FR601295A - Method for increasing the resistance of hollow metal objects - Google Patents

Method for increasing the resistance of hollow metal objects

Info

Publication number
FR601295A
FR601295A FR601295DA FR601295A FR 601295 A FR601295 A FR 601295A FR 601295D A FR601295D A FR 601295DA FR 601295 A FR601295 A FR 601295A
Authority
FR
France
Prior art keywords
increasing
resistance
hollow metal
metal objects
objects
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
Other languages
French (fr)
Inventor
Frederick Charles Langenberg
Tracy Campbell Dickson
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 filed Critical
Application granted granted Critical
Publication of FR601295A publication Critical patent/FR601295A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P9/00—Treating or finishing surfaces mechanically, with or without calibrating, primarily to resist wear or impact, e.g. smoothing or roughening turbine blades or bearings; Features of such surfaces not otherwise provided for, their treatment being unspecified
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D7/00—Modifying the physical properties of iron or steel by deformation
    • C21D7/02—Modifying the physical properties of iron or steel by deformation by cold working
    • C21D7/10—Modifying the physical properties of iron or steel by deformation by cold working of the whole cross-section, e.g. of concrete reinforcing bars
    • C21D7/12—Modifying the physical properties of iron or steel by deformation by cold working of the whole cross-section, e.g. of concrete reinforcing bars by expanding tubular bodies

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
FR601295D 1925-07-24 1925-07-24 Method for increasing the resistance of hollow metal objects Expired FR601295A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR601295T 1925-07-24

Publications (1)

Publication Number Publication Date
FR601295A true FR601295A (en) 1926-02-26

Family

ID=8971140

Family Applications (1)

Application Number Title Priority Date Filing Date
FR601295D Expired FR601295A (en) 1925-07-24 1925-07-24 Method for increasing the resistance of hollow metal objects

Country Status (1)

Country Link
FR (1) FR601295A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0439764A2 (en) * 1990-02-02 1991-08-07 EUROPA METALLI - LMI S.p.A. Process for manufacturing hollow one-piece metal elements

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0439764A2 (en) * 1990-02-02 1991-08-07 EUROPA METALLI - LMI S.p.A. Process for manufacturing hollow one-piece metal elements
EP0439764A3 (en) * 1990-02-02 1991-10-30 Europa Metalli - Lmi S.P.A. Process for manufacturing hollow one-piece metal elements
US5097689A (en) * 1990-02-02 1992-03-24 Europa Metalli-Lmi S.P.A. Process for manufacturing hollow one-piece metal elements

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