EP3437768A1 - Pressage isostatique à chaud de poudre - Google Patents

Pressage isostatique à chaud de poudre Download PDF

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Publication number
EP3437768A1
EP3437768A1 EP17184844.3A EP17184844A EP3437768A1 EP 3437768 A1 EP3437768 A1 EP 3437768A1 EP 17184844 A EP17184844 A EP 17184844A EP 3437768 A1 EP3437768 A1 EP 3437768A1
Authority
EP
European Patent Office
Prior art keywords
hip
skin
metal powder
metal
powder
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
EP17184844.3A
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German (de)
English (en)
Inventor
designation of the inventor has not yet been filed The
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.)
BAE Systems PLC
Original Assignee
BAE Systems PLC
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 BAE Systems PLC filed Critical BAE Systems PLC
Priority to EP17184844.3A priority Critical patent/EP3437768A1/fr
Priority to PCT/GB2018/052215 priority patent/WO2019025807A1/fr
Priority to EP18749482.8A priority patent/EP3661679A1/fr
Priority to US16/634,916 priority patent/US11351606B2/en
Priority to JP2020506191A priority patent/JP7005744B2/ja
Priority to GB1812601.1A priority patent/GB2565651B/en
Publication of EP3437768A1 publication Critical patent/EP3437768A1/fr
Priority to SA520411205A priority patent/SA520411205B1/ar
Ceased legal-status Critical Current

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Classifications

    • 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
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/12—Both compacting and sintering
    • B22F3/1208—Containers or coating used therefor
    • B22F3/1216—Container composition
    • 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
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/12—Both compacting and sintering
    • B22F3/14—Both compacting and sintering simultaneously
    • B22F3/15—Hot isostatic pressing
    • 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
    • B22F5/007—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of moulds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/001—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a flexible element, e.g. diaphragm, urged by fluid pressure; Isostatic presses
    • 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
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/12—Both compacting and sintering
    • B22F3/14—Both compacting and sintering simultaneously
    • B22F3/15—Hot isostatic pressing
    • B22F2003/153—Hot isostatic pressing apparatus specific to HIP
    • 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
    • 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
    • B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D2519/00004—Details relating to pallets
    • B65D2519/00258—Overall construction
    • B65D2519/00313—Overall construction of the base surface
    • B65D2519/00328—Overall construction of the base surface shape of the contact surface of the base
    • B65D2519/00333—Overall construction of the base surface shape of the contact surface of the base contact surface having a stringer-like shape
    • 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
    • F05D2230/23—Manufacture essentially without removing material by permanently joining parts together
    • F05D2230/232—Manufacture essentially without removing material by permanently joining parts together by welding
    • 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
    • F05D2230/40—Heat treatment
    • F05D2230/42—Heat treatment by hot isostatic pressing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
    • F21W2107/30—Use or application of lighting devices on or in particular types of vehicles for aircraft

Definitions

  • the present disclosure relates to the manufacture of parts using Hot Isostatic Pressing, and in particular relates to the formation of hollow section parts by powder Hot Isostatic Pressing (HIP).
  • Hot Isostatic Pressing HIP
  • metal powder is compacted using heat and pressure into a solid metal component.
  • the powder is placed into a container, known as a can, which is shaped according to the desired component's shape.
  • the can containing the powder is evacuated to remove any gaseous elements and then sealed and held at a high pressure and temperature.
  • the powder particles fuse and diffusion bond into a solid mass producing a component having an external shape defined by the internal shape of the can.
  • steel cans are often used, when using titanium powder, and these can be removed from the titanium part, after cooling, by acid etching to provide a clean part.
  • the mismatched thermal expansion coefficients of titanium and steel present problems when trying to form complex parts using for example titanium powder and a steel can. These problems could be encountered for all metals with mismatched thermal expansion coefficients.
  • Hollow-section parts are also extremely hard to manufacture using conventional powder HIP processes due to difficulties in forming moulds and removing can material from the internal regions.
  • an apparatus for forming a unitary component (a part) using powder Hot Isostatic Pressing comprising a skin component formed of a metal sheet having a first side and a second side; and a HIP can formed of metal and having a first side (for example, an outer part) and a second side (for example, an inner part), the second side of the HIP can being attached to the first side of the skin component, the HIP can defining a sealed volume and comprising a filling means to fill the sealed volume with metal powder; wherein the skin and HIP can are arranged to form a unitary component upon application of a HIP process.
  • can refers to a container preferably shaped (and thus having a geometry) corresponding to the desired component's shape.
  • a hollow space may be formed between a portion of the second side of the HIP can and a portion of the first side of the skin component, and the apparatus is provided with a vent into the hollow space to allow pressure applied during the HIP process to be communicated into the hollow space.
  • the HIP can may be welded to the skin.
  • the HIP can may be welded to the skin using electron beam welding.
  • the skin may form part of the wall of the HIP can to define the sealed volume.
  • the filling means may be sealable to prevent gas communication between the sealed volume and the exterior of the HIP can during HIP processing.
  • the skin and HIP can be formed from metals with substantially the same thermal expansion properties.
  • substantially the same thermal expansion properties may mean that the skin and HIP can are made of metals which have the same thermal expansion coefficient (TEC) or have a TEC that is similar to each other (for example, the differential TEC may be up to about ⁇ 5, 10, 15%, preferably no more than about ⁇ 15%).
  • TEC thermal expansion coefficient
  • the skin and HIP can may be formed from the same metal.
  • the skin and HIP can be formed from the same metal, wherein the same metal is selected from the group consisting of nickel, cobalt, titanium, iron, aluminium and alloys thereof and combinations thereof.
  • the same metal is selected from the group consisting of nickel, cobalt, titanium, iron, aluminium and alloys thereof and combinations thereof.
  • a steel, a superalloy or a titanium alloy for example, a steel, a superalloy or a titanium alloy.
  • the skin and HIP can be formed from an alpha-beta titanium alloy.
  • the skin and HIP can be formed from a titanium/aluminum/vanadium alloy such as a Ti-6Al-4V alloy or SP-700 (Ti-4.5AI-3V-2Mo-2Fe).
  • the HIP can may be filled with metal powder.
  • the HIP can may be filled with metal powder of the substantially the same composition as the metal of the HIP can and/or skin.
  • the HIP can may be filled with metal powder which has substantially the same thermal expansion coefficient as the HIP can and/or skin.
  • substantially the same thermal expansion properties may mean the same thermal expansion coefficient (TEC) or a similar TEC (for example, the differential TEC may be up to about ⁇ 5, 10, 15%, preferably up to about ⁇ 15%).
  • the metal powder may be selected from the group consisting of nickel, cobalt, iron, aluminium and alloys thereof or combinations thereof, for example a titanium alloy, a steel, or a superalloy (such as a nickel or cobalt superalloy).
  • the metal powder may be a titanium alloy.
  • the metal powder may be an alpha-beta titanium alloy.
  • the metal powder may be a titanium/aluminium/vanadium alloy, such as a Ti-6Al-4V alloy or Ti-4.5AI-3V-2Mo-2Fe.
  • the particle size of the metal power is selected to provide the desired properties of the finished article/unitary component.
  • a fine powder (with particle size of for example 20 to 500 microns) may be used to form a fine grain, high strength alloy.
  • a method of manufacturing a unitary component utilising Hot Isostatic Pressing comprising the steps of providing an apparatus as described herein, filling the HIP can with a metal powder; evacuating the HIP can; sealing the evacuated HIP can; and applying a HIP process to the apparatus in a HIP chamber.
  • the metal powder may be of substantially the same, or exactly the same, composition (and thus have the same or a similar TEC) as the HIP can and/or skin.
  • the method may further comprise the step of attaching the apparatus to a base plate.
  • the apparatus may be attached to the base plate using a vacuum.
  • the vacuum acts to create a vacuum seal thus ensuring that the apparatus is securely held in place.
  • the HIP process is carried out under pressure.
  • the pressure may be substantially reduced, such as about 50 MPa. More normally, however, the pressure is approximately 100MPa to 200 MPa. For example, for nickel superalloys the pressure used is approximately 100 MPa. In the case of aluminium, however, the pressure may have to be as high as approximately 200 MPa.
  • the HIP process is carried out at a temperature of between 450°C to 1400°C, again dependent on the material being processed.
  • the present disclosure relates to an improved HIP process for the formation of metal parts, for example titanium parts.
  • the process enables the fabrication of complex parts, with hollow sections, while avoiding the difficulties of the prior art.
  • a titanium can with a substantially similar thermal expansion coefficient to the titanium powder used in the HIP process so that the part being formed (for example skin and stringer), and the can, expand and contract at substantially similar rates. Removal of the can as in the prior art may not be necessary due to features of the fabrication process described below. Accordingly, in the process of the present invention, preferably the HIP can is not subsequently removed after the HIP process.
  • a superplastically formed can is used in conjunction with a skin component to form a unitary component, which is a unitary skin and stringer (stiffener) structure having a hollow region within the unitary component.
  • the production technique allows the fabrication of large components with complex shapes and hollow sections using a single process sequence.
  • Figure 1 shows a schematic cross-section of an example of a production apparatus for forming a component according to the processes and techniques described herein.
  • a can 100 is made from a titanium alloy of similar composition to the titanium powder which will fill it and form the component after HIP processing.
  • a titanium/aluminium/vanadium alloy such as a Ti-6Al-4V alloy may be utilised for both the powder and the can 100.
  • the can 100 may be formed using a superplastic forming process which is capable of forming components requiring no, or minimal, post processing.
  • Other techniques which are capable of producing a can 100 of appropriate dimensions which will form part of the final product may also be utilised, for example additive layer manufacturing.
  • the can 100 comprises an inner part 101 and outer part 102.
  • the inner part 101 is mounted to a skin 103.
  • the inner part 101 is joined to the skin 103 along line 104 (perpendicular to the plane of the drawing).
  • the outer part 102 is joined to the skin 103 and inner part 101 at line 105.
  • Joints 104 and 105 form gas-tight seals.
  • Electron beam (stake) welding (a fusion welding process utilising an electron beam) is particularly appropriate for forming joints 104, 105 as it is usually conducted in a vacuum, but any other suitable joining process which provides a gas tight seal may be utilised.
  • An advantage of using electron beam welding under vacuum (and with the adjacent surfaces of the inner part 101 and the skin 103 in a clean and essentially oxide-free condition) is that the inner part 101 and skin 103 will diffusion bond together during the HIP process since the surfaces will be both clean and free from gaseous elements that might otherwise either contaminate the surfaces at temperature or might be insoluble in titanium and form gas entrapment features.
  • the electron beam process also maintains a clean and oxide-free surface for the can 100 which is required for HIP processing.
  • the outer part 102 is joined to the edge of the inner part 101 and to the skin 103 at the same location (joint 105).
  • this arrangement depends on the component design.
  • the outer part 102 may be joined to the inner part 101 away from the edge of the inner part 101, or the outer part 102 may be joined directly to the skin 103.
  • the region of material of the inner part 101 between the two joins 104, 105 in Figure 1 may be omitted such that the skin 103 forms a section of the can 100.
  • any hollow zones such as hollow zone 107 between the skin 103 and the inner part 101, must each be vented such that the externally applied pressure from the HIP process will be communicated to the hollow zone 107 to act upon the outer surface of can 100.
  • the hollow zone 107 is thus vented by a vent pipe 108.
  • the hollow zone 107 may be divided into sections by further features of the component and thus multiple vents may be required to ensure all hollow zones are vented.
  • a fill pipe 109 is provided for filing the can 100 with metal powder.
  • the fill pipe 109 may be provided as is known in the art for conventional HIP cans and is of a type which may be sealed prior to HIP processing.
  • the fill pipe 109 may also be utilised to evacuate the can 100 prior to sealing and HIP processing.
  • the fill pipe 109 is shaped and located so as to permit filling of the can 100 with metal powder and to permit evacuation of the can 100.
  • a unitary component is thus formed comprising the skin 103 and can 100 (which after HIP processing is solid) parts.
  • the can 100 is formed by a process which allows the can 100 to form part of the component, for example a superplastic process using a metal or an alloy matched to that of the powder is particularly appropriate. The resulting component thus needs minimal post-processing, and in particular there is no need to remove the can 100 from within the hollow zone 107.
  • the skin 103 and can 100 assembly is mounted on a support plate 110.
  • An interface layer is provided between the support plate 110 and the skin 103, to inhibit the formation of a diffusion bond between these surfaces during the HIP process.
  • an yttria stop-off compound may be utilised, or any other suitable interface layer to inhibit a diffusion bond.
  • the support plate 110 may also be formed from titanium, but any suitable material may be utilised. It is preferable that the support plate 110 has a similar or same coefficient of thermal expansion to the material used for the component being manufactured.
  • the support plate 110 may have the desired final contour form of the skin 103. Although the skin 103 in the example is flat, the same processes and principles described above may be utilised with a non-flat skin. In such examples the support plate 110 may match the shape of the skin 103 to provide even support.
  • a seal 111 is provided and the area within that seal 111, between the skin 103 and support plate 110, is evacuated via vacuum pipe 112 to hold the skin 103 on the support plate 110.
  • the seal 111 may allow some movement between the skin 103 and support plate 110 to allow for differential expansion and contraction between the skin 103 and support plate 110.
  • Such a system provides an even force for retaining the skin 103 in location.
  • Other methods of holding the skin 103 in place may also be utilised. In so doing, compaction of the powder, which will cause overall shrinkage relative to the initial geometric form, may then be constrained to cause movement solely in the direction onto the base plate so as to better manage such dimensional and geometric change.
  • the skin 103 and can 100 assembly, on support plate 110, are placed within a HIP vessel and a HIP process applied to the parts to form the unitary stringer and skin component.
  • the skin 103 and can 100 assembly may be placed on a support plate in the HIP chamber.
  • Figure 2 shows a flow chart of a process utilising the apparatus of Figure 1 .
  • inner 101 and outer parts 102 of the can 100 are formed, for example using a superplastic forming process and separate forming dies.
  • the skin 103 is formed to the required shape. This is achieved by any known process in the art, such as rolling, superplastic forming or additive layer manufacturing.
  • the inner part 101 of the can 100 is joined to the skin 103 and the outer part 102 is joined to the skin 103 and/or inner part 101 to form a sealed can 100.
  • the can 100 is filled with powder using known techniques to ensure complete filling and then may be either directly evacuated or alternatively pre-flushed with an inert gas, such as argon, prior to evacuation. Evacuation can be achieved by any known process in the art, such as using vacuum apparatus.
  • the fill pipe 109 is then sealed, for example by mechanically crimping the end of the fill pipe 109. Pre-flushing with an inert gas such as argon (before evacuation and the fill pipe 109 being sealed) helps ensure a lower level of interstitial element take-up. This is particularly advantageous if fracture toughness is a critical factor in the design of the finished article.
  • the assembly is mounted on a support plate 110 with an appropriate interface layer.
  • the support plate 110 and assembly is positioned in a HIP chamber (in an alternative method the support plate 110 may be static in the HIP chamber and the assembly mounted on it in position), and all appropriate vent and pressure connections are made.
  • the assembly is subjected to a HIP process of pressure application and heating to a temperature sufficient to cause the powder particles to fuse and diffusion bond.
  • the time, temperature and pressure will depend on the metal/alloy composition and characteristics, such as powder particle size, melting point etc.
  • pressures typically in excess of about 50MPa, preferably about100MPa may be applied, at a temperature of approximately 900-930°C.
  • the pressure applied to the outside surface of the outer part 102 is transmitted through the outer part 102 to diffusion bond the outer part 102 to the consolidated powder.
  • the pressure is also transmitted through the consolidated powder to diffusion bond the inner part 101 to the consolidated powder, and to diffusion bond the inner part 101 to the skin 103.
  • the pressure and temperature are held for a sufficient amount of time (for example about 1-2 hours) to effect full diffusion bonding of both the powder itself and the powder to each of the can parts 101, 102.
  • the pressure may either be maintained or reduced prior to, during or after the temperature is reduced back to ambient levels.
  • the pressure is then released and the temperature is allowed to drop back to ambient temperature, and the component can be removed.
  • a unitary component comprising the skin and stringer (including a plurality of stringers or other such stiffening forms), with hollow sections, is thus formed which requires only minimal post-processing.
  • the can 100 is formed using a superplastic forming process (the can is heated up to promote super plasticity in the metal/alloy and then while soft the can is shaped, for example by thermoforming, blow forming, or vacuum forming.
  • Other forming techniques may be utilised such as casting.
  • significant post-processing may be required, and such methods are known to provide components which can present difficulties during HIP processing.
  • voids may be present in the cast can which require specific processing.
  • the can and/or skin is made from a technique that requires minimal post processing (post processing such as grinding, etching or machining). Suitable examples include superplastic forming or additive layer manufacturing (ALM).
  • the unitary component (finished article) manufactured by the apparatus and process of the present invention will have a good surface finish (comparable to that of a superplastically formed part), which requires minimal or no post processing.
  • the apparatus may be applied to any component shape to which the principles are applicable.
  • Ti-6Al-4V alloy is available in both SPF-grade sheet and also in powder form and so is seen as being a particularly suitable combination.
  • Ti-alloy powder may also be merit for some applications for Ti-alloy powder being contained within commercially pure forms of titanium cans if there was a desire to combine a higher strength core with a softer grade of inner and/or outer material.
  • skin has been used to describe part 103, but as will be appreciated this does not restrict the part to being a skin in the final product (although it may be) but is used for descriptive purposes only. In the general sense the skin is a planar, sheet, layer which may be flat or shaped.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Powder Metallurgy (AREA)
EP17184844.3A 2017-08-04 2017-08-04 Pressage isostatique à chaud de poudre Ceased EP3437768A1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
EP17184844.3A EP3437768A1 (fr) 2017-08-04 2017-08-04 Pressage isostatique à chaud de poudre
PCT/GB2018/052215 WO2019025807A1 (fr) 2017-08-04 2018-08-02 Pressage isostatique à chaud de poudre
EP18749482.8A EP3661679A1 (fr) 2017-08-04 2018-08-02 Pressage isostatique à chaud de poudre
US16/634,916 US11351606B2 (en) 2017-08-04 2018-08-02 Powder hot isostatic pressing
JP2020506191A JP7005744B2 (ja) 2017-08-04 2018-08-02 粉末熱間等方圧加圧
GB1812601.1A GB2565651B (en) 2017-08-04 2018-08-02 Powder hot isostatic pressing
SA520411205A SA520411205B1 (ar) 2017-08-04 2020-01-30 مكبس متوازن التضاغط على الساخن للمساحيق

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP17184844.3A EP3437768A1 (fr) 2017-08-04 2017-08-04 Pressage isostatique à chaud de poudre

Publications (1)

Publication Number Publication Date
EP3437768A1 true EP3437768A1 (fr) 2019-02-06

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EP17184844.3A Ceased EP3437768A1 (fr) 2017-08-04 2017-08-04 Pressage isostatique à chaud de poudre

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EP (1) EP3437768A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2130245A (en) * 1982-11-12 1984-05-31 Mtu Muenchen Gmbh A method of connecting a ceramic rotary component to a metallic rotary component for a turbomachine
JPS62274006A (ja) * 1986-05-21 1987-11-28 Kobe Steel Ltd 熱間静水圧プレス方法
US5269058A (en) * 1992-12-16 1993-12-14 General Electric Company Design and processing method for manufacturing hollow airfoils
DE4439949C1 (de) * 1994-11-09 1996-02-15 Mtu Muenchen Gmbh Verfahren zur Formgebung beim heißisostatischen Pressen
US20070020134A1 (en) * 2005-07-23 2007-01-25 Rolls-Royce Plc Method of making metal components
WO2010041957A1 (fr) * 2008-10-10 2010-04-15 Tool-Tech As Procédé de production d'une cuve sous pression sans soudure, résistant aux acides
GB2517220A (en) * 2013-08-13 2015-02-18 Maher Ltd Method for HIP can manufacture, and can

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2130245A (en) * 1982-11-12 1984-05-31 Mtu Muenchen Gmbh A method of connecting a ceramic rotary component to a metallic rotary component for a turbomachine
JPS62274006A (ja) * 1986-05-21 1987-11-28 Kobe Steel Ltd 熱間静水圧プレス方法
US5269058A (en) * 1992-12-16 1993-12-14 General Electric Company Design and processing method for manufacturing hollow airfoils
DE4439949C1 (de) * 1994-11-09 1996-02-15 Mtu Muenchen Gmbh Verfahren zur Formgebung beim heißisostatischen Pressen
US20070020134A1 (en) * 2005-07-23 2007-01-25 Rolls-Royce Plc Method of making metal components
WO2010041957A1 (fr) * 2008-10-10 2010-04-15 Tool-Tech As Procédé de production d'une cuve sous pression sans soudure, résistant aux acides
GB2517220A (en) * 2013-08-13 2015-02-18 Maher Ltd Method for HIP can manufacture, and can

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