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CNC post-processing
Time：2025-11-26 16:08:44Hits：
The subdivision of hardware surface processing can be divided into: hardware oxidation processing, hardware painting processing, electroplating, surface polishing processing, hardware corrosion processing, and so on
Surface processing of hardware components:
1. Oxidation processing: When producing metal products (mainly aluminum parts), hardware factories apply oxidation processing to harden the surface layer of the metal products, making them less prone to wear and tear.
2. Painting process: Hardware factories adopt the painting process when producing large hardware products. This process prevents hardware components from rusting, such as daily necessities, electrical appliance casings, and craftworks
3. Electroplating: Electroplating is also a common processing technique in metal processing. Through modern technology, the surface of metal parts is electroplated to ensure that the product does not undergo mold growth or rusting even after prolonged use. Commonly electroplated items include screws, stamped parts, battery cells, automotive parts, small accessories, and so on,
4. Surface polishing: Surface polishing is commonly used in daily necessities. By deburring the surface of metal products, such as when we produce a comb, which is a metal piece formed by stamping, the edges and corners of the stamped comb are very sharp. We need to polish the sharp edges and corners into a smooth surface, so that they will not cause harm to the human body during use.
The processing method for the surface of CNC machined parts primarily depends on the technical requirements of the machined surface. However, it should be noted that these technical requirements may not necessarily be the ones specified in the part drawing. Sometimes, due to process reasons, they may exceed the requirements stated in the part drawing in certain aspects. For example, the processing requirements for the surface of some CNC machined parts may be increased due to misalignment of benchmarks. Or, higher processing requirements may be imposed on parts that are used as precision benchmarks.
Once the technical requirements for the surface of each CNC machined part are clear, the final machining method that can ensure these requirements can be selected accordingly, and the number of steps and the machining method for each step can be determined. The selected machining method for CNC machined parts should meet the requirements of part quality, good machining economy, and high production efficiency. Therefore, the following factors should be considered when selecting the machining method:
Any CNC machining method can achieve a considerable range of machining accuracy and surface roughness, but only within a relatively narrow range is it economical. The machining accuracy within this range is referred to as economic machining accuracy. Therefore, when selecting a machining method, one should choose the corresponding method that can achieve economic machining accuracy.
2. The properties of the CNC machined part material should be considered.
3. The structural shape and dimensional size of the CNC machined parts should be considered.
4. Consider productivity and economic requirements. When producing in large quantities, adopt efficient and advanced processes. It may even be necessary to fundamentally change the manufacturing method of the blank to reduce the labor intensity of machining.
5. The existing equipment and technical conditions of the factory or workshop should be taken into account. When selecting processing methods, full use should be made of existing equipment, the potential of the enterprise should be tapped, and the enthusiasm and creativity of workers should be brought into play. However, consideration should also be given to continuously improving existing processing methods and equipment, adopting new technologies, and enhancing the level of craftsmanship.
Surface processing of hardware components:
1. Oxidation processing: When producing metal products (mainly aluminum parts), hardware factories apply oxidation processing to harden the surface layer of the metal products, making them less prone to wear and tear.
2. Painting process: Hardware factories adopt the painting process when producing large hardware products. This process prevents hardware components from rusting, such as daily necessities, electrical appliance casings, and craftworks
3. Electroplating: Electroplating is also a common processing technique in metal processing. Through modern technology, the surface of metal parts is electroplated to ensure that the product does not undergo mold growth or rusting even after prolonged use. Commonly electroplated items include screws, stamped parts, battery cells, automotive parts, small accessories, and so on,
4. Surface polishing: Surface polishing is commonly used in daily necessities. By deburring the surface of metal products, such as when we produce a comb, which is a metal piece formed by stamping, the edges and corners of the stamped comb are very sharp. We need to polish the sharp edges and corners into a smooth surface, so that they will not cause harm to the human body during use.
The processing method for the surface of CNC machined parts primarily depends on the technical requirements of the machined surface. However, it should be noted that these technical requirements may not necessarily be the ones specified in the part drawing. Sometimes, due to process reasons, they may exceed the requirements stated in the part drawing in certain aspects. For example, the processing requirements for the surface of some CNC machined parts may be increased due to misalignment of benchmarks. Or, higher processing requirements may be imposed on parts that are used as precision benchmarks.
Once the technical requirements for the surface of each CNC machined part are clear, the final machining method that can ensure these requirements can be selected accordingly, and the number of steps and the machining method for each step can be determined. The selected machining method for CNC machined parts should meet the requirements of part quality, good machining economy, and high production efficiency. Therefore, the following factors should be considered when selecting the machining method:
Any CNC machining method can achieve a considerable range of machining accuracy and surface roughness, but only within a relatively narrow range is it economical. The machining accuracy within this range is referred to as economic machining accuracy. Therefore, when selecting a machining method, one should choose the corresponding method that can achieve economic machining accuracy.
2. The properties of the CNC machined part material should be considered.
3. The structural shape and dimensional size of the CNC machined parts should be considered.
4. Consider productivity and economic requirements. When producing in large quantities, adopt efficient and advanced processes. It may even be necessary to fundamentally change the manufacturing method of the blank to reduce the labor intensity of machining.
5. The existing equipment and technical conditions of the factory or workshop should be taken into account. When selecting processing methods, full use should be made of existing equipment, the potential of the enterprise should be tapped, and the enthusiasm and creativity of workers should be brought into play. However, consideration should also be given to continuously improving existing processing methods and equipment, adopting new technologies, and enhancing the level of craftsmanship.
