Zecha
Whether, titanium, zirconium oxide or chrome cobalt compositions - the tool range of Zecha Hartmetall-Werkzeugfabrikation GmbH covers a vast range of applications in dental technology.Every tooth is unique. In order to now find the ideal solution for the individual patient, modern dental technology can draw on a vast variety of materials for the tooth replacement such as gold, chrome cobalt compositions or zirconium oxide and titanium. Apart from the need for extensive process knowledge, the right tools for the job help to guarantee success. Zecha Hartmetall-Werkzeugfabrikation GmbH provides dental technicians a large ranges of high performance tools for the economical processing of high tech materials - and can thus ensure a permanent sparkling smile.
Hardly a tooth replacement product is still made by hand these days. Firstly, modern, ultrastrong materials require a machine manufacturing strategy. Secondly, the demands for precision and process capability are also increasing in dental technology and these can only be met by documented production sequences.
In addition, the materials are extremely difficult to process and call for high quality, resistant cutters, drills or whirl thread cutters in order to implement the small and complex geometries of in- and onlays, bridges and crowns. Zecha Hartmetall-Werkzeugfabrikation in Königsbach-Stein has been an experienced partner of the dental sector for almost 50 years now and delivers high quality tools spanning the entire workflow.
Material variety demands a broad range of tools
Among other things dental companies must machine materials such as titanium and its alloys as well as increasingly the abrasive material zirconium oxide. "Anybody who tries to save in the wrong places soon has to deal with rapid tool wear and in the worst case scenario even with a complete failure of the tool. We optimise our tool series for such applications and have already enabled many a customer to employ a specific processing technique in the first place." explains Andreas Weck from the tool development team at Zecha. For example, the company has recently added the series 405 and 406 designed for the processing of cobalt chrome to its range. These three-edged ball nose end mills can be used as roughing tools to achieve a very high machining volume on corresponding machining centres.
However, they can also be employed as a finishing tool to achieve excellent surface results because the cutting edge is perfectly shaped to taper towards the centre," adds Andreas Weck. For optimum process safety Zecha has developed the robust tool geometry anew, chosen an ideally suited carbide and had a matching coating designed. Originally conceived for hard machining, the new end mill cutters with corner radius in the 595H series are also suitable for roughing processing of chrome cobalt compositions. They are characterised by extremely smooth running, in particular because they are very good at dissipating the forces. One particularly economic advantage is the large swarf volumes achievable.
Processing demanding materials precisely
Zircon oxide is characterised by its mechanical stability, hardness and its high resistance, and is appreciated for its bio-compatibility and superb aesthetic qualities. In materials science the material is deemed as the ceramic equivalent of steel: The relatively high fracture toughness and bending and tensile strength of zircon oxide offer great advantages in practice - however, the milling tool quality required in its processing is that much greater. The two flute radius cutter in the 423 series (short version), 422 (shaft diameter 4 mm) and the 421 series (long version) are therefore fitted with a specially adapted and extremely durable diamond layer, which in no way influences the concentricity and geometric precisions.
Precisely whirled in titanium
An absolutely cylindrical and shape-accurate interior thread, whether for implant supports or for medical devices can be added with the patented whirl thread cutter in the series 462 both quickly and precisely in titanium and its alloys. Thus, maximum accuracy is combined with absolute reproducibility and surface quality in the smallest space during manufacture. Finishing can thus be dispensed with completely.
Protocolled quality at the highest level
Quality assurance and reproducibility are key factors in tool development and manufacture at Zecha. To achieve this all the manufacturing processes can be protocolled if desired and can be assigned via an identification number to the shaft end of every individual tool. It means that even years later the customer can re-order a tool that has exactly the same parameters or evidence the necessary quality requirements at any time.
Conclusion
The increasing automated manufacture of tooth replacements can shorten the treatment times for the patient considerably. It is not least the highly precise micro-tools tailored to the requirements of the modern dental laboratory that have a key role to play: they are thoroughly efficient as the laboratory can manufacture them quicker, they fully utilise machine capacities and allow the cutters to be employed for longer.
Thanks to Zecha tools, patients can enjoy a newly won sparkling smile quicker and for longer - and laboratories not only save enormously on costs in the process but can offer the highest processing quality at the same time.