Mechanical polishing is a polishing method that obtains a smooth surface by removing the convex parts after polishing through cutting and plastic deformation of the material surface. It generally uses oilstone strips, wool wheels, sandpaper, etc., and is mainly manually operated. Special parts such as the surface of the rotating body can use auxiliary tools such as a turntable. For high surface quality requirements, ultra precision polishing can be used. Ultra precision polishing is the use of specially designed grinding tools, which are tightly pressed onto the machined surface of the workpiece in a polishing fluid containing abrasives and perform high-speed rotational motion.

Precision metal stamping is a large-scale metal processing process that uses stamping tools to create sheet metal components by pressing the material into the desired shape. This is done according to a pattern, where each part is removed from the motherboard after stamping.
The precision hardware stamping method allows manufacturers to manufacture parts that require undercutting, multiple features, or fragile wall assembly. It uses high-pressure equipment to press metal plates into the mold, resulting in geometric accuracy and excellent surface finish of the product's shape.

The accuracy of CNC machine tools ensures consistent product quality. This process is more precise than ordinary machine tool processing and can be repeated in exactly the same way over and over again. Improved production speed and efficiency. Computers are used to control machine tools, and the process is automated, thereby improving production speed and quality. Considering that the machine tool is not fatigued or requires rest, it is more efficient than regular machine tool processing.

The characteristic of material separation achieved by ordinary stamping is that when the lower edge of the stamping die is squeezed into the material to a certain depth, the material undergoes damage and micro cracks appear. The upper and lower edges have not yet contacted, and the plastic deformation of the material has been completed. At this point, the material is destroyed and divided into two parts to complete the entire punching process. Precision stamping, on the other hand, achieves material separation in the form of deformation, that is, separation is achieved only after the upper and lower cutting edges of the die come into contact. The characteristic of this separation process is that the material does not undergo damage throughout the entire stress process.

Most turn-milling composite machining is completed on a turning center, while the general turning center only replaces the ordinary turret tool holder of a CNC lathe with a turret tool holder with a power tool, and the spindle adds a C-axis function. Due to limitations in the structure and overall dimensions of the turret tool holder, the power of the power head is low, the rotational speed is not high, and larger tools cannot be installed. This type of turning center is mainly for turning, and the milling and drilling functions are only for auxiliary processing. The high cost of power tool holders results in high costs for turning centers

The turning and milling composite machining center is a machine tool with B-axis linkage and C-axis linkage that can perform turning and milling processing. It can be said that all or most of the processing of a part can be completed on the turning and milling composite machine tool, so it is also known as a small production line. It not only improves the accuracy of products and the efficiency of processing products, but also greatly saves the floor space of machine tools for enterprises. In the past, it was necessary to complete the processing of a part on several machine tools, but now only one machine is needed to complete all the processing.