Основной каталог Kyocera 2021 - 2022 - страница 970

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Ball-nose / radius type cutters MRW Recommended cutting conditions Recommended insert grades (Vc: m/min) Recommended chipbreaker (fz: mm/t) *Recommended feed rate (Reference value) CVD Coated Workpiece material for ROMU12 type: ap=3 mm/for ROMU16 type: ap=4 mm MEGACOAT NANO carbide GM SM GH PR1535 PR1525 PR1510 CA6535 ★ ✩ ✩ ✩ ★ Carbon steel - - 0.1~0.2~0.3 0.06~0.15~0.2 0.15~0.3~0.35 120~180~250 120~180~250 ★ ✩ ✩ ✩ ★ Alloy steel - - 0.1~0.2~0.3 0.06~0.15~0.2 0.15~0.3~0.35 100~160~220 100~160~220 ★ ✩ ✩ ✩ ★ Mold steel - - 0.1~0.15~0.25 0.06~0.12~0.2 0.15~0.2~0.3 80~140~180 80~140~180 ✩ ★ ✩ ★ ✩ Stainless steel (Austenitic related) - - 0.1~0.15~0.2 0.06~0.12~0.2 0.15~0.2~0.25 100~160~200 100~160~200 ✩ ★ ✩ ✩ ★ Stainless steel (Martensitic related) - - 0.1~0.15~0.2 0.06~0.12~0.2 0.15~0.2~0.25 150~200~250 180~240~300 ★ ✩ ✩ ★ Stainless steel (Precipitation Hardening) - - - 0.1~0.15~0.2 0.06~0.12~0.2 0.15~0.2~0.25 90~120~150 ★ ✩ ★ Gray cast iron - - - - 0.1~0.2~0.3 0.15~0.3~0.35 120~180~250 ★ ✩ ★ Nodular cast iron - - - - 0.1~0.15~0.25 0.15~0.2~0.3 100~150~200 ★ ✩ ✩ ✩ ★ Ni-base heat-resistant alloys - - 0.1~0.12~0.15 0.06~0.1~0.15 0.12~0.15~0.2 20~30~50 20~30~50 ✩ ★ ★ ✩ Titanium alloys - - - 0.1~0.12~0.15 0.06~0.1~0.15 40~60~80 30~50~70 ★: 1st Recommendation ✩: 2nd Recommendation * Machining with coolant is recommended for Ni-base heat-resistant alloys and titanium alloys. M * The bold-faced number indicates a center value of recommended cutting condition. Adjust the cutting speed and the feed rate within the above conditions according to the actual machining situation. * Recommended feed rate is the reference value when ap is RE/2 (3mm for ROMU12, 4mm for ROMU16). For lower ap than the above conditions, the conversion factor in the following table is recommended. Conversion factor for feed per tooth fz Insert ap (Recommended) Max. ap Milling ap=0.5mm ap=1mm ap=2mm ap=3mm ap=4mm 1.0 ROMU12 type 3mm or less 6mm 2.1 1.5 1.1 - (Standard) 1.0 ROMU16 type 4mm or less 8mm 2.4 1.7 1.3 1.1 (Standard) * Example (ROMU12 type, carbon steel, GM chipbreaker, ap=1mm) fz=0.2mm/t (Reference value for carbon steel and GM chipbreaker) × 1.5 (Conversion factor for ROMU12 type, ap=1mm) = fz = 0.3 mm/t (Recommended feed rate) * Recommended ap: 3mm or less for ROMU12, 4mm or less for ROMU16 Except the case that ap temporally surpass the recommended ap, machining under the recommended ap is recommended. Corner-R shape during processing Y(Gap between insert corner-R) Corner-R shape during processing with MRW (Ref. to the right figure) Insert APMX X Y Insert corner ROMU12 type 6 mm 3 mm 0.1 mm ROMU16 type 8 mm 4 mm 0.1 mm X(Recommended ap) APMX * When machining with larger ap than recommended ap (X), there is a gap (Y) between the workpiece corner and Insert corner-R(RE). * The above figure is estimation. There would be ±0.2mm variation depending on the cutting conditions. M198