FR3028780B1 - Dispositif d'indentation de type aveugle pour ameliorer la tenue en fatigue d'un alesage - Google Patents

Dispositif d'indentation de type aveugle pour ameliorer la tenue en fatigue d'un alesage

Info

Publication number
FR3028780B1
FR3028780B1 FR1461468A FR1461468A FR3028780B1 FR 3028780 B1 FR3028780 B1 FR 3028780B1 FR 1461468 A FR1461468 A FR 1461468A FR 1461468 A FR1461468 A FR 1461468A FR 3028780 B1 FR3028780 B1 FR 3028780B1
Authority
FR
France
Prior art keywords
indentation device
boring
fatigue
improving
blind type
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 - Fee Related
Application number
FR1461468A
Other languages
English (en)
Other versions
FR3028780A1 (fr
Inventor
Jean-Baptiste Tuery
Clement Chirol
Victor Achard
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.)
Airbus Operations SAS
Original Assignee
Airbus Operations SAS
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 Airbus Operations SAS filed Critical Airbus Operations SAS
Priority to FR1461468A priority Critical patent/FR3028780B1/fr
Publication of FR3028780A1 publication Critical patent/FR3028780A1/fr
Application granted granted Critical
Publication of FR3028780B1 publication Critical patent/FR3028780B1/fr
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/02—Stamping using rigid devices or tools
    • B21D22/04—Stamping using rigid devices or tools for dimpling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/24—Perforating, i.e. punching holes
    • 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
    • B23P9/02—Treating or finishing by applying pressure, e.g. knurling
    • B23P9/025—Treating or finishing by applying pressure, e.g. knurling to inner walls of holes by using axially moving tools
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Abstract

L'invention a pour objet un dispositif d'indentation pour générer un champ compressif dans au moins une pièce (10) qui comprend un pré-trou (18) coaxial à un alésage à réaliser, ledit dispositif d'indentation comprenant deux poinçons (24, 26) configurés pour être disposés de part et d'autre de la pièce (10), à chacune des extrémités du pré-trou (18). Selon l'invention, l'un des poinçons (24) comprend un alésage (32) traversant et le dispositif d'indentation comprend une tige de traction (34) dont une première extrémité (36) coopère avec l'autre poinçon (26) et dont une seconde extrémité (38) coopère avec un actionneur (30) configuré pour rapprocher les deux poinçons (24, 26), ladite tige de traction (34) étant configurée pour traverser le pré-trou (18) en fonctionnement et coulisser dans l'alésage (32) du premier poinçon (24).
FR1461468A 2014-11-26 2014-11-26 Dispositif d'indentation de type aveugle pour ameliorer la tenue en fatigue d'un alesage Expired - Fee Related FR3028780B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1461468A FR3028780B1 (fr) 2014-11-26 2014-11-26 Dispositif d'indentation de type aveugle pour ameliorer la tenue en fatigue d'un alesage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1461468A FR3028780B1 (fr) 2014-11-26 2014-11-26 Dispositif d'indentation de type aveugle pour ameliorer la tenue en fatigue d'un alesage

Publications (2)

Publication Number Publication Date
FR3028780A1 FR3028780A1 (fr) 2016-05-27
FR3028780B1 true FR3028780B1 (fr) 2017-03-24

Family

ID=52392100

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1461468A Expired - Fee Related FR3028780B1 (fr) 2014-11-26 2014-11-26 Dispositif d'indentation de type aveugle pour ameliorer la tenue en fatigue d'un alesage

Country Status (1)

Country Link
FR (1) FR3028780B1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111975284B (zh) * 2020-08-20 2021-06-08 东风商用车有限公司 一种用于提高金属板材孔端疲劳强度的挤压模具及方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07500773A (ja) * 1991-11-12 1995-01-26 ザ コモンウェルス オブ オーストラリア 孔の疲れ寿命の改良
JP2003048022A (ja) * 2001-08-02 2003-02-18 Honda Motor Co Ltd ディンプリング成形装置
US6698268B2 (en) * 2002-03-18 2004-03-02 The Boeing Company Passive-adaptive indentor for stress wave cold working

Also Published As

Publication number Publication date
FR3028780A1 (fr) 2016-05-27

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