What are the machining requirements for precision parts?

Source:

(1) Generally speaking, due to the different roughness and accuracy of parts due to the amount of cutting, heating and cutting force of parts, in order to ensure the machining accuracy of parts, rough parts and precision mechanical parts must be processed separately. If the initial machining and precision machining continue, the precision of the precision machined part will be lost due to the different stresses.

(2) Rationalization of equipment selection. The machining of rough parts does not require high machining accuracy, but it is mainly to reduce the machining allowance, so precision machining must be a very high-precision machine tool. The heat treatment process is usually organized on the path of machining precision parts. The direction of the heat treatment process is as follows: in order to ensure the cutting characteristics of the metal, such as annealing, quenching, quality adjustment, etc., it is generally carried out before processing.

(3) Generally speaking, all precision parts have heat treatment methods, which can improve the cutting characteristics of metal. The machining and manufacturing of precision parts requires not only the precision and stability of machine tools and the accuracy of their tools and fixtures, but also precision measuring instruments for correction and measurement. Some are in the process of processing, some are after testing.

The process of mass hot forging and temperature calcination of a large number of hot forging two forgings is the process of directly changing the appearance of a raw material into a semi-specific product or a different product. This process is known as the process process and is also the standard for the machining process of parts. The production process for precision parts is more complex. The processing technology specifications of precision parts can be divided into forging, forging, stamping, welding, heat treatment, processing, installation, etc. The production process of precision parts refers to the general term of the CNC machining and machine installation process of the whole part, and other processes such as cleaning, inspection, equipment maintenance, oil seal, etc. change the surface properties of raw materials or semi-finished products. This process is known as CNC machining. The corresponding tool intermediate tracks have different conversion methods, and the precision part system has linear and circular interpolation functions.

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