Home  Printable Page  Site Map  
Drill Bits Turbodrills Drilling Solutions Pumps Ultra Hard Materials Elastomers Friction Stir Welding
C1WEBCOMMANDIMGPRELOAD
Cutting Tools 
V-Tec End Mill 
Oilfield 
Mining 
Technology 
Company Info 
 
N50 Grade
Enter word or phrase to search for
C1WEBCOMMANDIMGPRELOAD



MegaDiamond medium-content PCBN grade N50 is used to semi-finish and finish machine hardened ferrous materials. N50 is extremely effective in replacing grinding. Its medium cBN content, together with its cermet second phase, give N50 a unique combination of toughness, hardness, and chemical wear resistance. MegaDiamond N50 is particularly efficient in light to medium interrupted cuts.

Applications

N50, with its unique balance of chemical stability, mechanical wear resistance and toughness, targets primarily applications such as interrupted hard turning, hard milling, and interrupted hard grooving.

Typical Properties

cBN Phase Volume (%) = 60

Average Grain Size (µm) = 2.5

Hardness (HV3)  = 2700

Elastic Modulus (GPa) = 650


Standard Blank Offering

Full-Round Blanks Ø 55 mm
Total Overall Thickness 1.6 mm 3.2 mm
PCBN Table Thickness 0.7 mm 0.9 mm


Hard Part Machining



Optimum Machining Parameters Metric Imperial
Cutting speed (Vc): 80 to 150 m/min 260 to 500 sfm
Feed rate (f): 0.1 to 0.25 mm/rev .004 to .010 ipr
Depth of cut (ap): 0.1 to 0.25 mm .004 to .010 inch
Coolant: Dry

Typical Edge Preparations
General cutting conditions:   0.2 mm T-land at 20° with small hone
Unstable conditions in interrupted cut:   0.2 mm T-land at 25° with heavy hone

Smith International  |  Smith Services  |  Wilson  |  M-I SWACO  |  Chemtech  |  S.T.A.T.S.
© Copyright 2005. Smith International Inc. All rights reserved. Terms and Conditions  |   Privacy Policy