ATE525151T1 - METHOD FOR PRODUCING HOLLOW FORGINGS - Google Patents

METHOD FOR PRODUCING HOLLOW FORGINGS

Info

Publication number
ATE525151T1
ATE525151T1 AT08840711T AT08840711T ATE525151T1 AT E525151 T1 ATE525151 T1 AT E525151T1 AT 08840711 T AT08840711 T AT 08840711T AT 08840711 T AT08840711 T AT 08840711T AT E525151 T1 ATE525151 T1 AT E525151T1
Authority
AT
Austria
Prior art keywords
core
preform
order
producing hollow
forging
Prior art date
Application number
AT08840711T
Other languages
German (de)
Inventor
Herve Muller
Francois Deguy
Mikael Pugnet
Original Assignee
C2Ft
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 C2Ft filed Critical C2Ft
Application granted granted Critical
Publication of ATE525151T1 publication Critical patent/ATE525151T1/en

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
    • 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
    • B21J5/002—Hybrid process, e.g. forging following casting
    • 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
    • B21J5/02—Die forging; Trimming by making use of special dies ; Punching during forging
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/10—Cores; Manufacture or installation of cores
    • B22C9/106—Vented or reinforced cores

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)

Abstract

The invention relates to a method for producing hollow forged parts, that comprises the following steps: making a core of a lost material having a shape corresponding to the internal shape of the part to be obtained except for deformation during forging, positioning the core in a foundry mould, casting a metal around the core so as to completely surround the core in order to obtain a preform (18), sealing the preform (18) so that the core is completely isolated relative to the outside, forging the preform (18) in order to obtain the part having the desired shape, and decore the core of the part in order to obtain the hollow forged part.
AT08840711T 2007-09-28 2008-09-26 METHOD FOR PRODUCING HOLLOW FORGINGS ATE525151T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0757922A FR2921574B1 (en) 2007-09-28 2007-09-28 METHOD FOR MANUFACTURING HOLLOW FORGED PARTS AND PARTS THUS OBTAINED
PCT/FR2008/051720 WO2009050382A2 (en) 2007-09-28 2008-09-26 Method for producing hollow forged parts and parts thus obtained

Publications (1)

Publication Number Publication Date
ATE525151T1 true ATE525151T1 (en) 2011-10-15

Family

ID=39321470

Family Applications (1)

Application Number Title Priority Date Filing Date
AT08840711T ATE525151T1 (en) 2007-09-28 2008-09-26 METHOD FOR PRODUCING HOLLOW FORGINGS

Country Status (5)

Country Link
EP (1) EP2197606B1 (en)
CN (1) CN101808762B (en)
AT (1) ATE525151T1 (en)
FR (1) FR2921574B1 (en)
WO (1) WO2009050382A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2958193B1 (en) * 2010-04-06 2012-06-29 Saint Jean Ind PROCESS FOR MANUFACTURING LIGHT ALLOY FORGED PARTS INCORPORATING FULL OR DRAWN THICKNESS SECTIONS
FR2969516B1 (en) 2010-12-23 2013-08-16 Saint Jean Ind PROCESS FOR THE PRODUCTION OF SALT CORE BY ISOSTATIC COMPACTION UILIZABLE IN FOUNDRY OR FOUNDRY-FORGING
CN106925720A (en) * 2017-04-17 2017-07-07 大连旅桑实业有限公司 A sand mold for casting long arm type castings
CN111842749A (en) * 2020-07-13 2020-10-30 中国船舶工业集团公司第七0八研究所 A general manufacturing method of marine steel structure

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1938526A1 (en) * 1969-07-29 1971-02-18 Ideal Standard Sand core with ventilation channels
JPS5554259A (en) * 1978-10-18 1980-04-21 Hitachi Metals Ltd Mold casting method
JPS56114554A (en) * 1980-02-13 1981-09-09 Hitachi Metals Ltd Mold
JPS6076249A (en) * 1983-09-30 1985-04-30 Toyota Motor Corp Sand core
JPH05146841A (en) * 1991-11-27 1993-06-15 Toyota Motor Corp Forging method
JP3149374B2 (en) * 1996-12-27 2001-03-26 株式会社シマノ Bicycle hollow crank and manufacturing method thereof
JP3248676B2 (en) * 1996-12-27 2002-01-21 株式会社シマノ Bicycle crank and manufacturing method thereof
CN1057716C (en) * 1997-02-18 2000-10-25 曾绍谦 Mold core device for cold forging capable of taking out mandrel easily and using method thereof

Also Published As

Publication number Publication date
EP2197606A2 (en) 2010-06-23
CN101808762B (en) 2013-02-20
WO2009050382A2 (en) 2009-04-23
FR2921574B1 (en) 2010-04-16
FR2921574A1 (en) 2009-04-03
WO2009050382A3 (en) 2009-06-11
EP2197606B1 (en) 2011-09-21
CN101808762A (en) 2010-08-18

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Legal Events

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