Общий каталог Widia 2017 - страница 955

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Copy Mills • M170™ Series Additional Application Advice • RD07.. 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 application ae engagement 10% 20% 30% 40% 50% 100% highlighted. Ap1 = 0,5mm 0,59mm 0,42mm 0,34mm 0,30mm 0,26mm 0,19mm Ap1 = 0,75mm 0,50mm 0,36mm 0,29mm 0,25mm 0,22mm 0,16mm Ap1 = 1mm 0,42mm 0,30mm 0,24mm 0,21mm 0,19mm 0,13mm Ap1 = 1,5mm 0,34mm 0,24mm 0,20mm 0,17mm 0,15mm 0,11mm Ap1 = 3,5mm 0,22mm 0,16mm 0,13mm 0,11mm 0,10mm 0,08mm Example Cutting Conditions for RD..07... Insert in Pocketing, L/D ratio = 2 x D: TN2505 TN6525 TN6540 feed per tooth fz (mm)/ae>50% insert = RDPX0702M0SNMH min med max min med max min med max ae>50% Recommended starting Ap1 = 0,5mm 0,19mm 0,22mm 0,30mm 0,19mm 0,30mm 0,35mm 0,19mm 0,30mm 0,40mm 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: L L % of Ap1 max % of vc L/D ratio to reduce to reduce D <2 0% 0% 24 80–95% 20–40% D D Recommended Cutting Conditions • Helical Interpolation from Solid Cutter Diameter min hole max hole diameter Ap1 max max Ap1 max cutter diameter diameter (flat bottom) per revolution ramp angle when plunging 12 17mm 17mm 3,5mm 22° 1mm 15 18mm 23mm 2,8mm 18° 2,2mm 16 20mm 25mm 1,9mm 9° 1,4mm Hole Diameter 20 28mm 33mm 3,5mm 12° 1,5mm 25 36,5mm 43mm 3,5mm 8.5° 2,5mm 30 46,4mm 53mm 3,5mm 6.5° 2,5mm widia.com M51