The basic research focuses on how to reduce the deviation and improve the accuracy. Therefore, the basic principles for selecting the natural surface are as follows:
1: Principle of datum coincidence. The design datum as far as possible shall be selected as the positioning datum. Uniqueness is at the end of the final, to ensure accuracy, we should pay more attention to this principle. In this way, it is advisable to prevent the formation of position deviation datum deviation;
2: The principle of datum unification. It is necessary to select a unified surface treatment for positioning datum plane, although the position accuracy between the surfaces shall be ensured, and the processing shall be repeated occasionally according to the principle of common datum;
3: The principle of self reference. Some small machining allowance and unified finishing process ensure machining quality and production rate, as a basic level with carefully machined surface itself.
That’s all. We’re looking forward to seeing you next time. We’ll pay attention to safety in haze weather.
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