The evolution of solid carbide drilling
The popularity of the solid carbide drill has increased significantly over the years. In the 1980s there were still strict conditions for its application, because the stability of the machine and the fixture was limited. This is no longer an obstacle in modern CNC machines. That is why solid carbide drills are now widely used in all kinds of machines.
The stability and capacity of milling and turning machines has been greatly developed in recent years. In addition, the development of tools has taken off in the field of base materials, coatings and geometries. As a result, it is now possible to drill very deep holes with a solid carbide drill. Previously this was unthinkable, because this would immediately lead to breakage of the drill.
However, solid carbide drills are still mainly used for holes with a depth of max. 3xD or 5xD. As more and more machines are equipped with high-pressure cooling through the spindle, the use of solid carbide drills with cooling channels has taken off.
The advantages and disadvantages of solid carbide drilling
- Higher productivity
- Longer tool life
- Higher hole accuracy and dimensional stability
- Better positioning accuracy
- Better hole surface quality
- Can be used in harder materials
- More resistant to heat development
- Lower cost per hole drilled in series production
- More expensive to purchase than HSS or HSCo drills
- More sensitive to instability in machine, fixture or workpiece
- Higher RPM Required
Solid carbide drills from Dormer Pramet
Dormer Pramet mainly focuses on the development of tools for a wide range of applications. After all, many production companies work with all kinds of different materials. Then it is more efficient to have tools that achieve good productivity in all these materials. Dormer Pramet's range of solid carbide drills consists of two series: Force X drills and Force M drills.
Force X Series:
Force M series
This technology developed by Dormer is now being applied to the solid carbide drills, so that the Force X and Force M drills contribute to the sustainable use of the raw materials needed for the production of carbide. Resharpening becomes much easier and therefore cheaper.
Our solid carbide drills only perform optimally if they are clamped in a high-accuracy recording. Therefore, the shaft is manufactured in accordance with DIN 6535 HA, i.e. a cylindrical unit shaft in H6 tolerance. It is especially suitable for the crimp holder or hydraulic tensioner. Of course, it can also be incorporated into a collet chuck, but in that case we recommend a precision collet chuck (with increased concentricity).
If only weldon holders are available, grinding a chuck on the drill is an option. However, this can negatively affect the accuracy and tool life of the drill at high speeds.
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