EP2886810A1 - Method for the production of a cylindrical component - Google Patents

Method for the production of a cylindrical component Download PDF

Info

Publication number
EP2886810A1
EP2886810A1 EP14193323.4A EP14193323A EP2886810A1 EP 2886810 A1 EP2886810 A1 EP 2886810A1 EP 14193323 A EP14193323 A EP 14193323A EP 2886810 A1 EP2886810 A1 EP 2886810A1
Authority
EP
European Patent Office
Prior art keywords
blank
shell
housing
cylindrical
flat blank
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
EP14193323.4A
Other languages
German (de)
French (fr)
Other versions
EP2886810B1 (en
Inventor
Helmut Eibl
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.)
MTU Aero Engines AG
Original Assignee
MTU Aero Engines AG
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 MTU Aero Engines AG filed Critical MTU Aero Engines AG
Publication of EP2886810A1 publication Critical patent/EP2886810A1/en
Application granted granted Critical
Publication of EP2886810B1 publication Critical patent/EP2886810B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21KMAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00Making machine elements
    • B21K1/26Making machine elements housings or supporting parts, e.g. axle housings, engine mountings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01DNON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D25/00Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/24Casings; Casing parts, e.g. diaphragms, casing fastenings
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D22/00Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/20Deep-drawing
    • B21D22/26Deep-drawing for making peculiarly, e.g. irregularly, shaped articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21JFORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/06Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D5/00Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/01Bending sheet metal along straight lines, e.g. to form simple curves between rams and anvils or abutments
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49316Impeller making
    • Y10T29/4932Turbomachine making

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Forging (AREA)

Abstract

Die Erfindung betrifft ein Verfahren zur Herstellung eines zylinderförmigen Bauteils, insbesondere von Strömungsmaschinen. Dabei wird ein erwärmter Rohling bereitgestellt. Dann wird der Rohling zu einem flachen Rohteil (2) umgeformt. Anschließend wird das flache Rohteil (2) zu einer zylindrischen Halbschale (40) gebogen und/oder gerollt.The invention relates to a method for producing a cylindrical component, in particular of turbomachines. In this case, a heated blank is provided. Then the blank is formed into a flat blank (2). Subsequently, the flat blank (2) is bent and / or rolled into a cylindrical half-shell (40).

Description

Die Erfindung betrifft ein Verfahren zur Herstellung eines zylinderförmigen Bauteils nach dem Oberbegriff des Anspruchs 1.The invention relates to a method for producing a cylindrical component according to the preamble of claim 1.

Rohteile für zylinderförmige Gehäuse, wie z. B. Tuebwerksgehäuse, werden typischerweise ringgewalzt. Dabei wird der erwärmte torus-förmige Rohling zwischen einer innerhalb des Rohlings angeordneten zylindrischen Dornwalze und einer außerhalb des Rohlings angeordneten zylindrischen Hauptwalze gewalzt, wobei die Achsen der Dornwalze und der Hauptwalze parallel zur Achse des zu formenden Werkstücks ist. Gleichzeitig sind auf der zum Rohling diametral gegenüberliegenden Seite oberhalb und unterhalb des Rohlings zwei konisch-förmige Axialwalzen angeordnet. Die Dornwalze und die Hauptwalze bestimmen die radiale Dicke des Rohteils (auch als Wandstärke des Rohteils bezeichnet) und die beiden Axialwalzen bestimmen die axiale Länge des Rohteils. Aus Festigkeitsgründen weist das Gehäuse Rippen auf, so dass die Wandstärke des Rohteils mindestens so groß sein muss, wie die Rippenhöhe. Insbesondere weisen zylinderförmige Gehäuse typischerweise keine einheitliche Dicke auf. In die zylinderförmige Außenwandung des Rohteils werden nach dem Ringwalzen durch spanende Bearbeitung, wie z.B. Fräsen, die Rippen herausgearbeitet. Dabei ist insbesondere nachteilig, da ein sehr großes Spanvolumen erzeugt wird. Ferner muss bei längsgeteilten Gehäusen der Ring zu einer Halbschale aufgeschnitten werden, so dass ein weiterer Arbeitsschritt anfällt, um das Endprodukt herstellen zu können.Raw parts for cylindrical housing, such. B. Tuebwerks housing are typically ring-rolled. In this case, the heated toroidal blank is rolled between a cylindrical mandrel roller disposed within the blank and a cylindrical main roller disposed outside the blank, the axes of the mandrel roller and the main roller being parallel to the axis of the workpiece to be formed. At the same time, two conical-shaped axial rollers are arranged on the side diametrically opposite the blank above and below the blank. The mandrel roll and the main roll determine the radial thickness of the blank (also referred to as the wall thickness of the blank) and the two axial rolls determine the axial length of the blank. For reasons of strength, the housing has ribs, so that the wall thickness of the blank must be at least as large as the rib height. In particular, cylindrical housings typically do not have a uniform thickness. In the cylindrical outer wall of the blank after ring rolling by machining, such. Milling, the ribs worked out. It is particularly disadvantageous because a very large chip volume is generated. Furthermore, in the case of longitudinally split housings, the ring must be cut into a half shell, so that a further working step is required in order to be able to produce the end product.

Ferner müssen insbesondere Gehäuse von Strömungsmaschinen das sogenannte Durchschlagskriterium (containment) erfüllen. Dies bedeutet, dass im Gehäuse befindliche rotierende Bauteile bei einem Defekt, z.B. Bruch einer Laufschaufel, nicht durch das Gehäuse dringen dürfen. Werden die Gehäuse gegossen, so dass das Durchschlagskriteuum nur durch eine entsprechend große Masse erreicht werden kann. Dies hat den Nachteil, dass die Gehäuse schwerer sind als spanend hergestellte Gehäuse.Furthermore, in particular housings of turbomachinery must meet the so-called breakdown criterion (containment). This means that in the housing located rotating components in case of a defect, e.g. Break a blade, not allowed to penetrate through the housing. If the housing is cast so that the Durchschlagkriteuum can only be achieved by a correspondingly large mass. This has the disadvantage that the housing are heavier than machined housing.

Somit liegt der vorliegenden Erfindung die Aufgabe zu Grunde, ein Verfahren vorzustellen, das bei der Herstellung von zylinderförmigen Bauteilen weniger Spanvolumen entstehen und das in der Herstellung wirtschaftlicher ist.Thus, the present invention is based on the object to present a method which results in the production of cylindrical components less chip volume and is more economical to manufacture.

Die Aufgabe wird durch die Merkmale des Anspruchs 1 gelöst.The object is solved by the features of claim 1.

Die Erfindung betrifft eine Verfahren zur Herstellung eines zylinderförmigen Bauteils, insbesondere von Strömungsmaschinen. Zuerst wird ein erwärmter Rohling bereitgestellt. Dann wird der Rohling zu einem flachen Rohteil druckumgeformt. Anschließend wird das flache Rohteil zu einer zylindrischen Halbschale gebogen und/oder gerollt. Dabei kann der Rohling über die Rekristallisationstemperatur des Rohlingmaterials erwärmt werden. Dies hat den Vorteil, dass gegenüber dem Ringwalzen das Aufschneiden zu einer Halbschale wegfällt.The invention relates to a method for producing a cylindrical component, in particular of turbomachines. First, a heated blank is provided. Then the blank is pressure-formed into a flat blank. Subsequently, the flat blank is bent into a cylindrical half-shell and / or rolled. In this case, the blank can be heated above the recrystallization temperature of the blank material. This has the advantage that with respect to the ring rolling cutting to a half-shell is eliminated.

In einer vorteilhaften Ausgestaltung der Erfindung ist das flache Rohteil im Wesentlichen quaderförmig. Dies hat den Vorteil, dass durch die Druckumformung wenig überstehendes Material entsteht und das flache Rohteil eine ähnliche Form aufweist, wie das spätere Endprodukt.In an advantageous embodiment of the invention, the flat blank is substantially cuboid. This has the advantage that little overhanging material is formed by the pressure forming and the flat blank has a similar shape as the later end product.

In einer weiteren vorteilhaften Ausgestaltung der Erfindung weist das flache Rohteil an mindestens einer seiner Konturen ein Aufmaß auf. Dies hat den Vorteil, dass beim Druckumformen die fehlende Maßgenauigkeit damit ausgeglichen werden kann. Dabei kann das Aufmaß zwischen 0 und 10 mm betragen. Insbesondere kann das Aufmaß nur an den Konturen notwendig sein, die später eine Auflagefläche darstellen.In a further advantageous embodiment of the invention, the flat blank on at least one of its contours on an allowance. This has the advantage that when printing, the missing dimensional accuracy can be compensated. The allowance can be between 0 and 10 mm. In particular, the allowance may only be necessary on the contours, which later represent a bearing surface.

In einer weiteren vorteilhaften Ausgestaltung der Erfindung ist in mindestens einer der Oberflächen des Rohteils mindestens eine Rippe und/oder ein Auge geformt. Dabei werden diese Erhebungen (Rippen, Augen bzw. Augansätze) bei der Druckumformung gleich mitgeformt. Dies hat den Vorteil, dass diese Erhebungen nicht aus dem Vollmaterial herausgearbeitet werden müssen. Im Vergleich zum Ringwalzen entsteht kein bzw. kaum Spanvolumen. Dabei können die Erhebungen in vorteilhafterweise in der Oberfläche des Rohteils ohne Aufmaß hergestellt werden, so dass die Rippen, die Augen bzw. Augansätzen nicht nachbearbeitet werden müssen.In a further advantageous embodiment of the invention, at least one rib and / or one eye is formed in at least one of the surfaces of the blank. These elevations (ribs, eyes or eyes) are mitgeformt same during the pressure deformation. This has the advantage that these surveys do not have to be worked out of the solid material. Compared to ring rolling produces no or hardly any chip volume. In this case, the elevations can advantageously be produced in the surface of the blank without oversize, so that the ribs, the eyes or Augansätzen must not be reworked.

In einer weiteren vorteilhaften Ausgestaltung der Erfindung wird mindestens eine Auflagefläche der Halbschale auf ein Endmaß bearbeitet, insbesondere gefräst. Dies ist insbesondere vorteilhaft, weil damit eine höhere Maßgenauigkeit erzielt werden kann, als mit der Druckumformung überhaupt möglich ist. Eine Endbearbeitung ist dann nur noch an den erforderlichen Stellen, wie z.B. die Auflageflächen, notwendig, so dass nur noch ein Mindestmaß an Spanvolumen entsteht.In a further advantageous embodiment of the invention, at least one bearing surface of the half-shell is machined to a final dimension, in particular milled. This is particularly advantageous because it allows a higher dimensional accuracy can be achieved than with the pressure deformation is even possible. A finishing is then only in the required places, such as the bearing surfaces, necessary, so that only a minimum amount of chip volume.

In einer weiteren vorteilhaften Ausgestaltung der Erfindung erfolgt die Druckumformung per Gesenkschmieden. Bei diesem Verfahren ist die Form des Schmiedestücks (Rohteil) als Negativ im Ober- und Untergesenk abgebildet. Vorzugsweise werden geschlossene Gesenke verwendet. Dies hat den Vorteil, dass sehr sparsam mit dem Rohlingsmaterial umgegangen wird, da das Volumen des Rohlings nur etwas größer ist als die fertige Halbschale.In a further advantageous embodiment of the invention, the pressure forming is carried out by drop forging. In this method, the shape of the forging (blank) is shown as a negative in the upper and lower die. Preferably, closed dies are used. This has the advantage that it is handled very sparingly with the blank material, since the volume of the blank is only slightly larger than the finished half-shell.

In einer weiteren vorteilhaften Ausgestaltung der Erfindung weist ein Gehäuse zwei Halbschalen auf. Diese Halbschalen weisen nach der Druckumformung identische Außenkonturen auf. Dies hat den Vorteil, dass die obere Halbschale eines Gehäuses mit denselben Gesenken hergestellt werden kann, wie die untere Halbschale des Gehäuses, so dass nur ein Satz von Gesenken benötigt wird. Dies spart Werkzeugkosten. Die verschiedenen Halbschalen können unterschiedliche Augen für das Anbringen von Haltern aufweisen. Diese Unterschiede werden erst nach der Druckumformung in die entsprechende Halbschale eingearbeitet.In a further advantageous embodiment of the invention, a housing has two half shells. These half-shells have identical outer contours after the pressure deformation. This has the advantage that the upper half-shell of a housing can be made with the same dies as the lower half-shell of the housing, so that only one set of dies is needed. This saves tool costs. The different half shells may have different eyes for attaching holders. These differences are incorporated into the corresponding half shell only after the pressure has been converted.

Weitere Vorteilhafte Ausgestaltung der Erfindung sind in den Unteransprüchen wiedergegeben.Further advantageous embodiment of the invention are given in the dependent claims.

Im Weiteren werden anhand der schematischen Zeichnung bevorzugte Ausführungsbeispiele der Erfindung näher beschrieben. Dabei zeigen:

  • Figur 1: eine Draufsicht auf ein erfindungsgemäßes Rohteil, und
  • Figur 2: eine Schrägansicht auf eine erfindungsgemäße Halbschale.
Furthermore, preferred embodiments of the invention will be described in more detail with reference to the schematic drawing. Showing:
  • FIG. 1 a top view of a blank according to the invention, and
  • FIG. 2 : An oblique view of a half-shell according to the invention.

In der Figur 1 ist eine Draufsicht auf ein erfindungsgemäßes im Wesentlichen quaderförmiges Rohteil 2 zu sehen. Vorzugsweise wird vorab das flache Rohteil 2 mit geschlossenem Gesenk senkgeschmiedet. Das Rohteil 2 weist eine obere Längskante 4 und eine untere Längskante 6 auf, die an deren Enden über eine in der Figur 1 links abgebildete erste Querkante 8 und über eine in der Figur 1 rechts abgebildete zweite Querkante 10 verbunden sind. Zwischen den Kanten 4 bis 10 ist die Außenfläche 12 zu sehen. Auf der Außenfläche 12 entlang der oberen Längskante 4 ist ein erster Flanschansatz 14 angeformt, der die maximale Dicke dem des Rohteils 2 aufweist. Ferner ist auf der Außenfläche 12 entlang der unteren Längskante 6 ein zweiter Flanschansatz 16 angeformt, der ebenfalls die maximale Dicke dm des Rohteils 2 aufweisen kann. Zwischen den beiden Flanschansätzen 14 und 16 ist das Rohteil 2 etwas dünner ausgelegt und weist eine Dicke hR auf, die kleiner ist als die maximale Dicke dm.In the FIG. 1 is a plan view of an inventive substantially cuboidal blank 2 to see. Preferably, the flat blank 2 is forged in advance with closed die in advance. The blank 2 has an upper longitudinal edge 4 and a lower longitudinal edge 6, which at their ends via a in the FIG. 1 left first transverse edge 8 and one in the FIG. 1 Right second transverse edge 10 shown are connected. Between the edges 4 to 10, the outer surface 12 can be seen. On the outer surface 12 along the upper longitudinal edge 4, a first flange extension 14 is formed, which has the maximum thickness of the blank 2. Further, on the outer surface 12 along the lower longitudinal edge 6, a second flange projection 16 is formed, which may also have the maximum thickness d m of the blank 2. Between the two flange lugs 14 and 16, the blank 2 is designed somewhat thinner and has a thickness h R , which is smaller than the maximum thickness d m .

An der Außenfläche 12 grenzt entlang der unteren Längskante 6 die vordere ersteAuflagefläche 13. An der Außenfläche 12 grenzt entlang der oberen Längskante 4 die hintere nicht dargestellte zweite Auflagefläche 15. An der Außenfläche 12 grenzt entlang der ersten Querkante 8 die dritte Auflagefläche 17. An der Außenfläche 12 grenzt entlang der zweiten Querkante 10 die vierte nicht dargestellte Auflagefläche 19.On the outer surface 12, along the lower longitudinal edge 6, the front first abutment surface adjoins 13. On the outer surface 12 along the upper longitudinal edge 4, the rear, not shown second bearing surface 15 borders on the outer surface 12 along the first transverse edge 8, the third bearing surface adjacent 17. On the outer surface 12 adjacent along the second transverse edge 10, the fourth bearing surface, not shown 19th

Zwischen den Flanschansätzen 14 und 16 verlaufen mehrere Querrippen 18 bis 30, die hier parallel zu den Querkanten 8 und 10 verlaufen. Die Lage der Rippen wird typischerweise von den Festigkeitsanforderungen definiert. Dabei können alle Querrippen 18 bis 30 die gleiche Dicke dR aufweisen. Zwischen den Querrippen 22 und 24 sind zwei Augansätze 32 und 34 angeformt, die in einem späteren Verfahrensschritt durchbohrt werden können. Es ist auch denkbar, dass statt Augansätzen 32 und 34 direkt Augen beim Druckumformen erzeugt werden können. Dies würde eine spätere spanende Bearbeitung ersparen (z.B. Bohren).Between the flange lugs 14 and 16 extend a plurality of transverse ribs 18 to 30, which extend parallel to the transverse edges 8 and 10 here. The location of the ribs is typically defined by the strength requirements. In this case, all transverse ribs 18 to 30 may have the same thickness d R. Between the transverse ribs 22 and 24 two Augansätze 32 and 34 are formed, which can be pierced in a later method step. It is also conceivable that, instead of eye attachments 32 and 34, eyes can be generated directly during pressure forming. This would save a subsequent machining (eg drilling).

Die Querrippen 26 bis 30 können über eine Längsrippe 36 miteinander verbunden sein, wenn dies beispielsweise aus struktmmechanischen Gründen erforderlich ist.The transverse ribs 26 to 30 may be connected to one another via a longitudinal rib 36, if this is necessary, for example, for structur-mechanical reasons.

Die Außenfläche 12 mit allen entsprechenden Konturen, wie Rippen und/oder Augansätzen bzw. Augen, kann vorzugsweise ohne Aufmaß beim Gesenkschmieden hergestellt werden, so dass eine spätere Bearbeitung dieser Ausfläche 12 entfällt.The outer surface 12 with all the corresponding contours, such as ribs and / or eyebrows or eyes, can preferably be produced without oversize for swaging, so that a later processing of this surface 12 is omitted.

Das Rohteil 2 wird dann gebogen bzw. gerollt, so dass die in der Figur 2 abgebildete im Wesentlichen zylinderförmige Halbschale 40 entsteht. Dabei werden insbesondere die Längskante 4 und 6 gebogen, so dass die erste und zweite Auflagefläche 13 und 15 einen Halbkreis beschreiben, wobei die Außenfläche 12 die Mantelfläche des Halbzylinders darstellt. Nach dem Biegen können die einzelnen Auflagefläche 13, 15, 17 und 19 zusätzlich, vorzugsweise spanend, bearbeitet werden, um die erforderliche Maßgenauigkeit zu erhalten. So ist insbesondere eine hohe Planarität der Auflageflächen 17 und 19 erforderlich, wenn zwei solcher Halbschalen zu einem Gehäuse zusammengebaut werden sollen. Damit wird dann sichergestellt, dass zwischen den zwei Halbschalen 40 an den Auflageflächen 17 und 19 die erforderliche Dichtigkeit erreicht wird. Auf der Innenfläche 42 der Halbschale 40 können verschiedene Absätze 44 vorhanden sein.The blank 2 is then bent or rolled, so that in the FIG. 2 Imaged substantially cylindrical half shell 40 is formed. In particular, the longitudinal edges 4 and 6 are bent, so that the first and second support surface 13 and 15 describe a semicircle, wherein the outer surface 12 represents the lateral surface of the half-cylinder. After bending, the individual support surface 13, 15, 17 and 19 can be additionally machined, preferably by machining, in order to obtain the required dimensional accuracy. Thus, in particular a high planarity of the bearing surfaces 17 and 19 is required if two such half-shells to be assembled into a housing. This then ensures that between the two half-shells 40 on the bearing surfaces 17 and 19, the required tightness is achieved. On the inner surface 42 of the half-shell 40 different paragraphs 44 may be present.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

22
Rohteilblank
44
obere Längskanteupper longitudinal edge
66
untere Längskantelower longitudinal edge
88th
erste Querkantefirst transverse edge
1010
zweite Querkantesecond transverse edge
1212
Außenfläche von 2Outer surface of 2
1313
erste Auflageflächefirst contact surface
1414
erster Flanschansatzfirst flange attachment
1515
zweite Auflageflächesecond bearing surface
1616
zweiter Flanschansatzsecond flange attachment
1717
dritte Auflageflächethird contact surface
1818
Querrippetransverse rib
1919
vierte Auflageflächefourth bearing surface
2020
Querrippetransverse rib
2222
Querrippetransverse rib
2424
Querrippetransverse rib
2626
Querrippetransverse rib
2828
Querrippetransverse rib
3030
Querrippetransverse rib
3232
AugansätzeAugansätze
3434
AugansätzeAugansätze
3636
Längsrippelongitudinal rib
4040
Halb schaleHalf shell
4242
Innenfläche der HalbschaleInner surface of the half shell
4444
Absätzeparagraphs

Claims (9)

Verfahren zur Herstellung eines zylinderförmigen Bauteils, insbesondere für Strömungsmaschinen, mit folgenden Schritten: - Bereitstellen eines erwärmten Rohlings, - Druckumformen des Rohlings zu einem flachen Rohteil (2), durch gekennzeichnet, dass
das flache Rohteil (2) zu einer zylindrischen Halbschale (40) gebogen und/oder gerollt wird.
Method for producing a cylindrical component, in particular for turbomachines, with the following steps: Providing a heated blank, Pressure forming of the blank into a flat blank (2), characterized in that
the flat blank (2) is bent and / or rolled into a cylindrical half-shell (40).
Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass das flache Rohteil (2) im Wesentlichen quaderförmig ist.A method according to claim 1, characterized in that the flat blank (2) is substantially cuboid. Verfahren nach mindestens einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass das flache Rohteil (2) an mindestens einer seiner Konturen (13, 15, 17, 19) ein Aufmaß aufweist.Method according to at least one of the preceding claims, characterized in that the flat blank (2) has an oversize on at least one of its contours (13, 15, 17, 19). Verfahren nach Anspruch 3, dadurch gekennzeichnet, dass das Aufmaß zwischen 0 und 10 mm beträgt.A method according to claim 3, characterized in that the allowance is between 0 and 10 mm. Verfahren nach mindestens einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass in mindestens einer der Oberflächen (12) des Rohteils mindestens eine Rippe (18, 20, 22, 24, 26, 28, 30) und/oder ein Auge (32, 34) geformt ist.Method according to at least one of the preceding claims, characterized in that in at least one of the surfaces (12) of the blank at least one rib (18, 20, 22, 24, 26, 28, 30) and / or an eye (32, 34) is shaped. Verfahren nach mindestens einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass mindestens eine Auflagefläche (13, 15) der Halbschale (40) auf ein Endmaß bearbeitet, insbesondere gefräst, wird.Method according to at least one of the preceding claims, characterized in that at least one bearing surface (13, 15) of the half-shell (40) machined to a final dimension, in particular milled, is. Verfahren nach mindestens einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass die Druckumformung per Gesenkschmieden erfolgt.Method according to at least one of the preceding claims, characterized in that the pressure deformation takes place by drop forging. Gehäuse mit mindestens zwei Halbschalen nach mindestens einem der vorherigen Ansprüche, wobei die beiden Halbschalen (40) nach der Druckumformung identische Außenkonturen aufweisen.Housing with at least two half-shells according to at least one of the preceding claims, wherein the two half-shells (40) have identical outer contours after pressure deformation. Strömungsmaschine mit mindestens einem Gehäuse nach Anspruch 8 und/oder mit mindestens einer Halbschale (40) nach mindestens einem der Ansprüche 1 bis 7.Turbomachine with at least one housing according to claim 8 and / or with at least one half-shell (40) according to at least one of claims 1 to 7.
EP14193323.4A 2013-12-16 2014-11-14 Method for the production of a cylindrical component Not-in-force EP2886810B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102013225987.5A DE102013225987B3 (en) 2013-12-16 2013-12-16 Method for producing a cylindrical component, housing and turbomachine

Publications (2)

Publication Number Publication Date
EP2886810A1 true EP2886810A1 (en) 2015-06-24
EP2886810B1 EP2886810B1 (en) 2017-03-15

Family

ID=52006811

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14193323.4A Not-in-force EP2886810B1 (en) 2013-12-16 2014-11-14 Method for the production of a cylindrical component

Country Status (3)

Country Link
US (1) US9821368B2 (en)
EP (1) EP2886810B1 (en)
DE (1) DE102013225987B3 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115156854B (en) * 2022-07-26 2024-03-29 贵州航天电子科技有限公司 Processing method of semicircular columnar shell part

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2532738A1 (en) * 1974-07-22 1976-02-12 Nissan Motor METHOD OF FORMING A METAL SHEET
FR2329372A1 (en) * 1975-11-03 1977-05-27 Hillesheim Hans PROCESS AND DEVICE FOR PERFORMING INTERRUPTIONS IN A TAPE AND TAPE MATERIAL THUS OBTAINED
US4801070A (en) * 1987-05-11 1989-01-31 Rohr Industries, Inc. Engine duct and case construction
WO2013023867A1 (en) * 2011-08-17 2013-02-21 Evonik Röhm Gmbh Biaxial forming process for thick-walled acrylic sheet

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3992764A (en) * 1975-09-22 1976-11-23 The Torrington Company Method of forming a roller cage
US4083221A (en) * 1976-07-29 1978-04-11 Duffy Tool & Stamping, Inc. Parts forming apparatus and method
JPH07127646A (en) * 1993-10-29 1995-05-16 Ntn Corp Retainer for roller bearing
JP3826995B2 (en) * 2000-02-16 2006-09-27 トヨタ自動車株式会社 Manufacturing method of carrier
US20040250404A1 (en) * 2003-01-14 2004-12-16 Cripsey Timothy J. Process for press forming metal tubes
DE102010005059A1 (en) * 2010-01-20 2011-07-21 Schaeffler Technologies GmbH & Co. KG, 91074 Roller bearing cage for cylindrical, needle-shaped rolling element, has body, which consists of band made of flexible material, where recess is inserted in band for forming pocket, and band has band edge extending along periphery
DE102011004192A1 (en) * 2011-02-16 2012-08-16 Schaeffler Technologies Gmbh & Co. Kg planet

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2532738A1 (en) * 1974-07-22 1976-02-12 Nissan Motor METHOD OF FORMING A METAL SHEET
FR2329372A1 (en) * 1975-11-03 1977-05-27 Hillesheim Hans PROCESS AND DEVICE FOR PERFORMING INTERRUPTIONS IN A TAPE AND TAPE MATERIAL THUS OBTAINED
US4801070A (en) * 1987-05-11 1989-01-31 Rohr Industries, Inc. Engine duct and case construction
WO2013023867A1 (en) * 2011-08-17 2013-02-21 Evonik Röhm Gmbh Biaxial forming process for thick-walled acrylic sheet

Also Published As

Publication number Publication date
US20150165516A1 (en) 2015-06-18
EP2886810B1 (en) 2017-03-15
US9821368B2 (en) 2017-11-21
DE102013225987B3 (en) 2015-08-06

Similar Documents

Publication Publication Date Title
EP2004424B1 (en) Interchangeable wheel bearing unit, for example for commercial vehicles
DE102011112148B4 (en) Extruder and process for producing an extruder
EP2917597B1 (en) Raceway ring for bushing type bearing
DE10135588B4 (en) bearing ring
DE69820883T2 (en) ROLLED BEARING RING AND METHOD FOR THE PRODUCTION THEREOF
DE102009036347B4 (en) Method for producing a flanged wheel for a spherical roller bearing and spherical roller bearing with a flanged wheel produced according to the method
AT517989B1 (en) Method for surface compacting and calibrating a sintered component
DE102015115293A1 (en) Device for producing a hub unit
DE102011087444A1 (en) Method for producing bearing component e.g. outer ring of rolling bearing, involves punching lubrication holes in solid ring which is formed by cutting processing such as rotating, precision turning, forging or rolling
EP2886810B1 (en) Method for the production of a cylindrical component
EP3328572B1 (en) Method for producing a contoured ring rolling product
DE102016221840A1 (en) Outer ring for a turbocharger
WO2008074560A2 (en) Method for the production of a synchronizer ring of a synchronizing device
DE102019202234A1 (en) Method of making rings
EP3061561A1 (en) Method for producing a component and the component
DE102011102288A1 (en) Device for manufacturing spur gear that is utilized in e.g. automotive industry for vehicle gear box, has ejector performing screw movement in aperture of cutting plate with linear portion that is rectified for stamper movement
DE102014206637A1 (en) A method for producing a drum base for a laundry drum of a household appliance, laundry drum and household appliance
DE102011115954A1 (en) Method for manufacturing crankshaft of internal combustion engine, involves forming notches on fracture-separated regions of bearing pins
DE2207308A1 (en) Antifriction bearing rings and discs - made by non-cutting shaping from sheet metal
DE102016007550B4 (en) Method and apparatus for reducing ovality of a structural element having a substantially circular cross-section
DE102007012831B4 (en) Method of producing rolling element cages
DE102013021391A1 (en) Method for manufacturing crankshaft, involves arranging interconnected shaft portions over separating point in which positioning element is introduced, by which shaft portions are positioned relative to each other
DE102012007725A1 (en) Method for manufacturing crankshaft for internal combustion engine, involves performing mechanical surface treatment process on remaining surface areas of crankshaft element, after assembling crankshaft element on surface region
DE10028505C2 (en) Process for manufacturing bearing components
DE102010018112A1 (en) Production of a tapered roller bearing cage

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20141114

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

R17P Request for examination filed (corrected)

Effective date: 20151223

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

RIC1 Information provided on ipc code assigned before grant

Ipc: B21D 31/00 20060101ALI20160128BHEP

Ipc: B21D 26/055 20110101ALI20160128BHEP

Ipc: B21D 22/24 20060101ALI20160128BHEP

Ipc: F01D 25/24 20060101AFI20160128BHEP

Ipc: B21D 13/00 20060101ALI20160128BHEP

Ipc: B21D 22/00 20060101ALI20160128BHEP

Ipc: B21D 22/20 20060101ALI20160128BHEP

17Q First examination report despatched

Effective date: 20160617

REG Reference to a national code

Ref country code: DE

Ref legal event code: R079

Ref document number: 502014002999

Country of ref document: DE

Free format text: PREVIOUS MAIN CLASS: F01D0025240000

Ipc: B21D0005010000

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

RIC1 Information provided on ipc code assigned before grant

Ipc: F01D 25/24 20060101ALI20160915BHEP

Ipc: B21D 22/26 20060101ALI20160915BHEP

Ipc: B21D 5/01 20060101AFI20160915BHEP

Ipc: B21K 1/26 20060101ALI20160915BHEP

Ipc: B21J 5/06 20060101ALI20160915BHEP

INTG Intention to grant announced

Effective date: 20161014

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 875015

Country of ref document: AT

Kind code of ref document: T

Effective date: 20170415

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502014002999

Country of ref document: DE

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20170315

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170315

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170315

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170616

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170315

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170615

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170315

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170315

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170315

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170615

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170315

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170315

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170315

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170315

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170315

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170315

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170315

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 4

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170315

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170315

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170715

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170717

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502014002999

Country of ref document: DE

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170315

26N No opposition filed

Effective date: 20171218

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170315

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170315

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20171130

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20171130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20171114

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20171130

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170315

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20171114

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20171130

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20181122

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20181126

Year of fee payment: 5

Ref country code: FR

Payment date: 20181123

Year of fee payment: 5

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20141114

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170315

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170315

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170315

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502014002999

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170315

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20191114

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200603

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20191114

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20191130

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 875015

Country of ref document: AT

Kind code of ref document: T

Effective date: 20191114

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20191114