Principles of CNC Machining Sequence
Created on 2024.06.25
CNC machining provides a high-efficiency process with high quality, but if the design and arrangement for the processing are not correct, it will not be done well. If the processing is arranged incorrectly, disorder and unreasonable problems may occur.
- For the critical surface, the precise benchmark should be adjusted before machining to ensure that the processing accuracy is met.
- After the precise benchmark is processed, then it is going on roughing, semi-finishing and finishing for the main surface with high precise requirement. the surface requiring higher precise even have to polishing.
- The surface requiring high precision should be machined at the initial stage of the process because the other surfaces are fixed in position by it in the later process.
- When machining a precise benchmark surface, It is required to fix position by rough benchmark, during single part, small batch even mass production, The part with more complex feature or larger size, as well as the workpiece with larger dimensional errors, It should be arranged to scribing process before mechanical processing, so that it will provide positive benchmark for precise benchmark.
- For processes that are prone to waste, finishing and polishing can be placed earlier in the processing, while secondary surfaces can be placed later in the processing.
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