-
公开(公告)号：EP4360801A1
公开(公告)日：2024-05-01
申请号：EP22203267.4
申请日：2022-10-24
申请人： WALTER AG
发明人： Rogalla, Siegfried , Hisge, Hendrik
CPC分类号： B23P15/28 , B23P15/32 , B23P15/34 , B23C5/10 , B23B51/02 , B33Y80/00 , B22F2005/00120130101 , B22F2005/00420130101 , B22F10/10 , B33Y10/00 , B23C5/282 , B23C5/28 , B23C5/006 , B23C2222/2820130101 , B23B51/0686 , B23B2222/2820130101
摘要： The present invention relates to a blank for a rotary metal cutting tool, wherein the blank comprises an elongate, one-piece body having a front end (1), a rear end (2) and a longitudinal axis (3) extending from the front end (1) to the rear end (2). The body comprises a head section (4), a shaft section (6) and a chip flute section (5), which has a maximal diameter (7). The chip flute section (5) comprises a longitudinally extending wall (8) surrounding a longitudinally extending internal cavity (9), which wall (8) has an internal wall surface (10) defining the cavity (9) and an external wall surface. The external wall surface defines a chip flute surface (11). As seen in a cross section perpendicular to the longitudinal axis (3), the wall (8) has a wall thickness (14) measured from the external wall surface to the internal wall surface (10). As seen in cross sections in positions along a major length of the chip flute section (5), circumferentially along one portion of the chip flute surface (11), the wall thickness (14) is constant and at most 25% of the maximal diameter (7) of the chip flute section (5) including a finishing allowance.
-
公开(公告)号：EP3393705B1
公开(公告)日：2024-09-11
申请号：EP16834015.6
申请日：2016-12-14
-
公开(公告)号：EP4410461A1
公开(公告)日：2024-08-07
申请号：EP24153347.0
申请日：2024-01-23
申请人： Subaru Corporation
发明人： NAKAMOTO, Rei , YOKONO, Tsukasa , MASE, Aoi , SAITO, Shunsuke
CPC分类号： B23B51/02 , B23B2251/1820130101 , B23B2251/1420130101 , B23B2251/0420130101 , B23B35/00 , B23B51/063 , B23B2222/8820130101 , B23B2226/31520130101 , B23B2251/04720220101 , B23B2251/12220130101 , B23B2251/18220220101 , B23B2251/44320130101 , B23B37/00 , B23B2222/2820130101
摘要： The drill (1) has two to four cutting edges (2) each made of cemented carbide or polycrystalline diamond. Helical flutes (5) are formed alternately with the cutting edges (2). X-shaped thinning has been applied to the cutting edges (2). A rake angle (θ2) of the cutting edges (2) is not less than 30° and not more than 40°. A clearance angle (θ3) of the cutting edges (2) is more than 0° and not more than 8°. The cutting edges (2) each has a honed face (8) by chamfer honing. A honing angle of the honed face (8) is not less than -3° and not more than 8°.
-
公开(公告)号：EP4395953A1
公开(公告)日：2024-07-10
申请号：EP22769698.6
申请日：2022-08-30
IPC分类号： B23B29/02
CPC分类号： B23B27/002 , B23B29/022 , B23B2222/2820130101 , B23B2251/7020130101
-
-
-
搜索结果
4 条记录 (耗时 0.009 秒)
