Основной каталог Kyocera 2021 - 2022 - страница 716

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MagicDrill DRV Applicable inserts Chipbreaker selection chart P M K (Carbon steel / Alloy steel) (Stainless steel) (Cast iron) Low carbon steel,sticky materials Medium to high carbon steel Non heat treated Fracture resistance oriented or heat treated Cutting force Fracture resistance oriented oriented No interruption Interrupted Low cutting force For soft steel Low cutting force General purpose Tough edge Low cutting force General purpose Tough edge XM chipbreaker SM chipbreaker GM chipbreaker GH chipbreaker SM chipbreaker GM chipbreaker GH chipbreaker K Entangled chips Breakage For soft steel Tough edge XM chipbreaker GH chipbreaker Case studies Housing SCM420 Nipple S20CF Vc = 125 m/min (n = 1,660 min-1) Vc = 230 m/min (n = 3,330 min-1) f = 0.08 mm/rev (Vf = 133 mm/min) f = 0.13 mm/rev (Vf = 433 mm/min) Drilling depth 45 mm Drilling depth 60 mm (4D) Wet (External coolant) 30 mm (2D) S25-DRV240M-4-07 Wet (Internal coolant) Process 2 Process 1 SCMT070310GM-I PR1535 S25-DRV220M-4-06 (4D) Drilling Depth 30 mm Drilling Depth 60 mm SCMT070305GM-E PR1225 S25-DRV220M-2-06 (2D) (2D) (4D) SCMT060210-GM- I PR1535 SCMT060205-GM-E PR1225 Cutting time 50% Cutting timeor more 40% DRV (ø24-4D) 16 sec DRV (ø22-4D/2D) 12sec Cutting time Cutting time Competitor K ( ø24-4D) 35sec Competitor L (ø22-4D/2D) 20sec Chattering and chip biting occurred in low rigidity workpiece Chattering and deflection occurred with Competitor L. DRV of Competitor K. Speed was reduced to Vc = 60 m/min. showed stable machining and a shorter cutting time even when DRV finely divided chips for stable machining at Vc = 125 m/min. the cutting conditions were increased to 1.6 times or more. (User Evaluation) (User Evaluation) K46 Drilling