• June 21, 2024
  • Shatou, Changan, Dongguan, CN
CNC machining of medical parts

How to Make Medical Parts Using CNC Machining?

CNC processing technology has become an important process in modern manufacturing, and its application in the medical industry is becoming more and more extensive. Precise and efficient production of medical parts is critical to ensuring the health and safety of patients. CNC machining can provide many advantages such as high precision, low cost, and short production cycle, so it has become the preferred process for manufacturing medical parts.

This article introduces the requirements, processing steps and benefits of CNC machining medical parts in detail.

Requirements for CNC Machining Medical Parts

1. Material selection

Medical parts usually require materials with high strength, corrosion resistance and good biocompatibility, such as stainless steel, titanium alloy, ceramics, etc. The choice of material should be determined according to the function of the part and the environment in which it is used.

2. Accuracy requirements

Medical parts usually require very high machining accuracy, especially those involving medical devices, such as surgical instruments, implants, etc. CNC processing machine tools must have high-precision processing capabilities to ensure the accuracy of the size and shape of parts.

3. Surface quality

The surface quality requirements of medical parts are usually relatively high, and the surface is flat, smooth, and free from scratches, burrs and other defects. For CNC machining, it is necessary to choose a suitable cutting process and tool to avoid poor cutting or surface damage.

4. Cleanliness and hygiene requirements

Medical parts need to have good cleanliness and hygiene performance, and be able to withstand high temperature and high pressure sterilization and other treatments. Pay attention to avoid contamination and cross-infection during CNC processing.

5. Documentation and quality management

The manufacture of medical parts usually requires strict documentation and quality management, including material certification, quality records, traceability, etc. CNC processing enterprises need to establish a sound quality management system to ensure that the manufactured medical parts comply with relevant laws, regulations and quality standards.

In short, CNC machining and manufacturing of medical parts needs to consider the requirements of material selection, precision requirements, surface quality, cleanliness and sanitation requirements, as well as documentation and quality management, to ensure the safety, reliability and biocompatibility of parts.

Steps of CNC machining medical parts

1. Determine the functions and requirements of the parts

Firstly, it is necessary to clarify the functions and requirements of the parts, such as size, shape, material, processing accuracy, etc.

2. Draw part drawings

According to the functions and requirements of the parts, use CAD software to draw the drawings of the parts, including geometric shapes, dimensions and tolerances.

3. Select the appropriate material

According to the use environment and requirements of the part, select the material suitable for processing, such as metal, plastic, etc., to ensure the strength and durability of the material.

4. Select CNC machine tools and cutting tools

According to the shape and processing requirements of the parts, select the appropriate CNC machine tools and cutting tools, including milling machines, lathes, drilling machines, etc., as well as the type and size of the cutting tools.

5. Design cutting parameters

According to the properties of materials and processing requirements, determine cutting parameters such as cutting speed, feed speed and cutting depth to ensure processing quality and efficiency.

6. Carry out tool path planning

According to the geometric shape and cutting requirements of the parts, use CAM software to plan the tool path, and determine the movement trajectory and processing sequence of the tool.

7. Perform NC programming

According to the results of tool path planning, use NC programming software to write NC programs, including tool radius compensation, cutting axis direction, feed mode, etc.

8. Trial processing and adjustment

After completing the NC programming, carry out trial processing, adjust and optimize according to the trial processing results to ensure the processing quality and precision of the parts.

9. Completion of NC machining

After adjustment and optimization, formally carry out NC machining, process according to the written NC program, and conduct inspection and testing as required.

10. Inspection and quality control

According to the design requirements, inspection and testing of parts are carried out to ensure that the size, shape and function of the parts meet the requirements, reliability and stability.

Benefits of CNC Machining for Medical Industry Products and Parts

The benefits of CNC machining for medical industry products and parts are as follows:

1. High precision

CNC processing equipment can realize high-precision processing, which can meet the strict requirements of the medical industry for the precision of products and parts, and ensure the quality and safety of products.

2. A variety of materials can be processed

CNC processing can process a variety of materials, including metals, plastics and composite materials, etc. Common products and parts in the medical industry can be processed by CNC processing equipment.

3. High production efficiency

CNC processing equipment can realize automatic processing, high production efficiency, can reduce manual operation errors and waste, and improve production efficiency and product delivery speed.

4. Strong flexibility

CNC processing equipment can be adjusted according to different design requirements, and can flexibly process products and parts of various shapes and sizes to meet the different application requirements of the medical industry.

In general, CNC processing has the advantages of high precision, multi-material processing, high production efficiency and strong flexibility for the processing of medical industry products and parts, which can meet the requirements of the medical industry for product quality and safety, and improve production efficiency and product delivery speed.

CNC machining of medical parts: what are the most important applications?

CNC machining has many important applications in the medical field, the most important of which can be summarized as follows:

1. Instrument and equipment component manufacturing

CNC machining can be used to produce various components of medical equipment and equipment, such as surgical instruments, artificial joints, implants and external fixators, etc. These parts require precise and fine machining to ensure their fit, durability and performance.

2. Medical device customization

CNC machining can be used to manufacture customized medical devices such as prosthetics, orthotics and dental implants according to the specific requirements and anatomy of the patient. Custom instruments can be better adapted to the physical characteristics of the patient, providing better treatment outcomes.

3. Medical model making

CNC machining can be used to make medical models, such as human organ models, bone models and blood vessel models. These models can be used in medical education and training to help doctors and students better understand and learn about human body structure and disease characteristics.

4. Medical research and development

CNC machining plays an important role in medical research and development. It can be used to produce and test medical device prototypes and samples, as well as to conduct various experiments and trials. The application of CNC processing technology can accelerate the development and promotion of new products, and promote the progress and innovation of medical technology.


With the continuous development and innovation of medical technology, the application prospect of CNC machining technology in the manufacture of medical parts is very broad. It can provide high-quality, high-precision part processing, while reducing production costs and improving production efficiency. With the increasing demand for medical equipment worldwide, CNC machining technology will continue to play an important role in the medical industry and make great contributions to the development of the medical industry.

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