Materials for dentistry must be aesthetic surfaces on the one hand, durable and particularly well tolerated by the body on the other. Numerous dental materials with these properties are available today – from composites and ceramics to a wide variety of metal alloys.
Milling and processing dental materials
The dental industry has developed from handicraft to an industrialized CAD/CAM manufacturing process. For the production of crowns, bridges or abutments, radius cutters or torus cutters are required that are precisely tailored to the needs of the material, the machine and last but not least the user in order to be able to achieve a perfect result.
Dentists can now choose from numerous materials for high-quality dentures. Cobalt-chrome (CoCr) or non-precious metal, titanium, zirconium, PMMA, PEEK or nanocomposite are the dental materials that are mainly used in the dental industry. In addition, various ceramics, especially di-silicates, are also used.
Bite down powerfully – optimization potential for tools for machining in dental technology
There is great optimization potential in the manufacture of dental prostheses and implants, which can be realized through the use of highly developed, specialized tools. Hufschmied offers the dental industry a range of precise tools that are specially optimized for processing zirconium oxide ceramics, plastics and other dental technology materials.
When dental technology companies that were originally organized as manual labor invest in a modern milling center, there is also a desire to industrialize the processes. The new machines should be utilized to the best possible extent with orders in order to achieve faster amortization. For this process optimization, it is just as important to evaluate specialized tools. In the dental program catalog of Hufschmied you will find the ideal tool geometries based on the dental materials. These tool geometries are then adapted to the machines available to the user and displayed. Axes speeds, feeds, tool holders and controls.
Hufschmied can draw on a pool of over 700 standard tool geometries that serve as a starting point for the development, manufacture and delivery of individual tools for your company or the requirements of the machine types used. We vary the technology of the tools to suit the behavior of the material and the machine properties. For example, if you are working on a machine with relatively low power and high speed, there must be room for a high chip volume, and usually only two or three cutting edges can be provided. If, on the other hand, you want to machine with a rather slow machine that has a high torque, the tool can be equipped with up to six cutting edges or more. The question of how long a tool has to be also depends on the machine, for example. Our dental industry consultants look forward to working with you to define the perfect tools for your business.
How Hufschmied Tools master the challenge of ceramics
The material requirements of a cutting tool are primarily determined by the strength of the materials to be machined. But the micro-geometry and coating also have to be adapted to the material. Ceramic components are a particular challenge, as they are not removed as chips but rather in powder form. The extremely abrasive effect of this powder requires a high-quality diamond coating on the tool, as this is the only way to achieve a long service life. An example of such a tool is the Zirkon Duster Hufschmied, which can be used for both roughing and finishing. Since it also works with a particularly low cutting pressure, wall thicknesses of only 0,1 mm can be produced. The nanocrystalline diamond layer DIP®3S is designed in such a way that the zirconium dust cannot settle on the tool surface due to the low surface roughness of the coating. This eliminates the hassle of cleaning the tools, for example.
Best performance with other plastic materials
For PEEK and CF-PEEK PMMA has Hufschmied developed the single-edged milling tool 110FPRDT. A bite splint can be milled in less than 25 minutes. With the traditional approach, this usually takes an hour. Incidentally, the special experience of PMMA is also evident in the case of PMMA thermoplastics Hufschmied with difficult materials: the transparency of the acrylic glass is retained during processing. Due to the special geometry of the single-edged 110FPRDTA full radius milling cutter, PEEK can also be machined burr- and lint-free without cooling. If you want to make the machining work in your dental laboratory more efficient, you can take part Hufschmied a contact person who is competent in every respect.
Cost-efficient and post-processing-free processing
Also offers here Hufschmied a wide range of milling cutters for the cost-efficient, post-processing-free machining of these materials: We choose the optimal cutting edge geometry, the appropriate base material and the most efficient coating of the tool and use this to build a complete tool system for the respective dental milling machine.