FR2009051A1
FR2009051A1 FR6916599A FR6916599A FR2009051A1 FR 2009051 A1 FR2009051 A1 FR 2009051A1 FR 6916599 A FR6916599 A FR 6916599A FR 6916599 A FR6916599 A FR 6916599A FR 2009051 A1 FR2009051 A1 FR 2009051A1
Authority
FR
France
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.)
Withdrawn
Application number
FR6916599A
Other languages
French (fr)
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.)
GKN Floform Ltd
Original Assignee
GKN Floform 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 GKN Floform Ltd filed Critical GKN Floform Ltd
Publication of FR2009051A1 publication Critical patent/FR2009051A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/40—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only inside the tubular element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
    • B21J5/12—Forming profiles on internal or external surfaces
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/06—Manufacture of commutators
    • H01R43/08—Manufacture of commutators in which segments are not separated until after assembly
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2255/00—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes
    • F28F2255/16—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes extruded

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Forging (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Motor Or Generator Current Collectors (AREA)
FR6916599A 1968-05-21 1969-05-21 Withdrawn FR2009051A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB24123/68A GB1274194A (en) 1968-05-21 1968-05-21 Method of cold forming tubular members with axial passages or channels

Publications (1)

Publication Number Publication Date
FR2009051A1 true FR2009051A1 (en) 1970-01-30

Family

ID=10206765

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6916599A Withdrawn FR2009051A1 (en) 1968-05-21 1969-05-21

Country Status (4)

Country Link
JP (1) JPS5017353B1 (en)
DE (1) DE1926087B2 (en)
FR (1) FR2009051A1 (en)
GB (1) GB1274194A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2544926A1 (en) * 1983-04-20 1984-10-26 Jarret Jacques MAGNETIC RING FOR RECTILINEAR FREE PISTON GENERATORS

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6702039B2 (en) 2001-03-30 2004-03-09 Schlumberger Technology Corporation Perforating gun carriers and their methods of manufacture
CN108339892A (en) * 2018-05-05 2018-07-31 芜湖君如保温材料有限公司 A kind of water tank template molding die of stainless steel square shape assembled water tank
CN112517816B (en) * 2020-10-16 2022-04-08 中北大学 Bidirectional intermittent differential upsetting composite extrusion forming method for outer longitudinal rib cylindrical part
CN112517658B (en) * 2020-10-16 2022-04-08 中北大学 Bidirectional differential extrusion forming die for external longitudinal rib cylindrical part
CN112517657B (en) * 2020-10-16 2022-04-08 中北大学 Bidirectional differential extrusion forming method for outer longitudinal rib cylindrical part
CN113909327B (en) * 2021-09-22 2024-05-03 中北大学 Pre-deformation die, pre-deformation method and preparation method of cylindrical part with external longitudinal ribs

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2544926A1 (en) * 1983-04-20 1984-10-26 Jarret Jacques MAGNETIC RING FOR RECTILINEAR FREE PISTON GENERATORS
EP0123617A2 (en) * 1983-04-20 1984-10-31 Jacques Henri Jarret Magnetic ring for rectilinear generators with free pistons
EP0123617A3 (en) * 1983-04-20 1986-01-15 Jacques Henri Jarret Magnetic ring for rectilinear generators with free pistons

Also Published As

Publication number Publication date
JPS5017353B1 (en) 1975-06-20
DE1926087B2 (en) 1977-10-27
GB1274194A (en) 1972-05-17
DE1926087A1 (en) 1969-11-27

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Legal Events

Date Code Title Description
ST Notification of lapse