EP1375026A2 - Gegossene Schmiedeteile ohne Auswerferspuren - Google Patents

Gegossene Schmiedeteile ohne Auswerferspuren Download PDF

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Publication number
EP1375026A2
EP1375026A2 EP03356082A EP03356082A EP1375026A2 EP 1375026 A2 EP1375026 A2 EP 1375026A2 EP 03356082 A EP03356082 A EP 03356082A EP 03356082 A EP03356082 A EP 03356082A EP 1375026 A2 EP1375026 A2 EP 1375026A2
Authority
EP
European Patent Office
Prior art keywords
preform
forging
burr
zones
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.)
Granted
Application number
EP03356082A
Other languages
English (en)
French (fr)
Other versions
EP1375026A3 (de
EP1375026B1 (de
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(A2) "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/de
Publication of EP1375026A3 publication Critical patent/EP1375026A3/de
Application granted granted Critical
Publication of EP1375026B1 publication Critical patent/EP1375026B1/de
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 foundry and forging of aluminum or alloy parts relating thereto.
  • COBAPRESS TM process as defined in the European Patent No. 119365, a method which implements the production of preforms obtained by foundry casting and which are then transferred for a forging operation.
  • the purpose of the invention was to obviate these disadvantages.
  • the method aims to deport the receiving zones of the ejectors out of the body of the considered preform, by implanting them on the lateral peripheral edge of the preform, in unsolicited areas, and in that during the forging phase, these areas allowing the ejection to find in the burr of the forged part and are cut and therefore evacuated, along with the burr.
  • FIG. 6 shows a preform (2) of a part obtained by casting foundry in aluminum or aluminum alloy.
  • This preform is any shape and size to meet the requirements of use and application of the part resulting from said preform.
  • said preform (2) presents along its border side device (2a), and externally of the part to be produced, one or continuous or spaced projecting zones (2b) which are capable of constitute contact plans of push 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 appendices complementary. This or these protruding zones are placed in zones out of constraints, so that there is no risk of concentration of constraints in these areas.
  • 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. .
  • FIG. 7 shows the ejection zone of this preform after forging. in the case where the side face of the workpiece is machined and the clearance of the burr (2d).
  • FIG. 8 shows the zone of ejection of this preform after forging in the case where the lateral face of the part remains raw and the relief of burr (2d).
  • the pinch that is designed allows a better cutting of the ejector and its burr (2nd) after forging.
  • the ejector is pinched and pushed back at the same time as the burr, which causes the ejector to be cut off at the same time as the burr.

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 Gegossene Schmiedeteile ohne Auswerferspuren Expired - Lifetime EP1375026B1 (de)

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 true EP1375026A2 (de) 2004-01-02
EP1375026A3 EP1375026A3 (de) 2006-05-24
EP1375026B1 EP1375026B1 (de) 2008-08-13

Family

ID=29558965

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03356082A Expired - Lifetime EP1375026B1 (de) 2002-05-31 2003-05-27 Gegossene Schmiedeteile ohne Auswerferspuren

Country Status (5)

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

Citations (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
EP0119365A1 (de) * 1983-03-14 1984-09-26 Thomas Di Serio Verfahren zur Herstellung von Stücken aus Aluminium oder Aluminiumlegierung
DE3323359A1 (de) * 1983-06-29 1985-01-10 Belzer-Dowidat Gmbh Werkzeug-Union, 5600 Wuppertal Verfahren zur automatisierten handhabung von schmiedeteilen
JPS60250840A (ja) * 1984-05-28 1985-12-11 Daido Steel Co Ltd 鍛造品取出し装置

Patent Citations (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
EP0119365A1 (de) * 1983-03-14 1984-09-26 Thomas Di Serio Verfahren zur Herstellung von Stücken aus Aluminium oder Aluminiumlegierung
DE3323359A1 (de) * 1983-06-29 1985-01-10 Belzer-Dowidat Gmbh Werkzeug-Union, 5600 Wuppertal Verfahren zur automatisierten handhabung von schmiedeteilen
JPS60250840A (ja) * 1984-05-28 1985-12-11 Daido Steel Co Ltd 鍛造品取出し装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 010, no. 122 (M-476), 7 mai 1986 (1986-05-07) & JP 60 250840 A (DAIDO TOKUSHUKO KK), 11 décembre 1985 (1985-12-11) *

Also Published As

Publication number Publication date
FR2840242A1 (fr) 2003-12-05
FR2840242B1 (fr) 2005-01-07
EP1375026A3 (de) 2006-05-24
DE60322787D1 (de) 2008-09-25
ES2310646T3 (es) 2009-01-16
EP1375026B1 (de) 2008-08-13
ATE404306T1 (de) 2008-08-15

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