Patents by Inventor Veit Schier

Veit Schier 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).

  • Patent number: 12276016
    Abstract: A coated cutting tool includes a substrate with a coating including a (Ti,Al)N layer having an overall composition (TixAl1-x)N, 0.34?x?0.65. The (Ti,Al)N layer contains columnar (Ti,Al)N grains with an average grain size of from 10 to 100 nm. The (Ti,Al)N layer also includes lattice planes of a cubic crystal structure. The (Ti,Al)N layer shows a pattern in electron diffraction analysis, wherein there is a diffraction signal existing, which is shown as a peak (P) in an averaged radial intensity distribution profile having its maximum within a scattering vector range of from 3.2 to 4.0 nm?1, the full width half maximum (FWHM) of the peak (P) being from 0.8 to 2.0 nm?1.
    Type: Grant
    Filed: December 17, 2020
    Date of Patent: April 15, 2025
    Assignee: WALTER AG
    Inventors: Veit Schier, Wolfgang Engelhart
  • Publication number: 20250050426
    Abstract: A coated cutting tool includes a substrate including cubic boron nitride and a binder phase including TiCyN1-y, wherein 0?y?1. The binder phase contains impurities of aluminium expressed as a net intensity ratio of Al to Ti, and/or tungsten expressed as a net intensity ratio of W to Ti, and/or TiB2 expressed as a ratio of the net peak height of the TiB2 peak to the net peak height of the TiCN peak, and/or ?-alumina expressed as a ratio of the net peak height of the ?-alumina peak to the net peak height of the TiCN peak. A coating is deposited on the substrate and includes at least one nitride composed of a nitride of one or more elements belonging to group 4-6 of the periodic table of elements, or a nitride of Al and/or Si together with one or more elements belonging to group 4-6.
    Type: Application
    Filed: October 10, 2022
    Publication date: February 13, 2025
    Inventors: Wolfgang ENGELHART, Korbinian KULZER, Veit SCHIER, Torbjorn SELINDER
  • Patent number: 12188115
    Abstract: A coated cutting tool includes a substrate having a coating including a layer of aluminium nitride, which has a phase of aluminium nitride (P). The phase of aluminium nitride (P) has an electron diffraction pattern, wherein up to a scattering vector of q=8.16 nm?1 there is at least one additional reflection (R) to any reflection found in the cubic and hexagonal aluminium nitride diffraction patterns.
    Type: Grant
    Filed: May 5, 2020
    Date of Patent: January 7, 2025
    Assignee: Walter AG
    Inventors: Veit Schier, Johannes Kümmel, Wolfgang Engelhart
  • Patent number: 12037675
    Abstract: A method for producing a coated cutting tool includes depositing a 0.5-10 ?m nitride layer, which is a nitride of one or more of Ti, Zr, Hf, V, Ta, Nb, Si, Cr and Al, onto a substrate followed by depositing Al or Al+Me, further followed by depositing a 0.1-5 ?m oxide layer being an (AlaMe1-a)2O3 layer, 0.05?a?1, wherein Me is one or more of Ti, Mg, Ag, Zr, Si, V, Fe, Hf, B and Cr, said layers being deposited by magnetron sputtering. Also, a coated cutting tool including a substrate with a coating having the nitride layer and oxide layer. The coating has inclusions of (Al,Me,O) in the oxide layer at the interface between the nitride layer and the oxide layer, and/or a layer of (Al,Me,O) situated in between the nitride layer and the oxide layer.
    Type: Grant
    Filed: May 22, 2018
    Date of Patent: July 16, 2024
    Assignee: Walter AG
    Inventors: Veit Schier, Dominic Diechle
  • Publication number: 20240207945
    Abstract: A coated cutting tool has at least one rake face and at least one flank face and a cutting edge therebetween. The coated cutting tool includes a substrate and a coating. The coating includes a (Ti,Al)N layer. The (Ti,Al)N layer is either a single monolithic layer or a multilayer of two or more alternating (Ti,Al)N sub-layer types having different compositions. The (Ti,Al)N layer has an overall atomic ratio Al/(Ti+Al) of >0.67 but ?0.85, wherein the (Ti,Al)N layer shows a plane strain modulus distribution along a direction perpendicular to a cutting edge on the rake face and/or the flank face. The plane strain modulus at a point at a distance of 0.5 mm from a point at the cutting edge is more than 85% of the plane strain modulus at the cutting edge, with the plane strain modulus at the cutting edge being ?450 GPa.
    Type: Application
    Filed: April 29, 2022
    Publication date: June 27, 2024
    Inventors: Jan Philipp LIEBIG, Veit SCHIER
  • Publication number: 20240207944
    Abstract: A coated cutting tool having at least one rake face and at least one flank face and a cutting edge therebetween includes a substrate and a coating. The coating has a (Ti,Al)N layer, the (Ti,Al)N layer having an overall atomic ratio Al/(Ti+Al) of >0.67 and ?0.85, wherein the (Ti,Al)N layer shows a distribution of 111 misorientation angles, the 111 misorientation angle being the angle between a normal vector to the surface of the (Ti,Al)N layer and the <111>direction that is closest to the normal vector to the surface of the (Ti,Al)N layer. A cumulative frequency distribution of the 111 misorientation angles is such that—?60% of the 111 misorientation angles is less than 10 degrees.
    Type: Application
    Filed: April 29, 2022
    Publication date: June 27, 2024
    Inventors: Jan Philipp LIEBIG, Wolfgang ENGELHART, Veit SCHIER
  • Publication number: 20240024957
    Abstract: A coated cutting tool includes a substrate and a coating. The coating has a (Ti,Al,Si)N layer, which has a periodical change in contents of the elements Ti, Al, and Si, over the thickness of the (Ti,Al,Si)N layer, between a minimum content and a maximum content of each element. The average minimum content of Ti is from 14 to 18 at. % and the average maximum content of Ti is from 18 to 22 at. %. The average minimum content of Al is from 18 to 22 at. % and the average maximum content of Al is from 24 to 28 at. %. The average minimum content of Si is from 0 to 2 at. % and the average maximum content of Si is from 1 to 5 at. %. The remaining content in the (Ti,Al,Si)N layer is a noble gas in an average content of from 0.1 to 5 at. % and the element N.
    Type: Application
    Filed: December 2, 2021
    Publication date: January 25, 2024
    Inventors: Veit SCHIER, Wolfgang ENGELHART
  • Publication number: 20230063115
    Abstract: A coated cutting tool includes a substrate of cemented carbide, cubic boron nitride (cBN) or cermet containing tungsten carbide hard grains and a tungsten carbide (WC) layer deposited immediately on top of the substrate surface. The tungsten carbide (WC) layer is a mixture or combination of hexagonal tungsten mono-carbide ?-WC phase and cubic tungsten mono-carbide ?-WC phase and unavoidable impurities.
    Type: Application
    Filed: January 21, 2021
    Publication date: March 2, 2023
    Inventor: Veit SCHIER
  • Publication number: 20230033516
    Abstract: A coated cutting tool and a process for the production thereof id provided. The coated cutting tool consists of a substrate body of WC-Co based cemented carbide and a coating, the coating including a first (Ti,Al)N multilayer, a first gamma-aluminium oxide layer, and a set of alternating second (Ti,Al)N multilayers and second gamma-aluminium oxide layers.
    Type: Application
    Filed: December 17, 2020
    Publication date: February 2, 2023
    Inventors: Wolfgang ENGELHART, Veit SCHIER, Sven MAJCHRZAK
  • Publication number: 20230028083
    Abstract: A coated cutting tool includes a substrate with a coating including a (Ti,Al)N layer having an overall composition (TixAl1-x)N, 0.34?x?0.65. The (Ti,Al)N layer contains columnar (Ti,Al)N grains with an average grain size of from 10 to 100 nm. The (Ti,Al)N layer also includes lattice planes of a cubic crystal structure. The (Ti,Al)N layer shows a pattern in electron diffraction analysis, wherein there is a diffraction signal existing, which is shown as a peak (P) in an averaged radial intensity distribution profile having its maximum within a scattering vector range of from 3.2 to 4.0 nm?1, the full width half maximum (FWHM) of the peak (P) being from 0.8 to 2.0 nm?1.
    Type: Application
    Filed: December 17, 2020
    Publication date: January 26, 2023
    Inventors: Veit SCHIER, Wolfgang ENGELHART
  • Publication number: 20220259715
    Abstract: The present coated cutting tool includes a substrate with a coating including a layer of TixAlyCrzSivN, where x is 0.30-0.50, y is 0.25-0.45, z is 0.05-0.15, and v is 0.10-0.20, x+y+z+v=1. The layer has a cubic phase with a distribution of unit cell lengths within the range 3.96 to 4.22 ? for the cubic cell. The unit cell length range 3.96 to 4.22 ? includes more than one intensity maximum in an averaged radial intensity profile of an electron diffraction pattern.
    Type: Application
    Filed: June 24, 2020
    Publication date: August 18, 2022
    Inventors: Wolfgang ENGELHART, Veit SCHIER
  • Publication number: 20220213587
    Abstract: A coated cutting tool includes a substrate having a coating including a layer of aluminium nitride, which has a phase of aluminium nitride (P). The phase of aluminium nitride (P) has an electron diffraction pattern, wherein up to a scattering vector of q=8.16 nm?1 there is at least one additional reflection (R) to any reflection found in the cubic and hexagonal aluminium nitride diffraction patterns.
    Type: Application
    Filed: May 5, 2020
    Publication date: July 7, 2022
    Inventors: Veit SCHIER, Johannes KÜMMEL, Wolfgang ENGELHART
  • Patent number: 11326248
    Abstract: A coated cutting tool including a substrate and a single layer or multi-layer hard material coating is provided. The substrate is selected from cemented carbide, cermet, ceramics, cubic boron nitride (cBN), polycrystalline diamond, steel or high-speed steel. The hard material coating includes at least one layer of gamma-Al2O3, exhibiting particularly high hardness and reduced Young's modulus. The gamma-Al2O3 layer of the coated cutting tool is obtainable by means of a reactive magnetron sputtering process using at least one Al target, wherein the deposition is carried out using a reaction gas composition of argon (Ar) and oxygen (O2) at a total reaction gas pressure within the range from at least 1 Pa to at most 5 Pa, at an O2 partial pressure within the range from 0.001 Pa to 0.1 Pa, and at a temperature within the range from 400° C. to 600° C.
    Type: Grant
    Filed: November 7, 2018
    Date of Patent: May 10, 2022
    Assignee: WALTER AG
    Inventors: Dominic Diechle, Veit Schier
  • Patent number: 11313028
    Abstract: A coated cutting tool and a process for the production thereof is provided. The coated cutting tool includes a substrate and a hard material coating, the substrate being selected from cemented carbide, cermet, ceramics, cubic boron nitride, polycrystalline diamond or high-speed steel. The hard material coating includes a (Ti,Al)N layer stack of alternately stacked (Ti,Al)N sub-layers. The layer stack has an overall atomic ratio of Ti:Al within the (Ti,Al)N layer stack within the range from 0.33:0.67 to 0.67:0.33, a total thickness of the (Ti,Al)N layer stack within the range from 1 ?m to 20 ?m, each of the individual (Ti,Al)N sub-layers within the (Ti,Al)N layer stack of alternately stacked (Ti,Al)N sub-layers having a thickness within the range from 0.5 nm to 50 nm, each of the individual (Ti,Al)N sub-layers within the (Ti,Al)N layer stack of alternately stacked (Ti,Al)N sub-layers being different in respect of the atomic ratio Ti:Al than an immediately adjacent (Ti,Al)N sub-layer, and other characteristics.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: April 26, 2022
    Assignee: Walter AG
    Inventors: Veit Schier, Wolfgang Engelhart
  • Patent number: 11247275
    Abstract: A cutting tool includes a base body and a coating applied thereto. For providing a cutting tool, having both a hard coating that also exhibits fracture toughness, the coating includes at least one oxide layer deposited in the PVD process, consisting of at least 10 alternating single coats of Al2O3 and (Alx, Me1-x)2O3, where 0<x<1, wherein Me is selected from one or more of the group of Si, Ti, V, Zr, Mg, Fe, B, Gd, La and Cr.
    Type: Grant
    Filed: February 16, 2017
    Date of Patent: February 15, 2022
    Assignee: WALTER AG
    Inventors: Veit Schier, Dominic Diechle
  • Publication number: 20210388483
    Abstract: A method for producing a coated cutting tool includes depositing on every flank face and every rake face of the cutting tool an Al2O3 layer by a HIPIMS process during two-fold or three-fold rotation of the substrates, at a substrate temperature ?350° C. but <600° C., the deposited Al2O3 layer including ?-Al2O3.
    Type: Application
    Filed: November 6, 2019
    Publication date: December 16, 2021
    Inventors: Veit SCHIER, Dominic DIECHLE
  • Patent number: 11104987
    Abstract: A coated cutting tool includes a substrate of cemented carbide, cermet, cBN, ceramics or HSS and a coating of a nitride layer, which is a High Power Impulse Magnetron Sputtering (HIPIMS) deposited layer of a nitride of one or more of Ti, Zr, Hf, V, Ta, Nb, Cr, Si and Al, and a HIPIMS-deposited oxide layer being an (AlaMe1?a)2O3 layer, 0.05?a?1, wherein Me is one or more of Ti, Mg, Ag, Zr, Si, V, Fe, Hf, B and Cr. The oxide layer is situated above the nitride layer. Also, a method is disclosed for producing a coated cutting tool having the nitride layer and oxide layer, the nitride layer and the oxide layer being deposited by a HIPIMS process.
    Type: Grant
    Filed: May 22, 2018
    Date of Patent: August 31, 2021
    Assignee: WALTER AG
    Inventors: Veit Schier, Ulrich Albers, Dominic Diechle
  • Publication number: 20210213538
    Abstract: A cutting tool includes a base body and a coating applied thereto. For providing a cutting tool, having both a hard coating that also exhibits fracture toughness, the coating includes at least one oxide layer deposited in the PVD process, consisting of at least 10 alternating single coats of Al2O3 and (Alx,Me1-x)2O3, where 0<x<1, wherein Me is selected from one or more of the group of Si, Ti, V, Zr, Mg, Fe, B, Gd, La and Cr.
    Type: Application
    Filed: February 16, 2017
    Publication date: July 15, 2021
    Inventors: Veit SCHIER, Dominic DIECHLE
  • Publication number: 20210189548
    Abstract: A coated cutting tool including a substrate and a single layer or multi-layer hard material coating is provided. The substrate is selected from cemented carbide, cermet, ceramics, cubic boron nitride (cBN), polycrystalline diamond, steel or high-speed steel. The hard material coating includes at least one layer of gamma-Al2O3, exhibiting particularly high hardness and reduced Young's modulus. The gamma-Al2O3 layer of the coated cutting tool is obtainable by means of a reactive magnetron sputtering process using at least one Al target, wherein the deposition is carried out using a reaction gas composition of argon (Ar) and oxygen (O2) at a total reaction gas pressure within the range from at least 1 Pa to at most 5 Pa, at an O2 partial pressure within the range from 0.001 Pa to 0.1 Pa, and at a temperature within the range from 400° C. to 600° C.
    Type: Application
    Filed: November 7, 2018
    Publication date: June 24, 2021
    Inventors: Dominic DIECHLE, Veit SCHIER
  • Publication number: 20200255931
    Abstract: A coated cutting tool and a process for the production thereof is provided. The coated cutting tool includes a substrate and a hard material coating, the substrate being selected from cemented carbide, cermet, ceramics, cubic boron nitride, polycrystalline diamond or high-speed steel. The hard material coating includes a (Ti,Al)N layer stack of alternately stacked (Ti,Al)N sub-layers. The layer stack has an overall atomic ratio of Ti:Al within the (Ti,Al)N layer stack within the range from 0.33:0.67 to 0.67:0.33, a total thickness of the (Ti,Al)N layer stack within the range from 1 ?m to 20 ?m, each of the individual (Ti,Al)N sub-layers within the (Ti,Al)N layer stack of alternately stacked (Ti,Al)N sub-layers having a thickness within the range from 0.5 nm to 50 nm, each of the individual (Ti,Al)N sub-layers within the (Ti,Al)N layer stack of alternately stacked (Ti,Al)N sub-layers being different in respect of the atomic ratio Ti:Al than an immediately adjacent (Ti,Al)N sub-layer, and other characteristics.
    Type: Application
    Filed: August 31, 2018
    Publication date: August 13, 2020
    Inventors: Veit SCHIER, Wolfgang ENGELHART