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The special requirements for medical equipment processing machines mainly relate to the processing equipment's capabilities and processing technology levels, the reliability and operability of processing equipment and peripheral equipment, and the integration with existing medical equipment production areas. In addition, manufacturers are also responsible for achieving traceability of production documentation and production and minimizing process error rates.
Small workpieces are required for dental work
The difference between the Mikron HSM 400U Prodmed and the Mikron HSM 400U Prodmed Dental (Figure 2) is the different fixture sizes and different chip management methods. In the field of dental applications, the workpiece is only a small square with a side length of only 10 cm. Therefore, only the corresponding smaller fixture (System 3R Macro) can be used. The advantage of a small fixture is that it has less damage to the shape of the workpiece. Titanium plays an important role in the graft. When roughing this material, it is easy to produce a buildup on the milling tool. If the spindle uses a lower speed and a larger feed angle, this problem can be solved very well. At the same time, when finishing such materials, the speed of the main shaft should reach 30,000 r/min or more. Therefore, the drive shaft products of Swiss Step-Tec are used, which can reach the required application range. In addition, it is also important that each component of the device achieves consistent dynamics. This flexibility allows for shorter cycle times and higher machined surface quality.
Other requirements for machine tools are high alloy steels, such as X10CrNiS18-9 alloy materials. For this material, the machining spindle should have a particularly large torque. The overall equipment system must also be designed accordingly. With the Mikron UCP 600 Vario Prodmed milling machine with a fixed shaft designed to achieve a five-axis milling of the workpiece and a large amount of cutting. Automatic conversion of tools and pallets is also possible thanks to a flexible automation solution.
Producing clean end products is the highest standard
Milling machines or machining centers can also add lubricants to the job to replace the emulsion to produce a clean final product. Therefore, there must be no visible defects on the workpiece, such as residues or burrs of the processed material. Similarly, sophisticated clean room technology and disinfection measures are also requirements for the process.
Software modules reduce process optimization settings
The Smart-Machine-Module software system developed by the Swiss GF AgieCharmilles Group makes milling work smarter. The man-machine dialogue function allows the operator to obtain the information needed to better judge the state of the cutting process. This improves process safety and improves the processing quality of the workpiece, especially for automated operations that are unmanned. In general, such milling can achieve higher efficiency.
The Prodmed milling machine features a laser for measuring the tool and a 3D button for measuring the workpiece, which is a prerequisite for reliable production and good traceability. Combined with Heidenhain's iTNC 530 control system and Smart Machine software modules, the state of the equipment and process can be optimally adjusted and monitored. In addition, remote monitoring can be done over the phone if needed. Process data can be used for documentation.
There are a wide variety of medical components for milling, and even single-piece machining requires automated, automated machining processes. Therefore, for parts such as the graft bridge, the Mikron HSM 400U Prodmed Dental milling machine can be used with OpenMind's Hyperdent CAM software program for five-axis milling.
Machining blanks with a very small milling cutter
The manufacture of all ceramic bridges is still quite novel. Compared to the manufacturing operations using hard metal or ceramic indexing inserts, this refers to the sintering of the blanks. The amount of shrinkage generated during sintering can be accurately calculated. The Mikron HSM 400U Prodmed Dental Machining Center shapes the bar blank blanks based on the CAD/CAM data from the dental laboratory with a very small milling cutter and grinding needle of approximately 1 mm diameter. The spindle speed can be up to 42000r/min. Spiral column grafts can be processed using the Mikron HSM 400U Prodmed device. The Mikron UCP 600 Vario Prodmed machine is suitable for the processing of medical instruments such as leg files.
In the medical industry, combined with the use of intelligent processing technology, good economic benefits can be achieved. In the treatment of eye diseases, many parts can be milled on the Mikron HSM 400 Prodmed. The associated micro ceramic inserts can also be machined on AC Vertex F wire-cutting machines. Here, some eye disease treatment devices use a wire-cutting process for internal and external processing. The micro-blade is a very precise, electronically controlled cutting tool that is machined to the size of a thumb.
Medical equipment materials are the challenges of cutting technology
Cutting equipment, as is common in precision machining, is the basis for processing many medical devices and implants. However, traceability from individual components, individual solutions, to automation and processes, and processes still has some unique features in technical equipment. One of the important reasons is to meet the extremely high processing quality requirements of difficult-to-cut materials.