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    • 1. 发明申请
    • A CUTTING INSERT WITH A SMALL CHAMFER ANGLE AT THE NOSE CUTTING EDGE
    • 一个切割插入与一个小的角度在诺斯切割边缘
    • WO2006091144A1
    • 2006-08-31
    • PCT/SE2006/000214
    • 2006-02-16
    • SECO TOOLS ABKRATZ, Hubert
    • KRATZ, Hubert
    • B23B27/14B23B27/00
    • B23B27/145B23B2200/201B23B2200/3672B23B2226/125Y10T407/23Y10T407/235Y10T407/24Y10T407/245
    • The present invention relates to a metal cutting insert (10) that is primarily intended for turning operations. The cutting insert comprises an upper surface (11), a lower surface (12) substantially parallel with said upper surface, and at least three side surfaces (13A,13B) extending between said upper and lower surfaces. A transition between two adjacent side surfaces (13A.13B) forming a rounded nose radius surface (14A) at a cutting insert corner (14). The cutting insert comprises a peripheral land (15,15A,15B) bridging the upper and side surfaces at least at the corner portion (14) at a chamfer angle (β A -β E )- An intersection of the land (15,15A,15B) and the nose radius surface (14A) forms a nose cutting edge (16;16') . The nose cutting edge (16;16') is defined by at least one radius (R1). The cutting corner comprises at least one curved wiper edge (17,18;17',18'). The chamfer angle (βc) in a cross-section at the nose cutting edge (16; 16') is smaller than the chamfer angle in a cross-section a distance away from the nose cutting edge (16; 16') . The chamfer angle (βc) has a minimum at a bisector (B) of the corner portion (14)
    • 本发明涉及主要用于车削操作的金属切削刀片(10)。 切削刀片包括上表面(11),基本上平行于所述上表面的下表面(12)和在所述上表面和下表面之间延伸的至少三个侧表面(13A,13B)。 两个相邻的侧面(13A.13B)之间在切削刀片角(14)处形成圆形的前端半径表面(14A)的过渡。 所述切削刀片包括至少在所述角部(14)处以倒角角度(β1-β')桥接所述上表面和所述侧表面的外围平台(15,15A,15B) ) - 陆部(15,15A,15B)和前端半径表面(14A)的交点形成一个前刀刃(16; 16')。 前刀刃(16; 16')由至少一个半径(R1)限定。 切割角包括至少一个弯曲的擦拭边缘(17,18; 17',18')。 在前端切割刃(16; 16')的横截面中的倒角角(βc)小于在离开前刀刃(16; 16')的距离的横截面中的倒角角度。 斜角(ßc)在角部(14)的平分线(B)处具有最小值,