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What are the ways and means of machining precision parts?

February 27, 2024

For the mechanical industry, the substance they come into contact with most often is a series of parts and components. No matter which style or type, they are more or less familiar and know it. Which parts are used in which structure or which application position, the staff of the relevant industry knows it by heart. However, no matter which configuration is used, it needs to go through certain processing steps before it can be implemented in a specific mechanical device. Therefore, professionals call this step precision parts machining.

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There are many ways to process precision parts, such as heat treatment methods. A part, a single non-detachable part of a machine, is a basic component of a machine and a basic unit in the mechanical manufacturing process. Its manufacturing process generally does not require assembly processes. Such as bushings, shingles, nuts, crankshafts, blades, gears, cams, connecting rod body, connecting rod head, etc.


A, precision parts cutting processing. There are mainly precision turning, mirror grinding and grinding, etc. In the precision lathe with fine grinding single crystal diamond turning tool to hold micro-turning, cutting thickness of only about 1 micron, commonly used in the processing of non-ferrous metal materials such as spherical, aspheric and flat reflective mirrors and other high-precision, highly polished appearance of the parts.


Second, precision parts processing. Precision parts processing accuracy to nanometers, and even finally to the atomic unit (atomic lattice distance of 0.1 to 0.2 nanometers) as the goal, ultra-precision parts cutting and processing methods can no longer adapt, it is necessary to resort to special precision parts processing methods, that is, the application of chemical energy, electrochemical energy, heat or electricity, etc., so that these energies beyond the joint energy between atoms, so as to remove part of the workpiece appearance of inter-atomic adhesion, The method of ultra-precision machining is achieved by applying chemical, electrochemical, thermal or electrical energy, etc., so that these energies exceed the inter-atomic union energy, thus removing part of the inter-atomic adhesion, union or lattice deformation of the workpiece exterior.

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This type of processing includes mechanical chemical polishing, ion sputtering and ion implantation, electron beam exposure, laser beam processing, metal vapor deposition and molecular beam epitaxy, etc.