- The introduction of PCD cutting tool blanks
PCD cutting tool blanks consist of PCD layer integrally sintered at
ultrahigh pressure and high temperature to a cemented tungsten
They have the high hardness and abrasion resistance of nature
diamond, and combined with the toughness that of tungsten carbide.
Their life are 10 to 100 times of tungsten carbide cutters.
- The application of PCD cutting tool blanks
The PCD does not react chemically with non-ferrous metal and nonmetal materials, so it’s suitable for
machining of non-ferrous metal and alloys, such as aluminum,
copper, zinc, as well as wood, ceramics, rubber, plastic, fibre,
- The Feature of PCD cutting tool blanks
About The grain size select
The main controlling factor determining PCD grade(the work piece
surface finish and the abrasion resistance(tool life) )is the grain
size. It is generally accepted that abrasion resistance increases
with increased grain size, and the work piece surface finish are
increases with the decreasing grain size. The medium grain size PCD
blanks are generally used for their ability to strike a balance
between good abrasion resistance (tool life) and maintaining good
work piece surface finish.
About The welding trmperature
The PCD blank is thermally stable up to 750°C, so it’s better to be
welded with silver solder in a very short time, otherwise will cause
carbonizing reaction or crack.