EP1375026B1 - Pièces coulées forgées sans traces d'éjecteurs - Google Patents

Pièces coulées forgées sans traces d'éjecteurs Download PDF

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Publication number
EP1375026B1
EP1375026B1 EP03356082A EP03356082A EP1375026B1 EP 1375026 B1 EP1375026 B1 EP 1375026B1 EP 03356082 A EP03356082 A EP 03356082A EP 03356082 A EP03356082 A EP 03356082A EP 1375026 B1 EP1375026 B1 EP 1375026B1
Authority
EP
European Patent Office
Prior art keywords
preform
zones
forging
burr
ejection
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 - Lifetime
Application number
EP03356082A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1375026A3 (fr
EP1375026A2 (fr
Inventor
Emile Thomas Di Serio
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.)
Saint Jean Industries SAS
Original Assignee
Saint Jean Industries 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=29558965&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1375026(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Saint Jean Industries SAS filed Critical Saint Jean Industries SAS
Publication of EP1375026A2 publication Critical patent/EP1375026A2/fr
Publication of EP1375026A3 publication Critical patent/EP1375026A3/fr
Application granted granted Critical
Publication of EP1375026B1 publication Critical patent/EP1375026B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J13/00—Details of machines for forging, pressing, or hammering
    • B21J13/08—Accessories for handling work or tools
    • B21J13/14—Ejecting devices
    • 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
    • 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

Definitions

  • the invention relates to the technical sector of the foundry and forging of aluminum or alloy parts relating thereto.
  • ejectors In known manner, to release a casting from its mold, ejectors are used. To remove a forged piece from its forge die, ejectors are also used.
  • the purpose of the invention was to obviate these disadvantages.
  • the method aims at displacing the receiving zones of the ejectors out of the body of the preform considered, by implanting them on the lateral peripheral edge of the preform, in unsolicited zones, and in that during the forging phase, these areas allowing the ejection are found in the burr of the forged part and are cut and thus evacuated, along with the burr.
  • FIG. 6 a preform (2) of a part obtained by casting aluminum or aluminum alloy castings.
  • This preform is of any shape and size in order to meet the conditions of use and application of the part resulting from said preform.
  • said preform (2) has along its lateral peripheral edge (2a), and externally of the part to be produced, one or more continuous or spaced projecting zones (2b) which are capable of constituting support planes thrust contact of a set of ejectors for the lifting of the preform out of its matrix.
  • the one or more projecting zones (2b) may constitute complementary appendices. This or these protruding zones are placed in non-stressed zones, so that there is no risk of stress concentration in these zones.
  • said areas (2b) for ejection of the preform are found in the burr of the forging and are cut at the same time as the burr. Moreover, since the receiving zones of the ejectors are located outside the preform and the final part, this makes it possible to improve the stability of the latter during the extraction of the impression and its transfer. .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
  • Materials For Medical Uses (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
EP03356082A 2002-05-31 2003-05-27 Pièces coulées forgées sans traces d'éjecteurs Expired - Lifetime EP1375026B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0206873 2002-05-31
FR0206873A FR2840242B1 (fr) 2002-05-31 2002-05-31 Pieces coulees forgees sans traces d'ejecteurs

Publications (3)

Publication Number Publication Date
EP1375026A2 EP1375026A2 (fr) 2004-01-02
EP1375026A3 EP1375026A3 (fr) 2006-05-24
EP1375026B1 true EP1375026B1 (fr) 2008-08-13

Family

ID=29558965

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03356082A Expired - Lifetime EP1375026B1 (fr) 2002-05-31 2003-05-27 Pièces coulées forgées sans traces d'éjecteurs

Country Status (5)

Country Link
EP (1) EP1375026B1 (es)
AT (1) ATE404306T1 (es)
DE (1) DE60322787D1 (es)
ES (1) ES2310646T3 (es)
FR (1) FR2840242B1 (es)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2233267A1 (de) * 1971-07-09 1973-01-25 Marshall Fowler Ltd Schmiedepresse
EP0119365B1 (fr) * 1983-03-14 1987-09-02 Thomas Di Serio Procédé pour fabriquer des pièces en aluminium ou en alliage d'aluminium
DE3323359C2 (de) * 1983-06-29 1986-11-20 Belzer-Dowidat Gmbh Werkzeug-Union, 5600 Wuppertal Verfahren zum Herstellen von Schmiedeteilen mit Hilfskörpern zur automatisierten Handhabung der Schmiedeteile
JPS60250840A (ja) * 1984-05-28 1985-12-11 Daido Steel Co Ltd 鍛造品取出し装置

Also Published As

Publication number Publication date
FR2840242A1 (fr) 2003-12-05
FR2840242B1 (fr) 2005-01-07
EP1375026A3 (fr) 2006-05-24
DE60322787D1 (de) 2008-09-25
ES2310646T3 (es) 2009-01-16
EP1375026A2 (fr) 2004-01-02
ATE404306T1 (de) 2008-08-15

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