WO2009015815A1 - Verfahren zu herstellung eines dichtrings - Google Patents
Verfahren zu herstellung eines dichtrings Download PDFInfo
- Publication number
- WO2009015815A1 WO2009015815A1 PCT/EP2008/006042 EP2008006042W WO2009015815A1 WO 2009015815 A1 WO2009015815 A1 WO 2009015815A1 EP 2008006042 W EP2008006042 W EP 2008006042W WO 2009015815 A1 WO2009015815 A1 WO 2009015815A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- ring
- metal strip
- cutting
- laser
- sealing ring
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3248—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings provided with casings or supports
- F16J15/3252—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings provided with casings or supports with rigid casings or supports
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
- B23K26/24—Seam welding
- B23K26/26—Seam welding of rectilinear seams
- B23K26/262—Seam welding of rectilinear seams of longitudinal seams of tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/38—Removing material by boring or cutting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/328—Manufacturing methods specially adapted for elastic sealings
Definitions
- the invention relates to a method for producing a sealing ring in which a ring is first formed from an endless metal strip, in which the mutually contacting edges of the metal strip are integrally connected to one another.
- a ring is first made from a metal strip and then transferred by post-forming in the shape of a support ring.
- the touching edges are joined together by welding or soldering.
- the Nachverformen can be done by rolling or deep drawing, the support ring can be provided with various contours.
- a high surface quality is required for support rings at least on the outer peripheral side, since this surface forms a static sealing surface in order to seal the sealing ring relative to a housing. This requires good roundness and low roughness.
- soldering it is disadvantageous that, in order to achieve good capillary action, the distance between the contacting edges is low and that the surfaces are wettable have to.
- a cohesive connection by welding often result concave concavities at the junction, resulting from a material migration. These concave curvatures may result in leaks in the sealing ring.
- the edges of the metal strip must be formed as uniform as possible.
- the invention has for its object to develop the previously known method so that a high-quality and uniform weld can be created.
- a ring is formed from an endless sheet-metal strip, wherein the sheet-metal strip is cut to length on the circumference of the ring by laser cutting and the contacting edges of the sheet-metal strip are joined together by laser welding.
- laser welding a high energy input occurs on a small cross-section and thus only a small zone of molten material. There is only a small structural change. Furthermore, the welding tool is wear-free. When laser cutting is also a high energy input to a small cross section. In this case, however, the energy input is so high that the metal strip is separated.
- edge Due to the still small influence zone, which is about as large as the parting line, there are two edges with an exact cut and the production of the parting line runs burr-free. Another advantage is that the edge has no fracture surface, as is typically the case in punching. such Fracture surfaces usually run obliquely, so that during subsequent welding an aggregate is required. Since the edges separated by laser cutting do not have such oblique or rough fracture surfaces, it is possible here to join the contacting edges without aggregate by welding. It is also possible to remove a portion by laser cutting at one or each edge. This also achieves an accurate, unwinding-influenced, unwinding length with low rounding deviations. In the method according to the invention pretreated, for example, phosphated sheets can be used in an advantageous manner.
- This pretreatment is only insignificantly impaired by the method according to the invention, in particular by the laser cutting and the laser welding.
- the heat affected zone during laser cutting and laser welding is small, so that the pretreatment is only insignificantly impaired. This is particularly advantageous because a pre-treatment of the sheets is cheaper than a pretreatment of the finished support rings.
- the laser cutting and laser welding can be done by a single laser device.
- the cost of the device for producing the sealing rings can be reduced, since only one laser source is required here, wherein the laser light is deflected via an optical system for laser cutting and laser welding.
- the laser beam is adjusted by changing the focal length, for example by a movable optics, respectively for the separation or welding.
- the weld can be leveled in a subsequent step at least the outer circumference.
- the process is carried out so that at least the outer peripheral side along the weld results in a survey.
- This survey is leveled in a subsequent step.
- the Leveling is preferably carried out in two stages by cutting off, for example, by planing, broaching or grinding and subsequent smoothing rolls. By rolling the stresses caused by the forming in the structure are reduced by plastic forming.
- the ring can be reshaped by rolling. By rolling a large variety of shapes with a tool can be achieved.
- the known cup-shaped support rings can be produced. In this support rings but also different profiles, undercuts and depressions can be introduced.
- the circumferential edges of the ring can be profiled without cutting.
- the peripheral edges of rings, which are to be processed in sealing rings preferably have a chamfer, through which simplify the manufacture and also the assembly of the sealing ring. Such chamfers are often machined, produced for example by turning. However, a non-cutting process can be better integrated into the manufacturing process.
- the profiling of the edge is preferably carried out by rolling.
- the ring can be calibrated in an integrated process step.
- the calibration improves the dimensional accuracy of the rings. Since the outer diameter of a support ring is often also a sealing surface, the dimensional accuracy is particularly important because it affects the fit of the sealing ring in the bore to be sealed. Welding processes and other subsequent processing steps can cause dimensional changes, which are compensated by the subsequent calibration.
- the inventive method so support rings can be made in a wide variety of shapes for sealing rings.
- FIG. 1 to 4 show the manufacturing process of a support ring of a seal according to the invention.
- FIG. 5 shows a seal according to the invention.
- Figures 1 to 4 show the inventive method for producing a sealing ring 1.
- a sealing ring 1 for example, from a roll, first an endless metal strip 2 cut by laser cutting (Figure 1). The length of the metal strip 2 was chosen so that later a ring 3 is formed with undersize. Subsequently, a ring 3 is formed by rolling from the sheet metal strip 2 ( Figure 1). In a next step, the contacting edges 4, 5 of the formed into a ring 3 sheet metal strip 2 are firmly bonded together. For this purpose, the edges 4, 5 are butted together and welded together by laser welding with or without supplying an aggregate 9 cohesively (Figure 3).
- connection is produced in such a way that a bead 8 results along the weld seam 6 at least on the outer peripheral side (FIG. 4).
- This bead 8 is leveled in a downstream processing, which here by machining and then rolling done.
- the downstream processing can be done by deep drawing or by a machining process, such as turning, milling or grinding.
- the laser welding and the laser cutting is done by a single laser beam source.
- the ring 3 is deformed by rolling and profiled and the peripheral edges 7 are then also profiled by rollers without cutting, so that there is a chamfer.
- the ring 3, which has an undersize is widened for calibration by a device and thereby brought to the nominal dimension.
- Figure 5 shows a sealing ring 1 with a support ring 8.
- the support ring 8 is formed by a ring 3, which was prepared by the method described above.
- a dynamically sealing sealing lip 10 is vulcanized.
- a sheet 2 was used, which was pretreated with a phosphating to improve the adhesion of the elastomeric.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Manufacturing & Machinery (AREA)
- Laser Beam Processing (AREA)
- Gasket Seals (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Mechanical Sealing (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
- Sealing Devices (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200880101095A CN101765735A (zh) | 2007-08-01 | 2008-07-23 | 用于制造密封圈的方法 |
US12/670,968 US9816615B2 (en) | 2007-08-01 | 2008-07-23 | Method for the production of a sealing ring |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP07015098.2 | 2007-08-01 | ||
EP07015098A EP2020541B1 (de) | 2007-08-01 | 2007-08-01 | Verfahren zur Herstellung eines Dichtrings |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009015815A1 true WO2009015815A1 (de) | 2009-02-05 |
Family
ID=38752571
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2008/006042 WO2009015815A1 (de) | 2007-08-01 | 2008-07-23 | Verfahren zu herstellung eines dichtrings |
Country Status (6)
Country | Link |
---|---|
US (1) | US9816615B2 (de) |
EP (1) | EP2020541B1 (de) |
CN (1) | CN101765735A (de) |
AT (1) | ATE455264T1 (de) |
DE (1) | DE502007002627D1 (de) |
WO (1) | WO2009015815A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013203266A1 (de) * | 2013-02-27 | 2014-08-28 | Aktiebolaget Skf | Verfahren zur Montage eines Dichtungselements auf einem Wellenteil und Dichtungselement |
EP2721326A4 (de) * | 2011-06-14 | 2015-07-15 | Amsted Rail Co Inc | Verfahren zur herstellung einer wälzlagerdichtung |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007049925B4 (de) * | 2007-10-18 | 2012-10-31 | Federal-Mogul Sealing Systems Gmbh | Geschweißte Metalldichtung |
DE102009033135A1 (de) | 2009-07-15 | 2011-01-27 | Elringklinger Ag | Verfahren zum Herstellen von Profildichtringen |
DE102011001279A1 (de) | 2011-03-15 | 2012-09-20 | Elringklinger Ag | Metallisches balgartiges Dichtungselement und Verfahren zum Herstellen des Dichtelementes |
DE112011105631A5 (de) | 2010-03-19 | 2015-01-15 | Elringklinger Ag | Verfahren und Vorrichtung zur Herstellung von Profilringen |
DE102011015886A1 (de) | 2011-04-01 | 2012-10-04 | Carl Freudenberg Kg | Verfahren zur Herstellung eines magnetischen Encoderrings |
FR3025124B1 (fr) * | 2014-08-28 | 2016-09-30 | Snecma | Procede de fabrication de supports d'anneaux d'organe de turbomachine |
CN104460208A (zh) * | 2014-12-31 | 2015-03-25 | 合肥鑫晟光电科技有限公司 | 光源总成、成像装置以及成像方法 |
DE102015121459A1 (de) | 2015-12-09 | 2017-06-14 | Elringklinger Ag | Montagevorrichtung für einen profilierten Ring |
DE102015121811A1 (de) | 2015-12-15 | 2017-07-06 | Elringklinger Ag | Profilierter Ring und Herstellungsverfahren |
CN105666054B (zh) * | 2016-01-22 | 2018-05-01 | 江苏金通灵流体机械科技股份有限公司 | 一种迷宫密封组件加工方法及其卷制模具 |
DE102016103571A1 (de) * | 2016-02-29 | 2017-08-31 | Oetiker Schweiz Ag | Verfahren zum Herstellen eine geschweißten Rings |
CN107745529B (zh) * | 2017-10-17 | 2019-04-30 | 吴忠仪表有限责任公司 | O型圈切割粘接工装及其加工方法 |
CN109291115B (zh) * | 2018-09-10 | 2021-03-30 | 帝伯爱尔株式会社 | 密封环的接缝加工方法和接缝切割刀 |
DE102019205461A1 (de) * | 2019-04-16 | 2020-10-22 | BSH Hausgeräte GmbH | Verfahren zum Herstellen eines Hohlzylinder ähnlicher Körpers einer Trommel eines Haushaltsgeräts sowie für ein Haushaltsgerät |
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GB1369312A (en) * | 1971-10-28 | 1974-10-02 | Gen Motors Corp | Method of making annular channelled members |
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DE19755391A1 (de) * | 1997-12-12 | 1999-06-24 | Freudenberg Carl Fa | Verfahren zur Herstellung eines Dichtringes |
US6513219B1 (en) * | 1994-12-28 | 2003-02-04 | Valeo | Method for producing a ring collar, notably for a clutch mechanism in particular for a motor vehicle |
US6764079B1 (en) * | 2002-04-19 | 2004-07-20 | Dana Corporation | Valve seal assembly with straight-walled retainer |
WO2006075209A2 (en) * | 2005-01-13 | 2006-07-20 | Prima Industrie S.P.A. | Laser machine tool having a x-y sliding structure with mass balancing means |
EP1818581A1 (de) * | 2006-02-10 | 2007-08-15 | Carl Freudenberg KG | Verfahren zur Herstellung eines Dichtrings |
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-
2007
- 2007-08-01 EP EP07015098A patent/EP2020541B1/de not_active Revoked
- 2007-08-01 DE DE502007002627T patent/DE502007002627D1/de active Active
- 2007-08-01 AT AT07015098T patent/ATE455264T1/de active
-
2008
- 2008-07-23 US US12/670,968 patent/US9816615B2/en active Active
- 2008-07-23 CN CN200880101095A patent/CN101765735A/zh active Pending
- 2008-07-23 WO PCT/EP2008/006042 patent/WO2009015815A1/de active Application Filing
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GB1369312A (en) * | 1971-10-28 | 1974-10-02 | Gen Motors Corp | Method of making annular channelled members |
US3798728A (en) * | 1972-04-04 | 1974-03-26 | Sargent Industries | Method of manufacturing wheel trim |
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DE19755391A1 (de) * | 1997-12-12 | 1999-06-24 | Freudenberg Carl Fa | Verfahren zur Herstellung eines Dichtringes |
US6764079B1 (en) * | 2002-04-19 | 2004-07-20 | Dana Corporation | Valve seal assembly with straight-walled retainer |
WO2006075209A2 (en) * | 2005-01-13 | 2006-07-20 | Prima Industrie S.P.A. | Laser machine tool having a x-y sliding structure with mass balancing means |
EP1818581A1 (de) * | 2006-02-10 | 2007-08-15 | Carl Freudenberg KG | Verfahren zur Herstellung eines Dichtrings |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2721326A4 (de) * | 2011-06-14 | 2015-07-15 | Amsted Rail Co Inc | Verfahren zur herstellung einer wälzlagerdichtung |
DE102013203266A1 (de) * | 2013-02-27 | 2014-08-28 | Aktiebolaget Skf | Verfahren zur Montage eines Dichtungselements auf einem Wellenteil und Dichtungselement |
DE102013203266B4 (de) * | 2013-02-27 | 2014-11-27 | Aktiebolaget Skf | Verfahren zur Montage eines Dichtungselements auf einem Wellenteil und Dichtungselement |
Also Published As
Publication number | Publication date |
---|---|
EP2020541A1 (de) | 2009-02-04 |
US9816615B2 (en) | 2017-11-14 |
EP2020541B1 (de) | 2010-01-13 |
DE502007002627D1 (de) | 2010-03-04 |
CN101765735A (zh) | 2010-06-30 |
ATE455264T1 (de) | 2010-01-15 |
US20100187767A1 (en) | 2010-07-29 |
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