External grooving / Cut-Off KGD Good chip control MEGACOAT coating technology for long tool life and high efficiency machining 1 Wide range of chipbreakers Application maps Chipbreaker selection (external) High Cutting force External grooving and traversing General use High feed GM PH Low feed GL Low cutting force GS Low Feed rate High Non-ferrous metals Low rigid material Application External grooving Low feed Carbon steel Alloy steel Stainless steel High feed Interruption Low Copying Cut-Off Low cutting force GS Low feed GL General use GM High feed PH Copying CM High Cutting force General use PM PQ PF Medium feed Low feed PG Sharp-cutting High feed PH Low Feed rate High Low Comparison of chip control (In-house evaluation) Cutting conditions: Vc = 150 m/min, f = 0.15 mm/rev Workpiece : 15CrMo4 Better chip control than competitors Reduces damage of cutting edge caused by crushing chips GM chipbreaker Competitor A Competitor B 1
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