First, the principle of reference overlap. The design benchmark should be chosen as the positioning benchmark. Especially in the final completion, ensuring accuracy, more attention to this principle. This can avoid the base deviation of position error.
Second, the principle of unified standards. It is necessary to choose the uniform positioning datum surface treatment, and try to ensure the accuracy of each surface. Sometimes follow the principle of common benchmarks, and process it over and over again;
3. Self-reference principle. Some small machining allowance and uniform finishing process ensure processing quality and productivity, as well as the precision machining surface itself as a base level.
The above information is the principle of precision machining, at the time of processing, be sure to have these principles, because have these principles, in order to guarantee the machining quality and production efficiency, also can avoid position deviation and error, so, these are very important.
