Specialized In Providing Custom Metal Fabrication And Sheet Metal Manufacturing, Quality Metal Machining Services Since 2007
If it is said that the processing of precision parts depends on the pure basic level of product processing, then the hardware parts produced and processed cannot reach the precision. In order to improve the level and accuracy of precision parts processing, it is necessary to choose the basic three principles of the essential surface, as follows:
Principle 1: the principle of datum coincidence. The design datum as far as possible should be selected as the positioning datum. Especially in the final completion, to ensure the accuracy, more attention should be paid to this principle. In this way, the position error reference deviation can be avoided;
Principle 2: the principle of datum unification. Various surface treatments of a unified positioning datum should be selected to ensure the positional accuracy between the surfaces as much as possible; sometimes the principle of common datum should be followed for repeated processing;
Principle 3: Self-base principle. Some small machining allowances and a uniform finishing process ensure machining quality and productivity, with the precision machined surface itself as a base level.
A clear understanding of the above three principles of precision parts processing is of great help to the process improvement of CNC machining.
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