Additional Application Advice RD1604 Widia Selecting the Correct Cutting Values 1 fz depends on the Ap1 and ae values With round inserts, two facto

Additional Application Advice RD1604. Widia Selecting the Correct Cutting Values 1. fz depends on the Ap1 and ae values With round inserts, two factors can affect the hm Ap1 and ae. fz has to be adjusted accordingly. Recommended Starting Feed Rate Values (fz) Related to the Ap1 and ae Values Example Cutting Conditions for iC16mm Insert in Pocketing, up to 3 L/D approximately ae engagement 10% 20% 30% 40% 50% 100% Ap1 1mm 1,52mm 1,07mm 0,88mm 0,76mm 0,68mm 0,48mm Ap1 2mm 1,07mm 0,76mm 0,62mm 0,54mm 0,48mm 0,34mm Ap1 3mm 0,88mm 0,62mm 0,51mm 0,44mm 0,39mm 0,28mm Ap1 4mm 0,76mm 0,54mm 0,44mm 0,38mm 0,34mm 0,24mm Ap1 5mm 0,62mm 0,44mm 0,36mm 0,31mm 0,26mm 0,20mm Ap1 6mm 0,54mm 0,38mm 0,31mm 0,27mm 0,24mm 0,17mm Example application highlighted. insert RDPX1604M0SN TN2505 TN6525 TN6540 feed per tooth fz (mm)/ae>50% min med max min med max min med max Edge Geometry MM ae>50% Recommended starting Ap1 3mm - 0,28mm 0,45mm 0,65mm 0,28mm 0,50mm 0,70mm Edge Geometry MH ae>50% Recommended starting Ap1 3mm 0,28mm 0,35mm 0,50mm 0,28mm 0,50mm 0,75mm 0,28mm 0,60mm 0,80mm 2. Ap1 and vc corrections depend on L/D ratio With increasing L/D ratios, or overhang, vibrations can occur due to reduced rigidity. To ensure successful application, it is recommended to adjust Ap1 and vc values according to the following table of Ap1 max of vc L/D ratio to reduce to reduce <2 0% 0% 24 80-95% 20-40% Recommended Cutting Conditions Helical Interpolation from Solid cutter diameter min hole diameter max hole diameter (flat bottom) Ap1 max per revolution max ramp angle Ap1 max when plunging 32 36mm 48mm 3mm 20° 3mm 50 69mm 84mm 8mm 9,5° 4,8mm 52 73mm 88mm 8mm 8,2° 5mm 63 95mm 110mm 8mm 5,5° 4,7 mm 66 101mm 120mm 8mm 4° 4,2mm 80 129mm 144mm 8mm 3° 4,1mm 100 169mm 184mm 8mm 2,4° 4,6mm 125 219mm 234mm 8mm 2,2° 4,4mm b H 1 D 1 b -H D Cutter Diameter M70 L L L Copy Mills M170 Series