MECX ◆ Recommended Cutting Conditions fz (mm/t) Recommended Insert Grades (Cutting Speed Vc : m/min) Workpiece Material MEGACOAT MEGACOAT PVD Coated CVD Coated JS Chipbreaker JT Chipbreaker NANO Carbide Carbide PR1535 PR1225 PR1210 PR830 CA6535 Carbon Steel 0.04~0.08~0.1 0.06~0.1~0.12 ☆ ★ - ☆ - 120~180~250 120~180~250 120~150~180 Alloy Steel 0.04~0.06~0.08 0.06~0.08~0.1 ☆ ★ - ☆ - 100~160~220 100~160~220 100~140~180 Mold Steel 0.04~0.06~0.08 0.06~0.08~0.1 ☆ ★ - ☆ - 80~140~180 80~140~180 80~120~150 Stainless Steel 0.03~0.04~0.05 0.05~0.06~0.07 ★ ☆ - - - (Austenitic related) 100~160~200 100~160~200 Stainless Steel 0.03~0.04~0.05 0.05~0.06~0.1 ☆ - - - ★ (Martensitic related) 150~200~250 180~240~300 Stainless Steel 0.03~0.04~0.05 0.05~0.06~0.1 ★ - - - - (Precipitation Hardening) 90~120~150 Gray Cast Iron 0.04~0.08~0.1 0.08~0.1~0.15 - - ★ - - 120~180~250 Nodular Cast Iron 0.04~0.06~0.08 0.08~0.1~0.12 - - ★ - - 100~150~200 Ni-base heat-resistant 0.03~0.04~0.05 0.05~0.06~0.07 ☆ - - - ★ alloys 20~30~50 20~30~50 Titanium Alloys 0.04~0.06~0.08 0.08~0.1~0.12 ★ - ☆ - - 40~60~80 30~50~70 * Machining with coolant is recommended for Ni-base heat-resistant alloys and titanium alloys. ★:1st Recommendation ☆:2nd Recommendation Ramping / Helical Milling ● Ramping angle is recommended under α°. Cutting Dia. Applicable Inserts Max. ramping angle (α°) ● Refer to each tool’s cutting performance list for depth of helical milling per one revolution. φ8 Not recommended φ10 1.5° Use compressed air during machining. φ12, φ14 2° φ16 3° φ17, φ18 1.5° φ20 BDMT0703 type 2° φ21 1.8° φ25 1.3° M φ26 1.2° α φ32 0.8° φ33 0.5° ■ Guidance of minimum cutting dia. by helical milling Milling MECX Cutting Dia. φ8 φ10 φ12 φ14 φ16 φ17 φ18 φ20 Guidance of minimum cutting dia. φ14 φ18 φ22 φ26 φ28 φ30 φ34 BDMT0703 by helical milling Helical milling is Inserts type Guidance of minimum cutting dia. in case not recommended. of flatting bottom after helical milling. φ17 φ21 φ25 φ29 φ31 φ33 φ37 Lead Angle 45°/20° Lead Angle MECX Cutting Dia. φ21 φ25 φ26 φ32 φ33 15° Guidance of minimum cutting dia. Lead Angle by helical milling φ36 φ44 φ46 φ58 φ60 0° BDMT0703 type Guidance of minimum cutting dia. in case High Feed of flatting bottom after helical milling. φ39 φ47 φ49 φ61 φ63 Multi- Function Slot Mill Ball-nose Radius Others M74