The machining accuracy of CNC Turned Parts usually depends on multiple factors, including machine tool accuracy, programming technology, tool selection, machining parameter settings, etc.
CNC machining can provide high-precision machining of parts. Generally, CNC machine tools can control the accuracy of machining outer diameters between 0.02 mm and 0.005 mm. Some high-precision CNC machining centers can achieve higher accuracy, for example, in some cases, the outer diameter machining accuracy can reach 0.004 mm.
Influencing factors:
Machine tool accuracy:
The geometric error, thermal deformation error, and servo feed system error of CNC machine tools are the main factors affecting the machining accuracy of CNC Turned Parts.
The design and manufacturing quality of machine tools determine their basic accuracy, and the maintenance and use of machine tools can also affect their long-term accuracy.
Programming techniques:
The determination of the compilation origin and programming processing techniques by programmers have a direct impact on the machining accuracy of CNC Turned Parts. Inaccurate origin compilation or inaccurate data processing can lead to machining program errors, thereby affecting the quality of workpiece processing.
Tool selection:
Choosing the appropriate tool is crucial for ensuring machining accuracy. The wear and improper selection of cutting tools can affect the machining quality of CNC Turned Parts.
Processing parameter settings:
Processing parameters include processing speed, feed rate, processing depth, cutting amount, etc. Setting these parameters correctly can ensure the accuracy of part shape, size, and surface finish.
Processing environment:
A stable processing environment, including cleanliness, dryness, no electromagnetic interference, and stable temperature and humidity conditions, helps to maintain the stability and accuracy of processing accuracy.
Processing accuracy range
Outer diameter machining accuracy: generally between 0.02 mm and 0.005 mm, high-end machine tools can reach 0.004 mm or lower.
Drilling accuracy: The tolerance level can generally reach IT10, and the surface roughness of the workpiece is between 12.5-6.3 microns.
Precision milling accuracy: The tolerance can generally reach IT16-IT8, and the surface roughness is 0.63-5 μ m.
Boring machining accuracy: For steel workpieces, the machining accuracy tolerance level can reach IT9-IT7, and the surface roughness is 2.5-0.16 microns.