KOMET KUB Pentron 6xD Productivity PLUS

Solid drilling to 6×D even without a centring point or guide rails.

The new  KOMET  Pentron  6xD Productivity PLUS indexable insert high-performance drill bit was developed for continuous solid drilling up to 6×D, even in extreme machining situations. The new  KOMET  Pentron  6xD Productivity PLUS does not have any guide elements and is therefore a cost-effective and high-performance alternative that nevertheless ensures high productivity and process reliability.

5×D is as good as it gets when it comes to the length/diameter ratio of drilling tools. Or at least, that's what was previously thought, since larger ratios have a considerable adverse effect on stiffness; until now, stable machining operations and adequate feed rates have been mutually exclusive. But  KOMET  has been hard at work, pooling its many years of experience and sophisticated development methods to come up with the new  KUB Pentron  6xD Productivity PLUS with performance data that will not fail to impress. 

FIELD TEST DATA

• Roughing in 42CrMo4 quenched and tempered steel
• Feed rate of up to 0,12 mm/rev
• Cutting speed of up to 176 m/min
• Tool life travel of up to 9,9 m

IN SUMMARY

With this kind of cutting data and the results it has achieved in testing, the new  KOMET  KUB Pentron  6xD Productivity PLUSwithout additional centring point is set to be a highly productive tool. Not only are these figures considerably higher than comparable drill bits without guide elements, but they also demonstrate that the new tool can hold its own against its guided counterparts.

BENEFITS TO YOU

• Drilling and chamfering in a single operation
• Low-cost, high-performance alternativewithout guide elements
• Does not compromise on productivity or process reliability
• Superior stiffness thanks to the optimised basic-body geometry

Stability even without a centring point

Tools of this size normally have guide elements, such as a centring point or guide rails. This complicates the manufacturing process and makes it cost intensive. In order to obtain the necessary stiffness without the guide elements, the basic body for the KOMET KUB Pentron  6xD Productivity PLUS has been completely redesigned. To do so, the  KOMET  developers first determined the loads arising in machining tests using force measurements. In a subsequent "screening", they focussed on geometric properties that affect the stiffness. This examination showed that extending the tool from 5×D to 6×D could increase the stiffness by up to 45 percent. Armed with these findings and using the design of experiments (DoE) and finite element (FEM) methods, a basic body geometry was produced that guarantees a stiffness that is sufficient to withstand the specific loads which it is subjected to on the lateral force plane.