Time:2023-09-21 Preview:
1. The dimensioning of part drawings should be in line with the convenience of programming
On CNC machining drawings, it is advisable to use the same benchmark to quote dimensions or directly provide coordinate dimensions. This annotation method is not only convenient for programming, but also for coordinating the setting and calculation of design standards, process standards, detection standards, and programming zero points.
2. The geometric element conditions of the part contour structure should be sufficient
When programming, all geometric elements that make up the contour of the part need to be defined. When analyzing part drawings, it is necessary to analyze whether the conditions of various geometric elements are sufficient. If not, it is impossible to program or shape the processed parts.
3. Can the required machining accuracy and dimensional tolerances of the parts be guaranteed
Although CNC machine tools have high machining accuracy, for some special situations, such as the processing of thin-walled parts, due to the poor rigidity of thin-walled parts, the cutting force generated during processing and the elastic retreat of thin-walled parts are prone to vibration of the cutting surface, making it difficult to ensure the dimensional tolerance of thin-walled thickness, and the surface roughness also increases. Based on practical experience, for thin-walled parts with a larger area, when their thickness is less than 3mm, This issue should be given sufficient attention in the process.
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