公开(公告)号：WO2004002664A2

公开(公告)日：2004-01-08

申请号：PCT/SE0301104

申请日：2003-06-24

Applicant: SECO TOOLS AB ,  NORSTROEM THOMAS ,  JONSSON MATS

Inventor： NORSTROEM THOMAS ,  JONSSON MATS

IPC: B23B27/14 ,  B23C

CPC classification number: B23B27/145 ,  B23B2200/125 ,  B23B2200/201 ,  Y10T407/23 ,  Y10T407/235

Abstract: The present invention relates to an indexable insert for chip removing machining. The cutting insert (10) has a negative, polygonal basic shape and comprises cutting corners (17). Each cutting corner comprises a nose edge (18) and a minor cutting edge (19; 19'). The nose edge connects to a major cutting edge (15A, 15B) and to the minor cutting edge. A bisector (B) of the corner intersects the nose edge. Upper cutting edges (15A, 15B) are formed in transitions between a top side (11) and an edge surface (13) of the cutting insert. Lower cutting edges are formed in transitions between a bottom side (12) and the edge surface (13). Said sides (11, 12) constitute a rake face in one position and a support surface in another position and said edge surface (13) constitutes an edge surface. Each cutting corner (17) is asymmetrical in relation to the bisector (B) of the corner. The nose edge (18) is defined by a radius (R1) that is smaller than a radius (R2) of the minor cutting edge. Each side (11, 12) comprises a plurality of nose edges (18), which at least partly touch a plane (P). An imaginary line (L), which is perpendicular to the plane (P) and tangent to the minor cutting edge (19), intersects the edge surface (13). The minor cutting edge (19) is curved. The invention also relates to a method for manufacturing a cutting insert for chip removing machining.

Abstract translation: 本发明涉及一种用于切屑去除加工的可转位刀片。 切削刀片（10）具有负的多边形基本形状并且包括切削角（17）。 每个切割角包括鼻部边缘（18）和小切削刃（19; 19'）。 鼻边缘连接到主切削刃（15A，15B）和小切削刃。 角的平分线（B）与鼻边相交。 上切削刃（15A，15B）在切削刀片的顶侧（11）和边缘表面（13）之间形成过渡。 较低的切削刃形成在底侧（12）和边缘表面（13）之间的过渡中。 所述侧面（11,12）构成一个位置的前刀面，在另一位置构成支撑面，并且所述边缘表面（13）构成边缘表面。 每个切割角（17）相对于角的平分线（B）是不对称的。 前缘（18）由比小切削刃的半径（R2）小的半径（R1）限定。 每个侧面（11,12）包括至少部分地接触平面（P）的多个鼻缘（18）。 垂直于平面（P）并与次切割刃（19）相切的假想线（L）与边缘表面（13）相交。 次切割刃（19）是弯曲的。 本发明还涉及一种用于制造用于切屑去除加工的切削刀片的方法。