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Common Surface Treatment for CNC Hardware Processing

The machining method of CNC surface finish machining parts depends first of all on the technical requirements of the machining surface. It should be noted, however, that these technical requirements are not necessarily the requirements set out in the parts diagram, and may sometimes be machined for some process reasons higher than those on the parts diagram, such as increasing the machining requirements for the surfaces of certain CNC machining parts due to non-convergence of references, or may be subject to higher machining requirements due to being used as an accuracy reference.

1. The common surface treatment for CNC hardware machining

  • 1.1 Oxidation processing: hardware factory in the production of hardware finished products (mainly aluminum) to its oxidation processing, so that the surface of hardened hard, so that it is not easily subject to wear.

  • 1.2 Paint processing: hardware factory in the production of large hardware finished products are used in surface processing, through painting processing to avoid rust, such as daily necessities, electrical shells, handicrafts and so on.

  • 1.3 Electroplating: electroplating is also the most common metal processing process, through modern technology on the metal surface plating, to ensure that products do not occur under long-term use of mold rust, electroplating processing products common are screws, stamping parts, battery blades, car parts, trinkets and so on.

  • 1.4 Surface polishing processing: surface polishing processing is generally more used in daily necessities, through hardware products for surface burrs treatment, if we produce a comb, comb is made of stamping hardware, then the corner of the comb is very sharp, we have to polish the sharp part of the corner into smooth, so that it will not cause harm to the human body.

2. Factors considered in CNC processing surface treatment techniques

  • 2.1 Any kind of CNC surface finish machining method can obtain processing accuracy and surface roughness have a considerable range, but only a narrow range is economical, this range of processing accuracy is economic processing accuracy. Therefore, when selecting the processing method, the corresponding processing method can obtain the precision of economic processing.

  • 2.2 Consider the nature of CNC surface finishing parts' materials.

  • 2.3 Consider the structural shape and size of CNC surface finishing parts.

  • 2.4 Consider productivity and economic requirements. High-efficiency advanced technology should be used in large quantities of production. It can even fundamentally change the way blanks are manufactured, reducing the amount of machining.

  • 2.5 Consider the existing equipment and technical conditions in the plant or workshop. When choosing the surface finishing method, we should make full use of the existing equipment, tap the potential of enterprises, and give full play to the enthusiasm and creativity of workers. However, we should also consider to continuously improve the existing processing methods and equipment, the introduction of new technologies and the improvement of process levels.

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