Precision Aluminium Pulley For Motor

Process benchmarks are divided into assembly benchmarks, measurement benchmarks and positioning benchmarks according to their uses. Positioning datum for large-scale machining The datum used for workpiece positioning during processing is called positioning datum. As the surface (or line point) of the positioning reference, only the unprocessed blank surface can be selected in the process. This positioning surface is called the rough reference. The machined surface can be used as the positioning reference in each subsequent process. The positioning surface is called the fine datum. Precision and ultra-precision machining is an important part of modern machining and manufacturing technology. When used, it is mainly an important indicator to measure the level of high-tech manufacturing. With the development of computer and information technology, manufacturing Technology puts forward higher requirements, not only to obtain extremely high dimensional, geometric and positional accuracy, but also to obtain extremely high surface quality.

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