Medical parts processing

The main difficulties in processing medical parts are as follows
1、 Difficult to process titanium alloy materials
90% of medical component implants are supported by Ti6AI-4V titanium alloy, which is lightweight, high-strength, and highly biocompatible. Titanium alloy 6Al-4V has become the most commonly used material for medical implant devices.
Titanium alloy has the characteristic of work hardening; The cutting process is relatively large, resulting in thin chips and forming a relatively small contact area on the tool; In addition, the high cutting force during the machining process, combined with the frictional force during chip flow, will comprehensively lead to excessive local cutting heat of the tool. However, titanium alloy has poor thermal conductivity, making it difficult to quickly transfer cutting heat.
2、 Reliable and compact machine tool fixtures
Medical parts and accessories equipment need to be able to process small and complex parts made of difficult to process materials with high precision requirements, such as substitute parts for processing bones and joints, which are quite complex; Due to the poor cutting performance of processed materials, the blank is usually made of bar material - which means a large amount of metal needs to be removed.
Medical parts and accessories processing
Medical parts and accessories require high requirements for workpiece materials, machining accuracy, and surface smoothness, which requires high reliability of the machining system; Therefore, extremely high requirements are put forward for machine tools, fixtures, cutting tools, CAM software, etc.
3、 Stable and efficient cutting tools
1. The requirements for machine tools are relatively high; Advanced medical device processing equipment such as Swiss automatic lathes, multi spindle machine tools, and rotary workbenches are completely different from commonly seen machining centers and lathes, with very small dimensions and compact structures; To meet this requirement, the structure of the cutting tool also needs to have a special design, requiring the tool size to be very small while ensuring the rigidity of the tool.
2. High requirements for processing efficiency; For medical devices, the most important thing is processing efficiency, which is the processing pace and requires the ability to replace blades in the shortest possible time.
3. From the perspective of the workpiece itself, it has significant differences from other mechanical components; Medical devices implanted into the human body first require excellent smoothness, high precision, and no deviation. This requires that the design of the blade structure and blade coating must meet high processing requirements.