Каталог Carmex общий 2021 - страница 376

® Mill-Thread Technical Section FMT - Fast MT type Carmex has designed a unique line of solid carbide thread milling tools FMT for increased productivity and high performance. Large number of flutes enables to achieve significant shorter machining time. FMT vs. Taps Features FMT Taps Thread up to bottom at blind hole Possible Not possible Machining load Very low High Thread surface quality High Medium Process reliability Very reliable, especiallyfor expensive work piecesMedium Thread geometry Very accurate Medium Cycle time Same or faster than tap Fast Case Study Application Internal right hand thread: M6x1.0 Thread length: 10 mm, Blind hole Bore size: Ø 5 mm Chamfer: 0.9 mm Work piece material Steel SAE 4340 Cutter description FMT08048F10 1.0 ISO - with internal coolant Shank diameter: Ø8 mm Cutting diameter: Ø4.8 mm Number of flutes: 6 Cutting length: 10.5 mm Total length: 64 mm Cutting conditions Cutting speed: 130 m/min Feed: 0.016 mm/tooth Machine Mori Seiki NV5000 Coolant: emulsion 5% Results Tool life : 2,170 threads Cycle time: 1.5 sec B12-14