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In the current machining industry, the development of high-end technology has achieved a leap and varied. Precision machining is not just what was previously required, and what is required in many fields is not simply how much it can meet the needs of users. The definition of precision machining, high precision machining, ultra precision machining, ultra precision machining is generally reflected in surface processing, what is the definition of ultra precision machining of CNC machined surface? Let’s take a look at the following analysis:
 
A. What is surface ultra-precision machining:
 
A, Superfinish and Microfinish are the meanings of surface ultra-precision machining, which are expressed by two different words.
 
Superfinish is a professional vocabulary widely used in the industry. Microfinish is a German vocabulary registered by Thielenhaus (Tilenhaus) many years ago. It has the same meaning as Superfinish. Both words are translated into superfine in Chinese, and there is no difference in meaning; here we use superfine on the outer surface as an example to briefly introduce what is superfine:
 
B, Microfinish, and Superfinish methods use the superimposed machining motion between the workpiece and the tool as a mark. Chips formed during the grinding process are immediately removed by a sufficiently flowing cleaning fluid. Therefore, the grinding force of the abrasive particles can be fully applied in the Superfinish method.
 
C, Superfinish and Microfinish can improve the macro and micro geometry (roughness and roundness), increase the support rate of the workpiece and reduce the load on the specific surface. The metamorphic layer can also be removed, so that the workpiece can use the full hardness and load of the running surface material in the application. In this way, the useful compressive stress in the surface edge region is improved, while the surface load is improved and the use of the workpiece is improved life.
 
D. In the Microfinish method, different specific range speeds are used for processing. First, the soft layer is quickly and vigorously ground and removed at a low speed. The second step is to achieve the final required surface requirements through higher speeds. In superfinishing, in addition to a specific range of speeds, the cnc machining results are also affected by other factors: pressure and the size of the abrasive stones.
 
E. For example, the shape accuracy of the crankshaft journal is directly related to the roughness peaks and valleys used to ensure surface lubrication. In addition to the shape accuracy, the bearings can achieve better roughness as much as possible. The oil pump gear is about better roughness and surface parallelism.
 
F, roughness peaks and soft layers can be ground away in less time. In order to achieve a completely uniform surface and improve the shape through surface contact. The meaning of improvement is not always the same according to the functional meaning of different individual elements.
 

1. Definition and technical application of ultra-precision machining:
    
   Aedeli is a world leader in ultra-refining technology. Ultra-refining technology is sometimes also referred to as short-stroke honing, fine grinding, polishing and grinding. It is widely used to improve the surface roughness and shape of workpieces. Generally, ultra-refining uses abrasive belts and oil stones to process workpieces. Almost all materials such as steel, ceramics, glass, plastic, etc. can use ultra-refining technology to improve the surface roughness and shape of the workpiece.

PTJ Shop focuses on high-precision cnc external processing with more than ten years of product experience. The cnc machining business provided includes CNC lathes, CNC milling machines, machining centers, composite machine tools, automatic lathes, etc., especially the new star CNC coring machine that has just been added some time ago. It has achieved a precision range of 0.01mm in the precision of processing complex precision parts, and has significant advantages in automotive parts and aerospace parts.

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