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公开(公告)号：US20230064805A1
公开(公告)日：2023-03-02
申请号：US17799222
申请日：2021-02-05
Applicant: OPEN MIND TECHNOLOGIES AG
Inventor： Josef KOCH , Peter BRAMBS
Abstract: A method for manufacturing a workpiece (28) using a milling cutter configured as a conically convex milling cutter (10) is provided. The conically convex milling cutter (10) comprises a shank (12) and a conically convex milling cutter portion (14) connected at the end to the shank (12) directly or through a transition (16). The conically convex milling cutter (10) has a first and a second cutting area (24, 26), wherein the first cutting area (24) is provided on the shank (12) or/and at the transition (16), and wherein the second cutting area (26) is provided on the conically convex milling cutter portion (14). The method comprises the following steps: A) roughing a blank portion (30) using the conically convex milling cutter (10), wherein the latter is inclined relative to a current feed direction (40) at a reference point (38) of the conically convex milling cutter (10) within a first machining angle range (α1, β1) such that machining is performed with the first cutting area (24) of the conically convex milling cutter (10), wherein the second cutting area (26) remains passive during machining, and B) finishing at least a part of the rough blank portion (46) using the conically convex milling cutter (10), wherein the latter is inclined relative to the current feed direction (40) at the reference point (38) of the conically convex milling cutter (10) within a second machining angle range (α2, β2) in such a way that machining is performed with the second cutting area (26) of the conically convex milling cutter (10), wherein the second cutting area (26) engages with the blank (30).
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公开(公告)号：US20230044441A1
公开(公告)日：2023-02-09
申请号：US17790685
申请日：2021-01-18
Applicant: FANUC CORPORATION
Inventor： Daisuke UENISHI , Tomohiro OYAMADA
IPC: B23C3/18
Abstract: The purpose of the present invention is to improve the machined-surface quality of a curved surface of a workpiece without reducing the machining speed when the curved surface is subjected to removal machining. Provided is a workpiece machining method in which a rotating table on which a workpiece is placed and a tool are relatively moved along two linear movement axes orthogonal to each other, the workpiece is rotated about each of a first turning axis and a second turning axis orthogonal to each other by the rotating table, and at least one curved surface of a protruding curved surface and a recessed curved surface is subjected to removal machining. The method includes: disposing the first turning axis so as to be parallel to a first linear movement axis of the two linear movement axes, the motor load during linear movement in the first linear movement axis being relatively small; disposing the second turning axis on a plane perpendicular to the first linear movement axis; and subjecting the curved surface to removal machining along the direction of curvature while moving the workpiece along the first linear movement axis and rotating the workpiece about the second turning axis.
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公开(公告)号：US11167360B2
公开(公告)日：2021-11-09
申请号：US16975592
申请日：2019-02-27
Applicant: DAIKIN INDUSTRIES, LTD.
Inventor： Tadashi Okada
Abstract: A processed article is manufactured with a tool including a cutting blade. The cutting blade is arranged to be in contact with two machined segment surfaces so that two contact points are defined between the two machined segment surfaces and the cutting blade in a corner. A machining pitch is set in a pick feed direction of the tool at the corner to a first machining pitch for when a part of the cutting blade corresponding to a projected shape of a side surface of the cutting blade having a first curvature radius is a cutting point. A cut is performed along a feed direction in the two adjacent machined segment surfaces successively at the corner so that the tool proceeds toward the corner in one of the machined segment surfaces and away from the corner in the other one of the machined segment surfaces.
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公开(公告)号：US20210162519A1
公开(公告)日：2021-06-03
申请号：US16785649
申请日：2020-02-10
Applicant: TCT CO., LTD.
Inventor： Young Seog KWON
IPC: B23C3/18
Abstract: An impeller manufacturing apparatus includes an end mill driving unit having an end mill mounted thereon, a material driving unit configured to move a material, and a control device configured to control the end driving unit and the material driving unit to enable a side surface portion of the end mill to machine the material.
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公开(公告)号：US10913122B2
公开(公告)日：2021-02-09
申请号：US16207816
申请日：2018-12-03
Applicant: UNITED TECHNOLOGIES CORPORATION
Inventor： Eric Fromerth , Daniel J Wright , Chung Y. Wu
Abstract: A forming tool for forming leading edges of turbine blades is disclosed. In various embodiments, a forming tool may comprise a cylindrically-shaped body having a notch around the circumference of the cylindrically-shaped body. The notch may be positioned perpendicularly to a center axis of the cylindrically-shaped body. Further, the notch may have a notch contour with an upper notch contour and a lower notch contour, and where the notch contour is a relief of a selected turbine blade leading edge. The forming tool may be a grinding tool or a cutting tool. Moreover, a forming process may comprise forming, by a forming tool, a first portion of a turbine blade leading edge with a rough edge result, and forming, by a milling cutter, a second portion of the turbine blade leading edge with a rough edge result.
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Patent Agency Ranking
6.发明申请公开(公告)号：US20190126364A1
公开(公告)日：2019-05-02
申请号：US16089109
申请日：2016-09-05
Inventor： Hiroki Takagi , Yoshiki Tazawa , Yusuke Kawai
Abstract: When a closed type impeller is manufactured from one block, a rough cutting process of cutting a flow path region of a block using a rough cutting tool, and a residue-cutting process of cutting a cutting residue in the cutting process using a residue-cutting tool are executed. The residue-cutting tool has a tool main body having a blade formed on an outer periphery thereof, and a handle having the tool main body fixed to a distal end thereof. A maximum outer diameter of the tool main body is larger than a minimum outer diameter of the handle. Further, the tool main body has a rear blade directed in a direction including a tool rear side component.
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公开(公告)号：US20190070676A1
公开(公告)日：2019-03-07
申请号：US16083518
申请日：2016-03-11
Applicant: Lufthansa Technik AG
Inventor： Jan Oke Peters , Thomas Gartner , Joachim Schoen , Stefan Kuntzagk
Abstract: A device for recontouring a gas turbine blade includes: a holding device having at least one cutting tool; and a guide configured to guide the cutting tool along a leading edge of the gas turbine blade. The cutting tool is configured to remove material from the gas turbine blade using a rotational movement about an axis of rotation. The axis of rotation forms an angle together with a chord of the gas turbine blade in a profile section plane, which extends perpendicularly to a radial extent of the gas turbine blade, and the angle is less than 45°.
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公开(公告)号：US10173273B2
公开(公告)日：2019-01-08
申请号：US15032000
申请日：2015-01-22
Applicant: United Technologies Corporation
Inventor： Eric Fromerth , Daniel J. Wright , Chung Y. Wu
Abstract: A forming tool for forming leading edges of turbine blades is disclosed. In various embodiments, a forming tool may comprise a cylindrically-shaped body having a notch around the circumference of the cylindrically-shaped body. The notch may be positioned perpendicularly to a center axis of the cylindrically-shaped body. Further, the notch may have a notch contour with an upper notch contour and a lower notch contour, and where the notch contour is a relief of a selected turbine blade leading edge. The forming tool may be a grinding tool or a cutting tool. Moreover, a forming process may comprise forming, by a forming tool, a first portion of a turbine blade leading edge with a rough edge result, and forming, by a milling cutter, a second portion of the turbine blade leading edge with a rough edge result.
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公开(公告)号：US10040137B2
公开(公告)日：2018-08-07
申请号：US15032016
申请日：2015-01-15
Applicant: United Technologies Corporation
Inventor： Chung Y. Wu
Abstract: A compound fillet radii cutter may have a shaft having a cylindrical member, frustoconical cutting surface, a small radius cutting surface having an arc length of a first circle, and a large radius cutting surface having an arc length of a second circle. The frustoconical cutting surface may be disposed between the cylindrical member and the small radius cutting surface. The small radius cutting surface may be disposed between the frustoconical cutting surface and the large radius cutting surface, and a juncture of the large radius cutting surface and the small radius cutting surface may form a tangential union. In this manner, a single cutter may cut radii of various sizes or cut compound radii.
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公开(公告)号：US20170095865A1
公开(公告)日：2017-04-06
申请号：US15146617
申请日：2016-05-04
Applicant: Delcam Limited
Inventor： Ian Darren Caldicott
IPC: B23C3/18
CPC classification number: B23C3/18 , B23C2215/44 , G05B19/4099 , G05B2219/36296 , G05B2219/36301 , G05B2219/36304 , G05B2219/45147
Abstract: Systems and method relating to machining parts include a CNC system including CNC machining tools, and a computer including a processor and a computer-readable medium, wherein the computer-readable medium encodes instructions of a single NC program that, when run on the processor, causes the computer to control a selected CNC machining tool to perform operations including alternating between (i) moving the selected CNC machining tool along a semi-finishing toolpath segment using a first set of spindle speed and feed rate values to remove a next portion of rough stock material in a next region of a part being manufactured, and (ii) moving the selected CNC machining tool along a finishing toolpath segment to remove a semi-finishing thickness portion of the part in the next region, wherein the first set of spindle speed and feed rate values are different from the second set of spindle speed and feed rate values.
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