| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 41 | CUTTING INSERT AND INTERCHANGEABLE CUTTING EDGE-TYPE CUTTING TOOL | EP12858671.6 | 2012-10-31 | EP2792441A1 | 2014-10-22 | TAKAHASHI Hidebumi |
A cutting insert includes an insert body 1 having a polygonal plate shape. Rake faces 3 are formed on polygonal surfaces of the insert body 1, and flank faces 4 are formed on lateral faces of the insert body 1 arranged around the polygonal surfaces. Main cutting edges 5 are formed on side ridges of the polygonal surfaces at intersecting ridgelines between the rake faces 3 and the flank faces 4. Each main cutting edge 5 extends between two corners adjacent to each other in a circumferential direction of the polygonal surface among corners of the polygonal surface. When seen from a direction opposing the rake face 3, one end portion 5a of the main cutting edge 5 that stretches to one corner of the two corners has a convexly curved shape, and the other end portion 5b of the main cutting edge 5 that stretches to the other corner of the two corners has a concavely curved shape. |
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| 42 | CUTTING INSERT AND EXCHANGEABLE BLADE-TYPE ROTARY CUTTING TOOL | EP15850041 | 2015-10-15 | EP3208018A4 | 2018-07-04 | KUMOI HARUKI |
| A cutting insert (1) of the present invention comprises a first end surface (2) and a second end surface (3) which are opposed to each other and a peripheral side surface (4) connecting the first end surface (2) and the second end surface (3), and has a central axis (O) defined so as to penetrate these end surfaces. A major cutting edge (8) and a minor cutting edge (10), which are connected via a corner cutting edge (9), are formed along an intersecting edge between the first end surface (2) and the peripheral side surface (4). The peripheral side surface has a first side surface part (4a) related to the major cutting edge and a second side surface part (4b) related to the minor cutting edge. The first side surface part (4a) gradually extends outward from the cutting insert, heading from the first end surface to the second end surface. When a second virtual plane (L1), which is substantially perpendicular to the central axis (O) and passes through the major cutting edge (8), is defined, an inclined part (3a), on a back side of the cutting edge, of the second end surface (3) is inclined so as to become more distant from the second virtual plane (L1), heading from the first side surface part (4a) to the central axis (O). | ||||||
| 43 | A milling insert and a milling tool | EP15153154.8 | 2015-01-30 | EP3050655A1 | 2016-08-03 | Roman, Stefan |
A milling insert (100) for shoulder milling having a positive basic shape and comprising an upper side (101) comprising a rake surface (103), a lower side (102) comprising a planar bottom surface (105), a side surface (104) extending around the periphery of the milling insert, and a cutting edge (106) formed between the side surface and the rake surface. The cutting edge comprises at least a major cutting edge portion (107a, 107b), a corner radius cutting edge portion (108a, 108b), a ramping cutting edge portion (110a, 110b), and a surface wiping cutting edge portion (109a, 109b). The side surface comprises an upper set of primary clearance surfaces (111b) and a lower set of secondary clearance surfaces (115b) comprising a plurality of planar secondary clearance surfaces (115b), wherein the upper set of primary clearance surfaces forms an overhang protruding with respect to the secondary clearance surfaces and extending around the entire upper periphery of the milling insert.
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| 44 | SCHNEIDEINSATZ UND WERKZEUG ZUR SPANENDEN BEARBEITUNG EINES WERKSTÜCKS | EP13724847.2 | 2013-05-24 | EP2897752A1 | 2015-07-29 | STARK, Christian |
| The invention relates to a cutting insert for a workpiece machining tool, comprising: two identical opposite base surfaces (14a, b), at least a portion of which runs perpendicular to a z axis of the cutting insert (10, 20), two identical opposite main lateral surfaces (16a, b) which extend between the two base surfaces (14a, b) and at least a portion of each of which runs perpendicular to an x axis of the cutting insert (10, 20), and two identical opposite secondary lateral surfaces (18a, b) which also extend between the two base surfaces (14a, b) and at least a portion of each of which runs perpendicular to a y axis of the cutting insert (10, 20), the x axis, y axis, and z axis being mutually perpendicular main axes of the cutting insert (10, 20). A main blade (12a-d) is provided between each base surface (14a, b) and each main lateral surface (16a, b), and each main lateral surface (16a, b) has two diagonally opposite first partial blades (26a-d), each of which adjoins a first end (28a-d) of the respective main blade (12a-d). The main blades (12a-d) and the first partial blades (26a-d) of each main lateral surface (16a, b) each lie in a blade plane that runs perpendicular to the x axis. Finally, the first partial blades (26a-d) are each formed on a first projection (24a-d) that is provided on the secondary lateral surfaces (18a, b) and defines a first clearance angle (α). | ||||||
