Adjustment of machining programmes for wiper inserts DNMX TNMX types

Adjustment of machining programmes for wiper inserts DNMX TNMX types

Adjustment of machining programmes for wiper inserts DNMX TNMX types _ Basic Process) Adjusting Toward X-axis and Z-axis Adjusting the differential between a standard insert and Z-axis I X-axis. Adjustment toward X-axis Standard insert DNMX,TNMX type Corner radius 0.4,0.8: 0.04 mm Corner radius 1.2 : 0.05 mm Adjustment toward Z-axis Standard insert DNMX,TNMX type (Not closed to Corner R) 0.01mm A) Adjusting a Taper Necessary to maintain a correct taper. Adjust the relief angle toward the normal line. Notel) Adjust the angle toward the normal line In the case where the adjustment number is minus (0 =60° 70°) and is not machined completely. Classification Taper Angle 9° Corner Radius -25 -15 -10 -5 0 5 10 15 20-35 40 45 50 55 60 65 70 75-85 90 1.2 0.04 0.03 0.01 0 0.02 0.03 0.04 0.05 0.04 0.04 0.02 0.01 -0.01 0 0.01 0 0.8 0.03 0.02 0.01 0 0.01 0.02 0.03 0.04 0.03 0.03 0.02 0 -0.01 0 0.01 0 0.4 0.02 0.01 0.01 0 0.01 0.01 0.02 0.02 0.02 0.01 0.01 0 -0.01 -0.01 0 0 The number >+numbers:adjustment of relief angle, -numbers:adjustment of drive-in angle (mm) B) Adjusting a Corner R Necessary to maintain a correct corner radius. Adjust the work diameter same as the taper to prevent over-cut. The value of adjustment to work R = Work R + the adjustment value No adjusting the corner radius in this case. The corner radius of the insert The adjustment amount on the workpiece radius. 'Corner Radius 0.4- Work Radius+0.05(mm) Corner Radius 0.8 - Work Radius+0.11(mm) s Corner Radius 1.2- Work Radius+0.14(mm) Ex): In case of machining R 2.0 when using a corner R 1.2 type insert. Geometry of adjusted programme 2.0 + 0.14 Work radius Adjusted conditions ' The actual machining geometry In correcting corner radius: . . „. . . It is not necessary to adjust the machining programme, however, machining errors can occur within max. The Easy-tO-COrreCt Method ±0.03mm due to correcting by an approximate number. Corner Radius Correction Input the correction number of each corner radius. The value of corrected corner radius = approximation No adjusting the machining the programme in this case. The corner radius of a insert The value of corrected corner radius = approximation 'Corner Radius 0.4 -) R0.36(mm) Corner Radius 0.8 - R0.76(mm) s Corner Radius 1.2- R1.16 (mm) Ex):ln the case of machining a corner with a radius R 2.0 when using an insert with a corner radius R 1.2. Others) The value of correction is same for both DNMX and TNMX. Discriminate them by the size of corner radius. Geometry °f adjusted programme A029 TURNING INSERTS