What level of machining accuracy can usually be achieved for turned parts?
Publish Time: 2024-07-01
The machining accuracy of turned parts is one of the important indicators to measure its manufacturing quality. Generally speaking, turning processing occupies a pivotal position in the machinery manufacturing industry, and its machining accuracy can usually reach a high level.
First of all, the turning machining accuracy is mainly affected by many factors such as machine tool accuracy, tool performance, machining technology and worker skills. Under ideal conditions, the turning machining accuracy can reach IT8 to IT7, and even on some high-precision lathes, when using finely polished diamond turning tools for high-speed fine turning of non-ferrous metal parts, the machining accuracy can reach IT7 to IT5. This means that the size, shape and position accuracy of turned parts can be well guaranteed.
Specifically, the measurement of turning machining accuracy usually includes the following aspects:
Dimensional accuracy: refers to the deviation between the actual size and theoretical size of turned parts. Within the accuracy range of IT8 to IT7, the dimensional deviation of turned parts is usually small, which can meet the assembly requirements of most mechanical products.
Shape accuracy: refers to the deviation between the actual shape and theoretical shape of turned parts. High-precision turning can ensure that the shape accuracy of turned parts reaches a high level, thus meeting the requirements of product shape accuracy.
Position accuracy: refers to the deviation between the actual position and theoretical position of each element on the turned parts. Turning can accurately control the relative position of each element on the workpiece to ensure that the product has good assembly performance and use performance.
In addition, the surface roughness of turning is also one of the important indicators to measure its processing quality. Generally speaking, the surface roughness of turning can reach between Ra0.8 and Ra0.04 microns, or even lower. This low-roughness surface helps to improve the wear resistance, corrosion resistance and sealing of turned parts.
In short, the processing accuracy of turned parts can usually reach a high level and can meet the manufacturing requirements of most mechanical products. In actual production, appropriate processing methods and process parameters should be selected according to the specific requirements and processing conditions of the product to ensure that the processing accuracy and surface quality of turned parts are in the best state.
