Общий каталог Tungaloy 2020 - 2021 - страница 1258

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2-effective DrillIndexable DrillDeep Hole Drill BD DCONMS Regrinding holder LF LH L2 7 90 Designation DCONMS BD LF LH L2 Head SMP260-279-GH 20 25.5 35 10.8 12 SMP260-SMP279 SMP280-299-GH 20 27.5 35 10.8 13 SMP280-SMP299 SMP300-319-GH 20 29.5 35 13 14 SMP300-SMP319 SMP320-349-GH 20 31.5 35 13 15 SMP320-SMP349 SMP350-379-GH 20 34.5 40 14.7 16.5 SMP350-SMP379 SMP380-410-GH 20 37.5 40 15.1 18 SMP380-SMP410 1 Clamping - Assemble the drill head on the regrinding holder or shortest standard holder (3xD) - Set-up the drill head in the machine : Total run-out must be less than 0.02 mm 2 Grinding the 1st clearance angle - Set the drill for point angle (140°) and 1st clearance angle (8°) DAT DAT 20˚ 8˚ 3 Grinding the 2nd clearance angle - Set the drill for 2nd clearance angle (15°) DAT DAT 20˚ 15˚ 4 Grinding the chisel (Thinning) - Set the drill for thinning angle (35°) with reference to drill axis and angle (30°) with reference to radial axis - Keep the chisel thickness (0.14 - 0.20) and the thinning point must be over the center line 30˚ 35˚ 0.14 - 0.20 mm 5 Edge preparation (Honing) - Cutting edges should have honing by sand or brush (0.04 - 0.06 mm) - You can also use a diamond hand lapper for edge preparation A-A R = 0.04 - 0.06 mm DAT A A J032 www.tungaloy.com