CNC turning and milling compound processing manufacturers introduce that on the lathe, the rotary motion of the workpiece and the linear or curvilinear motion of the tool are used to change the shape and size of the blank, and process it to meet the requirements of the drawing.
It is more and more difficult for ordinary machine tools to meet the needs of machining precision parts, and at the same time, due to the improvement of production level, the price of CNC machine tools is falling from time to time. CNC precision parts processing mainly includes ultra-precision turning, mirror grinding and grinding.
The primary premise of CNC precision parts processing is the accuracy of the process benchmark. The benchmarks on the mechanical drawings are all represented by capital letters A, B, C, D, etc. with a specific circled benchmark symbol. When the benchmark symbol is aligned with the surface When the extension line of a face or the size limit of the face is used, it means that the face is the reference.
When the datum symbol is aligned with the dimension line, it means that the entity center line of the dimension is the datum. As mentioned above for you, the precision of craftsmanship is a relatively general statement.
CNC turning and milling composite processing manufacturers analysis, assembly benchmark, refers to the accuracy of the assembly used to determine the position of the part in the component or product. The measurement datum refers to the specification for the size and position of the machined surface to be measured when the part is inspected. The positioning datum refers to the datum used for positioning the workpiece in the machine tool or fixture during processing.