EP0272186A1 - Direkt-Strangpressverfahren an einer senkrechten Schmiedepresse und Einrichtung dazu - Google Patents

Direkt-Strangpressverfahren an einer senkrechten Schmiedepresse und Einrichtung dazu Download PDF

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Publication number
EP0272186A1
EP0272186A1 EP87402874A EP87402874A EP0272186A1 EP 0272186 A1 EP0272186 A1 EP 0272186A1 EP 87402874 A EP87402874 A EP 87402874A EP 87402874 A EP87402874 A EP 87402874A EP 0272186 A1 EP0272186 A1 EP 0272186A1
Authority
EP
European Patent Office
Prior art keywords
pot
spinning
press
die
spinning pot
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
EP87402874A
Other languages
English (en)
French (fr)
Other versions
EP0272186B1 (de
Inventor
Stéphane Claude Georges Garyga
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.)
Safran Aircraft Engines SAS
Original Assignee
Societe Nationale dEtude et de Construction de Moteurs dAviation SNECMA
SNECMA 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 Societe Nationale dEtude et de Construction de Moteurs dAviation SNECMA, SNECMA SAS filed Critical Societe Nationale dEtude et de Construction de Moteurs dAviation SNECMA
Publication of EP0272186A1 publication Critical patent/EP0272186A1/de
Application granted granted Critical
Publication of EP0272186B1 publication Critical patent/EP0272186B1/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
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/21—Presses specially adapted for extruding metal
    • B21C23/212—Details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/02—Making uncoated products
    • B21C23/04—Making uncoated products by direct extrusion
    • B21C23/08—Making wire, bars, tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/21—Presses specially adapted for extruding metal

Definitions

  • the present invention relates to a direct spinning process particularly suitable for carrying out operations for spinning superalloy parts on a vertical forging press and it also relates to a spinning tool specially designed for the implementation of this process.
  • the tool specially designed for the implementation of the method according to the invention is characterized in that it comprises means for securing between the spinning pot and the upper press table so that the upper slide can be actuated independently or on the contrary, the spinning pot can follow the movements of said slide.
  • this tool also includes a sheath, disposed under the die and closed at its lower end so that the spun part is contained in said sheath during spinning and the ejector presses on said sheath which lifts the die when said ejector is activated.
  • FIG. 1 shows a movable vertical forging press table used for implementing the direct spinning process according to the invention.
  • Said tool includes a lower riser 2 fixed to the table 1 by any known means of the bolt type cooperating with slides, for example, then an intermediate wedge 3 interposed between said lower riser 2 and a pot riser 4 secured to each other by bolts 5.
  • a lower outer pot 6 secured to it by bolts 7, an intermediate pot 8 of die and inside this latter a plate 9 reinforcement of the die supporting a die 10.
  • the bore 8a of the intermediate pot 8 of the die and the cooperating external diameters, respectively 9a and 10a of the reinforcement 9 and of the die 10 are preferably conical to allow them to be lifted as will be described in more detail below.
  • the bore 9b of the reinforcement 9 is slightly greater than that of the corresponding edge 10b of the die in order to allow the passage of the extruded part as will be described below while the die 10 has an evolving internal shape 10c adapted to the flow metal during the spinning operation.
  • the external face 10a of the die 10 has at least two holes 11 capable of being used for handling.
  • Above the lower outer pot 6 is placed an upper outer pot 12 which carries on its outer surface 12a at least two hooking lugs 13 pierced with a hole 14 and having a vertical slot.
  • Above the intermediate pot 8 of the die is placed an intermediate pot 15 of spinning inside which is placed a shell 16. Inside the spinning pot is shown a piece 17 surmounted by a support washer 18.
  • the movable table 1, the extensions 2 and 4 and wedge 3 each have, respectively, a central bore 1a, 2a, 4a and 3a and inside is arranged a tubular sheath 19, closed at its lower end by a cover of support 20.
  • the bore 4a comprises for example a flange 4b capable of guiding the sheath 19 at its upper part and a shim 21 disposed between the bores 3a and the and the sheath 19 is also capable of serving as a guide and also serves to centering of the extension 2 relative to the table while a retaining wedge 22 integral with the sheath 19 cooperates with the bore 4a and cannot move beyond the rim 4b.
  • 23 represents the upper slide of the press on which are mounted the elements complementary to those which have been described with reference to FIG. 2 and constituting with them said direct spinning tooling.
  • Said tool comprises an upper distribution table 24 secured, for example by bolts 25, with a punch holder plate 26 to which is fixed, for example by means of screws 27 a washer 28 which ensures the fixing of a punch 29 on said plate 26.
  • the washer 28 arrives at the end of the race by pressing on the pot 15 in order to limit the stroke.
  • the upper table 24 has at least two holes for the passage of an axis 30 for fixing a tie rod 31 the other end of which cooperates with the slot in the tab 13 and a groove 32 for the passage of a passing pin 33 in the hole 14 of the tab 13, as can be seen in FIG. 3.
  • Figure 5 shows a passage 6a of a bar 34 above the lower outer pot 6 for the positioning of a support wedge 35 disposed on top of the intermediate pot 8 of die.
  • FIG. 6 shows an extra thickness washer 18a placed on the support washer 18.
  • Figures 1 to 10 show the successive stages of an embodiment of the direct spinning process on a vertical forging press, according to the invention.
  • FIGs 5,6 and 7 show an additional phase of the method which is possibly used when it is observed that the edge of the extruded part 17a remains attached to the shell 16, which would prevent translation out of under the press of the assembly lower, or that the support washer 18 remains stuck in the shell 16.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
EP87402874A 1986-12-17 1987-12-16 Direkt-Strangpressverfahren an einer senkrechten Schmiedepresse und Einrichtung dazu Expired - Lifetime EP0272186B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8617635 1986-12-17
FR8617635A FR2608473B1 (fr) 1986-12-17 1986-12-17 Procede de filage direct sur presse a forger verticale et outillage de mise en oeuvre

Publications (2)

Publication Number Publication Date
EP0272186A1 true EP0272186A1 (de) 1988-06-22
EP0272186B1 EP0272186B1 (de) 1991-05-22

Family

ID=9341985

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87402874A Expired - Lifetime EP0272186B1 (de) 1986-12-17 1987-12-16 Direkt-Strangpressverfahren an einer senkrechten Schmiedepresse und Einrichtung dazu

Country Status (5)

Country Link
US (1) US4787234A (de)
EP (1) EP0272186B1 (de)
JP (1) JPS63248533A (de)
DE (1) DE3770250D1 (de)
FR (1) FR2608473B1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108927416B (zh) * 2018-07-09 2019-07-23 中国兵器工业第五九研究所 一种开放内型正反挤压复合成形方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE542045C (de) * 1926-12-09 1932-01-19 Kreidler Dipl Ing Alfred Strangpresse zum Kalt- oder Warmpressen von Stangen, Roehren, Baendern, Profilen usw.
FR1068583A (fr) * 1951-12-24 1954-06-28 Schuler L Ag Procédé pour la fabrication des tubes sur une presse à filer, et presse à filer adaptée à ce travail
US2954869A (en) * 1957-08-14 1960-10-04 Lake Erie Machinery Corp Extrusion press
GB909189A (en) * 1959-12-24 1962-10-24 Sack Gmbh Maschf Improvements relating to extrusion presses
FR1318691A (fr) * 1962-01-08 1963-02-22 Loewy Eng Co Ltd Presse à filer les billettes avec support mobile d'ensemble porte-filière

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2860775A (en) * 1954-10-05 1958-11-18 Charles A Brauchler Split die and container for extrusion press
JPS5952004B2 (ja) * 1981-02-10 1984-12-17 宇部興産株式会社 コンテナ交換装置を備えた押出プレス

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE542045C (de) * 1926-12-09 1932-01-19 Kreidler Dipl Ing Alfred Strangpresse zum Kalt- oder Warmpressen von Stangen, Roehren, Baendern, Profilen usw.
FR1068583A (fr) * 1951-12-24 1954-06-28 Schuler L Ag Procédé pour la fabrication des tubes sur une presse à filer, et presse à filer adaptée à ce travail
US2954869A (en) * 1957-08-14 1960-10-04 Lake Erie Machinery Corp Extrusion press
GB909189A (en) * 1959-12-24 1962-10-24 Sack Gmbh Maschf Improvements relating to extrusion presses
FR1318691A (fr) * 1962-01-08 1963-02-22 Loewy Eng Co Ltd Presse à filer les billettes avec support mobile d'ensemble porte-filière

Also Published As

Publication number Publication date
FR2608473B1 (fr) 1989-03-17
EP0272186B1 (de) 1991-05-22
DE3770250D1 (de) 1991-06-27
US4787234A (en) 1988-11-29
JPS63248533A (ja) 1988-10-14
FR2608473A1 (fr) 1988-06-24

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