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How to divide the machining process

November 25, 2022

The division of NC machining processes can generally be done in several ways.

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(1) The centralized tool sorting method is to divide the process by the tool used, using the same tool to machine all the parts that can be done on the part. A second tool is used and a third tool is used to do the rest. This reduces the number of tool changes, compresses idle time, and reduces unnecessary positioning errors.

(2) Sorting method by machining parts For parts with more machining content, the machining parts can be divided into several parts according to their structural characteristics, such as internal shape, external shape, surface or plane. In general, the plane and first processing the positioning surface, and then processing the hole; first processing simple geometry, and then processing complex geometry; first processing the lower precision parts, and then processing the parts with higher precision requirements.

 

(3) Roughing and finishing sequence method is prone to machining deformation of the parts, and since deformation may occur after roughing, shape correction is required, so in general, roughing and finishing should be processed separately. . .
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In summary, when dividing the process, the structure and process of the part, the function of the CNC machining center machine, the number of parts CNC machining content, the number of installations and production organization should be flexible. That unit. It is also recommended to use the principle of process concentration or process decentralization, which should be determined according to the actual situation, but must be reasonable.