DoALL Cutting Tools 2022 - Turning Tools Canada

RECOMMENDED STARTING CUTTING SPEEDS | TURNING

Recommended Starting Speeds v c (ft/min)

Brinell Hardness HB

Rockwell Hardness HRC

Tensile Strength MPa

K315

K325

G625

ISO Material Group

Workpiece Material

f n (inch/rev) f n (inch/rev) .004 .008 .016 .004 .012 .020 .004 .008 .012 f n (inch/rev)

Gray Cast Iron Ex. Class 20, 25, 30, 35, 40, 45, 50, 55, 60, G1800, G3000, G3500, G4000

K1

120-290 <32 125-500 1800 1180 885 1540 885 655 625 425 360

Ductile Cast Irons (Nodular Irons) and Compacted Graphite Irons (CGI) Ex. 60-40-18, 65-45-12, 80-55-06, SAE J434: D4018, D4512, D5506 High-Strength Ductile Irons and Austempered Ductile Irons (ADI) Ex. ASTM A536: 100-70-03, 120-90-02, SAE J434: D7003

K Cast Iron

K2

130-260 <28 <600 1215 885 690 885 655 490 525 380 330

K3

180-350 <43

>600 885 690 560 655 490 400 425 360 300

Recommended Starting Speeds v c (ft/min)

Brinell Hardness HB

Rockwell Hardness HRC

Tensile Strength MPa

N425

NA425

ISO Material Group

Workpiece Material

f n (inch/rev) f n (inch/rev) .004 .008 .016 .004 .008 .016

Wrought Aluminum Ex. 1000, 2017, 2025, 5050, 7050

N1

60-90

<520 6900 5400 3600 6900 5400 3600

Low-Silicon Aluminum Alloys (Si < 12.2%) Ex. 2024, 6061, 7075

N2

70-100

<350 1640 985 655 1640 985 655

N Non- Ferrous

High-Silicon Aluminum Alloys (Si > 12.2%)

N3

60-120

200-320 985 655 400 985 655 400

Copper and Copper Alloys Ex. C81500

N4

60-200

200-650 1280 1050 885 1280 1050 885

Recommended Starting Speeds v c (ft/min)

Brinell Hardness HB

Rockwell Hardness HRC

Tensile Strength MPa

S515 f n (inch/rev) .004 .008 .012

ISO Material Group

Workpiece Material

Iron-Based Heat-Resistant Alloys Ex. A286, A608, INCOLOY 800 Series, N-155, Haynes 556, Discaloy

S1

160-260 25-48 500-1200 330 280 230

Cobalt-Based Heat-Resistant Alloys Ex. Haynes 25 (L605), Haynes 188, Stellite, MAR-M302, MAR-M509

S2

250-450 25-48 1000-1450 260 215 165

S High Temp Alloys

Nickel-Based Heat-Resistant Alloys

S3

160-450 <48 600-1700 200 150 115

Ex. Astroloy, Hastelloy X, INCONEL 600 and 700 Series, Waspalloy

Titanium and Titanium Alloys Ex. Commercially Pure Ti, Ti-5Al-2.5Sn, Ti-6Al-4V, Ti-3Al-8V-6Cr-4Zr-4Mo

S4

300-400 33-48 900-1600 -

-

-

5

Powered by