The polycrystalline diamond (PCD) is obtained through a special sintering process of microscopic diamond particles.
In recent years the use of PCD inserts has greatly increased in mechanical machining.
In fact the main advantages are the result of their unique composition:
- obtaining high quality finishing;
- an increase in cutting speed and machining compared to previously used materials;
- offer superior durability than inserts and tools made of tungsten carbide
PCD is used exclusively for the machining of non-ferrous materials, among which we can find aluminum, copper, bronze, brass, gold, silver, titanium, graphite, plastic materials, carbon fiber.
In order to make the most of its potential, you need to choose between different types of PCD depending on the material you have to work with and the degree of finish you want to achieve.
GRAIN 02
The one with the smallest composition (dimensions of 2 microns) of all the different types of PCD.
It is recommended for finishing and lapping processes.
GRAIN 10
By far the most commonly used, as it offers the best compromise between durability and a quality finish.
It allows you to simultaneously perform the roughing and finishing phase using the same tool.
Recommended for machining all types of alloys.
GRAIN 30
It offers greater resistance to abrasion, even if the degree of finish is slightly lower than the other two types.
Ideal for machining abrasive materials such as graphite, glass fibers, carbon fibers and aluminium with a high silicon content.