Patents by Inventor Andreas Wuerfels
Andreas Wuerfels 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: 11806796Abstract: A cutting tool includes a toolholder and a cutting insert. The toolholder includes a toolholder pocket having a pocket wall including a first anti-rotation engagement surface and a second anti-rotation engagement surface. The cutting insert is mounted in the toolholder pocket. The cutting insert includes: an upper surface, the upper surface having a plurality circular sinusoidal cutting edges; a lower surface opposite the upper surface; and an exterior sidewall between the upper surface and the lower surface. The first anti-rotation engagement surface and the second anti-rotation engagement surface of the pocket wall of the toolholder engage the exterior sidewall of the cutting insert to resist rotation of cutting insert.Type: GrantFiled: March 15, 2021Date of Patent: November 7, 2023Assignee: KENNAMETAL INC.Inventors: Xiangdong D. Fang, Qiang Wu, Jean-luc Dufour, Andreas Wuerfels
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Publication number: 20220288705Abstract: A cutting tool includes a toolholder and a cutting insert. The toolholder includes a toolholder pocket having a pocket wall including a first anti-rotation engagement surface and a second anti-rotation engagement surface. The cutting insert is mounted in the toolholder pocket. The cutting insert includes: an upper surface, the upper surface having a plurality circular sinusoidal cutting edges; a lower surface opposite the upper surface; and an exterior sidewall between the upper surface and the lower surface. The first anti-rotation engagement surface and the second anti-rotation engagement surface of the pocket wall of the toolholder engage the exterior sidewall of the cutting insert to resist rotation of cutting insert.Type: ApplicationFiled: March 15, 2021Publication date: September 15, 2022Inventors: Xiangdong D. Fang, Qiang Wu, Jean-luc Dufour, Andreas Wuerfels
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Patent number: 11325196Abstract: A double-sided, polygonal cutting insert includes a first surface and a second surface opposite the first surface. A plurality of side surfaces extend between the first surface and the second surface. A plurality of primary concave cutting edges are formed at an intersection between the plurality of side surfaces and the first and second surfaces, and a plurality of convex wiper edges are formed at an intersection between the plurality of side surfaces and the first and second surfaces. Each wiper edge has a step extending radially outward from a respective side surface. The cutting insert is mounted in a cutting tool such that the primary cutting edge and a wiper edge contact a workpiece to produce a high-quality surface finish on the workpiece.Type: GrantFiled: June 29, 2020Date of Patent: May 10, 2022Assignee: KENNAMETAL INDIA LIMITEDInventors: Andreas Wuerfels, Padmakumar Muthuswamy, Bharath Arumugam
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Publication number: 20210001408Abstract: A double-sided, polygonal cutting insert includes a first surface and a second surface opposite the first surface. A plurality of side surfaces extend between the first surface and the second surface. A plurality of primary concave cutting edges are formed at an intersection between the plurality of side surfaces and the first and second surfaces, and a plurality of convex wiper edges are formed at an intersection between the plurality of side surfaces and the first and second surfaces. Each wiper edge has a step extending radially outward from a respective side surface. The cutting insert is mounted in a cutting tool such that the primary cutting edge and a wiper edge contact a workpiece to produce a high-quality surface finish on the workpiece.Type: ApplicationFiled: June 30, 2020Publication date: January 7, 2021Inventors: Bharath ARUMUGAM, Padmakumar MUTHUSWAMY, Andreas WÜRFELS
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Publication number: 20210001417Abstract: A double-sided, polygonal cutting insert includes a first surface and a second surface opposite the first surface. A plurality of side surfaces extend between the first surface and the second surface. A plurality of primary concave cutting edges are formed at an intersection between the plurality of side surfaces and the first and second surfaces, and a plurality of convex wiper edges are formed at an intersection between the plurality of side surfaces and the first and second surfaces. Each wiper edge has a step extending radially outward from a respective side surface. The cutting insert is mounted in a cutting tool such that the primary cutting edge and a wiper edge contact a workpiece to produce a high-quality surface finish on the workpiece.Type: ApplicationFiled: June 29, 2020Publication date: January 7, 2021Applicant: Kennametal India LimitedInventors: Andreas Wuerfels, Padmakumar Muthuswamy, Bharath Arumugam
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Patent number: 8894331Abstract: A tool includes a parent body (12) and at least two cutting inserts (14) fastened directly or indirectly to the parent body (12). A central clamping device (30) is configured to clamp the cutting inserts (14) in an oriented position relative to the parent body (12). An assembly includes the tool (10) and a jig (32), which can accommodate the tool (10) in such a way that the cutting insert (14) is located in a desired position on the tool (10) and can be clamped in the desired position by actuating the clamping device (30). A method for fastening at least one cutting insert (14) to the parent body (12) includes fitting the parent body (12) with the cutting insert (14); arranging the parent body (12) in a jig (32); bringing the cutting insert (14) into a desired position; and clamping the cutting insert (14) in the desired position.Type: GrantFiled: January 27, 2011Date of Patent: November 25, 2014Assignee: Kennametal Inc.Inventors: Andreas Wuerfels, Dirk Kammermeier
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Publication number: 20120321399Abstract: A tool includes a parent body (12) and at least two cutting inserts (14) fastened directly or indirectly to the parent body (12). A central clamping device (30) is configured to clamp the cutting inserts (14) in an oriented position relative to the parent body (12). An assembly includes the tool (10) and a jig (32), which can accommodate the tool (10) in such a way that the cutting insert (14) is located in a desired position on the tool (10) and can be clamped in the desired position by actuating the clamping device (30). A method for fastening at least one cutting insert (14) to the parent body (12) includes fitting the parent body (12) with the cutting insert (14); arranging the parent body (12) in a jig (32); bringing the cutting insert (14) into a desired position; and clamping the cutting insert (14) in the desired position.Type: ApplicationFiled: January 27, 2011Publication date: December 20, 2012Applicant: KENNAMETAL INC.Inventors: Andreas Wuerfels, Dirk Kammermeier
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Patent number: 7367755Abstract: A cutting element for the machining of metallic workpieces has a body formed with an upper and a lower face of which at least one is designed as a mounting face, and a side face that connects the upper and the lower faces, that is perpendicular thereto, and that together with the upper and lower faces forms cutting edges usable for machining. Each cutting edge has two parallel long straight cutting-edge sections and two parallel short straight cutting-edge sections. Cutting corners connect respective adjacent long and short cutting-edge sections. One part of each long straight cutting-edge section is recessed parallel to the side faces by a distance in relation to the adjacent edge sections as well as indented perpendicular to the side faces by a distance.Type: GrantFiled: September 24, 2004Date of Patent: May 6, 2008Assignee: Kennametal Widia Produktions GmbH & Co. KGInventors: Andreas Würfels, Günter Ruther
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Publication number: 20070034063Abstract: The invention relates to a cutting element for machining metallic workpieces, especially wheelsets, said element comprising an upper surface and a lower surface, at least one, preferably both, of said surfaces being embodied as faces, and a respectively perpendicular lateral surface for connecting the upper surface and the lower surface and forming, together with a face, cutting edges that can be used for machining and are provided with cutting corners connecting respectively parallel long, linear cutting edge sections, respectively parallel short, linear cutting edge sections, and respectively adjacent long and short cutting edge sections. According to the invention, at least part of the long linear partial edge sections is lowered by a measure in relation to the adjacent edge sections and meshes with a measure thereof.Type: ApplicationFiled: September 24, 2004Publication date: February 15, 2007Inventors: Andreas Würfels, Gunter Ruther
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Patent number: D692036Type: GrantFiled: March 16, 2011Date of Patent: October 22, 2013Assignee: Kennametal Inc.Inventors: Sebastian Schleicher, Andreas Wuerfels
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Patent number: D832319Type: GrantFiled: February 15, 2017Date of Patent: October 30, 2018Assignee: KENNAMETAL INC.Inventors: Padmakumar Muthuswamy, Andreas Wuerfels, Sivapapachari Chennuri, Shivanna Muniyappa, Bharath Kumar Arumugam