EP3485100A1 - Dent fabriquée par fabrication additive pour le dragage ou l'exploitation minière - Google Patents

Dent fabriquée par fabrication additive pour le dragage ou l'exploitation minière

Info

Publication number
EP3485100A1
EP3485100A1 EP17755271.8A EP17755271A EP3485100A1 EP 3485100 A1 EP3485100 A1 EP 3485100A1 EP 17755271 A EP17755271 A EP 17755271A EP 3485100 A1 EP3485100 A1 EP 3485100A1
Authority
EP
European Patent Office
Prior art keywords
cutting
metal alloy
cutting element
section
element according
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.)
Withdrawn
Application number
EP17755271.8A
Other languages
German (de)
English (en)
Inventor
Ismail HEMMATI
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.)
IHC Holland lE BV
Original Assignee
IHC Holland lE BV
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 IHC Holland lE BV filed Critical IHC Holland lE BV
Publication of EP3485100A1 publication Critical patent/EP3485100A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
    • E02F9/2808—Teeth
    • E02F9/285—Teeth characterised by the material used
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
    • B32B15/013—Layered products comprising a layer of metal all layers being exclusively metallic one layer being formed of an iron alloy or steel, another layer being formed of a metal other than iron or aluminium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y10/00—Processes of additive manufacturing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y80/00—Products made by additive manufacturing
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
    • E02F9/2866—Small metalwork for digging elements, e.g. teeth scraper bits for rotating digging 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
    • 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
    • B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
    • B22F12/50—Means for feeding of material, e.g. heads
    • B22F12/53—Nozzles
    • 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
    • B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
    • B22F12/50—Means for feeding of material, e.g. heads
    • B22F12/58—Means for feeding of material, e.g. heads for changing the material composition, e.g. by mixing
    • 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
    • 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 cutting element for cutting material in underwater operations like for example rock cutting teeth.
  • the invention also relates to the manufacturing or refurbishing a cutting element for cutting material in underwater operations.
  • rock cutting tooth is a cast steel casing with a tungsten carbide composite insert or aluminium oxide insert fitted into the cast steel casing.
  • WO2005005737 Another example of a tooth system is found in WO2005005737.
  • the tooth has a core.
  • This tooth system has similar problems as the one with the insert.
  • the invention aims to enhance the performance and lifetime of cutting elements like rock cutting teeth. Another object of the invention is to improve known cutting elements in that a problem associated therewith is at least partly solved.
  • Yet another object of the invention is to provide an alternative cutting element.
  • a cutting element for cutting material in underwater operations comprising at least first and second cutting sections wherein the first cutting section comprises a first metal alloy and the second cutting section comprises a second metal alloy different to the first metal alloy, wherein the first and second cutting section are deposited by additive manufacturing and wherein the first and second cutting section are interconnected by melt bond.
  • the first and second cutting section are deposited by high power additive manufacturing.
  • Laser based processes or arc-based processes are known examples of high power additive manufacturing methods.
  • a meltpool is created by the power of the laser or arc and the metal alloy(s) are added in the meltpool.
  • the sections being interconnected by meltbond enables to obtain a cutting element of one piece having improved durability and reliability.
  • Durability relates to wear resistance and reliability to impact resistance.
  • increasing the durability and reliability means that the cutting element has a higher wear resistance and a larger capacity to absorb the impact loads without fracture of the cutting element.
  • the above-mentioned additive manufacturing processes at least involve that the first and second metal alloy are being deposited by injecting these in for example powder form, into a meltpool. This results in smooth and gradual transition from the first cutting section to the other one and enables to control this transition. This improves the thermal properties of the cutting element as a whole.
  • This laser based technology includes at least Laser Metal Deposition (LMD), Laser cladding and Directed Energy Deposition (DED). It should be noted that the laser based processes involve a beam (laser or electron), and material addition (powder or wire).
  • the cutting element comprises a base section configured in order to connect to a cutting head, and wherein the base section supports the first and second cutting section.
  • the base section supports the first and second cutting section such that the cutting element maintains his position while cutting.
  • the first and second cutting sections may be deposited directly on the base section if desired.
  • the cutting element has in use a line of attack, wherein an interface between the first and second cutting section extends transverse relative to the line of attack.
  • the interface between the first and section cutting section extends substantially parallel to a longitudinal axis of the cutting element. This is true for a so called core/shell combination.
  • Other configurations are however conceivable such as alternating layers of the first and second metal alloys.
  • the first and second cutting section extend co-axially. This allows to maintain the cutting performance of the cutting element constant over its lifetime.
  • the first and second metal alloys differ at least in their elasticity and hardness properties.
  • the first cutting section extends at an inner core of the cutting element and the first metal alloy has a Rockwell C (HRc) Hardness between 60 - 80 HRc, more specifically between 65 - 75 HRc.
  • HRc Rockwell C
  • the first metal alloy has a wear resistance according to ASTM G65-04 Procedure A resulting in a mass loss of about or less than 0.07 g (+/- 0.01) after about 6,000 test cycles.
  • the second cutting section extends at an outer periphery of the cutting element and the second metal alloy hardens upon impact.
  • the second metal alloy comprises an austenitic structure at room temperature that transforms to a martensite structure at temperature. More specifically, the second metal alloy comprises at least Fe, Mn, and C.
  • the first and second cutting section in use extend over a cutting surface of the cutting element. This ensures the ability to enjoy the cutting properties of the cutting element. It will be clear that in case of a core shell configuration, initially only the outer one of the first and second cutting section will extend over a cutting surface.
  • the first and second cutting section are melt bonded over the whole of their mutual overlap. This ensures a higher integrity of the cutting element in particular during its entire life.
  • the invention also relates to a tooth system comprising a base structure and a cutting element according to the invention detachably connected to the base structure, wherein the base structure is configured for secure mounting to a cutter head by e.g. means of welding or mechanical fastening means.
  • the invention further relates to a cutting head comprising a cutting element according to a preceding claim.
  • the cutting head can for example be designed for dredging, mining or trenching.
  • this is realized with a method for manufacturing a cutting element for cutting strata including rock, the cutting element comprising at least first and second cutting sections, wherein the method comprises; a. depositing a first metal alloy by additive manufacturing for providing the first cutting section,
  • step b is without interrupting depositing of the first or second metal alloy or a combination thereof.
  • the method comprises;
  • step b comprises
  • the method comprises on site performing any of steps a-e. This is done on an intended location such as the project site.
  • the method comprises refurbishing a damaged cutting element. In this manner, the top edge of the worn-out element is cut off and afterwards the element is brought back to its original dimensions or a different one, by depositing several layers consisting of the first and second material alloys.
  • the invention further relates to a device comprising one or more of the
  • the invention further relates to a method comprising one or more of the characterising features described in the description and/or shown in the attached drawings.
  • Fig. 1 a perspective cutaway view of a cutting element according to the invention
  • fig. 2a a cross sectional top view of the cutting element the according to fig. 1
  • fig. 2b a cross sectional top view of another embodiment of the cutting element
  • fig 3a a cross section of fig. 2;
  • fig. 3b a detail of fig. 3 a
  • a cutting element 3 according to the invention is shown.
  • the cutting element 3 is suitable and configured for cutting material in underwater operations.
  • the cutting element 3 comprising at least first 1 and second 2 cutting sections.
  • the first cutting section 1 comprises a first metal alloy and the second cutting section 2 comprises a second metal alloy.
  • the second metal alloy is different compared to the first metal alloy.
  • the first 1 and second 2 cutting sections are both deposited by laser based additive manufacturing processes, for example by DED or laser cladding.
  • the first 1 and second 2 cutting section are interconnected by meltbond.
  • the first 1 and second 2 cutting section are melt bonded over the whole of their mutual overlap.
  • the cutting element 3 comprises a base section 4 that is only schematically depicted.
  • the base section 4 is designed to support the cutting sections 1, 2 during cutting operations.
  • the base section 4 is also configured to detachably connect the cutting element 3 to a cutter head 5 as shown in fig. 5 to be able to change cutting elements 3.
  • cutting elements 3 may be worn out already after for example half an hour and then need to be replaced.
  • the base section 4 in connection with the cutting sections 1, 2 can be an adaptor from a cutting head (not shown) or any other suitable means.
  • the cutting element 3 of fig. 1 has a so called core shell configuration.
  • the first cutting section 1 extends at an inner core while the second cutting section 2 extends at an outer periphery of the cutting element 3.
  • first 1 and second 2 cutting sections extend along a longitudinal axis 7 of the cutting element 3.
  • first 1 and second 2 cutting section extend co-axially along the longitudinal axis 7.
  • an interface 6 between the first 1 and second section 2 extends substantially parallel to a longitudinal axis 7 of the cutting element.
  • the interface 6 is cone shaped.
  • the interface 6 can be a fading interface comprising at least one of the alloys of the first 1 and second section 2.
  • the first cutting section 1 and the second cutting section 2 form a cutting element
  • Both the first cutting section 1 and the second cutting section 2 provide strength and integrity to the cutting element in connection with the cutting force Fc.
  • both the first cutting section 1 and the second cutting section 2 extend over about half of the diameter of the cutting element at the base thereof.
  • the base of the cutting element 3 is the side facing the base section 4.
  • the cutting element 3 has in use a line of attack 8 that is the line along which a cutting force Fc acts on the cutting element 3.
  • the interface 6 between the first 1 and second 2 cutting section extends transverse relative to the line of attack 8.
  • the longitudinal axis 7 of the cutting element 3 extends transverse relative to the line of attack 8. It will be clear the other mutual orientations of the longitudinal axis 7 of the cutting element 3 and the line of attack 8 are possible.
  • the cutting force Fc is applied on the outer surface of the cutting element 3.
  • Fig. 2a is a cross sectional top view of the cutting element 3 shown in fig. 1.
  • the cutting element 3 of fig. 1 has a core shell
  • Fig. 2b is a cross sectional top view of the cutting element 3 in an alternative configuration.
  • the difference compared with the view of fig. 2a is that the cutting element 3 has alternating layers of the first and second metal alloys. This even more improves thermal properties and cutting characteristics of the cutting element 3.
  • the cutting element 3 is manufactured through a laser based additive
  • Fig 3a shows a cross section of such a layer 20.
  • fig. 2 The layer 20 is grown by laying weld beads that are shown as a semicircular shape that can be best seen in fig. 3B that shows a detail of fig. 3a.
  • the first 1 and second 2 cutting sections are shown as well as an interface 6 between the first 1 and second 2 cutting sections.
  • the first cutting section 1 is made of a first metal alloy.
  • the second cutting 2 is made of a second metal alloy.
  • the second metal alloy is different to the first metal alloy.
  • the first and second metal alloys differ in their elasticity and hardness properties.
  • the first metal alloy has a Rockwell C (HRc) Hardness between 60 - 80 HRc, more specifically between 65 - 75 HRc.
  • the first metal alloy has a wear resistance according to ASTM G65-04 Procedure A resulting in a mass loss of about or less than 0.07 g (+/- 0.01) after about 6,000 test cycles.
  • the second metal alloy is, at least initially, softer than the first metal alloy. However, the second metal alloy hardens upon impact. Metal alloys that harden upon impact are known per se.
  • the second metal alloy comprises Fe, Mn, and C for determining the hardness properties of the second metal alloy.
  • An example of an alloy that can be chosen as the second metal alloy is Hadfield steel.
  • Fig. 4 schematically shows an apparatus 9 for manufacturing the cutting element 3 according to the invention.
  • a method for manufacturing the cutting element will now be described referring to the apparatus 9.
  • the method involves depositing a first metal alloy 13 by additive manufacturing for providing the first cutting section 1.
  • the first metal alloy 13 is stored in powder form in a first container 10.
  • the first metal alloy 13 is transported to the melting pool on the substrate through a first supply line 14, a mixing device 17 and finally through an exit nozzle 16.
  • the method involves depositing a second metal alloy 12 by additive manufacturing for providing the second cutting section 2.
  • the second metal alloy 12 is stored in powder form in a second container 11.
  • the second metal alloy 12 is transported to the melting pool on the substrate through a second supply line 15, a mixing device 17 and finally through an exit nozzle 16.
  • the first metal alloy 13 and the second metal alloy 12 exit through a common exit nozzle 16.
  • the method also involves changing over a material supply from the exit nozzle 16 to the melting pool from the first metal alloy 13 to the second metal alloy 12 in order to stop depositing the first metal alloy 13 and to start depositing the second metal alloy 12.
  • the changeover is directed by the mixing device 17 that has the first metal alloy 13 and the second metal alloy 12 as inputs through respective first 14 and second 15 supply lines and has the common exit nozzle 16 as its output.
  • the mixing device 16 can mix the first metal alloy 13 and the second metal alloy 12 as desired between 100% first metal alloy 13 and 100% second metal alloy 12.
  • the changeover can be done gradually.
  • the change over from the first metal alloy 13 to the second metal alloy 12 can be done gradually so that the width of the interface 6 can be a number of weld beads.
  • the change over from the first metal alloy 13 to the second metal alloy 12 is done stepwise. At each circumambulation of a weld bead around the longitudinal axis 7 a step is made in the mixing process to provide a gradual change over from the first metal alloy 13 to the second metal alloy 12.
  • a gradual change over from the first metal alloy 13 to the second metal alloy 12 improves the thermal properties of the cutting element 3 by preventing a sudden transition from one material to the other one. This will decrease the amount of mismatch, or in other words thermal stress, between the two materials once they are heated by the friction of the operation. This is important in view of the high temperatures and number of temperature cycles during use of the cutting element.
  • the method involves controlling a ratio between supply of the first metal alloy 13 and the second metal alloy 12 during changing over from the first metal alloy to the second metal alloy in order to configure an interface 6 between the first 1 and second 2 cutting section.
  • the mixing device 17 has a controller 22 to control the mixture of the first metal alloy 13 and the second metal alloy 12.
  • the controller 22 can be internal or external as desired. The changeover is without interrupting depositing of the first 13 or second 12 metal alloy or a combination thereof This promotes the mechanical integrity of the cutting element 3.
  • one manufactured layer 20 of the cutting element is shown on a carrier 21. It will be clear that many more layers will follow to constitute a cutting element 3. At least once a changeover is required for a layer 20. In case of the shell core configuration, two change overs are required per layer from the first metal alloy to the second metal alloy for forming the first and second cutting sections.
  • weld bead laying strategy would be to start from the outer side of the layer 20 with Hadfield steel and move towards inside in a spiral pattern and reverse the sequence in the next layer, and so on. In this way, the entire section could be deposited without interruption and with minimum switching, which is changing over, between materials.
  • An alternative weld bead laying strategy implies the deposit of the layer 20 from outside towards the inside of the cutting element 3 in a spiral pattern and start again either from the outside or the inside to deposit the next layer.
  • first 13 and second 12 metal alloys can be provided in a different form than powder i.e. wire, wherein two wires are simultaneously fed to produce the interface 6. Instead of controlling the mixture of powder, the feeding speed of the wires is controlled. Nonetheless, there may be areas of the interface 6, wherein only one metal alloy is provided by means of a wire, and other areas of the interface 6 where the metal alloy is provided with one or two wires having similar or different alloys. Also a combination of powder feedstock and wire feedstock is conceivable.
  • the method may comprise the scanning of the damaged cutting element to build a 3d data model and then adjust the deposition process to the 3d data model.
  • Fig. 5 schematically shows a cutter head 5 provided with cutting elements 3 according to the invention.
  • the cutter head 5 has a central axis 23. In use, the cutter head 5 rotates around the central axis 23.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Component Parts Of Construction Machinery (AREA)
  • Earth Drilling (AREA)

Abstract

L'invention concerne un élément de coupe (3) pour couper un matériau au cours d'opérations sous-marines, l'élément de coupe (3) comprenant au moins une première section de coupe (1) et une seconde section de coupe (2), la première section de coupe (1) comprenant un premier alliage métallique et la seconde section de coupe (2) comprenant un second alliage métallique différent du premier alliage métallique, les première et seconde sections de coupe (1, 2) étant déposées par fabrication additive et les première et seconde sections de coupe (1, 2) étant liées l'une à l'autre par une liaison à l'état fondu.
EP17755271.8A 2016-07-18 2017-07-18 Dent fabriquée par fabrication additive pour le dragage ou l'exploitation minière Withdrawn EP3485100A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL2017180A NL2017180B1 (en) 2016-07-18 2016-07-18 Additive manufactured tooth for dredging or mining
PCT/NL2017/050482 WO2018016948A1 (fr) 2016-07-18 2017-07-18 Dent fabriquée par fabrication additive pour le dragage ou l'exploitation minière

Publications (1)

Publication Number Publication Date
EP3485100A1 true EP3485100A1 (fr) 2019-05-22

Family

ID=56936494

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17755271.8A Withdrawn EP3485100A1 (fr) 2016-07-18 2017-07-18 Dent fabriquée par fabrication additive pour le dragage ou l'exploitation minière

Country Status (4)

Country Link
EP (1) EP3485100A1 (fr)
CN (1) CN110226011A (fr)
NL (1) NL2017180B1 (fr)
WO (1) WO2018016948A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3941675A1 (fr) 2019-03-22 2022-01-26 DMC Global Inc. Article gainé doté d'une couche de gaine ayant une épaisseur variable
WO2021205969A1 (fr) * 2020-04-09 2021-10-14 株式会社小松製作所 Composant résistant à l'usure

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5433280A (en) * 1994-03-16 1995-07-18 Baker Hughes Incorporated Fabrication method for rotary bits and bit components and bits and components produced thereby
SE524301C2 (sv) 2003-07-11 2004-07-20 Combi Wear Parts Ab Tandsystem
US7303030B2 (en) * 2003-11-25 2007-12-04 Smith International, Inc. Barrier coated granules for improved hardfacing material
US7913779B2 (en) * 2005-11-10 2011-03-29 Baker Hughes Incorporated Earth-boring rotary drill bits including bit bodies having boron carbide particles in aluminum or aluminum-based alloy matrix materials, and methods for forming such bits
NL2009146C2 (en) * 2012-07-06 2014-01-07 Ihc Holland Ie Bv Cutter head for removing material from a water bed.
WO2015047408A2 (fr) * 2013-09-30 2015-04-02 Halliburton Energy Services, Inc. Application de rechargement dur de revêtement sur des outils de découpe de fond de trou
US10259159B2 (en) * 2013-10-18 2019-04-16 Kabushiki Kaisha Toshiba Stack forming apparatus and manufacturing method of stack formation
WO2015120326A1 (fr) * 2014-02-07 2015-08-13 Varel International Ind., L.P. Dispositif de coupe du type fraise-foret et trépan
CN203821470U (zh) * 2014-03-11 2014-09-10 徐跃鹏 一种大螺距绞吸装置用绞刀头
GB201409694D0 (en) * 2014-05-31 2014-07-16 Element Six Gmbh Method of coating a body, granules for the method and method of making granules
WO2016015771A1 (fr) * 2014-07-31 2016-02-04 Bic-Violex Sa Revêtement de lame de rasoir
US20160039006A1 (en) * 2014-08-05 2016-02-11 Caterpillar Inc. Shell and Core Additive Manufacture
CN105695982B (zh) * 2016-01-25 2018-08-14 西安交通大学 一种增材制造铜钨功能梯度材料电触头的方法

Also Published As

Publication number Publication date
WO2018016948A1 (fr) 2018-01-25
CN110226011A (zh) 2019-09-10
NL2017180B1 (en) 2018-01-24

Similar Documents

Publication Publication Date Title
US11370049B2 (en) Earth-boring tools having particle-matrix composite bodies and methods for welding particle-matrix composite bodies
US6651756B1 (en) Steel body drill bits with tailored hardfacing structural elements
CN104245221B (zh) 先进的堆焊焊道累进方法
US8673455B2 (en) In-situ composite formation of damage tolerant coatings utilizing laser
US10577868B2 (en) Macroscopic drill bit reinforcement
CN100526506C (zh) 一种金属/金属陶瓷复合材料及其制造方法与应用
FI118518B (fi) Menetelmä monimateriaalikomponentin tai -rakenteen valmistamiseksi sekä monimateriaalikomponentin tai -rakenteen käyttö
CN105492145A (zh) 用于生产三维制品的方法和利用此种方法生产的制品
CN102046320A (zh) 采用利用脉冲电流和金属线的mig方法制造金属部件的一部分
US20100155148A1 (en) Earth-Boring Particle-Matrix Rotary Drill Bit and Method of Making the Same
EP3485100A1 (fr) Dent fabriquée par fabrication additive pour le dragage ou l'exploitation minière
US9481057B2 (en) Method for applying hardfacing to a matrix substrate of a drill bit
KR20110025432A (ko) 절삭/연마 공구 및 그 제조방법
US11987889B2 (en) Boring bit component with hard face wear resistance material with subsequent heat treatment
WO2018062127A1 (fr) Pièce résistant à l'usure par érosion et son procédé de fabrication
KR20160111913A (ko) 절단 도구용 준비 재료를 생산하는 방법 및 대응하는 준비 재료
KR20210094524A (ko) 터널 보링 머신용 디스크 커터 및 이의 제조 방법
CN106413960A (zh) 制造切削刀具用的粗加工材料的方法及相应的粗加工材料
CN107866582A (zh) 可旋转切削工具
US10717129B2 (en) Pre-diffused mandrel coating to provide enhanced bonding between metallic and composite components
US20200277825A1 (en) Methods to attach highly wear resistant materials to downhole wear components
CN117066501B (zh) 一种耐磨合金材料、盾构耐磨刀圈及盾构机
CN118481536A (zh) 一种耐磨抗冲蚀钻头及其制备方法

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20190110

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

111Z Information provided on other rights and legal means of execution

Free format text: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Effective date: 20191220

18D Application deemed to be withdrawn

Effective date: 20190910

111Z Information provided on other rights and legal means of execution

Free format text: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Effective date: 20191220