WO2012107031A1 - Dispositif de bordage d'extrémités de tuyaux - Google Patents

Dispositif de bordage d'extrémités de tuyaux Download PDF

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Publication number
WO2012107031A1
WO2012107031A1 PCT/DE2012/100015 DE2012100015W WO2012107031A1 WO 2012107031 A1 WO2012107031 A1 WO 2012107031A1 DE 2012100015 W DE2012100015 W DE 2012100015W WO 2012107031 A1 WO2012107031 A1 WO 2012107031A1
Authority
WO
WIPO (PCT)
Prior art keywords
tool
holding unit
pipe
axis
peripheral wall
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.)
Ceased
Application number
PCT/DE2012/100015
Other languages
German (de)
English (en)
Inventor
Olaf Bode
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.)
Rothenberger AG
Original Assignee
Rothenberger 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 Rothenberger AG filed Critical Rothenberger AG
Priority to DE112012000253T priority Critical patent/DE112012000253A5/de
Publication of WO2012107031A1 publication Critical patent/WO2012107031A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D41/00—Application of procedures in order to alter the diameter of tube ends
    • B21D41/02—Enlarging
    • B21D41/021—Enlarging by means of tube-flaring hand tools

Definitions

  • the invention relates to a device for crimping pipe ends with a holding unit for holding one
  • crimping tube and a can be brought to the end of the tube to be flanged crimping unit, wherein the holding unit against each other movable clamping parts, between which the crimped tube is clamped and one of the clamping parts is held on a holder, which is connected to a handle part, and wherein the flanging unit a
  • the invention which is movable by means of a feed member in the direction towards the end of the pipe to be flanged.
  • the invention further relates to a flanging unit and a holding unit for a device for flaring pipe ends.
  • a device of the type mentioned here is from the product catalog of the applicant (Hauptkatalog 2010/2011,
  • the device has a holding unit, which serves to hold a tube to be flanged.
  • the holding unit has for this purpose two mutually movable clamping parts between which the pipe to be flanged is clamped.
  • one of the clamping parts is held translationally displaceable on the housing of the hemming device, which can be moved against the other clamping part.
  • the movement of the one clamping part against the other clamping part is possible by means of an actuating mechanism, which is an outward
  • the handle part is for actuating the actuating mechanism against another handle part, which is integrally formed on the housing of the hemming device, movable.
  • the two handle parts are like each other
  • Bördelvorgang without edition of the device, for example, on a work table to make.
  • the known device are two retaining bolts laterally from the holding unit to the outside.
  • a support plate is arranged, on which the crimping tool of the known device is mounted so displaceable that the crimping tool can be moved in the direction against the clamped end of the pipe to be crimped.
  • the retaining bolts are arranged at a distance from each other, so that the crimping tool freely accessible from the outside. Damage to the crimping tool, for example due to mechanical effects from the outside, is thereby promoted, so that an unwanted premature replacement of the crimping tool can be the result.
  • Clamping part are fixed.
  • the retaining bolts on the support plate by means of screws are detachably arranged. In a first step, therefore, the first
  • the crimping tool can be moved against the end of the clamped pipe to be crimped and the pipe end
  • the invention is therefore the object of a
  • crimping tool of the device should be protected from external influences.
  • a device according to the invention for crimping pipe ends has a holding unit for holding a pipe to be crimped and a crimping unit which can be brought into operative position on the end of the pipe to be crimped.
  • the holding unit has two
  • the tube to be flanged may be a steel tube.
  • the tube to be flanged copper, brass, aluminum or an alloy of at least one of the aforementioned substances.
  • tubes made of all materials in the holding unit can be clamped, which can be crimped.
  • the device is thereby durable by a user in the hand, so that the device does not require a table or other support surface for the beading of the tube.
  • the crimping unit has a tool, which is movable by means of a feed member in the direction towards the end of the pipe to be flanged.
  • the feed member is held on a peripheral wall around the tool, which at the
  • Holding unit is fixed and in the fixed position of
  • the device according to the invention for crimping pipe ends also referred to below as a crimping device, is easy to handle. Because the fixation of the Flanging unit on the holding unit is decoupled according to the invention from the position of a displaceable clamping member, so that jamming of the pipe to be flanged between the
  • Clamping parts can be made without having to solve the connection between the flanging unit and the holding unit.
  • Holding unit is fixed, which around the tool or
  • Beading tool is circumferential, is at the same time the tool of external influences, in particular mechanical effects from the outside, protected in the flanging device according to the invention. Also is by the circumferential wall a
  • the crimping device according to the invention is particularly suitable for crimping pipes, which are used for example in refrigeration and / or automotive technology.
  • ends of brake lines can be crimped by means of the crimping device in order to be able to connect them mechanically, for example by means of corresponding screwed connections.
  • flanging is to be understood to mean widening of an end of a pipe by forming by means of the tool.
  • the peripheral wall is fixed or attached to the holding unit.
  • flanging unit and holding unit are permanently connected to each other.
  • the circumferential wall is formed by the peripheral wall of a pipe or pipe section, whose on the
  • Holding unit fixed end or end is designed without flanges.
  • the device according to the invention is relatively light in weight, since for connecting the pipe or pipe section with the holding unit from the pipe or pipe section laterally outward flange is not realized and thus the weight of such a flange is saved. Also, this is the invention
  • Pipe section is held centered in a bore of the holding unit.
  • the centering can be done by a in
  • Pipe section be formed so that the pipe or the
  • Pipe section so that it can be inserted into the hole. Preference is given to the pipe or the pipe section in abutment against a collar in the transition between the outer wall with the reduced diameter and the outer wall with the
  • the circumferential wall of the holding unit is mechanically connected.
  • Holding unit is thereby realized in a particularly simple manner.
  • the circumferential wall on the holding unit can be made detachable, so that disassembly of the flanging unit from the holding unit can be carried out in a simple manner.
  • the flanging unit can be released from the holding unit when the circulating
  • Wall has a thread which corresponds to a mating thread of the holding unit.
  • Alignment in particular axial alignment, relative to the tube to be flanged brings.
  • peripheral wall and the peripheral wall may be provided that the peripheral wall and the peripheral wall
  • Holding unit form a Ba onettverBank. Also, this is a solvable in a technically simple manner
  • the peripheral wall is fixable or fixed to the holder.
  • the holder preferably forms the housing of the flanging device and provides at least for at least one of the clamping parts an enclosure. To the side of the
  • connection of the circumferential wall to the holder is technically particularly easy to implement. It makes sense that the connection of peripheral
  • Wall and holder is interrupted by a portion in which a slidably guided on the holder guide element is inserted, to which one of the clamping parts is connected.
  • the peripheral wall can be designed in a particularly stable construction with possibly larger dimensions, without thereby the displacement movement of the one Clamping part is adversely affected against the other clamping member for jamming the pipe to be flanged.
  • the circumferential wall can be used as a sleeve, pipe,
  • Sleeve section, pipe section or the like hollow body may be formed.
  • Forming flanging device according to the invention.
  • the threaded spindle also referred to as a motion screw, serves to at least partially convert a rotating movement into a translatory movement
  • Feed movement or a feed movement in combination with a rotational movement of the tool allows.
  • a bearing is provided between the circumferential wall and the tool and / or feed member, against which the Tool and / or the feed member supported in the radial direction.
  • the bearing is as a rolling bearing, in particular
  • Needle roller bearings or roller bearings formed.
  • the bearing can be used as plain bearings or rolling bearings, in particular
  • Needle bearing or roller bearings be formed.
  • the bearing may be the bearing, which is arranged between the circumferential wall and the tool and / or feed member. Also, it can be a
  • Rotation axis rotatable cone is formed, whose
  • Central axis is at an angle to the axis of rotation, so the central axis of the cone crosses the axis of rotation.
  • the cone is characterized eccentric with respect to the axis of rotation of the
  • Inner wall of the end of the tube to be crimped completes.
  • the tool is formed by such an eccentrically arranged cone, and the tool and / or the
  • Feed member or a arranged between the feed member and tool cylindrical body is supported in the radial direction with respect to the axis of rotation against the peripheral wall.
  • the radial forces occurring during the tumbling movement of the eccentrically arranged flared cone are absorbed by the peripheral wall, so that the feed member or the flared cone against the end to be flanged to the pipe positionally accurate, d. H. is moved in the radial direction without evasive movement of the crimping cone.
  • the tool and / or the feed member is supported in the radial direction with respect to the rotational movement against a bearing, which in turn is supported against the circumferential wall, for example, in the tumbling motion of the
  • the bearing may be a rolling bearing, for example in the manner of a ball bearing, roller bearing and needle bearing.
  • the cylindrical body in the radial Direction relative to the axis of rotation with the interposition of a bearing against the circumferential wall is supported to keep any friction as low as possible.
  • the axis of rotation of the tool and optionally the feed member is located in the center of the clamped by the clamping parts pipe.
  • a preferred embodiment of the invention is that the circumferential wall is fixed to the holding unit, wherein the circumferential wall is formed by the peripheral wall of a pipe or pipe section, whose on the
  • Holding unit fixed end portion is formed without a flange, and the tool is formed by a rotatable about a rotation axis cone whose central axis is at an angle to the axis of rotation, and the tool and / or the
  • the tool by one to a Rotary axis rotatable cone is formed, whose central axis coincides with the axis of rotation.
  • Rotary axis is substantially parallel spaced or arranged.
  • Flanging device each rotatable
  • each of the clamping parts has a plurality of distributed over the circumference arranged receptacles for a tube to be flanged, wherein the receptacles for receiving tubes having different diameters corresponding different dimensions.
  • Clamping part are preferably over the circumference in the manner of a
  • Circular segment or semicircle formed so that two opposing receptacles same dimension of the two clamping parts the outer periphery of the associated to
  • Beading tube substantially include and in
  • an actuating element can be provided by means of which the translationally movable clamping part can be brought into clamping position against the other clamping part.
  • the actuating element can be mounted pivotably on the holder for the one clamping part, so that the
  • the flanging device can have a stop against which the tube to be flanged can be brought into abutment with its end to be flanged.
  • the stop can be pivoted, in particular pivotable on the
  • Stop is thereby brought from its investment position relative to the tube to be flanged in a position in which the access of the crimping tool is released to be crimped to the end of the tube.
  • the invention relates to a flanging unit, which the characteristics of the flanging of the
  • the invention relates to a holding unit, which the
  • Fig. 1 shows a possible embodiment of a device for
  • Fig. 2 shows the device according to the figure 1 in another
  • Fig. 3 shows another possible embodiment of a
  • Fig. 4 shows the embodiment of the device according to the figure 3 in a working state when crimping a pipe end as a sectional view.
  • Figures 1 and 2 show a possible embodiment of a device 1 for flaring pipe ends.
  • the device 1 is suitable for crimping tubes up to a wall thickness of about 2.0 mm, preferably tubes up to a wall thickness of about 1.0 mm.
  • the tubes can be precision tubes, which
  • the device 1 can be used for crimping pipes for the refrigeration and / or automotive sector. in the
  • the device 1 has a holding unit 2, which for
  • the holding unit 2 has two mutually movable clamping parts 4, 5, between which the tube to be flanged 100 can be clamped.
  • One of the clamping parts 4, 5 is held on a holder 6, which is connected to a handle part 7.
  • the handle part 7 is integrally formed on the holder 6.
  • the holder 6 forms a housing which at least partially receives the one clamping part 4.
  • the other of the clamping parts 4, 5 is held translationally movable on the holder 6, so that the jamming of the
  • the clamping member 5 in the direction against the clamping member 4 translationally displaced and can be brought in clamping position against the tube to be flanged 100, so that the flanged tube 100 is held between the clamping parts 4 and 5 by clamping.
  • the device 1 has a flanging unit 3 with a tool (not visible in FIGS. 1 and 2) which can be moved in the direction of the end of the tube 100 to be flanged by means of a feed member 9.
  • the feed member 9 is actuated by means of a handle 17 by hand, wherein the handle 17 is preferably a rotatable handle, which the feed member 9 by means of a
  • Rotary movement in feed movement in the direction against the end to be flanged of the tube 100 moves.
  • the advancing member 9 is held on a wall 10 which revolves around the tool (not visible in FIGS. 1 and 2).
  • the encircling wall 10 can be fixed to the holding unit 2.
  • the Fixation of the wall 10 to the holding unit 2 realized such that in the fixed position of the wall 10 a sliding movement of a clamping member 5 is allowed against the other clamping part 4.
  • the encircling wall 10 can be fixed to the holder 6 of the holding unit 2.
  • the circumferential wall 10 can also be fixed to another component of the holding unit 2 in the manner according to the invention, after which in the
  • the circumferential wall 10 is fixed according to the embodiment according to Figures 1 and 2 to the holder 6 by means of thermal joining method, in particular to the holder. 6
  • a possible weld seam 32 can be seen, for example, from FIG.
  • the circumferential wall 10 is preferably formed as a pipe section.
  • the circumferential wall 10 has a peripheral portion 11, via which the connection of the
  • the section 11 may be formed for example by a material recess.
  • the section 11 is preferably formed in such a way that a guide element 12 of the device 1 therein
  • the guide element 12 is insertable.
  • the guide element 12 is preferably held translationally displaceable on the holder 6, in particular guided displaceably in a recess 19 of the holder 6.
  • the guide member 12 also serves as a storage for the
  • an actuating element 13 is provided, which acts on the guide element 12, so that upon actuation of the
  • the actuating element 13 is pivotally mounted about a pivot axis 18 on the holder 6.
  • the actuating element 13 on a handle portion 14 which is pivotable in the direction against the handle part 7 of the holder 6.
  • the handle part 7 and the handle portion 14 are preferably aligned or arranged in such a way that handle part 7 and handle portion 14 in the manner of the handles of a
  • Pliers are durable in one hand and the actuator 13 is actuated by one-hand operation and in this way the tube to be flanged can be brought into a press fit between the two clamping parts 4 and 5.
  • the clamping parts 4, 5 are preferably each designed to be rotatable and rotate about an axis of rotation 15 and 16 respectively.
  • Beading unit 3 ' can basically also be used in the device 1 according to FIGS. 1 and 2.
  • the holding unit 2 of the device 1 ' is formed according to the holding unit 2 of the device 1 according to Figures 1 and 2.
  • FIG. 3 shows the device 1 in one
  • Clamping parts 4, 5 to each other is so large that the tube to be flanged 100 can be threaded or inserted in the space between the clamping parts 4 and 5 in a simple manner.
  • the device 1 ' has a stop 20, which in the initial state of the device 1' in the intermediate space
  • the tube 100 to be flanged is already threaded into the interspace between the clamping parts 4 and 5 and lies with its end region against the outer circumference of the clamping part 4 and with its end face against the stop 20.
  • the central axis of the tube to be flanged lie the central axis of the tube to be flanged and the central axis or axis of rotation 21 of the flanging unit 3 'are coaxial with each other and form a common axis 31.
  • the axis 31 preferably extends transversely to the longitudinal extension of the holding unit 2.
  • the axis 31 is substantially perpendicular to the axis, along which the clamping part 5 can be moved translationally.
  • the axis 31 is arranged substantially at right angles to the longitudinal axis 22 of the holding unit 2.
  • the crimping unit 3 extends in the one direction and the clamped tube 100 in the other direction to the outside.
  • the flanging unit 3 ' can be actuated by the handle 17 by the feed member 9 is moved in the direction towards the end of the tube to be flanged by rotating the handle 17 17.
  • the feed member 9 is provided by a
  • Threaded spindle 23 is formed, which meshes with its external thread with an internal thread of the peripheral wall 10.
  • Burring tool 8 brought in a rotational movement about the rotation axis 21 and simultaneously moved by the threaded spindle 23 in a translational feed movement in the direction of the end of the tube to be flanged 100.
  • the flanging unit 3 ' is designed so that during a feed movement of the tool 8 in the direction towards the end of the tube to be flanged 100 and when the tool 8 against the end of the tube to be flanged 100 with a
  • the tool 8 is rotatably connected to a shaft 24, which in turn is rotatably connected to the handle 17.
  • the shaft 24 is disposed within the preferably hollow threaded spindle 23 and passes through the threaded spindle 23 to both end sides.
  • the handle 17 is also positively connected and / or non-rotatably connected to the threaded spindle 23 rotatably, so that upon rotation of the handle 17 about the rotation axis 21, the shaft 24 and in addition the threaded spindle 23 are set in rotational motion. Due to the rotational movement of the threaded spindle 23 relative to the on the holding unit. 2
  • the tool 8 is moved together with the shaft 24 and the handle 17 in the direction against the end of the tube to be flanged 100.
  • the rotationally fixed connection between the threaded spindle 23 and the handle 17 is realized in the embodiment of the flanging unit 3 'according to Figures 3 and 4 by a positive locking element 25, for example in the manner of a pin, which is preferably held displaceably on the handle 17 and in the Initial state of the device 1 'in a receptacle on the feed member 9 and the threaded spindle 23 engages.
  • Feed member 9 is dimensioned by means of the positive-locking element 25 in such a way that at a predetermined counterforce, which is generated by the contact force of the tool 8 against the tube 100 to be flanged, the positive-locking element 25 out of engagement from the receptacle on the advancing member 9 passes and thereby the rotational connection between the handle 17 and the
  • Feed member 9 is repealed. By the rotational movement of the handle 17, the tool 8 is then placed in a rotary motion without translatory feed movement.
  • the handle 17 and the feed member 9 are formed such that the positive-locking element 25 via a
  • the handle 17 is decoupled from the advancing member 9 against the restoring force of a spring element 26.
  • the spring element 26 is preferably within the
  • Feed member 9 is arranged and surrounds, for example, the shaft 2 4th
  • End wall portion of a cylindrical body 27 is formed. Preference is given between the fret and the end of the
  • Spring element 26 a bearing 30, in particular thrust bearing interposed to the relative rotational movement of the shaft 24 with the body 27 relative to the spring element 26 in Substantially frictionless and thus wear-free too
  • the spring element 26 is supported with its other end against the feed member 9, in particular a portion of the threaded spindle 23 from.
  • the cylindrical body 27 is guided with its outer circumference, preferably with the interposition of a radial bearing 28 on the inner circumference of the peripheral wall 10, so that guided in the direction of the tube 100 to be flanged
  • the cone is arranged with its central axis 29 at an angle to the axis of rotation 21 of the flanging unit 3', so that upon rotation of the
  • Handle 17 of the cone relative to the flanged tube 100 performs an eccentric or tumbling motion about the axis of rotation 21.
  • FIG. 4 shows the device 1 'in one
  • Beading unit 3 'applied contact force against the end of the tube to be flanged 100 between the clamping parts 4 and 5 is retained.
  • the tool 8 is moved against the end of the tube and completes the expansion of the pipe end.
  • the tube 100 to be flanged is threaded into the intermediate space between the clamping parts 4 and 5 and pushed against the stop 20.
  • the tube 100 is pressed in this position against the stop 20 by hand against the outer periphery of the clamping member 4, as shown in Figure 3 can be seen.
  • Clamping parts 4 and 5 is fixed. In the fixed position, the tube 100 to be flanged is coaxial with respect to
  • Rotary axis 21 of the flanging unit 3 ' is actuated by manually setting the handle 17 in rotary motion.
  • the cylindrical body 27 with the tool 8 is thereby brought into a feed movement in the direction against the tube 100 to be flanged, wherein the cylindrical body 27 with the shaft 24 with the handle 17 at the same time
  • Rotary movement about the axis 21 completes.
  • the tool 8 assumes due to its eccentric position with respect to the central axis 21 to a tumbling motion about the central axis 21.
  • the crimping unit 3 ' is so far moved with its tool 8 in the direction of the tube 100 until it on the zu
  • Pipe 100 unrolls and thereby the end of the tube 100 is crimped.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automatic Assembly (AREA)

Abstract

L'invention concerne un dispositif (1; 1') de bordage d'extrémités de tuyaux, comportant une unité de maintien (2) pour maintenir un tuyau à border (100) et une unité de bordage (3; 3') pouvant être amenée en position active sur l'extrémité du tuyau à border (100). L'unité de maintien (2) comprend des éléments de blocage (4, 5) mobiles l'un par rapport à l'autre, entre lesquels le tuyau à border (100) peut être bloqué, et un des éléments de blocage (4, 5) est maintenu sur un support (6) relié à un élément de préhension (7). L'unité de bordage (3; 3') comprend un outil (8) pouvant être déplacé, au moyen d'un organe d'avancement (9), en direction de l'extrémité du tuyau à border (100). Selon l'invention, l'organe d'avancement (9) est maintenu sur une paroi (10) entourant l'outil (8), pouvant être fixée à l'unité de maintien (2), et en position fixée de la paroi (10), un mouvement de coulissage d'un élément de blocage (5) par rapport à l'autre (4) est permis. L'invention concerne également une unité de bordage (3; 3') et une unité de maintien (2) pour un dispositif (1; 1') de bordage d'extrémités de tuyaux.
PCT/DE2012/100015 2011-02-09 2012-01-20 Dispositif de bordage d'extrémités de tuyaux Ceased WO2012107031A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112012000253T DE112012000253A5 (de) 2011-02-09 2012-01-20 Vorrichtung zum bördeln von rohrenden

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011000581.1 2011-02-09
DE201110000581 DE102011000581A1 (de) 2011-02-09 2011-02-09 Vorrichtung zum Bördeln von Rohrenden

Publications (1)

Publication Number Publication Date
WO2012107031A1 true WO2012107031A1 (fr) 2012-08-16

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2012/100015 Ceased WO2012107031A1 (fr) 2011-02-09 2012-01-20 Dispositif de bordage d'extrémités de tuyaux

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DE (2) DE102011000581A1 (fr)
WO (1) WO2012107031A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112658086A (zh) * 2020-11-10 2021-04-16 中国航发贵州黎阳航空动力有限公司 一种发动机带翻边衬套类零件的加工方法及装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE112012004572A5 (de) 2011-11-02 2014-08-14 Rothenberger Ag Spannelement für eine Spannvorrichtung zum Fixieren eines zu bördelnden Rohres
NO2884309T3 (fr) 2013-08-01 2018-09-08

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1297457A (en) * 1918-02-02 1919-03-18 Frederick M Furber Tube-flanging implement.
EP0133952A1 (fr) * 1983-07-26 1985-03-13 Rothenberger GmbH & Co. Werkzeuge-Maschinen KG Outil manuel pour élargir des tuyaux
US20060117827A1 (en) * 2004-12-07 2006-06-08 Kao Meng J Tube expander

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3109479A (en) * 1959-06-05 1963-11-05 Penn Aircraft Products Inc Flaring tool

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1297457A (en) * 1918-02-02 1919-03-18 Frederick M Furber Tube-flanging implement.
EP0133952A1 (fr) * 1983-07-26 1985-03-13 Rothenberger GmbH & Co. Werkzeuge-Maschinen KG Outil manuel pour élargir des tuyaux
US20060117827A1 (en) * 2004-12-07 2006-06-08 Kao Meng J Tube expander

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112658086A (zh) * 2020-11-10 2021-04-16 中国航发贵州黎阳航空动力有限公司 一种发动机带翻边衬套类零件的加工方法及装置

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DE102011000581A1 (de) 2012-08-09
DE112012000253A5 (de) 2013-08-14

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