EP3081669A1 - Procede de fabrication de roues porteuses coiffees - Google Patents

Procede de fabrication de roues porteuses coiffees Download PDF

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Publication number
EP3081669A1
EP3081669A1 EP16163083.5A EP16163083A EP3081669A1 EP 3081669 A1 EP3081669 A1 EP 3081669A1 EP 16163083 A EP16163083 A EP 16163083A EP 3081669 A1 EP3081669 A1 EP 3081669A1
Authority
EP
European Patent Office
Prior art keywords
support structure
impeller
capped
open impeller
blades
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
EP16163083.5A
Other languages
German (de)
English (en)
Other versions
EP3081669B1 (fr
Inventor
Rudolf Derntl
Peter Scholz
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.)
HERMLE MASCHINENBAU GmbH
Original Assignee
HERMLE MASCHINENBAU GmbH
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 HERMLE MASCHINENBAU GmbH filed Critical HERMLE MASCHINENBAU GmbH
Publication of EP3081669A1 publication Critical patent/EP3081669A1/fr
Application granted granted Critical
Publication of EP3081669B1 publication Critical patent/EP3081669B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C24/00—Coating starting from inorganic powder
    • C23C24/02—Coating starting from inorganic powder by application of pressure only
    • C23C24/04—Impact or kinetic deposition of particles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/02—Blade-carrying members, e.g. rotors
    • F01D5/04—Blade-carrying members, e.g. rotors for radial-flow machines or engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/02—Selection of particular materials
    • F04D29/023—Selection of particular materials especially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/02—Selection of particular materials
    • F04D29/026—Selection of particular materials especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/18—Rotors
    • F04D29/22—Rotors specially for centrifugal pumps
    • F04D29/2205—Conventional flow pattern
    • F04D29/2222—Construction and assembly
    • F04D29/2227—Construction and assembly for special materials
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/284—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for compressors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2230/00—Manufacture
    • F05D2230/10—Manufacture by removing material
    • F05D2230/11—Manufacture by removing material by electrochemical methods
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2230/00—Manufacture
    • F05D2230/10—Manufacture by removing material
    • F05D2230/18—Manufacturing tolerances
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2230/00—Manufacture
    • F05D2230/20—Manufacture essentially without removing material
    • F05D2230/22—Manufacture essentially without removing material by sintering
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2230/00—Manufacture
    • F05D2230/30—Manufacture with deposition of material
    • F05D2230/31—Layer deposition
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2230/00—Manufacture
    • F05D2230/30—Manufacture with deposition of material
    • F05D2230/31—Layer deposition
    • F05D2230/311—Layer deposition by torch or flame spraying

Definitions

  • the present application relates to a method for the production of capped wheels, in particular of capped impellers or blisks.
  • Impellers are used in turbomachinery to compress fluids by mechanical work or to perform mechanical work by relaxing fluids.
  • Impellers can be made open, which means that the blades rotate or close tangentially to a stationary casing, with the blades being fixedly connected to a casing. Closed wheels have a higher efficiency compared to open wheels, since here the frictional resistance of the fluid to the stationary housing is lower.
  • the flow channels can be produced for example by a casting process.
  • no rework is possible in undercut areas.
  • With thin-walled structures dimensional limitations are also limited.
  • EP 2 177 298 A1 For example, a machining strategy is described which, using long tools, generates spark erosion or electrochemical ablation starting apertures. Here, however, are set by the geometry of the cutting tool limits in the production of undercut areas.
  • Another joining method of the wheels is the soldering, whereby the strong distortion of the welding can be prevented.
  • the solder joint is always a potential vulnerability.
  • the object of the invention is to provide a method for the production of capped wheels, which has a low production time and provides a defined surface quality in the flow channel. Furthermore, production-related weak points, such as in particular welds or solder joints, should be avoided.
  • a conventional open impeller is filled with a support structure, so that an edge region of the blades is flush with the support structure.
  • the resulting surface serves as a substrate for an additive manufacturing process.
  • the short production time and high surface quality in the machining production of open impellers or blisks are combined with the design possibilities of a generative manufacturing process.
  • production-related weaknesses such as welds or solder joints are eliminated.
  • the application of the support structure by means of cold gas spraying. In this case, metallic particles are accelerated with a carrier gas to supersonic speed by the compressed carrier gas, in particular by means of a Laval nozzle, is relaxed and thereby reaches high gas velocities.
  • the surface which serves as a substrate for the generative manufacturing process, even with a production by means of cold gas spraying has an excellent quality for performing the generative manufacturing process.
  • the use of the cold gas spraying on the one hand a method with little effort available, which is very component gentle due to low thermal stresses, on the other hand, the implementation of generative manufacturing process can be performed directly on the cold gas injected support structure.
  • an additional, complex step of the surface treatment of the support structure is avoided.
  • generative manufacturing process refers here to a primary molding of products of informal material, such as in particular liquids or powders, or form neutral, in particular band or wire-shaped material by means of chemical and / or physical processes.
  • the method according to the invention advantageously comprises the following steps. These are executed in particular in the order shown.
  • an open impeller is provided.
  • the impeller is manufactured using conventional manufacturing methods.
  • a support structure is applied to the impeller to produce the described surface.
  • a step is additionally carried out by the support structure is removed.
  • the support structure is removed in particular by corrosion.
  • a capped impeller is present, in particular, no production-related weaknesses are present.
  • the surface is machined before carrying out the generative production process.
  • the outer contour of blades of the open impeller is machined. The inventive method thus allows in a simple manner to change the geometry of the open impeller before applying the cover layer.
  • the open impeller and / or the Deckbericht are advantageously made of metallic materials.
  • the method according to the invention can also be applied to other materials, in particular plastic, so that the open running wheel and / or the cover layer can preferably also be made of these other materials.
  • the generative process is cold gas spraying.
  • both the application of the support structure and the application of the cover layer by means of the same method, namely the cold gas spraying, are carried out particularly advantageously.
  • the material to be used is different, so that the material of the support structure differs from the material of the cover layer.
  • a water-corrodible material is used as a support structure.
  • thermally sprayed magnesium with steel forms an easily corrodible composite material. This can be quickly washed out with water and is therefore less problematic than the use of nitric acid, and less expensive than abrasive water jets.
  • An edge region of the blades of the open impeller is advantageously shaped such that a positive force transmission of the cover layer is ensured to the blades.
  • the edge regions of the blades are advantageously provided with a convex contour.
  • the capped impeller is a capped impeller or a capped blisk.
  • the open impeller is produced by machining.
  • the aforementioned step of providing the open impeller is such as to provide a machined open impeller.
  • this step is replaced by the machining production of an open impeller.
  • Fig. 1 shows a first step of the method for producing capped wheels 1 according to a preferred embodiment of the invention.
  • an open impeller 2 is provided.
  • the open impeller 2 is preferably made by machining and has a plurality of blades 3.
  • the open impeller 2 is an impeller.
  • a capped impeller is to be produced.
  • a support structure 5 is applied to the open impeller 2. By applying the support structure 5 gaps between the blades 3 are filled. This results in a surface 6, wherein a surface of the support structure 5 is flush with the outer contours of the blades 3.
  • the outer contours of the blades 3 are provided with a convex contour, so that a cover layer 4 (see. Fig. 3 ) is positively connected to the blades 3.
  • the application of the support structure 5 by means of cold gas spraying eliminates a complicated production of containers that are needed in particular for metallic powders. Compared with a hot isostatic pressing the application of the support structure according to the preferred embodiment of the invention is very simple, inexpensive and time-saving possible. In addition, the cold gas spraying allows to reduce thermal stresses and thus to minimize distortion of the open impeller 2.
  • the surface 6 may be before in Fig. 3 shown next step of the process to be machined.
  • an advantage of the cold gas spraying is that the surface finish of the support structure 5 for performing the next step is sufficiently high so that the machining process is not necessarily required.
  • the machining process of the surface 6 allows the outer contour of the open impeller 2 and thus the later capped impeller 1 to change.
  • a third step of the method is shown, wherein in this third step, a generative manufacturing process is performed. Due to the generative manufacturing process, a cover layer 4 is applied to the surface 6. The cover layer 4 is applied to the surface 6 in particular by cold gas spraying.
  • the method is identical to the application of the support structure 5, wherein only the material to be used is different.
  • the support structure 5 therefore differs from the cover layer 4.
  • the cover layer 4 is connected to the blades 3, wherein this connection can be cohesive or positive nature.
  • Fig. 4 finally shows the completed capped impeller 1.
  • a fourth step of the method is performed, in which the support structure 5 is removed.
  • the support structure 5 is in particular made of a material that is easily corrodible.
  • the support structure 5 is made of a material which is corrodible with water.
  • the support structure 5 can be washed out very easily with water.
  • thermally sprayed magnesium with steel is known because both materials give a readily corrodible composite material.
  • the last step of the inventive method according to the preferred embodiment is very simple and time-saving feasible.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP16163083.5A 2015-04-17 2016-03-31 Procede de fabrication de roues porteuses coiffees Not-in-force EP3081669B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102015207017.4A DE102015207017B4 (de) 2015-04-17 2015-04-17 Verfahren zur Herstellung von gedeckelten Laufrädern

Publications (2)

Publication Number Publication Date
EP3081669A1 true EP3081669A1 (fr) 2016-10-19
EP3081669B1 EP3081669B1 (fr) 2018-08-29

Family

ID=55642334

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16163083.5A Not-in-force EP3081669B1 (fr) 2015-04-17 2016-03-31 Procede de fabrication de roues porteuses coiffees

Country Status (2)

Country Link
EP (1) EP3081669B1 (fr)
DE (1) DE102015207017B4 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107755987A (zh) * 2017-11-24 2018-03-06 中国航发沈阳黎明航空发动机有限责任公司 一种航空发动机高压压气机整流器的加工工艺方法
CN110732846A (zh) * 2019-10-26 2020-01-31 浙江上风高科专风实业有限公司 一种离心风机生产优化方法
IT201900007758A1 (it) * 2019-05-31 2020-12-01 Nuovo Pignone Tecnologie Srl Anello di girante rinforzato tramite deposizione a freddo
EP4001657A1 (fr) * 2020-11-24 2022-05-25 Nuovo Pignone Technologie S.r.l. Carénage de roue renforcé par pulvérisation à froid
WO2024041754A1 (fr) * 2022-08-24 2024-02-29 Cryostar Sas Procédé de fabrication d'une roue à aubes et roue à aubes

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017209229B4 (de) 2017-05-31 2020-07-16 Hermle Maschinenbau Gmbh Verfahren zur Herstellung eines Bauteils und Zwischenprodukt in der Herstellung eines Bauteils

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090110556A1 (en) * 2007-10-31 2009-04-30 David Brian Jahnz Process of making a shrouded impeller
EP2177298A1 (fr) * 2008-10-20 2010-04-21 Sulzer Markets and Technology AG Procédé de fabrication pour roues porteuses fermées
DE102010048336A1 (de) * 2010-10-13 2012-04-19 Mtu Aero Engines Gmbh Bauteil und Verfahren zum Ausbilden, Reparieren und/oder Aufbauen eines derartigen Bauteils
JP2013224703A (ja) * 2012-04-23 2013-10-31 Nissan Motor Co Ltd トルクコンバータ格納容器

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006049216A1 (de) * 2006-10-18 2008-04-24 Mtu Aero Engines Gmbh Hochdruckturbinen-Rotor und Verfahren zur Herstellung eines Hochdruckturbinen-Rotors
WO2009058836A1 (fr) * 2007-10-29 2009-05-07 Hormel Foods Corporation Emballage de produits carnés avec atmosphères modifiées
US20140169971A1 (en) 2012-12-18 2014-06-19 Hamilton Sundstrand Corporation Additively manufactured impeller
DE102014012480B4 (de) * 2014-08-27 2016-06-09 Rosswag Gmbh Herstellverfahren für eine Beschaufelung einer Strömungsmaschine, Beschaufelung einer Strömungsmaschine und Laufrad

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090110556A1 (en) * 2007-10-31 2009-04-30 David Brian Jahnz Process of making a shrouded impeller
EP2177298A1 (fr) * 2008-10-20 2010-04-21 Sulzer Markets and Technology AG Procédé de fabrication pour roues porteuses fermées
DE102010048336A1 (de) * 2010-10-13 2012-04-19 Mtu Aero Engines Gmbh Bauteil und Verfahren zum Ausbilden, Reparieren und/oder Aufbauen eines derartigen Bauteils
JP2013224703A (ja) * 2012-04-23 2013-10-31 Nissan Motor Co Ltd トルクコンバータ格納容器

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107755987A (zh) * 2017-11-24 2018-03-06 中国航发沈阳黎明航空发动机有限责任公司 一种航空发动机高压压气机整流器的加工工艺方法
IT201900007758A1 (it) * 2019-05-31 2020-12-01 Nuovo Pignone Tecnologie Srl Anello di girante rinforzato tramite deposizione a freddo
CN110732846A (zh) * 2019-10-26 2020-01-31 浙江上风高科专风实业有限公司 一种离心风机生产优化方法
EP4001657A1 (fr) * 2020-11-24 2022-05-25 Nuovo Pignone Technologie S.r.l. Carénage de roue renforcé par pulvérisation à froid
WO2024041754A1 (fr) * 2022-08-24 2024-02-29 Cryostar Sas Procédé de fabrication d'une roue à aubes et roue à aubes

Also Published As

Publication number Publication date
DE102015207017B4 (de) 2017-04-27
EP3081669B1 (fr) 2018-08-29
DE102015207017A1 (de) 2016-10-20

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