Description

PCD & CBN INSERTS FOR TURNING, BORING AND MILLING
Superabrasive Materials
There are many different types of tip available in the market designed to cope with an array of workpiece materials but for simplicity these may be grouped as follows
Polycrystalline Diamond (PCD).
Cubic Boron Nitride (CBN).
PCD
PCD may be used for both roughing and finishing work, although it is usually most beneficial when tight tolerances or high surface finishes are required combined with the need for exceptionally long tool life. It is available in three grades of increasing crystal size and toughness but with an attendant decrease of edge quality. The finest grade is, therefore, only employed where superior surface finish is the main objective, the middle grade is the general purpose material giving long life with good component finishes; the coarse grade is used where maximum abrasive resistance is required and where finish is not critical.
We will be pleased to offer advice on the selection of the best grade of PCD and cutting geometry for your particular application