Patents by Inventor Stefan Ederyd
Stefan Ederyd has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11933107Abstract: A disc cutter for a cutting unit used in an undercutting operation and a method of producing the same. The disc cutter including an annular disc body made of a metal alloy or metal matrix composite having a first side, a second side arranged substantially opposite to the first side and a radially peripheral part. At least one metal alloy, metal matrix composite or cemented carbide cutting part is mounted in and substantially encircling the radially peripheral part of the disc body which protrudes outwardly therefrom to engage with the rock during the mining operation. The at least one cutting part is made from a material having a higher wear resistance than the material used for the disc body, wherein the disc body and the cutting part are joined by diffusion bonds.Type: GrantFiled: October 31, 2019Date of Patent: March 19, 2024Assignee: Sandvik Mining and Construction Tools ABInventors: Bjorn Claesson, Stefan Ederyd, Johan Sundstrom, Tomas Berglund, Fredrik Meurling
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Publication number: 20230125758Abstract: A composite body and a method for producing an integrally cast composite body, which includes at least two zones. A first zone is substantially formed of metal material, and, a second zone additionally includes a non-metallic reinforcing material, such as cement carbide. The composite body is particularly useful for producing products which have at least one wear resistant zone or surface.Type: ApplicationFiled: December 8, 2020Publication date: April 27, 2023Applicant: CONV AUSTRALIA HOLDING PTY LTDInventors: Oskar LARSSON, Stefan EDERYD
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Publication number: 20220098710Abstract: Provided is a cemented carbide suitable for use as a material in the manufacture of a punch for metal forming and in particular for the manufacture of metal beverage cans. The cemented carbide may include a hard phase that includes WC, a binder phase and a gamma phase. The gamma phase may include metal carbides in combination with metal nitrides or metal carbonitrides. A quotient of the average grain size of WC/the average grain size of the gamma phase may be in a range of from 0.5 to 1.5.Type: ApplicationFiled: January 23, 2020Publication date: March 31, 2022Inventors: Nuria CINCA I LUIS, Laura LARRIMBE, Jose MARIA TARRAGO, Stefan Ederyd
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Publication number: 20220018251Abstract: A disc cutter for a cutting unit used in a tunnel boring machine and a method of producing the same. The disc cutter includes an annular disc body made of a metal alloy or metal matrix composite having a first side, a second side arranged substantially opposite to the first side and a radially peripheral part. At least one metal alloy, metal matrix composite or cemented carbide cutting part is mounted in and substantially encircling the radially peripheral part of the disc body, which protrudes outwardly therefrom to engage with the rock during the mining operation. The at least one cutting part is made from a material having a higher wear resistance than the material used for the disc body. A metallic interlayer is disposed between at the least one disc body and the at least one cutting part, the elements of which form the diffusion bonds.Type: ApplicationFiled: October 31, 2019Publication date: January 20, 2022Inventors: Stefan EDERYD, Johan SUNDSTROM, Tomas BERGLUND, Fredrik MEURLING
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Publication number: 20220010627Abstract: A disc cutter for a cutting unit used in an undercutting operation and a method of producing the same. The disc cutter including an annular disc body made of a metal alloy or metal matrix composite having a first side, a second side arranged substantially opposite to the first side and a radially peripheral part. At least one metal alloy, metal matrix composite or cemented carbide cutting part is mounted in and substantially encircling the radially peripheral part of the disc body which protrudes outwardly therefrom to engage with the rock during the mining operation. The at least one cutting part is made from a material having a higher wear resistance than the material used for the disc body, wherein the disc body and the cutting part are joined by diffusion bonds.Type: ApplicationFiled: October 31, 2019Publication date: January 13, 2022Inventors: Bjorn CLAESSON, Stefan EDERYD, Johan SUNDSTROM, Tomas BERGLUND, Fredrik MEURLING
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Patent number: 10196712Abstract: The present disclosure relates to a wear part having high wear resistance and strength and a method of making the same. The wear part is composed of a compound body of cemented carbide particles cast with a low-carbon steel alloy. The low-carbon steel alloy has a carbon content corresponding to a carbon equivalent Ceq=wt % C+0.3(wt % Si+wt % P) of about 0.1 to about 1.5 weight %. The wear part could include a body with a plurality of inserts of cemented carbide particles cast into a low-carbon steel alloy disposed in the body. Each of the plurality of cemented carbide inserts are coated with at least one layer of oxidation protection/chemical resistant material. The plurality of inserts are directly fixed onto a mold corresponding to the shape of the wear part. The cemented carbide inserts are then encapsulated with the molten low-carbon steel alloy to cast the cemented carbide inserts with the low-carbon steel alloy.Type: GrantFiled: November 7, 2013Date of Patent: February 5, 2019Assignee: Sandvik Hyperion ABInventor: Stefan Ederyd
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Patent number: 9656345Abstract: A friction stir welding tool for welding of metallic plates and especially steel plates. The friction stir welding tool is made of cemented carbide comprising WC grains in a binder phase and wherein the welding tool is at least partly coated with a surface coating comprising Al2O3.Type: GrantFiled: November 9, 2012Date of Patent: May 23, 2017Assignee: SANDVIK INTELLECTUAL PROPERTY ABInventors: Stefan Ederyd, Henrik Nordenstrom
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Patent number: 9624417Abstract: The invention is a low binder, wear resistant material including, in weight percent of raw materials, from 15% to 20% of molybdenum carbide added in either elemental or compound form, an alloy of 0.9% to 3% cobalt, nickel or a combination of cobalt and nickel, of 0 to 0.1% of chromium carbide, optionally also titanium carbide or titanium tungsten carbide and the balance of tungsten carbide.Type: GrantFiled: October 9, 2013Date of Patent: April 18, 2017Assignee: SANDVIK INTELLECTUAL PROPERTY ABInventors: Alexander Hirsch, Annabelle Meilland, Stefan Ederyd, Marion Fumaroli, Ylva Gerharson
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Patent number: 9233418Abstract: The present invention relates to a compound body comprising cemented carbide and steel with a carbon content corresponding to a carbon equivalent Ceq=wt-% C+0.3(wt-% Si+wt-% P) of from about 0.1 to about 0.85 wt-%. The body is particularly useful for earth moving tools e.g. dredge cutter heads.Type: GrantFiled: November 7, 2008Date of Patent: January 12, 2016Assignee: Sandvik Intellectual Property ABInventors: Stefan Ederyd, Per Quarfordt
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Publication number: 20150299827Abstract: The present disclosure relates to a wear part having high wear resistance and strength and a method of making the same. The wear part is composed of a compound body of cemented carbide particles cast with a low-carbon steel alloy. The low-carbon steel alloy has a carbon content corresponding to a carbon equivalent Ceq=wt % C+0.3(wt % Si+wt % P) of about 0.1 to about 1.5 weight %. The wear part could include a body with a plurality of inserts of cemented carbide particles cast into a low-carbon steel alloy disposed in the body. Each of the plurality of cemented carbide inserts are coated with at least one layer of oxidation protection/chemical resistant material. The plurality of inserts are directly fixed onto a mold corresponding to the shape of the wear part. The cemented carbide inserts are then encapsulated with the molten low-carbon steel alloy to cast the cemented carbide inserts with the low-carbon steel alloy.Type: ApplicationFiled: November 7, 2013Publication date: October 22, 2015Inventor: Stefan EDERYD
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Publication number: 20150259590Abstract: The invention is a low binder, wear resistant material including, in weight percent of raw materials, from 15% to 20% of molybdenum carbide added in either elemental or compound form, an alloy of 0.9% to 3% cobalt, nickel or a combination of cobalt and nickel, of 0 to 0.1% of chromium carbide, optionally also titanium carbide or titanium tungsten carbide and the balance of tungsten carbide.Type: ApplicationFiled: October 9, 2013Publication date: September 17, 2015Inventors: Alexander Hirsch, Annabelle Meilland, Stefan Ederyd, Marion Fumaroli, Ylva Gerhardson
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Patent number: 9127335Abstract: The present invention relates to a cemented carbide with a homogeneous and dense microstructure of hard constituents in a well distributed binder phase based on Co and/or Ni with a porosity of AOO-BOO according to ISO 4505. The cemented carbide has a nanoporosity of less than 2.5 pores/1000 ?m2 with a size of 0.5-1 ?m. The cemented carbide is produced by using a binder phase powder with a specific surface area of 3 to 8 m2/g with a sponge shape and a grain size of the sponge shaped particles of between 1 and 5 ?m.Type: GrantFiled: April 26, 2010Date of Patent: September 8, 2015Assignee: Sandvik Intellectual Property ABInventor: Stefan Ederyd
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Publication number: 20150079416Abstract: A tool for a high temperature, high pressure apparatus includes a working layer of a first hard metal composition of material and at least one supporting layer of a second hard metal composition of material attached to the working layer. The first hard metal composition has a mean linear intercept of less than about 0.4 ?m of a binder phase. The working layer has a top and bottom surface. At least one supporting layer of a second hard metal composition of material is attached to the working layer. The at least one supporting layer includes an upper portion. An interface region is formed by the bottom surface of the working layer and the upper portion of the at least one supporting layer. The bottom surface and upper portion have a corresponding shape, wherein the bottom surface and upper portion are bonded to form the corresponding shape in the interface region.Type: ApplicationFiled: September 12, 2014Publication date: March 19, 2015Inventors: Stefan Ederyd, Erin Delmotte
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Publication number: 20140312099Abstract: A friction stir welding tool for welding of metallic plates and especially steel plates. The friction stir welding tool is made of cemented carbide comprising WC grains in a binder phase and wherein the welding tool is at least partly coated with a surface coating comprising Al2O3.Type: ApplicationFiled: November 9, 2012Publication date: October 23, 2014Inventors: Stefan Ederyd, Henrik Nordenstrom
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Publication number: 20120093597Abstract: The present invention relates to a cemented carbide with a homogeneous and dense microstructure of hard constituents in a well distributed binder phase based on Co and/or Ni with a porosity of AOO-BOO according to ISO 4505. The cemented carbide has a nanoporosity of less than 2.5 pores/1000 ?m2 with a size of 0.5-1 ?m. The cemented carbide is produced by using a binder phase powder with a specific surface area of 3 to 8 m2/g with a sponge shape and a grain size of the sponge shaped particles of between 1 and 5 ?m.Type: ApplicationFiled: April 26, 2010Publication date: April 19, 2012Inventor: Stefan Ederyd
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Patent number: 7930844Abstract: Self-sharpening wearing part having improved abrasion resistance and strength, which wearing part comprises at least a first and a second material part. The first material part is constituted by a casting body and the second material part is comprised of at least one elongated hard metal rod which is fixed in the first material part. The wearing part produces an auto-signal when the part must be changed due to wear.Type: GrantFiled: October 31, 2008Date of Patent: April 26, 2011Assignees: Combi Wear Parts AB, Vosta LMG B.V.Inventors: Per Quarfordt, Klaas Wijma, Stefan Ederyd
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Publication number: 20100251580Abstract: Self-sharpening wearing part having improved abrasion resistance and strength, which wearing part comprises at least a first and a second material part. The first material part is constituted by a casting body and the second material part is comprised of at least one elongated hard metal rod which is fixed in the first material part. The wearing part produces an auto-signal when the part must be changed due to wear.Type: ApplicationFiled: October 31, 2008Publication date: October 7, 2010Applicants: Combi Wear Parts AB, Vosta LMG B.V.Inventors: Per Quarfordt, Klaas Wijma, Stefan Ederyd
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Publication number: 20090148336Abstract: The present invention relates to a compound body comprising cemented carbide and steel with a carbon content corresponding to a carbon equivalent Ceq=wt-% C+0.3(wt-% Si+wt-% P) of from about 0.1 to about 0.85 wt-%. The body is particularly useful for earth moving tools e.g. dredge cutter heads.Type: ApplicationFiled: November 7, 2008Publication date: June 11, 2009Applicant: Sandvik Intellectual Property ABInventors: Stefan Ederyd, Per Quarfordt
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Patent number: 6609953Abstract: The present invention relates to a cemented carbide wear part with a wear surface with improved friction and wear properties. This has been obtained by providing the wear surface with a surface layer with a thickness of 0.5 &mgr;m to 25 &mgr;m, preferably 1 to 10 &mgr;m with an average WC grain size of less than 500 nm. The surface layer is obtained by lapping the wear surface with an abrasive disc for at least 10 minutes at 1000 to 3000 rpm at a pressure of 0.1 to 0.5 MPa preferably without any grinding media.Type: GrantFiled: December 19, 2002Date of Patent: August 26, 2003Assignee: Sandvik ABInventors: Stefan Ederyd, Håkan Engqvist, Niklas Axén
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Patent number: 6602312Abstract: A cemented carbide seal ring has at least one hard phase in a binder phase based on Co, Ni and Fe which results in a content Fe, Ni and Cr of less than 50 &mgr;g/l of each in a leach test with deionized water at 85° C. performed according to the requirements of British Standard BS6920: Section 2.6: 1996.Type: GrantFiled: February 8, 2002Date of Patent: August 5, 2003Assignee: Sandvik ABInventors: Stefan Ederyd, Emmanuel Pauty