Page 49 - ISCARs-solutions-for-Heavy-Machining-2022

Test Parameters
Drill MD-DR-DH 380 070707-06
Insert SOMX 070305-DT
Insert grade IC908
Tool/insert material Carbide Coated
Hole diameter 38 mm (1.49”)
Hole depth 421 mm (16.5”)
Cutting speed 85 m/min (280 sfm)
Spindle speed 712 rpm
Feed 0.15 mm/rev (.006 ipr)
Table feed 107 m/min (4.2 in/min)
Holes per cutting edge 30
Chip type Spiral
Material removal rate 121.13 cm /min (7.39 in3/min)
3

Test Parameters
Drill MNB 0600-050 X25-20-T10
Insert TOGT 100305-DT
Insert grade IC908
Tool/insert material
Hole diameter 60 mm (2.3”)
Hole depth 420 mm (16.4”)
Cutting speed 90 m/min (297 sfm)
Spindle speed 477 rpm
Feed 0.14 (mm/rev) (.006 ipr)
Table feed 67 m/min (2.6 in/min)
Holes per cutting edge 8
Chip type Comma/Helical
Material removal rate 189 cm /min (11.53 in3/min)
3

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