公开(公告)号：EP2490853A2

公开(公告)日：2012-08-29

申请号：EP10825584.5

申请日：2010-10-20

申请人： Kennametal Inc.

发明人： GEY, Christoph ,  SAMPATH, Karthik ,  ROSENBERGER, Fabian ,  GEORGE, Stephen

IPC分类号： B23K26/36 ,  B23K26/00 ,  B23B27/14 ,  B23K101/20

CPC分类号： B23K26/38 ,  B23K2201/002 ,  Y10T407/19

摘要： A method for forming the cutting edge (20, 22) and adjacent contoured surface (S) area of rotary cutting tools (10) utilizing a laser (50) to remove material from the cutting end (18) of the tool (10) to create a predetermined point-by-point geometry is disclosed. Relatively complex surface and edge geometries may be formed by directing a laser beam (L) toward the cutting end (18) of the tool (10) at an angle (?) having a component (CN) that is normal to the surface (S) of the cutting end (18). The laser beam (L) is directed in multiple passes across the surface (S) of the cutting end (18) to remove material and form the desired cutting edge (20, 22) and adjacent three-dimensional contoured surface geometry (S).

公开(公告)号：EP2265402A2

公开(公告)日：2010-12-29

申请号：EP09718938.5

申请日：2009-03-04

申请人： Kennametal Inc.

发明人： SAMPATH, Karthik ,  SCHWAEGERL, Juergen

IPC分类号： B23C5/20 ,  B23C5/22 ,  B23C5/02 ,  B23B27/16

CPC分类号： B23B51/02 ,  B23B2251/04 ,  B23B2251/18 ,  B23B2251/443 ,  Y10T408/909 ,  Y10T408/9097 ,  Y10T408/90993

摘要： A twist drill has double margins and a chisel edge angle of between 80 degrees and 100 degrees to maximize hole straightness and to minimize 'walking' of the drill upon a workpiece. The drill may be modular having a removable tip body or the drill may be of a solid configuration. A tip body is consumable and may be removed and replaced as required.