As a machine tool system with high scientific and technological content and high precision, specially used for processing complex surfaces, five-axis machining machine tools have a pivotal influence on the national aerospace, military, scientific research, precision instruments, high-precision medical equipment and other industries. Medical parts and tools need to be designed precisely enough to ensure that the components used for surgery or replacement parts fit perfectly. Incorrect cuts or imperfect edges can cause medical supplies to become unusable. This makes five-axis machining the preferred way to create custom medical tools and components.

Reasonable cutting parameters are the key factors to ensure the accuracy of parts in five-axis machining. In the processing of thin-walled parts with high precision requirements, symmetrical processing is generally adopted to balance the stress generated on both sides of the opposite side to achieve a stable state, and the workpiece is smooth after processing. However, when a large amount of cutting is taken in a certain process, the workpiece will be deformed due to the loss of balance of tensile stress and compressive stress.

The deformation of thin-walled parts is multifaceted, the clamping force when the workpiece is installed, the cutting force when the five-axis workpiece is processed, the elastic deformation and plastic deformation when the workpiece is hindered by the cutting tool, and the temperature of the cutting zone is increased and the thermal deformation is generated. Therefore, when roughing, the amount of back cutting and feed can be larger; When finishing, the tool amount is generally 0.2-0.5mm, the feed amount is generally 0.1-0.2mm /r, or even smaller, the cutting speed is 6 ~ 120m/min, and the cutting speed is as high as possible when finishing, but it is not easy to be too high. Reasonable selection of cutting parameters, so as to achieve the purpose of reducing the deformation of parts.

For deformable workpieces, corresponding countermeasures should be adopted in blank and processing technology, which should be analyzed according to different situations and a suitable process route can be found. Of course, the above method is only to further reduce the deformation of the workpiece, if you want to get a higher precision workpiece, but also need to continue to learn, explore and research.