Основной каталог Kyocera 2016-2017 - страница 875

◆ Recommended Cutting Conditions Recommended Insert Grades (Cutting Speed Vc: m/min) Workpiece Material fz MEGACOAT Carbide （mm/t） PR1225 PR1210 KW10 Carbon Steel 0.1~0.15 ★ - - 120~220 Alloy Steel 0.1~0.15 ★ - - 120~220 Mold Steel 0.05~0.1 ★ - - 100~180 Stainless Steel 0.05~0.1 ★ - - 80~180 Cast Iron 0.1~0.2 - ★ ☆ 100~220 80~120 Non-ferrous Metals 0.1~0.2 - - ★ 100~300 ★：1st Recommendation　☆：2nd Recommendation ■ Points at Bolt Countersinking (1) Carbon Steel Increase the feed rate to fz=0.1~0.15 (mm/t) for preventing long chips at low feed rates. Chip control is good when setting (Vc=80m/min) for MEF11~MEF25, and (Vc=120m/min) for MEF26~MEF48. Description Cutting Speed Vc (m/min) fz (mm/t) MEF11~MEF25 80 0.1~0.15 MEF26~MEF48 120 0.1~0.15 (2) Sticky Materials Step feed is recommended for good chip control Increase the feed rate to fz=0.1~0.15 (mm/t) for preventing long chips at low feed rate (fz=0.05mm/t). Use cover to prevent accidents or injury by thick chips at higher feed rates. Description Cutting Speed Vc (m/min) fz (mm/t) Step Feed (mm) MEF11~MEF48 80~150 0.1~0.15 0.5~1.5 (3) Stainless Steel Use a lower Cutting Speed. High Cutting Speeds cause chattering. ■ Cutting Performance when Shouldering Description Cutting Range MEF Bolt Countersink End Mill is also recommended of shouldering. MEF11-S12 ap (mm) M ae Vc=80~120m/min MEF14-S12 S55C MEF17-S16 Dry MEF18-S16 ap Overhang Length: φ φ φ Cutting Width：ae(mm) Same as ℓ in the dimension table Milling MEF20-S16 MEF22-S20 ap (mm) ・When shouldering, both side edge and bottom edges function. ~ Both edges wear at the same time depending on ap. MEF25-S20 The insert uses 2 edges instead of 4. (Ref. to Fig.1) φ φ φ Cutting Width：ae(mm) ・MEF type's side edge is designed to have a slight clearance for the countersinking. Therefore, worked side wall is approx. 1° inclined against the vertical MEF26-S25 face. (Ref. to Fig.2) ~ ap (mm) MEF32-S25 MEF35-S32 approx. 1° φ φ φ Cutting Width：ae(mm) （89°） MEF39-S32 ap (mm) MEF43-S32 2 edges function MEF48-S32 Fig.1 Fig.2 φ φ φ Cutting Width：ae(mm) M189