2023-12-28
Medical equipment parts refer to spare parts, semi-finished products, or finished products used for the assembly of finished medical equipment. The machining of medical equipment parts plays a very important role in the medical industry. The quality and performance of medical equipment directly affect the development of the medical industry and the health of patients, so the processing requirements for medical equipment parts are very strict.
The development and progress of medical equipment cannot be separated from the support of modern processing technology. The machining processes of medical equipment are very important. When it comes to machining medical parts for the medical business, it is different than machining parts for other industries. Medical components must adhere to additional standards than most common metal components that must comply with ISO 9001 quality management.
- The process of the medical equipment parts processing machine includes the processing preparation, processing, and processing of the parts.
- Three aspects of post-processing. The processing preparation stage requires all preparations according to the design requirements of the product.
- Required tooling, cutting tools raw materials, etc. The processing stage refers to according to the requirements of the product,
- Parts are processed from raw materials to their final shape and size through a series of machining operations.
- The post-processing stage mainly includes rust removal, cleaning, size adjustment, inspection, etc.
- Ensure that processed parts meet standard requirements.
The technology of medical equipment parts processing machines includes a variety of processing methods, such as milling, turning, drilling, chipping, grinding, etc. These processing methods are selected according to different part shapes, sizes, materials, suitable cutting tools, and machining parameters to achieve efficient and precise machining. For example, during the milling process, the workpiece can be fixed by selecting the appropriate milling cutter and cutting parameters.
On the workbench, through the tool's rotation and the workbench's movement, a layer is removed from the surface of the workpiece. Get the part with any shape and size you want.
What are the difficulties in processing medical equipment parts?
- Titanium alloy materials that are difficult to machine
90% of medical device implant components are made of Ti6Al-4V titanium alloy. Due to its lightweight, high strength, and high biocompatibility, titanium alloy 6AL-4V has become the most commonly used material for medical implant devices. Titanium alloys have work-hardening properties. The machining process has a large shear angle, resulting in thin chips and a relatively small contact area on the tool. In addition, the high cutting force during machining, combined with the friction during chip flow, will comprehensively lead to excessive local cutting heat of the tool. Titanium alloys have poor thermal conductivity, so the cutting heat cannot be conducted out quickly. Therefore, a large amount of cutting heat is concentrated on the cutting edge and tool surface. High cutting force and cutting heat will cause the formation of craters and rapid tool failure.
- Reliable and compact machine tool fixtures
Medical device processing equipment needs to be able to process small and complex parts made of titanium alloy or stainless steel with high precision requirements. Processing of bone and joint replacement parts is quite complex. Therefore, part of the part is cast into a near-finished shape, which adds to the hassle of requiring complex and expensive fixtures to be manufactured.
medical equipment parts have high requirements on workpiece materials, processing accuracy, surface finish, etc., which requires high reliability of the processing system. As a result, extremely high requirements are placed on machine tools, fixtures, cutting tools, CAM software, etc. Workpieces are typically processed on advanced medical device processing equipment such as Swiss automatic lathes, multi-spindle machine tools, and rotary tables. Most of these machine tools are characterized by their very small size and compact structure.
- Stable and efficient cutting tools
Generally speaking, there are three differences between the medical device industry and other mechanical processing industries: First, the requirements for machine tools are relatively high. Advanced medical device processing equipment such as Swiss automatic lathes, multi-spindle machine tools, and rotary tables completely differ from the usual machining centers and lathes. They are minimal in size and with very compact structures. To comply with such requirements, the structure of the tool also needs to be specially designed, and the size of the tool must be small while ensuring the rigidity of the tool.
Second, there are high requirements for processing efficiency. For medical devices, the most important thing is processing efficiency, which is the processing rhythm. It is required to replace the blade in the shortest time.
Thirdly, The medical equipment parts themselves are very different from other mechanical parts. Medical devices implanted in the human body first require a very good surface finish, very high precision, and no deviation. This requires the tool to meet high processing requirements from the design of the blade structure to the design of the blade coating. In addition, it also includes the repeated positioning accuracy of the blade, which cannot ignore the high-quality requirements while ensuring improved efficiency.
Whether it is in the past, present, or future, the medical industry is indispensable to human beings. Medical equipment, surgical tools, and other critical products are manufactured by CNC technology. DMTC(Shenzhen DMTC Intelligent Technology CO., LTD) provides precision specialty and micro CNC machining services for medical equipment parts. Welcome to send an inquiry!
