Examples of tool solutions 1 SPOOL BORE HOLES Objective To eliminate rings produced in the bore by the rough pass reamer. In the typical process these rings need to be removed manually prior to finishing/assembly. Result Excellent size consistency A straight hole free of rings Huge cycle-time reduction (50%) 15 minutes saved per part Casted bore hole Machining process Pilot drill Article no. 212851/999999 n = 2000 min -1 vf = 800 mm/min C7 PLUS Machined bore hole Ring-free reamer Article no. 212891/999999 n = 1415 min -1 vf = 354 mm/min Grooving Land C7 PLUS Article no. 432355/999999 n = 1990 min -1 P v AT f E = NT 1 LÖ 2 S 0 UN m GE m N /min C7 PLUS PATENTLÖS 2 OIL HOLES Objective To reduce the often very long machining time of the deep holes in small diameters with no diameter tolerance (in oil connection holes). In many cases, HSS deep hole drills are still used. Result Solid carbide drills with C7 PLUS™ coating ensures increased speed and feed and reduce the cycle time considerably while giving increased life time. Very narrow hole tolerances and a completely safe proces. Machining process Pilot drill Article no. 289411.0400 n = 9550 min -1 vf = 1910 mm/min C7 PLUS Solution A SC deep hole drill n = 6000 min -1 vf = 1800 mm/min PATENTLÖSUNGEN 7
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