Precision Machining - Process Standard for Sheet Metal Machining of CNC Precision Parts
- Dec 20, 2018 -

We know that nowadays ordinary lathes are more and more difficult to meet the needs of processing precision parts, and gradually replaced by CNC CNC lathe locks, then what is the technical standard for CNC precision parts processing?

On the lathe, the shape and size of the blank are changed by the rotational motion of the workpiece and the linear or curved motion of the tool, which is processed to meet the requirements of the drawing.


At the same time, the price of CNC machine tools is declining due to the improvement of production level. CNC precision parts are mainly processed by ultra-precision turning, mirror grinding and grinding.

The primary premise of CNC precision part machining is its accurate process reference. The benchmarks on the mechanical drawings are represented by capital letters A, B, C, D, etc. with a specific circled reference symbol. When the surface of the reference mark is aligned with the extension line of the surface or the size limit of the surface, the reference is based on the surface. When the reference symbol is aligned with the dimension line, the representation is based on the physical centerline of the dimension. The precision of the process mentioned above is a more general statement.


Assembly reference refers to the precision used to determine the position of a part in a part or product during assembly. The measurement reference refers to the standard used for the size and position of the machined surface to be measured during part inspection. Positioning reference refers to the reference used to position the workpiece in the machine or fixture during machining.

The process benchmark for CNC precision part machining is a prerequisite for the production of high quality parts. We, Rui, 晟 Specializing in the manufacture of metal non-standard parts, we have been making technical precipitation for 0.5~¢20mm stainless steel, titanium, aluminum and other metal precision parts.