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公开(公告)号：US09446460B2
公开(公告)日：2016-09-20
申请号：US14336053
申请日：2014-07-21
Applicant: Kennametal Inc.
Inventor： Gilles Festeau , Jean-Luc Dufour , X. Daniel Fang , David J. Wills
CPC classification number: B23C5/207 , B23C5/06 , B23C5/202 , B23C5/205 , B23C2200/125 , B23C2200/203 , B23C2220/44 , Y10T407/191 , Y10T407/1924 , Y10T407/2274 , Y10T407/23 , Y10T407/235 , Y10T409/303752
Abstract: A cutting insert for milling operations, such as, face milling, slot milling, plunge milling, and ramping operations. The cutting insert exhibits a combination of favorable cutting edge strength, and unique cutting edge geometry, thus, allowing milling operations at relatively high feed rates. The cutting insert includes at least four cutting edges, wherein at least one of the cutting edges is a convex cutting edge. Certain embodiments of square cutting inserts will have four convex cutting edges which may be connected by nose corners. The convex cutting edge may comprise at least one of a circular arc, a portion of an ellipse, a portion of a parabola, a multi-segment spline curve, a straight line, or combinations of these. Wherein the convex cutting edge comprises a circular arc, the circular arc may have a radius greater than or equal to two times a radius of the largest circle that may be inscribed on the top surface.
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Patent Agency Ranking
公开(公告)号：US11897043B2
公开(公告)日：2024-02-13
申请号：US17566916
申请日：2021-12-31
Applicant: Kennametal Inc.
Inventor： Jean Luc D. Dufour , Gilles Festeau
CPC classification number: B23C5/202 , B23C5/06 , B23C2200/0455 , B23C2200/125 , B23C2200/28
Abstract: Cutting inserts are disclosed having four cutting edges and milling tools comprising the cutting inserts installed in pockets on a rotatable cutting tool holder. The cutting inserts comprise a front face, a rear face and four side faces extending between the front and rear faces. A cutting edge is provided at the intersection of the front face and each side face. Each cutting edge comprises a plurality of cutting edge segments, including a facet cutting edge that forms the flat surface of a workpiece being milled, and a straight lead cutting edge that extends at an angle away from the facet cutting edge. The lead cutting edge angle is selected to provide effective milling of the workpiece at entry. The cutting inserts have side seating surfaces that allow the inserts to be more stably supported in cutting insert pockets.
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公开(公告)号：US08821080B2
公开(公告)日：2014-09-02
申请号：US13721335
申请日：2012-12-20
Applicant: Kennametal Inc.
Inventor： Gilles Festeau , Jean-Luc Dufour , X. Daniel Fang , David J. Wills
CPC classification number: B23C5/207 , B23C5/06 , B23C5/202 , B23C5/205 , B23C2200/125 , B23C2200/203 , B23C2220/44 , Y10T407/191 , Y10T407/1924 , Y10T407/2274 , Y10T407/23 , Y10T407/235 , Y10T409/303752
Abstract: A cutting insert for milling operations, such as, face milling, slot milling, plunge milling, and ramping operations. The cutting insert exhibits a combination of favorable cutting edge strength, and unique cutting edge geometry, thus, allowing milling operations at relatively high feed rates. The cutting insert includes at least four cutting edges, wherein at least one of the cutting edges is a convex cutting edge. Certain embodiments of square cutting inserts will have four convex cutting edges which may be connected by nose corners. The convex cutting edge may comprise at least one of a circular arc, a portion of an ellipse, a portion of a parabola, a multi-segment spline curve, a straight line, or combinations of these. Wherein the convex cutting edge comprises a circular arc, the circular arc may have a radius greater than or equal to two times a radius of the largest circle that may be inscribed on the top surface.
Abstract translation: 用于铣削操作的切削刀片，例如铣削，铣槽，铣削和斜坡操作。 切削刀片具有有利的切削刃强度和独特的切削刃几何形状的组合，从而允许以相对高的进给速率进行铣削操作。 所述切削刀片包括至少四个切削刃，其中所述切削刃中的至少一个是凸形切削刃。 方形切削刀片的某些实施例将具有可以通过鼻角连接的四个凸形切削刃。 凸形切削刃可以包括圆弧，椭圆的一部分，抛物线的一部分，多段花键曲线，直线或它们的组合中的至少一个。 其中，所述凸形切削刃包括圆弧，所述圆弧的半径可以大于或等于可能刻在所述顶面上的最大圆的半径的两倍。
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公开(公告)号：USD1042566S1
公开(公告)日：2024-09-17
申请号：US29821682
申请日：2021-12-31
Applicant: Kennametal Inc.
Designer： Jean Luc D. Dufour , Gilles Festeau
Abstract: FIG. 1 is a top perspective view of the cutting insert showing our new design;
FIG. 2 is a bottom perspective view thereof;
FIG. 3 is a top view thereof;
FIG. 4 is a bottom view thereof; and,
FIG. 5 is a front view thereof, with left side, right side, and rear views being identical to the front view.
The cutting insert is rotationally symmetrical 90 degrees around a central axis thereof.
The broken lines depict portions of the cutting insert in which the design is embodied and form no part of the claimed design.-
公开(公告)号：US20230211424A1
公开(公告)日：2023-07-06
申请号：US17566916
申请日：2021-12-31
Applicant: Kennametal Inc.
Inventor： Jean Luc D. Dufour , Gilles Festeau
CPC classification number: B23C5/202 , B23C5/06 , B23C2200/0455 , B23C2200/28
Abstract: Cutting inserts are disclosed having four cutting edges and milling tools comprising the cutting inserts installed in pockets on a rotatable cutting tool holder. The cutting inserts comprise a front face, a rear face and four side faces extending between the front and rear faces. A cutting edge is provided at the intersection of the front face and each side face. Each cutting edge comprises a plurality of cutting edge segments, including a facet cutting edge that forms the flat surface of a workpiece being milled, and a straight lead cutting edge that extends at an angle away from the facet cutting edge. The lead cutting edge angle is selected to provide effective milling of the workpiece at entry. The cutting inserts have side seating surfaces that allow the inserts to be more stably supported in cutting insert pockets.
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公开(公告)号：US20140341670A1
公开(公告)日：2014-11-20
申请号：US14336053
申请日：2014-07-21
Applicant: Kennametal Inc.
Inventor： Gilles Festeau , Jean-Luc Dufour , X.Daniel Fang , David J. Wills
IPC: B23C5/20
CPC classification number: B23C5/207 , B23C5/06 , B23C5/202 , B23C5/205 , B23C2200/125 , B23C2200/203 , B23C2220/44 , Y10T407/191 , Y10T407/1924 , Y10T407/2274 , Y10T407/23 , Y10T407/235 , Y10T409/303752
Abstract: A cutting insert for milling operations, such as, face milling, slot milling, plunge milling, and ramping operations. The cutting insert exhibits a combination of favorable cutting edge strength, and unique cutting edge geometry, thus, allowing milling operations at relatively high feed rates. The cutting insert includes at least four cutting edges, wherein at least one of the cutting edges is a convex cutting edge. Certain embodiments of square cutting inserts will have four convex cutting edges which may be connected by nose corners. The convex cutting edge may comprise at least one of a circular arc, a portion of an ellipse, a portion of a parabola, a multi-segment spline curve, a straight line, or combinations of these. Wherein the convex cutting edge comprises a circular arc, the circular arc may have a radius greater than or equal to two times a radius of the largest circle that may be inscribed on the top surface.
Abstract translation: 用于铣削操作的切削刀片，例如铣削，铣槽，铣削和斜坡操作。 切削刀片具有有利的切削刃强度和独特的切削刃几何形状的组合，从而允许以相对高的进给速率进行铣削加工。 所述切削刀片包括至少四个切削刃，其中所述切削刃中的至少一个是凸形切削刃。 方形切削刀片的某些实施例将具有可以通过鼻角连接的四个凸形切削刃。 凸形切削刃可以包括圆弧，椭圆的一部分，抛物线的一部分，多段花键曲线，直线或它们的组合中的至少一个。 其中，所述凸形切削刃包括圆弧，所述圆弧的半径可以大于或等于可能刻在所述顶面上的最大圆的半径的两倍。
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