WO2016149774A1 - Procédé de fabrication d'une turbine métallique centrifuge et turbine centrifuge obtenue à l'aide dudit procédé - Google Patents

Procédé de fabrication d'une turbine métallique centrifuge et turbine centrifuge obtenue à l'aide dudit procédé Download PDF

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Publication number
WO2016149774A1
WO2016149774A1 PCT/BE2016/000014 BE2016000014W WO2016149774A1 WO 2016149774 A1 WO2016149774 A1 WO 2016149774A1 BE 2016000014 W BE2016000014 W BE 2016000014W WO 2016149774 A1 WO2016149774 A1 WO 2016149774A1
Authority
WO
WIPO (PCT)
Prior art keywords
impeller
blades
layer
layers
hub
Prior art date
Application number
PCT/BE2016/000014
Other languages
English (en)
Inventor
Aleksandr Pulnikov
Original Assignee
Atlas Copco Airpower, Naamloze Vennootschap
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
Priority claimed from BE2015/5774A external-priority patent/BE1023131B1/nl
Application filed by Atlas Copco Airpower, Naamloze Vennootschap filed Critical Atlas Copco Airpower, Naamloze Vennootschap
Publication of WO2016149774A1 publication Critical patent/WO2016149774A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B23P15/006—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass turbine wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
    • B22F10/60—Treatment of workpieces or articles after build-up
    • B22F10/66—Treatment of workpieces or articles after build-up by mechanical means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
    • B22F5/009—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of turbine components other than turbine blades
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
    • B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
    • B22F7/08—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools with one or more parts not made from powder
    • 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
    • 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
    • F04D29/30—Vanes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
    • B22F10/20—Direct sintering or melting
    • B22F10/25—Direct deposition of metal particles, e.g. direct metal deposition [DMD] or laser engineered net shaping [LENS]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
    • B22F10/30—Process control
    • B22F10/32—Process control of the atmosphere, e.g. composition or pressure in a building chamber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
    • B22F10/60—Treatment of workpieces or articles after build-up
    • B22F10/64—Treatment of workpieces or articles after build-up by thermal means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
    • B22F2005/004—Article comprising helical form elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
    • B22F2998/10—Processes characterised by the sequence of their steps
    • 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
    • F01D5/043—Blade-carrying members, e.g. rotors for radial-flow machines or engines of the axial inlet- radial outlet, or vice versa, type
    • 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
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

Definitions

  • the present invention relates to a method for manufacturing a centrifugal impeller.
  • the centrifugal impeller can be used in a centrifugal machine such as a turbocompressor , turbine or similar.
  • a centrifugal compressor element as used in turbocompressors consists of an impeller that is rotatably affixed in a housing with an axial inlet and a radial outlet, whereby the impeller is formed by a type of solid trumpet-shaped hub to bend the gas drawn in at the inlet from the axial direction to the radial direction at the outlet, and by blades that are affixed on the hub and which together with the hub and the housing define narrowing channels through which the gas is guided to compress it.
  • the impeller is provided with a central borehole to be able to attach the impeller to a drive shaft.
  • Centrifugal impellers are conventionally manufactured by making use of subtractive manufacturing methods, such as turning and milling.
  • the depth of the channels is typically determined by the ⁇ hub surface' .
  • the blades are preferably made as thin as possible.
  • the material to be added in the form of blades would be around 10 to 20 times less than the material that has to be removed when a subtractive manufacturing method is used.
  • the height of the blades in a centrifugal impeller is not constant.
  • the inlet diameter is typically smaller and the height of the blades at the inlet is greater compared to the height of the blades at the outlet. This means that the chosen method for affixing the blades to the hub surface must leave sufficient room to be able to access the construction location.
  • WO 2014/128169 describes a method for manufacturing an impeller making use of separate segments. This document describes these segments being welded to one another against a hub or attaching the segments to the hub by means of a mechanical fastener. The aforementioned segments are made by means of an additive manufacturing method.
  • a great disadvantage of this approach is that there is no continuous connection between the segments and the hub such as with a subtractive manufacturing method, such that they are unsuitable for impellers that are used in machines with a high speed.
  • the purpose of the present invention is to provide a solution to at least one of the aforementioned and other disadvantages.
  • the object of the present invention is a method for manufacturing a centrifugal impeller, whereby this impeller comprises a base with a hub, whereby the impeller further comprises a number of protruding blades that are affixed on the surface of the hub, whereby the method comprises the following steps:
  • the aforementioned metal impeller base comprises a trumpet- shape whose diameter increases in the direction from one end to the other end, whereby the hub is provided with a central borehole to be able to attach the impeller to a drive shaft.
  • the outer surface of the hub is called the hub surface .
  • the blades are affixed on the aforementioned hub base, more specifically on the hub surface.
  • the additive manufacturing method is 'laser cladding' for example.
  • material to be added is supplied to the melt zone, i.e. the zone where material is desired to be added.
  • the material can be applied in the form of a powder or a wire or a combination of both.
  • the melt zone is heated locally, such that the powder and/or wire and the section of the underlying material melt.
  • the invention also concerns a centrifugal impeller manufactured according to a method according to the invention and a compressor or expander provided with such a centrifugal impeller.
  • figure 1 schematically shows a conventional method for manufacturing a centrifugal impeller
  • figure 2 schematically shows a method according to the invention for manufacturing a centrifugal impeller
  • figures 3 and 4 show variants of a method according to the invention.
  • Figure 1 schematically shows a conventional method for manufacturing a centrifugal impeller 1.
  • channels 5 are milled in the workpiece 2 to form the blades 4 by removing material .
  • the bases of the channels are formed by the hub surface 6, this is the surface of the impeller 1 on which the blades 4 are attached.
  • this starts with a workpiece that is defined by the hub surface 6.
  • a first step of the method thus consists of providing an impeller base 7 with a hub 8 with a hub surface 6, as shown in figure 2A.
  • This hub 8 is provided with a central borehole 9 in order to be able to attach the impeller 1 to a drive shaft.
  • This impeller base 7 is made of metal.
  • the impeller base 7 or the hub 8 can be manufactured by turning the workpiece down to the hub surface 6, by casting a workpiece or by another manufacturing method that yields the desired quality of the hub surface 6.
  • the impeller base 7 or the hub 8 can also be manufactured using an additive manufacturing method.
  • the metal used for the layers 10 is compatible with the metal of the impeller base and thus the hub surface.
  • ⁇ possible additive manufacturing method is laser cladding.
  • composition of the metal supplied can be different to the composition of the metal of the hub surface 6.
  • the material that is supplied to the melt zone can be in the form of a powder or a wire or a combination of powder and wire.
  • the heat source use can be made of a laser or a plasma torch. But any heat source that can deliver heat to a localised point is suitable.
  • the hub surface 6 acts as a substrate to which this first layer 10 is attached.
  • the underlying layer 10 acts as a substrate to melt the next layer 10 thereon.
  • the supply of this powder can be interrupted, so that it can be worked in discrete steps so that material can be built up at discrete locations .
  • the metal used for the layer-by-layer construction of the blades 4 can have a different composition per layer 10.
  • composition of the powder of the blade 4 can be changed or varied during the construction of the blade 4. It is also possible that the composition does not vary over the entire blade 4, but for example the composition of the powder is only changed at the location of the edge 11 of the blades 4 at the inlet side 12, where the blade 4 is exposed to erosion due to incoming dust particles and water droplets, for example by adding carbide particles.
  • the powder can be supplied by means of one or more nozzles that are affixed around the laser source for example, and which inject the powder at the desired location on the surface.
  • the composition of the powder can be adjusted, by providing each nozzle with a different type of powder and adjusting the flow rate of each nozzle.
  • the substrate i.e. the hub surface 6 or a previous layer 10
  • the substrate is heated or preheated for the application of a subsequent layer 10.
  • An additive manufacturing method is preferably implemented in a protected atmosphere, for example an inert atmosphere or in a vacuum, in order to prevent excessive oxidation of the metal added.
  • FIG. 2 shows a possible method, whereby each layer 10 extends in a direction parallel to the hub surface 6. This can clearly be seen in figures 2B, 2C.
  • all first layers 10 of each blade can be first applied, after which the second layer 10 is applied on each of these first layers 10.
  • the height of the blade 4 can be varied along the length. This means that one end 10a of the layer 10 is situated at the edge of the hub surface 6 at the inlet side 12, while the other end 10b of the layer 10 is either situated at the edge of the hub surface 6 at the outlet side 13 or at a location between the inlet side 12 and the outlet side 13, depending on the height at which the layer 10 concerned is located.
  • the application direction of the layer 10 can be changed from: from the inlet side 12 to the outlet side 13, to: from the outlet side 13 to the inlet side 12. This will reduce the time needed to pass from the one blade 4 to the next. It is of course also possible to preserve the application direction and for example to apply each layer 10 from the inlet side 12 to the outlet side 13, or vice versa.
  • two or three layers 10 could be applied for each blade 4 before going to the next blade 4.
  • one or more additional layers could still be applied to smooth out the stepped transitions of the successive layers 10. It is also possible for the stepped transitions to be melted again, for example with a laser without powder being supplied, so that a smooth transition is obtained in this wa .
  • the sides of the blades 4 can also be melted again to reduce the surface roughness.
  • this edge 11 of the blades 4 is exposed to incoming dust particles and water particles such that it is susceptible to erosion.
  • the resistance to erosion can be increased.
  • the centrifugal impeller 1 can be subject to a heat treatment.
  • a heat treatment such as tempering, hardening, stress relieving or annealing
  • any internal stresses in the blade 4 that occur during the construction can be reduced.
  • the method can optionally comprise the step of working the edges and sides of the blades 4 by means of machining.
  • the top edge of the blade 4 i.e. the edge that coincides with the shroud surface 3 and hence is also called the shroud line', can be worked by means of turning or milling.
  • the sides of the blades 4 are preferably worked by means of milling.
  • the impeller 1 thus formed can be used in a compressor or expander. As the stresses in the blades 4 are distributed and a continuous joint is formed between the hub surface 6 and the blades 4, the impeller 1 can also be used in a compressor or expander that has a high speed.
  • the method was focused on the use of (metal) powder for laser cladding.
  • This has the advantage that the material supply can be interrupted.
  • a disadvantage is that laser cladding must be done in an inert atmosphere.
  • the process will also proceed more quickly when use is made of a wire. In this case it is not possible, or very difficult, to interrupt the material supply.
  • continuous layers 14 will be used, i.e. a first uninterrupted layer 14 for all blades 4, whereby a subsequent uninterrupted layer 14 can be applied on this first layer 1 .
  • Figure 3 shows an example of such a method, where the first continuous uninterrupted layer 14 is applied to the hub surface 6 of an impeller base 7.
  • Figure 4 shows another variant of a method according to the invention.
  • the successive layers 10 extend in a direction that deviates from the direction of the hub surface 6.
  • the layers 10 are built up from the outlet side 13 of the impeller 1 to the inlet side 12.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Composite Materials (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Powder Metallurgy (AREA)

Abstract

L'invention concerne un procédé de fabrication d'une turbine centrifuge (1), moyennant quoi ladite turbine (1) comprend une base (7) dotée d'un moyeu (8), moyennant quoi la turbine (1) comprend en outre un certain nombre d'aubes faisant saillie (4) qui sont fixées sur la surface (6) du moyeu (8), caractérisé en ce que le procédé comprend les étapes suivantes: - la fourniture d'une base de turbine métallique (7) présentant une surface de moyeu (6); - la construction couche-par-couche des aubes (4) sur la surface de moyeu (6) de la base de turbine métallique (7) avec des couches (10) d'un métal utilisant un procédé de fabrication additive, moyennant quoi le métal utilisé pour les couches (10) est compatible avec le métal de la base de turbine métallique (7).
PCT/BE2016/000014 2015-03-26 2016-03-17 Procédé de fabrication d'une turbine métallique centrifuge et turbine centrifuge obtenue à l'aide dudit procédé WO2016149774A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US201562138589P 2015-03-26 2015-03-26
US62/138,589 2015-03-26
BE2015/5774 2015-11-27
BE2015/5774A BE1023131B1 (nl) 2015-03-26 2015-11-27 Werkwijze voor het vervaardigen van een centrifugaal schoepenrad en centrifugaal schoepenrad bekomen met zulke werkzijze.

Publications (1)

Publication Number Publication Date
WO2016149774A1 true WO2016149774A1 (fr) 2016-09-29

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Country Link
WO (1) WO2016149774A1 (fr)

Cited By (9)

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CN107186445A (zh) * 2017-06-30 2017-09-22 马鞍山方圆动力科技有限公司 一种叶轮加工工艺
WO2018039720A1 (fr) * 2016-08-30 2018-03-08 Weir Group Ip Limited Formation d'une pièce rotative
WO2019107506A1 (fr) 2017-11-29 2019-06-06 株式会社神戸製鋼所 Procédé de conception d'un article moulé stratifié, procédé de production, dispositif de production et programme
WO2019176759A1 (fr) 2018-03-16 2019-09-19 株式会社神戸製鋼所 Procédé de production d'un article façonné et article façonné
WO2019197664A1 (fr) * 2018-04-12 2019-10-17 Sms Group Gmbh Bague lubrifiante pour un expanseur mécanique destiné à étalonner de gros tubes
WO2019220867A1 (fr) 2018-05-17 2019-11-21 株式会社神戸製鋼所 Procédé de production et appareil de production destinés à un produit de fabrication additive, et programme
JP2019534794A (ja) * 2016-10-27 2019-12-05 マン・エナジー・ソリューションズ・エスイー ターボ機械インペラーを製造するための方法
CN116921692A (zh) * 2023-07-26 2023-10-24 烟台龙港泵业股份有限公司 一种离心泵叶轮制造工艺
WO2024041754A1 (fr) * 2022-08-24 2024-02-29 Cryostar Sas Procédé de fabrication d'une roue à aubes et roue à aubes

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WO2014184368A1 (fr) * 2013-05-17 2014-11-20 Nuovo Pignone Srl Roue à tuyaux circulaires à balayage arrière
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US3159106A (en) * 1962-03-21 1964-12-01 Allis Chalmers Mfg Co Impeller and method of making same
CN101694582A (zh) * 2001-11-17 2010-04-14 株式会社Insstek 实时监测和控制淀积高度的方法和系统
US20060140767A1 (en) * 2004-12-29 2006-06-29 Caterpillar Inc. Free-form welded power system component
WO2013124314A1 (fr) * 2012-02-23 2013-08-29 Nuovo Pignone Srl Fabrication d'hélice de turbine
EP2669042A1 (fr) * 2012-05-30 2013-12-04 Sulzer Markets and Technology AG Procédé de fabrication d'une pièce usinée à l'aide d'un dispositif de découpe rapide
US20140169971A1 (en) * 2012-12-18 2014-06-19 Hamilton Sundstrand Corporation Additively manufactured impeller
WO2014128169A1 (fr) 2013-02-20 2014-08-28 Nuovo Pignone Srl Procédé de fabrication d'un impulseur à partir de segments de secteur
WO2014184368A1 (fr) * 2013-05-17 2014-11-20 Nuovo Pignone Srl Roue à tuyaux circulaires à balayage arrière
US20150044048A1 (en) * 2013-08-07 2015-02-12 Samsung Techwin Co., Ltd. Impeller assembly of fluid rotary machine and manufacturing method thereof

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018039720A1 (fr) * 2016-08-30 2018-03-08 Weir Group Ip Limited Formation d'une pièce rotative
JP2019534794A (ja) * 2016-10-27 2019-12-05 マン・エナジー・ソリューションズ・エスイー ターボ機械インペラーを製造するための方法
US10946487B2 (en) 2016-10-27 2021-03-16 Man Energy Solutions Se Method for producing a turbomachine impeller
CN107186445A (zh) * 2017-06-30 2017-09-22 马鞍山方圆动力科技有限公司 一种叶轮加工工艺
WO2019107506A1 (fr) 2017-11-29 2019-06-06 株式会社神戸製鋼所 Procédé de conception d'un article moulé stratifié, procédé de production, dispositif de production et programme
US11772194B2 (en) 2017-11-29 2023-10-03 Kobe Steel, Ltd. Method for designing laminate molded article, production method, production device, and program
CN111417486A (zh) * 2017-11-29 2020-07-14 株式会社神户制钢所 层叠造型物的设计方法、制造方法、制造装置、以及程序
EP3766619A4 (fr) * 2018-03-16 2021-12-08 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) Procédé de production d'un article façonné et article façonné
WO2019176759A1 (fr) 2018-03-16 2019-09-19 株式会社神戸製鋼所 Procédé de production d'un article façonné et article façonné
US11772196B2 (en) 2018-03-16 2023-10-03 Kobe Steel, Ltd. Method for producing shaped article and shaped article
CN111867769A (zh) * 2018-03-16 2020-10-30 株式会社神户制钢所 造型物的制造方法以及造型物
US20200376601A1 (en) * 2018-03-16 2020-12-03 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) Method for producing shaped article and shaped article
CN112041100A (zh) * 2018-04-12 2020-12-04 Sms集团有限公司 用于校准大口径管的机械式扩径机的润滑环
US11396036B2 (en) 2018-04-12 2022-07-26 Sms Group Gmbh Lubrication ring for a mechanical expander for sizing large pipes
WO2019197664A1 (fr) * 2018-04-12 2019-10-17 Sms Group Gmbh Bague lubrifiante pour un expanseur mécanique destiné à étalonner de gros tubes
US11415962B2 (en) 2018-05-17 2022-08-16 Kobe Steel, Ltd. Additively-manufactured object by forming beads along a formation projected line of beads
WO2019220867A1 (fr) 2018-05-17 2019-11-21 株式会社神戸製鋼所 Procédé de production et appareil de production destinés à un produit de fabrication additive, et programme
WO2024041754A1 (fr) * 2022-08-24 2024-02-29 Cryostar Sas Procédé de fabrication d'une roue à aubes et roue à aubes
CN116921692A (zh) * 2023-07-26 2023-10-24 烟台龙港泵业股份有限公司 一种离心泵叶轮制造工艺
CN116921692B (zh) * 2023-07-26 2024-03-26 烟台龙港泵业股份有限公司 一种离心泵叶轮制造工艺

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