Currently PCBN inserts, which incorporate a C-lock hole clamping system, are produced with a tungsten carbide blank in which a PCBN tip is brazed into corner pockets.
Several weaknesses have been identified in the current tipped concept such as limited depth of cut, due to small PCBN tip size and increased risk of PCBN failure due to braze joint failure during machining.
The new range of PCBN inserts with C-lock hole clamping system offers a unique solution to the weaknesses identified.
By using a format where a full faced PCBN layer runs across the top of the insert, depths of cut are no longer limited by tip size and with no braze joints or PCBN pockets, the cutting edge will never be lost to braze failure.
By combining the latest hole making technology with full faced PCBN blanks, Seco Tools are able to produce the complex C- locking hole system directly into the PCBN/tungsten carbide layer. This offers the consumer the following advantages:
- Low cost per edge
- Full faced PCBN format which is integrated into the WC backing
- Multiple cutting edges
- Positive geometries for reduced cutting forces
- No braze joints
- Extensive range of insert geometries
- Available in two PCBN grades, CBN10 and CBN200
- Available for both roughing and finishing operations
By replacing the limitations of pocketed PCBN tips with an integral full faced PCBN layer, the new Secomax PCBN C-lock inserts offer unrivalled machining opportunities such as the ability to rough at greater depths of cut or use other machining techniques not previously available to PCBN C-lock inserts, such as plunge turning or milling.
This new concept is available in two Secomax grades, CBN10 for the finishing of hard steels and CBN200 for the roughing and finishing of grey irons and powdered steels as well as the roughing of hard steels and irons.
The new concept is also very cost effective. By eliminating the pocketing and brazing process during manufacture, Seco Tools are able to make the cost per edge of these inserts very competitive.