Standard for the Standardization of Machining Process and Step of Precision Parts

In the precision parts processing, the division of processes and steps is quite clear, fine to all aspects. The general processing industry is in accordance with the process or work to divide the task. Everyone is responsible for a part, or a team of people responsible for a part. The division of labor is clear and the task is clear.


The division of the precision parts processing process is carried out with reference to the machined parts and the design process. In the CNC machine tools on the precision parts processing, processes can be more concentrated in a clamping as much as possible to complete most or all of the process. First of all, according to the parts of the drawings, to consider whether the machined parts can be completed in a CNC machine tool parts of the processing work, if not decide which part of the CNC machine tools, which part of the other machine tools, Of the processing steps to be divided. Process and step of the division according to the specific parts of the structural characteristics, technical requirements, such as a comprehensive consideration.
General process division:

The division of the steps is mainly from the processing accuracy and efficiency of both considerations. In a precision parts processing process often need to use different tools and cutting the amount of different surfaces for processing. In order to facilitate the analysis and description of more complex processes, in the process and subdivided into steps.

The principle of division:

1. The same surface by roughing, semi-finishing, finishing in turn to complete, or all of the processing surface by the first rough after finishing separately.

2. For both the milling surface and the boring parts, can be the first milling surface after boring. According to this method to divide the steps, you can improve the accuracy of the hole. Because of the large cutting force when milling, the workpiece is prone to deformation. The first milling surface boring, so that it has a period of time to restore, to reduce the deformation caused by the accuracy of the hole.

3. Work by tool. Precision parts processing Machine table rotary table than the tooling time is short, can be divided into steps by tool to reduce the number of tool changes, improve processing efficiency.