EP0586314B1 - Verfahren zum Herstellen von Stücken aus Gusslegierungen mit verstärkten Teilen - Google Patents

Verfahren zum Herstellen von Stücken aus Gusslegierungen mit verstärkten Teilen Download PDF

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Publication number
EP0586314B1
EP0586314B1 EP93420350A EP93420350A EP0586314B1 EP 0586314 B1 EP0586314 B1 EP 0586314B1 EP 93420350 A EP93420350 A EP 93420350A EP 93420350 A EP93420350 A EP 93420350A EP 0586314 B1 EP0586314 B1 EP 0586314B1
Authority
EP
European Patent Office
Prior art keywords
inserts
rough casting
component
insert
working die
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
EP93420350A
Other languages
English (en)
French (fr)
Other versions
EP0586314A1 (de
Inventor
Thomas Di Serio
Francisco Exposito
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.)
COBAPRESS ENGINEERING SARL
Original Assignee
COBAPRESS ENGINEERING SARL
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 COBAPRESS ENGINEERING SARL filed Critical COBAPRESS ENGINEERING SARL
Publication of EP0586314A1 publication Critical patent/EP0586314A1/de
Application granted granted Critical
Publication of EP0586314B1 publication Critical patent/EP0586314B1/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
    • B21J5/002—Hybrid process, e.g. forging following casting
    • 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
    • B21K25/00—Uniting components to form integral members, e.g. turbine wheels and shafts, caulks with inserts, with or without shaping of the components

Definitions

  • the invention relates to a method for manufacturing parts from cast alloys and in particular aluminum, aluminum alloy with reinforcement zone.
  • the invention relates to the technical sector of the production of parts in cast alloys and in particular in aluminum, copper or others obtained in foundry, forging and similar processes.
  • foundry and forging techniques make it possible to manufacture multiple parts for various uses.
  • the foundry of cast alloys such as aluminum has the particular advantage of obtaining light parts while respecting the parameters and hardness criteria according to the applications considered.
  • These parts can be, for example, connecting rods for automobiles, cranks for cycle parts.
  • inserts made of metallic or other material are thus established, for example in the form of rings and which are introduced into the abovementioned openings of the part.
  • the alloy such as aluminum which while cooling ensures the maintenance of the insert.
  • This the latter may have ridges on its outer periphery or grooves for anchoring the material making it possible to stabilize the insert in the workpiece in position.
  • the use of the method is essentially limited to the installation on the part of a single insert. Indeed, the operation of casting the alloy and in particular the aluminum being carried out hot causes dimensional variations of the material and it is almost impossible to control with great precision the spacing of laying of several inserts.
  • the latter must be chosen from a material or material which is compatible with the temperature of the cast alloys and in particular of aluminum.
  • the aim sought after according to the invention was to remedy these drawbacks.
  • the applicant has also developed a process for manufacturing aluminum parts in foundries, in particular described in European patent n ° 119365.
  • This process consists in making foundry blanks which are subjected to cold or low temperature to an additional pressing operation, said blanks being arranged in the matrix imprints of dimensions substantially smaller than those of the molding.
  • the method according to the invention consists in manufacturing parts produced in the foundry of cast alloys and in particular aluminum of all shapes and profiles suitable according to the applications by producing blanks referenced as a whole by (1).
  • a blank is shown in Figure 1, and includes example a through opening (1.1) and a blind hole (1.2). It is obvious that said blank can have several through openings and / or several blind holes. The profile and dimensions of the openings and / or blind holes are established in any suitable manner according to the needs and criteria of application of the rough parts.
  • the blank can also have any recess on one of its faces of any shape and profile required.
  • the blank thus has a preset length (L) and a preset thickness (E).
  • the openings and / or holes and / or recesses advantageously have a substantially conical internal profile of a few degrees at an angle ( ⁇ ) to allow prepositioning of the blank and the reception of one or more inserts (2) of complementary profile. arranged and presented beforehand on a work receiving matrix (3). This matrix is established in any way and appropriate profile according to the shapes of the worked blank.
  • Said matrix is thus arranged directly or in an attached manner with one or more fingers (4) for centering and receiving the inserts (2).
  • the latter are mounted with play or floating around said finger (s) (4).
  • the matrix can be directly shaped to allow centering and positioning of the inserts (2).
  • the inserts are positioned on the fingers or directly on the matrix manually by the operator or also in the context of manufacturing automation with manipulators and all appropriate means ensuring their transfer from a dispensing bowl or similar means.
  • FIG. 3 shows the positioning of the blank in the matrix, said blank being adjusted by the opening (s) and the blind hole (s) with free adjustment.
  • the blank is centered in a cavity established on the working die, being of dimensions substantially smaller than the internal profile thereof.
  • the method according to the invention then consists in exerting a striking operation on the blank using a punch (5) or similar means by exerting this force according to the arrow F arranged axially in the same plane as that of laying inserts.
  • the blank of the treated part is thus deformed and the material comes to surround said inserts while ensuring their final connection by crimping.
  • the finished part is then of a dimension (L1) substantially greater than that (L) of the blank, and its thickness (E1) is substantially less than that (E) of the blank.
  • the part obtained integrates the inserts into the above-mentioned opening (s) and / or the blind hole (s), and / or the recesses (not shown).
  • the insert can be established in the form of a ring having a collar (2.1).
  • the ring is of height (H) substantially less than the thickness (E1) of the finished part; thus said ring is held by the material both at the level of its zone presenting the collar, as well as in its bottom part.
  • said insert has a bottom face (2.4).
  • the ring may have circular ridges (2.2) arranged along its outer periphery under all or part of its height.
  • the ring can also have one or more longitudinal grooves (2.3) established over all or part of its periphery. These striations and grooves thus constitute means for anchoring the blank material resulting from the deformation thereof during the striking operation.
  • inserts are unlimited and inserts of different shape can be placed on each part to be obtained without departing from the scope of the invention as claimed.
  • the insert (s) can be made of any metallic, composite or other material.
  • the punch When the striking operation has been carried out, the punch is raised by any appropriate means and the finished part is ejected in order to carry out a new operating cycle.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)

Claims (6)

  1. Verfahren zur Herstellung von Werkstücken aus Gusslegierung, insbesondere aus Aluminium (Aluminiumlegierung mit Verstärkungszone), wobei diese Teile Öffnungen bzw. Vertiefungen besitzen, um mit Kupplungsvorrichtungen und einem oder mehreren Einsätzen (2) zusammenzuwirken, die in die Öffnungen bzw. Vertiefungen eingeführt und bei einem Fließpressvorgang mit Hilfe eines Stempels (5) bzw. einer ähnlichen Vorrichtung und einer Arbeitsmatrize (3) durch Einpressen in das Werkstück eingebettet werden, um Verstärkungszonen zu bilden,
       wobei der Rohling (1) des Werkstücks auf der Seite, die der Arbeitsmatrize (3) gegenüberliegen soll, eine oder mehrere ausführende Öffnungen (1.1) und/oder ein oder mehrere Grundlöcher (1.2) und/oder eine oder mehrere Aussparungen besitzt, wobei diese Öffnungen (1.1) und/oder Grundlöcher (1.2) und/oder Aussparungen ein konisches Profil von einigen Grad für die Aufnahme und Vorzentrierung eines oder mehrerer der besagten Einsätze (2) aufweisen,
       und wobei nach der Herstellung des Rohlings (1) für das herzustellende Werkstück ein oder mehrere dieser Einsätze (2), die zum Zentrieren und Einführen in die am Rohling (1) vorgeformten Öffnung(en) (1.1) und/oder Aussparungen und/oder Grundlöcher (1.2) bestimmt sind, vorher auf die Arbeitsmatrize (3) gesetzt werden,
       und wobei diese Einsätze (2) zum Positionieren und Zentrieren des Rohlings (1) in einer aufnehmenden Vertiefung auf der Arbeitsmatrize (3) dienen, die der endgültigen Form des Fertigteils entspricht, wobei die Abmessungen des Rohlings leicht geringer sind als das Innenprofil der Vertiefung, die vollständig durch das Fertigteil ausgefüllt wird,
       und wobei der in der besagten Einsenkung positionierte und zentrierte Rohling (1) dann durch den Stempel (5) oder eine ähnliche Vorrichtung für die endgültige Formgebung und die Umformung des Rohlingwerkstoffs (1) in der Matrize (3) fließgepresst wird, um durch Einpressen des bzw. der Einsätze (2) eine feste und dauerhafte Einbettung zu erzielen und dabei je nach Bedarf, Anwendungen und Verwendungszwecken des sich ergebenden Werkstücks örtliche Verstärkungszonen zu bilden.
  2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Einsätze (2) frei und lose sitzend vorpositioniert werden.
  3. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Einsätze (2) unmittelbar auf der Arbeitsmatrize (3) vorpositioniert werden.
  4. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass der Rohling (1) eine vorgegebene Länge (L) und Dicke (E) aufweist, während das aus dem Rohling (1) hergestellte Fertigteil eine leicht unter derjenigen (L) des Rohlings (1) liegende Länge (L1) und eine leicht unter derjenigen (E) des Rohlings (1) liegende Dicke (E1) besitzt.
  5. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass der Einsatz (2) die Form eines Ringes besitzt und einen Bund (2.1) aufweist, wobei die Höhe des Ringes geringer ist als die Dicke (E1) des Fertigteils.
  6. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Einsätze (2) auf Zentrierstiften (4), die auf der Arbeitsmatrize (3) ausgebildet sind, vorpositioniert werden.
EP93420350A 1992-08-31 1993-08-26 Verfahren zum Herstellen von Stücken aus Gusslegierungen mit verstärkten Teilen Expired - Lifetime EP0586314B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9210655 1992-08-31
FR9210655A FR2695050B1 (fr) 1992-08-31 1992-08-31 Procédé de fabrication de pièces en alliages coulés avec zones de renforcement.

Publications (2)

Publication Number Publication Date
EP0586314A1 EP0586314A1 (de) 1994-03-09
EP0586314B1 true EP0586314B1 (de) 1997-05-02

Family

ID=9433265

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93420350A Expired - Lifetime EP0586314B1 (de) 1992-08-31 1993-08-26 Verfahren zum Herstellen von Stücken aus Gusslegierungen mit verstärkten Teilen

Country Status (6)

Country Link
EP (1) EP0586314B1 (de)
AT (1) ATE152377T1 (de)
DE (1) DE69310294T2 (de)
DK (1) DK0586314T3 (de)
ES (1) ES2101275T3 (de)
FR (1) FR2695050B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19606079C5 (de) * 1996-02-19 2004-12-02 Carl Dan. Peddinghaus Gmbh & Co Kg Aluminium-Achsschenkel oder Radträger mit eingesetztem Stahlzapfen und Verfahren zu dessen Herstellung
EP2164999A1 (de) 2007-07-09 2010-03-24 Bharat Forge Aluminiumtechnik GMBH & CO. KG Giessen-schmieden von knetlegierungen

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2969516B1 (fr) 2010-12-23 2013-08-16 Saint Jean Ind Procede de fabrication de noyau de sel par compaction isostatique uilisable en fonderie ou en fonderie-forgeage
FR3051697B1 (fr) 2016-05-27 2018-05-11 Saint Jean Industries Procede de fabrication d'une piece constituee au moins partiellement d'un alliage metallique, et methode d'optimisation.

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2944326A (en) * 1955-06-02 1960-07-12 Gen Electric Method of staking blades
FI42946B (de) * 1967-06-09 1970-09-02 Kynsi Oy
US3443617A (en) * 1967-11-02 1969-05-13 Standard Pressed Steel Co Press insert
DE2244945A1 (de) * 1972-09-13 1974-03-21 Siemens Ag Verfahren zum mechanischen verbinden von buchsenartigen teilen mit platineartigen teilen
US4145798A (en) * 1977-10-21 1979-03-27 Federal-Mogul Corporation Forging recessed configurations on a body member
JPS59141341A (ja) * 1983-02-02 1984-08-14 Hitachi Ltd ２個の金属部材の結合方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19606079C5 (de) * 1996-02-19 2004-12-02 Carl Dan. Peddinghaus Gmbh & Co Kg Aluminium-Achsschenkel oder Radträger mit eingesetztem Stahlzapfen und Verfahren zu dessen Herstellung
EP2164999A1 (de) 2007-07-09 2010-03-24 Bharat Forge Aluminiumtechnik GMBH & CO. KG Giessen-schmieden von knetlegierungen

Also Published As

Publication number Publication date
DE69310294D1 (de) 1997-06-05
DE69310294T2 (de) 1997-08-28
EP0586314A1 (de) 1994-03-09
ES2101275T3 (es) 1997-07-01
ATE152377T1 (de) 1997-05-15
FR2695050A1 (fr) 1994-03-04
FR2695050B1 (fr) 1994-10-21
DK0586314T3 (da) 1997-11-03

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