Page 136 - Master Catalog 2017, Inch

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WIDIA VariTurn
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High-Temp Alloys • Iron, Cobalt, Nickel-Based and Titanium Alloys

„ Step 1 • Select the insert geometry

Negative Inserts Positive Inserts

feed rate (mm/rev) feed rate (mm/rev)

2P 1P
Finishing Finishing
depth of cut (in) depth of cut (mm) depth of cut (in) depth of cut (mm)

..GP
Medium

feed rate (in/rev) feed rate (in/rev)

„ Step 2 • Select the grade
Negative Insert Geometry Positive Insert Geometry
cutting condition 2P ..GP 1P
heavily interrupted cut TN15U – TN15U
lightly interrupted cut TN10U TN10U TN15U
varying depth of cut, TN10U TN10U TN10U
casting, or forging skin
smooth cut, pre-turned surface TN10U TN10U TN10U

„ Step 3 • Select the cutting speed

Iron-Based, Heat-Resistant Alloys
(135–320 HB) ()34 HRC) speed — m/min (SFM) Starting Conditions
Material 15 45 75 105 140 170 200 230 260
Group grade (50) (150) (250) (350) (450) (550) (650) (750) (850) m/min SFM
TN10U 50 162
S1
TN15U 33 108
Cobalt-Based, Heat-Resistant Alloys
(150–425 HB) ()45 HRC) speed — m/min (SFM) Starting Conditions
Material 15 45 75 105 140 170 200 230 260
Group grade (50) (150) (250) (350) (450) (550) (650) (750) (850) m/min SFM
TN10U 54 176
S2
TN15U 36 117

Nickel-Based, Heat-Resistant Alloys
(140–475 HB) ()48 HRC) speed — m/min (SFM) Starting Conditions
Material 15 45 75 105 140 170 200 230 260
Group grade (50) (150) (250) (350) (450) (550) (650) (750) (850) m/min SFM
TN10U 63 203
S3
TN15U 42 135

Titanium and Titanium Alloys
(110–450 HB) ()48 HRC) speed — m/min (SFM) Starting Conditions
Material 15 45 75 105 140 170 200 230 260
Group grade (50) (150) (250) (350) (450) (550) (650) (750) (850) m/min SFM
TN10U 63 203
S4
TN15U 42 135

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