EP3838447A1 - Verfahren zur herstellung eines werkzeugteils durch heissisostatisches pressen - Google Patents

Verfahren zur herstellung eines werkzeugteils durch heissisostatisches pressen Download PDF

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Publication number
EP3838447A1
EP3838447A1 EP20214230.3A EP20214230A EP3838447A1 EP 3838447 A1 EP3838447 A1 EP 3838447A1 EP 20214230 A EP20214230 A EP 20214230A EP 3838447 A1 EP3838447 A1 EP 3838447A1
Authority
EP
European Patent Office
Prior art keywords
useful
support
sub
support part
container
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.)
Pending
Application number
EP20214230.3A
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English (en)
French (fr)
Inventor
Sébastien CHOMETTE
Pierre-Eric Frayssines
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.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
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 Commissariat a lEnergie Atomique CEA, Commissariat a lEnergie Atomique et aux Energies Alternatives CEA filed Critical Commissariat a lEnergie Atomique CEA
Publication of EP3838447A1 publication Critical patent/EP3838447A1/de
Pending 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
    • B22F3/14—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
    • 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
    • B22F7/062—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 involving the connection or repairing of preformed parts
    • 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
    • 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
    • B22F3/24—After-treatment of workpieces or articles
    • B22F2003/248—Thermal after-treatment
    • 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
    • B22F2005/001—Cutting tools, earth boring or grinding tool other than table ware

Definitions

  • the invention relates to the field of machine tools and in particular tool parts ensuring the function of the machine tool.
  • the invention relates in particular to a method of manufacturing a tool part involving the mechanical joining of a useful part and a support part.
  • the method according to the present invention involving hot isostatic compression, makes it possible, in this regard, to improve the mechanical and environmental resistance of the tool part.
  • the tool parts used for abrasion or cutting of materials are generally monolithic in shape, and made of a metal alloy with high mechanical strength.
  • the tool parts may include areas, in particular the areas providing the function of the tool part, of greater hardness than the other areas. of the part considered.
  • the first category comprises the bonding of the useful part with the support part by means of a binder, and in particular an organic binder.
  • the interfaces brought into contact during bonding must provide for the insertion of the adhesive.
  • the second category of assembly comprises brazing as described in documents [2] to [4] cited at the end of the description.
  • Brazing comprises in particular the use of a material which has a melting temperature lower than those of the materials forming the parts to be assembled, so as to be able to pass to the liquid state during a heating step and thus bind the parts. between them.
  • Brazing gives the tool part a thermomechanical strength as well as an increased environmental resistance with regard to the tool parts formed by bonding.
  • brazing zone remains a zone of mechanical weakness which equally affects the mechanical strength of the tool part.
  • checking the brazing also requires mastering the dimensional and geometric tolerances of the parts to be assembled.
  • the third category of assembly as described in document [5] cited at the end of the description, comprises the use of a so-called composite material with a composition gradient between the useful part and the support part.
  • This third method of assembly although making it possible to contain the mechanical stresses likely to occur at the level of the assembly interface, remains complex to implement, and has a cost which is sometimes incompatible with the envisaged applications.
  • the fourth category of assembly includes mechanical assembly.
  • the mechanical assembly of the tool part can be obtained by bolting.
  • This technique which makes it possible to obtain a removable tool part, does not give the latter the mechanical resistance required for the most demanding applications.
  • the mechanical assembly can be obtained by riveting.
  • This technique in addition to the drawbacks relating to bolting, does not allow the tool part to be dismantled.
  • the mechanical assembly may involve mechanical anchoring, for example by hooping as described in documents [9] to [11] cited at the end of the description or even by compression, optionally in combination with hooping, such as described in documents [12] and [13] cited at the end of the description.
  • the profile of the interface must be essentially linear so as to allow the relative sliding of the parts to be assembled.
  • An aim of the present invention is therefore to provide a method for manufacturing a tool part making it possible to give said part increased mechanical strength with respect to the tool parts formed by the methods known in the art.
  • Another object of the present invention is to provide a method of manufacturing a tool part making it possible to give said part increased environmental resistance with respect to the tool parts formed by the methods known in the art.
  • Another aim of the present invention is to provide a method for manufacturing a tool part for which the machining tolerances of the parts to be assembled are less restrictive with regard to the methods known in the art.
  • Another object of the present invention is to provide a method of manufacturing a tool part that does not require the addition of material, in particular in liquid form, to perform the assembly.
  • the hermetic closing of the container is carried out so that the pressure inside the latter is less than 10 -3 mbar.
  • the housing formed by the container has a shape conforming to the assembly formed by the useful part with the support part.
  • step a) is carried out by means of complementary interlocking formed on one and the other of the useful and support parts.
  • said method further comprises a step a1), carried out before step c), of forming weld spots intended to keep the useful part and the support part integral with one another. .
  • said method comprises a step e), executed at the end of step d), of machining the useful part.
  • said method comprises a step f) of final heat treatment.
  • an anti-diffusion layer is formed at the interface formed between the useful part and the support part, said anti-diffusion layer being intended to limit the diffusion of material from the support part to the useful part.
  • an intermediate layer is interposed between the useful part and the support part, the intermediate layer being configured to reduce the level of stresses at the level of the interface formed between the part. useful and the support part with regard to a tool part without said intermediate layer.
  • the heat treatment comprises a temperature rise to a temperature of between 1000 ° C and 1200 ° C.
  • the heat treatment is carried out for a period of between 1 hour and 6 hours.
  • the useful part has a Rockwell C type hardness greater than that of the support part.
  • the useful part has a Rockwell C type hardness greater than 45 HRC.
  • the tool part comprises at least elements chosen from: cutting blade, a drilling head.
  • a useful part 1 is a part which is shaped to perform the function of the tool part 10.
  • the useful part carries the wire. the blade (this aspect is discussed in the remainder of the statement in the context of a first practical example of implementation of the present invention).
  • the Rockwell C type hardness measured according to standard [14] cited at the end of the description, may in this regard be greater than or equal to 45 HRC.
  • the material forming the useful part can comprise a ceramic-metal composite alloy (cermet) of the tungsten carbide type containing between 4% and 20% of cobalt in mass proportion while the support part can comprise a metal alloy, and in particular of steel 1.7225.
  • ceramic-metal composite alloy tungsten carbide type containing between 4% and 20% of cobalt in mass proportion
  • the support part can comprise a metal alloy, and in particular of steel 1.7225.
  • the working part 1 and the support part 2 can be formed by laser cutting, photochemical drilling, conventional machining, sinking, cutting by wire EDM, punching.
  • the invention is not however limited to these shaping techniques only.
  • a WC-Co tool can be used.
  • the method according to the present invention comprises a step a) of assembling the useful part 1 with the support part 2 (illustrated on figure 2 ).
  • the “assembly” according to the present invention relates only to the installation or contacting of faces, respectively, of the working part 1 and of the support part 2.
  • the assembly step has ) is nothing but a montage useful parts and support, and does not lead to a mechanical and non-removable joining of said useful parts 1 and support 2.
  • the assembly can comprise bringing a working face 11 of the working part into contact with a support face 21 of the support part 2 (the interface formed between these two faces being referenced 11A).
  • the assembly can also be carried out by means of complementary interlocking means formed on one and the other of the useful face 11 and of the support face 21.
  • the complementary interlocking means may comprise a mortise-tenon pair formed, respectively, on one of the working and support faces, and on the other of the working and support faces.
  • the complementary interlocking means may comprise a contained and containing dovetail pair formed, respectively, on one of the useful and support faces, and on the other of the useful and support faces.
  • interlocking means formed for example by machining, may have a tolerance of +0.1 mm for the containing means and of -0.1 mm for the contained means.
  • the method also comprises a step b) which consists in providing a container provided with a receptacle 4 and a cover 5 ( figure 3 ).
  • the receptacle 4 comprises a housing 4A intended to house the assembly formed in step a).
  • the shape of the housing 4A conforms to that of the assembly formed of the useful part 1 and of the support part 2.
  • the receptacle 4 as well as the cover 5 can be formed from a metal plate, for example by stamping or by folding.
  • the metal plate can in particular comprise stainless steel 1.4307 2 mm thick.
  • Step b) is then followed by step c) which consists in placing the assembly formed by the useful parts 1 and support 2 in the receptacle 4 and in closing the latter hermetically with the cover 5 ( figure 4 ).
  • hermetically sealed is understood to mean a closure which prevents any gas exchange between the external environment and the interior of the container.
  • the closure of the container may in particular comprise the formation of weld beads intended to ensure the tightness of the container.
  • the container can be closed using the TIG (Tungsten Inert Gas) technique without filler metal.
  • TIG Tungsten Inert Gas
  • the hermetic closure of the container is carried out so that the pressure inside the latter is less than 10 -3 mbar.
  • a hole can be made at a wall of the container in order to be able to impose a vacuum inside the latter by means of a pump.
  • Step c) can also be preceded by a1) forming weld spots intended to keep the useful part 1 and the support part 2 integral with one another.
  • Step c) is followed by a step d) of hot isostatic compression in a dedicated chamber.
  • the container is subjected to a thermal cycle and under a controlled pressure atmosphere, and in particular a pressure between 500 bar and 2000 bar, for example 1000 bar.
  • This step d) makes it possible in particular to seal the different parts of the useful parts 1 and support 2 together.
  • the combined action of the controlled pressure and of the thermal cycle allows in particular the plasticization and the creep of the material forming the working part 1 and of the support part 2. This results in anchoring and joining of the working parts 1 and support 2 between they.
  • a diffusion of chemical elements of the material forming the parts possibly reinforces the sealing and the solidarisation between them.
  • the thermal cycle can include a phase of temperature rise to a plateau, called the maintenance temperature.
  • the temperature rise phase can last between 1 h and 4 h, while the plateau can last between 1 h and 6 h.
  • the holding temperature can be between 1000 ° C and 1200 ° C.
  • Step d) ends with opening the container and extracting the tool part 10 thus formed ( figure 5 ).
  • the method according to the present invention may comprise a final heat treatment step f) of the tool part intended to restore the mechanical properties of the useful part only, of the support part only or of both, parts likely to have been affected during performing step d).
  • step f) can comprise a first phase and a second annealing phase.
  • the first phase can be carried out at a temperature between 800 ° C and 900 ° C, and last between 10 minutes and 60 minutes.
  • the part formed by the useful part and the support part undergoes thermal quenching, in particular oil quenching.
  • the second annealing phase is then carried out at a temperature between 600 ° C and 700 ° C, and lasts between 10 minutes and 60 minutes.
  • the method according to the present invention can also comprise one or more intermediate machining steps, and in particular a step e), executed at the end of step d), for machining the useful part.
  • the assembly step a) can be preceded by the formation of an anti-diffusion layer on one or other of the useful faces. 11 and support 21.
  • the anti-diffusion layer is intended in particular to limit the diffusion of material from the support part to the useful part.
  • an intermediate layer can be formed on one or the other of the useful faces 11 and support 21.
  • This intermediate layer is in particular configured to reduce the load. level of constraints at the level of the interface formed between the useful part and the support part with respect to a tool part without said intermediate layer.
  • the method according to the present invention thus makes it possible to seal the constituent parts of the tool part, and in particular constituent parts of a different nature.
  • the sealing thus produced between the useful part and the support part in order to obtain the tool part has a mechanical and environmental resistance much greater than that of the tool parts produced according to the methods known from the state of the art.
  • the method according to the present invention has the advantage of not involving any material in the liquid state for sealing the working and support parts.
  • the method according to the present invention opens the way to the sealing of parts with more complex shapes.
  • the remainder of the description is dedicated to the presentation of two implementation examples.
  • the first example relates to a method of manufacturing a cutting blade, while the second example describes the manufacture of a part of a drill head.
  • the figures 6 to 12 illustrate the method of manufacturing a cutting blade according to the first example of implementation of the method of manufacturing a tool part by hot isostatic compression.
  • the useful part 1 comprises in particular a ceramic-metal composite alloy (cermet) of the tungsten carbide type containing 15% cobalt in mass proportion while the support parts 2 1 , 2 2 , 2 3 , and 2 4 are made of a steel 1.7225.
  • ceramic-metal composite alloy tungsten carbide type containing 15% cobalt in mass proportion while the support parts 2 1 , 2 2 , 2 3 , and 2 4 are made of a steel 1.7225.
  • the useful face 11 of part 1 comprises a contained dovetail while the support face 21 of the support parts 2 1 and 2 4 comprises a containing dovetail.
  • the parts of the support part 2 2 and 2 3 which are identical, are provided with a half profile of the dovetail type.
  • the face opposite the useful face 11 of the useful part 1 is for example intended to support the function of the tool part 1.
  • Parts 1, 2 1 , 2 2 , 2 3 , and 2 4 are then assembled according to the terms of step a) of the process ( figure 9 ).
  • the container provided with the receptacle 4 and the cover 5 is then produced according to the terms of step b) of the process ( figure 10 ).
  • the figure 11 represents the container hermetically sealed according to the terms of step c), and housing the parts 1, 2 1 , 2 2 , 2 3 , and 2 4 assembled during step a).
  • the container housing the assembled parts 1, 2 1 , 2 2 , 2 3 , and 2 4, is then placed in a hot isostatic compression chamber so as to seal the parts together according to the terms of step d ).
  • step d the tool part, formed by the parts 1, 2 1 , 2 2 , 2 3 , and 2 4 sealed together, is extracted from the container, and is subjected to a treatment step final thermal f) intended to restore the mechanical properties of the useful part only, of the support part only or of both, liable to have been altered during the execution of step d).
  • step f) can comprise a first phase and a second annealing phase.
  • the first phase can be carried out at a temperature between 800 ° C and 900 ° C, and last between 10 minutes and 60 minutes.
  • the part formed by the useful part and the support part undergoes thermal quenching, in particular oil quenching.
  • the second annealing phase is then carried out at a temperature between 600 ° C and 700 ° C, and lasts between 10 minutes and 60 minutes.
  • the tool part 10 can be machined at the level of an opposite face of the useful face 11 so as to form a blade wire.
  • the figures 13 to 17 illustrate the method of manufacturing a part of a drilling head according to the second example of implementation of the method of manufacturing a tool part by hot isostatic compression.
  • the drilling head part by sealing a working part 1 ( figure 13 ) with two parts forming the support part 2 referenced 2 1 and 2 2 ( figures 14 ).
  • the useful part 1 comprises a ceramic-metal composite alloy (cermet) of the tungsten carbide type containing 15% cobalt in mass proportion while the parts forming the support part 2 1 and 2 2 are made of a 1.7225 steel.
  • the useful part 1 comprises a conical axisymmetric zone 1 1 and a conical tip 1 2 .
  • the parts of the support part 2 1 and 2 2 are arranged to, when assembled along their assembly face 2a, form a cavity delimited by support surface 2b intended to accommodate the conical part 1 1 of the useful part.
  • the container provided with the receptacle 4 and the cover 5 is then produced according to the terms of step b) of the process ( figure 16 ).
  • the figure 17 represents the container hermetically sealed according to the terms of step c), and housing the parts 1, 2 1 and 2 2 assembled during step a).
  • the container, housing the assembled parts 1, 2 1 and 2 2 , is then placed in a hot isostatic compression chamber so as to seal the parts together according to the terms of step d).
  • step d) the tool part, formed by the parts 1, 2 1 , and 2 2 sealed together, is extracted from the container, and is subjected to a final heat treatment step f) intended for restore the mechanical properties of the useful part only, of the support part only or of both, which may have been affected during the execution of step d) (FIG. 18).
  • step f) can comprise a first phase and a second annealing phase.
  • the first phase can be carried out at a temperature between 800 ° C and 900 ° C, and last between 10 minutes and 60 minutes.
  • the part formed by the useful part and the support part undergoes thermal quenching, in particular oil quenching.
  • the second annealing phase is then carried out at a temperature of between 600 ° C and 700 ° C, and lasts between 10 minutes and 60 minutes.
  • the tool part 10 can be machined at the level of the conical point 1 2 .
  • the first and second examples of a method for manufacturing a tool part can implement an anti-diffusion layer of the first variant and / or the intermediate layer of the second variant.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Materials Engineering (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Press Drives And Press Lines (AREA)
EP20214230.3A 2019-12-18 2020-12-15 Verfahren zur herstellung eines werkzeugteils durch heissisostatisches pressen Pending EP3838447A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1914777A FR3105040B1 (fr) 2019-12-18 2019-12-18 Procédé de fabrication par compression isostatique à chaud d’une pièce outil

Publications (1)

Publication Number Publication Date
EP3838447A1 true EP3838447A1 (de) 2021-06-23

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EP20214230.3A Pending EP3838447A1 (de) 2019-12-18 2020-12-15 Verfahren zur herstellung eines werkzeugteils durch heissisostatisches pressen

Country Status (2)

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EP (1) EP3838447A1 (de)
FR (1) FR3105040B1 (de)

Citations (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2944323A (en) 1954-12-07 1960-07-12 Georg Hufnagel Werkzengfabrik Compound tool
GB2184382A (en) * 1985-12-23 1987-06-24 Hip Ltd Securing inserts
EP0284579A1 (de) 1987-03-13 1988-09-28 Sandvik Aktiebolag Werkzeug aus Sintercarbid
WO2004103617A1 (en) 2003-05-14 2004-12-02 Diamond Innovations, Inc. Cutting tool inserts and methods to manufacture
US20050244266A1 (en) * 2004-04-05 2005-11-03 Snecma Moteurs Turbine casing having refractory hooks and obtained by a powder metallurgy method
US7367753B2 (en) 2005-09-14 2008-05-06 Jakob Lach Gmbh & Co. Kg Milling cutter
WO2008121219A1 (en) 2007-03-30 2008-10-09 Baker Hughes Incorporated Shrink-fit sleeve assembly for a drill bit, including nozzle assembly and method therefor
WO2009149071A2 (en) 2008-06-02 2009-12-10 Tdy Industries, Inc. Cemented carbide-metallic alloy composites
CN101602112A (zh) 2009-06-29 2009-12-16 株洲钻石切削刀具股份有限公司 用于可转位刀片的固定刀夹
CN101774033A (zh) 2010-01-19 2010-07-14 株洲钻石切削刀具股份有限公司 装配刀片用紧固结构
WO2011146743A2 (en) 2010-05-20 2011-11-24 Baker Hughes Incorporated Methods of forming at least a portion of earth-boring tools
WO2011146760A2 (en) 2010-05-20 2011-11-24 Baker Hughes Incorporated Methods of forming at least a portion of earth-boring tools, and articles formed by such methods
US20120039739A1 (en) * 2010-08-10 2012-02-16 David Krauter Cutter rings and method of manufacture
US8268452B2 (en) 2007-07-31 2012-09-18 Baker Hughes Incorporated Bonding agents for improved sintering of earth-boring tools, methods of forming earth-boring tools and resulting structures
US20140305045A1 (en) * 2011-05-25 2014-10-16 Beckmann Engineering Self-renewing cutting surface, tool and method for making same using powder metallurgy and densification techniques
US9827611B2 (en) 2015-01-30 2017-11-28 Diamond Innovations, Inc. Diamond composite cutting tool assembled with tungsten carbide
WO2019043461A2 (en) 2017-08-31 2019-03-07 Emerson Process Management (Tianjin) Valves Co., Ltd. MECHANICAL FASTENING METHOD FOR CARBIDE TIP VALVE CAP
EP3656974A1 (de) * 2018-11-23 2020-05-27 Sandvik Mining and Construction Tools AB Plattenschneider für hinterschnittvorrichtung und verfahren zur herstellung davon

Patent Citations (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2944323A (en) 1954-12-07 1960-07-12 Georg Hufnagel Werkzengfabrik Compound tool
GB2184382A (en) * 1985-12-23 1987-06-24 Hip Ltd Securing inserts
EP0284579A1 (de) 1987-03-13 1988-09-28 Sandvik Aktiebolag Werkzeug aus Sintercarbid
WO2004103617A1 (en) 2003-05-14 2004-12-02 Diamond Innovations, Inc. Cutting tool inserts and methods to manufacture
US20050244266A1 (en) * 2004-04-05 2005-11-03 Snecma Moteurs Turbine casing having refractory hooks and obtained by a powder metallurgy method
US7367753B2 (en) 2005-09-14 2008-05-06 Jakob Lach Gmbh & Co. Kg Milling cutter
WO2008121219A1 (en) 2007-03-30 2008-10-09 Baker Hughes Incorporated Shrink-fit sleeve assembly for a drill bit, including nozzle assembly and method therefor
US8268452B2 (en) 2007-07-31 2012-09-18 Baker Hughes Incorporated Bonding agents for improved sintering of earth-boring tools, methods of forming earth-boring tools and resulting structures
WO2009149071A2 (en) 2008-06-02 2009-12-10 Tdy Industries, Inc. Cemented carbide-metallic alloy composites
CN101602112A (zh) 2009-06-29 2009-12-16 株洲钻石切削刀具股份有限公司 用于可转位刀片的固定刀夹
CN101774033A (zh) 2010-01-19 2010-07-14 株洲钻石切削刀具股份有限公司 装配刀片用紧固结构
WO2011146743A2 (en) 2010-05-20 2011-11-24 Baker Hughes Incorporated Methods of forming at least a portion of earth-boring tools
WO2011146760A2 (en) 2010-05-20 2011-11-24 Baker Hughes Incorporated Methods of forming at least a portion of earth-boring tools, and articles formed by such methods
US20120039739A1 (en) * 2010-08-10 2012-02-16 David Krauter Cutter rings and method of manufacture
US20140305045A1 (en) * 2011-05-25 2014-10-16 Beckmann Engineering Self-renewing cutting surface, tool and method for making same using powder metallurgy and densification techniques
US9827611B2 (en) 2015-01-30 2017-11-28 Diamond Innovations, Inc. Diamond composite cutting tool assembled with tungsten carbide
WO2019043461A2 (en) 2017-08-31 2019-03-07 Emerson Process Management (Tianjin) Valves Co., Ltd. MECHANICAL FASTENING METHOD FOR CARBIDE TIP VALVE CAP
EP3656974A1 (de) * 2018-11-23 2020-05-27 Sandvik Mining and Construction Tools AB Plattenschneider für hinterschnittvorrichtung und verfahren zur herstellung davon

Also Published As

Publication number Publication date
FR3105040A1 (fr) 2021-06-25
FR3105040B1 (fr) 2023-11-24

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