Общий каталог Tungaloy 2020 - 2021 - страница 1672

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Parts for ToolsTechnicalReference User’s Guide - Technical Reference Drilling To o l s Drilling procedure on machining centers and lathes Proceed as instructed below in order to maximize the tool performance. 1 1 Drill a pilot hole Hole diameter tolerance: +0.01 - +0.1 mm Hole depth: H = 20 mm 20 mm Please use DrillMeister or DrillForce-Meister for a pilot hole Use a drill with 3xD or smaller 2 2 Start coolant 3 Slowly insert DeepTri-Drill into the pilot hole No. of revolution: n = 50 - 100 min-1 3 Feed speed: Vf = 100 - 300 mm/minCaution: Do not rotate the drill at a full machining speed before engaging the pilot hole. 5 4 Stop the drill at 15 mm depth 4 15 mm 5 Start rotating at full machining speed 6 6 Start feeding At the entry (H = 15 - 25 mm): Feed: f = 80% of programmed feed Hole depth: H H * 25 mm Feed: f = 100% 8 Stop 7 For a through hole Continue drilling until the drill head passes through the workpiece by 5 mm 7 5 mm 9 8 Stop the rotation and coolant9Returnthedrill How to use a trlg type deeptri-drill on a horizontal machining center or boring machine When using the TRLG drill on a conventional machining center or horizontal boring machine where there are no drilling-bush supports available, a pilot hole needs to be further deepened with a MCTR drill to better support the long gundrill. A long gundrill such as the TRLG type drill tends to “whip” when the pilot hole is too short to support the gundrill. 1 Drill a pilot hole 1 2 MCTR 2 Expand the pilot hole deeper using a MCTRdrill 3 TRLG 3 Drill with a TRLG drill at a reduced rotationand feed. Use the following parameters: No. of revolution: n = 50 - 100 min-1 Feed speed: Vf = 100 - 300 mm/min 4 TRLG 4 When DeepTri-Drill reaches all the way to the end of the pilot hole, increase drill rotation to full machining speed. 5 TRLG 5 Start feeding to complete the drilling (Caution) Always use Step 2 to prevent the gundrill from whipping, which may lead to drill breakage and a possible superfluous injury. L084 www.tungaloy.com